:root {
  color-scheme: dark;
  --bg: #0b1020;
  --panel: #121933;
  --panel-2: #0f1630;
  --line: #243157;
  --line-strong: #33467c;
  --text: #edf2ff;
  --muted: #93a1c6;
  --accent: #6ea8fe;
  --accent-soft: rgba(110, 168, 254, 0.14);
  --good: #2ecc71;
  --good-soft: rgba(46, 204, 113, 0.12);
  --bad: #ff6b6b;
  --bad-soft: rgba(255, 107, 107, 0.12);
  --warn: #f6c453;
  --warn-soft: rgba(246, 196, 83, 0.14);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: Inter, system-ui, sans-serif;
  background: linear-gradient(180deg, #09101f, #0d1430 35%, #08101e);
  color: var(--text);
  font-size: 16px;
  line-height: 1.45;
}

.page {
  width: min(1440px, calc(100% - 32px));
  margin: 24px auto 56px;
  display: grid;
  gap: 20px;
}

.card {
  background: rgba(18, 25, 51, 0.94);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 22px;
  box-shadow: 0 18px 56px rgba(0, 0, 0, 0.24);
}

.tab-shell {
  display: grid;
  gap: 14px;
}

.tab-bar {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.tab-button {
  width: auto;
  margin-top: 0;
  padding: 11px 16px;
  border-radius: 999px;
  background: #0b1430;
  color: var(--muted);
  border: 1px solid var(--line);
}

.tab-button.active {
  background: var(--accent);
  color: #06111f;
  border-color: transparent;
}

.tab-note {
  font-size: 0.9rem;
}

.tab-panel {
  display: none;
  gap: 20px;
}

.tab-panel.active {
  display: grid;
}

.hero, .grid, .triple-grid {
  display: grid;
  gap: 20px;
}

.research-stack {
  display: grid;
  gap: 20px;
}

.hero {
  grid-template-columns: 1.45fr 1fr;
  align-items: center;
}

.hero h1,
h2 {
  margin: 0 0 10px;
}

.hero h1 {
  font-size: 2rem;
  line-height: 1.15;
}

.hero p {
  margin: 0;
  color: var(--muted);
  max-width: 62ch;
  font-size: 1.02rem;
}

.hero-note {
  background: linear-gradient(180deg, rgba(9, 17, 34, 0.95), rgba(11, 20, 48, 0.92));
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 18px;
  display: grid;
  gap: 14px;
}

.hero-note-title,
.summary-title {
  font-weight: 700;
  font-size: 1rem;
}

.hero-pills,
.dataset-summary-badges {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.pill,
.mini-pill,
.status-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 7px 12px;
  font-size: 0.88rem;
  line-height: 1;
  background: rgba(8, 16, 34, 0.75);
}

.pill,
.mini-pill {
  color: var(--text);
}

.status-pill {
  min-height: 32px;
  color: var(--text);
}

.status-pill.good {
  border-color: rgba(46, 204, 113, 0.4);
  background: var(--good-soft);
  color: var(--good);
}

.status-pill.bad {
  border-color: rgba(255, 107, 107, 0.4);
  background: var(--bad-soft);
  color: var(--bad);
}

.status-pill.warn {
  border-color: rgba(246, 196, 83, 0.4);
  background: var(--warn-soft);
  color: var(--warn);
}

.eyebrow {
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  margin-bottom: 10px;
}

.grid {
  grid-template-columns: minmax(0, 1.18fr) minmax(360px, 0.98fr);
}

.triple-grid {
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr) minmax(0, 0.95fr);
  align-items: start;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 18px;
}

.status-pill-wrap {
  display: flex;
  align-items: flex-start;
}

label {
  font-size: 0.95rem;
  color: var(--muted);
}

input, select, textarea, button {
  width: 100%;
  margin-top: 8px;
  background: #081022;
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 14px;
  font: inherit;
}

input:focus,
select:focus,
textarea:focus,
button:focus,
summary:focus {
  outline: 2px solid rgba(110, 168, 254, 0.45);
  outline-offset: 2px;
}

textarea {
  resize: vertical;
  min-height: 132px;
}

button {
  cursor: pointer;
  background: var(--accent);
  color: #06111f;
  font-weight: 700;
  border: none;
}

button:hover {
  filter: brightness(1.05);
}

button.ghost {
  width: auto;
  background: transparent;
  color: var(--text);
  border: 1px solid var(--line);
}

button.small {
  padding: 9px 12px;
  font-size: 0.86rem;
}

.row {
  display: flex;
  align-items: center;
}

.row.gap { gap: 12px; }
.row.between { justify-content: space-between; }
.row.wrap { flex-wrap: wrap; align-items: flex-end; }
.compact-actions { justify-content: flex-end; }
.top-controls { margin: 16px 0 4px; }
.run-actions { align-items: center; margin-top: 16px; }
.helper-inline { color: var(--muted); font-size: 0.92rem; }
.checkbox { display: inline-flex; gap: 8px; align-items: center; color: var(--text); }
.checkbox input { width: auto; margin: 0; }
.hidden { display: none; }
.grow { flex: 1 1 320px; }
.tight { margin: 0; }
.inline-muted { display: block; margin-top: 4px; }
.summary-copy { display: grid; gap: 2px; }
.subtle-label { color: var(--muted); font-size: 0.84rem; }

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.metric {
  background: #0b1430;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 15px;
}

.metric .label {
  font-size: 0.83rem;
  color: var(--muted);
  margin-bottom: 8px;
}

.metric .value {
  font-size: 1.6rem;
  font-weight: 700;
  line-height: 1.15;
}

.metric.good .value { color: var(--good); }
.metric.bad .value { color: var(--bad); }

.dataset-summary {
  margin-bottom: 16px;
}

.dataset-summary-card {
  background: linear-gradient(180deg, rgba(12, 20, 44, 0.94), rgba(11, 20, 48, 0.88));
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 16px;
  display: grid;
  gap: 14px;
}

.dataset-summary-card.warn {
  border-color: rgba(246, 196, 83, 0.45);
}

.dataset-summary-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
  flex-wrap: wrap;
}

.dataset-summary-title {
  font-size: 1rem;
  font-weight: 700;
}

.dataset-summary-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 18px;
}

.dataset-summary-grid div {
  display: grid;
  gap: 4px;
}

.dataset-summary-grid span {
  color: var(--muted);
  font-size: 0.82rem;
}

.dataset-warning {
  color: var(--warn);
  font-size: 0.9rem;
}

.chart-wrap {
  position: relative;
  min-height: 420px;
}

.chart-wrap-small {
  min-height: 280px;
}

.chart {
  width: 100%;
  height: 420px;
}

.chart-small {
  height: 280px;
}

.muted {
  color: var(--muted);
  font-size: 0.93rem;
}

.verdict { margin-bottom: 14px; }

.verdict-row,
.wf-banner {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: #0b1430;
  flex-wrap: wrap;
}

.verdict-row.good,
.wf-banner.good { border-color: rgba(46, 204, 113, 0.45); background: var(--good-soft); }
.verdict-row.bad,
.wf-banner.bad { border-color: rgba(255, 107, 107, 0.45); background: var(--bad-soft); }

.verdict-tag {
  font-weight: 800;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
}

.verdict-row.good .verdict-tag,
.wf-banner.good .verdict-tag { color: var(--good); }
.verdict-row.bad .verdict-tag,
.wf-banner.bad .verdict-tag { color: var(--bad); }

.verdict-stat {
  color: var(--text);
  font-size: 0.93rem;
}

.verdict-note {
  color: var(--muted);
  font-size: 0.85rem;
  margin-top: 7px;
}

.details-card {
  overflow: hidden;
}

.details-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  cursor: pointer;
  list-style: none;
}

.details-summary::-webkit-details-marker {
  display: none;
}

.details-card[open] .details-summary {
  margin-bottom: 14px;
}

.walkforward-panel input,
.walkforward-panel button {
  width: auto;
}

.wf-grid { margin-top: 14px; display: grid; gap: 12px; }
.wf-legs { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.wf-leg { background: #0b1430; border: 1px solid var(--line); border-radius: 14px; padding: 15px; }
.wf-leg-title { font-weight: 700; margin-bottom: 10px; color: var(--accent); }
.wf-leg-rows { display: grid; grid-template-columns: 1fr auto; gap: 6px 12px; font-size: 0.95rem; }
.wf-leg-rows span { color: var(--muted); }
.wf-leg-verdict { margin-top: 10px; font-size: 0.78rem; font-weight: 700; letter-spacing: 0.06em; }
.wf-leg-verdict.good { color: var(--good); }
.wf-leg-verdict.bad { color: var(--bad); }

.source-box {
  margin-top: 18px;
  background: #091122;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 0;
  overflow: hidden;
}

.source-box summary {
  cursor: pointer;
  list-style: none;
  padding: 14px 16px;
  font-weight: 600;
}

.source-box summary::-webkit-details-marker {
  display: none;
}

.source-box pre {
  border-top: 1px solid var(--line);
  padding: 14px 16px 16px;
}

pre {
  white-space: pre-wrap;
  margin: 0;
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.5;
}

.table-wrap { overflow: auto; }

.empty-state {
  color: var(--muted);
  text-align: center;
  padding: 18px 12px;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  text-align: left;
  padding: 12px 8px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

th {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

td {
  font-size: 0.92rem;
}

input.compare-run {
  width: auto;
  margin: 0;
}

.sweep-panel tr.best { background: rgba(110, 168, 254, 0.12); }
.sweep-panel td.good { color: var(--good); font-weight: 700; }
.sweep-panel td.bad { color: var(--bad); }
.sweep-panel tr.err td { color: var(--bad); }

@media (max-width: 1240px) {
  .triple-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 1080px) {
  .hero,
  .grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 900px) {
  .form-grid,
  .metrics-grid,
  .dataset-summary-grid,
  .wf-legs {
    grid-template-columns: 1fr;
  }

  .section-head,
  .dataset-summary-head,
  .details-summary {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 720px) {
  .page {
    width: min(100%, calc(100% - 20px));
    margin: 10px auto 36px;
  }

  .card {
    padding: 16px;
    border-radius: 16px;
  }

  body {
    font-size: 15px;
  }

  .hero h1 {
    font-size: 1.72rem;
  }

  .chart-wrap {
    min-height: 320px;
  }

  .chart {
    height: 320px;
  }

  th, td {
    padding: 10px 6px;
  }
}