:root {
  --bg: #080a0d;
  --bg-soft: #10151b;
  --panel: rgba(16, 21, 27, 0.88);
  --panel-solid: #12181f;
  --line: rgba(255, 255, 255, 0.09);
  --text: #f3f6fb;
  --muted: #a4afbf;
  --accent: #81d7ed;
  --accent-strong: #5a9cff;
  --radius: 20px;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.28);
  --font-body: "Manrope", sans-serif;
  --font-heading: "Sora", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
}

body.variant-home,
body.variant-1,
body.variant-4,
body.variant-5 {
  background:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    radial-gradient(circle at top left, rgba(129, 215, 237, 0.12), transparent 24rem),
    radial-gradient(circle at top right, rgba(90, 156, 255, 0.1), transparent 26rem),
    var(--bg);
  background-size: 36px 36px, 36px 36px, auto, auto, auto;
}

body.variant-2 {
  background:
    radial-gradient(circle at 20% 0%, rgba(90, 156, 255, 0.15), transparent 20rem),
    linear-gradient(180deg, #090c11, #0d1118 48%, #090c11);
  --font-body: "IBM Plex Sans", sans-serif;
  --font-heading: "Space Grotesk", sans-serif;
}

.clinical-theme,
body.variant-3 {
  --bg: #f5f7fa;
  --bg-soft: #edf2f7;
  --panel: rgba(255, 255, 255, 0.9);
  --panel-solid: #ffffff;
  --line: rgba(14, 23, 38, 0.09);
  --text: #0e1624;
  --muted: #526170;
  --accent: #297dff;
  --accent-strong: #194dca;
  --font-body: "IBM Plex Sans", sans-serif;
  --font-heading: "Plus Jakarta Sans", sans-serif;
  background:
    linear-gradient(rgba(14, 22, 36, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(14, 22, 36, 0.03) 1px, transparent 1px),
    linear-gradient(180deg, #fafbfd, #f1f5f9);
  background-size: 34px 34px, 34px 34px, auto;
}

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

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

p {
  color: var(--muted);
  line-height: 1.7;
}

.variant-shell {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
  padding-bottom: 4rem;
}

.variant-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
}

.variant-brand {
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.variant-switcher,
.utility-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.variant-switcher a,
.utility-nav a,
.cta,
.picker-card {
  border: 1px solid var(--line);
  border-radius: 14px;
}

.variant-switcher a,
.utility-nav a {
  padding: 0.7rem 0.9rem;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.03);
}

.variant-switcher a.active {
  color: var(--text);
  background: rgba(129, 215, 237, 0.11);
}

.picker-page {
  padding-top: 3rem;
}

.picker-hero,
.hero-centered,
.hero-clinical,
.blueprint-hero {
  text-align: center;
  max-width: 880px;
  margin: 0 auto;
}

.picker-eyebrow,
.hero-kicker,
.section-label,
.picker-tag,
.metric-label,
.band-label {
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  font-weight: 700;
}

.picker-hero h1,
.hero-centered h1,
.hero-copy h1,
.hero-clinical h1,
.blueprint-hero h1 {
  margin: 0.8rem 0 1rem;
  font-family: var(--font-heading);
  font-size: clamp(2.6rem, 6vw, 4.8rem);
  line-height: 1.02;
  letter-spacing: -0.05em;
}

.picker-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 2.5rem;
}

.picker-card {
  padding: 1.5rem;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.picker-card h2,
.panel-card h3,
.metric-tile strong,
.spec-card h3,
.clinical-card h2,
.clinical-card h3,
.band-card h3,
.blueprint-card h2,
.blueprint-card h3 {
  margin: 0.6rem 0;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 0.8rem;
  margin-top: 1.8rem;
}

.cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.85rem 1.15rem;
  background: rgba(255, 255, 255, 0.03);
}

.cta.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #08111d;
  border-color: transparent;
  font-weight: 800;
}

.hero-centered {
  padding: 5rem 0 3rem;
}

.hero-centered.compact {
  max-width: 820px;
}

.device-rail,
.two-panel-showcase,
.quad-grid,
.triple-grid,
.spec-row,
.clinical-grid,
.triple-bands,
.blueprint-grid,
.dual-stack,
.dual-detail-grid,
.mini-grid,
.ecosystem-grid,
.ecosystem-layout,
.ecosystem-points,
.ecosystem-gallery,
.gallery-top,
.gallery-bottom,
.feature-story,
.trust-strip,
.widget-pair,
.widget-showcase {
  display: grid;
  gap: 1rem;
}

.device-rail {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.feature-story {
  grid-template-columns: 1.22fr 0.78fr;
  align-items: center;
  padding-top: 4.5rem;
}

.story-copy {
  text-align: left;
}

.story-copy h2,
.ecosystem-section h2,
.trust-copy h2 {
  margin: 0.7rem 0 1rem;
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3.2rem);
  line-height: 1.06;
  letter-spacing: -0.04em;
}

.story-shot,
.wide-device-shot,
.widget-card {
  padding: 0.8rem;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.story-shot {
  max-width: 22rem;
  justify-self: end;
}

.story-shot img,
.wide-device-shot img,
.widget-card img {
  width: 100%;
  border-radius: calc(var(--radius) - 6px);
}

.mini-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 1.5rem;
}

.mini-card {
  padding: 1rem 1.05rem;
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid var(--line);
  border-radius: 16px;
}

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

.mini-card span {
  margin-top: 0.35rem;
  color: var(--muted);
  line-height: 1.55;
}

.device-shot,
.wide-shot,
.panel-card,
.spec-card,
.clinical-card,
.band-card,
.blueprint-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.device-shot,
.wide-shot {
  padding: 0.75rem;
}

.device-shot img,
.wide-shot img,
.clinical-card img,
.band-card img,
.blueprint-card img {
  width: 100%;
  border-radius: calc(var(--radius) - 6px);
}

.balanced-section {
  padding-top: 4.5rem;
  text-align: center;
}

.balanced-section h2 {
  max-width: 760px;
  margin: 0.7rem auto 0;
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1.06;
}

.quad-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 2rem;
}

.triple-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 2rem;
}

.panel-card,
.spec-card,
.clinical-card,
.band-card,
.blueprint-card {
  padding: 1.5rem;
  text-align: left;
}

.hero-split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  align-items: stretch;
  padding: 4rem 0 2rem;
}

.metric-board {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.metric-tile {
  padding: 1.3rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}

.metric-tile strong {
  display: block;
  font-size: 2rem;
  line-height: 1;
}

.metric-note {
  color: var(--muted);
}

.two-panel-showcase {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  padding-top: 2rem;
}

.spec-row {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  padding-top: 2rem;
}

.spec-card span,
.band-label {
  display: inline-block;
  margin-bottom: 1.2rem;
}

.hero-clinical {
  padding: 4rem 0 2rem;
}

.clinical-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.clinical-card.large {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.image-card {
  padding: 0.8rem;
}

.triple-bands {
  grid-template-columns: 1fr 1.2fr 1fr;
  align-items: stretch;
  padding-top: 2.5rem;
}

.band-card.image {
  padding: 0.8rem;
}

.dual-stack {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 2rem;
}

.dual-detail-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 2rem;
}

.ecosystem-section {
  padding-top: 4.5rem;
}

.ecosystem-layout {
  grid-template-columns: 0.92fr 1.08fr;
  align-items: start;
  gap: 1.25rem;
}

.ecosystem-copy {
  text-align: left;
}

.ecosystem-points {
  margin-top: 1.5rem;
}

.compact-card {
  min-height: auto;
}

.ecosystem-gallery {
  align-content: start;
}

.gallery-top {
  grid-template-columns: 1.2fr 0.8fr;
  align-items: center;
}

.gallery-bottom {
  grid-template-columns: 1.05fr 0.95fr;
  align-items: start;
}

.watch-card {
  max-width: 11rem;
  justify-self: center;
}

.sleep-widget {
  padding: 0.45rem;
}

.widget-pair {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.vertical-pair {
  grid-template-columns: 1fr;
}

.health-widget {
  padding: 0.55rem;
}

.trust-strip {
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  padding-top: 4.5rem;
}

.trust-copy {
  text-align: left;
}

.trust-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
}

.blueprint-hero {
  padding: 4rem 0 2rem;
}

.blueprint-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.blueprint-card.intro {
  grid-column: span 2;
}

.blueprint-card ul {
  margin: 1rem 0 0;
  padding-left: 1.2rem;
  color: var(--muted);
  line-height: 1.7;
}

@media (max-width: 940px) {
  .variant-topbar,
  .hero-split,
  .device-rail,
  .feature-story,
  .two-panel-showcase,
  .quad-grid,
  .triple-grid,
  .spec-row,
  .clinical-grid,
  .triple-bands,
  .blueprint-grid,
  .dual-stack,
  .dual-detail-grid,
  .ecosystem-layout,
  .ecosystem-points,
  .ecosystem-gallery,
  .gallery-top,
  .gallery-bottom,
  .trust-strip,
  .picker-grid {
    grid-template-columns: 1fr;
  }

  .metric-board {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .mini-grid,
  .trust-actions,
  .widget-pair {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .variant-topbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .metric-board {
    grid-template-columns: 1fr;
  }

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

  .mini-grid,
  .trust-actions,
  .widget-pair {
    grid-template-columns: 1fr;
  }
}