/* ============================================================
   Agent Assemble — Shared Design System
   Canonical tokens, navigation, base styles, common components
   ============================================================ */

/* ----- Design Tokens (from DESIGN_GUIDE.md) ----- */
:root {
  --bg: #0F0F14;
  --bg-card: #1A1A24;
  --bg-card-hover: #22222E;
  --text: #E8E8ED;
  --text-dim: #8888A0;
  --text-muted: #55556A;
  --accent: #E85D04;
  --accent-light: #FF8C42;
  --accent-dark: #C44D03;
  --accent-glow: rgba(232,93,4,0.3);
  --claw-green: #22C55E;
  --border: rgba(255,255,255,0.08);
  --border-accent: rgba(232,93,4,0.25);
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 4px 24px rgba(0,0,0,0.35);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.45);
  --shadow-glow: 0 0 40px rgba(232,93,4,0.12);
  --gradient-1: linear-gradient(135deg, #E85D04, #FF8C42);
  --gradient-2: linear-gradient(135deg, #6366F1, #A78BFA);
  --gradient-3: linear-gradient(135deg, #059669, #34D399);
  --gradient-4: linear-gradient(135deg, #DC2626, #F87171);
  --purple: #A78BFA;
  --blue: #3b82f6;
  --red: #F87171;
  --indigo: #6366F1;
  --success: #22C55E;
  --warning: #f59e0b;
  --error: #ef4444;
  --info: #A78BFA;
  /* Hero gradient for page headers */
  --hero-bg: linear-gradient(160deg, rgba(232,93,4,0.07) 0%, rgba(15,15,20,0.0) 60%);
}

/* ----- Global Reset & Base ----- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { font-size: 17px; scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  padding-top: 44px !important;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a { color: var(--accent); text-decoration: none; transition: color .2s; }
a:hover { color: var(--accent-light); }

/* ----- Scroll Progress Bar ----- */
.scroll-progress {
  position: fixed;
  top: 44px;
  left: 0;
  height: 3px;
  width: 0%;
  background: var(--gradient-1);
  z-index: 9998;
  transition: width 0.1s linear;
}

/* ----- Agent Assemble Cross-Nav ----- */
.aa-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 9999;
  background: rgba(10,10,15,.97);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  padding: 0 16px;
  display: flex;
  align-items: center;
  gap: 2px;
  height: 44px;
  overflow-x: auto;
}
.aa-nav::-webkit-scrollbar { display: none; }
.aa-nav a {
  color: var(--text-muted);
  font-size: 12px;
  padding: 5px 11px;
  border-radius: 6px;
  text-decoration: none;
  white-space: nowrap;
  transition: all .18s ease;
  font-weight: 500;
  letter-spacing: 0.01em;
}
.aa-nav a:hover { color: var(--text); background: rgba(255,255,255,.06); }
.aa-nav a.aa-active {
  color: var(--accent-light);
  background: rgba(232,93,4,.14);
}
.aa-nav a.aa-home {
  color: var(--accent-light);
  font-weight: 700;
  margin-right: 8px;
  border-right: 1px solid var(--border);
  padding-right: 16px;
  font-size: 12.5px;
}
.aa-nav a.aa-home:hover { color: #fff; background: transparent; }
.aa-nav .aa-logo {
  height: 20px;
  width: 20px;
  border-radius: 4px;
  vertical-align: middle;
  margin-right: 6px;
}

/* ----- Page Hero (shared pattern for all inner pages) ----- */
.page-hero {
  position: relative;
  padding: 52px 40px 44px;
  border-radius: 20px;
  margin-bottom: 36px;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(232,93,4,0.08) 0%, rgba(26,26,36,0.0) 100%);
  border: 1px solid rgba(232,93,4,0.14);
}
.page-hero::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -80px;
  width: 380px;
  height: 380px;
  background: radial-gradient(circle, rgba(232,93,4,0.10) 0%, transparent 70%);
  pointer-events: none;
}
.page-hero h1 {
  font-size: 2.75rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.5px;
  margin-bottom: 14px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.page-hero p {
  font-size: 1.05rem;
  color: var(--text-dim);
  max-width: 620px;
  line-height: 1.7;
}

/* ----- Section Headers ----- */
.section-badge {
  display: inline-block;
  padding: 5px 14px;
  border-radius: 20px;
  font-size: .68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.8px;
  margin-bottom: 14px;
}
.badge-orange { background: rgba(232,93,4,0.10); color: var(--accent); border: 1px solid rgba(232,93,4,0.22); }
.badge-green  { background: rgba(34,197,94,0.10); color: var(--claw-green); border: 1px solid rgba(34,197,94,0.25); }
.badge-purple { background: rgba(99,102,241,0.10); color: #A78BFA; border: 1px solid rgba(99,102,241,0.25); }
.badge-blue   { background: rgba(59,130,246,0.10); color: #60a5fa; border: 1px solid rgba(59,130,246,0.25); }

/* ----- Cards ----- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: border-color .22s ease, box-shadow .22s ease, transform .22s ease;
}
.card:hover {
  border-color: var(--border-accent);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

/* ----- Buttons ----- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.88rem;
  cursor: pointer;
  transition: all .2s ease;
  border: none;
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover {
  background: var(--accent-light);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(232,93,4,0.35);
}
.btn-secondary {
  background: rgba(255,255,255,0.06);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-secondary:hover {
  background: rgba(255,255,255,0.10);
  border-color: rgba(255,255,255,0.15);
  transform: translateY(-1px);
}
.btn-ghost {
  background: transparent;
  color: var(--text-dim);
  border: 1px solid var(--border);
}
.btn-ghost:hover {
  background: rgba(232,93,4,0.08);
  color: var(--accent);
  border-color: var(--border-accent);
}

/* ----- Search / Filter Inputs ----- */
.search-input-wrap {
  position: relative;
}
.search-input-wrap svg {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}
.search-input {
  width: 100%;
  padding: 11px 16px 11px 40px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  font-size: 0.93rem;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.search-input::placeholder { color: var(--text-muted); }
.search-input:focus {
  outline: none;
  border-color: rgba(232,93,4,0.45);
  box-shadow: 0 0 0 3px rgba(232,93,4,0.10);
}

/* Filter buttons */
.filter-btn {
  padding: 7px 16px;
  border-radius: 8px;
  font-size: 0.84rem;
  font-weight: 500;
  cursor: pointer;
  transition: all .18s ease;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-dim);
}
.filter-btn:hover { border-color: rgba(232,93,4,0.3); color: var(--accent-light); background: rgba(232,93,4,0.05); }
.filter-btn.active { background: rgba(232,93,4,0.12); color: var(--accent); border-color: rgba(232,93,4,0.35); font-weight: 600; }

/* ----- Tab Navigation ----- */
.tab-nav {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 28px;
}
.tab-btn {
  padding: 10px 20px;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: all .18s ease;
}
.tab-btn:hover { color: var(--text); }
.tab-btn.active { color: var(--accent); border-bottom-color: var(--accent); font-weight: 600; }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ----- Stats Row ----- */
.stats-row {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  margin-top: 28px;
}
.stat-item { text-align: center; }
.stat-item .stat-value {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
}
.stat-item .stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1.2px;
  margin-top: 4px;
}

/* ----- Code Blocks ----- */
.code-block {
  background: #0d0d12;
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: var(--radius-sm);
  padding: 20px;
  font-family: 'SF Mono', 'Fira Code', 'Monaco', 'Consolas', monospace;
  font-size: 0.82rem;
  line-height: 1.65;
  overflow-x: auto;
  position: relative;
}
.code-block pre { color: #cdd6f4; }

/* ----- Callout / Info Box ----- */
.callout {
  padding: 16px 20px;
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--accent);
  background: rgba(232,93,4,0.06);
  font-size: 0.9rem;
  color: var(--text-dim);
  line-height: 1.65;
}
.callout.info  { border-color: var(--blue);  background: rgba(59,130,246,0.06); }
.callout.success { border-color: var(--claw-green); background: rgba(34,197,94,0.06); }
.callout.warning { border-color: var(--warning); background: rgba(245,158,11,0.06); }

/* ----- Grid Utilities ----- */
.cards-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.cards-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
@media (max-width: 1024px) {
  .cards-grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .cards-grid-3,
  .cards-grid-2 { grid-template-columns: 1fr; }
}

/* ----- Tags / Badges ----- */
.tag {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 6px;
  font-size: 0.72rem;
  font-weight: 600;
  border: 1px solid;
}
.tag-orange { background: rgba(232,93,4,.08); color: var(--accent-light); border-color: rgba(232,93,4,.2); }
.tag-green  { background: rgba(34,197,94,.08); color: #34d399; border-color: rgba(34,197,94,.2); }
.tag-purple { background: rgba(167,139,250,.08); color: #c084fc; border-color: rgba(167,139,250,.2); }
.tag-blue   { background: rgba(59,130,246,.08); color: #60a5fa; border-color: rgba(59,130,246,.2); }
.tag-pink   { background: rgba(236,72,153,.08); color: #f472b6; border-color: rgba(236,72,153,.2); }
.tag-amber  { background: rgba(245,158,11,.08); color: #fbbf24; border-color: rgba(245,158,11,.2); }

/* ----- Reveal Animation ----- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ----- Copy Feedback Toast ----- */
.copy-toast {
  position: fixed;
  top: 60px;
  right: 20px;
  background: var(--claw-green);
  color: #fff;
  padding: 12px 20px;
  border-radius: 8px;
  z-index: 10000;
  font-weight: 600;
  font-size: 0.85rem;
  opacity: 0;
  transform: translateY(-10px);
  transition: opacity 0.3s, transform 0.3s;
  pointer-events: none;
}
.copy-toast.show {
  opacity: 1;
  transform: translateY(0);
}

/* ----- Divider ----- */
.divider {
  height: 1px;
  background: var(--border);
  margin: 32px 0;
}

/* ----- Empty State ----- */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}
.empty-state .empty-icon {
  font-size: 3rem;
  margin-bottom: 16px;
  opacity: 0.5;
}
.empty-state p {
  font-size: 0.95rem;
}

/* ----- Print Styles ----- */
@media print {
  .aa-nav, .scroll-progress { display: none !important; }
  body { background: #fff; color: #111; padding-top: 0 !important; }
}

/* ----- Responsive ----- */
@media (max-width: 768px) {
  .page-hero { padding: 36px 24px 32px; }
  .page-hero h1 { font-size: 2rem; }
  .stats-row { gap: 20px; }
}
@media (max-width: 600px) {
  html { font-size: 15px; }
  .aa-nav { gap: 0; }
  .aa-nav a { font-size: 11px; padding: 5px 8px; }
}