:root {
  --bg: #0c1118;
  --panel: #141c26;
  --panel-2: #192431;
  --border: #293746;
  --text: #edf3f8;
  --muted: #8ea0b2;
  --accent: #66d9c1;
  --yellow: #f0c45a;
  --orange: #ec8e53;
  --red: #df6262;
  --green: #6ed28f;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--text);
  background: radial-gradient(circle at 15% 0%, #172536 0, var(--bg) 38%);
  font: 15px/1.5 Inter, Segoe UI, Arial, sans-serif;
}
button { font: inherit; }
.topbar {
  min-height: 92px;
  padding: 20px max(24px, calc((100vw - 1240px) / 2));
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border);
}
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 0; font-size: 28px; letter-spacing: -.04em; }
h2 { margin-bottom: 0; font-size: 22px; letter-spacing: -.025em; }
.eyebrow { color: var(--accent); font-size: 11px; letter-spacing: .16em; font-weight: 700; }
.muted { color: var(--muted); }
.top-actions { display: flex; align-items: center; gap: 14px; }
button {
  color: var(--text);
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 9px 14px;
  cursor: pointer;
}
button:hover { border-color: var(--accent); }
button:disabled { opacity: .55; cursor: wait; }
.tabs {
  padding: 0 max(24px, calc((100vw - 1240px) / 2));
  border-bottom: 1px solid var(--border);
  display: flex;
  gap: 4px;
}
.tab { border: 0; border-radius: 0; background: transparent; color: var(--muted); padding: 13px 15px; }
.tab.active { color: var(--text); box-shadow: inset 0 -2px var(--accent); }
main { max-width: 1240px; margin: 0 auto; padding: 28px 24px 60px; }
.page { display: none; }
.page.active { display: block; }
.card {
  background: linear-gradient(145deg, rgba(25,36,49,.96), rgba(18,26,36,.96));
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  box-shadow: 0 16px 40px rgba(0,0,0,.15);
}
.hero-grid { display: grid; grid-template-columns: 1.1fr 1.3fr .8fr; gap: 16px; }
.score-row { display: flex; align-items: center; gap: 20px; }
.big-score { font-size: 74px; line-height: 1; font-weight: 750; letter-spacing: -.07em; }
.regime { font-size: 20px; font-weight: 700; }
.card-label { color: var(--muted); margin-bottom: 15px; font-size: 13px; text-transform: uppercase; letter-spacing: .08em; }
.meter { margin-top: 22px; height: 7px; overflow: hidden; background: #26313d; border-radius: 100px; }
.meter span { display: block; width: 0; height: 100%; border-radius: inherit; background: var(--accent); transition: width .4s; }
.risk-note { color: #bfd1dc; font-size: 12px; margin: 14px 0 0; }
.recommendation { font-size: 22px; line-height: 1.35; font-weight: 650; margin-bottom: 13px; }
.overview-explain-card { cursor: pointer; transition: transform .18s, border-color .18s, background .18s; }
.overview-explain-card:hover, .overview-explain-card:focus-visible { transform: translateY(-3px); border-color: var(--accent); background: linear-gradient(145deg, rgba(28,44,57,.98), rgba(18,29,39,.98)); outline: none; }
.overview-explain-card::after { content: "Відкрити пояснення →"; display: block; color: var(--accent); font-size: 11px; margin-top: 18px; opacity: .85; }
.compact-stats { display: grid; gap: 12px; }
.compact-stats div { display: flex; justify-content: space-between; gap: 10px; border-bottom: 1px solid var(--border); padding-bottom: 10px; }
.compact-stats div:last-child { border: 0; }
.compact-stats span { color: var(--muted); }
.action-overview { margin-top: 16px; display: grid; gap: 16px; border-color: #3d625f; }
.action-overview-head { display: grid; grid-template-columns: minmax(0,1fr) minmax(260px,.48fr); gap: 16px; align-items: start; }
.action-overview-head h2 { margin: 4px 0 6px; }
.trust-note { color: #c6d5e2; background: rgba(102,217,193,.06); border: 1px solid var(--border); border-radius: 8px; padding: 12px; font-size: 12px; }
.action-metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.action-metric { background: rgba(255,255,255,.025); border: 1px solid var(--border); border-radius: 8px; padding: 11px; }
.action-metric span, .action-metric small { display: block; color: var(--muted); font-size: 11px; }
.action-metric strong { display: block; margin: 4px 0; font-size: 20px; }
.delta-up { color: var(--orange) !important; }
.delta-down { color: var(--green) !important; }
.delta-flat { color: var(--muted) !important; }
.driver-list { display: grid; gap: 8px; }
.driver-item { display: flex; justify-content: space-between; gap: 16px; align-items: center; border: 1px solid var(--border); border-radius: 8px; padding: 10px 12px; background: rgba(255,255,255,.02); }
.driver-item span { display: block; color: var(--muted); font-size: 12px; margin-top: 2px; }
.driver-item b { white-space: nowrap; }
.section-head { margin: 34px 0 15px; display: flex; justify-content: space-between; align-items: end; }
.block-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.block-card { min-height: 150px; cursor: pointer; transition: transform .18s, border-color .18s, background .18s; }
.block-card:hover, .block-card:focus-visible { transform: translateY(-3px); border-color: var(--accent); background: linear-gradient(145deg, rgba(28,44,57,.98), rgba(18,29,39,.98)); outline: none; }
.block-card::after { content: "Відкрити пояснення →"; display: block; color: var(--accent); font-size: 11px; margin-top: 14px; opacity: .85; }
.block-score { font-size: 30px; font-weight: 750; margin-bottom: 9px; }
.block-bar { height: 5px; background: #26313d; border-radius: 30px; overflow: hidden; margin: 12px 0; }
.block-bar span { display: block; height: 100%; background: var(--accent); }
.block-meta { display: flex; justify-content: space-between; color: var(--muted); font-size: 12px; }
.chart-card { padding: 12px; }
.chart-scope { padding: 8px 10px 0; font-size: 12px; }
#trendChart { width: 100%; height: 260px; display: block; }
.chart-line { fill: none; stroke: var(--accent); stroke-width: 3; }
.chart-area { fill: url(#chartGradient); }
.chart-grid { stroke: #283542; stroke-width: 1; }
.chart-label { fill: var(--muted); font-size: 11px; }
.table-wrap { overflow-x: auto; padding: 0; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 13px 15px; border-bottom: 1px solid var(--border); white-space: nowrap; }
th { color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: .08em; }
tbody tr { cursor: pointer; }
tbody tr:hover { background: rgba(102,217,193,.05); }
.pill { border-radius: 100px; padding: 4px 9px; display: inline-block; font-size: 12px; border: 1px solid var(--border); }
.version-pill { border-radius: 6px; padding: 3px 7px; display: inline-block; color: #c9d7e1; background: rgba(255,255,255,.04); border: 1px solid var(--border); font-size: 12px; }
.kind-live { color: var(--green); }
.kind-reconstructed { color: var(--yellow); }
.source-ok { color: var(--green); }
.source-stale { color: var(--yellow); }
.source-missing { color: var(--red); }
.risk-on { color: var(--green); }
.normal-late-cycle, .caution { color: var(--yellow); }
.stress { color: var(--orange); }
.break { color: var(--red); }
.verification-grid { grid-template-columns: repeat(4, 1fr); margin-bottom: 16px; }
.metric-value { font-size: 32px; font-weight: 750; }
.metric-card { min-height: 135px; }
.metric-note { color: var(--muted); font-size: 12px; margin-top: 6px; }
.filter-bar { display: flex; align-items: end; gap: 14px; margin-bottom: 16px; flex-wrap: wrap; }
.filter-bar label { display: grid; gap: 5px; color: var(--muted); font-size: 12px; }
.filter-bar select { color: var(--text); background: #101821; border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; min-width: 150px; }
.filter-bar select:focus { outline: 1px solid var(--accent); border-color: var(--accent); }
.backfill-actions { display: flex; align-items: end; gap: 12px; margin: 16px 0; flex-wrap: wrap; }
.backfill-actions label { display: grid; gap: 5px; color: var(--muted); font-size: 12px; }
.backfill-actions input { color: var(--text); background: #101821; border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; min-width: 150px; }
.backfill-actions input:focus { outline: 1px solid var(--accent); border-color: var(--accent); }
.validation-note { margin: -4px 0 16px; }
.limitation-list { margin-bottom: 16px; color: #c2cfda; }
.limitation-list strong { color: var(--accent); }
.limitation-list ul { margin: 8px 0 0; padding-left: 20px; }
.limitation-list li { margin: 4px 0; }
.detail-card { margin-top: 16px; }
.component-list { display: grid; gap: 8px; margin-top: 18px; }
.component { display: grid; grid-template-columns: 1fr 92px 1.5fr; gap: 12px; padding: 11px 0; border-bottom: 1px solid var(--border); }
.component strong small { display: block; margin-top: 2px; color: var(--muted); font-size: 10px; font-weight: 600; white-space: normal; }
.prose { max-width: 780px; }
.prose p { color: #bdc9d4; font-size: 16px; }
.back-button { margin-bottom: 18px; }
.education-hero { display: grid; grid-template-columns: minmax(0,1.5fr) minmax(280px,.7fr); gap: 16px; }
.education-hero h2 { font-size: 34px; margin: 5px 0 8px; }
.education-question { font-size: 19px; color: #c6d5e2; max-width: 780px; }
.education-score { display: flex; align-items: center; gap: 18px; margin-top: 22px; }
.education-score strong { font-size: 52px; letter-spacing: -.05em; }
.education-stat-grid { display: grid; gap: 10px; }
.education-stat { display: flex; justify-content: space-between; gap: 15px; border-bottom: 1px solid var(--border); padding-bottom: 9px; }
.education-stat span { color: var(--muted); }
.learning-grid { display: grid; grid-template-columns: 1.25fr .75fr; gap: 16px; margin-top: 16px; }
.lesson-card h3 { margin-bottom: 10px; }
.lesson-card p, .lesson-card li { color: #c2cfda; }
.lesson-card ul { padding-left: 20px; margin-bottom: 0; }
.causal-chain { padding: 15px; border-left: 3px solid var(--accent); background: rgba(102,217,193,.05); color: #cce1dc; margin-top: 14px; }
.decision-scale { display: grid; gap: 9px; margin-top: 14px; }
.decision-scale-row { display: grid; grid-template-columns: 105px 1fr; gap: 12px; align-items: center; padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px; background: rgba(255,255,255,.02); }
.decision-scale-row strong { color: var(--accent); }
.decision-scale-row.active { border-color: var(--accent); background: rgba(102,217,193,.08); }
.decision-scale-row span { color: #c2cfda; }
.education-components { display: grid; gap: 12px; margin-top: 16px; }
.education-component { padding: 18px; }
.component-head { display: flex; justify-content: space-between; gap: 15px; align-items: start; }
.component-head h3 { margin-bottom: 3px; }
.component-score-large { font-size: 28px; font-weight: 750; text-align: right; }
.score-label { display: block; margin-top: 2px; color: var(--muted); font-size: 11px; font-weight: 650; letter-spacing: 0; }
.component-explain-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 14px; }
.explain-box { background: rgba(255,255,255,.025); border: 1px solid var(--border); border-radius: 8px; padding: 12px; }
.explain-box span { display: block; color: var(--accent); font-size: 10px; letter-spacing: .1em; font-weight: 700; text-transform: uppercase; margin-bottom: 5px; }
.student-note { display: grid; gap: 4px; margin-top: 12px; padding: 12px; border: 1px solid rgba(102,217,193,.28); border-radius: 8px; background: rgba(102,217,193,.06); color: #c9ddd8; }
.student-note strong { color: var(--accent); }
.student-note span { display: block; }
.student-note small { display: block; color: var(--muted); line-height: 1.45; }
.input-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 8px; margin-top: 12px; }
.input-card { border: 1px solid var(--border); border-radius: 7px; padding: 10px; }
.input-card strong, .input-card span { display: block; }
.input-card span { color: var(--muted); font-size: 11px; }
.source-link { display: inline-block; color: var(--accent); font-size: 11px; margin-top: 6px; text-decoration: none; }
.source-link:hover { text-decoration: underline; }
.raw-observation { margin-top: 12px; padding: 9px 11px; background: rgba(102,217,193,.05); border-radius: 7px; color: #bdd5d0; }
.proxy-note { display: inline-block; margin-top: 9px; color: var(--yellow); font-size: 12px; }
.history-analysis { display: grid; gap: 14px; }
.chart-loading { color: var(--muted); text-align: center; padding: 42px; }
.history-subhead { display: flex; justify-content: space-between; align-items: end; gap: 20px; margin-top: 10px; }
.history-subhead h3 { margin-bottom: 0; }
.history-subhead span { color: var(--muted); max-width: 620px; text-align: right; font-size: 13px; }
.history-chart-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.historical-chart-card { min-width: 0; padding: 16px; }
.historical-chart-card.block { border-color: #3d625f; }
.historical-chart-card.source { background: linear-gradient(145deg, rgba(20,31,43,.96), rgba(15,23,32,.96)); }
.historical-chart-head { display: flex; justify-content: space-between; align-items: start; gap: 18px; }
.historical-chart-head h3 { margin-bottom: 3px; }
.historical-chart-head p { color: var(--muted); font-size: 12px; margin-bottom: 0; max-width: 650px; }
.historical-chart-head > strong { color: var(--accent); font-size: 20px; white-space: nowrap; }
.historical-chart-head small { color: var(--muted); font-size: 11px; }
.chart-stat-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(95px, 1fr)); gap: 6px; margin: 14px 0 4px; }
.chart-stat-row span { border: 1px solid var(--border); border-radius: 6px; padding: 6px 8px; color: #c5d2dd; font-size: 11px; min-width: 0; }
.chart-stat-row b { display: block; color: var(--muted); font-size: 9px; text-transform: uppercase; letter-spacing: .06em; margin-bottom: 2px; }
.chart-stat-row .stat-watch { border-color: #7c693b; color: var(--yellow); }
.chart-stat-row .stat-alert { border-color: #793e43; color: var(--red); }
.historical-chart { width: 100%; height: 250px; display: block; margin-top: 8px; }
.deviation-band { fill: rgba(102,217,193,.075); }
.mean-line { stroke: #8193a3; stroke-width: 1; stroke-dasharray: 5 5; }
.current-point { fill: var(--accent); stroke: #d9fff7; stroke-width: 2; }
.stats-guide { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; color: #c2cfda; }
.stats-guide strong { grid-column: 1 / -1; color: var(--accent); }
.stats-guide span { font-size: 12px; }
.documentation-page { display: grid; gap: 16px; }
.doc-hero { display: grid; grid-template-columns: minmax(0, 1fr) 280px; gap: 16px; }
.doc-title-card h2 { font-size: 34px; margin: 6px 0 8px; }
.doc-title-card p { color: #c2cfda; font-size: 17px; max-width: 820px; margin-bottom: 0; }
.sync-card { display: grid; gap: 8px; align-content: start; }
.sync-card strong { color: var(--accent); font-size: 24px; }
.sync-card span { color: var(--muted); }
.doc-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.doc-section h3, .doc-mini-card h3, .roadmap-item h3, .sync-policy h3 { margin-bottom: 8px; }
.doc-section p, .doc-section li, .doc-mini-card p, .roadmap-item p, .roadmap-item li, .sync-policy p, .sync-policy li { color: #c2cfda; }
.doc-section ul, .roadmap-item ul, .sync-policy ul { margin: 8px 0 0; padding-left: 20px; }
.doc-two-column { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.regime-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 12px; margin-top: 16px; }
.doc-mini-card { min-height: 190px; }
.roadmap-list { display: grid; gap: 12px; }
.roadmap-head { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.roadmap-head h3 { margin: 0; }
.sync-policy { border-color: #3d625f; }
.sync-policy code { display: inline-block; margin-top: 8px; color: var(--accent); background: rgba(102,217,193,.06); border: 1px solid var(--border); border-radius: 6px; padding: 6px 8px; }
.empty { text-align: center; padding: 90px 20px; }
.hidden { display: none !important; }
.update-panel {
  margin-bottom: 24px;
  border-color: #35566a;
  background: linear-gradient(145deg, rgba(18,34,45,.98), rgba(14,23,32,.98));
}
.update-head { display: flex; justify-content: space-between; gap: 20px; align-items: start; }
.update-head h2 { margin-top: 3px; }
.update-percent { font-size: 36px; font-weight: 750; color: var(--accent); }
.update-progress { height: 8px; background: #26313d; border-radius: 100px; overflow: hidden; margin: 17px 0; }
.update-progress span { display: block; height: 100%; width: 0; background: var(--accent); transition: width .35s; }
.live-metrics { display: grid; grid-template-columns: repeat(5, 1fr); gap: 8px; margin-bottom: 18px; }
.live-metric { text-align: left; background: rgba(255,255,255,.025); border: 1px solid var(--border); border-radius: 8px; padding: 10px; }
.live-metric:hover, .live-metric:focus-visible { border-color: var(--accent); background: rgba(102,217,193,.07); outline: none; }
.live-metric.active { border-color: var(--accent); box-shadow: inset 0 0 0 1px rgba(102,217,193,.35); background: rgba(102,217,193,.1); }
.live-metric span { display: block; color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: .06em; }
.live-metric strong { display: block; margin-top: 4px; font-size: 17px; }
.update-summary { margin-bottom: 16px; }
.summary-alert { display: grid; gap: 4px; border: 1px solid var(--border); border-radius: 8px; padding: 12px; background: rgba(102,217,193,.06); }
.summary-alert strong { color: var(--accent); }
.summary-alert span { color: #c6d5e2; }
.update-log-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }
.update-log-actions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: flex-end; }
.small-button { padding: 5px 10px; font-size: 12px; }
.update-events { max-height: 480px; overflow-y: auto; border-top: 1px solid var(--border); }
.update-event { display: grid; grid-template-columns: 70px 14px minmax(0,1fr); gap: 10px; padding: 11px 0; border-bottom: 1px solid var(--border); }
.event-time { color: var(--muted); font-size: 12px; padding-top: 2px; }
.event-dot { width: 9px; height: 9px; margin-top: 5px; border-radius: 50%; background: var(--accent); }
.event-dot.warning { background: var(--yellow); }
.event-dot.error { background: var(--red); }
.event-dot.block { background: var(--orange); }
.event-dot.result, .event-dot.success { background: var(--green); }
.event-title { font-weight: 650; }
.event-message { color: var(--muted); margin-top: 2px; }
.event-data { margin-top: 7px; display: flex; gap: 6px; flex-wrap: wrap; }
.event-chip { border: 1px solid var(--border); border-radius: 5px; padding: 2px 6px; color: #b9c8d5; font-size: 11px; }
.event-components { margin-top: 7px; display: grid; gap: 3px; }
.event-component { display: flex; justify-content: space-between; gap: 12px; color: var(--muted); font-size: 12px; }
.empty-log-state { color: var(--muted); padding: 18px 0; }

@media (max-width: 920px) {
  .hero-grid, .block-grid { grid-template-columns: 1fr 1fr; }
  .action-overview-head, .action-metrics { grid-template-columns: 1fr 1fr; }
  .verification-grid { grid-template-columns: 1fr 1fr; }
  .live-metrics { grid-template-columns: repeat(3, 1fr); }
  .education-hero, .learning-grid { grid-template-columns: 1fr; }
  .doc-hero, .doc-grid, .doc-two-column { grid-template-columns: 1fr; }
  .regime-grid { grid-template-columns: 1fr 1fr; }
  .history-chart-grid { grid-template-columns: 1fr; }
  .chart-stat-row { grid-template-columns: repeat(3, 1fr); }
  .stats-guide { grid-template-columns: 1fr; }
}
@media (max-width: 620px) {
  .topbar { align-items: flex-start; gap: 18px; }
  .top-actions { flex-direction: column; align-items: flex-end; }
  .tabs { overflow-x: auto; }
  .hero-grid, .block-grid, .verification-grid, .action-overview-head, .action-metrics { grid-template-columns: 1fr; }
  .driver-item { align-items: flex-start; display: grid; }
  .big-score { font-size: 58px; }
  main { padding-left: 14px; padding-right: 14px; }
  .live-metrics { grid-template-columns: 1fr 1fr; }
  .update-event { grid-template-columns: 14px minmax(0,1fr); }
  .event-time { display: none; }
  .component-explain-grid, .input-grid { grid-template-columns: 1fr; }
  .history-subhead { display: block; }
  .history-subhead span { display: block; text-align: left; margin-top: 4px; }
  .historical-chart-head { display: block; }
  .historical-chart-head > strong { display: block; margin-top: 8px; }
  .chart-stat-row { grid-template-columns: 1fr 1fr; }
  .regime-grid { grid-template-columns: 1fr; }
}