:root {
  --bg: #f6f7fb;
  --card: #ffffff;
  --border: #e4e7ec;
  --text: #101828;
  --muted: #475467;
  --subtle: #667085;
  --accent: #2563eb;
  --good: #16a34a;
  --bad: #dc2626;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  --sans: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.06), 0 12px 24px rgba(16, 24, 40, 0.08);
}

html, body {
  height: 100%;
}

body {
  margin: 0;
  font-family: var(--sans);
  color: var(--text);
  background: var(--bg);
}

* { box-sizing: border-box; }

.shell {
  max-width: 1160px;
  margin: 0 auto;
  padding: 26px 14px 46px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.brand-title {
  font-size: 1.3rem;
  font-weight: 650;
  letter-spacing: -0.01em;
  margin: 0;
}

.brand-subtitle {
  color: var(--subtle);
  font-size: 0.9rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.nav {
  display: flex;
  gap: 12px;
  margin-top: 10px;
  flex-wrap: wrap;
}

.nav-link {
  color: var(--accent);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 600;
}

.nav-link:hover {
  text-decoration: underline;
}

.status-block {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
}

.status-meta {
  color: var(--subtle);
  font-size: 0.92rem;
}

.pill {
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 7px 11px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: #ffffff;
}

.pill-fresh {
  border-color: rgba(22, 163, 74, 0.35);
  color: var(--good);
}

.pill-stale {
  border-color: rgba(220, 38, 38, 0.35);
  color: var(--bad);
}

.alert {
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #ffffff;
  box-shadow: var(--shadow);
}

.alert-stale {
  border-left: 4px solid var(--bad);
}

.alert-title {
  font-weight: 650;
  margin-bottom: 6px;
}

.alert-body {
  color: var(--muted);
  font-size: 0.95rem;
}

.grid {
  display: grid;
  gap: 14px;
}

.grid-2 {
  grid-template-columns: 1fr 1fr;
}

.kpi-grid {
  grid-template-columns: repeat(4, 1fr);
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px 16px;
  box-shadow: var(--shadow);
}

.kpi-label {
  color: var(--subtle);
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.kpi-value {
  font-size: 1.02rem;
  margin-top: 10px;
  font-family: var(--mono);
}

.kpi-sub {
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.92rem;
}

.controls-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 10px;
}

.controls-form {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.control-label {
  color: var(--muted);
  font-size: 0.92rem;
}

.control-select {
  background: #ffffff;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 0.95rem;
  outline: none;
}

.control-input {
  background: #ffffff;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 0.95rem;
  outline: none;
  min-width: 140px;
}

.control-select:focus {
  border-color: rgba(37, 99, 235, 0.55);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}

.control-input:focus {
  border-color: rgba(37, 99, 235, 0.55);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}

.control-button {
  background: var(--accent);
  color: #ffffff;
  border: 1px solid rgba(37, 99, 235, 0.25);
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
}

.control-button:hover {
  filter: brightness(0.96);
}

.control-button:active {
  filter: brightness(0.92);
}

.section-title {
  font-weight: 650;
  letter-spacing: -0.01em;
}

.section-sub {
  margin-top: 6px;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.35;
}

.table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 12px;
}

.table th, .table td {
  padding: 10px 8px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

.table th {
  color: var(--muted);
  font-weight: 650;
  text-align: left;
  font-size: 0.9rem;
}

.table td {
  font-size: 0.95rem;
}

.table tbody tr:hover {
  background: rgba(37, 99, 235, 0.04);
}

.table.compact th, .table.compact td {
  padding: 8px 8px;
}

.mono {
  font-family: var(--mono);
}

.right {
  text-align: right;
}

.plot {
  margin-top: 12px;
}

.nearby-summary {
  margin-top: 12px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.nearby-metric {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px 10px;
  background: rgba(16, 24, 40, 0.02);
}

.nearby-label {
  color: var(--subtle);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.nearby-value {
  margin-top: 6px;
  font-size: 0.95rem;
  font-weight: 650;
}

.percentile-bar {
  margin-top: 12px;
  position: relative;
  height: 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: linear-gradient(90deg, rgba(22, 163, 74, 0.55), rgba(245, 158, 11, 0.55), rgba(220, 38, 38, 0.55));
  overflow: hidden;
}

.percentile-marker {
  position: absolute;
  top: -3px;
  width: 2px;
  height: 18px;
  background: rgba(16, 24, 40, 0.95);
}

.winner {
  margin-top: 14px;
  padding: 12px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  background: rgba(37, 99, 235, 0.04);
}

.winner-title {
  color: var(--subtle);
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.winner-value {
  margin-top: 8px;
  font-weight: 700;
  font-size: 1.04rem;
}

.winner-sub {
  margin-top: 6px;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.3;
}

.empty {
  margin-top: 12px;
  color: var(--muted);
  font-size: 0.95rem;
}

.footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  padding-top: 8px;
  color: var(--muted);
  font-size: 0.9rem;
}

.footer-left {
  display: flex;
  gap: 10px;
  align-items: center;
}

.footer-link {
  color: var(--accent);
  text-decoration: none;
}

.footer-link:hover {
  text-decoration: underline;
}

.footer-dot {
  color: rgba(71, 84, 103, 0.4);
}

@media (max-width: 980px) {
  .kpi-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-2 {
    grid-template-columns: 1fr;
  }
  .nearby-summary {
    grid-template-columns: repeat(2, 1fr);
  }
  .status-block {
    align-items: flex-start;
  }
  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }
  .controls-row {
    flex-direction: column;
    align-items: flex-start;
  }
}