/* Rhythmotive Web Design System — derived strictly from design/tokens.json v1.0 */

:root {
  color-scheme: dark;
  --bg-base: #0A0A0C;
  --bg-raised: #111116;
  --bg-overlay: #16161B;
  --separator: #1E1E26;
  --text-primary: #F2F2F5;
  --text-secondary: #B8B8C2;
  --text-tertiary: #9A9AA4;
  --accent: #7A8CFF;
  --accent-hover: #A3B2FF;
  --accent-ink: #0A0A0C;
  --field-cyan: #5AC8D8;
  --field-violet: #B48CF2;
  --field-amber: #C9B18C;
  --danger: #E0564C;
  --nav-scrim: rgba(10, 10, 12, 0.82);
  --stage-glow: rgba(122, 140, 255, 0.14);
  --shadow-raised: 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-floating: 0 16px 40px rgba(0, 0, 0, 0.50);

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-7: 32px;
  --space-8: 40px;
  --space-9: 48px;
  --space-10: 64px;

  --radius-control: 10px;
  --radius-card: 14px;
  --radius-panel: 20px;
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg-base: #F5F5F7;
  --bg-raised: #FFFFFF;
  --bg-overlay: #FFFFFF;
  --separator: #E2E2E7;
  --text-primary: #1A1A1E;
  --text-secondary: #55555E;
  --text-tertiary: #6E6E78;
  --accent: #4457DF;
  --accent-hover: #3244C9;
  --accent-ink: #FFFFFF;
  --nav-scrim: rgba(245, 245, 247, 0.86);
  --stage-glow: rgba(68, 87, 223, 0.09);
  --shadow-raised: 0 8px 24px rgba(18, 20, 32, 0.08);
  --shadow-floating: 0 16px 40px rgba(18, 20, 32, 0.14);
}

*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background-color: var(--bg-base);
  background-image: radial-gradient(960px 540px at 18% 0%, var(--stage-glow), transparent 68%);
  color: var(--text-primary);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  min-height: 100svh;
  overflow-x: hidden;
}

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

a {
  color: inherit;
}

code {
  font-family: ui-monospace, "SF Mono", SFMono-Regular, Menlo, monospace;
  font-size: 0.9em;
  background: var(--bg-overlay);
  border: 1px solid var(--separator);
  padding: 2px 6px;
  border-radius: 6px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: var(--space-3);
  z-index: 100;
  background: var(--accent);
  color: var(--accent-ink);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-control);
  font-weight: 600;
  text-decoration: none;
}

.skip-link:focus {
  left: var(--space-4);
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

/* Sticky Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--nav-scrim);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--separator);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
  gap: var(--space-4);
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  min-height: 44px;
  min-width: 0;
}

.brand-icon {
  width: 36px;
  height: 36px;
  border-radius: 9px;
  flex-shrink: 0;
}

.brand-name {
  font-size: 1.125rem;
  font-weight: 650;
  letter-spacing: -0.015em;
  white-space: nowrap;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.nav-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 var(--space-3);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.94rem;
  font-weight: 500;
  border-radius: var(--radius-control);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

/* Tactile Buttons & Controls */
.btn {
  appearance: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: 44px;
  padding: 0 var(--space-5);
  border-radius: var(--radius-control);
  border: 1px solid var(--separator);
  background: var(--bg-raised);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
  transition: transform 120ms cubic-bezier(0.2, 0, 0, 1), background-color 150ms ease, border-color 150ms ease;
}

.btn:active {
  transform: scale(0.97);
}

.btn:focus-visible,
.nav-link:focus-visible,
.tab-btn:focus-visible,
.thumb-btn:focus-visible,
.skin-tile:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: transparent;
}

.btn-secondary {
  background: var(--bg-overlay);
  color: var(--text-primary);
}

.btn-ghost {
  background: transparent;
  padding: 0 var(--space-3);
  color: var(--text-secondary);
}

.btn-sm {
  min-height: 44px;
  padding: 0 var(--space-4);
  font-size: 0.88rem;
}

@media (hover: hover) and (pointer: fine) {
  .nav-link:hover {
    color: var(--text-primary);
    background: var(--bg-raised);
  }
  .btn-primary:hover {
    background: var(--accent-hover);
  }
  .btn-secondary:hover,
  .btn-ghost:hover {
    background: var(--bg-raised);
    color: var(--text-primary);
    border-color: var(--text-tertiary);
  }
}

/* Hero Stage */
.hero-section {
  padding: var(--space-9) 0 var(--space-8);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, 1.18fr);
  gap: var(--space-8);
  align-items: center;
}

.hero-copy {
  min-width: 0;
}

.hero-copy h1 {
  margin: 0 0 var(--space-5);
  font-size: clamp(2.35rem, 4.6vw, 3.65rem);
  font-weight: 700;
  line-height: 1.06;
  letter-spacing: -0.028em;
}

.lead-copy {
  margin: 0 0 var(--space-6);
  font-size: clamp(1.06rem, 1.45vw, 1.22rem);
  line-height: 1.52;
  color: var(--text-secondary);
  max-width: 54ch;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
}

.platform-availability {
  margin: var(--space-4) 0 0;
  font-size: 0.9rem;
  color: var(--text-tertiary);
}

.hero-stage-frame {
  position: relative;
  border-radius: var(--radius-panel);
  overflow: hidden;
  border: 1px solid var(--separator);
  background: #06070B;
  box-shadow: var(--shadow-floating);
  aspect-ratio: 16 / 10;
}

.hero-stage-video,
.hero-stage-poster {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-stage-caption {
  position: absolute;
  left: var(--space-4);
  right: var(--space-4);
  bottom: var(--space-4);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-control);
  background: rgba(10, 10, 12, 0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  color: #F2F2F5;
  font-size: 0.86rem;
}

.hero-stage-caption span {
  color: #B8B8C2;
}

/* Section Rhythm — always more space above headings than below */
.section-block {
  padding: var(--space-10) 0 var(--space-7);
  border-top: 1px solid var(--separator);
}

.section-header {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-5);
  margin-bottom: var(--space-6);
}

.section-header h2 {
  margin: 0 0 var(--space-2);
  font-size: clamp(1.75rem, 3.1vw, 2.4rem);
  font-weight: 680;
  line-height: 1.14;
  letter-spacing: -0.022em;
}

.section-header p {
  margin: 0;
  color: var(--text-secondary);
  max-width: 58ch;
  font-size: 1.02rem;
}

/* Segmented Switchers (Zero custom animation on tab switches) */
.segmented-bar {
  display: inline-flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  padding: var(--space-1);
  border-radius: var(--radius-card);
  background: var(--bg-raised);
  border: 1px solid var(--separator);
}

.tab-btn {
  appearance: none;
  min-height: 44px;
  padding: 0 var(--space-4);
  border: 0;
  border-radius: var(--radius-control);
  background: transparent;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
}

.tab-btn[aria-selected="true"] {
  background: var(--bg-overlay);
  color: var(--text-primary);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.28);
}

.tab-btn:active {
  transform: scale(0.97);
}

/* Promo Cinema Player */
.cinema-shell {
  border-radius: var(--radius-panel);
  overflow: hidden;
  border: 1px solid var(--separator);
  background: #05060A;
  box-shadow: var(--shadow-floating);
}

.cinema-video-wrap {
  position: relative;
  aspect-ratio: 16 / 9;
  background: #05060A;
}

.cinema-video {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #05060A;
}

.cinema-meta-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-5);
  background: var(--bg-raised);
  border-top: 1px solid var(--separator);
}

.cinema-track-info {
  min-width: 0;
}

.cinema-track-info strong {
  display: block;
  font-size: 1rem;
  color: var(--text-primary);
}

.cinema-track-info span {
  display: block;
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.scene-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.scene-chip {
  font-size: 0.82rem;
  color: var(--text-secondary);
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--bg-overlay);
  border: 1px solid var(--separator);
}

/* Platform Showcase Split Layout */
.platform-stage {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.85fr);
  gap: var(--space-7);
  align-items: start;
}

.platform-Stage-media {
  border-radius: var(--radius-panel);
  overflow: hidden;
  border: 1px solid var(--separator);
  background: #07080D;
  box-shadow: var(--shadow-raised);
}

.platform-stage-media {
  border-radius: var(--radius-panel);
  overflow: hidden;
  border: 1px solid var(--separator);
  background: #07080D;
  box-shadow: var(--shadow-raised);
  display: flex;
  align-items: center;
  justify-content: center;
}

.platform-stage-media.is-phone {
  padding: var(--space-6);
  background: radial-gradient(circle at 50% 35%, rgba(122, 140, 255, 0.16), #07080D 72%);
}

.platform-stage-media.is-phone img {
  max-height: 580px;
  width: auto;
  border-radius: 26px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.55);
}

.platform-details {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.platform-details h3 {
  margin: 0 0 var(--space-2);
  font-size: 1.45rem;
  font-weight: 650;
  letter-spacing: -0.015em;
}

.platform-details p {
  margin: 0;
  color: var(--text-secondary);
}

.feature-points {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.feature-points li {
  padding-top: var(--space-3);
  border-top: 1px solid var(--separator);
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.feature-points li strong {
  color: var(--text-primary);
  display: block;
  margin-bottom: 2px;
}

.thumb-strip {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.thumb-btn {
  appearance: none;
  min-height: 44px;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-control);
  border: 1px solid var(--separator);
  background: var(--bg-raised);
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.86rem;
  font-weight: 550;
  cursor: pointer;
  transition: transform 120ms ease, border-color 140ms ease, color 140ms ease;
}

.thumb-btn[aria-pressed="true"] {
  border-color: var(--accent);
  color: var(--text-primary);
  background: var(--bg-overlay);
}

.thumb-btn:active {
  transform: scale(0.97);
}

/* Live Skin Gallery Strip */
.skin-strip-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--space-4);
}

.skin-tile {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  border-radius: var(--radius-card);
  border: 1px solid var(--separator);
  background: var(--bg-raised);
  overflow: hidden;
  min-width: 0;
  transition: transform 140ms cubic-bezier(0.2, 0, 0, 1), border-color 150ms ease;
}

.skin-tile:active {
  transform: scale(0.98);
}

@media (hover: hover) and (pointer: fine) {
  .skin-tile:hover {
    border-color: var(--accent);
  }
}

.skin-tile-preview {
  aspect-ratio: 16 / 10;
  background: #08090E;
  border-bottom: 1px solid var(--separator);
  overflow: hidden;
}

.skin-tile-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.skin-tile-body {
  padding: var(--space-4);
  min-width: 0;
}

.skin-tile-body strong {
  display: block;
  font-size: 0.98rem;
  margin-bottom: var(--space-1);
  overflow-wrap: anywhere;
}

.skin-tile-body span {
  display: block;
  font-size: 0.86rem;
  color: var(--text-secondary);
  overflow-wrap: anywhere;
}

.skin-status-note {
  margin-top: var(--space-3);
  font-size: 0.88rem;
  color: var(--text-tertiary);
}

/* Editorial Architecture & Comfort Split */
.editorial-pair {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-8);
}

.editorial-col h3 {
  margin: 0 0 var(--space-3);
  font-size: 1.35rem;
  font-weight: 650;
  letter-spacing: -0.015em;
}

.editorial-col p {
  margin: 0 0 var(--space-4);
  color: var(--text-secondary);
}

/* Bottom Download Banner */
.closing-banner {
  margin: var(--space-9) 0;
  padding: var(--space-8);
  border-radius: var(--radius-panel);
  border: 1px solid var(--separator);
  background: var(--bg-raised);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}

.closing-banner h2 {
  margin: 0 0 var(--space-2);
  font-size: clamp(1.55rem, 2.6vw, 2.05rem);
  letter-spacing: -0.02em;
}

.closing-banner p {
  margin: 0;
  color: var(--text-secondary);
  max-width: 52ch;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--separator);
  padding: var(--space-8) 0 var(--space-9);
  color: var(--text-tertiary);
  font-size: 0.9rem;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer-links a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--text-secondary);
  text-decoration: none;
}

@media (hover: hover) and (pointer: fine) {
  .footer-links a:hover {
    color: var(--text-primary);
    text-decoration: underline;
  }
}

/* Legal & Support Pages */
.legal-shell {
  max-width: 780px;
  margin: 0 auto;
  padding: var(--space-9) var(--space-6) var(--space-10);
}

.back-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
  margin-bottom: var(--space-4);
}

.legal-shell h1 {
  margin: 0 0 var(--space-3);
  font-size: clamp(2rem, 3.6vw, 2.75rem);
  letter-spacing: -0.025em;
  line-height: 1.12;
}

.legal-updated {
  margin: 0 0 var(--space-7);
  color: var(--text-tertiary);
  font-size: 0.92rem;
}

.legal-shell h2 {
  margin: var(--space-8) 0 var(--space-3);
  font-size: 1.35rem;
  letter-spacing: -0.015em;
}

.legal-shell p,
.legal-shell li {
  color: var(--text-secondary);
}

.legal-shell ul {
  padding-left: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.support-callout {
  margin: var(--space-6) 0;
  padding: var(--space-5);
  border-radius: var(--radius-card);
  border: 1px solid var(--separator);
  background: var(--bg-raised);
}

.support-callout strong {
  display: block;
  color: var(--text-primary);
  margin-bottom: var(--space-1);
}

/* Responsive Breakpoints */
@media (max-width: 960px) {
  .hero-grid,
  .platform-stage,
  .editorial-pair {
    grid-template-columns: 1fr;
  }
  .nav-links {
    display: none;
  }
}

@media (max-width: 600px) {
  .container {
    padding: 0 var(--space-4);
  }
  .hero-section {
    padding: var(--space-6) 0;
  }
  .closing-banner {
    padding: var(--space-6);
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}