/* ==========================================================================
   FOQ - STYLESHEET (Cyber-Minimalist / Brutalist Design System)
   Inspired by typesafe.ai with high-performance local AI engineering aesthetics
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Host+Grotesk:ital,wght@0,300..800;1,300..800&family=JetBrains+Mono:ital,wght@0,300..700;1,300..700&family=Space+Mono:ital,wght@0,400;0,700;1,400;1,700&display=swap');

:root {
  /* Color Palette: Default (Electric Amber / Cyber Void) */
  --bg-primary: #090a0f;
  --bg-surface: #0f121a;
  --bg-surface-elevated: #151924;
  --bg-surface-muted: #1a1f2e;
  
  --border-color: #242b3d;
  --border-subtle: #191f2d;
  --border-focus: #f59e0b;
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-inverse: #090a0f;
  
  --accent: #f59e0b;          /* Electric Amber */
  --accent-secondary: #fbbf24;
  --accent-glow: rgba(245, 158, 11, 0.15);
  
  --success: #10b981;         /* Cyber Emerald */
  --success-glow: rgba(16, 185, 129, 0.15);
  --cyan: #06b6d4;
  --danger: #ef4444;
  
  --font-mono: 'JetBrains Mono', 'Space Mono', monospace;
  --font-sans: 'Host Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  
  --site-max-width: 1280px;
  --radius-sm: 2px;
  --radius-md: 4px;
}

/* Light Theme (Laboratory Paper) */
[data-theme="light"] {
  --bg-primary: #fcfcfd;
  --bg-surface: #f4f5f8;
  --bg-surface-elevated: #eaecf1;
  --bg-surface-muted: #e2e5eb;
  
  --border-color: #d1d5db;
  --border-subtle: #e5e7eb;
  --border-focus: #d97706;
  
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-inverse: #ffffff;
  
  --accent: #d97706;
  --accent-secondary: #b45309;
  --accent-glow: rgba(217, 119, 6, 0.12);
  
  --success: #059669;
  --success-glow: rgba(5, 150, 105, 0.12);
  --cyan: #0891b2;
  --danger: #dc2626;
}

/* Color Accent Variations */
[data-accent="emerald"] {
  --accent: #10b981;
  --accent-secondary: #34d399;
  --accent-glow: rgba(16, 185, 129, 0.18);
  --border-focus: #10b981;
}

[data-accent="cyan"] {
  --accent: #06b6d4;
  --accent-secondary: #38bdf8;
  --accent-glow: rgba(6, 182, 212, 0.18);
  --border-focus: #06b6d4;
}

[data-accent="magenta"] {
  --accent: #ec4899;
  --accent-secondary: #f472b6;
  --accent-glow: rgba(236, 72, 153, 0.18);
  --border-focus: #ec4899;
}

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

html {
  scroll-behavior: auto;
  font-size: 14px;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
}

body {
  overflow-x: hidden;
  line-height: 1.5;
  background-color: var(--bg-primary);
}

::selection {
  background: var(--accent);
  color: var(--text-inverse);
}

/* Technical Grid Lines & Utilities */
.technical-border {
  border: 1px solid var(--border-color);
}

.technical-border-b {
  border-bottom: 1px solid var(--border-color);
}

.technical-border-t {
  border-top: 1px solid var(--border-color);
}

.mono {
  font-family: var(--font-mono);
}

.container {
  max-width: var(--site-max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* -------------------------------------------------------------
   NAVIGATION & HEADER
   ------------------------------------------------------------- */
.top-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(9, 10, 15, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
}

[data-theme="light"] .top-nav {
  background: rgba(252, 252, 253, 0.9);
}

.nav-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

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

.logo-symbol {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.1rem;
  background: var(--accent);
  color: var(--text-inverse);
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  letter-spacing: -0.5px;
}

.logo-title {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.5px;
}

.logo-tag {
  font-size: 0.7rem;
  padding: 2px 6px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  font-family: var(--font-mono);
  white-space: nowrap;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 14px;
  list-style: none;
  flex-wrap: nowrap;
}

.nav-link {
  text-decoration: none;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  white-space: nowrap;
  transition: color 0.15s;
}

.nav-link:hover {
  color: var(--accent);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--accent);
  color: var(--text-inverse);
  border-color: var(--accent);
}

.btn-primary:hover {
  background: var(--accent-secondary);
  box-shadow: 0 0 15px var(--accent-glow);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--border-color);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--bg-surface);
}

.btn-sm {
  padding: 4px 8px;
  font-size: 0.75rem;
}

/* Palette and Theme Toggle */
.theme-selector {
  display: flex;
  align-items: center;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 2px 4px;
}

.color-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 1px solid var(--border-color);
  margin: 0 3px;
  cursor: pointer;
  transition: transform 0.15s;
}

.color-dot:hover {
  transform: scale(1.2);
}

.color-amber { background: #f59e0b; }
.color-emerald { background: #10b981; }
.color-cyan { background: #06b6d4; }
.color-magenta { background: #ec4899; }

.theme-toggle-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 4px 6px;
  display: flex;
  align-items: center;
  font-size: 0.85rem;
}

.theme-toggle-btn:hover {
  color: var(--accent);
}

/* Language Selector */
.lang-selector {
  display: flex;
  align-items: center;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 2px 6px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  gap: 4px;
}

.lang-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-family: inherit;
  font-size: inherit;
  font-weight: 600;
  padding: 2px 4px;
  transition: color 0.15s;
}

.lang-btn:hover {
  color: var(--accent);
}

.lang-btn.active {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 2px;
}

.lang-sep {
  color: var(--border-color);
  user-select: none;
}

/* -------------------------------------------------------------
   SYSTEM STATUS BANNER (Telemetry Bar)
   ------------------------------------------------------------- */
.telemetry-bar {
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
  padding: 6px 0;
}

.telemetry-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.telemetry-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.status-indicator {
  display: inline-block;
  width: 7px;
  height: 7px;
  background: var(--success);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--success);
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0% { opacity: 0.7; transform: scale(0.9); }
  50% { opacity: 1; transform: scale(1.2); }
  100% { opacity: 0.7; transform: scale(0.9); }
}

/* -------------------------------------------------------------
   HERO SECTION
   ------------------------------------------------------------- */
.hero-section {
  padding: 60px 0 40px;
  border-bottom: 1px solid var(--border-color);
  position: relative;
}

.hero-header-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  background: var(--accent-glow);
  border: 1px solid var(--accent);
  padding: 4px 10px;
  margin-bottom: 24px;
  letter-spacing: 0.5px;
}

.hero-title {
  font-size: clamp(2.4rem, 5vw, 4.2rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -1.5px;
  margin-bottom: 20px;
  text-transform: uppercase;
}

.hero-title .highlight {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-thickness: 3px;
  text-underline-offset: 6px;
}

.hero-subtitle {
  font-size: 1.25rem;
  line-height: 1.6;
  color: var(--text-secondary);
  max-width: 820px;
  margin-bottom: 36px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.install-command {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-primary);
}

.install-command .copy-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
}

.install-command .copy-btn:hover {
  color: var(--accent);
}

/* -------------------------------------------------------------
   SIGNATURE WIDGETS GRID (Game of Life Glider + Evolution Timeline)
   ------------------------------------------------------------- */
.widgets-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 30px;
}

.widget-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  overflow: hidden;
  display: flex;
  flex-flow: column;
}

.widget-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: var(--bg-surface-elevated);
  border-bottom: 1px solid var(--border-color);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.widget-header-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  color: var(--text-primary);
}

.widget-body {
  padding: 16px;
  flex: 1;
}

/* Launch Film small video window (Game of Life slot) */
.video-window {
  position: relative;
  width: 100%;
  height: 200px;
  background: #06070a;
  border: 1px solid var(--border-subtle);
  overflow: hidden;
}

.video-window video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #06070a;
}

/* Canvas Glider Conway's Game of Life */
.glider-canvas-container {
  position: relative;
  width: 100%;
  height: 200px;
  background: #06070a;
  border: 1px solid var(--border-subtle);
  overflow: hidden;
}

[data-theme="light"] .glider-canvas-container {
  background: #f1f3f7;
}

#gliderCanvas {
  display: block;
  width: 100%;
  height: 100%;
}

.glider-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.glider-actions {
  display: flex;
  gap: 6px;
}

/* Evolution Paradigm Timeline */
.paradigm-timeline {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.paradigm-step {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  transition: all 0.2s;
}

.paradigm-step.active-step {
  background: var(--accent-glow);
  border-color: var(--accent);
  color: var(--text-primary);
  font-weight: 700;
}

.paradigm-step.active-step .badge-cur {
  background: var(--accent);
  color: var(--text-inverse);
  padding: 2px 6px;
  font-size: 0.7rem;
}

.step-label {
  display: flex;
  align-items: center;
  gap: 8px;
}

.step-meta {
  color: var(--text-muted);
  font-size: 0.72rem;
}

/* -------------------------------------------------------------
   NUMBERS & METRICS BAR (Key Stats)
   ------------------------------------------------------------- */
.metrics-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-surface);
}

.metric-cell {
  padding: 24px 20px;
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.metric-cell:last-child {
  border-right: none;
}

.metric-value {
  font-family: var(--font-mono);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1.1;
}

.metric-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
}

.metric-desc {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* -------------------------------------------------------------
   HEAD-TO-HEAD BATTLE CARD (Foq vs LLM API)
   ------------------------------------------------------------- */
.battle-section {
  padding: 80px 0;
  border-bottom: 1px solid var(--border-color);
}

.section-head {
  margin-bottom: 40px;
}

.section-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.section-title {
  font-size: 2.4rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 12px;
}

.section-desc {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 720px;
}

.battle-cards-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.battle-card {
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  border-radius: var(--radius-sm);
  padding: 30px;
  position: relative;
  overflow: hidden;
}

.battle-card.winner {
  border-color: var(--accent);
  box-shadow: 0 0 30px var(--accent-glow);
}

.battle-badge {
  position: absolute;
  top: 0;
  right: 0;
  background: var(--accent);
  color: var(--text-inverse);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.72rem;
  padding: 4px 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.battle-header {
  margin-bottom: 24px;
}

.battle-model-title {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.battle-model-subtitle {
  color: var(--text-muted);
  font-size: 0.85rem;
  font-family: var(--font-mono);
}

.battle-metrics-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.battle-metrics-table tr {
  border-bottom: 1px solid var(--border-subtle);
}

.battle-metrics-table td {
  padding: 12px 0;
}

.battle-metrics-table td:last-child {
  text-align: right;
  font-weight: 600;
}

.val-highlight {
  color: var(--accent);
  font-weight: 700;
}

.val-bad {
  color: var(--danger);
}

/* -------------------------------------------------------------
   FOQ VS JEV (TYPESAFE.AI) COMPARISON SECTION
   ------------------------------------------------------------- */
.jev-section {
  padding: 80px 0;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-primary);
}

.jev-table-wrapper {
  overflow-x: auto;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--bg-surface);
  margin-bottom: 30px;
}

.jev-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  min-width: 780px;
}

.jev-table th {
  padding: 16px 18px;
  text-align: left;
  border-bottom: 2px solid var(--border-color);
  background: var(--bg-surface-elevated);
  font-size: 0.8rem;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.jev-table th.col-foq {
  color: var(--accent);
  border-bottom-color: var(--accent);
  background: var(--accent-glow);
}

.jev-table td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-color);
  vertical-align: middle;
}

.jev-table tr:last-child td {
  border-bottom: none;
}

.jev-table td.col-foq {
  background: var(--accent-glow);
  color: var(--text-primary);
  font-weight: 600;
  border-left: 1px solid var(--accent);
  border-right: 1px solid var(--accent);
}

.jev-table tr:hover td {
  background-color: rgba(255, 255, 255, 0.02);
}

.jev-table tr:hover td.col-foq {
  background-color: var(--accent-glow);
}

.jev-takeaways-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin-top: 30px;
}

.jev-takeaway-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 24px;
}

.jev-takeaway-card.highlight {
  border-color: var(--accent);
}

.jev-takeaway-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  margin-bottom: 8px;
}

.jev-takeaway-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.jev-takeaway-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* -------------------------------------------------------------
   INTERACTIVE SIMULATOR (Decision Playground)
   ------------------------------------------------------------- */
.simulator-section {
  padding: 80px 0;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
}

.simulator-box {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
}

.simulator-input-panel {
  padding: 24px;
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.simulator-scenario-bar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.scenario-chip {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s;
}

.scenario-chip.active {
  background: var(--accent);
  color: var(--text-inverse);
  border-color: var(--accent);
  font-weight: 700;
}

.prompt-textarea {
  width: 100%;
  height: 120px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: 12px;
  border-radius: var(--radius-sm);
  resize: vertical;
}

.prompt-textarea:focus {
  outline: none;
  border-color: var(--border-focus);
}

.simulator-output-panel {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  background: var(--bg-surface);
}

.output-status-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-color);
}

.decision-result-box {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  padding: 16px;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
}

.decision-key-val {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.decision-badge-result {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--accent);
}

.prob-bars {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 14px;
}

.prob-bar-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.78rem;
}

.prob-bar-track {
  flex: 1;
  height: 8px;
  background: var(--bg-surface-elevated);
  border-radius: 2px;
  overflow: hidden;
}

.prob-bar-fill {
  height: 100%;
  background: var(--accent);
  transition: width 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* -------------------------------------------------------------
   ROI & COST CALCULATOR
   ------------------------------------------------------------- */
.calculator-section {
  padding: 80px 0;
  border-bottom: 1px solid var(--border-color);
}

.calculator-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  padding: 36px;
  border-radius: var(--radius-sm);
}

.calc-inputs {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.calc-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.calc-group label {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  display: flex;
  justify-content: space-between;
}

.calc-slider {
  width: 100%;
  height: 6px;
  accent-color: var(--accent);
  cursor: pointer;
}

.calc-results {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 20px;
  padding: 24px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
}

.result-kpi-item {
  display: flex;
  flex-direction: column;
}

.result-kpi-val {
  font-family: var(--font-mono);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--accent);
}

.result-kpi-sub {
  color: var(--text-muted);
  font-size: 0.8rem;
  font-family: var(--font-mono);
}

/* -------------------------------------------------------------
   CORE PILLARS (DEEP TECH)
   ------------------------------------------------------------- */
.pillars-section {
  padding: 80px 0;
  border-bottom: 1px solid var(--border-color);
}

.pillars-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.pillar-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  border-radius: var(--radius-sm);
}

.pillar-index {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent);
  font-weight: 700;
}

.pillar-title {
  font-size: 1.35rem;
  font-weight: 700;
}

.pillar-text {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* -------------------------------------------------------------
   BENCHMARKS & PROOF HALL
   ------------------------------------------------------------- */
.benchmarks-section {
  padding: 80px 0;
  border-bottom: 1px solid var(--border-color);
}

.charts-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 30px;
}

.chart-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  padding: 16px;
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.chart-card img {
  width: 100%;
  height: auto;
  display: block;
  border: 1px solid var(--border-subtle);
  border-radius: 2px;
}

.chart-caption {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* -------------------------------------------------------------
   CODE SNIPPETS & DEVELOPER SDK
   ------------------------------------------------------------- */
.sdk-section {
  padding: 80px 0;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-surface);
}

.code-container {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.code-tabs {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-surface-elevated);
  border-bottom: 1px solid var(--border-color);
  padding: 0 12px;
}

.tabs-group {
  display: flex;
}

.tab-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 12px 18px;
  cursor: pointer;
  border-bottom: 2px solid transparent;
}

.tab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
  font-weight: 700;
}

.code-block {
  padding: 20px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.6;
  color: #e2e8f0;
}

[data-theme="light"] .code-block {
  color: #1e293b;
}

.code-block pre {
  margin: 0;
}

/* -------------------------------------------------------------
   FAQ ACCORDION
   ------------------------------------------------------------- */
.faq-section {
  padding: 80px 0;
  border-bottom: 1px solid var(--border-color);
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 900px;
  margin-top: 30px;
}

.faq-item {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  font-size: 1.05rem;
  font-weight: 600;
  cursor: pointer;
  user-select: none;
}

.faq-question:hover {
  color: var(--accent);
}

.faq-toggle-icon {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  transition: transform 0.2s;
}

.faq-item.open .faq-toggle-icon {
  transform: rotate(45deg);
}

.faq-answer {
  display: none;
  padding: 0 24px 20px;
  color: var(--text-secondary);
  line-height: 1.6;
  font-size: 0.95rem;
  border-top: 1px solid var(--border-subtle);
  padding-top: 16px;
}

.faq-item.open .faq-answer {
  display: block;
}

/* -------------------------------------------------------------
   FOOTER
   ------------------------------------------------------------- */
.footer {
  padding: 60px 0;
  background: var(--bg-surface);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 30px;
  margin-bottom: 40px;
}

.footer-col h4 {
  color: var(--text-primary);
  margin-bottom: 14px;
  font-size: 0.9rem;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-col a {
  text-decoration: none;
  color: var(--text-secondary);
}

.footer-col a:hover {
  color: var(--accent);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
  font-size: 0.75rem;
}

.base64-easteregg {
  color: var(--text-muted);
  font-size: 0.7rem;
  word-break: break-all;
}

/* -------------------------------------------------------------
   FOQ VS LAYA BENCHMARK SECTION
   ------------------------------------------------------------- */
.laya-section {
  padding: 80px 0;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-surface);
}

.laya-charts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin-bottom: 35px;
}

.laya-charts-grid .chart-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
}

.laya-charts-grid .chart-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 4px 20px var(--accent-glow);
}

.laya-table th.col-laya {
  color: #60a5fa;
  border-bottom-color: #3b82f6;
  background: rgba(59, 130, 246, 0.08);
}

.laya-table td.col-laya {
  background: rgba(59, 130, 246, 0.04);
  color: var(--text-primary);
}

.repro-banner {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 20px 24px;
  margin-top: 30px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.repro-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.repro-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.repro-text {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.repro-cmd-box {
  display: flex;
  align-items: center;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 8px 14px;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

/* -------------------------------------------------------------
   RESPONSIVE DESIGN
   ------------------------------------------------------------- */
@media (max-width: 960px) {
  .widgets-grid,
  .battle-cards-grid,
  .simulator-box,
  .calculator-grid,
  .pillars-grid,
  .charts-grid,
  .laya-charts-grid,
  .jev-takeaways-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .metrics-strip {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .metric-cell:nth-child(2) {
    border-right: none;
  }
  
  .simulator-input-panel {
    border-right: none;
    border-bottom: 1px solid var(--border-color);
  }
  
  .nav-links {
    display: none;
  }
}

@media (max-width: 640px) {
  .metrics-strip {
    grid-template-columns: 1fr;
  }
  
  .metric-cell {
    border-right: none;
    border-bottom: 1px solid var(--border-color);
  }
  
  .hero-title {
    font-size: 2.1rem;
  }
}