/* Website layout refinement R3.1.
   Production navigation, footer, and body foundations remain owned by style.css. */

html:has(body.r3-page) {
  scroll-padding-top: 120px;
}

body.r3-page {
  --lb-r3-cyan: var(--electric-cyan, #2de9ff);
  --lb-r3-gold: var(--gold-light, #e8c56a);
  --lb-r3-green: #b8ff3c;
  --lb-r3-text: var(--text, #f5f2ea);
  --lb-r3-muted: var(--muted, rgba(245, 242, 234, 0.68));
  --lb-r3-subtle: rgba(245, 242, 234, 0.48);
  --lb-r3-panel: rgba(12, 8, 22, 0.88);
  --lb-r3-panel-soft: rgba(18, 12, 30, 0.72);
  --lb-r3-border: var(--border, rgba(244, 240, 255, 0.1));
  --lb-r3-border-strong: rgba(244, 240, 255, 0.17);
  --lb-r3-radius: 12px;
  --lb-r3-radius-lg: 18px;
  --lb-r3-touch: 44px;
  --lb-r3-section: clamp(3rem, 5vw, 4.5rem);
}

body.r3-page [id] {
  scroll-margin-top: 120px;
}

body.r3-page .r3-section {
  padding: var(--lb-r3-section) 0;
}

body.r3-page .r3-section.tight {
  padding: calc(var(--lb-r3-section) * 0.7) 0;
}

body.r3-page .r3-section.alt {
  background: rgba(10, 6, 20, 0.55);
  border-block: 1px solid var(--lb-r3-border);
}

body.r3-page .section-head {
  max-width: 46rem;
  margin-bottom: 1.75rem;
}

body.r3-page .section-head .lead {
  margin-top: 0.4rem;
}

body.r3-page .muted {
  color: var(--lb-r3-muted);
}

body.r3-page .subtle {
  color: var(--lb-r3-subtle);
  font-size: 0.92rem;
}

body.r3-page .hero-grid,
body.r3-page .section-split,
body.r3-page .spotlight,
body.r3-page .split-2,
body.r3-page .platform-grid {
  display: grid;
  gap: clamp(1.4rem, 3.5vw, 3rem);
  align-items: start;
}

body.r3-page .hero-grid {
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.12fr);
  align-items: center;
}

body.r3-page .section-split {
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
}

body.r3-page .section-split.narrow-left {
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
}

body.r3-page .split-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

body.r3-page .hero-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 1.1rem 0 0;
  color: var(--lb-r3-subtle);
  font-family: var(--font-mono, ui-monospace, monospace);
  font-size: 0.82rem;
}

body.r3-page .status-dot {
  width: 8px;
  height: 8px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--lb-r3-green);
  box-shadow: 0 0 8px rgba(184, 255, 60, 0.65);
}

body.r3-page .legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.1rem;
  margin-top: 1.15rem;
  color: var(--lb-r3-muted);
  font-size: 0.85rem;
}

body.r3-page .legend-item {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

body.r3-page .legend-swatch {
  width: 10px;
  height: 10px;
  flex: 0 0 auto;
  border-radius: 3px;
}

body.r3-page .sw-live { background: var(--lb-r3-green); }
body.r3-page .sw-early { background: var(--lb-r3-cyan); }
body.r3-page .sw-preview { border: 1px solid var(--lb-r3-cyan); }
body.r3-page .sw-planned { border: 1px solid var(--lb-r3-gold); }

body.r3-page .app-window {
  position: relative;
  overflow: hidden;
  margin: 0;
  border: 1px solid rgba(244, 240, 255, 0.15);
  border-radius: var(--lb-r3-radius-lg);
  background: #0b0b10;
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.58), 0 0 0 1px rgba(45, 233, 255, 0.08);
}

body.r3-page .app-window-chrome {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 0.75rem;
  border-bottom: 1px solid var(--lb-r3-border);
  background: linear-gradient(180deg, #1a1424, #100c18);
}

body.r3-page .app-window-dots {
  display: flex;
  gap: 0.35rem;
}

body.r3-page .app-window-dots span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: rgba(245, 242, 234, 0.23);
}

body.r3-page .app-window-title {
  margin-left: 0.35rem;
  color: var(--lb-r3-subtle);
  font-family: var(--font-mono, ui-monospace, monospace);
  font-size: 0.7rem;
}

body.r3-page .app-window img {
  display: block;
  width: 100%;
  height: auto;
}

body.r3-page .app-window figcaption {
  margin: 0;
  padding: 0.55rem 0.75rem;
  border-top: 1px solid var(--lb-r3-border);
  color: var(--lb-r3-subtle);
  background: rgba(5, 5, 8, 0.65);
  font-family: var(--font-mono, ui-monospace, monospace);
  font-size: 0.7rem;
}

body.r3-page .spotlight {
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  align-items: center;
  padding: clamp(1.5rem, 3vw, 2.5rem);
  border: 1px solid var(--lb-r3-border-strong);
  border-radius: var(--lb-r3-radius-lg);
  background: linear-gradient(135deg, rgba(45, 233, 255, 0.05), rgba(255, 43, 214, 0.04));
}

body.r3-page .cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

body.r3-page .cards.flow-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

body.r3-page .cards > .card,
body.r3-page .panel {
  min-height: 100%;
  padding: 1.35rem;
  border: 1px solid var(--lb-r3-border);
  border-radius: var(--lb-r3-radius);
  background: var(--lb-r3-panel);
}

body.r3-page .cards > .card {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

body.r3-page .cards > .card p {
  flex: 1;
  margin: 0;
}

body.r3-page .card.feature-live,
body.r3-page .panel.current {
  border-color: rgba(184, 255, 60, 0.28);
}

body.r3-page .panel.planned {
  border-color: rgba(232, 197, 106, 0.28);
}

body.r3-page .panel-eyebrow,
body.r3-page .step-num {
  color: var(--lb-r3-subtle);
  font-family: var(--font-mono, ui-monospace, monospace);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

body.r3-page .step-num {
  color: var(--lb-r3-cyan);
}

body.r3-page .badge {
  display: inline-flex;
  width: fit-content;
  align-items: center;
  padding: 0.28rem 0.58rem;
  border: 1px solid var(--lb-r3-border);
  border-radius: 999px;
  font-family: var(--font-mono, ui-monospace, monospace);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

body.r3-page .badge-live {
  border-color: transparent;
  color: #050508;
  background: var(--lb-r3-green);
}

body.r3-page .badge-early {
  border-color: transparent;
  color: #050508;
  background: var(--lb-r3-cyan);
}

body.r3-page .badge-planned {
  border-color: rgba(232, 197, 106, 0.42);
  color: var(--lb-r3-gold);
}

body.r3-page .badge-preview {
  border-color: rgba(45, 233, 255, 0.42);
  color: var(--lb-r3-cyan);
}

body.r3-page .badge-soon {
  color: var(--lb-r3-muted);
}

body.r3-page .list-check {
  display: grid;
  gap: 0.6rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

body.r3-page .list-check li {
  display: flex;
  gap: 0.6rem;
  color: var(--lb-r3-muted);
}

body.r3-page .list-check li::before {
  content: "▸";
  flex: 0 0 auto;
  color: var(--lb-r3-cyan);
  font-family: var(--font-mono, ui-monospace, monospace);
}

body.r3-page .list-clean {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--lb-r3-muted);
}

body.r3-page .list-clean li {
  margin: 0.45rem 0;
}

body.r3-page .roadmap {
  display: grid;
  gap: 0;
  margin-left: 0.4rem;
  padding-left: 1.5rem;
  border-left: 2px solid var(--lb-r3-border-strong);
}

body.r3-page .roadmap-item {
  position: relative;
  padding: 0 0 1.5rem;
}

body.r3-page .roadmap-item:last-child {
  padding-bottom: 0;
}

body.r3-page .roadmap-item::before {
  content: "";
  position: absolute;
  top: 0.35rem;
  left: calc(-1.5rem - 6px);
  width: 11px;
  height: 11px;
  border: 2px solid var(--lb-r3-subtle);
  border-radius: 50%;
  background: #050508;
}

body.r3-page .roadmap-item.now::before {
  border-color: var(--lb-r3-green);
  background: var(--lb-r3-green);
  box-shadow: 0 0 10px rgba(184, 255, 60, 0.5);
}

body.r3-page .roadmap-item.early::before {
  border-color: var(--lb-r3-cyan);
  background: var(--lb-r3-cyan);
}

body.r3-page .roadmap-item.next::before {
  border-color: var(--lb-r3-gold);
}

body.r3-page .roadmap-item h3,
body.r3-page .roadmap-item p {
  margin: 0 0 0.25rem;
}

body.r3-page .roadmap-item p {
  color: var(--lb-r3-muted);
}

body.r3-page .roadmap-phase {
  display: block;
  margin-bottom: 0.15rem;
  color: var(--lb-r3-subtle);
  font-family: var(--font-mono, ui-monospace, monospace);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

body.r3-page .final-cta {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) auto;
  gap: 1.5rem;
  align-items: center;
  padding: clamp(1.75rem, 3vw, 2.5rem);
  border: 1px solid rgba(45, 233, 255, 0.28);
  border-radius: var(--lb-r3-radius-lg);
  background: radial-gradient(ellipse 60% 100% at 100% 0%, rgba(255, 43, 214, 0.08), transparent 60%), rgba(45, 233, 255, 0.045);
}

body.r3-page .final-cta .actions {
  justify-content: flex-end;
  margin: 0;
}

body.r3-page .btn-download {
  border-color: transparent;
  color: #050508;
  background: var(--lb-r3-green);
}

body.r3-page .text-link {
  display: inline-flex;
  min-height: var(--lb-r3-touch);
  align-items: center;
  color: var(--lb-r3-muted);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

body.r3-page .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-items: center;
  margin-bottom: 1rem;
  color: var(--lb-r3-subtle);
  font-size: 0.9rem;
}

body.r3-page .breadcrumb a {
  color: var(--lb-r3-muted);
}

body.r3-page .subnav-wrap {
  position: sticky;
  top: 76px;
  z-index: 30;
  border-bottom: 1px solid var(--lb-r3-border);
  background: rgba(5, 5, 8, 0.92);
  backdrop-filter: blur(10px);
}

body.r3-page .subnav {
  display: flex;
  gap: 0.25rem;
  overflow-x: auto;
  padding: 0.5rem 0;
  scrollbar-width: thin;
}

body.r3-page .subnav a {
  display: inline-flex;
  min-height: var(--lb-r3-touch);
  align-items: center;
  padding: 0.55rem 0.75rem;
  border-radius: 999px;
  color: var(--lb-r3-muted);
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
}

body.r3-page .subnav a:hover {
  color: var(--lb-r3-text);
  background: rgba(255, 255, 255, 0.05);
}

body.r3-page .cjk-clause {
  display: block;
}

body.r3-page h1:has(.cjk-clause) {
  font-size: clamp(1.9rem, 3.4vw, 2.55rem);
  line-height: 1.3;
  text-wrap: initial;
}

body.r3-page .recommend {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1.5rem;
  align-items: center;
  padding: clamp(1.5rem, 3vw, 2rem);
  border: 1px solid rgba(184, 255, 60, 0.3);
  border-radius: var(--lb-r3-radius-lg);
  background: radial-gradient(ellipse 70% 120% at 0 0, rgba(184, 255, 60, 0.08), transparent 55%), var(--lb-r3-panel);
}

body.r3-page .recommend.is-mac {
  border-color: rgba(232, 197, 106, 0.34);
}

body.r3-page .recommend-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 0.5rem;
  color: var(--lb-r3-green);
  font-family: var(--font-mono, ui-monospace, monospace);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

body.r3-page .recommend.is-mac .recommend-label {
  color: var(--lb-r3-gold);
}

body.r3-page .recommend-action {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  align-items: stretch;
  text-align: center;
}

body.r3-page .meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  margin: 0.65rem 0 0;
  color: var(--lb-r3-subtle);
  font-family: var(--font-mono, ui-monospace, monospace);
  font-size: 0.8rem;
}

body.r3-page .meta-chip {
  padding: 0.22rem 0.5rem;
  border: 1px solid var(--lb-r3-border);
  border-radius: 6px;
  color: var(--lb-r3-muted);
}

body.r3-page .sha {
  color: var(--lb-r3-subtle);
  font-family: var(--font-mono, ui-monospace, monospace);
  font-size: 0.75rem;
  word-break: break-all;
}

body.r3-page .platform-chooser {
  padding: 1.4rem;
  border: 1px solid var(--lb-r3-border);
  border-radius: var(--lb-r3-radius);
  background: var(--lb-r3-panel);
}

body.r3-page .platform-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

body.r3-page .platform-tab {
  display: inline-flex;
  min-height: var(--lb-r3-touch);
  align-items: center;
  gap: 0.4rem;
  padding: 0.55rem 0.95rem;
  border: 1px solid var(--lb-r3-border-strong);
  border-radius: var(--lb-r3-radius);
  color: var(--lb-r3-muted);
  background: transparent;
  font: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
}

body.r3-page .platform-tab:focus {
  outline: none;
}

body.r3-page .platform-tab:focus-visible {
  outline: 2px solid rgba(214, 175, 85, 0.85);
  outline-offset: 3px;
}

body.r3-page a.btn:focus-visible,
body.r3-page a.text-link:focus-visible,
body.r3-page .recommend-action a:focus-visible {
  outline: 2px solid rgba(214, 175, 85, 0.85);
  outline-offset: 3px;
}

body.r3-page .platform-tab .tab-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--lb-r3-subtle);
}

body.r3-page .platform-tab[data-avail="true"] .tab-dot {
  background: var(--lb-r3-green);
}

body.r3-page .platform-tab[aria-selected="true"] {
  border-color: transparent;
  color: #050508;
  background: var(--lb-r3-cyan);
}

body.r3-page .platform-tab[aria-selected="true"] .tab-dot {
  background: rgba(5, 5, 8, 0.55);
}

body.r3-page .platform-panel[hidden] {
  display: none;
}

body.r3-page .platform-grid {
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: 1.25rem;
}

body.r3-page .status-text {
  margin: 0.35rem 0 0.75rem;
  color: var(--lb-r3-subtle);
  font-family: var(--font-mono, ui-monospace, monospace);
  font-size: 0.8rem;
}

body.r3-page .status-text.available { color: var(--lb-r3-green); }
body.r3-page .status-text.soon { color: var(--lb-r3-gold); }

body.r3-page .help-callout {
  margin-top: 1rem;
  padding: 0.9rem 1rem;
  border-left: 2px solid rgba(232, 197, 106, 0.45);
  border-radius: 0 8px 8px 0;
  color: var(--lb-r3-muted);
  background: rgba(232, 197, 106, 0.04);
}

body.r3-page .trust-list {
  display: grid;
  gap: 0.7rem;
}

body.r3-page .trust-item {
  display: flex;
  gap: 0.6rem;
  align-items: flex-start;
}

body.r3-page .trust-ico {
  flex: 0 0 auto;
  color: var(--lb-r3-cyan);
  font-family: var(--font-mono, ui-monospace, monospace);
}

body.r3-page .faq details {
  margin-bottom: 0.6rem;
  padding: 0.9rem 1.1rem;
  border: 1px solid var(--lb-r3-border);
  border-radius: var(--lb-r3-radius);
  background: var(--lb-r3-panel-soft);
}

body.r3-page .faq summary {
  display: flex;
  min-height: var(--lb-r3-touch);
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-family: var(--font-head, sans-serif);
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}

body.r3-page .faq summary::-webkit-details-marker { display: none; }
body.r3-page .faq summary::after { content: "+"; color: var(--lb-r3-cyan); }
body.r3-page .faq details[open] summary::after { content: "−"; }
body.r3-page .faq details p { margin: 0.6rem 0 0; color: var(--lb-r3-muted); }

@media (max-width: 960px) {
  body.r3-page .hero-grid,
  body.r3-page .section-split,
  body.r3-page .section-split.narrow-left,
  body.r3-page .spotlight,
  body.r3-page .split-2,
  body.r3-page .cards,
  body.r3-page .cards.flow-4,
  body.r3-page .final-cta,
  body.r3-page .recommend,
  body.r3-page .platform-grid {
    grid-template-columns: 1fr;
  }

  body.r3-page .hero-grid .app-window {
    order: -1;
  }

  body.r3-page .final-cta .actions {
    justify-content: flex-start;
  }

  body.r3-page .recommend-action {
    align-items: flex-start;
  }

  body.r3-page .subnav-wrap {
    top: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  html:has(body.r3-page) {
    scroll-behavior: auto;
  }

  body.r3-page *,
  body.r3-page *::before,
  body.r3-page *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}