/* ==============================================================================
   SIAR Tactical Design System & Showcase Stylesheet
   Architecture: Part 01 - Product Showcase & Landing UI/UX
   Domain: siar.irshad.org.in
   ============================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;600;700&family=Outfit:wght@500;600;700;800;900&display=swap');

:root {
  /* Surface Tokens */
  --siar-bg-base: #07090e;
  --siar-bg-surface: #0e121b;
  --siar-bg-surface-elevated: #151b27;
  --siar-bg-glass: rgba(14, 18, 27, 0.82);
  --siar-bg-glass-heavy: rgba(7, 9, 14, 0.92);

  /* Primary Brand Accents */
  --siar-cyan-glow: #00f2fe;
  --siar-cyan-subtle: #4facfe;
  --siar-emerald-online: #10b981;
  --siar-amber-warning: #f59e0b;
  --siar-rose-critical: #f43f5e;
  --siar-violet-crypto: #8b5cf6;
  --siar-blue-quic: #3b82f6;

  /* Typography Colors */
  --siar-text-primary: #f8fafc;
  --siar-text-secondary: #94a3b8;
  --siar-text-muted: #64748b;
  --siar-text-dim: #475569;

  /* Borders & Shadows */
  --siar-border-subtle: rgba(255, 255, 255, 0.08);
  --siar-border-active: rgba(0, 242, 254, 0.4);
  --siar-border-strong: rgba(0, 242, 254, 0.8);
  --siar-glow-shadow: 0 0 25px rgba(0, 242, 254, 0.18);
  --siar-glow-shadow-lg: 0 0 50px rgba(0, 242, 254, 0.25);

  /* Typography Families */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', ui-monospace, monospace;
  --font-display: 'Outfit', 'Inter', sans-serif;

  /* Radius & Transition */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* OLED Pure-Black Mode */
body.oled-mode {
  --siar-bg-base: #000000;
  --siar-bg-surface: #050505;
  --siar-bg-surface-elevated: #0a0a0a;
  --siar-bg-glass: rgba(5, 5, 5, 0.95);
  --siar-border-subtle: rgba(255, 255, 255, 0.12);
}

/* High Contrast Mode */
body.high-contrast {
  --siar-text-secondary: #e2e8f0;
  --siar-text-muted: #cbd5e1;
  --siar-border-subtle: rgba(255, 255, 255, 0.25);
  --siar-border-active: #00f2fe;
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  color-scheme: dark;
  font-size: 16px;
}

body {
  background-color: var(--siar-bg-base);
  color: var(--siar-text-primary);
  font-family: var(--font-sans);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  background-image: 
    radial-gradient(circle at 50% 0%, rgba(0, 242, 254, 0.07) 0%, transparent 60%),
    radial-gradient(circle at 10% 40%, rgba(139, 92, 246, 0.05) 0%, transparent 50%),
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 48px 48px, 48px 48px;
  background-position: 0 0, 0 0, -1px -1px, -1px -1px;
}

/* RTL Layout Flip for Arabic */
html[dir="rtl"] {
  text-align: right;
}
html[dir="rtl"] .ticker-inner {
  animation-direction: reverse;
}
html[dir="rtl"] .hero-ctas,
html[dir="rtl"] .btn-group {
  flex-direction: row-reverse;
}

/* Container */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Top Telemetry Live Bar */
.telemetry-ticker {
  background: var(--siar-bg-surface);
  border-bottom: 1px solid var(--siar-border-subtle);
  padding: 8px 0;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--siar-text-secondary);
  overflow: hidden;
  white-space: nowrap;
}

.ticker-wrap {
  display: flex;
  overflow: hidden;
  position: relative;
}

.ticker-content {
  display: flex;
  gap: 32px;
  animation: tickerSlide 40s linear infinite;
}

.ticker-wrap:hover .ticker-content {
  animation-play-state: paused;
}

.ticker-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.ticker-label {
  color: var(--siar-text-muted);
  text-transform: uppercase;
  font-size: 0.72rem;
  letter-spacing: 0.5px;
}

.ticker-val {
  color: var(--siar-cyan-glow);
  font-weight: 600;
}

.ticker-pulse {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--siar-emerald-online);
  box-shadow: 0 0 8px var(--siar-emerald-online);
  animation: pulseGlow 1.8s infinite ease-in-out;
}

/* Navigation */
.header-nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--siar-bg-glass);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid var(--siar-border-subtle);
  transition: var(--transition-normal);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--siar-text-primary);
}

.brand-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, rgba(0, 242, 254, 0.2), rgba(139, 92, 246, 0.3));
  border: 1px solid var(--siar-cyan-glow);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 16px rgba(0, 242, 254, 0.25);
}

.brand-icon svg {
  width: 22px;
  height: 22px;
  fill: var(--siar-cyan-glow);
}

.brand-text {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.45rem;
  letter-spacing: 1.5px;
  background: linear-gradient(135deg, #ffffff 40%, var(--siar-cyan-glow) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-badge {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  padding: 2px 6px;
  border-radius: 4px;
  background: rgba(0, 242, 254, 0.12);
  color: var(--siar-cyan-glow);
  border: 1px solid rgba(0, 242, 254, 0.3);
  font-weight: 600;
  letter-spacing: 0.5px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
}

.nav-link {
  text-decoration: none;
  color: var(--siar-text-secondary);
  font-size: 0.92rem;
  font-weight: 500;
  transition: var(--transition-fast);
  padding: 6px 8px;
  border-radius: var(--radius-sm);
}

.nav-link:hover {
  color: var(--siar-cyan-glow);
  background: rgba(0, 242, 254, 0.05);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

/* Language & Accessibility Controls */
.control-dropdown {
  position: relative;
}

.select-control {
  background: var(--siar-bg-surface-elevated);
  border: 1px solid var(--siar-border-subtle);
  color: var(--siar-text-secondary);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  outline: none;
  cursor: pointer;
  transition: var(--transition-fast);
}

.select-control:hover, .select-control:focus {
  border-color: var(--siar-border-active);
  color: var(--siar-text-primary);
}

.btn-icon {
  background: var(--siar-bg-surface-elevated);
  border: 1px solid var(--siar-border-subtle);
  color: var(--siar-text-secondary);
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
}

.btn-icon:hover {
  border-color: var(--siar-cyan-glow);
  color: var(--siar-cyan-glow);
  box-shadow: 0 0 10px rgba(0, 242, 254, 0.2);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.3px;
  padding: 11px 22px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition-normal);
  border: 1px solid transparent;
}

.btn-primary {
  background: linear-gradient(135deg, var(--siar-cyan-glow), var(--siar-cyan-subtle));
  color: #050811;
  font-weight: 700;
  box-shadow: 0 0 20px rgba(0, 242, 254, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(0, 242, 254, 0.55);
}

.btn-secondary {
  background: var(--siar-bg-surface-elevated);
  color: var(--siar-text-primary);
  border: 1px solid var(--siar-border-subtle);
}

.btn-secondary:hover {
  border-color: var(--siar-border-active);
  background: rgba(0, 242, 254, 0.08);
  color: var(--siar-cyan-glow);
  transform: translateY(-2px);
}

.btn-accent {
  background: rgba(139, 92, 246, 0.15);
  color: #c4b5fd;
  border: 1px solid rgba(139, 92, 246, 0.4);
}

.btn-accent:hover {
  background: rgba(139, 92, 246, 0.3);
  border-color: #a78bfa;
  transform: translateY(-2px);
  box-shadow: 0 0 20px rgba(139, 92, 246, 0.3);
}

.btn-sm {
  padding: 6px 14px;
  font-size: 0.84rem;
}

.btn-lg {
  padding: 14px 28px;
  font-size: 1.05rem;
}

/* Glass Card */
.siar-glass-card {
  background: var(--siar-bg-glass);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border: 1px solid var(--siar-border-subtle);
  border-radius: var(--radius-lg);
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.siar-glass-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 242, 254, 0.3), transparent);
}

.siar-glass-card:hover {
  transform: translateY(-3px);
  border-color: var(--siar-border-active);
  box-shadow: 0 16px 36px -8px rgba(0, 242, 254, 0.12);
}

/* SECTION 1: HERO */
.hero-section {
  padding: 64px 0 80px;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 1.3fr;
  gap: 40px;
  align-items: center;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(0, 242, 254, 0.08);
  border: 1px solid rgba(0, 242, 254, 0.25);
  border-radius: 50px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--siar-cyan-glow);
  margin-bottom: 20px;
}

.hero-title {
  font-family: var(--font-display);
  font-size: 3.2rem;
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.5px;
  margin-bottom: 20px;
  background: linear-gradient(180deg, #ffffff 60%, #cbd5e1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-highlight {
  background: linear-gradient(135deg, var(--siar-cyan-glow), #38bdf8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--siar-text-secondary);
  line-height: 1.6;
  margin-bottom: 32px;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 32px;
}

.detected-os-badge {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 18px;
  background: var(--siar-bg-surface-elevated);
  border: 1px solid var(--siar-border-subtle);
  border-radius: var(--radius-md);
  font-size: 0.86rem;
  color: var(--siar-text-secondary);
}

.os-icon-badge {
  font-weight: 700;
  color: var(--siar-cyan-glow);
}

/* Live Interactive Canvas Visualizer Box */
.canvas-card {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  background: var(--siar-bg-surface);
  border: 1px solid var(--siar-border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
}

.canvas-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--siar-border-subtle);
}

.canvas-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--siar-text-primary);
  font-weight: 600;
}

.canvas-badge {
  padding: 2px 8px;
  border-radius: 4px;
  background: rgba(16, 185, 129, 0.12);
  color: var(--siar-emerald-online);
  border: 1px solid rgba(16, 185, 129, 0.3);
  font-size: 0.7rem;
}

.canvas-stats-row {
  display: flex;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.canvas-stat {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--siar-text-muted);
}

.canvas-stat span {
  color: var(--siar-text-secondary);
  font-weight: 600;
}

.canvas-container {
  width: 100%;
  height: 380px;
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #040609;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

#meshSimulationCanvas {
  width: 100%;
  height: 100%;
  display: block;
  cursor: crosshair;
}

.canvas-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--siar-border-subtle);
}

.canvas-actions {
  display: flex;
  gap: 8px;
}

.legend-row {
  display: flex;
  gap: 14px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 5px;
  color: var(--siar-text-muted);
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}
.dot-ble { background: var(--siar-cyan-glow); }
.dot-wifi { background: var(--siar-emerald-online); }
.dot-quic { background: var(--siar-blue-quic); }
.dot-dtn { background: var(--siar-amber-warning); }

/* Section Headers */
.section {
  padding: 96px 0;
  position: relative;
}

.section-head {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 56px;
}

.section-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--siar-cyan-glow);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 12px;
  display: block;
}

.section-title {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 16px;
  color: #ffffff;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--siar-text-secondary);
}

/* SECTION 2: CORE PILLARS */
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.pillar-card {
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.pillar-icon-box {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.icon-cyan {
  background: rgba(0, 242, 254, 0.1);
  color: var(--siar-cyan-glow);
  border-color: rgba(0, 242, 254, 0.3);
}

.icon-emerald {
  background: rgba(16, 185, 129, 0.1);
  color: var(--siar-emerald-online);
  border-color: rgba(16, 185, 129, 0.3);
}

.icon-violet {
  background: rgba(139, 92, 246, 0.1);
  color: var(--siar-violet-crypto);
  border-color: rgba(139, 92, 246, 0.3);
}

.icon-amber {
  background: rgba(245, 158, 11, 0.1);
  color: var(--siar-amber-warning);
  border-color: rgba(245, 158, 11, 0.3);
}

.pillar-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: #ffffff;
}

.pillar-text {
  font-size: 0.94rem;
  color: var(--siar-text-secondary);
  line-height: 1.6;
  margin-bottom: 20px;
  flex-grow: 1;
}

.pillar-spec-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--siar-text-muted);
  border-top: 1px solid var(--siar-border-subtle);
  padding-top: 14px;
}

/* SECTION 3: COMPARISON MATRIX */
.filter-tabs {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 32px;
}

.filter-btn {
  background: var(--siar-bg-surface-elevated);
  border: 1px solid var(--siar-border-subtle);
  color: var(--siar-text-secondary);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-fast);
}

.filter-btn.active, .filter-btn:hover {
  background: rgba(0, 242, 254, 0.12);
  border-color: var(--siar-cyan-glow);
  color: var(--siar-cyan-glow);
}

.matrix-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--siar-border-subtle);
  background: var(--siar-bg-surface);
}

.matrix-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.9rem;
}

.matrix-table th, .matrix-table td {
  padding: 16px 20px;
  border-bottom: 1px solid var(--siar-border-subtle);
}

.matrix-table th {
  background: var(--siar-bg-surface-elevated);
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--siar-text-primary);
  font-size: 0.95rem;
}

.matrix-table th.siar-col {
  background: rgba(0, 242, 254, 0.1);
  color: var(--siar-cyan-glow);
  border-left: 1px solid rgba(0, 242, 254, 0.3);
  border-right: 1px solid rgba(0, 242, 254, 0.3);
}

.matrix-table td.siar-cell {
  background: rgba(0, 242, 254, 0.04);
  font-weight: 600;
  color: #ffffff;
  border-left: 1px solid rgba(0, 242, 254, 0.2);
  border-right: 1px solid rgba(0, 242, 254, 0.2);
}

.check-yes {
  color: var(--siar-emerald-online);
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.check-no {
  color: var(--siar-rose-critical);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.check-partial {
  color: var(--siar-amber-warning);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* SECTION 4: MULTI-TRANSPORT & FAILOVER */
.transport-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 32px;
  align-items: center;
}

.transport-diagram-box {
  padding: 28px;
}

.transport-stack {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 24px;
}

.transport-layer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  border-radius: var(--radius-md);
  background: var(--siar-bg-surface-elevated);
  border: 1px solid var(--siar-border-subtle);
  transition: var(--transition-normal);
}

.transport-layer.active {
  border-color: var(--siar-cyan-glow);
  background: rgba(0, 242, 254, 0.08);
  box-shadow: 0 0 16px rgba(0, 242, 254, 0.15);
}

.transport-layer.degraded {
  border-color: var(--siar-amber-warning);
  background: rgba(245, 158, 11, 0.08);
}

.transport-layer.disabled {
  opacity: 0.4;
  border-color: var(--siar-rose-critical);
  background: rgba(244, 63, 94, 0.05);
}

.transport-name {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.92rem;
  display: flex;
  align-items: center;
  gap: 10px;
}

.transport-status-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 3px 8px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.06);
}

.sim-interactive-box {
  background: #04070c;
  border: 1px solid var(--siar-border-subtle);
  border-radius: var(--radius-md);
  padding: 20px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  min-height: 240px;
}

.sim-log-title {
  color: var(--siar-text-muted);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sim-log-body {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 220px;
  overflow-y: auto;
}

.sim-log-line {
  line-height: 1.4;
}

.log-time { color: var(--siar-text-muted); }
.log-info { color: var(--siar-cyan-glow); }
.log-warn { color: var(--siar-amber-warning); }
.log-err { color: var(--siar-rose-critical); }
.log-ok { color: var(--siar-emerald-online); }

/* SECTION 5: OPERATING MODES */
.modes-tabs {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 36px;
}

.mode-tab-btn {
  background: var(--siar-bg-surface-elevated);
  border: 1px solid var(--siar-border-subtle);
  color: var(--siar-text-secondary);
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: var(--transition-normal);
}

.mode-tab-btn.active {
  background: rgba(0, 242, 254, 0.12);
  border-color: var(--siar-cyan-glow);
  color: var(--siar-cyan-glow);
  box-shadow: 0 0 24px rgba(0, 242, 254, 0.2);
}

.mode-content {
  display: none;
}

.mode-content.active {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
  align-items: center;
}

.mode-preview-window {
  background: var(--siar-bg-surface);
  border: 1px solid var(--siar-border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.7);
}

.window-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: var(--siar-bg-surface-elevated);
  border-bottom: 1px solid var(--siar-border-subtle);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--siar-text-muted);
}

.window-dots {
  display: flex;
  gap: 6px;
}

.win-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.dot-red { background: #ff5f56; }
.dot-yellow { background: #ffbd2e; }
.dot-green { background: #27c93f; }

.chat-mock-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  height: 320px;
  background: #080b12;
  overflow-y: auto;
}

.chat-bubble {
  max-width: 80%;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  line-height: 1.4;
}

.bubble-received {
  align-self: flex-start;
  background: var(--siar-bg-surface-elevated);
  border: 1px solid var(--siar-border-subtle);
  color: var(--siar-text-primary);
}

.bubble-sent {
  align-self: flex-end;
  background: rgba(0, 242, 254, 0.15);
  border: 1px solid rgba(0, 242, 254, 0.4);
  color: #ffffff;
}

.chat-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--siar-text-muted);
  margin-top: 4px;
}

/* SECTION 6: IN-BROWSER WASM LAB */
.wasm-lab-card {
  padding: 36px;
  background: var(--siar-bg-surface);
}

.wasm-step-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.wasm-control-panel {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.wasm-block {
  padding: 20px;
  background: var(--siar-bg-surface-elevated);
  border: 1px solid var(--siar-border-subtle);
  border-radius: var(--radius-md);
}

.wasm-block-title {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--siar-cyan-glow);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.hex-inspector {
  background: #030509;
  border: 1px solid var(--siar-border-subtle);
  border-radius: var(--radius-md);
  padding: 16px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1.5;
  height: 280px;
  overflow-y: auto;
  color: #38bdf8;
}

.hex-row {
  display: flex;
  gap: 12px;
}

.hex-offset { color: var(--siar-text-muted); }
.hex-bytes { color: #f8fafc; }
.hex-ascii { color: var(--siar-emerald-online); }

/* SECTION 7: DOWNLOAD CENTER */
.download-tabs {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 36px;
}

.dl-tab-btn {
  background: var(--siar-bg-surface-elevated);
  border: 1px solid var(--siar-border-subtle);
  color: var(--siar-text-secondary);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 8px;
}

.dl-tab-btn.active, .dl-tab-btn:hover {
  background: rgba(0, 242, 254, 0.12);
  border-color: var(--siar-cyan-glow);
  color: var(--siar-cyan-glow);
}

.dl-panel {
  display: none;
}

.dl-panel.active {
  display: block;
}

.dl-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.dl-item-card {
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.dl-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.dl-card-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
}

.dl-meta-badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 2px 6px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 4px;
  color: var(--siar-text-muted);
}

.code-snippet-box {
  background: #04060a;
  border: 1px solid var(--siar-border-subtle);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--siar-cyan-glow);
  overflow-x: auto;
}

.copy-btn {
  background: transparent;
  border: none;
  color: var(--siar-text-muted);
  cursor: pointer;
  padding: 4px;
  transition: var(--transition-fast);
}

.copy-btn:hover {
  color: var(--siar-cyan-glow);
}

/* SECTION 8: DEVELOPER QUICKSTART */
.dev-terminal-card {
  background: #070a11;
  border: 1px solid var(--siar-border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.term-tabs {
  display: flex;
  background: var(--siar-bg-surface-elevated);
  border-bottom: 1px solid var(--siar-border-subtle);
  overflow-x: auto;
}

.term-tab {
  padding: 12px 20px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--siar-text-secondary);
  background: transparent;
  border: none;
  border-right: 1px solid var(--siar-border-subtle);
  cursor: pointer;
  transition: var(--transition-fast);
}

.term-tab.active {
  background: #070a11;
  color: var(--siar-cyan-glow);
  font-weight: 600;
}

.term-body {
  padding: 24px;
  font-family: var(--font-mono);
  font-size: 0.86rem;
  line-height: 1.6;
  color: #e2e8f0;
  overflow-x: auto;
}

pre code {
  font-family: var(--font-mono);
}

/* Code highlight tokens */
.token-kw { color: #f43f5e; font-weight: 600; }
.token-fn { color: #38bdf8; }
.token-str { color: #10b981; }
.token-com { color: #64748b; font-style: italic; }
.token-num { color: #f59e0b; }
.token-type { color: #a78bfa; }

/* FOOTER */
.site-footer {
  background: var(--siar-bg-surface);
  border-top: 1px solid var(--siar-border-subtle);
  padding: 64px 0 32px;
  margin-top: 64px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand p {
  color: var(--siar-text-secondary);
  font-size: 0.9rem;
  margin: 16px 0;
  max-width: 320px;
}

.footer-col-title {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 20px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  text-decoration: none;
  color: var(--siar-text-secondary);
  font-size: 0.88rem;
  transition: var(--transition-fast);
}

.footer-links a:hover {
  color: var(--siar-cyan-glow);
}

.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid var(--siar-border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.82rem;
  color: var(--siar-text-muted);
}

/* Modal */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.modal-backdrop.open {
  display: flex;
}

.modal-box {
  width: 100%;
  max-width: 640px;
  background: var(--siar-bg-surface);
  border: 1px solid var(--siar-border-active);
  border-radius: var(--radius-lg);
  padding: 32px;
  position: relative;
  box-shadow: 0 24px 60px rgba(0, 242, 254, 0.2);
}

.modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: transparent;
  border: none;
  color: var(--siar-text-muted);
  font-size: 1.5rem;
  cursor: pointer;
}

.modal-close:hover {
  color: #ffffff;
}

/* Animations */
@keyframes tickerSlide {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

@keyframes pulseGlow {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.2); }
}

/* Responsive Media Queries */
/* ==============================================================================
   Package Center & Repository Explorer Styles
   ============================================================================== */
.pkg-explorer-head {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 40px;
}

.pkg-filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
  background: var(--siar-bg-surface);
  border: 1px solid var(--siar-border-subtle);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
}

.pkg-search-wrap {
  flex: 1;
  min-width: 260px;
  position: relative;
}

.pkg-search-input {
  width: 100%;
  background: var(--siar-bg-surface-elevated);
  border: 1px solid var(--siar-border-subtle);
  border-radius: var(--radius-sm);
  padding: 10px 14px 10px 38px;
  color: var(--siar-text-primary);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  outline: none;
  transition: var(--transition-fast);
}

.pkg-search-input:focus {
  border-color: var(--siar-border-active);
  box-shadow: 0 0 12px rgba(0, 242, 254, 0.15);
}

.pkg-search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--siar-text-muted);
  pointer-events: none;
}

.pkg-eco-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.pkg-filter-btn {
  background: var(--siar-bg-surface-elevated);
  border: 1px solid var(--siar-border-subtle);
  color: var(--siar-text-secondary);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-fast);
}

.pkg-filter-btn.active, .pkg-filter-btn:hover {
  background: rgba(0, 242, 254, 0.12);
  border-color: var(--siar-cyan-glow);
  color: var(--siar-cyan-glow);
}

.pkg-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
  margin-bottom: 64px;
}

.pkg-card {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  height: 100%;
}

.pkg-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.pkg-format-badge {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
  background: rgba(0, 242, 254, 0.1);
  color: var(--siar-cyan-glow);
  border: 1px solid rgba(0, 242, 254, 0.3);
  display: inline-block;
  margin-bottom: 6px;
}

.pkg-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: #ffffff;
}

.pkg-arch-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 3px 8px;
  border-radius: 4px;
  background: var(--siar-bg-surface-elevated);
  border: 1px solid var(--siar-border-subtle);
  color: var(--siar-text-secondary);
}

.pkg-desc {
  font-size: 0.88rem;
  color: var(--siar-text-secondary);
  line-height: 1.5;
  flex-grow: 1;
}

.pkg-meta-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  background: var(--siar-bg-surface-elevated);
  border: 1px solid var(--siar-border-subtle);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-size: 0.78rem;
}

.pkg-meta-label {
  color: var(--siar-text-muted);
  font-family: var(--font-mono);
}

.pkg-cmd-box {
  background: #030508;
  border: 1px solid var(--siar-border-subtle);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--siar-cyan-glow);
  overflow-x: auto;
}

.pkg-actions {
  display: flex;
  gap: 10px;
}

/* Repository Specs Inspector Section */
.spec-viewer-box {
  background: var(--siar-bg-surface);
  border: 1px solid var(--siar-border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 64px;
}

.spec-tabs {
  display: flex;
  background: var(--siar-bg-surface-elevated);
  border-bottom: 1px solid var(--siar-border-subtle);
  overflow-x: auto;
}

.spec-tab-btn {
  padding: 14px 22px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--siar-text-secondary);
  background: transparent;
  border: none;
  border-right: 1px solid var(--siar-border-subtle);
  cursor: pointer;
  transition: var(--transition-fast);
}

.spec-tab-btn.active, .spec-tab-btn:hover {
  background: var(--siar-bg-surface);
  color: var(--siar-cyan-glow);
  font-weight: 600;
}

.spec-content-pre {
  padding: 24px;
  font-family: var(--font-mono);
  font-size: 0.84rem;
  line-height: 1.6;
  color: #e2e8f0;
  overflow-x: auto;
  margin: 0;
  background: #05070d;
}

/* Checksum Verifier Widget */
.verifier-card {
  padding: 32px;
  background: var(--siar-bg-surface);
  border: 1px solid var(--siar-border-subtle);
  border-radius: var(--radius-lg);
}

.verifier-input-group {
  display: flex;
  gap: 12px;
  margin: 20px 0;
}

.verifier-input {
  flex: 1;
  background: var(--siar-bg-surface-elevated);
  border: 1px solid var(--siar-border-subtle);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 0.84rem;
  color: #ffffff;
  outline: none;
}

.verifier-input:focus {
  border-color: var(--siar-cyan-glow);
}

.verifier-result {
  background: #04060b;
  border: 1px solid var(--siar-border-subtle);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  font-family: var(--font-mono);
  font-size: 0.84rem;
  min-height: 70px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* ==============================================================================
   Drag & Drop WebCrypto Verifier Styles (Part 03)
   ============================================================================== */
.dropzone-box {
  background: var(--siar-bg-surface);
  border: 2px dashed rgba(0, 242, 254, 0.35);
  border-radius: var(--radius-lg);
  padding: 48px 32px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition-normal);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 32px;
  position: relative;
  overflow: hidden;
}

.dropzone-box:hover, .dropzone-box.dropzone-active {
  border-color: var(--siar-cyan-glow);
  background: rgba(0, 242, 254, 0.05);
  box-shadow: 0 0 35px rgba(0, 242, 254, 0.15);
  transform: translateY(-2px);
}

.dropzone-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(0, 242, 254, 0.1);
  border: 1px solid rgba(0, 242, 254, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--siar-cyan-glow);
  font-size: 1.8rem;
  transition: var(--transition-normal);
}

.dropzone-box:hover .dropzone-icon {
  transform: scale(1.1);
  box-shadow: 0 0 20px rgba(0, 242, 254, 0.4);
}

.progress-wrap {
  width: 100%;
  height: 8px;
  background: var(--siar-bg-surface-elevated);
  border-radius: 4px;
  overflow: hidden;
  margin: 16px 0 8px;
  border: 1px solid var(--siar-border-subtle);
}

.progress-bar-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--siar-cyan-glow), var(--siar-emerald-online));
  transition: width 0.15s ease;
  box-shadow: 0 0 10px rgba(0, 242, 254, 0.5);
}

.prov-tabs {
  display: flex;
  background: var(--siar-bg-surface-elevated);
  border-bottom: 1px solid var(--siar-border-subtle);
  overflow-x: auto;
}

.prov-tab-btn {
  padding: 12px 20px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--siar-text-secondary);
  background: transparent;
  border: none;
  border-right: 1px solid var(--siar-border-subtle);
  cursor: pointer;
  transition: var(--transition-fast);
}

.prov-tab-btn.active, .prov-tab-btn:hover {
  background: var(--siar-bg-surface);
  color: var(--siar-cyan-glow);
  font-weight: 600;
}

/* ==============================================================================
   Developer Portal & API Hub Styles (Part 05)
   ============================================================================== */
.doc-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 40px;
  align-items: start;
  position: relative;
}

.doc-sidebar {
  position: sticky;
  top: 110px;
  background: var(--siar-bg-surface);
  border: 1px solid var(--siar-border-subtle);
  border-radius: var(--radius-lg);
  padding: 20px;
  max-height: calc(100vh - 140px);
  overflow-y: auto;
}

.doc-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.doc-nav-link {
  display: block;
  padding: 8px 12px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--siar-text-secondary);
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: var(--transition-fast);
}

.doc-nav-link:hover, .doc-nav-link.active {
  background: rgba(0, 242, 254, 0.1);
  color: var(--siar-cyan-glow);
  border-left: 2px solid var(--siar-cyan-glow);
}

.doc-search-box {
  position: relative;
  margin-bottom: 20px;
}

.doc-search-results {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: #030509;
  border: 1px solid var(--siar-border-active);
  border-radius: var(--radius-sm);
  box-shadow: 0 10px 30px rgba(0,0,0,0.8);
  z-index: 50;
  max-height: 280px;
  overflow-y: auto;
  display: none;
}

.doc-search-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--siar-border-subtle);
  text-decoration: none;
  transition: var(--transition-fast);
}

.doc-search-item:hover {
  background: rgba(0, 242, 254, 0.08);
}

.doc-search-item strong {
  color: var(--siar-cyan-glow);
  font-size: 0.84rem;
}

.doc-search-item span {
  color: var(--siar-text-muted);
  font-size: 0.75rem;
}

.doc-section {
  margin-bottom: 64px;
  scroll-margin-top: 120px;
}

.doc-method-card {
  background: var(--siar-bg-surface);
  border: 1px solid var(--siar-border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 24px;
}

.doc-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 3px 8px;
  border-radius: 4px;
  background: rgba(0, 242, 254, 0.1);
  color: var(--siar-cyan-glow);
  border: 1px solid rgba(0, 242, 254, 0.25);
}

.lang-tabs {
  display: flex;
  background: var(--siar-bg-surface-elevated);
  border-bottom: 1px solid var(--siar-border-subtle);
  overflow-x: auto;
}

.lang-tab-btn {
  padding: 10px 18px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--siar-text-secondary);
  background: transparent;
  border: none;
  border-right: 1px solid var(--siar-border-subtle);
  cursor: pointer;
  transition: var(--transition-fast);
}

.lang-tab-btn.active, .lang-tab-btn:hover {
  background: var(--siar-bg-surface);
  color: var(--siar-cyan-glow);
  font-weight: 600;
}

/* ==============================================================================
   Plugin Marketplace & Registry Styles (Part 06)
   ============================================================================== */
.plugin-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
  margin-bottom: 64px;
}

.plugin-card {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  height: 100%;
}

.plugin-card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.plugin-cat-tag {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
  background: rgba(0, 242, 254, 0.1);
  color: var(--siar-cyan-glow);
  border: 1px solid rgba(0, 242, 254, 0.25);
  display: inline-block;
  margin-bottom: 4px;
}

.plugin-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  color: #ffffff;
  margin: 0;
}

.plugin-author {
  font-size: 0.76rem;
  color: var(--siar-text-muted);
}

.rating-badge {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  color: #fbbf24;
  background: rgba(251, 191, 36, 0.1);
  border: 1px solid rgba(251, 191, 36, 0.3);
  padding: 2px 8px;
  border-radius: 4px;
}

.plugin-desc {
  font-size: 0.86rem;
  color: var(--siar-text-secondary);
  line-height: 1.5;
  flex-grow: 1;
}

.perm-tag-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 4px 0;
}

.perm-pill {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  background: var(--siar-bg-surface-elevated);
  border: 1px solid var(--siar-border-subtle);
  border-radius: 4px;
  padding: 2px 6px;
  color: var(--siar-text-secondary);
}

/* ==============================================================================
   CI/CD Release Pipeline Styles (Part 09)
   ============================================================================== */
.pipeline-stepper {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}

.pipeline-stage-card {
  background: var(--siar-bg-surface);
  border: 1px solid var(--siar-border-subtle);
  border-radius: var(--radius-md);
  padding: 16px;
  text-align: center;
  transition: var(--transition-normal);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.pipeline-stage-card.stage-active {
  border-color: var(--siar-cyan-glow);
  background: rgba(0, 242, 254, 0.08);
  box-shadow: 0 0 20px rgba(0, 242, 254, 0.25);
  transform: translateY(-2px);
}

.pipeline-stage-card.stage-complete {
  border-color: var(--siar-emerald-online);
  background: rgba(16, 185, 129, 0.05);
}

.stage-num {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--siar-bg-surface-elevated);
  border: 1px solid var(--siar-border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--siar-text-secondary);
}

.stage-active .stage-num {
  background: var(--siar-cyan-glow);
  color: #030508;
  border-color: var(--siar-cyan-glow);
}

.stage-complete .stage-num {
  background: var(--siar-emerald-online);
  color: #030508;
  border-color: var(--siar-emerald-online);
}

.stage-title {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: #ffffff;
  font-weight: 600;
}

.stage-desc {
  font-size: 0.7rem;
  color: var(--siar-text-muted);
}

/* ==============================================================================
   Mobile Navigation Drawer & Floating Thumb Dock Styles
   ============================================================================== */

/* Hamburger Button */
.mobile-menu-btn {
  display: none;
  background: transparent;
  border: 1px solid var(--siar-border-subtle);
  border-radius: var(--radius-sm);
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  color: var(--siar-text-primary);
  cursor: pointer;
  padding: 0;
  transition: var(--transition-fast);
  z-index: 1001;
}

.mobile-menu-btn:hover,
.mobile-menu-btn:focus-visible {
  border-color: var(--siar-cyan-glow);
  background: rgba(0, 242, 254, 0.08);
}

.mobile-menu-btn svg {
  width: 22px;
  height: 22px;
  transition: transform var(--transition-normal);
}

.mobile-menu-btn.active svg {
  transform: rotate(90deg);
}

/* Mobile Drawer Overlay */
.mobile-drawer-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(3, 5, 8, 0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.mobile-drawer-overlay.open {
  opacity: 1;
  visibility: visible;
}

/* Slide-In Mobile Navigation Drawer */
.mobile-nav-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(85vw, 360px);
  background: var(--siar-bg-surface-elevated);
  border-left: 1px solid var(--siar-border-subtle);
  box-shadow: -10px 0 40px rgba(0, 0, 0, 0.6);
  z-index: 2001;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform var(--transition-smooth);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: 24px 20px calc(24px + env(safe-area-inset-bottom, 0px));
}

.mobile-nav-drawer.open {
  transform: translateX(0);
}

.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 16px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--siar-border-subtle);
}

.drawer-links-group {
  margin-bottom: 24px;
}

.drawer-group-title {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--siar-text-muted);
  margin-bottom: 10px;
  padding-left: 8px;
}

.drawer-nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: var(--radius-md);
  color: var(--siar-text-secondary);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  transition: var(--transition-fast);
  margin-bottom: 4px;
}

.drawer-nav-link:hover,
.drawer-nav-link.active {
  background: rgba(0, 242, 254, 0.08);
  color: #ffffff;
  border-left: 3px solid var(--siar-cyan-glow);
}

.drawer-nav-link .link-icon {
  font-size: 1.1rem;
  width: 24px;
  text-align: center;
}

/* Floating Mobile Bottom Thumb-Dock */
.mobile-bottom-dock {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: calc(60px + env(safe-area-inset-bottom, 0px));
  padding-bottom: env(safe-area-inset-bottom, 0px);
  background: var(--siar-bg-glass-heavy);
  backdrop-filter: blur(20px) saturate(190%);
  -webkit-backdrop-filter: blur(20px) saturate(190%);
  border-top: 1px solid var(--siar-border-subtle);
  z-index: 1500;
  align-items: center;
  justify-content: space-around;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.4);
}

.dock-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  text-decoration: none;
  color: var(--siar-text-muted);
  font-size: 0.68rem;
  font-family: var(--font-mono);
  font-weight: 600;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
  touch-action: manipulation;
}

.dock-item svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
  transition: transform var(--transition-fast);
}

.dock-item:active svg {
  transform: scale(0.9);
}

.dock-item.active,
.dock-item:hover {
  color: var(--siar-cyan-glow);
}

.dock-item.active svg {
  filter: drop-shadow(0 0 8px var(--siar-cyan-glow));
}

/* Smooth Horizontal Touch Scroll Containers */
.touch-scroll-x {
  display: flex;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
  gap: 12px;
  padding-bottom: 8px;
}

.touch-scroll-x::-webkit-scrollbar {
  height: 4px;
}

.touch-scroll-x::-webkit-scrollbar-thumb {
  background: var(--siar-border-subtle);
  border-radius: 4px;
}

/* Responsive Breakpoints & Refinements */
@media (max-width: 1024px) {
  .doc-layout {
    grid-template-columns: 1fr;
  }
  .doc-sidebar {
    display: none;
  }
  .mobile-menu-btn {
    display: flex;
  }
  .nav-links {
    display: none;
  }
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .hero-title {
    font-size: clamp(2rem, 5vw, 2.8rem);
  }
  .transport-grid,
  .mode-content.active,
  .wasm-step-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  body {
    padding-bottom: calc(64px + env(safe-area-inset-bottom, 0px));
  }
  .mobile-bottom-dock {
    display: flex;
  }
  .container {
    padding: 0 16px;
  }
  .header-nav .btn {
    display: none;
  }
  .hero-title {
    font-size: clamp(1.85rem, 6.5vw, 2.3rem);
    line-height: 1.25;
  }
  .hero-subtitle {
    font-size: 0.92rem;
  }
  .hero-ctas {
    flex-direction: column;
    width: 100%;
  }
  .hero-ctas .btn {
    width: 100%;
    justify-content: center;
    min-height: 48px;
  }
  .section-title {
    font-size: clamp(1.45rem, 5vw, 1.8rem);
  }
  .canvas-card {
    height: auto;
    min-height: 380px;
  }
  .canvas-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  .canvas-controls {
    width: 100%;
    flex-wrap: wrap;
  }
  .canvas-controls .btn {
    flex: 1;
    min-height: 38px;
    font-size: 0.74rem;
  }
  .pillars-grid,
  .pkg-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}