:root {
  --ink: #0f2136;
  --ink-soft: #4a5b71;
  --line: #d9e2ec;
  --bg: #f4f7fa;
  --card: #ffffff;
  --teal: #0f6e5f;
  --teal-soft: #e3f2ee;
  --amber: #b3611a;
  --amber-soft: #fbebd9;
  --cliff: #a3261f;
  --cliff-soft: #fbe6e4;
  --radius: 12px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 20px 28px;
  background: linear-gradient(120deg, #0f2136, #123a33);
  color: #f2f6f4;
}

.brand { display: flex; align-items: center; gap: 14px; }

.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: conic-gradient(from 220deg, #f4a340, #0f6e5f 55%, #a3261f 78%, #f4a340);
  flex-shrink: 0;
}

.site-header h1 { margin: 0; font-size: 1.35rem; letter-spacing: -0.01em; }
.tagline { margin: 2px 0 0; font-size: 0.85rem; color: #c9d6d1; }

.oe-countdown {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  padding: 8px 16px;
  font-size: 0.85rem;
  font-weight: 600;
}

main {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 20px;
  padding: 24px 28px 40px;
  max-width: 1180px;
  margin: 0 auto;
}

.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
}

.panel.wide { grid-column: 1 / -1; }

.panel h2 {
  margin: 0 0 14px;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
}

.input-panel label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin: 14px 0 6px;
}

.input-panel label:first-of-type { margin-top: 0; }

.input-panel input[type="number"],
.input-panel select {
  width: 100%;
  padding: 9px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 0.95rem;
  background: #fff;
  color: var(--ink);
}

.input-panel input[type="range"] { width: 100%; }

#age-value {
  display: inline-block;
  margin-top: 4px;
  font-weight: 700;
  color: var(--teal);
}

.usage-toggle {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  margin-top: 16px;
}

.usage-toggle legend {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--ink-soft);
  padding: 0 4px;
}

.usage-toggle label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 500;
  font-size: 0.88rem;
  margin: 6px 0;
}

.broker-cta {
  width: 100%;
  margin-top: 18px;
  padding: 12px;
  border: none;
  border-radius: 8px;
  background: var(--ink-soft);
  color: #fff;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: not-allowed;
  opacity: 0.65;
}

.subsidy-summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 14px;
}

.stat {
  background: var(--teal-soft);
  border-radius: 10px;
  padding: 12px 14px;
}

.stat .label {
  font-size: 0.75rem;
  color: var(--ink-soft);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.stat .value {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--teal);
  margin-top: 4px;
}

.cliff-banner {
  grid-column: 1 / -1;
  background: var(--cliff-soft);
  border: 1px solid #f1c6c1;
  color: var(--cliff);
  border-radius: 10px;
  padding: 12px 14px;
  font-weight: 600;
  font-size: 0.9rem;
}

.table-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 14px;
}

.table-header h2 { margin: 0; text-transform: none; font-size: 1.1rem; color: var(--ink); }

.sort-controls { display: flex; align-items: center; gap: 8px; font-size: 0.85rem; color: var(--ink-soft); }

.sort-btn {
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 0.82rem;
  cursor: pointer;
}

.sort-btn.active { background: var(--teal); color: #fff; border-color: var(--teal); }

.table-wrap { overflow-x: auto; }

table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }

th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); white-space: nowrap; }

th { font-size: 0.75rem; text-transform: uppercase; color: var(--ink-soft); letter-spacing: 0.02em; }

tr.best-value td { background: var(--teal-soft); }

.tier-tag {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
}

.tier-Bronze { background: var(--amber-soft); color: var(--amber); }
.tier-Silver { background: #eef1f5; color: #47566a; }
.tier-Gold { background: #fdf3d6; color: #916b06; }

.disclaimer {
  grid-column: 1 / -1;
  font-size: 0.78rem;
  color: var(--ink-soft);
  border-top: 1px solid var(--line);
  padding-top: 14px;
  margin-top: 4px;
}

@media (max-width: 800px) {
  main { grid-template-columns: 1fr; padding: 18px; }
  .site-header { padding: 16px 18px; }
}