:root {
  --color-purple: #836ef9;
  --color-deep: #200052;
  --color-bg: #0e100f;
  --color-surface: #16181a;
  --color-surface-2: #1e2124;
  --color-text: #fbfaf9;
  --color-muted: #a8a6a3;
  --color-pos: #3d9a6a;
  --color-neg: #c45c5c;
  --color-border: rgba(131, 110, 249, 0.22);
  --radius: 10px;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
  --font: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --max-w: 1120px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  color-scheme: dark;
}

body {
  margin: 0;
  font-family: var(--font);
  background: radial-gradient(ellipse 120% 80% at 50% -20%, var(--color-deep), var(--color-bg) 55%);
  color: var(--color-text);
  line-height: 1.5;
  min-height: 100vh;
}

.tabular {
  font-variant-numeric: tabular-nums;
}

a {
  color: var(--color-purple);
}

.wrap {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 1.25rem;
}

.site-header {
  border-bottom: 1px solid var(--color-border);
  background: rgba(14, 16, 15, 0.9);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
}

.logo {
  font-weight: 650;
  color: var(--color-text);
  text-decoration: none;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  font-size: 0.88rem;
}

.site-nav a {
  text-decoration: none;
  color: var(--color-muted);
}

.site-nav a.active,
.site-nav a:hover {
  color: var(--color-text);
}

.site-nav .nav-soon {
  color: var(--color-muted);
  font-size: 0.88rem;
  cursor: default;
}

.site-nav .nav-soon em {
  font-style: normal;
  font-size: 0.78rem;
  opacity: 0.85;
}

.site-footer {
  margin-top: 2.5rem;
  border-top: 1px solid var(--color-border);
  padding: 1.5rem 0 2rem;
}

.disclaimer {
  font-size: 0.85rem;
  color: var(--color-muted);
  margin: 0 0 0.5rem;
}

.footer-meta {
  font-size: 0.8rem;
  color: var(--color-muted);
  margin: 0;
}

.hero h1 {
  font-size: clamp(1.35rem, 4vw, 1.85rem);
  margin: 0 0 0.35rem;
}

.hero p,
.prose p {
  color: var(--color-muted);
}

.prose {
  max-width: 70ch;
}

.calculator-grid {
  display: grid;
  gap: 1.25rem;
}

@media (min-width: 900px) {
  .calculator-grid {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: var(--shadow);
}

.card h2 {
  margin: 0 0 1rem;
  font-size: 1.05rem;
}

.field {
  margin-bottom: 0.85rem;
}

.field label {
  display: block;
  font-size: 0.82rem;
  color: var(--color-muted);
  margin-bottom: 0.25rem;
}

.field input[type="number"],
.field input[type="text"],
.field select {
  width: 100%;
  padding: 0.5rem 0.6rem;
  border-radius: 6px;
  border: 1px solid var(--color-border);
  background: var(--color-surface-2);
  color: var(--color-text);
  font-size: 1rem;
}

.field input:disabled {
  opacity: 0.55;
}

.row-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.seg {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.seg label {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  cursor: pointer;
  font-size: 0.9rem;
}

.hint {
  font-size: 0.78rem;
  color: var(--color-muted);
  margin-top: 0.2rem;
}

.results dt {
  font-size: 0.78rem;
  color: var(--color-muted);
}

.results dd {
  margin: 0 0 0.65rem;
  font-size: 1.05rem;
}

.results dd.pos {
  color: var(--color-pos);
}

.results dd.neg {
  color: var(--color-neg);
}

.warn {
  background: rgba(196, 92, 92, 0.15);
  border: 1px solid rgba(196, 92, 92, 0.35);
  border-radius: 6px;
  padding: 0.6rem 0.75rem;
  font-size: 0.85rem;
  margin-top: 0.75rem;
}

.btn {
  display: inline-block;
  padding: 0.55rem 1rem;
  border-radius: 8px;
  border: none;
  background: var(--color-purple);
  color: #fff;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  font-size: 0.95rem;
}

.btn-secondary {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  color: var(--color-text);
}

table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

table.data th,
table.data td {
  border: 1px solid var(--color-border);
  padding: 0.45rem 0.5rem;
  text-align: left;
  vertical-align: top;
}

table.data th {
  background: var(--color-surface-2);
}

.badge {
  display: inline-block;
  font-size: 0.72rem;
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
}

.badge-featured {
  background: rgba(131, 110, 249, 0.2);
  border-color: var(--color-purple);
}

.badge-limited {
  color: #e8b86d;
}

.scenario-wrap {
  overflow-x: auto;
  margin-top: 0.75rem;
}

.faq details {
  margin-bottom: 0.65rem;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 0.5rem 0.75rem;
  background: var(--color-surface);
}

.faq summary {
  cursor: pointer;
  font-weight: 600;
}

.cta-block {
  margin: 1.5rem 0;
  padding: 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
}

.liq-distance-hero {
  margin-bottom: 1.25rem;
  padding: 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  background: var(--color-surface-2);
}

.liq-distance-label {
  margin: 0 0 0.25rem;
  font-size: 0.85rem;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.liq-distance-value {
  margin: 0;
  font-size: clamp(2rem, 6vw, 2.75rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--color-purple);
}

.liq-distance-plain {
  margin: 0.5rem 0 0;
  font-size: 0.95rem;
  color: var(--color-muted);
}

.rank-box {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1rem;
  margin: 1rem 0;
  font-size: 0.9rem;
}