:root {
  --bg: oklch(20% 0.02 260);
  --surface: oklch(26% 0.02 260);
  --text: oklch(96% 0.01 260);
  --muted: oklch(72% 0.02 260);
  --accent: oklch(70% 0.17 250);
  --bad: oklch(63% 0.20 25);
  --mid: oklch(76% 0.16 80);
  --good: oklch(72% 0.17 150);
  --radius: 18px;
  --space: clamp(1rem, 0.6rem + 1.6vw, 2rem);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: var(--space);
  font: 16px/1.55 system-ui, -apple-system, "Segoe UI", sans-serif;
  background: radial-gradient(120% 120% at 50% 0%, oklch(28% 0.04 260), var(--bg));
  color: var(--text);
}
body.embed { background: transparent; }

.card {
  width: min(560px, 100%);
  background: var(--surface);
  border: 1px solid oklch(40% 0.02 260 / 0.4);
  border-radius: var(--radius);
  padding: clamp(1.5rem, 1rem + 3vw, 3rem);
  box-shadow: 0 30px 80px -40px oklch(0% 0 0 / 0.7);
}

h1 { font-size: clamp(1.6rem, 1.1rem + 2.4vw, 2.6rem); line-height: 1.1; margin: 0 0 0.5rem; letter-spacing: -0.02em; }
.lead { color: var(--muted); font-size: 1.1rem; margin: 0 0 1.5rem; }
.eyebrow { color: var(--muted); margin: 0 0 0.5rem; }

.scan-form { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.scan-form input { flex: 1 1 220px; padding: 0.9rem 1rem; border-radius: 12px; border: 1px solid oklch(50% 0.02 260 / 0.5); background: oklch(18% 0.02 260); color: var(--text); font-size: 1rem; }
.scan-form button, .gate button { padding: 0.9rem 1.4rem; border: 0; border-radius: 12px; background: var(--accent); color: oklch(15% 0.02 260); font-weight: 650; font-size: 1rem; cursor: pointer; transition: transform .15s, filter .15s; }
.scan-form button:hover, .gate button:hover { transform: translateY(-1px); filter: brightness(1.06); }
.hint { color: var(--muted); font-size: 0.9rem; margin-top: 0.75rem; }

.gauge-wrap { display: grid; place-items: center; margin: 0.5rem 0 1rem; }
.gauge { width: clamp(160px, 40vw, 220px); height: auto; }
.gauge__track { stroke: oklch(34% 0.02 260); }
.gauge--bad .gauge__value { stroke: var(--bad); }
.gauge--mid .gauge__value { stroke: var(--mid); }
.gauge--good .gauge__value { stroke: var(--good); }
.gauge--bad .gauge__num { fill: var(--bad); }
.gauge--mid .gauge__num { fill: var(--mid); }
.gauge--good .gauge__num { fill: var(--good); }
.gauge__num { font: 700 34px system-ui, sans-serif; }

.subscores { list-style: none; display: flex; flex-wrap: wrap; gap: 0.5rem 1.25rem; justify-content: center; padding: 0; margin: 0 0 1.5rem; color: var(--muted); font-size: 0.95rem; }
.subscores b { color: var(--text); }

h2 { font-size: 1.2rem; margin: 1.5rem 0 0.75rem; }
.findings { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.5rem; }
.finding { display: flex; align-items: center; gap: 0.75rem; padding: 0.75rem 0.9rem; border-radius: 12px; background: oklch(22% 0.02 260); border-left: 4px solid var(--muted); }
.finding--critical { border-left-color: var(--bad); }
.finding--high { border-left-color: var(--mid); }
.chip { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.04em; padding: 0.15rem 0.5rem; border-radius: 999px; background: oklch(30% 0.02 260); color: var(--muted); white-space: nowrap; }
.finding--critical .chip { background: oklch(40% 0.14 25); color: var(--text); }

.gate { margin-top: 1.75rem; padding-top: 1.5rem; border-top: 1px solid oklch(40% 0.02 260 / 0.5); }
.gate form { display: grid; gap: 0.75rem; margin-top: 0.75rem; }
.gate input[type=email] { padding: 0.9rem 1rem; border-radius: 12px; border: 1px solid oklch(50% 0.02 260 / 0.5); background: oklch(18% 0.02 260); color: var(--text); font-size: 1rem; }
.consent { display: flex; gap: 0.5rem; align-items: flex-start; color: var(--muted); font-size: 0.85rem; }
.consent a { color: var(--accent); }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }
.back { color: var(--accent); }

.explain { margin: 0.25rem 0 1.5rem; border: 1px solid oklch(40% 0.02 260 / 0.4); border-radius: 12px; background: oklch(22% 0.02 260); overflow: hidden; }
.explain summary { cursor: pointer; padding: 0.7rem 1rem; font-weight: 600; color: var(--text); list-style: none; font-size: 0.95rem; }
.explain summary::-webkit-details-marker { display: none; }
.explain summary::after { content: '+'; float: right; color: var(--muted); }
.explain[open] summary::after { content: '\2013'; }
.explain__item { padding: 0 1rem 0.7rem; }
.explain__item > b { color: var(--text); }
.explain__weight { color: var(--accent); font-size: 0.78rem; }
.explain__item p { margin: 0.15rem 0 0; color: var(--muted); font-size: 0.88rem; line-height: 1.45; }

@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }