/**
 * webartests Shared Design System
 * ── Foundations & Tokens ──
 */

:root {
  /* Core Palette */
  --bg: #0d0d0d;
  --surface: #111111;
  --card: #1a1a1a;
  --card-hover: #222222;
  --border: #2a2a2a;
  --border-hover: #444444;

  /* Accent Colors */
  --accent-blue: #5b9bd5;
  --accent-green: #10b981;
  --accent-emerald: #10b981;
  --accent-orange: #f59e0b;
  --accent-amber: #fbbf24;
  --accent-red: #e74c3c;
  --accent-violet: #8b5cf6;

  /* Status Colors */
  --success: var(--accent-green);
  --warning: var(--accent-amber);
  --danger: var(--accent-red);

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "SF Mono", "Fira Code", "JetBrains Mono", monospace;

  /* Spacing & Layout */
  --page-padding: 60px 24px 80px;
  --max-width-content: 860px;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;

  /* Experiment Specific (Laser) */
  --deterministic-color: #94a3b8;
  --stochastic-color: #a78bfa;
  --test-all-color: #0ea5e9;
}

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

body {
  background: var(--bg);
  color: #fff;
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.7;
  min-height: 100vh;
  padding: var(--page-padding);
}

/* ── Typography Scale ── */
h1 { font-size: 32px; font-weight: 800; margin-bottom: 8px; letter-spacing: -0.02em; }
h2 { font-size: 22px; font-weight: 700; margin-bottom: 6px; }
.subtitle { color: #888; font-size: 15px; line-height: 1.6; max-width: 640px; margin-bottom: 56px; }
.section-label { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; color: var(--accent-blue); margin-bottom: 4px; }

p { color: #bbb; font-size: 14px; line-height: 1.75; margin-bottom: 14px; max-width: 680px; }
p strong { color: #fff; }
p em { color: #999; font-style: italic; }

code, pre, .mono { font-family: var(--font-mono); font-size: 13px; }

/* ── Layout Helpers ── */
.page { max-width: var(--max-width-content); margin: 0 auto; }
.section { margin-bottom: 64px; }
.two-col { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 16px; margin: 20px 0; }

/* ── Navigation ── */
a.back-link {
  display: inline-block;
  margin-bottom: 40px;
  color: #555;
  text-decoration: none;
  font-size: 14px;
  transition: color 0.15s;
}
a.back-link:hover { color: #aaa; }

/* ── Components ── */

/* Cards */
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; }
a.card, .panel {
  display: block;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s, background 0.15s, transform 0.1s;
}
a.card:hover { background: var(--card-hover); border-color: var(--border-hover); }

.card-icon { font-size: 32px; margin-bottom: 16px; }
.card h2 { font-size: 17px; font-weight: 600; margin-bottom: 8px; color: #fff; }
.card p { font-size: 14px; color: #888; line-height: 1.5; margin-bottom: 0; }

/* Buttons */
button, .btn {
  background: var(--card);
  border: 1px solid #333;
  color: #ccc;
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  cursor: pointer;
  transition: all 0.1s;
  font-family: inherit;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
button:hover, .btn:hover { background: var(--card-hover); border-color: #555; color: #fff; }
button.primary, .btn.primary { background: #1e2d40; border-color: var(--accent-blue); color: var(--accent-blue); }
button.primary:hover, .btn.primary:hover { background: #243550; color: #fff; }
button.danger, .btn.danger { background: #2a1010; border-color: var(--accent-red); color: var(--accent-red); }
button.danger:hover, .btn.danger:hover { background: #3a1515; color: #fff; }
button:disabled { opacity: 0.3; cursor: default; }

/* Badges & Tags */
.badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  padding: 3px 10px;
  border-radius: 20px;
}
.badge.blue { color: var(--accent-blue); background: #1e2d40; border: 1px solid #5b9bd544; }
.badge.green { color: var(--accent-green); background: #1a2a1a; border: 1px solid #10b98144; }
.badge.neutral { color: #888; background: #1a1a1a; border: 1px solid var(--border); }

.tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: #555;
  background: #222;
  border: 1px solid #333;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
}

/* Callouts */
.callout {
  border-left: 3px solid var(--accent-blue);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 12px 16px;
  font-size: 13px;
  color: #888;
  line-height: 1.7;
  margin-bottom: 10px;
}
.callout.blue { background: #0d1620; border-color: var(--accent-blue); }
.callout.green { background: #0a1a0a; border-color: var(--accent-green); }
.callout.orange { background: #1a1200; border-color: var(--accent-orange); }
.callout.red { background: #1a0a0a; border-color: var(--accent-red); }
.callout strong { color: #ccc; }

/* ── Simulation Elements ── */
.viz-container {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px;
  margin: 24px 0;
}
.viz-label { font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; color: #444; margin-bottom: 12px; }

canvas {
  background: #000;
  border: 1px solid var(--border);
  border-radius: 8px;
  display: block;
  width: 100%;
  height: auto;
}

.controls { display: flex; flex-wrap: wrap; gap: 20px; margin-top: 16px; }
.meta-bar {
  display: flex;
  gap: 24px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px 24px;
  margin-bottom: 32px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: #aaa;
}
.meta-item b { color: var(--accent-blue); margin-right: 4px; }
.meta-item strong { color: #fff; }

/* ─── Search Component ─── */
.search-container {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 28px 0 32px;
  width: 100%;
}
.search-input-field {
  flex: 1;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: #fff;
  font-family: var(--font-sans);
  font-size: 14px;
  padding: 10px 16px;
  outline: none;
  transition: all 0.15s ease;
}
.search-input-field:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 10px rgba(91, 155, 213, 0.15);
}
.search-semantic-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  border: 1px dashed var(--border);
  background: var(--surface);
  color: #888;
  transition: all 0.2s ease;
  user-select: none;
  opacity: 0;
  pointer-events: none;
  transform: scale(0.95);
  white-space: nowrap;
}
.search-semantic-status[data-state="loading"] {
  opacity: 1;
  transform: scale(1);
  border-color: var(--accent-orange);
  color: var(--accent-orange);
  animation: semantic-pulse 1.5s infinite;
}
.search-semantic-status[data-state="thinking"] {
  opacity: 1;
  transform: scale(1);
  border-color: var(--accent-violet);
  color: var(--accent-violet);
}
.search-semantic-status[data-state="ready"] {
  opacity: 1;
  transform: scale(1);
  border-color: var(--accent-green);
  color: var(--accent-green);
  box-shadow: 0 0 8px rgba(16, 185, 129, 0.15);
}
.search-spark {
  display: inline-block;
  transition: transform 0.3s ease;
}
.search-semantic-status[data-state="thinking"] .search-spark {
  animation: semantic-spin 1s linear infinite;
}
.badge--match {
  color: var(--accent-violet);
  border: 1px solid rgba(139, 92, 246, 0.3);
  background: rgba(139, 92, 246, 0.05);
  margin-left: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 2px 6px;
  border-radius: 4px;
  vertical-align: middle;
  display: inline-block;
}
@keyframes semantic-pulse {
  0% { opacity: 0.6; }
  50% { opacity: 1; }
  100% { opacity: 0.6; }
}
@keyframes semantic-spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}