:root {
  --bg: #0b0e14;
  --bg-elev: #11151c;
  --bg-elev-2: #161b24;
  --fg: #e6edf3;
  --fg-dim: #9aa4af;
  --fg-muted: #6b7682;
  --accent: #6db4ff;
  --accent-hot: #ffb86b;
  --pareto: #58e88a;
  --border: #1f2632;
  --danger: #f87171;
  --font-stack: "Inter", "SF Pro Text", -apple-system, BlinkMacSystemFont,
    "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-stack);
  font-size: 14px;
  line-height: 1.45;
  min-height: 100%;
}

a {
  color: var(--accent);
}
a:hover {
  color: #9ed1ff;
}

.topbar {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  padding: 28px 32px 18px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, #0d1117 0%, var(--bg) 100%);
  gap: 24px;
  flex-wrap: wrap;
}

.title h1 {
  margin: 0;
  font-size: 26px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.title .tagline {
  margin: 6px 0 0;
  color: var(--fg-dim);
  font-size: 13px;
  max-width: 70ch;
}

.title .tagline em {
  color: var(--accent-hot);
  font-style: normal;
}

.topbar-meta {
  display: flex;
  gap: 12px;
  align-items: center;
}

.badge {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  padding: 4px 10px;
  border-radius: 99px;
  color: var(--fg-dim);
  font-size: 12px;
}

.ghost-button {
  background: transparent;
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 12px;
  cursor: pointer;
  font-size: 12px;
}
.ghost-button:hover {
  background: var(--bg-elev);
}
.ghost-button:disabled {
  opacity: 0.55;
  cursor: progress;
}

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  padding: 8px 24px;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 4;
}

.tab {
  border: 1px solid transparent;
  background: transparent;
  color: var(--fg-dim);
  padding: 6px 12px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.tab .count {
  background: var(--bg-elev-2);
  border-radius: 99px;
  font-size: 11px;
  padding: 1px 8px;
  color: var(--fg-muted);
}
.tab.active {
  border-color: var(--border);
  background: var(--bg-elev);
  color: var(--fg);
}
.tab.active .count {
  color: var(--accent);
}

main {
  padding: 18px 24px 48px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.chart-row {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(280px, 1fr);
  gap: 24px;
}
@media (max-width: 980px) {
  .chart-row {
    grid-template-columns: 1fr;
  }
}

.chart-wrap {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  min-height: 380px;
  position: relative;
}
.chart-empty {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: var(--fg-dim);
  text-align: center;
  padding: 24px;
}

.cheapest-card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.cheapest-card h2 {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
  color: var(--fg-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.min-score-row {
  display: flex;
  align-items: center;
  gap: 12px;
}
.min-score-row input[type="range"] {
  flex: 1;
}
.min-score-row span {
  font-variant-numeric: tabular-nums;
  color: var(--fg);
  min-width: 3em;
}
.checkbox-row {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--fg-dim);
}
.cheapest-result {
  background: var(--bg-elev-2);
  border-radius: 8px;
  padding: 14px;
  border: 1px solid var(--border);
  min-height: 86px;
}
.cheapest-result.empty {
  color: var(--fg-muted);
  display: grid;
  place-items: center;
  text-align: center;
}
.cheapest-result .model {
  font-size: 16px;
  font-weight: 600;
  color: var(--fg);
  margin: 0 0 4px;
}
.cheapest-result .vendor {
  color: var(--fg-dim);
  font-size: 12px;
}
.cheapest-result .nums {
  display: flex;
  gap: 18px;
  margin-top: 10px;
  flex-wrap: wrap;
}
.cheapest-result .nums div {
  display: flex;
  flex-direction: column;
}
.cheapest-result .nums label {
  font-size: 11px;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.cheapest-result .nums strong {
  font-size: 15px;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.hint {
  font-size: 11px;
  color: var(--fg-muted);
  margin: 0;
}

.table-section {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px;
}
.table-toolbar {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}
.table-toolbar label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--fg-dim);
  font-size: 12px;
}
.table-toolbar select {
  background: var(--bg-elev-2);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 6px;
}
.row-count {
  margin-left: auto;
  color: var(--fg-muted);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
}

.table-wrap {
  overflow-x: auto;
  max-height: 60vh;
}
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
thead th {
  position: sticky;
  top: 0;
  background: var(--bg-elev);
  text-align: left;
  font-weight: 600;
  color: var(--fg-dim);
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
thead th.num {
  text-align: right;
}
tbody td {
  padding: 7px 10px;
  border-bottom: 1px solid var(--border);
}
tbody td.num {
  text-align: right;
  font-variant-numeric: tabular-nums;
}
tbody tr.pareto {
  background: rgba(88, 232, 138, 0.06);
}
tbody tr.pareto td:first-child::before {
  content: "★ ";
  color: var(--pareto);
}
tbody tr:hover {
  background: rgba(109, 180, 255, 0.06);
}

.open-pill {
  background: rgba(88, 232, 138, 0.12);
  border: 1px solid rgba(88, 232, 138, 0.3);
  color: var(--pareto);
  font-size: 10px;
  padding: 0 6px;
  border-radius: 99px;
  margin-left: 6px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

footer {
  padding: 18px 32px 36px;
  color: var(--fg-muted);
  font-size: 12px;
  border-top: 1px solid var(--border);
}