:root {
  color-scheme: dark;
  --bg: #07111b;
  --panel: #111c2b;
  --panel-2: #1a2636;
  --text: #f5d98a;
  --muted: #94a3b8;
  --accent: #f59e0b;
  --gold: #f7c948;
  --paper: #cbd5e1;
  --border: rgba(245, 217, 138, 0.18);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Inter", "Segoe UI", sans-serif;
  background: radial-gradient(circle at top, #14253e 0%, var(--bg) 55%, #03070d 100%);
  color: var(--text);
  min-height: 100vh;
}

.dashboard {
  max-width: 1280px;
  margin: 0 auto;
  padding: 24px;
}

.card {
  background: rgba(17, 28, 43, 0.88);
  border: 1px solid var(--border);
  border-radius: 20px;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(12px);
}

.hero {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 24px 28px;
  margin-bottom: 18px;
}

.hero-extra {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 16px;
}

.hero-visual {
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(247, 201, 72, 0.15);
  padding: 16px;
  max-width: 360px;
}

.hero-visual svg {
  display: block;
  width: 100%;
  height: auto;
}

.hero-callout {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

.eyebrow {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--accent);
  font-size: 0.8rem;
}

h1, h2, p { margin: 0; }

h1 {
  font-size: clamp(1.7rem, 2.3vw, 2.6rem);
  margin-top: 6px;
}

.lead {
  margin-top: 10px;
  color: var(--muted);
  max-width: 760px;
  line-height: 1.6;
}

.badge {
  border: 1px solid rgba(247, 201, 72, 0.3);
  background: rgba(247, 201, 72, 0.12);
  color: var(--gold);
  padding: 10px 14px;
  border-radius: 999px;
  font-size: 0.95rem;
  white-space: nowrap;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 16px;
  padding: 18px 22px;
  margin-bottom: 18px;
}

.control,
.control-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

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

select,
button,
input {
  font: inherit;
}

input,
select {
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
  padding: 10px 12px;
  border-radius: 10px;
}

input {
  width: 110px;
}

.input-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.unit {
  color: var(--muted);
}

.hint {
  color: var(--muted);
  font-size: 0.8rem;
}

.segmented {
  display: flex;
  gap: 8px;
}

.toggle,
.primary {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 10px 14px;
  cursor: pointer;
  transition: 180ms ease;
  background: transparent;
  color: var(--text);
}

.toggle.active,
.primary {
  background: linear-gradient(135deg, var(--accent), #ffca4c);
  color: #171717;
  border-color: transparent;
}

.primary {
  margin-left: auto;
}

.stats {
  padding: 18px 22px;
  margin-bottom: 18px;
}

.stats-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.stat-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(245, 217, 138, 0.16);
  border-radius: 16px;
  padding: 16px;
}

.stat-card .label {
  color: var(--muted);
  font-size: 0.84rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.stat-card .value {
  margin-top: 8px;
  font-size: 1.2rem;
  font-weight: 700;
}

.stat-card .detail {
  margin-top: 6px;
  color: var(--muted);
  line-height: 1.45;
}

.visuals {
  padding: 18px;
}

.comparison-shell {
  display: grid;
  gap: 18px;
  grid-template-columns: 1.35fr 0.9fr;
}

.svg-card,
.contract-card,
.history-chart-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(245, 217, 138, 0.16);
  border-radius: 16px;
  padding: 16px;
}

.history-chart-card {
  margin-top: 18px;
}

.price-chart {
  padding: 18px 22px;
  margin-bottom: 18px;
}

.price-chart-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-bottom: 18px;
}

.chart-control {
  display: grid;
  gap: 8px;
  min-width: 180px;
}

.chart-control span {
  color: var(--muted);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.price-chart-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(245, 217, 138, 0.12);
  border-radius: 16px;
  padding: 14px;
}

.calculator {
  padding: 18px 22px;
  margin-bottom: 18px;
}

.calc-grid {
  display: grid;
  grid-template-columns: minmax(240px, 320px) 1fr;
  gap: 18px;
  align-items: start;
}

.calc-inputs {
  display: grid;
  gap: 14px;
}

.calc-inputs label {
  display: flex;
  flex-direction: column;
  gap: 8px;
  color: var(--muted);
  font-size: 0.95rem;
}

.calc-output {
  min-height: 180px;
  padding: 18px;
  border-radius: 16px;
  border: 1px solid rgba(245, 217, 138, 0.12);
  background: rgba(255, 255, 255, 0.03);
}

.calc-output p {
  margin: 0 0 12px;
  line-height: 1.7;
}

.calc-output strong {
  color: var(--gold);
}

.svg-card h2,
.contract-card h2,
.history-chart-card h2 {
  margin-bottom: 12px;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--accent);
}

#visualizer,
#historyChart svg {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 12px;
}

.contract-visual {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.contract-note {
  margin-top: 8px;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid rgba(245, 217, 138, 0.16);
  background: rgba(255, 255, 255, 0.03);
  color: var(--muted);
  line-height: 1.6;
}

.contract-note p {
  margin: 0 0 8px;
}

.contract-note p:last-child {
  margin-bottom: 0;
}

.contract-link {
  color: var(--gold);
  text-decoration: none;
  font-weight: 600;
}

.contract-link:hover,
.contract-link:focus-visible {
  text-decoration: underline;
}

.contract-meter {
  padding: 10px;
  border-radius: 14px;
  border: 1px solid rgba(245, 217, 138, 0.18);
  background: rgba(255, 255, 255, 0.03);
}

.contract-pill {
  display: inline-block;
  margin-bottom: 10px;
  background: rgba(247, 201, 72, 0.16);
  padding: 6px 10px;
  border-radius: 999px;
  color: var(--gold);
  font-size: 0.9rem;
}

.contract-row {
  display: grid;
  gap: 12px;
  grid-template-columns: 110px 1fr;
  align-items: start;
}

.contract-gold {
  background: rgba(247, 201, 72, 0.12);
  border-radius: 12px;
  padding: 10px;
  text-align: center;
  color: var(--gold);
}

.contract-gold-bar {
  display: block;
  width: 52px;
  height: 72px;
  margin: 0 auto 8px;
  border-radius: 8px;
  background: linear-gradient(180deg, var(--gold), #8b5a00);
  box-shadow: inset 0 3px 8px rgba(255, 255, 255, 0.2);
}

.contract-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  max-height: 180px;
  overflow-y: auto;
  padding-right: 4px;
}

.contract-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: rgba(203, 213, 225, 0.16);
  font-size: 1rem;
}

.error {
  color: #fda4af;
}

@media (max-width: 900px) {
  .comparison-shell {
    grid-template-columns: 1fr;
  }

  .primary {
    margin-left: 0;
  }
}

@media (max-width: 680px) {
  .dashboard {
    padding: 14px;
  }

  .hero {
    flex-direction: column;
    align-items: flex-start;
  }

  .controls {
    flex-direction: column;
    align-items: flex-start;
  }

  .contract-row {
    grid-template-columns: 1fr;
  }
}