web/src/app/globals.css

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

/* ═══════════════════════════════════════════════════════════
   TigerGraph × Claude — Fused 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 — Serif Display + Sans Body ──────────── */
.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-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: 500; 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 0.15s ease;
  text-decoration: none; white-space: nowrap;
}

.btn-primary {
  background: var(--color-tiger-orange); color: var(--color-on-primary);
  box-shadow: 0 1px 2px rgba(0,0,0,0.08);
}
.btn-primary:hover { background: var(--color-tiger-orange-hover); }
.btn-primary:active { background: #CC5500; transform: translateY(1px); }
.btn-primary:disabled { background: var(--color-surface-cream-strong); color: var(--color-muted); cursor: default; }

.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); }

.btn-coral {
  background: var(--color-coral); color: var(--color-on-primary);
}
.btn-coral:hover { background: var(--color-coral-active); }

.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: var(--color-surface-dark-elev); color: var(--color-on-dark);
  border: 1px solid rgba(255,255,255,0.1);
}
.btn-on-dark:hover { background: var(--color-surface-dark-soft); }

.btn-lg { height: 48px; padding: 12px 28px; font-size: 1rem; border-radius: 10px; }
.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: 12px;
  padding: 32px;
}

.card-cream {
  background: var(--color-surface-card);
  border: none;
  border-radius: 12px;
  padding: 32px;
}

.card-dark {
  background: var(--color-surface-dark);
  border: none;
  border-radius: 12px;
  padding: 32px;
  color: var(--color-on-dark);
}

.card-dark-elevated {
  background: var(--color-surface-dark-elev);
  border-radius: 12px;
  padding: 24px;
  color: var(--color-on-dark);
}

.card-coral {
  background: var(--color-tiger-orange);
  border: none;
  border-radius: 12px;
  padding: 48px;
  color: var(--color-on-primary);
}

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

.card-hover { transition: transform 0.2s ease, box-shadow 0.2s ease; }
.card-hover:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0, 43, 73, 0.08);
}

/* ── 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);
}

/* ── Inputs ──────────────────────────────────────────── */
.input {
  width: 100%; height: 40px; padding: 10px 14px;
  background: var(--color-canvas); color: var(--color-ink);
  border: 1px solid var(--color-hairline); border-radius: 8px;
  font-family: var(--font-sans); font-size: 1rem;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.input:focus {
  outline: none; border-color: var(--color-tiger-orange);
  box-shadow: 0 0 0 3px rgba(255, 107, 0, 0.12);
}
.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: 10px; overflow-x: auto;
}
.tab-item {
  padding: 8px 16px; border-radius: 8px;
  font-size: 0.875rem; font-weight: 500;
  color: var(--color-muted); cursor: pointer;
  transition: all 0.15s 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 1px 3px rgba(0, 43, 73, 0.08);
}

/* ── Metric Display ──────────────────────────────────── */
.metric-value {
  font-family: var(--font-mono);
  font-size: 2rem; font-weight: 500;
  color: var(--color-ink);
  line-height: 1.1;
}
.metric-value-sm { font-size: 1.5rem; }
.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: 12px;
  overflow: hidden;
}
.code-window-header {
  display: flex; align-items: center; gap: 8px;
  padding: 12px 16px;
  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: 20px;
  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: 64px; padding: 0 32px;
  background: var(--color-canvas);
  border-bottom: 1px solid var(--color-hairline-soft);
  backdrop-filter: blur(12px);
  background: rgba(250, 249, 245, 0.92);
}

/* ── Section Rhythm ──────────────────────────────────── */
.section { padding: 96px 0; }
.section-sm { padding: 48px 0; }
.container {
  width: 100%; max-width: 1200px;
  margin: 0 auto; padding: 0 24px;
}

/* ── Graph Visualization ─────────────────────────────── */
.graph-node {
  transition: transform 0.2s ease;
}
.graph-node:hover {
  transform: scale(1.15);
  filter: drop-shadow(0 0 8px rgba(255, 107, 0, 0.4));
}
.graph-edge {
  stroke: var(--color-muted-soft);
  stroke-width: 1.5;
  transition: stroke 0.2s ease;
}

/* ── Loading Skeleton ────────────────────────────────── */
@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;
}

/* ── Tooltip ─────────────────────────────────────────── */
.custom-tooltip {
  background: var(--color-canvas) !important;
  border: 1px solid var(--color-hairline) !important;
  border-radius: 8px !important;
  padding: 12px !important;
  box-shadow: 0 4px 16px rgba(0, 43, 73, 0.08) !important;
}

/* ── Responsive ──────────────────────────────────────── */
@media (max-width: 768px) {
  .section { padding: 48px 0; }
  .container { padding: 0 16px; }
  .card, .card-cream, .card-dark { padding: 20px; }
  .navbar { padding: 0 16px; height: 56px; }
  .display-xl { letter-spacing: -0.5px; }
}

/* ── 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 for markdown-like rendering ───────────────── */
.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; }