:root {
  color-scheme: dark;
  --bg: #0b1020;
  --panel: #121a31;
  --panel-2: #18223f;
  --line: #2d3a66;
  --text: #e8edf8;
  --muted: #9fb0d8;
  --accent: #7aa2ff;
  --good: #6fda9c;
  --warn: #ffcf66;
  --danger: #ff8e8e;
  --shadow: 0 12px 30px rgba(0, 0, 0, 0.25);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
body { margin: 0; background: linear-gradient(180deg, #0b1020 0%, #0d1427 100%); color: var(--text); }
button, input, textarea, select { font: inherit; }
button { cursor: pointer; }
.topic-switch { width: 100%; text-align: left; padding: 12px; border-radius: 12px; border: 1px solid var(--line); background: var(--panel-2); color: var(--text); }
.topic-switch.supported { border-color: rgba(111, 218, 156, 0.5); }
.lang-toggle.active { border-color: rgba(122, 162, 255, 0.8); background: rgba(122, 162, 255, 0.18); }
.app-shell { min-height: 100vh; display: grid; grid-template-columns: 280px 1fr 320px; grid-template-rows: auto 1fr auto; grid-template-areas: "header header header" "nav main assist" "footer footer footer"; }
.header { grid-area: header; padding: 24px 28px 20px; border-bottom: 1px solid var(--line); background: rgba(7, 11, 22, 0.75); backdrop-filter: blur(10px); }
.header h1 { margin: 0 0 8px; font-size: 28px; }
.header p { margin: 0; color: var(--muted); max-width: 980px; line-height: 1.5; }
.panel { padding: 20px; }
.nav { grid-area: nav; border-right: 1px solid var(--line); background: rgba(8, 13, 26, 0.92); }
.main { grid-area: main; padding: 20px; }
.assist { grid-area: assist; border-left: 1px solid var(--line); background: rgba(8, 13, 26, 0.92); }
.footer { grid-area: footer; padding: 18px 20px 24px; border-top: 1px solid var(--line); }
.card, .badge-card, .summary-card, .form-card { background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 16px; box-shadow: var(--shadow); }
.stack { display: grid; gap: 14px; }
.section-title { margin: 0 0 12px; font-size: 13px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); }
.object-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.card h3, .summary-card h3, .badge-card h3, .form-card h3 { margin: 0 0 10px; font-size: 16px; }
.card p, .summary-card p, .badge-card p, .form-card p, li, label, small { color: var(--muted); line-height: 1.5; }
.meta-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.badge { display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border-radius: 999px; font-size: 12px; background: var(--panel-2); border: 1px solid var(--line); color: var(--text); }
.badge.supported { border-color: rgba(111, 218, 156, 0.5); color: var(--good); }
.badge.contested { border-color: rgba(255, 142, 142, 0.5); color: var(--danger); }
.badge.open { border-color: rgba(255, 207, 102, 0.5); color: var(--warn); }
.trace-list, .clean-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.trace-link { color: var(--accent); text-decoration: none; }
.trace-link:hover { text-decoration: underline; }
.hero-grid { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 16px; margin-bottom: 18px; }
.kpi { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.08em; }
.kpi strong { display: block; margin-top: 6px; font-size: 22px; color: var(--text); letter-spacing: 0; }
.form-card form { display: grid; gap: 10px; }
.form-card textarea, .form-card input, .form-card select { width: 100%; padding: 10px 12px; border-radius: 10px; border: 1px solid var(--line); background: #0d1630; color: var(--text); }
.button-row { display: flex; gap: 10px; flex-wrap: wrap; }
.primary-btn, .ghost-btn { border-radius: 10px; border: 1px solid var(--line); padding: 10px 14px; }
.primary-btn { background: var(--accent); color: #08101f; border-color: transparent; font-weight: 600; }
.ghost-btn { background: transparent; color: var(--text); }
.inline-note { margin-top: 8px; font-size: 13px; }
@media (max-width: 1200px) {
  .app-shell { grid-template-columns: 1fr; grid-template-areas: "header" "nav" "main" "assist" "footer"; }
  .nav, .assist { border: 0; border-top: 1px solid var(--line); }
  .object-grid, .hero-grid { grid-template-columns: 1fr; }
}