:root {
  --bg: #0f172a; --card: #1e293b; --text: #e2e8f0; --muted: #94a3b8; --line: #334155;
  --h3: #22c55e; --h2: #3b82f6; --h1: #f59e0b; --unknown: #64748b; --accent: #7dd3fc; --danger: #ef4444;
}
@media (prefers-color-scheme: light) {
  :root { --bg: #f1f5f9; --card: #ffffff; --text: #0f172a; --muted: #475569; --line: #cbd5e1; }
}
* { box-sizing: border-box; }
body { margin: 0; font-family: system-ui, -apple-system, "Segoe UI", sans-serif; background: var(--bg); color: var(--text); }
header { padding: 24px 16px 8px; max-width: 1100px; margin: 0 auto; position: relative; }
header h1 { margin: 0; font-size: 1.6rem; }
header h1 span { color: var(--accent); font-weight: 400; }
header p { color: var(--muted); margin: 6px 0 0; max-width: 780px; }
.session { position: absolute; right: 16px; top: 24px; display: flex; gap: 10px; align-items: center; }
main { max-width: 1100px; margin: 0 auto; padding: 16px; display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.hidden { display: none !important; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 16px; }
.card.wide { grid-column: 1 / -1; }
.card.narrow { max-width: 420px; margin: 40px auto; grid-column: 1 / -1; }
.card h2 { margin: 0 0 12px; font-size: 1.1rem; }
.row { display: flex; align-items: center; gap: 10px; margin: 6px 0; flex-wrap: wrap; }
.label { color: var(--muted); min-width: 160px; }
.mono, code, pre { font-family: ui-monospace, Consolas, monospace; font-size: 0.9rem; }
.badge { display: inline-block; padding: 3px 10px; border-radius: 999px; font-weight: 600; font-size: 0.85rem; color: #fff; background: var(--unknown); }
.badge.h3 { background: var(--h3); }
.badge.h2 { background: var(--h2); }
.badge.h1 { background: var(--h1); }
.hint { color: var(--muted); font-size: 0.9rem; line-height: 1.4; }
.error { color: var(--danger); font-size: 0.9rem; }
.json { background: rgba(0,0,0,.25); padding: 10px; border-radius: 8px; overflow: auto; max-height: 200px; margin: 8px 0; }
button { background: var(--accent); color: #0f172a; border: 0; border-radius: 8px; padding: 8px 14px; font-weight: 600; cursor: pointer; }
button.secondary { background: transparent; color: var(--text); border: 1px solid var(--line); }
button.danger { background: var(--danger); color: #fff; }
button.small { padding: 4px 10px; font-size: 0.85rem; }
button:hover { filter: brightness(1.1); }
input { padding: 8px; border-radius: 8px; border: 1px solid var(--line); background: transparent; color: var(--text); width: 100%; }
.stack { display: grid; gap: 10px; }
.stack label { display: grid; gap: 4px; font-size: 0.9rem; color: var(--muted); }
.form { display: grid; grid-template-columns: 1fr 120px auto auto; gap: 8px; margin-top: 8px; }
table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
th, td { text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-weight: 600; }
.actions-cell { white-space: nowrap; text-align: right; }
details { margin: 8px 0; }
summary { cursor: pointer; color: var(--accent); }
@media (max-width: 600px) { .form { grid-template-columns: 1fr; } .label { min-width: 0; } .session { position: static; margin-top: 8px; } }