/* Fonts được nạp trong <head> bằng preconnect + <link> để không chặn render (xem index.html) */

:root {
  --bg: #020c1a;
  --panel: #071828;
  --panel-2: #051220;
  --line: rgba(0, 180, 255, 0.1);
  --text: #eef4fb;
  --muted: #8cb0cc;
  --soft: #4e6a82;
  --white: #ffffff;
  --red: #00d4ff;         /* electric cyan accent */
  --red-2: #0066ff;       /* deep blue */
  --green: #00c87a;       /* emerald accent */
  --cta: #0db870;         /* CTA button base */
  --cta-dark: #076b3f;    /* CTA button deep */
  --purple: #2f6fe8;      /* royal blue (was purple) */
  --magenta: #1746c4;     /* deep blue (was magenta) */
  --cyan: #00e5ff;        /* bright cyan */
  --neon-glow: rgba(0, 200, 255, 0.15);
  --purple-glow: rgba(47, 111, 232, 0.12);
  --radius: 6px;
  font-family: "Inter", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

:root[data-theme="light"] {
  --bg: #edf2f8;
  --panel: #ffffff;
  --panel-2: #e2eaf4;
  --line: rgba(0, 119, 255, 0.16);
  --text: #0d1520;
  --muted: #3d5068;
  --soft: #6b7a8d;
  --white: #ffffff;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(0, 40, 120, 0.18), transparent 60%),
    radial-gradient(ellipse 60% 40% at 0% 50%, rgba(0, 30, 100, 0.12), transparent 50%),
    radial-gradient(ellipse 60% 40% at 100% 60%, rgba(0, 50, 140, 0.1), transparent 50%),
    radial-gradient(ellipse 70% 30% at 50% 100%, rgba(0, 60, 160, 0.15), transparent 50%),
    linear-gradient(180deg, #010810 0%, #020c1a 15%, #03112a 40%, #020e22 65%, #010a16 85%, #000610 100%);
  background-attachment: fixed;
  color: var(--text);
  font-family: "Inter", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  text-rendering: geometricPrecision;
  -webkit-font-smoothing: antialiased;
}

body::selection {
  background: var(--red);
  color: #fff;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea {
  font: inherit;
}

img {
  display: block;
  width: 100%;
}

.container {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.app-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: grid;
  min-height: 68px;
  grid-template-columns: auto auto 1fr auto auto;
  align-items: center;
  gap: 24px;
  border-bottom: 1px solid rgba(0, 180, 255, 0.08);
  padding: 0 28px;
  background: rgba(2, 8, 20, 0.96);
  backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 rgba(0, 180, 255, 0.06), 0 4px 28px rgba(0, 0, 0, 0.5);
  text-transform: uppercase;
}

:root[data-theme="light"] .app-header {
  background: rgba(255, 255, 255, 0.92);
}

.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  color: var(--white);
}

.logo__img {
  width: 50px;
  height: 50px;
  object-fit: contain;
  border-radius: 8px;
  filter: invert(1) brightness(1.1);
  transition: all 0.3s ease;
}

@keyframes logoNeonBreathe {
  0%, 100% {
    filter: invert(1) brightness(1.1)
      drop-shadow(0 0 8px rgba(0, 229, 255, 0.2))
      drop-shadow(0 0 20px rgba(47, 111, 232, 0.1));
  }
  50% {
    filter: invert(1) brightness(1.2)
      drop-shadow(0 0 16px rgba(0, 229, 255, 0.45))
      drop-shadow(0 0 40px rgba(47, 111, 232, 0.25))
      drop-shadow(0 0 60px rgba(0, 229, 255, 0.1));
  }
}

.logo:hover .logo__img {
  filter: invert(1) brightness(1.3)
    drop-shadow(0 0 20px rgba(0, 229, 255, 0.6))
    drop-shadow(0 0 50px rgba(47, 111, 232, 0.3));
  animation: none;
  transform: scale(1.05);
}

/* Light mode: no invert, subtle blue glow */
:root[data-theme="light"] .logo__img {
  filter: none !important;
}

@keyframes logoLightBreathe {
  0%, 100% { filter: drop-shadow(0 0 4px rgba(0, 80, 180, 0.1)); }
  50% { filter: drop-shadow(0 0 12px rgba(0, 80, 180, 0.25)); }
}

:root[data-theme="light"] .logo:hover .logo__img {
  filter: drop-shadow(0 0 14px rgba(0, 80, 180, 0.3)) !important;
  animation: none;
}

.desktop-nav {
  display: flex;
  justify-content: center;
  gap: 8px;
}

.desktop-nav a {
  border-radius: var(--radius);
  padding: 10px 14px;
  color: var(--muted);
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.desktop-nav a:hover {
  background: var(--panel-2);
  color: var(--white);
}

.icon-button,
.cart-link {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border: 0;
  background: transparent;
  color: var(--white);
}

.icon-button {
  gap: 4px;
  padding: 9px;
}

.icon-button span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--white);
}

.cart-link {
  position: relative;
  cursor: pointer;
}

.cart-link svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.cart-badge {
  position: absolute;
  top: 2px;
  right: 0;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  border-radius: 9px;
  background: #ef4444;
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  line-height: 18px;
  text-align: center;
  pointer-events: none;
  display: none;
}

.cart-badge.is-visible {
  display: block;
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  min-height: unset;
  border: 1px solid var(--line);
  border-radius: 50%;
  padding: 0;
  background: var(--panel);
  color: var(--text);
  cursor: pointer;
  font-size: 0;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.theme-toggle::before {
  content: '☾';
  font-size: 16px;
  line-height: 1;
}

:root[data-theme="light"] .theme-toggle::before {
  content: '☀';
}

.theme-toggle:hover {
  border-color: rgba(0, 229, 255, 0.4);
  box-shadow: 0 0 12px rgba(0, 229, 255, 0.15);
}

.hero {
  position: relative;
  min-height: 100vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  background: var(--bg);
}

.hero__image {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 40% 50% at 22% 60%, rgba(0, 70, 200, 0.35), transparent 70%),
    radial-gradient(ellipse 30% 40% at 75% 25%, rgba(0, 60, 180, 0.35), transparent 60%),
    radial-gradient(ellipse 25% 18% at 55% 88%, rgba(0, 120, 255, 0.15), transparent 50%),
    radial-gradient(ellipse 20% 25% at 8% 12%, rgba(0, 100, 255, 0.12), transparent 45%),
    linear-gradient(170deg, #020a18 0%, #061a30 40%, #020c1a 100%);
}

:root[data-theme="light"] .hero__image {
  opacity: 0.8;
}

/* ── Hero body (copy wrapper) ── */
.hero__body {
  position: relative;
  z-index: 2;
  flex: 1;
  display: flex;
  align-items: flex-end;
  padding: 120px 0 52px;
}

.hero__copy {
  position: relative;
  max-width: 540px;
  color: #ffffff;
}

.hero__copy h1 {
  background: none;
  -webkit-background-clip: unset;
  -webkit-text-fill-color: #ffffff;
  background-clip: unset;
  color: #ffffff;
  font-size: clamp(44px, 5.2vw, 78px);
  line-height: 1.05;
  margin-bottom: 20px;
}

.hero__h1-accent {
  display: inline;
  color: var(--red);
  -webkit-text-fill-color: var(--red);
  text-shadow: 0 0 40px rgba(0, 207, 255, 0.4);
}

.hero__sub {
  max-width: 480px;
  color: rgba(200, 215, 230, 0.85) !important;
  font-size: 15px !important;
  line-height: 1.75 !important;
  margin-bottom: 4px;
}

.kicker,
.section-label {
  margin: 0 0 12px;
  color: var(--red);
  font-family: "Inter", sans-serif;
  font-size: 17px;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  text-shadow: 0 0 14px rgba(0, 207, 255, 0.25);
}

.section-label {
  color: var(--red);
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 820px;
  margin-bottom: 18px;
  font-family: "Inter", sans-serif;
  font-size: clamp(38px, 5.6vw, 72px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.01em;
}

h2 {
  margin-bottom: 16px;
  font-family: "Inter", "Segoe UI", sans-serif;
  font-size: clamp(22px, 2.6vw, 32px);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.01em;
}

h3 {
  font-family: "Inter", sans-serif;
  letter-spacing: 0;
}

.hero p:not(.kicker):not(.section-label),
.intro p:not(.section-label),
.contact li span {
  color: #c8ccd3;
  font-size: 15px;
  line-height: 1.7;
}

/* ── Hero visual: absolute top-right ── */
.hero__visual {
  position: absolute;
  top: 0;
  right: 0;
  width: 62%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
  overflow: hidden;
  filter: drop-shadow(0 0 60px rgba(0, 229, 255, 0.15)) drop-shadow(0 0 120px rgba(47, 111, 232, 0.08));
}

.hero__speaker {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 42% 40%;
  -webkit-mask-image:
    linear-gradient(to right, transparent 0%, black 22%, black 92%, transparent 100%),
    linear-gradient(to bottom, transparent 0%, black 10%, black 82%, transparent 100%);
  -webkit-mask-composite: destination-in;
  mask-image:
    linear-gradient(to right, transparent 0%, black 22%, black 92%, transparent 100%),
    linear-gradient(to bottom, transparent 0%, black 10%, black 82%, transparent 100%);
  mask-composite: intersect;
}

/* Hero CTA: neon gradient button */
.hero .button--light {
  background: linear-gradient(135deg, #00e5ff 0%, #0088ff 40%, #2f6fe8 100%);
  color: #ffffff;
  font-weight: 700;
  letter-spacing: 0.02em;
  box-shadow:
    0 0 25px rgba(0, 229, 255, 0.4),
    0 0 60px rgba(47, 111, 232, 0.15),
    inset 0 1px 0 rgba(255, 255, 255, 0.18);
  border: 1px solid rgba(0, 229, 255, 0.3);
  transition: all 0.3s ease;
}

.hero .button--light:hover,
.hero .button--light:focus-visible {
  box-shadow:
    0 0 40px rgba(0, 229, 255, 0.6),
    0 0 80px rgba(47, 111, 232, 0.3),
    0 8px 32px rgba(0, 60, 180, 0.3);
  border-color: rgba(0, 229, 255, 0.6);
  transform: translateY(-2px);
}

.hero .button--dark {
  border: 1px solid rgba(47, 111, 232, 0.35);
  box-shadow: 0 0 20px rgba(47, 111, 232, 0.1);
  transition: all 0.3s ease;
}

.hero .button--dark:hover {
  border-color: rgba(47, 111, 232, 0.6);
  box-shadow: 0 0 35px rgba(47, 111, 232, 0.2);
  transform: translateY(-2px);
}

/* German trust badge — neon */
.hero__trust {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 22px;
  color: rgba(0, 229, 255, 0.5);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-shadow: 0 0 12px rgba(0, 229, 255, 0.15);
}

/* ── Hero feature strip ── */
.hero__features {
  position: relative;
  z-index: 2;
  border-top: 1px solid rgba(0, 180, 255, 0.12);
  background: rgba(2, 12, 26, 0.78);
  backdrop-filter: blur(10px);
}

.hero-feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.hero-feature {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 22px 24px;
  border-right: 1px solid rgba(0, 180, 255, 0.1);
}

.hero-feature:last-child {
  border-right: none;
}

.hero-feature__icon {
  position: relative;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border: 1px solid rgba(0, 160, 255, 0.3);
  border-radius: 14px;
  color: #4db8ff;
  background: linear-gradient(145deg, rgba(0, 100, 220, 0.15), rgba(0, 60, 160, 0.06));
  box-shadow: 0 0 18px rgba(0, 120, 255, 0.1);
}


.hero-feature strong {
  display: block;
  color: var(--text);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 3px;
}

.hero-feature span {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.4;
}

/* Accent line under Vietnam — neon glow */
.hero__accent-line {
  width: 64px;
  height: 3px;
  margin-top: -10px;
  margin-bottom: 18px;
  background: linear-gradient(90deg, #00e5ff, #2f6fe8, #1746c4);
  border-radius: 2px;
  box-shadow: 0 0 12px rgba(0, 229, 255, 0.4), 0 0 30px rgba(47, 111, 232, 0.2);
  animation: accentLinePulse 3s ease-in-out infinite;
}

@keyframes accentLinePulse {
  0%, 100% { opacity: 0.8; box-shadow: 0 0 12px rgba(0, 229, 255, 0.4), 0 0 30px rgba(47, 111, 232, 0.2); }
  50% { opacity: 1; box-shadow: 0 0 20px rgba(0, 229, 255, 0.6), 0 0 50px rgba(47, 111, 232, 0.35); }
}

.project-section {
  display: none;
}

.button,
.load-more,
.contact-form button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 5px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.button--light {
  width: fit-content;
  margin-top: 18px;
  padding: 0 34px;
  background: linear-gradient(135deg, #0ecc7e 0%, #0a9c5e 50%, #076b3f 100%);
  color: #e8fff5;
  box-shadow: 0 0 22px rgba(0, 190, 110, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.14);
}

.button--dark {
  padding: 0 26px;
  border-color: rgba(0, 210, 255, 0.22);
  background: rgba(0, 30, 60, 0.35);
  color: var(--text);
  backdrop-filter: blur(4px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}

.hero-actions .button {
  margin-top: 0;
}

.button,
.load-more,
.contact-form button,
.checkout-form button {
  font-family: inherit;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    background-color 180ms ease,
    border-color 180ms ease;
}

.button:hover,
.button:focus-visible,
.load-more:hover,
.contact-form button:hover,
.checkout-form button:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 34px rgba(0, 207, 255, 0.2);
}

.button--light:hover,
.button--light:focus-visible {
  box-shadow: 0 0 40px rgba(0, 200, 110, 0.5), 0 8px 24px rgba(0, 100, 60, 0.25);
}

/* ── Projects section ── */
.projects-section {
  padding: 80px 0;
  background:
    radial-gradient(ellipse 40% 45% at 92% 25%, rgba(0, 100, 255, 0.22), transparent),
    radial-gradient(ellipse 35% 40% at 3% 65%, rgba(0, 70, 200, 0.18), transparent),
    radial-gradient(ellipse 50% 25% at 50% 100%, rgba(0, 80, 220, 0.12), transparent),
    var(--bg);
}

.projects-featured-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-bottom: 32px;
}

.project-featured-card {
  position: relative;
  border-radius: 10px;
  overflow: hidden;
  background: var(--panel);
  border: 1px solid var(--line);
  cursor: pointer;
  transition: transform 220ms ease, box-shadow 220ms ease;
}

.project-featured-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(0, 180, 255, 0.2);
}

.project-featured-card__media {
  position: relative;
  height: 280px;
  overflow: hidden;
}

.project-featured-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 500ms ease;
}

.project-featured-card:hover .project-featured-card__media img {
  transform: scale(1.05);
}

.project-featured-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(2, 12, 26, 0.9) 100%);
}

.project-featured-card__body {
  padding: 20px 22px 22px;
}

.project-featured-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 10px;
}

.project-tag {
  display: inline-block;
  padding: 3px 10px;
  border: 1px solid rgba(0, 207, 255, 0.28);
  border-radius: 20px;
  color: var(--red);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: rgba(0, 180, 255, 0.06);
}

.project-featured-card h3 {
  margin: 0 0 8px;
  color: var(--text);
  font-size: 18px;
  font-weight: 700;
  line-height: 1.3;
}

.project-featured-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.projects-pills-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(7, 24, 40, 0.5);
}

.projects-pill-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.projects-pill-label {
  color: var(--text);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.project-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.project-pill {
  display: inline-block;
  padding: 4px 12px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.04);
  transition: border-color 180ms, color 180ms;
}

.project-pill:hover {
  border-color: rgba(0, 207, 255, 0.4);
  color: var(--red);
}

.intro {
  position: relative;
  background:
    radial-gradient(ellipse 45% 45% at 88% 35%, rgba(0, 100, 255, 0.28), transparent),
    radial-gradient(ellipse 35% 40% at 3% 65%, rgba(0, 80, 220, 0.22), transparent),
    radial-gradient(ellipse 50% 25% at 45% 0%, rgba(0, 120, 255, 0.14), transparent),
    radial-gradient(ellipse 80% 15% at 50% 0%, rgba(0, 60, 180, 0.2), transparent),
    radial-gradient(ellipse 80% 15% at 50% 100%, rgba(0, 20, 60, 0.4), transparent),
    var(--panel);
  padding: 72px 0;
}

.solutions {
  position: relative;
  background:
    radial-gradient(ellipse 40% 50% at 8% 35%, rgba(0, 80, 220, 0.28), transparent),
    radial-gradient(ellipse 35% 35% at 88% 20%, rgba(0, 120, 255, 0.22), transparent),
    radial-gradient(ellipse 45% 40% at 55% 85%, rgba(0, 100, 255, 0.14), transparent),
    radial-gradient(ellipse 80% 12% at 50% 0%, rgba(0, 40, 120, 0.25), transparent),
    radial-gradient(ellipse 80% 12% at 50% 100%, rgba(0, 15, 50, 0.35), transparent),
    linear-gradient(180deg, #071828, #030e20, var(--bg));
  padding: 88px 0;
}

:root[data-theme="light"] .solutions {
  background: #edf3fa;
}

.section-head--compact {
  align-items: end;
  margin-bottom: 24px;
}

.solution-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

/* Solution card with background photo */
.solution-card {
  position: relative;
  min-height: 320px;
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
  cursor: pointer;
  transition: transform 220ms ease, box-shadow 220ms ease;
}

.solution-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(0, 180, 255, 0.3);
}

.solution-card__bg {
  position: absolute;
  inset: 0;
}

.solution-card__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.5) brightness(0.45);
  transition: transform 500ms ease, filter 300ms ease;
}

.solution-card:hover .solution-card__bg img {
  transform: scale(1.07);
  filter: saturate(0.65) brightness(0.55);
}

.solution-card__content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  height: 100%;
  min-height: 320px;
  padding: 22px;
  background: linear-gradient(180deg, transparent 30%, rgba(2, 8, 22, 0.9) 100%);
}

.solution-card__num {
  position: absolute;
  top: 18px;
  left: 18px;
  color: var(--red);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-shadow: 0 0 12px rgba(0, 207, 255, 0.5);
}

.solution-card h3 {
  margin: 0 0 8px;
  color: #ffffff;
  font-size: 18px;
  line-height: 1.25;
}

.solution-card p {
  margin: 0 0 14px;
  color: rgba(200, 220, 235, 0.85);
  font-size: 13px;
  line-height: 1.6;
}

.solution-card__link {
  color: var(--red);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  transition: opacity 180ms;
}

.solution-card__link:hover {
  opacity: 0.75;
}

.intro__grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(420px, 1.1fr);
  gap: 48px;
  align-items: center;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.metric-card {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid rgba(0, 207, 255, 0.18);
  border-radius: 10px;
  padding: 24px 22px 22px;
  background:
    radial-gradient(ellipse 110% 60% at 50% 0%, rgba(0, 180, 255, 0.08), transparent 55%),
    #071628;
  transition: border-color 200ms, box-shadow 200ms;
}

.metric-card:hover {
  border-color: rgba(0, 207, 255, 0.38);
  box-shadow: 0 0 28px rgba(0, 180, 255, 0.1);
}

.metric-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border: 1px solid rgba(0, 207, 255, 0.25);
  border-radius: 50%;
  color: var(--red);
  background: rgba(0, 180, 255, 0.06);
  margin-bottom: 14px;
  box-shadow: 0 0 0 3px rgba(221, 0, 0, 0.06), 0 0 12px rgba(255, 206, 0, 0.05);
}

.metric-grid strong,
.metric-grid span {
  display: block;
}

.metric-grid strong {
  font-family: "Inter", sans-serif;
  font-size: clamp(16px, 1.5vw, 24px);
  line-height: 1.2;
  background: linear-gradient(135deg, #00cffd 0%, #7de8fc 50%, #e8f8ff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 4px;
}

.metric-grid span {
  color: #c4c8d0;
  font-size: 11px;
  font-weight: 800;
  line-height: 1.45;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.metric-card__divider {
  width: 32px;
  height: 2px;
  margin: 12px 0;
  border-radius: 2px;
  background: linear-gradient(90deg, #1a1a1a 0%, #DD0000 45%, #FFCE00 100%);
  opacity: 0.75;
}

.metric-card__desc {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.65;
}

.section,
.catalog,
.detail {
  position: relative;
  padding: 96px 0;
}

.section:not(.section--raised):not(.projects-section) {
  background:
    radial-gradient(ellipse 40% 40% at 85% 25%, rgba(0, 100, 255, 0.18), transparent),
    radial-gradient(ellipse 35% 35% at 10% 70%, rgba(0, 80, 220, 0.14), transparent),
    var(--bg);
}

.catalog__subtitle {
  margin-top: 10px;
  max-width: 780px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.6;
}

.products-trust-strip {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 36px;
  padding: 14px 20px;
  border: 1px solid rgba(0, 180, 255, 0.12);
  border-radius: 6px;
  background: rgba(0, 30, 70, 0.25);
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
}

.products-trust-strip span {
  display: flex;
  align-items: center;
  gap: 8px;
}

.products-trust-strip__divider {
  opacity: 0.3;
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
}

.catalog__title {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 30px;
  margin-bottom: 30px;
}

.text-link {
  border-bottom: 1px solid currentColor;
  color: var(--muted);
  font-size: 15px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.featured-projects {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 18px;
}

.project-card {
  position: relative;
  min-height: 360px;
  overflow: hidden;
  background: #05080d;
  cursor: pointer;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease;
}

.project-card--large {
  min-height: 520px;
}

.project-card img {
  position: absolute;
  inset: 0;
  height: 100%;
  object-fit: cover;
  opacity: 0.72;
  filter: saturate(0.5);
  transition:
    transform 280ms ease,
    opacity 280ms ease,
    filter 280ms ease;
}

.project-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 22px 46px rgba(0, 0, 0, 0.5), 0 0 30px rgba(0, 207, 255, 0.06);
}

.project-card:hover img {
  transform: scale(1.045);
  opacity: 0.86;
}

.project-card::after {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 28%, rgba(0, 0, 0, 0.88));
  content: "";
}

.project-card div {
  position: absolute;
  right: 18px;
  bottom: 18px;
  left: 18px;
  z-index: 1;
}

.project-card span,
.project-card strong {
  display: block;
}

.project-card span {
  margin-bottom: 4px;
  color: var(--white);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.project-card strong {
  color: #c9ced6;
  font-size: 15px;
}

.project-strip {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 10px;
  margin-top: 18px;
}

.project-pill {
  border: 1px solid var(--line);
  padding: 14px;
  background: var(--panel);
  color: #cfd3dc;
  font-size: 13px;
  font-weight: 800;
  line-height: 1.35;
  transition: background-color 160ms ease, border-color 160ms ease, color 160ms ease;
}

.project-pill:hover {
  background: rgba(0, 207, 255, 0.07);
  border-color: rgba(0, 207, 255, 0.28);
  color: #ffffff;
}

:root[data-theme="light"] .project-pill {
  background: rgba(255, 255, 255, 0.82);
  color: #202938;
}

.section--raised {
  background:
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(0, 170, 255, 0.05), transparent),
    var(--panel);
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--line);
  margin-top: 22px;
}

.category-grid a {
  display: grid;
  min-height: 150px;
  place-items: center;
  gap: 12px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(ellipse 80% 80% at 50% 0%, rgba(0, 170, 255, 0.07), transparent 55%),
    #091a2e;
  text-align: center;
  transition:
    transform 180ms ease,
    background-color 180ms ease,
    border-color 180ms ease,
    box-shadow 180ms ease;
}

.category-grid a:hover {
  background: #102035;
  border-color: rgba(0, 207, 255, 0.35);
  box-shadow: 0 0 22px rgba(0, 207, 255, 0.07);
  transform: translateY(-3px);
}

.category-grid a:last-child {
  border-right: 0;
}

.category-grid svg {
  width: 32px;
  height: 32px;
  fill: none;
  stroke: var(--white);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.5;
}

.category-grid span {
  max-width: 120px;
  font-size: 13px;
  font-weight: 900;
  line-height: 1.35;
  text-transform: uppercase;
}

.catalog {
  background:
    radial-gradient(ellipse 40% 40% at 82% 12%, rgba(0, 120, 255, 0.24), transparent),
    radial-gradient(ellipse 40% 45% at 8% 78%, rgba(0, 80, 220, 0.22), transparent),
    radial-gradient(ellipse 30% 25% at 50% 45%, rgba(0, 100, 255, 0.1), transparent),
    linear-gradient(180deg, rgba(0, 160, 255, 0.04), transparent 30%),
    #071828;
}

:root[data-theme="light"] .catalog,
:root[data-theme="light"] .intro,
:root[data-theme="light"] .section--raised {
  background: #e8f0f9;
}

:root[data-theme="light"] .product-card,
:root[data-theme="light"] .metric-grid div,
:root[data-theme="light"] .category-grid a {
  background: #ffffff;
  color: #151922;
}

:root[data-theme="light"] .product-card__media {
  background:
    radial-gradient(circle at center, #cfdff5, transparent 52%),
    linear-gradient(135deg, #ffffff, #e2eaf4);
}

.search-box {
  display: flex;
  width: min(540px, 100%);
  gap: 10px;
  align-items: stretch;
}

.search-box__input-wrap {
  position: relative;
  flex: 1;
}

.search-box__icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  color: var(--muted);
  pointer-events: none;
}

.search-box input {
  width: 100%;
  min-height: 48px;
  padding: 0 16px 0 42px;
  border: 1px solid rgba(0, 229, 255, 0.18);
  background: rgba(0, 229, 255, 0.04);
  color: var(--text);
  border-radius: 10px;
  font-size: 14px;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.search-box input:focus {
  outline: none;
  border-color: var(--cyan);
  box-shadow: 0 0 16px rgba(0, 229, 255, 0.15);
}

.search-box__filter-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 20px;
  border: 1px solid rgba(0, 229, 255, 0.2);
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(0, 229, 255, 0.1), rgba(47, 111, 232, 0.08));
  color: var(--cyan);
  cursor: pointer;
  font-size: 13px;
  font-weight: 800;
  white-space: nowrap;
  transition: all 0.25s;
}

.search-box__filter-btn:hover {
  border-color: var(--cyan);
  box-shadow: 0 0 16px rgba(0, 229, 255, 0.2);
}

.tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 12px;
}

.tab {
  flex: 0 0 auto;
  min-height: 34px;
  border: 1px solid rgba(0, 229, 255, 0.15);
  border-radius: 20px;
  padding: 0 16px;
  background: rgba(0, 229, 255, 0.04);
  color: rgba(200, 210, 225, 0.7);
  cursor: pointer;
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
  transition: all 0.25s;
}

.tab:hover {
  border-color: rgba(0, 229, 255, 0.4);
  color: var(--cyan);
  background: rgba(0, 229, 255, 0.08);
}

.tab.is-active {
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  border-color: transparent;
  color: #ffffff;
  box-shadow: 0 0 16px rgba(0, 229, 255, 0.25);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-top: 8px;
}

.product-card {
  position: relative;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid rgba(0, 180, 255, 0.2);
  background: var(--panel);
  border-radius: 8px;
  cursor: pointer;
  transition:
    transform 200ms ease,
    border-color 200ms ease,
    box-shadow 200ms ease;
  box-shadow: 0 0 0 0 rgba(0, 180, 255, 0);
}

.product-card:hover {
  transform: translateY(-5px);
  border-color: rgba(0, 180, 255, 0.5);
  box-shadow: 0 0 24px rgba(0, 140, 255, 0.18), 0 8px 32px rgba(0, 0, 0, 0.28);
}

.product-card:active,
.project-card:active,
.category-grid a:active {
  transform: translateY(-1px) scale(0.99);
}

/* Tag badge */
.product-card__tag {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 2;
  padding: 4px 10px;
  font-size: 10px;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: 4px;
}

.product-card__tag--new {
  background: var(--red);
  color: #020c1a;
  box-shadow: 0 0 10px rgba(0, 207, 255, 0.35);
}

.product-card__tag--stock {
  background: rgba(0, 60, 140, 0.7);
  border: 1px solid rgba(0, 150, 255, 0.4);
  color: var(--text);
}

.product-card__tag--premium {
  background: linear-gradient(110deg, #b8860b, #ffd700);
  color: #1a0e00;
}

/* Image area */
.product-card__media {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  aspect-ratio: 1 / 1;
  background:
    radial-gradient(ellipse 70% 65% at 50% 48%, rgba(0, 100, 220, 0.2), transparent 68%),
    linear-gradient(160deg, #0b1e38 0%, #060e1c 100%);
  overflow: hidden;
}

.product-card__img-wrap {
  display: grid;
  place-items: center;
  flex: 1;
  width: 100%;
}

/* "Engineered in Germany" strip */
.product-card__germany {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  background: rgba(2, 8, 20, 0.75);
  backdrop-filter: blur(4px);
  border-top: 1px solid rgba(255, 255, 255, 0.07);
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
}

/* Card body */
.product-card__body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 18px 18px 20px;
  border-top: 1px solid rgba(0, 180, 255, 0.08);
}

.product-card__series {
  display: block;
  margin-bottom: 6px;
  color: var(--red);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.product-card h3 {
  margin: 0 0 8px;
  font-family: "Inter", "Segoe UI", sans-serif;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: 0.02em;
}

:root[data-theme="light"] .product-card p,
:root[data-theme="light"] .hero p,
:root[data-theme="light"] .intro p {
  color: #394353;
}

.product-card p {
  flex: 1;
  margin: 0 0 16px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
  min-height: 46px;
}

.product-card__price-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 14px;
}

.product-card__price {
  font-size: 22px;
  font-weight: 900;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--cyan) 20%, var(--magenta) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 6px rgba(0, 229, 255, 0.2));
}

.stock {
  color: var(--green);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.stock::before {
  content: '';
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  margin-right: 5px;
  vertical-align: middle;
  animation: stockBlink 1.5s ease-in-out infinite;
  box-shadow: 0 0 6px rgba(0, 200, 122, 0.5);
}

@keyframes stockBlink {
  0%, 100% { opacity: 1; box-shadow: 0 0 6px rgba(0, 200, 122, 0.5); }
  50% { opacity: 0.3; box-shadow: 0 0 2px rgba(0, 200, 122, 0.2); }
}

.product-card__buy {
  width: 100%;
  min-height: 42px;
  border: 1px solid rgba(0, 229, 255, 0.25);
  border-radius: 8px;
  background: linear-gradient(135deg, rgba(0, 229, 255, 0.06), rgba(47, 111, 232, 0.04));
  color: var(--text);
  cursor: pointer;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition:
    border-color 0.3s ease,
    background 0.3s ease,
    color 0.3s ease,
    box-shadow 0.3s ease;
}

.product-card__buy:hover {
  border-color: var(--cyan);
  background: linear-gradient(135deg, rgba(0, 229, 255, 0.12), rgba(47, 111, 232, 0.08));
  color: var(--white);
  box-shadow:
    0 0 16px rgba(0, 229, 255, 0.2),
    0 0 40px rgba(47, 111, 232, 0.1);
}

.load-more {
  width: 100%;
  margin-top: 28px;
  border-color: rgba(0, 180, 255, 0.16);
  background: rgba(0, 30, 60, 0.3);
  color: var(--muted);
  letter-spacing: 0.12em;
}

.speaker-art {
  position: relative;
  width: min(68%, 250px);
  aspect-ratio: 1 / 1;
  border: 1px solid #363b44;
  background:
    radial-gradient(circle at 50% 55%, #232831 0 23%, #07080a 24% 34%, transparent 35%),
    radial-gradient(circle at 50% 25%, #343b46 0 9%, transparent 10%),
    linear-gradient(145deg, #2e333c, #0b0d10);
  box-shadow: inset 0 0 0 6px rgba(0, 0, 0, 0.28), 0 20px 50px rgba(0, 0, 0, 0.45), 0 0 40px rgba(0, 207, 255, 0.12);
  transition: transform 220ms ease;
}

.product-card:hover .speaker-art,
.detail__visual:hover .speaker-art {
  transform: scale(1.05);
}

.product-image {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  cursor: zoom-in;
  filter: drop-shadow(0 18px 34px rgba(0, 0, 0, 0.35));
  transition: transform 220ms ease;
}

.product-card:hover .product-image,
.detail__visual:hover .product-image {
  transform: scale(1.045);
}

/* ── Lightbox phóng to ảnh sản phẩm khi click ── */
.img-lightbox {
  position: fixed;
  inset: 0;
  z-index: 3000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 4vh 4vw;
  background: rgba(2, 8, 20, 0.92);
  backdrop-filter: blur(6px);
  cursor: zoom-out;
}
.img-lightbox.is-open {
  display: flex;
  animation: lbFade 0.25s ease;
}
.img-lightbox__img {
  max-width: 100%;
  max-height: 92vh;
  object-fit: contain;
  border-radius: 10px;
  box-shadow: 0 24px 90px rgba(0, 0, 0, 0.6);
  animation: lbZoom 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.img-lightbox__close {
  position: absolute;
  top: 18px;
  right: 22px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.25);
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease;
}
.img-lightbox__close:hover {
  background: rgba(255, 255, 255, 0.18);
  transform: scale(1.08);
}
@keyframes lbFade {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes lbZoom {
  from { opacity: 0; transform: scale(0.9); }
  to { opacity: 1; transform: scale(1); }
}

.speaker-art--polar {
  width: 42%;
  height: 78%;
  aspect-ratio: auto;
  border-radius: 2px;
  background:
    radial-gradient(circle at 50% 18%, #343b46 0 8%, transparent 9%),
    radial-gradient(circle at 50% 34%, #343b46 0 8%, transparent 9%),
    radial-gradient(circle at 50% 50%, #343b46 0 8%, transparent 9%),
    linear-gradient(180deg, #303640, #0d0f13);
}

.speaker-art--sub {
  border-radius: 2px;
  background:
    radial-gradient(circle at 50% 52%, #252a31 0 35%, #08090b 36% 49%, transparent 50%),
    linear-gradient(145deg, #2b3038, #0c0d10);
}

.speaker-art i {
  position: absolute;
  display: block;
  border-radius: 50%;
}

.speaker-art i:nth-child(1) {
  inset: 18%;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.speaker-art i:nth-child(2) {
  inset: 34%;
  background: radial-gradient(circle at 40% 36%, #5a606b, #111318 62%);
}

.speaker-art i:nth-child(3) {
  right: 9%;
  bottom: 9%;
  width: 8px;
  height: 8px;
  background: #454a52;
}

.detail {
  background: var(--bg);
}

.detail__grid {
  display: grid;
  grid-template-columns: minmax(320px, 0.8fr) minmax(0, 1fr);
  gap: 52px;
  align-items: center;
}

.detail__visual {
  position: relative;
  display: grid;
  min-height: 520px;
  place-items: center;
  background:
    radial-gradient(ellipse 75% 75% at 50% 50%, rgba(0, 90, 210, 0.18), transparent 65%),
    radial-gradient(ellipse 40% 40% at 50% 92%, rgba(0, 180, 255, 0.08), transparent),
    linear-gradient(145deg, #0d2040, #071020);
  border: 1px solid rgba(0, 180, 255, 0.18);
  border-radius: 4px;
  color: var(--text);
  transition:
    transform 180ms ease,
    box-shadow 180ms ease;
}

.detail__visual:hover {
  transform: translateY(-5px);
  box-shadow: 0 22px 46px rgba(0, 0, 0, 0.5), 0 0 40px rgba(0, 207, 255, 0.1);
}

.detail__visual span {
  position: absolute;
  top: 0;
  right: 0;
  padding: 12px 22px;
  background: var(--white);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.detail__visual .speaker-art {
  width: 72%;
}

.detail-price {
  display: block;
  margin: 20px 0 8px;
  font-size: clamp(42px, 6vw, 72px);
  line-height: 1;
}

.vat {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.spec-table {
  margin: 34px 0 0;
  border-top: 1px solid var(--line);
}

.spec-table div {
  display: grid;
  grid-template-columns: 160px 1fr;
  border-bottom: 1px solid var(--line);
  padding: 18px 0;
}

.spec-table dt {
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.spec-table dd {
  margin: 0;
  text-align: right;
  font-size: 19px;
}

.detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.detail-actions .button {
  margin-top: 0;
}

#news {
  position: relative;
  background:
    radial-gradient(ellipse 40% 45% at 12% 25%, rgba(0, 80, 220, 0.2), transparent),
    radial-gradient(ellipse 35% 40% at 88% 65%, rgba(0, 120, 255, 0.16), transparent),
    var(--bg);
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.news-grid article {
  border-bottom: 1px solid var(--line);
  padding-bottom: 18px;
  cursor: pointer;
  transition:
    transform 180ms ease,
    border-color 180ms ease;
}

.news-grid article:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 255, 255, 0.22);
}

.news-img {
  overflow: hidden;
}

.news-grid img {
  aspect-ratio: 1.5 / 1;
  object-fit: cover;
  filter: saturate(0.72);
  transition:
    transform 280ms ease,
    filter 280ms ease;
}

.news-grid article:hover .news-img img {
  transform: scale(1.035);
  filter: saturate(0.9);
}

.news-grid time {
  display: block;
  margin-top: 14px;
  color: var(--red);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.news-grid h3 {
  margin: 8px 0 0;
  font-size: 18px;
  line-height: 1.35;
}

.contact {
  position: relative;
  background:
    radial-gradient(ellipse 50% 45% at 50% 105%, rgba(0, 70, 200, 0.35), transparent),
    radial-gradient(ellipse 35% 35% at 92% 8%, rgba(0, 140, 255, 0.22), transparent),
    radial-gradient(ellipse 30% 30% at 12% 20%, rgba(0, 120, 255, 0.2), transparent),
    radial-gradient(ellipse 40% 30% at 5% 70%, rgba(0, 60, 180, 0.18), transparent),
    linear-gradient(170deg, #030f24 0%, #071c38 50%, #040e1e 80%, #020c1a 100%);
  border-top: 1px solid rgba(0, 180, 255, 0.14);
  padding: 88px 0 100px;
}

.contact::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 120px;
  background: linear-gradient(to bottom, transparent, rgba(3, 7, 16, 0.85));
  pointer-events: none;
}

.contact .section-label {
  color: var(--red);
}

.contact h2 {
  text-shadow: 0 0 40px rgba(0, 207, 255, 0.18);
}

/* ── Contact feature cards strip ── */
.contact-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 48px;
}

.contact-feature {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  padding: 20px 18px 20px 20px;
  border: 1px solid rgba(0, 180, 255, 0.16);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.03);
}

.contact-feature__left {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  flex: 1;
}

.contact-feature__icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(0, 207, 255, 0.2);
  border-radius: 8px;
  color: var(--red);
  background: rgba(0, 180, 255, 0.06);
  box-shadow: 0 2px 0 rgba(221, 0, 0, 0.18), 0 0 10px rgba(255, 206, 0, 0.04);
}

.contact-feature strong {
  display: block;
  color: var(--text);
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 5px;
}

.contact-feature span {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.6;
}


.contact__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(340px, 0.9fr);
  gap: 54px;
  align-items: start;
}

.contact__sub {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.65;
  max-width: 480px;
}

.contact ul {
  display: grid;
  gap: 20px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.contact li {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  transition: transform 0.22s;
}

.contact li:hover {
  transform: translateX(4px);
}

.contact-li__icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(0, 207, 255, 0.2);
  border-radius: 8px;
  background: rgba(0, 180, 255, 0.07);
  color: var(--red);
}

.contact li strong {
  display: block;
  color: var(--red);
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 4px;
  letter-spacing: 0.01em;
}

.contact li span {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.contact-form {
  position: relative;
  display: grid;
  gap: 20px;
  background:
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(0, 207, 255, 0.06), transparent),
    linear-gradient(160deg, rgba(7, 18, 38, 0.9) 0%, rgba(4, 10, 24, 0.95) 100%);
  border: 1px solid rgba(0, 207, 255, 0.14);
  border-top-color: rgba(0, 207, 255, 0.32);
  padding: 36px 32px 32px;
  border-radius: 3px;
  box-shadow:
    0 8px 60px rgba(0, 0, 0, 0.6),
    0 2px 0 rgba(0, 207, 255, 0.1) inset,
    0 0 80px rgba(0, 119, 255, 0.06);
  backdrop-filter: blur(12px);
  overflow: hidden;
}

.contact-form::before {
  content: '';
  position: absolute;
  top: 0;
  left: 10%;
  right: 10%;
  height: 2px;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(0, 207, 255, 0.7) 30%,
    rgba(0, 136, 255, 0.8) 50%,
    rgba(0, 207, 255, 0.7) 70%,
    transparent
  );
  border-radius: 0 0 2px 2px;
}

.contact-form label {
  display: grid;
  gap: 8px;
}

/* Form header */
.contact-form__header {
  margin-bottom: 4px;
}

.contact-form label span {
  color: rgba(170, 182, 197, 0.85);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* Field wrapper with icon */
.contact-form__field-wrap {
  position: relative;
}

.contact-form__field-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  color: rgba(90, 120, 160, 0.7);
  pointer-events: none;
}

.contact-form__field-icon--top {
  top: 18px;
  transform: none;
}

.contact-form__field-wrap--textarea .contact-form__field-icon {
  top: 16px;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid rgba(0, 207, 255, 0.16);
  background: rgba(2, 8, 20, 0.75);
  color: var(--white);
  padding: 0 18px 0 44px;
  border-radius: 6px;
  font-size: 15px;
  transition: border-color 0.22s, box-shadow 0.22s;
}

.contact-form input {
  min-height: 50px;
}

.contact-form textarea {
  min-height: 130px;
  padding-top: 15px;
  resize: vertical;
  line-height: 1.6;
}

.contact-form ::placeholder {
  color: rgba(90, 106, 130, 0.75);
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: rgba(0, 180, 255, 0.5);
  box-shadow: 0 0 0 3px rgba(0, 180, 255, 0.08);
}

.contact-form button {
  width: 100%;
  min-height: 52px;
  background: linear-gradient(135deg, #1a7fff 0%, #0055cc 55%, #003fa3 100%);
  color: #ffffff;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: 6px;
  box-shadow:
    0 0 24px rgba(0, 120, 255, 0.28),
    0 4px 16px rgba(0, 40, 120, 0.25),
    inset 0 1px 0 rgba(255, 255, 255, 0.15);
  transition: box-shadow 0.25s, transform 0.18s, background 0.25s;
  margin-top: 4px;
}

.contact-form button:hover {
  background: linear-gradient(135deg, #2e8fff 0%, #0066ee 55%, #004fc8 100%);
  box-shadow:
    0 0 40px rgba(0, 140, 255, 0.45),
    0 8px 24px rgba(0, 40, 120, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.contact-form button:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
}

.contact-form__btn--success {
  background: linear-gradient(135deg, #00c853 0%, #009624 100%) !important;
  box-shadow: 0 0 24px rgba(0, 200, 83, 0.35), 0 4px 16px rgba(0, 100, 40, 0.2) !important;
}

.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  vertical-align: middle;
  margin-right: 8px;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.checkout {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: rgba(0, 4, 14, 0.86);
  backdrop-filter: blur(14px);
}

.checkout.is-open {
  display: flex;
}

.checkout__panel {
  position: relative;
  font-family: "Inter", "Segoe UI", sans-serif;
  width: min(560px, 100%);
  max-height: min(760px, calc(100vh - 40px));
  overflow: auto;
  border: 1px solid rgba(0, 180, 255, 0.16);
  border-radius: 6px;
  background:
    radial-gradient(ellipse 80% 40% at 50% 0%, rgba(0, 170, 255, 0.07), transparent),
    #071424;
  padding: 28px;
  box-shadow: 0 40px 90px rgba(0, 0, 0, 0.75), 0 0 60px rgba(0, 160, 255, 0.07);
}

.checkout__panel h2 {
  max-width: 100%;
  margin-bottom: 22px;
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.12;
  letter-spacing: 0;
}

.checkout__close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 34px;
  height: 34px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--white);
  cursor: pointer;
  font-size: 24px;
  line-height: 1;
}

.checkout-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
}

.checkout-steps li {
  display: grid;
  gap: 8px;
  border: 1px solid var(--line);
  padding: 12px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
  line-height: 1.4;
}

.checkout-steps li.is-active {
  border-color: var(--red-2);
  color: var(--white);
}

.checkout-steps span {
  display: grid;
  width: 26px;
  height: 26px;
  place-items: center;
  border-radius: 50%;
  background: var(--red-2);
  color: var(--white);
}

.checkout-product {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border: 1px solid var(--line);
  margin-bottom: 16px;
  padding: 14px;
  background: var(--panel);
}

.checkout-product span {
  color: var(--green);
  font-weight: 900;
}

.checkout-form {
  display: grid;
  gap: 12px;
}

.checkout-form input,
.checkout-form select,
.checkout-form textarea {
  min-height: 46px;
  border: 1px solid rgba(0, 207, 255, 0.18);
  background: #06101e;
  color: var(--white);
  padding: 0 13px;
}

.checkout-form textarea {
  min-height: 96px;
  padding-top: 12px;
  resize: vertical;
}

.checkout-form button {
  min-height: 48px;
  border: 0;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--cyan) 0%, var(--purple) 50%, var(--magenta) 100%);
  color: #ffffff;
  cursor: pointer;
  font-weight: 800;
  font-size: 15px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  box-shadow:
    0 0 24px rgba(0, 229, 255, 0.25),
    0 0 60px rgba(47, 111, 232, 0.15);
  transition: box-shadow 0.3s, transform 0.2s;
}

.checkout-form button:hover {
  box-shadow:
    0 0 36px rgba(0, 229, 255, 0.4),
    0 0 80px rgba(47, 111, 232, 0.25);
  transform: translateY(-2px);
}

.checkout-note {
  margin: 16px 0 0;
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 12px 14px;
  background: rgba(255, 255, 255, 0.04);
  color: #cfd4dc;
  font-size: 13px;
  line-height: 1.6;
}

/* ═══════════════════════════════════════════
   PRODUCT DETAIL MODAL — Neon Dark Theme
   ═══════════════════════════════════════════ */
.product-detail {
  position: fixed;
  inset: 0;
  z-index: 95;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(2, 4, 12, 0.88);
  backdrop-filter: blur(24px) saturate(1.4);
}

.product-detail.is-open {
  display: flex;
}

.product-detail__panel {
  position: relative;
  display: grid;
  width: min(1320px, 100%);
  max-height: min(820px, calc(100vh - 48px));
  grid-template-columns: minmax(320px, 0.95fr) minmax(360px, 1.15fr) minmax(310px, 0.9fr);
  overflow: auto;
  border: 1px solid rgba(0, 229, 255, 0.15);
  border-radius: 16px;
  background:
    radial-gradient(ellipse 60% 50% at 20% 30%, rgba(47, 111, 232, 0.08), transparent),
    radial-gradient(ellipse 50% 40% at 80% 70%, rgba(0, 229, 255, 0.06), transparent),
    linear-gradient(160deg, #0a0e1a 0%, #080c18 50%, #060a14 100%);
  color: #e2e8f0;
  box-shadow:
    0 44px 100px rgba(0, 0, 0, 0.7),
    0 0 80px rgba(0, 229, 255, 0.06),
    inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.product-detail__close {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 2;
  width: 40px;
  height: 40px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  color: #a0aec0;
  cursor: pointer;
  font-size: 22px;
  line-height: 1;
  transition: all 0.25s;
  backdrop-filter: blur(8px);
}

.product-detail__close:hover {
  border-color: var(--cyan);
  background: rgba(0, 229, 255, 0.12);
  color: var(--cyan);
  box-shadow: 0 0 16px rgba(0, 229, 255, 0.2);
}

.product-detail__gallery {
  display: grid;
  gap: 18px;
  align-content: center;
  padding: 34px;
  border-radius: 16px 0 0 16px;
  background:
    radial-gradient(circle at 50% 50%, rgba(47, 111, 232, 0.06), transparent 70%),
    linear-gradient(160deg, #0c1020 0%, #080d1a 100%);
}

.product-detail__media {
  display: grid;
  min-height: 440px;
  place-items: center;
  border: 1px solid rgba(0, 229, 255, 0.1);
  border-radius: 12px;
  background:
    radial-gradient(circle at center, rgba(0, 229, 255, 0.04), transparent 54%),
    radial-gradient(ellipse 80% 60% at 50% 80%, rgba(47, 111, 232, 0.04), transparent),
    linear-gradient(145deg, #0d1222 0%, #0a0f1c 100%);
}

.product-detail__media .speaker-art {
  width: min(68%, 260px);
  filter: drop-shadow(0 0 30px rgba(0, 229, 255, 0.15));
}

.product-detail__media .product-image {
  width: 100%;
  height: 100%;
  max-height: 560px;
  object-fit: contain;
  cursor: zoom-in;
  filter: drop-shadow(0 8px 40px rgba(0, 0, 0, 0.4));
  transition: transform 0.4s ease;
}

.product-detail__media .product-image:hover {
  transform: scale(1.03);
}

.product-detail__thumbs {
  display: flex;
  gap: 10px;
  justify-content: center;
}

.product-detail__thumbs span {
  display: block;
  width: 72px;
  height: 58px;
  border: 1px solid rgba(0, 229, 255, 0.12);
  border-radius: 8px;
  background:
    radial-gradient(circle at center, rgba(0, 229, 255, 0.06) 0 18%, transparent 19%),
    linear-gradient(145deg, #0d1222, #0a0f1c);
  transition: border-color 0.25s;
}

.product-detail__thumbs span:hover {
  border-color: var(--cyan);
}

.product-detail__content,
.product-detail__buybox {
  font-family: "Inter", "Segoe UI", sans-serif;
}

.product-detail__content {
  padding: 34px 32px;
  border-left: 1px solid rgba(255, 255, 255, 0.04);
  border-right: 1px solid rgba(255, 255, 255, 0.04);
  background:
    radial-gradient(ellipse 70% 40% at 50% 0%, rgba(0, 229, 255, 0.03), transparent),
    linear-gradient(180deg, #0b1020, #090d1a);
}

.product-detail__crumb {
  margin-bottom: 18px;
  color: rgba(160, 174, 192, 0.7);
  font-size: 14px;
}

.product-detail__content h2 {
  margin-bottom: 10px;
  font-family: "Inter", "Segoe UI", sans-serif;
  font-weight: 700;
  letter-spacing: 0.01em;
  background: linear-gradient(135deg, #ffffff 30%, var(--cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: clamp(28px, 2.6vw, 40px);
  line-height: 1.12;
}

.product-detail__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 22px;
  color: rgba(160, 174, 192, 0.8);
  font-size: 14px;
}

.product-detail__meta span {
  padding: 3px 10px;
  border: 1px solid rgba(0, 229, 255, 0.12);
  border-radius: 20px;
  background: rgba(0, 229, 255, 0.04);
}

.product-detail__meta span.product-detail__stars,
:root[data-theme="light"] .product-detail__meta span.product-detail__stars {
  color: #ffc400 !important;
  letter-spacing: 2px;
}

.product-detail__content h3,
.product-detail__buybox h3 {
  margin: 0 0 16px;
  font-family: "Inter", "Segoe UI", sans-serif;
  font-weight: 600;
  letter-spacing: 0.02em;
  border-bottom: 1px solid rgba(0, 229, 255, 0.1);
  border-radius: 8px 8px 0 0;
  padding: 14px 16px;
  background: linear-gradient(135deg, rgba(0, 229, 255, 0.08), rgba(47, 111, 232, 0.06));
  color: #e2e8f0;
  font-size: 23px;
  line-height: 1.25;
}

.product-detail__price {
  display: block;
  margin: 0 0 26px;
  background: linear-gradient(135deg, var(--cyan), var(--magenta));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: clamp(30px, 3vw, 42px);
  line-height: 1;
  filter: drop-shadow(0 0 8px rgba(0, 229, 255, 0.3));
}

.product-detail__content > p:not(.section-label) {
  color: rgba(200, 210, 225, 0.85);
  font-size: 18px;
  line-height: 1.85;
}

.product-detail__specs {
  margin: 28px 0 0;
  border-top: 1px solid rgba(0, 229, 255, 0.1);
}

.product-detail__specs div {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  padding: 15px 0;
  transition: background 0.2s;
}

.product-detail__specs div:hover {
  background: rgba(0, 229, 255, 0.03);
}

.product-detail__specs dt {
  font-family: "Inter", sans-serif;
  color: #ffffff;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.product-detail__specs dd {
  margin: 0;
  color: var(--cyan);
  text-align: right;
  font-weight: 800;
}

.product-detail__buybox {
  padding: 34px 28px;
  border-radius: 0 16px 16px 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 100%, rgba(47, 111, 232, 0.06), transparent),
    linear-gradient(180deg, #0c1122, #090d1a);
  border-left: 1px solid rgba(255, 255, 255, 0.04);
}

.product-detail__buybox strong {
  display: block;
}

.product-detail__buybox label {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 22px 0 12px;
  color: #c8d2e1;
  font-size: 17px;
}

.product-detail__buybox input {
  width: 72px;
  min-height: 40px;
  border: 1px solid rgba(0, 229, 255, 0.2);
  border-radius: 6px;
  padding: 0 10px;
  background: rgba(0, 229, 255, 0.04);
  color: #e2e8f0;
  transition: border-color 0.25s, box-shadow 0.25s;
}

.product-detail__buybox input:focus {
  outline: none;
  border-color: var(--cyan);
  box-shadow: 0 0 12px rgba(0, 229, 255, 0.2);
}

.product-detail__buybox p {
  margin: 0 0 20px;
  color: #c8d2e1;
  font-size: 18px;
}

.product-detail__buybox p b,
.product-detail__buybox a {
  color: var(--cyan);
  text-shadow: 0 0 8px rgba(0, 229, 255, 0.3);
}

.product-detail__buy {
  display: grid;
  width: 100%;
  min-height: 64px;
  place-items: center;
  border: 0;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--cyan) 0%, var(--purple) 50%, var(--magenta) 100%);
  color: #ffffff;
  cursor: pointer;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 0.06em;
  line-height: 1.15;
  text-transform: uppercase;
  box-shadow:
    0 0 24px rgba(0, 229, 255, 0.25),
    0 0 60px rgba(47, 111, 232, 0.15);
  transition: box-shadow 0.3s, transform 0.2s;
}

.product-detail__buy:hover {
  box-shadow:
    0 0 36px rgba(0, 229, 255, 0.4),
    0 0 80px rgba(47, 111, 232, 0.25);
  transform: translateY(-2px);
}

.product-detail__buy small {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  font-weight: 600;
  text-transform: none;
  opacity: 0.85;
}

.product-detail__buybox ul {
  display: grid;
  gap: 10px;
  margin: 20px 0;
  padding: 0;
  color: rgba(200, 210, 225, 0.7);
  font-size: 16px;
  line-height: 1.55;
  list-style: none;
}

.product-detail__buybox ul li::before {
  content: '›';
  margin-right: 8px;
  color: var(--cyan);
  opacity: 0.6;
}

.callback-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
}

.callback-row input {
  width: 100%;
  border: 1px solid rgba(0, 229, 255, 0.15);
  border-radius: 6px;
  padding: 8px 12px;
  background: rgba(0, 229, 255, 0.04);
  color: #e2e8f0;
}

.callback-row input:focus {
  outline: none;
  border-color: var(--cyan);
  box-shadow: 0 0 12px rgba(0, 229, 255, 0.2);
}

.callback-row button {
  border: 0;
  border-radius: 6px;
  padding: 0 14px;
  background: linear-gradient(135deg, rgba(0, 229, 255, 0.2), rgba(47, 111, 232, 0.2));
  border: 1px solid rgba(0, 229, 255, 0.2);
  color: var(--cyan);
  cursor: pointer;
  font-weight: 800;
  text-transform: uppercase;
  transition: all 0.25s;
}

.callback-row button:hover {
  background: linear-gradient(135deg, rgba(0, 229, 255, 0.3), rgba(47, 111, 232, 0.3));
  box-shadow: 0 0 16px rgba(0, 229, 255, 0.2);
}

.footer {
  position: relative;
  padding: 78px 0 64px;
  background:
    radial-gradient(ellipse 50% 40% at 50% 95%, rgba(0, 70, 200, 0.25), transparent),
    radial-gradient(ellipse 40% 30% at 8% 15%, rgba(0, 120, 255, 0.18), transparent),
    radial-gradient(ellipse 30% 25% at 88% 40%, rgba(0, 140, 255, 0.14), transparent),
    linear-gradient(180deg, #030e20 0%, #020a16 50%, #010508 100%);
  color: var(--muted);
  overflow: hidden;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(0, 180, 255, 0.12) 15%,
    rgba(0, 212, 255, 0.68) 38%,
    rgba(0, 150, 255, 0.8) 50%,
    rgba(0, 212, 255, 0.68) 62%,
    rgba(0, 180, 255, 0.12) 85%,
    transparent 100%
  );
  box-shadow:
    0 0 24px rgba(0, 200, 255, 0.28),
    0 2px 40px rgba(0, 100, 255, 0.16);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 48px;
  align-items: start;
}

.footer__brand {
  padding-bottom: 0;
}

.footer__logo {
  width: 52px;
  height: 52px;
  object-fit: contain;
  border-radius: 8px;
  filter: invert(1) drop-shadow(0 0 10px rgba(0, 229, 255, 0.15));
  margin-bottom: 12px;
}

:root[data-theme="light"] .footer__logo {
  filter: none;
}

.footer__nav-col {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.footer__nav-label {
  margin: 0 0 12px;
  color: var(--red);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  opacity: 0.9;
}

/* Social icons */
.footer__social {
  display: flex;
  gap: 8px;
  margin-top: 18px;
}

.footer__social-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.04);
  transition: border-color 180ms, color 180ms, background 180ms;
}

.footer__social-icon:hover {
  border-color: rgba(0, 207, 255, 0.4);
  color: var(--red);
  background: rgba(0, 180, 255, 0.08);
}

.footer__brand strong {
  display: block;
  color: var(--white);
  font-size: 22px;
  font-weight: 900;
  letter-spacing: 0.05em;
  margin-bottom: 12px;
  text-shadow: 0 0 30px rgba(0, 207, 255, 0.2);
}

.footer__brand p {
  color: var(--soft);
  font-size: 14px;
  line-height: 1.7;
  max-width: 290px;
}

.footer strong {
  color: var(--white);
}

.footer nav {
  display: grid;
  gap: 13px;
  padding-top: 2px;
}

.footer nav[aria-label]::before {
  content: none;
}

.footer nav a {
  color: rgba(170, 182, 197, 0.75);
  font-size: 14px;
  line-height: 1.5;
  transition: color 0.2s, transform 0.2s, opacity 0.2s;
  display: inline-block;
}

.footer nav a:hover {
  color: var(--white);
  transform: translateX(5px);
  opacity: 1;
}

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 56px;
  padding-top: 22px;
  border-top: 1px solid rgba(0, 207, 255, 0.1);
  font-size: 13px;
  color: rgba(107, 122, 141, 0.7);
  letter-spacing: 0.01em;
}

.footer__tagline {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(0, 207, 255, 0.78);
  text-shadow: 0 0 14px rgba(0, 207, 255, 0.3);
}

.bottom-nav {
  display: none;
}

@media (max-width: 1024px) {
  .app-header {
    grid-template-columns: auto auto 1fr auto auto;
  }

  .desktop-nav {
    display: none;
  }

  .intro__grid,
  .detail__grid,
  .contact__grid {
    grid-template-columns: 1fr;
  }

  .contact-features {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .footer__brand {
    grid-column: 1 / -1;
  }

  /* Hero: shrink speaker on tablet */
  .hero__visual {
    width: 50%;
    height: 65%;
  }

  .hero__body {
    padding: 100px 0 44px;
  }

  .hero-feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .featured-projects,
  .projects-featured-grid,
  .showcase-grid,
  .solution-grid,
  .product-grid,
  .news-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .showcase-card--featured {
    grid-template-columns: 1fr;
  }

  .showcase-card--featured .showcase-card__info {
    padding: 20px 22px 24px;
    border-left: 0;
  }

  .projects-pills-row {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .project-strip {
    grid-template-columns: repeat(3, 1fr);
  }

  .category-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .catalog__title {
    align-items: stretch;
    flex-direction: column;
  }
}

@media (max-width: 640px) {
  body {
    padding-bottom: 64px;
  }

  .container {
    width: min(100% - 24px, 520px);
  }

  .app-header {
    min-height: 52px;
    padding: 0 12px;
  }

  .theme-toggle {
    display: none;
  }

  .logo {
    font-size: 15px;
  }

  .hero {
    min-height: auto;
  }

  .hero__image {
    background-position: 58% center;
  }

  /* Mobile: speaker smaller, copy takes priority */
  .hero__visual {
    width: 60%;
    height: 45%;
    right: -5%;
    opacity: 0.7;
  }

  .hero__body {
    padding: 80px 0 36px;
    align-items: flex-end;
  }

  .hero__copy {
    max-width: 100%;
  }

  .hero-feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero-feature {
    padding: 16px 14px;
    border-right: none;
    border-bottom: 1px solid rgba(0, 180, 255, 0.1);
    gap: 10px;
  }

  .hero-feature:nth-child(odd) {
    border-right: 1px solid rgba(0, 180, 255, 0.1);
  }

  .hero-feature:nth-last-child(-n+2) {
    border-bottom: none;
  }

  .hero-feature__icon {
    width: 42px;
    height: 42px;
  }

  h1 {
    font-size: 36px;
    line-height: 1;
  }

  h2 {
    font-size: 32px;
    line-height: 1.05;
  }

  .hero p,
  .intro p,
  .contact li span {
    font-size: 15px;
  }

  .intro,
  .solutions,
  .section,
  .catalog,
  .detail,
  .contact {
    padding: 52px 0;
  }

  .metric-grid,
  .featured-projects,
  .projects-featured-grid,
  .showcase-grid,
  .solution-grid,
  .product-grid,
  .news-grid,
  .project-strip,
  .footer__grid {
    grid-template-columns: 1fr;
  }

  .showcase {
    padding: 48px 0;
  }

  .showcase-card--featured {
    grid-template-columns: 1fr;
  }

  .showcase-card--featured .showcase-card__info {
    padding: 18px 18px 22px;
  }

  .showcase-stats {
    flex-direction: column;
    gap: 18px;
    padding: 22px 20px;
  }

  .showcase-stat__divider {
    width: 60px;
    height: 1px;
  }

  .project-featured-card__media {
    height: 200px;
  }

  .section-head {
    align-items: center;
  }

  .project-card,
  .project-card--large {
    min-height: 290px;
  }

  .project-card--hero {
    min-height: 220px;
  }

  .solutions {
    padding: 48px 0;
  }

  .solution-grid article {
    min-height: 150px;
    padding: 18px;
  }

  .solution-grid h3 {
    margin-top: 24px;
    font-size: 20px;
  }

  .project-strip--hero {
    grid-template-columns: 1fr;
  }

  #heroStateProjects .project-pill:nth-child(n + 5),
  #heroClubProjects .project-pill:nth-child(n + 4) {
    display: none;
  }

  .hero-project-groups {
    gap: 10px;
  }

  .category-grid a {
    min-height: 118px;
  }

  .search-box {
    grid-template-columns: 1fr 92px;
  }

  .product-card h3 {
    font-size: 22px;
  }

  .product-detail {
    padding: 12px;
  }

  .product-detail__panel {
    grid-template-columns: 1fr;
  }

  .product-detail__media {
    min-height: 300px;
  }

  .product-detail__gallery,
  .product-detail__content {
    padding: 24px 18px;
  }

  .product-detail__buybox {
    border-left: 0;
    border-top: 1px solid rgba(0, 229, 255, 0.08);
    border-radius: 0 0 16px 16px;
    padding: 24px 18px;
  }

  .product-detail__gallery {
    border-radius: 16px 16px 0 0;
  }

  .product-detail__content h2 {
    font-size: 30px;
  }

  .product-detail__specs div {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .product-detail__specs dd {
    text-align: left;
  }

  .callback-row {
    grid-template-columns: 1fr;
  }

  .detail__visual {
    min-height: 330px;
  }

  .detail-price {
    font-size: 42px;
  }

  .spec-table div {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .spec-table dd {
    text-align: left;
  }

  .footer {
    padding: 48px 0 90px;
  }

  .footer__bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
    margin-top: 36px;
  }

  .bottom-nav {
    position: fixed;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 60;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    border-top: 1px solid rgba(0, 207, 255, 0.12);
    background: #020c1a;
    padding-bottom: env(safe-area-inset-bottom);
  }

  .bottom-nav__item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    min-height: 62px;
    padding: 8px 4px;
    color: var(--muted);
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.02em;
    text-decoration: none;
    transition: color 0.18s;
  }

  .bottom-nav__icon {
    width: 22px;
    height: 22px;
    flex-shrink: 0;
  }

  .bottom-nav__item.is-active {
    color: var(--red);
  }

  .bottom-nav__item:hover,
  .bottom-nav__item:focus {
    color: var(--white);
  }
}


/* ══════════════════════════════════════
   SHOWCASE — Công trình đã thi công
   ══════════════════════════════════════ */
.showcase {
  position: relative;
  padding: 88px 0;
  background:
    radial-gradient(ellipse 45% 50% at 15% 30%, rgba(0, 80, 220, 0.28), transparent),
    radial-gradient(ellipse 40% 45% at 85% 70%, rgba(0, 120, 255, 0.22), transparent),
    radial-gradient(ellipse 50% 30% at 50% 100%, rgba(0, 100, 255, 0.12), transparent),
    radial-gradient(ellipse 80% 10% at 50% 0%, rgba(0, 50, 160, 0.2), transparent),
    radial-gradient(ellipse 80% 10% at 50% 100%, rgba(0, 20, 60, 0.3), transparent),
    linear-gradient(180deg, #010a18 0%, #061a30 30%, #071e38 50%, #061a30 70%, #010a18 100%);
}

.showcase__sub {
  max-width: 780px;
  margin-top: 10px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.6;
}

.showcase-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 8px;
}

.showcase-card--featured {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1.6fr 1fr;
}

.showcase-card--featured .showcase-card__video-wrap {
  aspect-ratio: 16 / 9;
}

.showcase-card--featured .showcase-card__info {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 32px 34px;
  border-left: 0;
  border-top: 0;
}

.showcase-card--featured .showcase-card__info h3 {
  font-size: 20px;
}

.showcase-card--featured .showcase-card__info p {
  font-size: 15px;
}

.showcase-card {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(0, 180, 255, 0.18);
  border-radius: 10px;
  background: var(--panel);
  transition: transform 220ms ease, box-shadow 220ms ease, border-color 220ms ease;
}

.showcase-card:hover {
  transform: translateY(-5px);
  border-color: rgba(0, 180, 255, 0.45);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5), 0 0 30px rgba(0, 180, 255, 0.1);
}

.showcase-card__video-wrap {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: #040a14;
  cursor: pointer;
}

.showcase-card__video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.65) saturate(0.7);
  transition: filter 400ms ease, transform 500ms ease;
}

.showcase-card:hover .showcase-card__video {
  filter: brightness(0.8) saturate(0.85);
  transform: scale(1.04);
}

.showcase-card__video.is-playing {
  filter: brightness(1) saturate(1);
}

.showcase-card:hover .showcase-card__video.is-playing {
  filter: brightness(1) saturate(1);
  transform: scale(1);
}

.showcase-card__overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(180deg, transparent 30%, rgba(2, 8, 22, 0.7) 100%);
  transition: opacity 300ms ease;
}

.showcase-card__overlay.is-hidden {
  opacity: 0;
  pointer-events: none;
}

/* Thanh điều khiển video: Mute + Fullscreen */
.showcase-card__controls {
  position: absolute;
  bottom: 12px;
  right: 12px;
  z-index: 4;
  display: flex;
  gap: 8px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.showcase-card__controls.is-visible {
  opacity: 1;
  pointer-events: auto;
}

.showcase-ctrl {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(6px);
  color: #ffffff;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.showcase-ctrl:hover {
  background: rgba(0, 0, 0, 0.75);
  border-color: rgba(255, 255, 255, 0.5);
}

.showcase-ctrl svg {
  width: 18px;
  height: 18px;
}

.showcase-card__play {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 68px;
  height: 68px;
  border: 0;
  border-radius: 50%;
  background: rgba(0, 120, 255, 0.25);
  backdrop-filter: blur(8px);
  cursor: pointer;
  transition: transform 200ms ease, background 200ms ease, box-shadow 200ms ease;
}

.showcase-card__play:hover {
  transform: scale(1.12);
  background: rgba(0, 120, 255, 0.45);
  box-shadow: 0 0 40px rgba(0, 140, 255, 0.4);
}

.showcase-card__badge {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  padding: 5px 12px;
  border: 1px solid rgba(0, 207, 255, 0.3);
  border-radius: 20px;
  background: rgba(0, 20, 50, 0.7);
  backdrop-filter: blur(6px);
  color: var(--red);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.showcase-card__info {
  padding: 18px 20px 22px;
  border-top: 1px solid rgba(0, 180, 255, 0.08);
}

.showcase-card__info h3 {
  margin: 0 0 6px;
  color: var(--text);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.3;
}

.showcase-card__info p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.showcase-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  margin-top: 36px;
  padding: 22px 28px;
  border: 1px solid rgba(0, 180, 255, 0.15);
  border-radius: 10px;
  background: rgba(0, 30, 70, 0.25);
}

.showcase-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  text-align: center;
}

.showcase-stat strong {
  font-family: "Inter", sans-serif;
  font-size: 28px;
  font-weight: 800;
  line-height: 1;
  background: linear-gradient(135deg, #00cffd 0%, #7de8fc 50%, #e8f8ff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.showcase-stat span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.showcase-stat__divider {
  width: 1px;
  height: 40px;
  background: rgba(0, 180, 255, 0.2);
}

/* ── Showcase: Light mode ── */
:root[data-theme="light"] .showcase {
  background:
    radial-gradient(ellipse 50% 50% at 20% 30%, rgba(0, 60, 160, 0.06), transparent),
    radial-gradient(ellipse 45% 45% at 80% 70%, rgba(0, 100, 200, 0.05), transparent),
    linear-gradient(180deg, #edf2f8 0%, #e2eaf4 50%, #edf2f8 100%);
}

:root[data-theme="light"] .showcase-card {
  background: #ffffff;
  border-color: rgba(0, 80, 160, 0.12);
}

:root[data-theme="light"] .showcase-card:hover {
  border-color: rgba(0, 80, 180, 0.3);
  box-shadow: 0 20px 50px rgba(0, 40, 100, 0.12);
}

:root[data-theme="light"] .showcase-card__info h3 {
  color: #1a2a40;
}

:root[data-theme="light"] .showcase-card__info p {
  color: #4a6080;
}

:root[data-theme="light"] .showcase-stats {
  background: rgba(255, 255, 255, 0.7);
  border-color: rgba(0, 80, 160, 0.1);
}

:root[data-theme="light"] .showcase-stat strong {
  background: linear-gradient(135deg, #0066ff 0%, #0055cc 100%);
  -webkit-background-clip: text;
  background-clip: text;
}

:root[data-theme="light"] .showcase-stat span {
  color: #4a6080;
}

:root[data-theme="light"] .showcase-stat__divider {
  background: rgba(0, 60, 140, 0.12);
}

:root[data-theme="light"] .showcase-card__badge {
  background: rgba(255, 255, 255, 0.85);
  border-color: rgba(0, 80, 180, 0.2);
  color: #0055cc;
}

/* HK AUDIO RESPONSIVE STABILITY PATCH */
html,
body {
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
}

* {
  min-width: 0;
}

img,
svg,
video {
  max-width: 100%;
}

button,
input,
textarea,
select {
  max-width: 100%;
}

.contact-form input:focus,
.contact-form textarea:focus,
.checkout-form input:focus,
.checkout-form select:focus,
.checkout-form textarea:focus,
.search-box input:focus {
  outline: none;
  border-color: var(--red);
  box-shadow: 0 0 0 3px rgba(0, 207, 255, 0.1);
}

.icon-button {
  cursor: pointer;
}

@media (min-width: 1025px) {
  .icon-button {
    display: none;
  }
  .app-header {
    grid-template-columns: auto 1fr auto auto;
  }
}

:root[data-theme="light"] .icon-button,
:root[data-theme="light"] .cart-link {
  color: var(--text);
}

:root[data-theme="light"] .icon-button span {
  background: var(--text);
}

:root[data-theme="light"] .product-card__buy {
  color: var(--text);
  border-color: rgba(0, 120, 200, 0.2);
}

:root[data-theme="light"] .button--dark {
  color: var(--text);
  background: rgba(0, 60, 120, 0.06);
}

:root[data-theme="light"] .button--dark {
  border-color: #c9d1dd;
}

@media (max-width: 1024px) {
  .app-header {
    position: sticky;
    overflow: visible;
  }

  .app-header.is-menu-open .desktop-nav {
    position: absolute;
    top: calc(100% + 8px);
    right: 12px;
    left: 12px;
    z-index: 90;
    display: grid;
    gap: 6px;
    border: 1px solid rgba(0, 207, 255, 0.18);
    border-radius: 12px;
    padding: 10px;
    background: rgba(4, 10, 22, 0.98);
    box-shadow: 0 22px 55px rgba(0, 0, 0, 0.6), 0 0 30px rgba(0, 207, 255, 0.06);
    backdrop-filter: blur(16px);
  }

  .app-header.is-menu-open .desktop-nav a {
    display: block;
    border-radius: 8px;
    padding: 14px 12px;
    color: var(--white);
    background: rgba(0, 207, 255, 0.05);
  }

  :root[data-theme="light"] .app-header.is-menu-open .desktop-nav {
    background: rgba(255, 255, 255, 0.98);
  }

  :root[data-theme="light"] .app-header.is-menu-open .desktop-nav a {
    color: var(--text);
    background: #eef1f5;
  }

  .product-detail__panel {
    grid-template-columns: 1fr;
  }

  .product-detail__buybox {
    border-left: 0;
    border-top: 1px solid rgba(0, 229, 255, 0.08);
  }

  /* Showcase cascade fix for tablet */
  .showcase-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .showcase-card--featured {
    grid-column: 1 / -1;
    grid-template-columns: 1fr;
  }

  .showcase-card--featured .showcase-card__info {
    padding: 20px 22px 24px;
    border-left: 0;
  }
}

@media (max-width: 640px) {
  body {
    padding-bottom: 64px;
  }

  .app-header {
    grid-template-columns: auto 1fr auto;
    gap: 10px;
    min-height: 56px;
    padding: 0 14px;
    overflow: visible;
  }

  .logo {
    justify-self: start;
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 15px;
  }

  .cart-link {
    justify-self: end;
  }

  .hero {
    width: 100%;
    min-height: auto;
    overflow: hidden;
  }

  .hero__image {
    background-position: 58% center;
  }

  .hero__body {
    padding: 72px 0 32px;
  }

  .hero__copy h1 {
    font-size: clamp(30px, 8vw, 40px);
    line-height: 1.08;
  }

  .hero-actions {
    display: grid;
    grid-template-columns: 1fr;
    width: 100%;
  }

  .hero-actions .button,
  .detail-actions .button {
    width: 100%;
    justify-content: center;
    padding: 0 14px;
    text-align: center;
    white-space: normal;
  }

  .section-head,
  .catalog__title,
  .section-head--compact {
    align-items: stretch;
    flex-direction: column;
  }

  .search-box {
    grid-template-columns: 1fr;
  }

  .product-card__bottom {
    align-items: start;
    flex-direction: column;
  }

  .product-card__price {
    font-size: 23px;
    overflow-wrap: anywhere;
  }

  .checkout {
    align-items: stretch;
    padding: 12px;
  }

  .checkout__panel,
  .product-detail__panel {
    width: 100%;
    max-width: 100%;
    max-height: calc(100vh - 24px);
  }

  .checkout-steps {
    grid-template-columns: 1fr;
  }

  .product-detail {
    align-items: stretch;
    padding: 12px;
  }

  .product-detail__media {
    min-height: 260px;
  }

  .product-detail__media .product-image {
    max-height: 260px;
  }

  /* Showcase cascade fix — base styles defined after first media query block */
  .showcase {
    padding: 48px 0;
  }

  .showcase-grid {
    grid-template-columns: 1fr;
  }

  .showcase-card--featured {
    grid-template-columns: 1fr;
  }

  .showcase-card--featured .showcase-card__info {
    padding: 18px 18px 22px;
    border-left: 0;
  }

  .showcase-stats {
    flex-direction: column;
    gap: 18px;
    padding: 22px 20px;
  }

  .showcase-stat__divider {
    width: 60px;
    height: 1px;
  }

  .showcase-card__play {
    width: 52px;
    height: 52px;
  }
}

/* === Scroll Reveal === */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(28px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInLeft {
  from { opacity: 0; transform: translateX(-32px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes fadeInRight {
  from { opacity: 0; transform: translateX(32px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes fadeInScale {
  from { opacity: 0; transform: scale(0.92); }
  to { opacity: 1; transform: scale(1); }
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
}

.reveal.is-visible {
  animation: fadeInUp 0.65s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.reveal--left { transform: translateX(-32px); }
.reveal--left.is-visible { animation-name: fadeInLeft; }

.reveal--right { transform: translateX(32px); }
.reveal--right.is-visible { animation-name: fadeInRight; }

.reveal--scale { transform: scale(0.92); }
.reveal--scale.is-visible { animation-name: fadeInScale; }

.reveal.is-visible:nth-child(2) { animation-delay: 0.1s; }
.reveal.is-visible:nth-child(3) { animation-delay: 0.2s; }
.reveal.is-visible:nth-child(4) { animation-delay: 0.3s; }
.reveal.is-visible:nth-child(5) { animation-delay: 0.4s; }
.reveal.is-visible:nth-child(6) { animation-delay: 0.5s; }

/* === Hero entrance animation === */
@keyframes heroSlideUp {
  from { opacity: 0; transform: translateY(50px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes heroFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes heroPulseGlow {
  0%, 100% { box-shadow: 0 0 25px rgba(0, 229, 255, 0.4), 0 0 60px rgba(47, 111, 232, 0.15), inset 0 1px 0 rgba(255,255,255,0.18); }
  50% { box-shadow: 0 0 50px rgba(0, 229, 255, 0.65), 0 0 100px rgba(47, 111, 232, 0.3), 0 0 140px rgba(0, 229, 255, 0.1), inset 0 1px 0 rgba(255,255,255,0.18); }
}

.hero__copy .kicker {
  animation: heroSlideUp 0.7s cubic-bezier(0.22, 1, 0.36, 1) 0.1s both;
}

.hero__copy h1 {
  animation: heroSlideUp 0.7s cubic-bezier(0.22, 1, 0.36, 1) 0.25s both;
}

.hero__accent-line {
  animation: heroSlideUp 0.5s cubic-bezier(0.22, 1, 0.36, 1) 0.4s both;
}

.hero__sub {
  animation: heroSlideUp 0.7s cubic-bezier(0.22, 1, 0.36, 1) 0.45s both;
}

.hero-actions {
  animation: heroSlideUp 0.7s cubic-bezier(0.22, 1, 0.36, 1) 0.6s both;
}

.hero__trust {
  animation: heroFadeIn 0.8s ease 0.8s both;
}

.hero__visual {
  animation: heroFadeIn 1.2s ease 0.3s both;
}

/* === CTA pulse glow === */
.hero .button--light {
  animation: heroPulseGlow 3s ease-in-out 1.5s infinite;
}

@keyframes ctaPulse {
  0%, 100% { box-shadow: 0 0 22px rgba(0, 190, 110, 0.3), inset 0 1px 0 rgba(255,255,255,0.14); }
  50% { box-shadow: 0 0 44px rgba(0, 200, 110, 0.5), 0 0 70px rgba(0, 160, 90, 0.2), inset 0 1px 0 rgba(255,255,255,0.14); }
}

.button--light:not(.hero .button--light) {
  animation: ctaPulse 3s ease-in-out infinite;
}

/* === 3D tilt card hover === */
.tilt-card {
  transform-style: preserve-3d;
  perspective: 800px;
}

.tilt-card > * {
  transform: translateZ(0);
}

/* === Animated counter shimmer === */
@keyframes counterShimmer {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}

.counter-animated {
  background: linear-gradient(90deg, #00cffd 0%, #7de8fc 25%, #ffffff 50%, #7de8fc 75%, #00cffd 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: counterShimmer 3s linear infinite;
}

/* === Section heading reveal === */
@keyframes headingReveal {
  from { opacity: 0; transform: translateY(20px); clip-path: inset(100% 0 0 0); }
  to { opacity: 1; transform: translateY(0); clip-path: inset(0 0 0 0); }
}

.section-head.is-visible h2,
.catalog__title.is-visible h2 {
  animation: headingReveal 0.7s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.section-head.is-visible .section-label,
.catalog__title.is-visible .section-label {
  animation: heroSlideUp 0.5s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

/* === Floating glow orb behind hero === */
@keyframes floatOrb {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -20px) scale(1.05); }
  66% { transform: translate(-20px, 15px) scale(0.95); }
}

.hero__image::after {
  content: '';
  position: absolute;
  top: 20%;
  left: 15%;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 120, 255, 0.15), transparent 70%);
  animation: floatOrb 8s ease-in-out infinite;
  pointer-events: none;
}

/* === Hero feature strip entrance === */
.hero-feature {
  opacity: 0;
  animation: fadeInUp 0.5s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.hero-feature:nth-child(1) { animation-delay: 0.9s; }
.hero-feature:nth-child(2) { animation-delay: 1.05s; }
.hero-feature:nth-child(3) { animation-delay: 1.2s; }
.hero-feature:nth-child(4) { animation-delay: 1.35s; }

/* === Smooth gradient line between sections === */
.showcase::before,
.solutions::before,
.catalog::before {
  content: '';
  display: block;
  width: 60%;
  height: 1px;
  margin: 0 auto 0;
  background: linear-gradient(90deg, transparent, rgba(0, 180, 255, 0.4), transparent);
  position: relative;
  top: -1px;
}

/* === Light mode: branded text trên nền sáng === */
:root[data-theme="light"] .kicker,
:root[data-theme="light"] .section-label {
  color: var(--red-2);
  text-shadow: none;
}

:root[data-theme="light"] .contact .section-label {
  color: var(--red);
  text-shadow: 0 0 14px rgba(0, 207, 255, 0.3);
}

:root[data-theme="light"] .metric-grid strong {
  background: linear-gradient(135deg, var(--red-2) 0%, #0055cc 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

:root[data-theme="light"] .logo {
  text-shadow: none;
}

:root[data-theme="light"] .hero__copy h1 {
  -webkit-text-fill-color: #0a0f1a;
  color: #0a0f1a;
}

:root[data-theme="light"] .hero__h1-accent {
  -webkit-text-fill-color: var(--red-2);
  color: var(--red-2);
}

/* ══════════════════════════════════════
   LIGHT MODE — full overrides
   ══════════════════════════════════════ */

/* ── Hero section ── */
:root[data-theme="light"] .hero__image {
  background:
    radial-gradient(ellipse 55% 70% at 28% 55%, rgba(0, 50, 160, 0.08), transparent 70%),
    radial-gradient(ellipse 40% 50% at 75% 35%, rgba(0, 30, 120, 0.06), transparent 60%),
    linear-gradient(170deg, #dce6f2 0%, #e8f0fa 40%, #edf2f8 100%);
  opacity: 1;
}

:root[data-theme="light"] .hero__sub {
  color: rgba(30, 50, 80, 0.75) !important;
}

:root[data-theme="light"] .hero__trust {
  color: rgba(40, 60, 90, 0.7);
  text-shadow: none;
}

:root[data-theme="light"] .hero__copy::before {
  display: none;
}

:root[data-theme="light"] .hero .button--light {
  background: linear-gradient(135deg, #0077ee 0%, #0055cc 100%);
  border-color: rgba(0, 80, 180, 0.2);
  box-shadow: 0 2px 12px rgba(0, 80, 180, 0.2);
}

:root[data-theme="light"] .hero .button--dark {
  border-color: rgba(0, 80, 180, 0.2);
  box-shadow: none;
}

:root[data-theme="light"] .hero__visual {
  filter: none;
}

/* ── Hero feature strip ── */
:root[data-theme="light"] .hero__features {
  background: rgba(255, 255, 255, 0.85);
  border-top: 1px solid rgba(0, 60, 140, 0.1);
  backdrop-filter: blur(10px);
}

:root[data-theme="light"] .hero-feature {
  border-right-color: rgba(0, 60, 140, 0.1);
}

:root[data-theme="light"] .hero-feature__icon {
  border-color: rgba(0, 80, 180, 0.18);
  background: linear-gradient(145deg, rgba(0, 80, 180, 0.08), rgba(0, 50, 140, 0.04));
  box-shadow: 0 2px 8px rgba(0, 60, 140, 0.08);
}

:root[data-theme="light"] .hero-feature strong {
  color: #1a2a40;
}

:root[data-theme="light"] .hero-feature span {
  color: #4a6080;
}

/* ── Contact section ── */
:root[data-theme="light"] .contact {
  background:
    radial-gradient(ellipse 75% 60% at 50% 120%, rgba(0, 70, 200, 0.06), transparent),
    radial-gradient(ellipse 45% 45% at 95% 4%, rgba(0, 100, 200, 0.04), transparent),
    linear-gradient(170deg, #e4ecf6 0%, #edf2f9 50%, #e8f0f8 100%);
  border-top-color: rgba(0, 80, 160, 0.1);
}

:root[data-theme="light"] .contact::after {
  background: linear-gradient(to bottom, transparent, rgba(230, 238, 248, 0.6));
}

:root[data-theme="light"] .contact .section-label {
  color: #0055cc;
  text-shadow: none;
}

:root[data-theme="light"] .contact h2 {
  color: #0d1a2e;
  text-shadow: none;
}

:root[data-theme="light"] .contact__sub {
  color: #4a5e78;
}

/* Contact feature cards */
:root[data-theme="light"] .contact-feature {
  border-color: rgba(0, 80, 160, 0.12);
  background: rgba(255, 255, 255, 0.7);
}

:root[data-theme="light"] .contact-feature__icon {
  border-color: rgba(0, 80, 180, 0.15);
  color: #0055cc;
  background: rgba(0, 80, 180, 0.07);
  box-shadow: 0 2px 6px rgba(0, 60, 140, 0.08);
}

:root[data-theme="light"] .contact-feature strong {
  color: #1a2a40;
}

:root[data-theme="light"] .contact-feature span {
  color: #4a6080;
}

/* Contact list items */
:root[data-theme="light"] .contact-li__icon {
  border-color: rgba(0, 80, 180, 0.15);
  background: rgba(0, 80, 180, 0.06);
  color: #0055cc;
}

:root[data-theme="light"] .contact li strong {
  color: #0055cc;
}

:root[data-theme="light"] .contact li span {
  color: #4a6080;
}

/* Contact form */
:root[data-theme="light"] .contact-form {
  background: #ffffff;
  border-color: rgba(0, 80, 160, 0.14);
  border-top-color: rgba(0, 80, 180, 0.25);
  box-shadow: 0 8px 40px rgba(0, 40, 100, 0.1), 0 1px 0 rgba(0, 80, 180, 0.08) inset;
}

:root[data-theme="light"] .contact-form::before {
  background: linear-gradient(90deg, transparent, rgba(0, 100, 220, 0.4) 30%, rgba(0, 80, 200, 0.5) 50%, rgba(0, 100, 220, 0.4) 70%, transparent);
}

:root[data-theme="light"] .contact-form label span {
  color: #3d5068;
}

:root[data-theme="light"] .contact-form__field-icon {
  color: rgba(60, 90, 130, 0.6);
}

:root[data-theme="light"] .contact-form input,
:root[data-theme="light"] .contact-form textarea {
  border-color: rgba(0, 80, 160, 0.16);
  background: #f5f8fc;
  color: #1a2a40;
}

:root[data-theme="light"] .contact-form ::placeholder {
  color: rgba(80, 100, 130, 0.55);
}

:root[data-theme="light"] .contact-form input:focus,
:root[data-theme="light"] .contact-form textarea:focus {
  border-color: rgba(0, 100, 220, 0.45);
  box-shadow: 0 0 0 3px rgba(0, 100, 220, 0.08);
}

:root[data-theme="light"] .contact-form button {
  background: linear-gradient(135deg, #0077ee 0%, #0055cc 55%, #003fa3 100%);
  box-shadow: 0 4px 16px rgba(0, 80, 180, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

/* ── Footer ── */
:root[data-theme="light"] .footer {
  background:
    radial-gradient(ellipse 80% 50% at 50% 110%, rgba(0, 60, 160, 0.04), transparent),
    linear-gradient(180deg, #e2ebf5 0%, #dae4f0 50%, #d4dfe9 100%);
  color: #4a6080;
}

:root[data-theme="light"] .footer::before {
  background: linear-gradient(90deg, transparent 0%, rgba(0, 80, 160, 0.08) 15%, rgba(0, 100, 200, 0.2) 50%, rgba(0, 80, 160, 0.08) 85%, transparent 100%);
  box-shadow: none;
}

:root[data-theme="light"] .footer__brand strong {
  color: #1a2a40;
  text-shadow: none;
}

:root[data-theme="light"] .footer__brand p {
  color: #4a6080;
}

:root[data-theme="light"] .footer__nav-label {
  color: #0055cc;
}

:root[data-theme="light"] .footer nav a {
  color: #3d5068;
}

:root[data-theme="light"] .footer nav a:hover {
  color: #0055cc;
}

:root[data-theme="light"] .footer__social-icon {
  color: #4a6080;
  border-color: rgba(0, 60, 140, 0.12);
  background: rgba(0, 60, 140, 0.04);
}

:root[data-theme="light"] .footer__social-icon:hover {
  color: #0055cc;
  border-color: rgba(0, 80, 180, 0.25);
  background: rgba(0, 80, 180, 0.08);
}

:root[data-theme="light"] .footer__bottom {
  border-top-color: rgba(0, 60, 140, 0.1);
  color: #6b7a8d;
}

:root[data-theme="light"] .footer__tagline {
  color: #4a6080;
}

/* ── Misc light overrides ── */
:root[data-theme="light"] .hero p:not(.kicker):not(.section-label),
:root[data-theme="light"] .intro p:not(.section-label) {
  color: #394353;
}

:root[data-theme="light"] .products-trust-strip {
  color: #4a6080;
  border-color: rgba(0, 60, 140, 0.1);
}

:root[data-theme="light"] .product-card__germany {
  color: #4a6080;
}

:root[data-theme="light"] .tab {
  color: #4a6080;
  border-color: rgba(0, 60, 140, 0.12);
}

:root[data-theme="light"] .tab.is-active {
  color: #0055cc;
  border-color: #0055cc;
  background: rgba(0, 80, 180, 0.06);
}

:root[data-theme="light"] .search-box input {
  background: #ffffff;
  border-color: rgba(0, 60, 140, 0.14);
  color: #1a2a40;
}

:root[data-theme="light"] .search-box__filter-btn {
  background: #ffffff;
  border-color: rgba(0, 60, 140, 0.14);
  color: #3d5068;
}

/* ═══════════════════════════════════════════
   RESPONSIVE — Tablet portrait (768–1024px)
   ═══════════════════════════════════════════ */
@media (min-width: 641px) and (max-width: 1024px) {
  .container {
    width: min(92%, 960px);
  }

  .bottom-nav { display: none; }
  body { padding-bottom: 0; }

  .hero {
    min-height: 85vh;
  }

  .hero__visual {
    width: 55%;
    height: 70%;
    top: 5%;
  }

  .hero__copy h1 {
    font-size: clamp(48px, 6vw, 64px);
  }

  .hero__sub {
    max-width: 400px;
  }

  .hero-feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero-feature {
    padding: 18px 16px;
    border-bottom: 1px solid rgba(0, 180, 255, 0.1);
    border-right: none;
  }
  .hero-feature:nth-child(odd) { border-right: 1px solid rgba(0, 180, 255, 0.1); }
  .hero-feature:nth-last-child(-n+2) { border-bottom: none; }

  .contact-features {
    grid-template-columns: repeat(3, 1fr);
  }

  .intro__grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }

  .contact__grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }

  .metric-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .showcase-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .showcase-card--featured {
    grid-column: 1 / -1;
    grid-template-columns: 1.4fr 1fr;
  }

  .showcase-card--featured .showcase-card__info {
    border-left: 1px solid rgba(0, 180, 255, 0.1);
    padding: 24px;
  }

  .solution-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .product-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .news-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer__grid {
    grid-template-columns: 1fr 1fr 1fr;
  }

  .footer__brand {
    grid-column: auto;
  }

  .showcase-stats {
    flex-direction: row;
  }

  .showcase-stat__divider {
    width: 1px;
    height: 48px;
  }

}

/* ═══════════════════════════════════════════
   RESPONSIVE — Small phones (≤375px)
   ═══════════════════════════════════════════ */
@media (max-width: 375px) {
  .container {
    width: calc(100% - 20px);
  }

  h1 {
    font-size: 30px;
  }

  h2 {
    font-size: 26px;
  }

  .hero__copy h1 {
    font-size: 32px !important;
  }

  .hero-feature {
    padding: 12px 10px;
    gap: 8px;
  }

  .hero-feature__icon {
    width: 36px;
    height: 36px;
  }

  .hero-feature strong {
    font-size: 12px;
  }

  .hero-feature span {
    font-size: 10px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .button {
    width: 100%;
    justify-content: center;
  }

  .kicker, .section-label {
    font-size: 11px;
  }

  .app-header {
    padding: 0 10px;
    gap: 12px;
  }

  .logo {
    font-size: 14px;
  }

  .showcase-card__info h3 {
    font-size: 16px;
  }

  .product-card h3 {
    font-size: 18px;
  }

  .contact-form button {
    font-size: 11px;
    min-height: 48px;
  }
}

/* ═══════════════════════════════════════════
   RESPONSIVE — Large desktop (≥1440px)
   ═══════════════════════════════════════════ */
@media (min-width: 1440px) {
  .container {
    width: min(1320px, calc(100% - 60px));
  }

  .hero__copy {
    max-width: 620px;
  }

  .hero__copy h1 {
    font-size: 78px !important;
  }

  .hero__sub {
    font-size: 16px !important;
    max-width: 540px;
  }

  .showcase-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
  }

  .showcase-card--featured {
    grid-template-columns: 1.6fr 1fr;
  }

  .product-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .intro__grid {
    gap: 80px;
  }

  .metric-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .solution-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .contact__grid {
    gap: 80px;
  }

  .footer__grid {
    grid-template-columns: 2fr 1fr 1fr;
  }
}

/* ═══════════════════════════════════════════
   RESPONSIVE — Ultra-wide (≥1920px)
   ═══════════════════════════════════════════ */
@media (min-width: 1920px) {
  .container {
    width: min(1520px, calc(100% - 80px));
  }

  .hero__copy h1 {
    font-size: 88px !important;
  }

  .hero-feature-grid {
    gap: 0;
  }

  .hero-feature {
    padding: 28px 32px;
  }
}

/* ═══════════════════════════════════════════
   PREMIUM VISUAL UPGRADE
   ═══════════════════════════════════════════ */

/* ── Particle canvas ── */
.hero__particles {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  width: 100%;
  height: 100%;
}

/* ── Scroll indicator ── */
.hero__scroll-hint {
  position: absolute;
  bottom: 100px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  animation: heroFadeIn 1s ease 2s both;
}

.hero__scroll-mouse {
  width: 24px;
  height: 38px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 12px;
  position: relative;
}

.hero__scroll-wheel {
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 3px;
  height: 8px;
  background: rgba(0, 200, 255, 0.8);
  border-radius: 3px;
  animation: scrollWheel 1.8s ease-in-out infinite;
}

@keyframes scrollWheel {
  0% { opacity: 1; transform: translateX(-50%) translateY(0); }
  100% { opacity: 0; transform: translateX(-50%) translateY(14px); }
}

.hero__scroll-hint span {
  font-size: 10px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.3);
  font-weight: 600;
}

/* ── Enhanced header glassmorphism ── */
.app-header {
  background: rgba(2, 8, 20, 0.75);
  backdrop-filter: blur(24px) saturate(1.4);
  border-bottom: 1px solid rgba(0, 180, 255, 0.12);
  box-shadow:
    0 1px 0 rgba(0, 180, 255, 0.08),
    0 4px 28px rgba(0, 0, 0, 0.5),
    inset 0 -1px 0 rgba(0, 140, 255, 0.06);
}

/* ── Hero heading gradient text — IMPRESSIVE UPGRADE ── */
.hero__copy h1 {
  font-family: "Sora", "Inter", sans-serif;
  font-weight: 700;
  letter-spacing: -0.025em;
  white-space: nowrap;
  -webkit-text-fill-color: transparent !important;
  background: linear-gradient(
    135deg,
    #ffffff 0%,
    #e0f0ff 25%,
    #00e5ff 50%,
    #2f6fe8 75%,
    #ffffff 100%
  ) !important;
  background-size: 300% auto;
  -webkit-background-clip: text !important;
  background-clip: text !important;
  animation: heroSlideUp 0.7s cubic-bezier(0.22, 1, 0.36, 1) 0.25s both,
             heroTitleShimmer 6s ease-in-out 2s infinite;
  filter: drop-shadow(0 0 40px rgba(0, 229, 255, 0.25))
          drop-shadow(0 0 80px rgba(47, 111, 232, 0.12));
}

@keyframes heroTitleShimmer {
  0%, 100% { background-position: 0% center; }
  50% { background-position: 300% center; }
}

.hero__h1-accent {
  background: linear-gradient(
    135deg,
    #5aa9ff 0%,
    #2f6fe8 45%,
    #1746c4 75%,
    #0b2f9c 100%
  ) !important;
  background-size: 300% auto;
  -webkit-background-clip: text !important;
  background-clip: text !important;
  -webkit-text-fill-color: transparent !important;
  animation: heroSlideUp 0.7s cubic-bezier(0.22, 1, 0.36, 1) 0.25s both,
             shimmerAccent 4s linear 2s infinite;
  filter: drop-shadow(0 0 50px rgba(47, 111, 232, 0.5))
          drop-shadow(0 0 100px rgba(23, 70, 196, 0.3));
}

@keyframes shimmerAccent {
  0% { background-position: 0% center; }
  100% { background-position: 300% center; }
}

/* ── Hero neon breathing glow behind title ── */
.hero__copy::before {
  content: '';
  position: absolute;
  top: -60px;
  left: -80px;
  width: 500px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(ellipse, rgba(0, 229, 255, 0.12) 0%, rgba(47, 111, 232, 0.06) 50%, transparent 70%);
  filter: blur(60px);
  animation: breatheNeonHero 4s ease-in-out infinite;
  pointer-events: none;
  z-index: -1;
}

@keyframes breatheNeonHero {
  0%, 100% { opacity: 0.6; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.15); }
}

/* ── Enhanced floating glow orbs ── */
.hero__image::after {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0, 229, 255, 0.18) 0%, rgba(47, 111, 232, 0.08) 40%, transparent 70%);
  filter: blur(50px);
}

.hero__image::before {
  content: '';
  position: absolute;
  bottom: 10%;
  right: 20%;
  width: 450px;
  height: 450px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(47, 111, 232, 0.15) 0%, rgba(0, 229, 255, 0.06) 40%, transparent 70%);
  animation: floatOrb 10s ease-in-out 2s infinite reverse;
  filter: blur(40px);
  pointer-events: none;
  z-index: 0;
}

/* ── Hero title soft glow (modern, no 3D extrude) ── */
.hero__copy h1 {
  text-shadow:
    0 4px 30px rgba(0, 0, 0, 0.35),
    0 0 60px rgba(0, 229, 255, 0.12),
    0 0 120px rgba(47, 111, 232, 0.06) !important;
}

/* ── Typewriter ── */
.hero__typewriter {
  min-height: 1.7em;
  border-right: none;
}

/* Red dot at the end */
.hero__typewriter-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #DD0000;
  margin-left: 4px;
  vertical-align: middle;
  animation: dotBlink 1.2s ease-in-out infinite;
  box-shadow: 0 0 8px rgba(221, 0, 0, 0.5);
}

@keyframes dotBlink {
  0%, 100% { opacity: 1; box-shadow: 0 0 8px rgba(221, 0, 0, 0.5); }
  50% { opacity: 0.2; box-shadow: 0 0 2px rgba(221, 0, 0, 0.2); }
}

/* ── Theater perspective overlay on hero background ── */
.hero__image {
  background:
    /* Spotlight from above — theater feel */
    radial-gradient(ellipse 50% 60% at 50% 0%, rgba(0, 229, 255, 0.08), transparent 60%),
    radial-gradient(ellipse 30% 40% at 30% 30%, rgba(47, 111, 232, 0.12), transparent 50%),
    radial-gradient(ellipse 35% 45% at 75% 25%, rgba(0, 100, 255, 0.15), transparent 50%),
    /* Depth gradient — dark bottom, lighter top */
    radial-gradient(ellipse 60% 30% at 50% 100%, rgba(0, 0, 0, 0.6), transparent 60%),
    /* Base gradient */
    linear-gradient(170deg, #010818 0%, #041830 30%, #020e24 60%, #010a16 100%);
}

/* ── Glassmorphism cards ── */
.metric-card,
.showcase-card,
.solution-card,
.contact-feature,
.news-grid article {
  background: rgba(5, 18, 35, 0.6) !important;
  backdrop-filter: blur(12px);
  border: 1px solid rgba(0, 229, 255, 0.1);
  border-radius: 12px;
  overflow: hidden;
  transition: border-color 0.4s ease, box-shadow 0.4s ease, transform 0.3s ease;
}

.metric-card:hover,
.showcase-card:hover,
.solution-card:hover,
.contact-feature:hover,
.news-grid article:hover {
  border-color: rgba(0, 229, 255, 0.35);
  box-shadow:
    0 0 24px rgba(0, 229, 255, 0.15),
    0 0 48px rgba(47, 111, 232, 0.08),
    0 8px 32px rgba(0, 0, 0, 0.3),
    inset 0 1px 0 rgba(0, 229, 255, 0.1);
  transform: translateY(-4px);
}

/* ── Card glow border on hover (animated) ── */
.product-card {
  position: relative;
  transition: border-color 0.4s ease, box-shadow 0.4s ease, transform 0.3s ease;
}

.product-card:hover {
  border-color: rgba(0, 180, 255, 0.25);
  box-shadow:
    0 0 24px rgba(0, 140, 255, 0.1),
    0 12px 40px rgba(0, 0, 0, 0.3);
}

/* ── Showcase featured card glow ── */
.showcase-card--featured {
  border-color: rgba(0, 180, 255, 0.15);
  box-shadow: 0 0 40px rgba(0, 120, 255, 0.08);
}

.showcase-card--featured:hover {
  border-color: rgba(0, 200, 255, 0.35);
  box-shadow:
    0 0 60px rgba(0, 140, 255, 0.18),
    0 12px 48px rgba(0, 0, 0, 0.3);
}

/* ── Enhanced stats strip glow ── */
.showcase-stats {
  background: rgba(5, 18, 35, 0.7);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(0, 160, 255, 0.12);
}

.showcase-stat strong {
  text-shadow: 0 0 30px rgba(0, 200, 255, 0.4);
}

/* ── Button ripple effect ── */
.button, .contact-form button {
  position: relative;
  overflow: hidden;
}

.button .ripple, .contact-form button .ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: scale(0);
  animation: rippleEffect 0.6s ease-out;
  pointer-events: none;
}

@keyframes rippleEffect {
  to { transform: scale(4); opacity: 0; }
}

/* ── Cursor glow (desktop only) ── */
.cursor-glow {
  position: fixed;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 140, 255, 0.06) 0%, transparent 70%);
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: opacity 0.3s ease;
  mix-blend-mode: screen;
}

/* ── Enhanced section transitions ── */
.showcase::before,
.intro::before,
.solutions::before,
.catalog::before,
.contact::before {
  content: '';
  display: block;
  width: 80%;
  max-width: 700px;
  height: 1px;
  margin: 0 auto;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(47, 111, 232, 0.3) 15%,
    rgba(0, 229, 255, 0.7) 40%,
    rgba(23, 70, 196, 0.5) 60%,
    rgba(0, 229, 255, 0.7) 75%,
    rgba(47, 111, 232, 0.3) 90%,
    transparent 100%
  );
  box-shadow:
    0 0 16px rgba(0, 229, 255, 0.2),
    0 0 40px rgba(47, 111, 232, 0.08);
  position: relative;
  top: -1px;
}

/* ── Hero feature strip enhanced (merged up) ── */

.hero-feature__icon {
  background: linear-gradient(145deg, rgba(0, 100, 220, 0.2), rgba(0, 60, 160, 0.08));
  border: 1px solid rgba(0, 160, 255, 0.25);
  box-shadow: 0 0 20px rgba(0, 120, 255, 0.15);
  transition: box-shadow 0.3s ease, border-color 0.3s ease;
}

.hero-feature:hover .hero-feature__icon {
  border-color: rgba(0, 200, 255, 0.5);
  box-shadow: 0 0 30px rgba(0, 160, 255, 0.3);
}

/* ── Contact form enhanced glow ── */
.contact-form {
  border: 1px solid rgba(0, 160, 255, 0.12);
  background: rgba(5, 18, 35, 0.7) !important;
  backdrop-filter: blur(12px);
  transition: border-color 0.4s ease, box-shadow 0.4s ease;
}

.contact-form:focus-within {
  border-color: rgba(0, 180, 255, 0.3);
  box-shadow: 0 0 40px rgba(0, 140, 255, 0.1);
}

/* ── Input field focus glow ── */
.contact-form__field-wrap {
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.contact-form__field-wrap:focus-within {
  border-color: rgba(0, 180, 255, 0.4) !important;
  box-shadow: 0 0 16px rgba(0, 140, 255, 0.12);
}

/* ── Depth vignette (merged into grain overlay) ── */

/* ── Depth overlays: vignette + ambient glow (non-fixed for perf) ── */
.page-depth,
.page-grain {
  display: none;
}

/* ── Scroll-hint hide on scroll ── */
.hero__scroll-hint.is-hidden {
  opacity: 0;
  transition: opacity 0.4s ease;
}

@media (max-width: 1024px) {
  .hero__scroll-hint { display: none; }
}

@media (max-width: 640px) {
  .cursor-glow { display: none; }
}

/* ── Light mode overrides for premium effects ── */
:root[data-theme="light"] .hero__particles { opacity: 0.3; }
:root[data-theme="light"] .cursor-glow { display: none; }
:root[data-theme="light"] .hero__copy h1 {
  background: linear-gradient(180deg, #0a0f1a 20%, #1a2a40 100%) !important;
  -webkit-background-clip: text !important;
  background-clip: text !important;
  -webkit-text-fill-color: transparent !important;
  filter: none;
}
:root[data-theme="light"] .hero__h1-accent {
  background: linear-gradient(135deg, #0066ff 0%, #0044cc 50%, #0066ff 100%) !important;
  background-size: 200% auto;
  -webkit-background-clip: text !important;
  background-clip: text !important;
  -webkit-text-fill-color: transparent !important;
  filter: none;
}
:root[data-theme="light"] .metric-card,
:root[data-theme="light"] .showcase-card,
:root[data-theme="light"] .solution-card,
:root[data-theme="light"] .contact-feature,
:root[data-theme="light"] .news-grid article {
  background: rgba(255, 255, 255, 0.7) !important;
  backdrop-filter: blur(12px);
  border-color: rgba(0, 80, 180, 0.1);
}
:root[data-theme="light"] .hero__scroll-mouse {
  border-color: rgba(0, 40, 80, 0.25);
}
:root[data-theme="light"] .hero__scroll-wheel {
  background: rgba(0, 100, 200, 0.6);
}
:root[data-theme="light"] .hero__scroll-hint span {
  color: rgba(0, 40, 80, 0.35);
}

/* ═══════════════════════════════════════════
   WOW REDESIGN — Karaoke Room Vibe
   Cyan + Purple Neon, Depth, Animations
   ═══════════════════════════════════════════ */

/* ── Animated ambient background ── */
@keyframes ambientShift {
  0%   { background-position: 0% 0%, 100% 100%, 50% 50%; }
  25%  { background-position: 100% 0%, 0% 50%, 30% 70%; }
  50%  { background-position: 100% 100%, 50% 0%, 80% 20%; }
  75%  { background-position: 0% 100%, 100% 50%, 20% 80%; }
  100% { background-position: 0% 0%, 100% 100%, 50% 50%; }
}

body {
  background:
    radial-gradient(ellipse 50% 40% at 20% 30%, rgba(47, 111, 232, 0.08), transparent 60%),
    radial-gradient(ellipse 50% 40% at 80% 70%, rgba(0, 200, 255, 0.08), transparent 60%),
    radial-gradient(ellipse 40% 30% at 50% 50%, rgba(23, 70, 196, 0.05), transparent 50%),
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(0, 40, 120, 0.18), transparent 60%),
    radial-gradient(ellipse 60% 40% at 0% 50%, rgba(80, 0, 160, 0.08), transparent 50%),
    radial-gradient(ellipse 60% 40% at 100% 60%, rgba(0, 50, 140, 0.1), transparent 50%),
    linear-gradient(180deg, #010810 0%, #020c1a 15%, #03112a 40%, #020e22 65%, #010a16 85%, #000610 100%);
  background-size: 200% 200%, 200% 200%, 200% 200%, 100% 100%, 100% 100%, 100% 100%, 100% 100%;
  animation: ambientShift 20s ease-in-out infinite;
  background-attachment: fixed;
}

/* ── Hero background depth with purple accents ── */
/* ── Hero accent "Vietnam" with cyan-purple gradient ── */
.hero__h1-accent {
  background: linear-gradient(135deg, #5aa9ff 0%, #2f6fe8 45%, #1746c4 75%, #0b2f9c 100%) !important;
  background-size: 300% auto;
  -webkit-background-clip: text !important;
  background-clip: text !important;
  -webkit-text-fill-color: transparent !important;
  animation: heroSlideUp 0.7s cubic-bezier(0.22, 1, 0.36, 1) 0.25s both, shimmerAccent 5s linear 2s infinite;
  filter: drop-shadow(0 0 50px rgba(47, 111, 232, 0.5)) drop-shadow(0 0 80px rgba(23, 70, 196, 0.35));
}

/* ── Title letter reveal animation ── */
@keyframes letterReveal {
  0% {
    opacity: 0;
    transform: translateY(0.55em);
    filter: blur(8px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
    filter: blur(0);
  }
}

@keyframes glowPulseIn {
  0% { text-shadow: 0 0 0 transparent; }
  50% { text-shadow: 0 0 60px rgba(0, 200, 255, 0.6), 0 0 120px rgba(47, 111, 232, 0.3); }
  100% { text-shadow: 0 0 30px rgba(0, 200, 255, 0.2), 0 0 60px rgba(47, 111, 232, 0.1); }
}

.hero__copy h1 .letter {
  display: inline-block;
  opacity: 0;
  animation: letterReveal 0.75s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  will-change: transform, filter, opacity;
  -webkit-text-fill-color: #ffffff;
  background: none !important;
}

.hero__copy h1 .hero__h1-accent .letter {
  -webkit-text-fill-color: transparent;
  background: linear-gradient(135deg, #5aa9ff 0%, #2f6fe8 45%, #1746c4 75%, #0b2f9c 100%) !important;
  background-size: 300% auto !important;
  -webkit-background-clip: text !important;
  background-clip: text !important;
}

.hero__copy h1 .letter-space {
  display: inline-block;
  width: 0.25em;
}

.hero__copy h1 {
  animation: none !important;
  perspective: 800px;
}

.hero__copy h1.letters-done {
  animation: glowPulseIn 1.5s ease 0.3s both !important;
}

/* ── Breathing neon glow on borders ── */
@keyframes breatheNeon {
  0%, 100% {
    border-color: rgba(0, 200, 255, 0.12);
    box-shadow: 0 0 0 rgba(0, 200, 255, 0);
  }
  50% {
    border-color: rgba(0, 200, 255, 0.3);
    box-shadow: 0 0 20px rgba(0, 200, 255, 0.08), 0 0 40px rgba(47, 111, 232, 0.04);
  }
}

@keyframes breathePurple {
  0%, 100% {
    border-color: rgba(47, 111, 232, 0.1);
    box-shadow: 0 0 0 rgba(47, 111, 232, 0);
  }
  50% {
    border-color: rgba(47, 111, 232, 0.3);
    box-shadow: 0 0 20px rgba(47, 111, 232, 0.1);
  }
}

.showcase-card,
.product-card,
.solution-card {
  animation: breatheNeon 4s ease-in-out infinite;
  animation-delay: calc(var(--i, 0) * 0.5s);
}

.metric-card {
  animation: breathePurple 5s ease-in-out infinite;
  animation-delay: calc(var(--i, 0) * 0.7s);
}

/* ── Sound wave rings from hero speaker ── */
@keyframes soundWave {
  0% {
    transform: translate(-50%, -50%) scale(0.5);
    opacity: 0.6;
  }
  100% {
    transform: translate(-50%, -50%) scale(2.5);
    opacity: 0;
  }
}

.hero__sound-wave {
  position: absolute;
  top: 45%;
  left: 40%;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  border: 2px solid rgba(0, 229, 255, 0.35);
  box-shadow: 0 0 30px rgba(0, 229, 255, 0.1), inset 0 0 30px rgba(0, 229, 255, 0.05);
  pointer-events: none;
  z-index: 0;
  animation: soundWave 3.5s ease-out infinite;
}

.hero__sound-wave:nth-child(2) {
  animation-delay: 0.7s;
  border-color: rgba(47, 111, 232, 0.3);
  box-shadow: 0 0 30px rgba(47, 111, 232, 0.1), inset 0 0 30px rgba(47, 111, 232, 0.05);
}

.hero__sound-wave:nth-child(3) {
  animation-delay: 1.4s;
  border-color: rgba(23, 70, 196, 0.25);
  box-shadow: 0 0 25px rgba(23, 70, 196, 0.08), inset 0 0 25px rgba(23, 70, 196, 0.04);
}

.hero__sound-wave:nth-child(4) {
  animation-delay: 2.1s;
  border-color: rgba(0, 229, 255, 0.2);
  box-shadow: 0 0 20px rgba(0, 229, 255, 0.06), inset 0 0 20px rgba(0, 229, 255, 0.03);
}

.hero__sound-wave--extra:nth-child(5) {
  animation-delay: 2.8s;
  border-color: rgba(47, 111, 232, 0.18);
  box-shadow: 0 0 15px rgba(47, 111, 232, 0.06);
}

.hero__sound-wave--extra:nth-child(6) {
  animation-delay: 3.5s;
  border-color: rgba(23, 70, 196, 0.12);
  box-shadow: 0 0 12px rgba(23, 70, 196, 0.04);
}

/* ── Enhanced floating orbs with purple ── */
.hero__image::after {
  background: radial-gradient(circle, rgba(47, 111, 232, 0.2) 0%, rgba(0, 80, 200, 0.08) 40%, transparent 70%) !important;
  filter: blur(50px);
}

.hero__image::before {
  background: radial-gradient(circle, rgba(0, 220, 255, 0.15) 0%, rgba(47, 111, 232, 0.08) 40%, transparent 70%) !important;
  filter: blur(40px);
}

/* ── Section gradient dividers with purple ── */
.showcase::before,
.intro::before,
.solutions::before,
.catalog::before,
.contact::before {
  background: linear-gradient(
    90deg,
    transparent,
    rgba(47, 111, 232, 0.3) 20%,
    rgba(0, 200, 255, 0.6) 50%,
    rgba(47, 111, 232, 0.3) 80%,
    transparent
  ) !important;
  box-shadow: 0 0 30px rgba(0, 200, 255, 0.2), 0 0 60px rgba(47, 111, 232, 0.1) !important;
  height: 2px !important;
}

/* ── Showcase section background with purple depth ── */
.showcase {
  background:
    radial-gradient(ellipse 45% 50% at 15% 30%, rgba(47, 111, 232, 0.18), transparent),
    radial-gradient(ellipse 40% 45% at 85% 70%, rgba(0, 120, 255, 0.22), transparent),
    radial-gradient(ellipse 30% 25% at 60% 90%, rgba(23, 70, 196, 0.1), transparent),
    radial-gradient(ellipse 80% 10% at 50% 0%, rgba(80, 0, 160, 0.15), transparent),
    linear-gradient(180deg, #010a18 0%, #0a0520 30%, #071e38 50%, #0a0520 70%, #010a18 100%) !important;
}

/* ── Intro section with purple accent ── */
.intro {
  background:
    radial-gradient(ellipse 45% 45% at 88% 35%, rgba(47, 111, 232, 0.2), transparent),
    radial-gradient(ellipse 35% 40% at 3% 65%, rgba(0, 80, 220, 0.22), transparent),
    radial-gradient(ellipse 50% 25% at 45% 0%, rgba(23, 70, 196, 0.08), transparent),
    radial-gradient(ellipse 80% 15% at 50% 100%, rgba(80, 0, 160, 0.1), transparent),
    var(--panel) !important;
}

/* ── Solutions section with purple ── */
.solutions {
  background:
    radial-gradient(ellipse 40% 50% at 8% 35%, rgba(0, 80, 220, 0.28), transparent),
    radial-gradient(ellipse 35% 35% at 88% 20%, rgba(47, 111, 232, 0.2), transparent),
    radial-gradient(ellipse 45% 40% at 55% 85%, rgba(0, 100, 255, 0.14), transparent),
    radial-gradient(ellipse 30% 20% at 70% 10%, rgba(23, 70, 196, 0.1), transparent),
    linear-gradient(180deg, #071828, #0a0520, var(--bg)) !important;
}

/* ── Contact section with purple ── */
.contact {
  background:
    radial-gradient(ellipse 50% 45% at 50% 105%, rgba(47, 111, 232, 0.2), transparent),
    radial-gradient(ellipse 35% 35% at 92% 8%, rgba(0, 140, 255, 0.22), transparent),
    radial-gradient(ellipse 30% 30% at 12% 20%, rgba(23, 70, 196, 0.12), transparent),
    radial-gradient(ellipse 40% 30% at 5% 70%, rgba(80, 0, 160, 0.1), transparent),
    linear-gradient(170deg, #030f24 0%, #0a0520 50%, #040e1e 80%, #020c1a 100%) !important;
}

/* ── Footer with purple accent ── */
.footer {
  background:
    radial-gradient(ellipse 50% 40% at 50% 95%, rgba(47, 111, 232, 0.15), transparent),
    radial-gradient(ellipse 40% 30% at 8% 15%, rgba(0, 120, 255, 0.18), transparent),
    radial-gradient(ellipse 30% 25% at 88% 40%, rgba(23, 70, 196, 0.1), transparent),
    linear-gradient(180deg, #030e20 0%, #0a0520 50%, #010508 100%) !important;
}

.footer::before {
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(47, 111, 232, 0.15) 15%,
    rgba(0, 212, 255, 0.68) 38%,
    rgba(47, 111, 232, 0.5) 50%,
    rgba(0, 212, 255, 0.68) 62%,
    rgba(47, 111, 232, 0.15) 85%,
    transparent 100%
  ) !important;
  box-shadow:
    0 0 24px rgba(47, 111, 232, 0.2),
    0 2px 40px rgba(0, 100, 255, 0.16) !important;
}

/* ── CTA button with cyan-purple glow ── */
.hero .button--light {
  background: linear-gradient(135deg, #00b8ff 0%, #7c3aed 50%, #2f6fe8 100%) !important;
  box-shadow: 0 0 30px rgba(47, 111, 232, 0.4), 0 0 60px rgba(0, 200, 255, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.2) !important;
  animation: ctaPulseDual 3s ease-in-out 1.5s infinite !important;
}

@keyframes ctaPulseDual {
  0%, 100% { box-shadow: 0 0 30px rgba(47, 111, 232, 0.3), 0 0 60px rgba(0, 200, 255, 0.15), inset 0 1px 0 rgba(255,255,255,0.2); }
  50% { box-shadow: 0 0 50px rgba(47, 111, 232, 0.5), 0 0 100px rgba(0, 200, 255, 0.3), 0 0 150px rgba(23, 70, 196, 0.15), inset 0 1px 0 rgba(255,255,255,0.2); }
}

/* ── Hero feature icon enhanced glow ── */
.hero-feature__icon {
  background: linear-gradient(145deg, rgba(47, 111, 232, 0.15), rgba(0, 100, 220, 0.15)) !important;
  border: 1px solid rgba(47, 111, 232, 0.25) !important;
  box-shadow: 0 0 20px rgba(47, 111, 232, 0.12) !important;
}

.hero-feature:hover .hero-feature__icon {
  border-color: rgba(0, 200, 255, 0.5) !important;
  box-shadow: 0 0 30px rgba(0, 200, 255, 0.2), 0 0 50px rgba(47, 111, 232, 0.15) !important;
}

/* ── Stats gradient text with purple ── */
.metric-grid strong,
.showcase-stat strong {
  background: linear-gradient(135deg, #00e5ff 0%, #2f6fe8 50%, #e8f8ff 100%) !important;
  -webkit-background-clip: text !important;
  -webkit-text-fill-color: transparent !important;
  background-clip: text !important;
  filter: drop-shadow(0 0 12px rgba(0, 229, 255, 0.35));
}

/* ── Enhanced counter shimmer with purple ── */
.counter-animated {
  background: linear-gradient(90deg, #00e5ff 0%, #2f6fe8 25%, #ffffff 50%, #2f6fe8 75%, #00e5ff 100%) !important;
  background-size: 200% auto !important;
  -webkit-background-clip: text !important;
  background-clip: text !important;
  -webkit-text-fill-color: transparent !important;
}

/* ── Product card hover glow with purple ── */
.product-card:hover {
  border-color: rgba(47, 111, 232, 0.35) !important;
  box-shadow:
    0 0 30px rgba(47, 111, 232, 0.12),
    0 0 60px rgba(0, 200, 255, 0.08),
    0 12px 40px rgba(0, 0, 0, 0.3) !important;
}

/* ── Showcase card hover with purple ── */
.showcase-card:hover {
  border-color: rgba(47, 111, 232, 0.35) !important;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5), 0 0 40px rgba(47, 111, 232, 0.12), 0 0 60px rgba(0, 200, 255, 0.06) !important;
}

/* ── Play button glow ── */
.showcase-card__play {
  background: rgba(47, 111, 232, 0.3) !important;
}

.showcase-card__play:hover {
  background: rgba(47, 111, 232, 0.5) !important;
  box-shadow: 0 0 50px rgba(47, 111, 232, 0.4), 0 0 80px rgba(0, 200, 255, 0.2) !important;
}

/* ── Contact form glow line with purple ── */
.contact-form::before {
  background: linear-gradient(
    90deg,
    transparent,
    rgba(47, 111, 232, 0.5) 20%,
    rgba(0, 207, 255, 0.7) 40%,
    rgba(23, 70, 196, 0.6) 60%,
    rgba(0, 207, 255, 0.7) 80%,
    transparent
  ) !important;
  height: 2px !important;
}

/* ── Enhanced cursor glow with purple ── */
.cursor-glow {
  background: radial-gradient(circle, rgba(47, 111, 232, 0.05) 0%, rgba(0, 140, 255, 0.04) 30%, transparent 70%) !important;
  width: 400px !important;
  height: 400px !important;
}

/* ── Accent line with neon colors ── */
.hero__accent-line {
  background: linear-gradient(90deg, #00e5ff 0%, #2f6fe8 50%, #1746c4 100%) !important;
  box-shadow: 0 0 12px rgba(47, 111, 232, 0.4);
  height: 3px;
}

/* ── Kicker / section label with purple accent ── */
.kicker,
.section-label {
  text-shadow: 0 0 20px rgba(47, 111, 232, 0.3) !important;
}

/* ── Scroll reveal: blur → sharp ── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  filter: blur(6px);
}

.reveal.is-visible {
  animation: fadeInUpBlur 0.7s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

@keyframes fadeInUpBlur {
  from { opacity: 0; transform: translateY(28px); filter: blur(6px); }
  to { opacity: 1; transform: translateY(0); filter: blur(0); }
}

@keyframes fadeInLeftBlur {
  from { opacity: 0; transform: translateX(-32px); filter: blur(6px); }
  to { opacity: 1; transform: translateX(0); filter: blur(0); }
}

@keyframes fadeInRightBlur {
  from { opacity: 0; transform: translateX(32px); filter: blur(6px); }
  to { opacity: 1; transform: translateX(0); filter: blur(0); }
}

@keyframes fadeInScaleBlur {
  from { opacity: 0; transform: scale(0.92); filter: blur(4px); }
  to { opacity: 1; transform: scale(1); filter: blur(0); }
}

.reveal--left.is-visible { animation-name: fadeInLeftBlur; }
.reveal--right.is-visible { animation-name: fadeInRightBlur; }
.reveal--scale.is-visible { animation-name: fadeInScaleBlur; }

/* ── Showcase badges with purple ── */
.showcase-card__badge {
  border-color: rgba(47, 111, 232, 0.35) !important;
  background: rgba(20, 0, 50, 0.7) !important;
  text-shadow: 0 0 8px rgba(47, 111, 232, 0.4);
}

/* ── Product tag badges neon ── */
.product-card__tag--new {
  background: linear-gradient(135deg, var(--cyan), var(--purple)) !important;
  color: #fff !important;
  box-shadow: 0 0 14px rgba(47, 111, 232, 0.4) !important;
}

.product-card__tag--premium {
  background: linear-gradient(110deg, #2f6fe8, #1746c4) !important;
  color: #fff !important;
  box-shadow: 0 0 14px rgba(23, 70, 196, 0.4) !important;
}

/* ── Tab active state with neon ── */
.tab.is-active {
  background: linear-gradient(135deg, var(--cyan), var(--purple)) !important;
  border-color: transparent !important;
  color: #fff !important;
  box-shadow: 0 0 16px rgba(47, 111, 232, 0.3);
}

/* ── Header glow line ── */
.app-header {
  border-bottom: 1px solid rgba(47, 111, 232, 0.1) !important;
  box-shadow:
    0 1px 0 rgba(0, 200, 255, 0.06),
    0 1px 0 rgba(47, 111, 232, 0.06),
    0 4px 28px rgba(0, 0, 0, 0.5) !important;
}

/* ── Logo neon glow (handled by logoNeonBreathe keyframes above) ── */

/* ── Contact form button — cyan neon ── */
.contact-form button {
  background: linear-gradient(135deg, #00c8ff 0%, #0088ff 55%, #0060dd 100%) !important;
  box-shadow:
    0 0 20px rgba(0, 180, 255, 0.25),
    0 4px 16px rgba(0, 100, 220, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.15) !important;
}

.contact-form button:hover {
  background: linear-gradient(135deg, #00d4ff 0%, #9333ea 55%, #c026d3 100%) !important;
  box-shadow:
    0 0 40px rgba(47, 111, 232, 0.45),
    0 8px 24px rgba(0, 140, 255, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.2) !important;
}

/* ═══════════════════════════════════════════
   LIGHT MODE — Full Neon Override
   Fix visibility, contrast, branding colors
   ═══════════════════════════════════════════ */

/* ── Body: kill dark ambient gradients ── */
:root[data-theme="light"] body {
  background:
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(0, 100, 220, 0.06), transparent 60%),
    radial-gradient(ellipse 60% 40% at 0% 50%, rgba(0, 60, 160, 0.04), transparent 50%),
    linear-gradient(180deg, #edf2f8 0%, #e4ecf6 50%, #dde6f2 100%) !important;
  animation: none !important;
  color: #1a2a40 !important;
}

/* ── Section backgrounds ── */
:root[data-theme="light"] .showcase,
:root[data-theme="light"] .solutions {
  background:
    radial-gradient(ellipse 60% 40% at 50% 0%, rgba(0, 80, 180, 0.04), transparent),
    linear-gradient(180deg, #e8f0f9 0%, #edf2f8 100%) !important;
}

:root[data-theme="light"] .catalog,
:root[data-theme="light"] .intro {
  background:
    radial-gradient(ellipse 60% 40% at 50% 100%, rgba(0, 80, 180, 0.04), transparent),
    linear-gradient(180deg, #edf2f8 0%, #e8f0f9 100%) !important;
}

/* ── Section dividers: subtle blue ── */
:root[data-theme="light"] .showcase::before,
:root[data-theme="light"] .intro::before,
:root[data-theme="light"] .solutions::before,
:root[data-theme="light"] .catalog::before,
:root[data-theme="light"] .contact::before {
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(0, 100, 200, 0.15) 20%,
    rgba(0, 80, 180, 0.35) 50%,
    rgba(0, 100, 200, 0.15) 80%,
    transparent 100%
  ) !important;
  box-shadow: none !important;
}

/* ── Headings: dark, high contrast ── */
:root[data-theme="light"] h2,
:root[data-theme="light"] h3 {
  color: #0d1a2e !important;
  -webkit-text-fill-color: #0d1a2e !important;
  background: none !important;
  filter: none !important;
}

/* ── Section labels/kickers ── */
:root[data-theme="light"] .kicker,
:root[data-theme="light"] .section-label {
  color: #0055cc !important;
  text-shadow: none !important;
}

/* ── Body text readable ── */
/* Đoạn văn trên nền sáng → xám đậm dễ đọc */
:root[data-theme="light"] p,
:root[data-theme="light"] .product-card p,
:root[data-theme="light"] .showcase-card__info p {
  color: #3d5068 !important;
}

/* Thẻ Solutions dùng ảnh nền tối ở cả 2 chế độ → chữ phải sáng */
:root[data-theme="light"] .solution-card h3 {
  color: #ffffff !important;
  -webkit-text-fill-color: #ffffff !important;
}

:root[data-theme="light"] .solution-card p {
  color: rgba(236, 244, 251, 0.92) !important;
}

/* ── Product card price: blue gradient for readability ── */
:root[data-theme="light"] .product-card__price {
  background: linear-gradient(135deg, #0055cc 20%, #0077ee 100%) !important;
  -webkit-background-clip: text !important;
  -webkit-text-fill-color: transparent !important;
  background-clip: text !important;
  filter: none !important;
}

/* ── Product card button ── */
:root[data-theme="light"] .product-card__buy {
  border-color: rgba(0, 80, 180, 0.2) !important;
  background: rgba(0, 80, 180, 0.04) !important;
  color: #0d1a2e !important;
}

:root[data-theme="light"] .product-card__buy:hover {
  border-color: #0055cc !important;
  background: rgba(0, 80, 180, 0.08) !important;
  color: #0055cc !important;
  box-shadow: 0 4px 16px rgba(0, 80, 180, 0.12) !important;
}

/* ── Product card hover ── */
:root[data-theme="light"] .product-card:hover {
  border-color: rgba(0, 80, 180, 0.2) !important;
  box-shadow:
    0 8px 32px rgba(0, 60, 140, 0.12),
    0 2px 8px rgba(0, 40, 100, 0.06) !important;
}

/* ── Tabs ── */
:root[data-theme="light"] .tab {
  border-color: rgba(0, 60, 140, 0.15) !important;
  background: rgba(0, 60, 140, 0.03) !important;
  color: #3d5068 !important;
}

:root[data-theme="light"] .tab:hover {
  border-color: rgba(0, 80, 180, 0.3) !important;
  color: #0055cc !important;
  background: rgba(0, 80, 180, 0.06) !important;
}

:root[data-theme="light"] .tab.is-active {
  background: linear-gradient(135deg, #0066ff, #0044cc) !important;
  border-color: transparent !important;
  color: #ffffff !important;
  box-shadow: 0 4px 12px rgba(0, 80, 180, 0.2) !important;
}

/* ── Search box ── */
:root[data-theme="light"] .search-box input {
  border-color: rgba(0, 60, 140, 0.15) !important;
  background: #ffffff !important;
  color: #1a2a40 !important;
}

:root[data-theme="light"] .search-box input:focus {
  border-color: #0066ff !important;
  box-shadow: 0 0 0 3px rgba(0, 100, 220, 0.1) !important;
}

:root[data-theme="light"] .search-box__filter-btn {
  border-color: rgba(0, 60, 140, 0.15) !important;
  background: #ffffff !important;
  color: #3d5068 !important;
}

:root[data-theme="light"] .search-box__filter-btn:hover {
  border-color: #0066ff !important;
  color: #0055cc !important;
  box-shadow: 0 2px 8px rgba(0, 80, 180, 0.1) !important;
}

/* ── Stats bar ── */
:root[data-theme="light"] .showcase-stats {
  background: rgba(255, 255, 255, 0.8) !important;
  border-color: rgba(0, 80, 180, 0.12) !important;
  backdrop-filter: blur(12px) !important;
}

:root[data-theme="light"] .showcase-stat strong,
:root[data-theme="light"] .metric-grid strong {
  background: linear-gradient(135deg, #0055cc 0%, #0077ee 100%) !important;
  -webkit-background-clip: text !important;
  -webkit-text-fill-color: transparent !important;
  background-clip: text !important;
  filter: none !important;
}

:root[data-theme="light"] .showcase-stat span {
  color: #3d5068 !important;
}

:root[data-theme="light"] .showcase-stat__divider {
  background: rgba(0, 60, 140, 0.12) !important;
}

/* ── Showcase cards ── */
:root[data-theme="light"] .showcase-card {
  border-color: rgba(0, 80, 180, 0.1) !important;
}

:root[data-theme="light"] .showcase-card:hover {
  border-color: rgba(0, 80, 180, 0.25) !important;
  box-shadow: 0 12px 40px rgba(0, 60, 140, 0.12) !important;
}

:root[data-theme="light"] .showcase-card__badge {
  background: rgba(0, 80, 180, 0.85) !important;
  border-color: rgba(0, 80, 180, 0.3) !important;
  color: #ffffff !important;
  text-shadow: none !important;
}

/* ── Play button ── */
:root[data-theme="light"] .showcase-card__play {
  background: rgba(0, 80, 180, 0.6) !important;
}

:root[data-theme="light"] .showcase-card__play:hover {
  background: rgba(0, 80, 180, 0.8) !important;
  box-shadow: 0 4px 20px rgba(0, 80, 180, 0.3) !important;
}

/* ── News cards ── */
:root[data-theme="light"] .news-grid article {
  border-color: rgba(0, 80, 180, 0.1) !important;
}

:root[data-theme="light"] .news-grid article:hover {
  border-color: rgba(0, 80, 180, 0.2) !important;
  box-shadow: 0 8px 28px rgba(0, 60, 140, 0.1) !important;
  transform: translateY(-4px);
}

:root[data-theme="light"] .news-grid time {
  color: #0055cc !important;
}

:root[data-theme="light"] .news-grid h3 {
  color: #0d1a2e !important;
  -webkit-text-fill-color: #0d1a2e !important;
}

/* ── Cards general hover ── */
:root[data-theme="light"] .metric-card:hover,
:root[data-theme="light"] .solution-card:hover,
:root[data-theme="light"] .contact-feature:hover {
  border-color: rgba(0, 80, 180, 0.2) !important;
  box-shadow: 0 8px 28px rgba(0, 60, 140, 0.1) !important;
  transform: translateY(-4px);
}

/* ── Header ── */
:root[data-theme="light"] .app-header {
  border-bottom: 1px solid rgba(0, 60, 140, 0.1) !important;
  box-shadow: 0 2px 12px rgba(0, 40, 100, 0.06) !important;
}

:root[data-theme="light"] .logo {
  color: #0d1a2e !important;
}

/* light logo__svg removed — now using .logo__img */

/* ── Hero features ── */
:root[data-theme="light"] .hero__features {
  border-top-color: rgba(0, 60, 140, 0.1) !important;
}

/* ── Product detail modal light ── */
:root[data-theme="light"] .product-detail__panel {
  background: #ffffff !important;
  border-color: rgba(0, 60, 140, 0.12) !important;
  color: #1a2a40 !important;
}

:root[data-theme="light"] .product-detail__gallery {
  background: #f5f8fc !important;
}

:root[data-theme="light"] .product-detail__media {
  border-color: rgba(0, 60, 140, 0.1) !important;
  background: linear-gradient(145deg, #ffffff, #f0f4fa) !important;
}

:root[data-theme="light"] .product-detail__content {
  background: #ffffff !important;
  border-color: rgba(0, 60, 140, 0.08) !important;
}

:root[data-theme="light"] .product-detail__content h2 {
  background: none !important;
  -webkit-text-fill-color: #0d1a2e !important;
  color: #0d1a2e !important;
}

:root[data-theme="light"] .product-detail__crumb {
  color: #6b7a8d !important;
}

:root[data-theme="light"] .product-detail__meta span {
  border-color: rgba(0, 60, 140, 0.12) !important;
  background: rgba(0, 60, 140, 0.04) !important;
  color: #3d5068 !important;
}

:root[data-theme="light"] .product-detail__content h3,
:root[data-theme="light"] .product-detail__buybox h3 {
  border-bottom-color: rgba(0, 60, 140, 0.1) !important;
  background: linear-gradient(135deg, rgba(0, 80, 180, 0.06), rgba(0, 60, 140, 0.03)) !important;
  color: #0d1a2e !important;
}

:root[data-theme="light"] .product-detail__price {
  background: linear-gradient(135deg, #0055cc, #0077ee) !important;
  -webkit-background-clip: text !important;
  -webkit-text-fill-color: transparent !important;
  background-clip: text !important;
  filter: none !important;
}

:root[data-theme="light"] .product-detail__content > p:not(.section-label) {
  color: #3d5068 !important;
}

:root[data-theme="light"] .product-detail__specs {
  border-top-color: rgba(0, 60, 140, 0.1) !important;
}

:root[data-theme="light"] .product-detail__specs div {
  border-bottom-color: rgba(0, 60, 140, 0.08) !important;
}

:root[data-theme="light"] .product-detail__specs div:hover {
  background: rgba(0, 80, 180, 0.03) !important;
}

:root[data-theme="light"] .product-detail__specs dt {
  color: #0f1b2d !important;
}

:root[data-theme="light"] .product-detail__specs dd {
  color: #0055cc !important;
}

:root[data-theme="light"] .product-detail__buybox {
  background: #f8fafc !important;
  border-left-color: rgba(0, 60, 140, 0.08) !important;
}

:root[data-theme="light"] .product-detail__buybox label,
:root[data-theme="light"] .product-detail__buybox p {
  color: #1a2a40 !important;
}

:root[data-theme="light"] .product-detail__buybox input {
  border-color: rgba(0, 60, 140, 0.15) !important;
  background: #ffffff !important;
  color: #1a2a40 !important;
}

:root[data-theme="light"] .product-detail__buybox input:focus {
  border-color: #0066ff !important;
  box-shadow: 0 0 0 3px rgba(0, 100, 220, 0.1) !important;
}

:root[data-theme="light"] .product-detail__buybox p b,
:root[data-theme="light"] .product-detail__buybox a {
  color: #0055cc !important;
  text-shadow: none !important;
}

:root[data-theme="light"] .product-detail__buy {
  background: linear-gradient(135deg, #0066ff, #0044cc) !important;
  box-shadow: 0 4px 16px rgba(0, 80, 180, 0.2) !important;
}

:root[data-theme="light"] .product-detail__buy:hover {
  box-shadow: 0 8px 24px rgba(0, 80, 180, 0.3) !important;
}

:root[data-theme="light"] .product-detail__buybox ul {
  color: #3d5068 !important;
}

:root[data-theme="light"] .product-detail__buybox ul li::before {
  color: #0055cc !important;
}

:root[data-theme="light"] .product-detail__close {
  border-color: rgba(0, 60, 140, 0.12) !important;
  background: rgba(0, 60, 140, 0.04) !important;
  color: #6b7a8d !important;
}

:root[data-theme="light"] .product-detail__close:hover {
  border-color: #0066ff !important;
  background: rgba(0, 100, 220, 0.08) !important;
  color: #0055cc !important;
  box-shadow: 0 2px 8px rgba(0, 80, 180, 0.1) !important;
}

:root[data-theme="light"] .product-detail__thumbs span {
  border-color: rgba(0, 60, 140, 0.1) !important;
  background: linear-gradient(145deg, #f8fafc, #f0f4fa) !important;
}

:root[data-theme="light"] .callback-row input {
  border-color: rgba(0, 60, 140, 0.15) !important;
  background: #ffffff !important;
  color: #1a2a40 !important;
}

:root[data-theme="light"] .callback-row button {
  background: #0055cc !important;
  border-color: #0055cc !important;
  color: #ffffff !important;
}

/* ── Checkout modal light ── */
:root[data-theme="light"] .checkout__panel {
  background: #ffffff !important;
  border-color: rgba(0, 60, 140, 0.12) !important;
  color: #1a2a40 !important;
}

:root[data-theme="light"] .checkout__panel h2 {
  color: #0d1a2e !important;
  -webkit-text-fill-color: #0d1a2e !important;
}

:root[data-theme="light"] .checkout-steps li {
  border-color: rgba(0, 60, 140, 0.12) !important;
  color: #6b7a8d !important;
}

:root[data-theme="light"] .checkout-steps li.is-active {
  border-color: #0055cc !important;
  color: #0d1a2e !important;
}

:root[data-theme="light"] .checkout-product {
  border-color: rgba(0, 60, 140, 0.1) !important;
  background: #f5f8fc !important;
}

:root[data-theme="light"] .checkout-product span {
  color: #0055cc !important;
}

:root[data-theme="light"] .checkout-form input,
:root[data-theme="light"] .checkout-form select,
:root[data-theme="light"] .checkout-form textarea {
  border-color: rgba(0, 60, 140, 0.15) !important;
  background: #f8fafc !important;
  color: #1a2a40 !important;
}

:root[data-theme="light"] .checkout-form button {
  background: linear-gradient(135deg, #0066ff, #0044cc) !important;
  box-shadow: 0 4px 12px rgba(0, 80, 180, 0.2) !important;
}

:root[data-theme="light"] .checkout-note {
  border-color: rgba(0, 60, 140, 0.1) !important;
  background: #f5f8fc !important;
  color: #4a6080 !important;
}

/* ── Counter animated shimmer: blue for light ── */
:root[data-theme="light"] .counter-animated {
  background: linear-gradient(90deg, #0055cc 0%, #0077ee 25%, #0055cc 50%, #0077ee 75%, #0055cc 100%) !important;
  -webkit-text-fill-color: transparent !important;
}

/* ── Product trust strip ── */
:root[data-theme="light"] .products-trust-strip {
  border-color: rgba(0, 60, 140, 0.1) !important;
  background: rgba(255, 255, 255, 0.6) !important;
  color: #3d5068 !important;
}

/* ── Accent line ── */
:root[data-theme="light"] .hero__accent-line {
  background: linear-gradient(90deg, #0066ff, #0044cc) !important;
  box-shadow: none !important;
}

/* ── Product card tag badges ── */
:root[data-theme="light"] .product-card__tag--new {
  background: linear-gradient(135deg, #0066ff, #0044cc) !important;
  box-shadow: 0 2px 8px rgba(0, 80, 180, 0.2) !important;
}

:root[data-theme="light"] .product-card__tag--stock {
  background: #0055cc !important;
  color: #fff !important;
}

:root[data-theme="light"] .product-card__tag--premium {
  background: linear-gradient(110deg, #0055cc, #0077ee) !important;
  box-shadow: 0 2px 8px rgba(0, 80, 180, 0.2) !important;
}

/* ── Solution card links ── */
:root[data-theme="light"] .solution-card__link {
  color: #4db4ff !important;
}

/* ── Contact form button ── */
:root[data-theme="light"] .contact-form button {
  background: linear-gradient(135deg, #0066ff 0%, #0044cc 100%) !important;
  box-shadow: 0 4px 16px rgba(0, 80, 180, 0.2) !important;
}

:root[data-theme="light"] .contact-form button:hover {
  background: linear-gradient(135deg, #0077ee 0%, #0055cc 100%) !important;
  box-shadow: 0 8px 24px rgba(0, 80, 180, 0.3) !important;
}

/* ── Contact & Footer: must override WOW REDESIGN !important ── */
:root[data-theme="light"] .contact {
  background:
    radial-gradient(ellipse 75% 60% at 50% 120%, rgba(0, 70, 200, 0.06), transparent),
    radial-gradient(ellipse 45% 45% at 95% 4%, rgba(0, 100, 200, 0.04), transparent),
    linear-gradient(170deg, #e4ecf6 0%, #edf2f9 50%, #e8f0f8 100%) !important;
  color: #1a2a40 !important;
}

:root[data-theme="light"] .footer {
  background:
    radial-gradient(ellipse 80% 50% at 50% 110%, rgba(0, 60, 160, 0.04), transparent),
    linear-gradient(180deg, #e2ebf5 0%, #dae4f0 50%, #d4dfe9 100%) !important;
  color: #4a6080 !important;
}

:root[data-theme="light"] .showcase {
  background:
    radial-gradient(ellipse 60% 40% at 50% 0%, rgba(0, 80, 180, 0.04), transparent),
    linear-gradient(180deg, #e8f0f9 0%, #edf2f8 100%) !important;
}

:root[data-theme="light"] .intro {
  background:
    radial-gradient(ellipse 60% 40% at 50% 100%, rgba(0, 80, 180, 0.04), transparent),
    linear-gradient(180deg, #edf2f8 0%, #e8f0f9 100%) !important;
}

:root[data-theme="light"] .solutions {
  background:
    radial-gradient(ellipse 60% 40% at 50% 50%, rgba(0, 80, 180, 0.04), transparent),
    linear-gradient(180deg, #e8f0f9 0%, #edf2f8 100%) !important;
}

:root[data-theme="light"] .catalog {
  background:
    radial-gradient(ellipse 60% 40% at 50% 100%, rgba(0, 80, 180, 0.04), transparent),
    linear-gradient(180deg, #edf2f8 0%, #e8f0f9 100%) !important;
}

/* ── All section text overrides for light ── */
:root[data-theme="light"] .contact h2,
:root[data-theme="light"] .contact h3,
:root[data-theme="light"] .footer__brand strong {
  color: #0d1a2e !important;
  -webkit-text-fill-color: #0d1a2e !important;
  background: none !important;
  filter: none !important;
}

:root[data-theme="light"] .contact p,
:root[data-theme="light"] .contact span,
:root[data-theme="light"] .contact-feature span {
  color: #4a6080 !important;
}

:root[data-theme="light"] .contact-feature strong,
:root[data-theme="light"] .contact li strong {
  color: #0055cc !important;
}

:root[data-theme="light"] .footer__brand p,
:root[data-theme="light"] .footer nav a,
:root[data-theme="light"] .footer__bottom {
  color: #4a6080 !important;
}

:root[data-theme="light"] .footer__nav-label {
  color: #0055cc !important;
}

/* ── Bản đồ Google Maps nhúng trong phần Liên hệ ── */
.contact-map {
  margin-top: 36px;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.28);
}

.contact-map__bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  color: var(--text);
}

.contact-map__bar svg {
  width: 20px;
  height: 20px;
  color: var(--red);
  flex-shrink: 0;
}

.contact-map__bar span {
  flex: 1;
  font-weight: 600;
}

.contact-map__bar a {
  color: var(--red);
  font-weight: 700;
  white-space: nowrap;
  text-decoration: none;
}

.contact-map__bar a:hover {
  text-decoration: underline;
}

.contact-map__frame {
  display: block;
  width: 100%;
  height: 380px;
  border: 0;
}

/* Tông tối cho bản đồ khi ở chế độ dark, hợp với giao diện */
:root[data-theme="dark"] .contact-map__frame {
  filter: invert(0.9) hue-rotate(180deg) brightness(0.95) contrast(0.92);
}

@media (max-width: 640px) {
  .contact-map__bar {
    flex-wrap: wrap;
    gap: 8px;
  }
  .contact-map__bar span {
    flex: 1 1 100%;
    order: 3;
    font-size: 13px;
  }
  .contact-map__frame {
    height: 300px;
  }
}

/* ── Cụm nút liên hệ nổi: Hotline · Zalo · Fanpage ── */
.float-contact {
  position: fixed;
  right: 18px;
  bottom: 24px;
  z-index: 70;
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: flex-end;
}

.float-contact__btn {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  color: #fff;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  transition: transform 0.25s ease;
}

.float-contact__btn:hover,
.float-contact__btn:focus-visible {
  transform: translateY(-3px) scale(1.06);
}

.float-contact__btn svg {
  width: 28px;
  height: 28px;
}

.float-contact__btn--hotline {
  background: linear-gradient(135deg, var(--cta), var(--cta-dark));
  animation: floatPulseGreen 2.2s ease-out infinite;
}

.float-contact__btn--zalo {
  background: #0068ff;
  animation: floatPulseBlue 2.2s ease-out infinite;
  animation-delay: 0.6s;
}

.float-contact__btn--messenger {
  background: linear-gradient(135deg, #00b2ff, #006aff);
}

.float-contact__btn--fanpage {
  background: #1877f2;
}

.float-contact__btn--maps {
  background: #ea4335;
}

/* Nhãn hiện khi rê chuột (desktop) */
.float-contact__label {
  position: absolute;
  right: 64px;
  white-space: nowrap;
  background: rgba(2, 12, 26, 0.94);
  color: #eef4fb;
  border: 1px solid rgba(0, 180, 255, 0.18);
  padding: 7px 12px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  opacity: 0;
  pointer-events: none;
  transform: translateX(8px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.float-contact__btn:hover .float-contact__label,
.float-contact__btn:focus-visible .float-contact__label {
  opacity: 1;
  transform: translateX(0);
}

@keyframes floatPulseGreen {
  0%   { box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35), 0 0 0 0 rgba(13, 184, 112, 0.5); }
  70%  { box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35), 0 0 0 14px rgba(13, 184, 112, 0); }
  100% { box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35), 0 0 0 0 rgba(13, 184, 112, 0); }
}

@keyframes floatPulseBlue {
  0%   { box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35), 0 0 0 0 rgba(0, 104, 255, 0.5); }
  70%  { box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35), 0 0 0 14px rgba(0, 104, 255, 0); }
  100% { box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35), 0 0 0 0 rgba(0, 104, 255, 0); }
}

/* Trên tablet/mobile: nâng lên cho khỏi đè thanh điều hướng dưới đáy */
@media (max-width: 1024px) {
  .float-contact {
    right: 14px;
    bottom: calc(78px + env(safe-area-inset-bottom));
    gap: 10px;
  }
  .float-contact__btn {
    width: 48px;
    height: 48px;
  }
  .float-contact__btn svg {
    width: 25px;
    height: 25px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .float-contact__btn--hotline,
  .float-contact__btn--zalo {
    animation: none;
  }
}

/* ═══════════════════════════════════════════
   LIGHT MODE — Tăng chiều sâu & đổ bóng
   Thẻ nổi khối, bớt phẳng, sang hơn
   ═══════════════════════════════════════════ */

/* Thẻ nền sáng: trắng đặc, viền rõ, bóng mềm nhiều lớp */
:root[data-theme="light"] .product-card,
:root[data-theme="light"] .metric-card,
:root[data-theme="light"] .metric-grid div,
:root[data-theme="light"] .contact-feature,
:root[data-theme="light"] .news-grid article,
:root[data-theme="light"] .category-grid a {
  background: linear-gradient(180deg, #ffffff 0%, #f3f8fd 100%) !important;
  border: 1px solid rgba(0, 80, 180, 0.14) !important;
  box-shadow:
    0 1px 2px rgba(13, 38, 76, 0.04),
    0 10px 28px rgba(13, 50, 110, 0.09),
    0 3px 8px rgba(13, 50, 110, 0.05) !important;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

:root[data-theme="light"] .product-card:hover,
:root[data-theme="light"] .metric-grid div:hover,
:root[data-theme="light"] .contact-feature:hover,
:root[data-theme="light"] .news-grid article:hover,
:root[data-theme="light"] .category-grid a:hover {
  border-color: rgba(0, 110, 230, 0.42) !important;
  box-shadow:
    0 20px 52px rgba(13, 60, 140, 0.17),
    0 6px 16px rgba(13, 60, 140, 0.1) !important;
}

/* Thẻ ảnh (showcase, solution): giữ ảnh nền tối, thêm viền + bóng cho nổi khối */
:root[data-theme="light"] .showcase-card,
:root[data-theme="light"] .solution-card {
  border: 1px solid rgba(0, 80, 180, 0.18) !important;
  box-shadow:
    0 10px 30px rgba(13, 50, 110, 0.13),
    0 3px 8px rgba(13, 50, 110, 0.08) !important;
}

:root[data-theme="light"] .showcase-card:hover,
:root[data-theme="light"] .solution-card:hover {
  border-color: rgba(0, 110, 230, 0.4) !important;
  box-shadow:
    0 22px 58px rgba(13, 60, 140, 0.22),
    0 8px 18px rgba(13, 60, 140, 0.12) !important;
}

/* Nền section: thêm gradient chiều sâu nhẹ thay vì phẳng */
:root[data-theme="light"] .catalog,
:root[data-theme="light"] .intro,
:root[data-theme="light"] .contact {
  background:
    radial-gradient(ellipse 70% 55% at 50% 0%, rgba(0, 95, 205, 0.06), transparent 62%),
    linear-gradient(180deg, #eef4fb 0%, #e5edf8 100%) !important;
}

/* Accent xanh đậm & nét hơn cho nhãn mục + nút CTA phụ */
:root[data-theme="light"] .section-label {
  color: #006ae6 !important;
}

/* Khối bản đồ: bóng đậm hơn cho hợp tổng thể */
:root[data-theme="light"] .contact-map {
  box-shadow: 0 14px 40px rgba(13, 50, 110, 0.12) !important;
  border-color: rgba(0, 80, 180, 0.14) !important;
}

/* ── FIX #1: Metric label "NĂM KINH NGHIỆM" v.v. — quá nhạt trên nền trắng ── */
:root[data-theme="light"] .metric-grid span {
  color: #3d5068 !important;
}

/* ── FIX #2: Thanh "Engineered in Germany" — nền tối lạc lõng trên thẻ sáng ── */
:root[data-theme="light"] .product-card__germany {
  background: linear-gradient(180deg, #edf2f8 0%, #e0e9f4 100%) !important;
  border-top: 1px solid rgba(0, 80, 180, 0.1) !important;
  color: #3d5068 !important;
  backdrop-filter: none !important;
}

/* ── FIX #3: Contact form — nền tối, nhãn mờ → chuyển sang nền sáng, nhãn đậm ── */
:root[data-theme="light"] .contact-form {
  background: linear-gradient(180deg, #ffffff 0%, #f3f8fd 100%) !important;
  border: 1px solid rgba(0, 80, 180, 0.16) !important;
  border-top: 3px solid rgba(0, 100, 220, 0.35) !important;
  box-shadow: 0 14px 40px rgba(13, 50, 110, 0.12) !important;
  backdrop-filter: none !important;
}

:root[data-theme="light"] .contact-form::before {
  background: linear-gradient(90deg, transparent, rgba(0, 100, 220, 0.15) 30%, rgba(0, 80, 200, 0.2) 50%, rgba(0, 100, 220, 0.15) 70%, transparent) !important;
}

:root[data-theme="light"] .contact-form label span {
  color: #1a3050 !important;
  font-weight: 700 !important;
}

:root[data-theme="light"] .contact-form .section-label,
:root[data-theme="light"] .contact-form__header .section-label {
  color: #006ae6 !important;
}

:root[data-theme="light"] .contact-form input,
:root[data-theme="light"] .contact-form textarea {
  background: #f5f8fc !important;
  border-color: rgba(0, 80, 160, 0.16) !important;
  color: #1a2a40 !important;
}

:root[data-theme="light"] .contact-form ::placeholder {
  color: rgba(60, 80, 110, 0.5) !important;
}

:root[data-theme="light"] .contact-form__field-icon {
  color: rgba(0, 80, 180, 0.4) !important;
}

/* ═══════════════════════════════════════════
   DEPTH UPGRADE — Gradient mềm nhiều lớp
   Tạo cảm giác "sâu" như nhìn vào không gian
   ═══════════════════════════════════════════ */

/* ── DARK MODE: Nền sâu hơn với gradient phân lớp giữa các section ── */

/* Kích hoạt lại page-depth overlay — vignette tối viền */
.page-depth {
  display: block !important;
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 120% 80% at 50% 50%, transparent 40%, rgba(0, 0, 0, 0.4) 100%);
}

/* Grain texture nhẹ cho chiều sâu */
.page-grain {
  display: block !important;
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 200px 200px;
}

/* Section glow: ánh sáng mềm phía trên mỗi section tạo chiều sâu */
.showcase::after,
.intro::after,
.solutions::after,
.catalog::after,
#news::after,
.contact::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 220px;
  background: radial-gradient(ellipse 80% 100% at 50% 0%, rgba(0, 140, 255, 0.07), transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* Gradient sâu dọc body — thêm lớp tím/xanh xen kẽ */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(ellipse 60% 30% at 15% 20%, rgba(120, 40, 220, 0.07), transparent 60%),
    radial-gradient(ellipse 50% 25% at 85% 35%, rgba(0, 180, 255, 0.06), transparent 55%),
    radial-gradient(ellipse 55% 35% at 30% 65%, rgba(0, 100, 200, 0.05), transparent 60%),
    radial-gradient(ellipse 45% 30% at 75% 80%, rgba(140, 50, 230, 0.06), transparent 55%),
    radial-gradient(ellipse 80% 40% at 50% 100%, rgba(0, 60, 140, 0.1), transparent 50%);
}

/* ── LIGHT MODE: Gradient mềm nhiều lớp — bớt phẳng ── */
:root[data-theme="light"] .page-depth {
  background:
    radial-gradient(ellipse 120% 80% at 50% 50%, transparent 50%, rgba(180, 200, 230, 0.25) 100%) !important;
}

:root[data-theme="light"] .page-grain {
  opacity: 0.018 !important;
}

:root[data-theme="light"] body::before {
  background:
    radial-gradient(ellipse 70% 40% at 10% 15%, rgba(0, 100, 220, 0.06), transparent 55%),
    radial-gradient(ellipse 50% 30% at 90% 25%, rgba(80, 60, 200, 0.04), transparent 50%),
    radial-gradient(ellipse 60% 35% at 25% 60%, rgba(0, 140, 255, 0.05), transparent 55%),
    radial-gradient(ellipse 50% 30% at 80% 75%, rgba(60, 40, 180, 0.04), transparent 50%),
    radial-gradient(ellipse 100% 50% at 50% 100%, rgba(0, 80, 180, 0.06), transparent 50%) !important;
}

:root[data-theme="light"] .showcase::after,
:root[data-theme="light"] .intro::after,
:root[data-theme="light"] .solutions::after,
:root[data-theme="light"] .catalog::after,
:root[data-theme="light"] #news::after,
:root[data-theme="light"] .contact::after {
  background: radial-gradient(ellipse 80% 100% at 50% 0%, rgba(0, 100, 220, 0.05), transparent 70%) !important;
}

/* ═══════════════════════════════════════════
   SVG Icon Animations — sống động
   ═══════════════════════════════════════════ */

/* Container glow on hover */
.svg-icon-animated {
  transition: box-shadow 0.3s ease, border-color 0.3s ease;
}

.svg-icon-animated:hover {
  border-color: rgba(0, 229, 255, 0.5) !important;
  box-shadow: 0 0 18px rgba(0, 229, 255, 0.2), 0 0 6px rgba(47, 111, 232, 0.15);
}

/* Pulse — nhịp đập nhẹ (dùng cho shield, bubble) */
.svg-pulse {
  animation: svgPulse 2.5s ease-in-out infinite;
}

@keyframes svgPulse {
  0%, 100% { fill-opacity: 0.08; }
  50% { fill-opacity: 0.18; }
}

/* Bounce — nảy nhẹ (dùng cho grid squares, chat dots, music notes) */
.svg-bounce {
  animation: svgBounce 2s ease-in-out infinite;
}

@keyframes svgBounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-1.5px); }
}

/* Wave — sóng lan (dùng cho broadcast icon) */
.svg-wave {
  animation: svgWave 2s ease-in-out infinite;
}

@keyframes svgWave {
  0%, 100% { opacity: 0.15; }
  50% { opacity: 0.7; }
}

/* Draw — vẽ đường (dùng cho heartbeat/pulse line) */
.svg-draw {
  stroke-dasharray: 80;
  stroke-dashoffset: 80;
  animation: svgDraw 2.5s ease-in-out infinite;
}

@keyframes svgDraw {
  0% { stroke-dashoffset: 80; }
  50% { stroke-dashoffset: 0; }
  100% { stroke-dashoffset: -80; }
}

/* Hand — xoay kim đồng hồ (dùng cho clock icon) */
.svg-hand {
  transform-origin: 12px 12px;
  animation: svgHand 6s linear infinite;
}

@keyframes svgHand {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Equalizer bars — thanh nhạc nhảy lên xuống (dùng cho headphone icon) */
.svg-eq {
  transform-origin: center bottom;
  animation: svgEq 1.2s ease-in-out infinite;
}

@keyframes svgEq {
  0%, 100% { transform: scaleY(1); opacity: 0.4; }
  50% { transform: scaleY(0.5); opacity: 0.8; }
}

/* Spin slow — xoay chậm (dùng cho gear icon) */
.svg-spin-slow {
  transform-origin: 20px 20px;
  animation: svgSpinSlow 12s linear infinite;
}

@keyframes svgSpinSlow {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* ── Cart Drawer ── */
.cart-drawer {
  position: fixed;
  inset: 0;
  z-index: 110;
  display: none;
  background: rgba(0, 4, 14, 0.7);
  backdrop-filter: blur(8px);
}

.cart-drawer.is-open {
  display: block;
}

.cart-drawer__panel {
  position: absolute;
  top: 0;
  right: 0;
  width: min(420px, 100%);
  height: 100%;
  display: flex;
  flex-direction: column;
  background: #0a1628;
  border-left: 1px solid rgba(0, 180, 255, 0.12);
  box-shadow: -20px 0 60px rgba(0, 0, 0, 0.5);
  animation: slideInRight 0.3s ease;
}

@keyframes slideInRight {
  from { transform: translateX(100%); }
  to { transform: translateX(0); }
}

.cart-drawer__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.cart-drawer__header h2 {
  font-family: "Inter", sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--white);
  margin: 0;
}

.cart-drawer__close {
  width: 34px;
  height: 34px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--white);
  cursor: pointer;
  font-size: 22px;
  line-height: 1;
  border-radius: 4px;
  transition: background 0.2s;
}

.cart-drawer__close:hover {
  background: rgba(255, 255, 255, 0.06);
}

.cart-drawer__items {
  flex: 1;
  overflow-y: auto;
  padding: 16px 24px;
}

.cart-drawer__empty {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex: 1;
  gap: 20px;
  color: var(--muted);
  font-size: 15px;
  padding: 40px 24px;
}

.cart-drawer__empty p {
  margin: 0;
}

.cart-drawer.is-empty .cart-drawer__items,
.cart-drawer.is-empty .cart-drawer__footer {
  display: none;
}

.cart-drawer.is-empty .cart-drawer__empty {
  display: flex;
}

.cart-item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px 16px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.cart-item__name {
  font-weight: 700;
  font-size: 14px;
  color: var(--white);
}

.cart-item__price {
  text-align: right;
  font-weight: 800;
  font-size: 14px;
  color: var(--cyan);
}

.cart-item__controls {
  display: flex;
  align-items: center;
  gap: 8px;
}

.cart-item__qty-btn {
  width: 28px;
  height: 28px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 4px;
  background: transparent;
  color: var(--white);
  cursor: pointer;
  font-size: 16px;
  line-height: 1;
  display: grid;
  place-items: center;
  transition: background 0.2s;
}

.cart-item__qty-btn:hover {
  background: rgba(255, 255, 255, 0.08);
}

.cart-item__qty {
  min-width: 24px;
  text-align: center;
  font-weight: 700;
  font-size: 14px;
  color: var(--white);
}

.cart-item__remove {
  margin-left: auto;
  border: 0;
  background: transparent;
  color: #ef4444;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  padding: 4px 8px;
  border-radius: 4px;
  transition: background 0.2s;
}

.cart-item__remove:hover {
  background: rgba(239, 68, 68, 0.1);
}

.cart-drawer__footer {
  padding: 20px 24px;
  border-top: 1px solid rgba(0, 180, 255, 0.12);
  background: rgba(0, 0, 0, 0.2);
}

.cart-drawer__total {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  font-size: 16px;
  color: var(--white);
}

.cart-drawer__total strong {
  font-size: 20px;
  font-weight: 800;
  color: var(--green);
}

.cart-drawer__checkout {
  width: 100%;
  min-height: 48px;
  border: 0;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--cyan) 0%, var(--purple) 50%, var(--magenta) 100%);
  color: #ffffff;
  cursor: pointer;
  font-weight: 800;
  font-size: 15px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  box-shadow: 0 0 24px rgba(0, 229, 255, 0.2);
  transition: box-shadow 0.3s, transform 0.2s;
  margin-bottom: 10px;
}

.cart-drawer__checkout:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 32px rgba(0, 229, 255, 0.35);
}

.cart-drawer__continue {
  width: 100%;
  min-height: 40px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-weight: 600;
  font-size: 13px;
  transition: color 0.2s;
}

.cart-drawer__continue:hover {
  color: var(--white);
}

/* ── Checkout products list ── */
.checkout-products {
  margin-bottom: 16px;
}

.checkout-products .checkout-product-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border: 1px solid var(--line);
  margin-bottom: 6px;
  padding: 10px 14px;
  background: var(--panel);
  font-size: 14px;
}

.checkout-products .checkout-product-row strong {
  font-weight: 700;
  color: var(--white);
}

.checkout-products .checkout-product-row .qty {
  color: var(--muted);
  font-size: 13px;
}

.checkout-products .checkout-product-row .subtotal {
  color: var(--green);
  font-weight: 800;
  white-space: nowrap;
}

.checkout-products .checkout-total-row {
  display: flex;
  justify-content: space-between;
  padding: 12px 14px;
  border: 1px solid rgba(0, 180, 255, 0.2);
  background: rgba(0, 180, 255, 0.04);
  font-weight: 800;
  color: var(--white);
}

.checkout-products .checkout-total-row span:last-child {
  color: var(--green);
  font-size: 17px;
}

/* ── Cart toast notification ── */
.cart-toast {
  position: fixed;
  top: 80px;
  right: 24px;
  z-index: 120;
  padding: 14px 22px;
  border-radius: 8px;
  background: linear-gradient(135deg, #00c853 0%, #009624 100%);
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  box-shadow: 0 8px 30px rgba(0, 200, 83, 0.3);
  transform: translateX(120%);
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
  pointer-events: none;
}

.cart-toast.is-visible {
  transform: translateX(0);
}

/* ── Checkout success state ── */
.checkout-success {
  display: none;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 16px;
  padding: 40px 20px;
}

.checkout-success.is-visible {
  display: flex;
}

.checkout-success__icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, #00c853, #009624);
  display: grid;
  place-items: center;
  font-size: 32px;
  color: #fff;
}

.checkout-success h3 {
  font-size: 22px;
  font-weight: 800;
  color: var(--white);
  margin: 0;
}

.checkout-success p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
  margin: 0;
}

/* ── Product card add-to-cart button ── */
.product-card__add-cart {
  width: 100%;
  min-height: 38px;
  margin-top: 6px;
  border: 1px solid rgba(0, 229, 255, 0.2);
  border-radius: 6px;
  background: transparent;
  color: var(--cyan);
  cursor: pointer;
  font-weight: 700;
  font-size: 13px;
  transition: background 0.2s, color 0.2s;
}

.product-card__add-cart:hover {
  background: rgba(0, 229, 255, 0.08);
}

.product-card__add-cart.added {
  background: rgba(0, 200, 83, 0.12);
  color: #00c853;
  border-color: rgba(0, 200, 83, 0.3);
}

/* ── Light theme overrides ── */
:root[data-theme="light"] .cart-drawer__panel {
  background: #fff;
  border-left-color: #e0e8f0;
}

:root[data-theme="light"] .cart-drawer__header {
  border-bottom-color: #e0e8f0;
}

:root[data-theme="light"] .cart-drawer__header h2 {
  color: #1a1a2e;
}

:root[data-theme="light"] .cart-item__name {
  color: #1a1a2e;
}

:root[data-theme="light"] .cart-item__price {
  color: #0055cc;
}

:root[data-theme="light"] .cart-item {
  border-bottom-color: #e0e8f0;
}

:root[data-theme="light"] .cart-drawer__footer {
  background: #f7f9fc;
  border-top-color: #e0e8f0;
}

:root[data-theme="light"] .cart-drawer__total {
  color: #1a1a2e;
}

:root[data-theme="light"] .cart-drawer__total strong {
  color: #0055cc;
}

:root[data-theme="light"] .product-card__add-cart {
  border-color: rgba(0, 85, 204, 0.2);
  color: #0055cc;
}

:root[data-theme="light"] .product-card__add-cart:hover {
  background: rgba(0, 85, 204, 0.06);
}

@media (prefers-reduced-motion: reduce) {
  .svg-pulse, .svg-bounce, .svg-wave, .svg-draw, .svg-hand, .svg-eq, .svg-spin-slow { animation: none; }
}

/* ── Accessibility: tôn trọng "giảm chuyển động" của hệ điều hành ──
   Tắt mọi animation lặp & rút transition về gần như tức thì, nhưng vẫn
   để các phần tử hiện ra ở trạng thái cuối (không bị ẩn). */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  /* Ẩn hẳn các hiệu ứng nền thuần trang trí */
  .hero__particles,
  .hero__sound-wave,
  .hero__scroll-hint {
    display: none !important;
  }
}
