:root {
  --bg: #0f1b2d;
  --panel: #16263f;
  --panel-alt: #1d3252;
  --text: #eaf1fb;
  --muted: #93a6c2;
  --accent: #4fb0ff;
  --hot: #ff6b5e;
  --cold: #5ec8ff;
  --warn-bg: #4a3113;
  --warn-text: #ffcf8a;
  --ok: #6fdc9a;
  --border: #26395a;
  --radius: 12px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Sarabun", "Noto Sans Thai", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.app-header {
  padding: 20px 16px 8px;
  text-align: center;
}
.app-header h1 { margin: 0 0 4px; font-size: 1.4rem; }
.subtitle { margin: 0; color: var(--muted); font-size: 0.85rem; }

.tabs {
  display: flex;
  gap: 6px;
  padding: 12px 12px 0;
  overflow-x: auto;
}
.tab-btn {
  flex: none;
  padding: 10px 16px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  font-size: 0.9rem;
  cursor: pointer;
}
.tab-btn[aria-selected="true"] {
  background: var(--accent);
  color: #06172b;
  border-color: var(--accent);
  font-weight: 700;
}

main { padding: 16px; max-width: 720px; margin: 0 auto; }

.sub-tabs { display: flex; gap: 6px; margin-bottom: 12px; flex-wrap: wrap; }
.sub-tab-btn {
  padding: 6px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--panel-alt);
  color: var(--text);
  font-size: 0.85rem;
  cursor: pointer;
}
.sub-tab-btn[aria-selected="true"] { background: var(--accent); color: #06172b; font-weight: 700; }

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 14px;
}
.card h2 { margin: 0 0 10px; font-size: 1rem; color: var(--accent); }

.freshness {
  font-size: 0.78rem;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 4px;
  margin-bottom: 12px;
}
.freshness.stale { color: var(--warn-text); }

.stale-banner {
  background: var(--warn-bg);
  color: var(--warn-text);
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 0.82rem;
  margin-bottom: 12px;
}

.latest-numbers { display: flex; gap: 10px; flex-wrap: wrap; }
.number-pill {
  background: var(--panel-alt);
  border-radius: 8px;
  padding: 8px 14px;
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.format-toggle { display: flex; gap: 6px; margin-bottom: 10px; }
.format-toggle button {
  padding: 5px 12px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--panel-alt);
  color: var(--text);
  cursor: pointer;
  font-size: 0.82rem;
}
.format-toggle button[aria-pressed="true"] { background: var(--accent); color: #06172b; font-weight: 700; }

.number-grid { display: flex; flex-wrap: wrap; gap: 8px; }
.number-chip {
  border-radius: 8px;
  padding: 6px 10px;
  font-size: 0.9rem;
  font-family: "Courier New", monospace;
  min-width: 44px;
  text-align: center;
}
.number-chip.hot { background: color-mix(in srgb, var(--hot) 25%, var(--panel-alt)); border: 1px solid var(--hot); }
.number-chip.cold { background: color-mix(in srgb, var(--cold) 20%, var(--panel-alt)); border: 1px solid var(--cold); }
.number-chip .count { display: block; font-size: 0.68rem; color: var(--muted); }

.suggest-result {
  margin-top: 12px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.disclaimer {
  font-size: 0.78rem;
  color: var(--muted);
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px dashed var(--border);
}

.accuracy-toggle {
  background: none;
  border: 1px solid var(--border);
  color: var(--accent);
  border-radius: 8px;
  padding: 8px 12px;
  cursor: pointer;
  font-size: 0.85rem;
}
.accuracy-body { margin-top: 12px; display: none; }
.accuracy-body.open { display: block; }
.accuracy-stat { display: flex; justify-content: space-between; padding: 6px 0; border-bottom: 1px solid var(--border); font-size: 0.9rem; }
.accuracy-verdict { margin-top: 10px; padding: 10px; background: var(--panel-alt); border-radius: 8px; font-size: 0.85rem; }

.app-footer {
  text-align: center;
  color: var(--muted);
  font-size: 0.75rem;
  padding: 20px 16px 32px;
}

@media (min-width: 700px) {
  .number-grid { max-width: 560px; }
}