:root {
  --bg: #0b0d12;
  --bg-elev: #11141c;
  --bg-card: #141823;
  --bg-card-2: #1a1f2c;
  --border: #232a3a;
  --border-strong: #313a52;
  --text: #e6e9f2;
  --text-dim: #97a0b8;
  --muted: #6c7693;
  --accent: #66d4cf;
  --accent-2: #f3a653;
  --good: #6ee7a8;
  --warn: #fbbf24;
  --bad: #f87171;
  --link: #93c5fd;
  --shadow: 0 4px 14px rgba(0, 0, 0, 0.45);
  --radius: 12px;
  --mono: ui-monospace, "JetBrains Mono", SFMono-Regular, Menlo, Consolas, monospace;
  --sans: -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(--text);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }

code, pre, .mono { font-family: var(--mono); font-size: 13px; }

#app {
  max-width: 1280px;
  margin: 0 auto;
  padding: 24px 28px 64px;
}

/* Hero */
.hero {
  background: linear-gradient(180deg, #0e131d 0%, #0b0d12 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 32px;
  margin-bottom: 24px;
  box-shadow: var(--shadow);
}
.hero-inner {
  display: flex;
  gap: 40px;
  align-items: flex-start;
  flex-wrap: wrap;
}
.hero-left { flex: 1 1 480px; min-width: 0; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--accent); font-weight: 600; letter-spacing: 0.04em; font-size: 13px; text-transform: uppercase; margin-bottom: 12px; }
.brand-icon { font-size: 18px; }
h1 { margin: 0 0 12px; font-size: 28px; line-height: 1.2; font-weight: 600; letter-spacing: -0.01em; }
h1 abbr { border-bottom: 1px dotted var(--text-dim); cursor: help; text-decoration: none; }
.lede { color: var(--text-dim); margin: 0; max-width: 64ch; font-size: 14.5px; }
.lede code { background: #1d2536; padding: 1px 5px; border-radius: 4px; color: var(--accent); }

.hero-stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; min-width: 260px; }
.stat { background: var(--bg-card); border: 1px solid var(--border); border-radius: 10px; padding: 12px 14px; }
.stat-label { color: var(--muted); font-size: 11px; letter-spacing: 0.05em; text-transform: uppercase; margin-bottom: 4px; }
.stat-value { font-size: 22px; font-weight: 600; font-variant-numeric: tabular-nums; }
.stat-value.small { font-size: 14px; font-weight: 500; color: var(--text-dim); }

/* Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin-bottom: 20px;
  box-shadow: var(--shadow);
}
.card-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; flex-wrap: wrap; margin-bottom: 16px; }
.card-head h2 { margin: 0; font-size: 18px; font-weight: 600; letter-spacing: -0.005em; }
.card-head .muted { margin: 4px 0 0; }

.muted { color: var(--text-dim); font-size: 13.5px; }

/* Scenario picker */
.scenario-picker { display: inline-flex; gap: 4px; background: var(--bg-elev); border: 1px solid var(--border); border-radius: 9px; padding: 4px; }
.scenario-btn {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--text-dim);
  padding: 6px 12px;
  border-radius: 6px;
  cursor: pointer;
  font: inherit;
  font-size: 13px;
  transition: background 0.15s, color 0.15s;
}
.scenario-btn:hover { color: var(--text); }
.scenario-btn[aria-selected="true"] { background: var(--bg-card-2); color: var(--accent); }

/* Buttons */
button.primary {
  appearance: none;
  border: 0;
  background: var(--accent);
  color: #0b0d12;
  padding: 9px 16px;
  border-radius: 7px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}
button.primary:hover { filter: brightness(1.07); }
button.ghost {
  appearance: none;
  background: transparent;
  border: 1px solid var(--border-strong);
  color: var(--text-dim);
  padding: 6px 12px;
  border-radius: 7px;
  cursor: pointer;
  font: inherit;
  font-size: 13px;
}
button.ghost:hover { color: var(--text); border-color: var(--accent); }

/* Tables */
.table-scroll { overflow-x: auto; }
table.leaderboard { width: 100%; border-collapse: collapse; font-size: 13.5px; }
table.leaderboard th, table.leaderboard td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  white-space: nowrap;
}
table.leaderboard th { color: var(--muted); font-weight: 500; font-size: 12px; text-transform: uppercase; letter-spacing: 0.04em; }
table.leaderboard td.num, table.leaderboard th.num { text-align: right; font-variant-numeric: tabular-nums; font-family: var(--mono); font-size: 13px; }
table.leaderboard tr.row-link { cursor: pointer; transition: background 0.1s; }
table.leaderboard tr.row-link:hover { background: var(--bg-card-2); }
table.leaderboard tr.bad { color: var(--text-dim); }
table.leaderboard tbody td.loading { text-align: center; padding: 28px 12px; color: var(--text-dim); }
.pricing-tag { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 11px; background: var(--bg-card-2); color: var(--text-dim); border: 1px solid var(--border); }
.rank-cell { font-weight: 600; color: var(--accent); }
.tag-good { color: var(--good); }
.tag-warn { color: var(--warn); }
.tag-bad { color: var(--bad); }

/* Unparseable */
.unparseable-details { margin-top: 14px; font-size: 13px; }
.unparseable-details summary { cursor: pointer; color: var(--text-dim); }
.unparseable-details ul { margin: 10px 0 0; padding-left: 18px; color: var(--text-dim); }
.unparseable-details code { color: var(--bad); }

/* Grid-2 */
.grid-2 { display: grid; grid-template-columns: 1.4fr 1fr; gap: 20px; }
@media (max-width: 880px) { .grid-2 { grid-template-columns: 1fr; } }

/* Changes list */
.changes-list { list-style: none; margin: 0; padding: 0; max-height: 360px; overflow-y: auto; }
.changes-list li { padding: 10px 0; border-bottom: 1px solid var(--border); font-size: 13.5px; }
.changes-list li:last-child { border-bottom: 0; }
.changes-list .empty { color: var(--text-dim); padding: 12px 0; }
.delta-up { color: var(--bad); font-weight: 600; }
.delta-down { color: var(--good); font-weight: 600; }

/* Calculator form */
.calc-form { display: grid; gap: 10px; }
.calc-form label { display: grid; gap: 4px; font-size: 13px; color: var(--text-dim); }
.calc-form label.row { display: flex; align-items: center; gap: 8px; color: var(--text); }
.calc-form input[type="number"] {
  background: var(--bg-elev);
  border: 1px solid var(--border-strong);
  color: var(--text);
  padding: 8px 10px;
  border-radius: 6px;
  font: inherit;
  font-variant-numeric: tabular-nums;
}
.calc-form input[type="number"]:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.calc-form button { margin-top: 6px; justify-self: start; }
.calc-result { margin-top: 14px; }
table.leaderboard.compact th, table.leaderboard.compact td { padding: 7px 10px; }

/* Detail card */
.detail-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 24px; }
@media (max-width: 880px) { .detail-grid { grid-template-columns: 1fr; } }
.kv { display: grid; grid-template-columns: max-content 1fr; gap: 6px 14px; margin: 0; font-size: 13.5px; }
.kv dt { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: 0.04em; padding-top: 2px; }
.kv dd { margin: 0; word-break: break-word; }
.snippet { background: var(--bg-elev); border: 1px solid var(--border); padding: 12px 14px; border-radius: 8px; max-height: 240px; overflow: auto; white-space: pre-wrap; color: var(--text-dim); font-size: 12px; }
#detail-card h3 { font-size: 14px; margin: 16px 0 8px; color: var(--text-dim); font-weight: 500; }

/* Methodology */
.methodology { background: var(--bg-card); border: 1px dashed var(--border-strong); border-radius: var(--radius); padding: 20px 24px; margin-top: 24px; color: var(--text-dim); }
.methodology h2 { font-size: 15px; font-weight: 600; margin: 0 0 10px; color: var(--text); }
.methodology p { margin: 0 0 10px; font-size: 13.5px; }

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 12px;
  margin-top: 24px;
  padding: 16px 8px 0;
}

/* Loading */
[aria-busy="true"] { opacity: 0.65; }
.spinner { display: inline-block; width: 12px; height: 12px; border: 2px solid var(--border-strong); border-top-color: var(--accent); border-radius: 50%; animation: spin 0.9s linear infinite; vertical-align: middle; }
@keyframes spin { to { transform: rotate(360deg); } }

@media (max-width: 640px) {
  #app { padding: 16px 14px 48px; }
  .hero { padding: 20px 18px; }
  h1 { font-size: 22px; }
  .hero-stats { width: 100%; grid-template-columns: repeat(2, 1fr); }
}