/* === TGA Refill Atlas — Stylesheet === */

:root {
  --bg: #0a0f1a;
  --surface: #111827;
  --surface-raised: #1a2234;
  --border: #2a3450;
  --text: #e4e7ec;
  --text-muted: #8b95a8;
  --accent: #60a5fa;
  --accent-dim: #2563eb;
  --tga-up: #f97316;
  --tga-down: #3b82f6;
  --mmf: #a855f7;
  --onrrp: #22c55e;
  --deposits: #f59e0b;
  --reserves: #3b82f6;
  --bank-ta: #ef4444;
  --dealer: #ec4899;
  --sig-star: #fbbf24;
  --font-serif: "Source Serif 4", "Georgia", serif;
  --font-sans: "Inter", -apple-system, "Segoe UI", sans-serif;
  --font-mono: "SF Mono", "Fira Code", "Consolas", monospace;
  --max-w: 1280px;
  --pad: clamp(16px, 3vw, 40px);
  --radius: 10px;
}

[data-theme="light"] {
  --bg: #f8fafc;
  --surface: #ffffff;
  --surface-raised: #f1f5f9;
  --border: #e2e8f0;
  --text: #1e293b;
  --text-muted: #64748b;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* === Layout === */
.page-shell { max-width: var(--max-w); margin: 0 auto; padding: 0 var(--pad); }

.hero {
  padding: clamp(48px, 8vh, 96px) 0 40px;
  text-align: center;
}

.hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--mmf) 50%, var(--tga-up) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero .lede {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--text-muted);
  max-width: 720px;
  margin: 0 auto 28px;
}

.hero-buttons { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* === Buttons === */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 10px 20px;
  border-radius: 8px;
  font-size: 0.9rem; font-weight: 500;
  cursor: pointer; text-decoration: none;
  transition: all 0.15s;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
}
.btn:hover { border-color: var(--accent); color: var(--accent); }
.btn-primary { background: var(--accent-dim); color: #fff; border-color: var(--accent-dim); }
.btn-primary:hover { background: var(--accent); }

.theme-toggle {
  position: fixed; top: 16px; right: 16px; z-index: 100;
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--surface-raised); border: 1px solid var(--border);
  cursor: pointer; font-size: 18px; display: flex; align-items: center; justify-content: center;
  transition: background 0.2s;
}
.theme-toggle:hover { background: var(--accent-dim); }

/* === Panels / Cards === */
.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: clamp(20px, 3vw, 32px);
  margin-bottom: 28px;
}

.panel h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.3rem, 2.5vw, 1.7rem);
  font-weight: 600;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.panel h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 20px 0 8px;
  color: var(--accent);
}

.panel p, .panel li {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
}

.panel ul { padding-left: 20px; margin: 8px 0; }
.panel li { margin-bottom: 6px; }

/* === Key Finding Callout === */
.callout {
  background: var(--surface-raised);
  border-left: 4px solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 20px 24px;
  margin: 20px 0;
}
.callout p { color: var(--text); font-size: 1rem; }
.callout strong { color: var(--accent); }
.callout.finding { border-left-color: var(--mmf); }
.callout.finding strong { color: var(--mmf); }
.callout.caution { border-left-color: var(--tga-up); }
.callout.caution strong { color: var(--tga-up); }

/* === Stats Grid === */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin: 20px 0;
}

.stat-card {
  background: var(--surface-raised);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
}

.stat-card .value {
  font-family: var(--font-mono);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 700;
  line-height: 1.1;
}

.stat-card .label {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 6px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stat-card.mmf .value { color: var(--mmf); }
.stat-card.onrrp .value { color: var(--onrrp); }
.stat-card.sig .value { color: var(--sig-star); }
.stat-card.events .value { color: var(--tga-up); }

/* === Figure === */
.figure {
  margin: 24px 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
}

.figure img {
  width: 100%;
  display: block;
  background: #fff;
}

.figure figcaption {
  padding: 12px 16px;
  font-size: 0.85rem;
  color: var(--text-muted);
  background: var(--surface-raised);
  border-top: 1px solid var(--border);
}

/* === Tables === */
.table-wrap { overflow-x: auto; margin: 16px 0; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

th {
  text-align: left;
  padding: 10px 14px;
  background: var(--surface-raised);
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  border-bottom: 2px solid var(--border);
  white-space: nowrap;
}

td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
}

tr:hover td { background: var(--surface-raised); }

td.sig { color: var(--sig-star); font-weight: 600; }
td.mmf { color: var(--mmf); }
td.onrrp { color: var(--onrrp); }
td.num { font-family: var(--font-mono); text-align: right; }

/* === Section Divider === */
.section-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
  margin: 48px 0;
}

/* === Data Source Cards === */
.source-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin: 16px 0;
}

.source-card {
  background: var(--surface-raised);
  border-radius: var(--radius);
  padding: 16px;
  border: 1px solid var(--border);
}

.source-card .source-name {
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 4px;
}

.source-card .source-detail {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.source-card .source-freq {
  display: inline-block;
  background: var(--accent-dim);
  color: #fff;
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: 4px;
  margin-top: 8px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

/* === Pre-trend Scorecard === */
.pretrend-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  margin: 16px 0;
}

.pretrend-card {
  background: var(--surface-raised);
  border-radius: var(--radius);
  padding: 14px 16px;
  border: 1px solid var(--border);
}

.pretrend-label {
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 8px;
}

.pretrend-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.82rem;
  margin: 3px 0;
}

.pretrend-spec { color: var(--text-muted); }
.pretrend-count { font-family: var(--font-mono); font-weight: 600; }
.pretrend-count.good { color: var(--onrrp); }
.pretrend-count.bad { color: var(--bank-ta, #ef4444); }
.pretrend-count.warn { color: var(--deposits); }

/* === Chart Captions === */
.chart-caption {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 4px;
  line-height: 1.5;
}

/* === IRF Grid responsive === */
#chart-irf-grid {
  margin: 16px 0;
}

@media (max-width: 900px) {
  #chart-irf-grid, #chart-regime-grid { grid-template-columns: repeat(2, 1fr) !important; }
}
@media (max-width: 600px) {
  #chart-irf-grid, #chart-regime-grid { grid-template-columns: 1fr !important; }
}

/* === Footer === */
footer {
  padding: 40px 0;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}

footer a { color: var(--accent); text-decoration: none; }
footer a:hover { text-decoration: underline; }

/* === Responsive === */
@media (max-width: 768px) {
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .source-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .stat-grid { grid-template-columns: 1fr; }
  .hero-buttons { flex-direction: column; align-items: center; }
}