/* ==========================================================================
   ChaosSQL — Studio Bregalda Design System
   Refined, calm, editorial, cinematic software engineering aesthetic.
   Tokens: #FCFBF8 (Cream), #2A2140 (Ink), #4B2E83 (Purple), #F5C400 (Yellow), #22C55E (Green)
   ========================================================================== */

:root {
  /* Brand Canonical Tokens */
  --color-cream: #FCFBF8;
  --color-ink: #2A2140;
  --color-purple: #4B2E83;
  --color-purple-light: #6A44B0;
  --color-yellow: #F5C400;
  --color-green: #22C55E;
  --color-red: #EF4444;

  /* Surfaces & Backgrounds */
  --bg-canvas: #120E1F;
  --bg-surface: #181328;
  --bg-surface-elevated: #1F1934;
  --bg-terminal: #0D0A17;

  /* Borders & Dividers */
  --border-subtle: rgba(252, 251, 248, 0.08);
  --border-medium: rgba(252, 251, 248, 0.16);
  --border-active: rgba(245, 196, 0, 0.4);

  /* Typography */
  --text-primary: #FCFBF8;
  --text-secondary: #A39BB5;
  --text-muted: #6F6782;

  --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  /* Layout */
  --container-max: 1200px;
  --nav-height: 72px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
}

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

html {
  font-family: var(--font-sans);
  background-color: var(--bg-canvas);
  color: var(--text-primary);
  font-size: 16px;
  line-height: 1.6;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  background-color: var(--bg-canvas);
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.15s ease;
}

a:hover {
  color: var(--color-yellow);
}

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

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* ==========================================================================
   Navigation Bar
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(18, 14, 31, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
  height: var(--nav-height);
  display: flex;
  align-items: center;
}

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

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo {
  height: 28px;
  width: auto;
}

.brand-title {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-cream);
}

.brand-badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 2px 8px;
  border-radius: 4px;
  background-color: rgba(75, 46, 131, 0.4);
  border: 1px solid rgba(75, 46, 131, 0.6);
  color: var(--color-cream);
  letter-spacing: 0.04em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-item {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.nav-item:hover {
  color: var(--color-cream);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  background-color: var(--bg-surface);
  border: 1px solid var(--border-medium);
  color: var(--color-cream);
  transition: all 0.2s ease;
}

.nav-cta:hover {
  border-color: var(--color-yellow);
  color: var(--color-cream);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
  padding: 80px 0 60px;
  border-bottom: 1px solid var(--border-subtle);
}

.hero-meta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-yellow);
  margin-bottom: 24px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.hero-title {
  font-size: clamp(2.4rem, 5vw, 4.2rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--color-cream);
  max-width: 900px;
  margin-bottom: 24px;
}

.hero-subtitle {
  font-size: clamp(1.1rem, 2vw, 1.3rem);
  font-weight: 400;
  line-height: 1.6;
  color: var(--text-secondary);
  max-width: 760px;
  margin-bottom: 40px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-bottom: 48px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
  cursor: pointer;
}

.btn-primary {
  background-color: var(--color-purple);
  color: var(--color-cream);
  border: 1px solid rgba(252, 251, 248, 0.2);
}

.btn-primary:hover {
  background-color: var(--color-purple-light);
  color: var(--color-cream);
}

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

.btn-secondary:hover {
  border-color: var(--color-yellow);
}

.install-command-bar {
  display: inline-flex;
  align-items: center;
  background-color: var(--bg-terminal);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-sm);
  padding: 10px 18px;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.install-command-bar code {
  color: var(--color-cream);
}

.copy-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.15s ease;
}

.copy-btn:hover {
  color: var(--color-cream);
}

/* ==========================================================================
   Terminal Window Component
   ========================================================================== */
.terminal-card {
  background-color: var(--bg-terminal);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  margin-top: 10px;
}

.terminal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  background-color: rgba(252, 251, 248, 0.03);
  border-bottom: 1px solid var(--border-subtle);
}

.terminal-dots {
  display: flex;
  gap: 8px;
}

.terminal-dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background-color: rgba(252, 251, 248, 0.2);
}

.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.03em;
}

.terminal-body {
  padding: 20px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--text-secondary);
  overflow-x: auto;
}

.term-cmd { color: var(--color-yellow); }
.term-dim { color: var(--text-muted); }
.term-err { color: var(--color-red); font-weight: 600; }
.term-ok  { color: var(--color-green); font-weight: 600; }
.term-info { color: var(--color-cream); font-weight: 600; }

/* ==========================================================================
   Core Thesis / Three Pillars
   ========================================================================== */
.section {
  padding: 80px 0;
  border-bottom: 1px solid var(--border-subtle);
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-yellow);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-cream);
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 720px;
  margin-bottom: 48px;
}

.pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.pillar-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
}

.pillar-number {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-yellow);
  margin-bottom: 16px;
  letter-spacing: 0.04em;
}

.pillar-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-cream);
  margin-bottom: 12px;
  line-height: 1.3;
}

.pillar-body {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
  flex-grow: 1;
  margin-bottom: 20px;
}

.pillar-citation {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-subtle);
  padding-top: 12px;
}

/* ==========================================================================
   Scenarios Explorer (Master-Detail Layout)
   ========================================================================== */
.scenarios-layout {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 28px;
  align-items: start;
}

.scenarios-nav {
  display: flex;
  flex-direction: column;
  gap: 6px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 12px;
}

.scenario-nav-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-secondary);
  cursor: pointer;
  text-align: left;
  transition: all 0.15s ease;
  font-family: var(--font-sans);
}

.scenario-nav-item:hover {
  background-color: rgba(252, 251, 248, 0.03);
  color: var(--color-cream);
}

.scenario-nav-item.active {
  background-color: var(--bg-surface-elevated);
  border-color: var(--border-medium);
  color: var(--color-cream);
}

.scenario-nav-name {
  font-size: 0.9rem;
  font-weight: 600;
}

.scenario-nav-code {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 2px 6px;
  border-radius: 4px;
  background-color: rgba(245, 196, 0, 0.15);
  color: var(--color-yellow);
}

.scenario-stage {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.stage-header {
  padding: 24px 28px 20px;
  border-bottom: 1px solid var(--border-subtle);
}

.stage-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-cream);
  margin-bottom: 8px;
}

.stage-summary {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.stage-tabs {
  display: flex;
  gap: 2px;
  padding: 0 28px;
  background-color: rgba(0, 0, 0, 0.15);
  border-bottom: 1px solid var(--border-subtle);
}

.stage-tab-btn {
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s ease;
}

.stage-tab-btn:hover {
  color: var(--color-cream);
}

.stage-tab-btn.active {
  color: var(--color-yellow);
  border-bottom-color: var(--color-yellow);
}

.stage-content {
  padding: 24px 28px;
}

.code-container {
  position: relative;
  background-color: var(--bg-terminal);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 18px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

.code-container .copy-code-btn {
  position: absolute;
  top: 10px;
  right: 10px;
  background-color: rgba(252, 251, 248, 0.08);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  border-radius: 4px;
  padding: 4px 8px;
  font-size: 0.75rem;
  cursor: pointer;
}

.code-container .copy-code-btn:hover {
  color: var(--color-cream);
  border-color: var(--border-medium);
}

.metrics-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 20px;
}

.metric-box {
  background-color: var(--bg-terminal);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 16px;
}

.metric-val {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-green);
  margin-bottom: 4px;
}

.metric-lbl {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ==========================================================================
   Hermitage Matrix Table
   ========================================================================== */
.matrix-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow-x: auto;
}

.matrix-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  text-align: left;
}

.matrix-table th {
  padding: 16px 20px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-medium);
  background-color: rgba(0, 0, 0, 0.2);
}

.matrix-table td {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-secondary);
}

.matrix-table tr:hover td {
  background-color: rgba(252, 251, 248, 0.02);
}

.badge {
  display: inline-block;
  padding: 4px 8px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.badge-prevented {
  background-color: rgba(34, 197, 94, 0.15);
  color: var(--color-green);
  border: 1px solid rgba(34, 197, 94, 0.3);
}

.badge-permitted {
  background-color: rgba(239, 68, 68, 0.15);
  color: var(--color-red);
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.badge-cycle {
  background-color: rgba(245, 196, 0, 0.15);
  color: var(--color-yellow);
  border: 1px solid rgba(245, 196, 0, 0.3);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  padding: 60px 0 40px;
  background-color: var(--bg-terminal);
  border-top: 1px solid var(--border-subtle);
  margin-top: auto;
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  gap: 24px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* Responsive */
@media (max-width: 960px) {
  .pillars-grid {
    grid-template-columns: 1fr;
  }
  .scenarios-layout {
    grid-template-columns: 1fr;
  }
  .scenarios-nav {
    flex-direction: row;
    overflow-x: auto;
  }
  .scenario-nav-item {
    white-space: nowrap;
  }
}

@media (max-width: 640px) {
  .nav-links {
    display: none;
  }
  .metrics-row {
    grid-template-columns: 1fr;
  }
}