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

/* ═══════════════════════════════════════════════════════════
   GraphRAG Ultra — Premium Design System
   Canvas: warm cream · Primary: tiger orange · Accent: coral
   Text: navy · Dark surfaces: claude dark · Serif display
   ═══════════════════════════════════════════════════════════ */

@theme {
  --color-canvas: #faf9f5;
  --color-surface-soft: #f5f0e8;
  --color-surface-card: #efe9de;
  --color-surface-cream-strong: #e8e0d2;
  --color-surface-dark: #181715;
  --color-surface-dark-elev: #252320;
  --color-surface-dark-soft: #1f1e1b;

  --color-tiger-orange: #FF6B00;
  --color-tiger-orange-hover: #E55F00;
  --color-tiger-orange-light: #FFF4EB;
  --color-tiger-navy: #002B49;
  --color-tiger-navy-light: #003D6B;
  --color-electric-blue: #0072CE;
  --color-electric-blue-light: #E6F4FF;

  --color-coral: #cc785c;
  --color-coral-active: #a9583e;
  --color-accent-teal: #5db8a6;
  --color-accent-amber: #e8a55a;

  --color-ink: #141413;
  --color-body-strong: #252523;
  --color-body: #3d3d3a;
  --color-muted: #6c6a64;
  --color-muted-soft: #8e8b82;
  --color-on-primary: #ffffff;
  --color-on-dark: #faf9f5;
  --color-on-dark-soft: #a09d96;

  --color-hairline: #e6dfd8;
  --color-hairline-soft: #ebe6df;

  --color-success: #5db872;
  --color-warning: #d4a017;
  --color-error: #c64545;

  --font-serif: 'Cormorant Garamond', 'EB Garamond', 'Times New Roman', serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', Consolas, monospace;
}

/* ── Base Reset ──────────────────────────────────────── */
* { box-sizing: border-box; }

html {
  font-family: var(--font-sans);
  color: var(--color-body);
  background: var(--color-canvas);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--color-canvas);
}

/* ── Typography ──────────────────────────────────────── */
.display-hero {
  font-family: var(--font-serif);
  font-size: clamp(3rem, 6vw, 5.5rem);
  font-weight: 400;
  line-height: 1.02;
  letter-spacing: -2.5px;
  color: var(--color-ink);
}

.display-xl {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -1.5px;
  color: var(--color-ink);
}

.display-lg {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -1px;
  color: var(--color-ink);
}

.display-md {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.5px;
  color: var(--color-ink);
}

.display-sm {
  font-family: var(--font-serif);
  font-size: clamp(1.25rem, 2vw, 1.75rem);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.3px;
  color: var(--color-ink);
}

.title-lg { font-size: 1.375rem; font-weight: 500; line-height: 1.3; color: var(--color-ink); }
.title-md { font-size: 1.125rem; font-weight: 500; line-height: 1.4; color: var(--color-ink); }
.title-sm { font-size: 1rem; font-weight: 500; line-height: 1.4; color: var(--color-ink); }
.body-lg { font-size: 1.125rem; font-weight: 400; line-height: 1.6; color: var(--color-body); }
.body-md { font-size: 1rem; font-weight: 400; line-height: 1.55; color: var(--color-body); }
.body-sm { font-size: 0.875rem; font-weight: 400; line-height: 1.55; color: var(--color-body); }
.caption { font-size: 0.8125rem; font-weight: 500; line-height: 1.4; color: var(--color-muted); }
.caption-uppercase {
  font-size: 0.75rem; font-weight: 600; line-height: 1.4;
  letter-spacing: 1.5px; text-transform: uppercase; color: var(--color-muted);
}
.code-text { font-family: var(--font-mono); font-size: 0.875rem; line-height: 1.6; }

/* ── Buttons ─────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--font-sans); font-size: 0.875rem; font-weight: 500;
  padding: 10px 20px; height: 40px; border-radius: 8px;
  border: none; cursor: pointer; transition: all 0.2s cubic-bezier(0.4,0,0.2,1);
  text-decoration: none; white-space: nowrap;
}

.btn-primary {
  background: var(--color-tiger-orange); color: var(--color-on-primary);
  box-shadow: 0 1px 3px rgba(255,107,0,0.2), 0 1px 2px rgba(0,0,0,0.06);
}
.btn-primary:hover { background: var(--color-tiger-orange-hover); box-shadow: 0 4px 12px rgba(255,107,0,0.3); transform: translateY(-1px); }
.btn-primary:active { transform: translateY(0); }
.btn-primary:disabled { background: var(--color-surface-cream-strong); color: var(--color-muted); cursor: default; box-shadow: none; transform: none; }

.btn-secondary {
  background: var(--color-canvas); color: var(--color-ink);
  border: 1px solid var(--color-hairline);
}
.btn-secondary:hover { background: var(--color-surface-soft); border-color: var(--color-muted-soft); transform: translateY(-1px); }

.btn-coral {
  background: var(--color-coral); color: var(--color-on-primary);
  box-shadow: 0 1px 3px rgba(204,120,92,0.2);
}
.btn-coral:hover { background: var(--color-coral-active); box-shadow: 0 4px 12px rgba(204,120,92,0.3); transform: translateY(-1px); }

.btn-ghost {
  background: transparent; color: var(--color-muted); padding: 8px 12px; height: auto;
}
.btn-ghost:hover { color: var(--color-ink); background: var(--color-surface-soft); }

.btn-on-dark {
  background: rgba(255,255,255,0.1); color: var(--color-on-dark);
  border: 1px solid rgba(255,255,255,0.15); backdrop-filter: blur(8px);
}
.btn-on-dark:hover { background: rgba(255,255,255,0.18); }

.btn-lg { height: 52px; padding: 14px 32px; font-size: 1rem; border-radius: 12px; font-weight: 600; }
.btn-sm { height: 32px; padding: 6px 14px; font-size: 0.8125rem; border-radius: 6px; }
.btn-icon { width: 36px; height: 36px; padding: 0; border-radius: 50%; }

/* ── Cards ───────────────────────────────────────────── */
.card {
  background: var(--color-canvas);
  border: 1px solid var(--color-hairline);
  border-radius: 16px;
  padding: 32px;
  transition: all 0.25s cubic-bezier(0.4,0,0.2,1);
}

.card-cream {
  background: var(--color-surface-card);
  border: none;
  border-radius: 16px;
  padding: 32px;
}

.card-dark {
  background: var(--color-surface-dark);
  border: none;
  border-radius: 16px;
  padding: 32px;
  color: var(--color-on-dark);
}

.card-dark-elevated {
  background: var(--color-surface-dark-elev);
  border-radius: 16px;
  padding: 24px;
  color: var(--color-on-dark);
}

.card-glass {
  background: rgba(250, 249, 245, 0.6);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(230, 223, 216, 0.5);
  border-radius: 16px;
  padding: 32px;
}

.card-coral {
  background: linear-gradient(135deg, #FF6B00, #E55F00);
  border: none;
  border-radius: 16px;
  padding: 48px;
  color: var(--color-on-primary);
}

.card-coral .display-sm,
.card-coral .display-md { color: var(--color-on-primary); }

.card-hover { transition: transform 0.3s cubic-bezier(0.4,0,0.2,1), box-shadow 0.3s cubic-bezier(0.4,0,0.2,1); }
.card-hover:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 43, 73, 0.1);
}

.card-gradient-blue {
  background: linear-gradient(135deg, #002B49, #003D6B);
  border: none;
  border-radius: 16px;
  padding: 32px;
  color: white;
}

.card-gradient-orange {
  background: linear-gradient(135deg, #FF6B00, #FF8C35);
  border: none;
  border-radius: 16px;
  padding: 32px;
  color: white;
}

/* ── Pipeline Comparison Cards ───────────────────────── */
.pipeline-baseline { border-left: 4px solid var(--color-electric-blue); }
.pipeline-graphrag { border-left: 4px solid var(--color-tiger-orange); }

/* ── Badges ──────────────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center;
  padding: 4px 12px; border-radius: 9999px;
  font-size: 0.8125rem; font-weight: 500;
}
.badge-cream { background: var(--color-surface-card); color: var(--color-ink); }
.badge-orange { background: var(--color-tiger-orange); color: white; }
.badge-coral { background: var(--color-coral); color: white; }
.badge-blue { background: var(--color-electric-blue); color: white; }
.badge-success { background: var(--color-success); color: white; }
.badge-outline {
  background: transparent; border: 1px solid var(--color-hairline); color: var(--color-muted);
}
.badge-glow {
  background: var(--color-tiger-orange);
  color: white;
  box-shadow: 0 0 16px rgba(255,107,0,0.3);
}

/* ── Inputs ──────────────────────────────────────────── */
.input {
  width: 100%; height: 44px; padding: 10px 16px;
  background: var(--color-canvas); color: var(--color-ink);
  border: 1px solid var(--color-hairline); border-radius: 10px;
  font-family: var(--font-sans); font-size: 1rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.input:focus {
  outline: none; border-color: var(--color-tiger-orange);
  box-shadow: 0 0 0 3px rgba(255, 107, 0, 0.1);
}
.input::placeholder { color: var(--color-muted-soft); }
.textarea { min-height: 100px; resize: vertical; }

/* ── Tabs ────────────────────────────────────────────── */
.tab-bar {
  display: flex; gap: 4px; padding: 4px;
  background: var(--color-surface-soft);
  border-radius: 12px; overflow-x: auto;
}
.tab-item {
  padding: 10px 20px; border-radius: 10px;
  font-size: 0.875rem; font-weight: 500;
  color: var(--color-muted); cursor: pointer;
  transition: all 0.2s ease; white-space: nowrap;
  border: none; background: transparent;
}
.tab-item:hover { color: var(--color-ink); background: var(--color-canvas); }
.tab-item-active {
  color: var(--color-ink); background: var(--color-canvas);
  box-shadow: 0 2px 8px rgba(0, 43, 73, 0.08);
}

/* ── Metric Display ──────────────────────────────────── */
.metric-value {
  font-family: var(--font-mono);
  font-size: 2.5rem; font-weight: 600;
  color: var(--color-ink);
  line-height: 1.1;
}
.metric-value-sm { font-size: 1.5rem; }
.metric-value-lg { font-size: 3.5rem; }
.metric-label { font-size: 0.8125rem; font-weight: 500; color: var(--color-muted); margin-top: 4px; }
.metric-delta-positive { color: var(--color-success); font-size: 0.8125rem; font-weight: 500; }
.metric-delta-negative { color: var(--color-error); font-size: 0.8125rem; font-weight: 500; }

/* ── Code Window ─────────────────────────────────────── */
.code-window {
  background: var(--color-surface-dark);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
}
.code-window-header {
  display: flex; align-items: center; gap: 8px;
  padding: 14px 18px;
  background: var(--color-surface-dark-elev);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.code-window-dot { width: 12px; height: 12px; border-radius: 50%; }
.code-window-dot-red { background: #ff5f57; }
.code-window-dot-yellow { background: #febc2e; }
.code-window-dot-green { background: #28c840; }
.code-window-body {
  padding: 24px;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--color-on-dark);
  overflow-x: auto;
}

/* ── Navbar ──────────────────────────────────────────── */
.navbar {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  height: 72px; padding: 0 40px;
  background: rgba(250, 249, 245, 0.8);
  border-bottom: 1px solid var(--color-hairline-soft);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
}

.nav-link {
  font-size: 0.875rem; font-weight: 500;
  color: var(--color-muted);
  text-decoration: none;
  padding: 8px 16px;
  border-radius: 8px;
  transition: all 0.2s ease;
  position: relative;
}
.nav-link:hover {
  color: var(--color-ink);
  background: var(--color-surface-soft);
}
.nav-link-active {
  color: var(--color-tiger-orange);
  background: var(--color-tiger-orange-light);
}
.nav-link-active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 16px;
  right: 16px;
  height: 2px;
  background: var(--color-tiger-orange);
  border-radius: 1px;
}

/* ── Section Rhythm ──────────────────────────────────── */
.section { padding: 96px 0; }
.section-sm { padding: 64px 0; }
.section-lg { padding: 128px 0; }
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.container-wide { width: 100%; max-width: 1400px; margin: 0 auto; padding: 0 24px; }
.container-narrow { width: 100%; max-width: 800px; margin: 0 auto; padding: 0 24px; }

/* ── Page Header ─────────────────────────────────────── */
.page-header { padding: 80px 0 48px; text-align: center; }
.page-header-dark { padding: 80px 0 48px; text-align: center; background: var(--color-surface-dark); color: var(--color-on-dark); }

/* ── Graph Visualization ─────────────────────────────── */
.graph-node { transition: transform 0.2s ease; }
.graph-node:hover { transform: scale(1.15); filter: drop-shadow(0 0 12px rgba(255, 107, 0, 0.5)); }
.graph-edge { stroke: var(--color-muted-soft); stroke-width: 1.5; transition: stroke 0.2s ease; }

/* ── Animations ──────────────────────────────────────── */
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}
.skeleton {
  background: linear-gradient(90deg, var(--color-surface-soft) 25%, var(--color-surface-card) 50%, var(--color-surface-soft) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
  border-radius: 8px;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
.animate-fade-in-up { animation: fadeInUp 0.6s cubic-bezier(0.4,0,0.2,1) forwards; opacity: 0; }
.delay-100 { animation-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; }
.delay-400 { animation-delay: 0.4s; }
.delay-500 { animation-delay: 0.5s; }
.delay-600 { animation-delay: 0.6s; }
.delay-700 { animation-delay: 0.7s; }

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.animate-fade-in { animation: fadeIn 0.5s ease forwards; opacity: 0; }

@keyframes slideInLeft { from { opacity: 0; transform: translateX(-32px); } to { opacity: 1; transform: translateX(0); } }
.animate-slide-left { animation: slideInLeft 0.6s cubic-bezier(0.4,0,0.2,1) forwards; opacity: 0; }

@keyframes slideInRight { from { opacity: 0; transform: translateX(32px); } to { opacity: 1; transform: translateX(0); } }
.animate-slide-right { animation: slideInRight 0.6s cubic-bezier(0.4,0,0.2,1) forwards; opacity: 0; }

@keyframes scaleIn { from { opacity: 0; transform: scale(0.92); } to { opacity: 1; transform: scale(1); } }
.animate-scale-in { animation: scaleIn 0.5s cubic-bezier(0.4,0,0.2,1) forwards; opacity: 0; }

@keyframes pulse-glow { 0%, 100% { box-shadow: 0 0 20px rgba(255,107,0,0.2); } 50% { box-shadow: 0 0 40px rgba(255,107,0,0.4); } }
.animate-pulse-glow { animation: pulse-glow 3s ease-in-out infinite; }

@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }
.animate-float { animation: float 4s ease-in-out infinite; }

@keyframes gradient-shift { 0% { background-position: 0% 50%; } 50% { background-position: 100% 50%; } 100% { background-position: 0% 50%; } }
.animate-gradient { background-size: 200% auto; animation: gradient-shift 6s ease infinite; }

/* ── Divider ─────────────────────────────────────────── */
.divider { width: 48px; height: 3px; background: var(--color-tiger-orange); border-radius: 2px; }
.divider-center { width: 48px; height: 3px; background: var(--color-tiger-orange); border-radius: 2px; margin: 0 auto; }

/* ── Feature Grid ────────────────────────────────────── */
.feature-icon { width: 56px; height: 56px; border-radius: 14px; display: flex; align-items: center; justify-content: center; font-size: 1.5rem; margin-bottom: 16px; }
.feature-icon-orange { background: var(--color-tiger-orange-light); }
.feature-icon-blue { background: var(--color-electric-blue-light); }
.feature-icon-teal { background: #e8f8f5; }
.feature-icon-amber { background: #fef9e7; }
.feature-icon-coral { background: #fef0eb; }

/* ── Bento Grid ──────────────────────────────────────── */
.bento-grid { display: grid; gap: 16px; }
.bento-grid-3 { grid-template-columns: repeat(3, 1fr); }
.bento-span-2 { grid-column: span 2; }
.bento-row-2 { grid-row: span 2; }

/* ── Glow effect ─────────────────────────────────────── */
.glow-orange { box-shadow: 0 0 32px rgba(255,107,0,0.15); }
.glow-blue { box-shadow: 0 0 32px rgba(0,114,206,0.15); }

/* ── Tooltip ─────────────────────────────────────────── */
.custom-tooltip {
  background: var(--color-canvas) !important;
  border: 1px solid var(--color-hairline) !important;
  border-radius: 10px !important;
  padding: 14px !important;
  box-shadow: 0 8px 32px rgba(0, 43, 73, 0.08) !important;
}

/* ── Responsive ──────────────────────────────────────── */
@media (max-width: 1024px) {
  .bento-grid-3 { grid-template-columns: 1fr 1fr; }
  .bento-span-2 { grid-column: span 1; }
}
@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .section-lg { padding: 80px 0; }
  .container { padding: 0 16px; }
  .card, .card-cream, .card-dark { padding: 24px; }
  .navbar { padding: 0 16px; height: 60px; }
  .display-hero { letter-spacing: -1px; }
  .display-xl { letter-spacing: -0.5px; }
  .bento-grid-3 { grid-template-columns: 1fr; }
  .page-header { padding: 48px 0 32px; }
}

/* ── Scrollbar ───────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--color-hairline); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--color-muted-soft); }

/* ── Selection ───────────────────────────────────────── */
::selection { background: rgba(255, 107, 0, 0.15); color: var(--color-ink); }

/* ── Prose ───────────────────────────────────────────── */
.prose h1, .prose h2, .prose h3 { font-family: var(--font-serif); font-weight: 400; }
.prose h1 { font-size: 2rem; letter-spacing: -0.5px; }
.prose h2 { font-size: 1.5rem; letter-spacing: -0.3px; }
.prose p { line-height: 1.7; color: var(--color-body); }
.prose code { font-family: var(--font-mono); font-size: 0.875em; background: var(--color-surface-soft); padding: 2px 6px; border-radius: 4px; }
.prose strong { color: var(--color-ink); font-weight: 600; }

/* ── Gradient text ───────────────────────────────────── */
.gradient-text-orange {
  background: linear-gradient(135deg, #FF6B00, #cc785c);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.gradient-text-blue {
  background: linear-gradient(135deg, #0072CE, #002B49);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Horizontal Scroll ───────────────────────────────── */
.scroll-hidden::-webkit-scrollbar { display: none; }
.scroll-hidden { -ms-overflow-style: none; scrollbar-width: none; }