:root {
  --bg: #0c0e12;
  --bg-elev: #14171c;
  --bg-elev-2: #1b1f26;
  --border: #232831;
  --text: #e6e9ef;
  --text-dim: #9099a6;
  --text-muted: #5f6773;
  --accent: #5eead4;
  --accent-2: #38bdf8;
  --warn: #facc15;
  --bad: #f87171;
  --good: #34d399;
  --grade-a: #34d399;
  --grade-b: #5eead4;
  --grade-c: #facc15;
  --grade-d: #fb923c;
  --grade-f: #f87171;
  --shadow: 0 1px 0 rgba(255,255,255,0.04), 0 8px 24px rgba(0,0,0,0.3);
  --radius: 12px;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, system-ui, sans-serif;
}

* { box-sizing: border-box; }
html, body { background: var(--bg); color: var(--text); font-family: var(--sans); margin: 0; padding: 0; }
body { line-height: 1.5; -webkit-font-smoothing: antialiased; }
a { color: var(--accent-2); text-decoration: none; }
a:hover { text-decoration: underline; }
code { font-family: var(--mono); background: var(--bg-elev-2); padding: 1px 6px; border-radius: 4px; font-size: 0.92em; }
.wrap { max-width: 1100px; margin: 0 auto; padding: 0 20px; }
.muted { color: var(--text-muted); }
.small { font-size: 0.86em; }
.num { text-align: right; font-variant-numeric: tabular-nums; }

.topbar {
  position: sticky; top: 0; z-index: 10;
  background: rgba(12,14,18,0.85);
  backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid var(--border);
}
.topbar .wrap {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 12px; padding-bottom: 12px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.logo {
  width: 28px; height: 28px; border-radius: 8px;
  background: conic-gradient(from 200deg, var(--accent), var(--accent-2), var(--warn), var(--accent));
  box-shadow: 0 0 24px rgba(94,234,212,0.18);
}
.title { font-weight: 700; font-size: 1.05rem; letter-spacing: -0.01em; }
.tag { color: var(--text-dim); font-size: 0.84rem; }
.nav { display: flex; gap: 20px; }
.nav a { color: var(--text-dim); font-size: 0.92rem; }
.nav a:hover { color: var(--text); text-decoration: none; }

.hero {
  padding: 56px 0 28px;
  text-align: left;
}
.hero h1 {
  font-size: clamp(1.8rem, 3.2vw, 2.4rem);
  letter-spacing: -0.02em;
  margin: 0 0 14px;
}
.lead {
  color: var(--text-dim);
  max-width: 720px;
  font-size: 1.02rem;
  margin: 0 0 22px;
}
.check-form {
  display: flex; gap: 8px; max-width: 560px;
}
.check-form input[type=text] {
  flex: 1; min-width: 0;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 12px 14px;
  border-radius: 10px;
  font-size: 1rem;
  font-family: var(--mono);
}
.check-form input[type=text]:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(94,234,212,0.18);
}
.check-form button {
  background: var(--accent);
  color: #06302a;
  border: 0;
  padding: 0 18px;
  border-radius: 10px;
  font-weight: 700;
  font-size: 0.98rem;
  cursor: pointer;
}
.check-form button:disabled { opacity: 0.6; cursor: progress; }
.check-error {
  color: var(--bad); margin-top: 10px; font-size: 0.92rem;
}

.check-result {
  margin-top: 22px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow);
}
.cr-head { display: flex; gap: 24px; align-items: center; flex-wrap: wrap; }
.cr-score-num { font-size: 3.4rem; font-weight: 800; letter-spacing: -0.04em; line-height: 1; }
.cr-grade {
  font-weight: 800; font-size: 1.6rem; padding: 8px 16px; border-radius: 12px;
  background: var(--bg-elev-2);
}
.grade-A { color: var(--grade-a); }
.grade-B { color: var(--grade-b); }
.grade-C { color: var(--grade-c); }
.grade-D { color: var(--grade-d); }
.grade-F { color: var(--grade-f); }
.cr-domain { font-family: var(--mono); font-size: 1.1rem; color: var(--text); }
.cr-meta { color: var(--text-dim); font-size: 0.9rem; }
.cr-signals { margin-top: 18px; display: grid; grid-template-columns: 1fr; gap: 8px; }
.sig {
  display: grid;
  grid-template-columns: 22px 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg-elev-2);
}
.sig .ico {
  width: 18px; height: 18px; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 0.7rem; font-weight: 800;
}
.sig.ok .ico   { background: rgba(52,211,153,0.18); color: var(--good); }
.sig.fail .ico { background: rgba(248,113,113,0.18); color: var(--bad); }
.sig .label { display: flex; flex-direction: column; }
.sig .label code { background: transparent; padding: 0; color: var(--accent-2); font-size: 0.92rem; }
.sig .notes { color: var(--text-muted); font-size: 0.84rem; }
.sig .points { font-family: var(--mono); font-size: 0.95rem; color: var(--text-dim); }
.sig .points .got { color: var(--text); font-weight: 700; }

.panel {
  margin-top: 36px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow);
}
.panel-head {
  display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 18px;
  flex-wrap: wrap;
}
.panel h2 { margin: 0; font-size: 1.15rem; letter-spacing: -0.01em; }
.panel h3 { margin: 0 0 10px; font-size: 0.98rem; color: var(--text-dim); font-weight: 600; }
.panel p { color: var(--text-dim); }

.controls { display: flex; gap: 8px; }
.controls input, .controls select {
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 10px;
  border-radius: 8px;
  font-size: 0.92rem;
}

.table-wrap { overflow-x: auto; }
table.leaderboard, table.methods {
  width: 100%; border-collapse: collapse; font-size: 0.94rem;
}
table.leaderboard th, table.leaderboard td,
table.methods th, table.methods td {
  text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
table.leaderboard th, table.methods th { color: var(--text-dim); font-weight: 600; font-size: 0.84rem; text-transform: uppercase; letter-spacing: 0.04em; }
table.leaderboard tr:hover { background: rgba(255,255,255,0.02); }
table.leaderboard td.num { font-family: var(--mono); }
.lb-domain { font-family: var(--mono); color: var(--text); }
.lb-cat { color: var(--text-dim); font-size: 0.86rem; }

.stats-grid {
  display: grid; gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}
.stat {
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 16px;
}
.stat .k { color: var(--text-dim); font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.05em; }
.stat .v { font-size: 1.7rem; font-weight: 700; letter-spacing: -0.02em; margin-top: 4px; }
.stat .sub { color: var(--text-muted); font-size: 0.82rem; }

.coverage {
  margin-top: 18px;
  display: grid; gap: 8px;
}
.cov-row { display: grid; grid-template-columns: 220px 1fr 64px; gap: 12px; align-items: center; }
.cov-bar { background: var(--bg-elev-2); border: 1px solid var(--border); border-radius: 6px; height: 10px; overflow: hidden; }
.cov-fill { height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent-2)); }
.cov-pct { font-family: var(--mono); color: var(--text); font-size: 0.9rem; }

.movers-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.mover-list { list-style: none; margin: 0; padding: 0; }
.mover-list li {
  display: grid; grid-template-columns: 1fr auto; gap: 12px;
  padding: 8px 0; border-bottom: 1px solid var(--border);
  font-family: var(--mono); font-size: 0.92rem;
}
.mover-list li.muted { font-family: var(--sans); }
.delta-up { color: var(--good); }
.delta-down { color: var(--bad); }

.footer {
  margin: 60px 0 36px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.88rem;
}
.footer .wrap { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }

@media (max-width: 700px) {
  .nav { display: none; }
  .movers-grid { grid-template-columns: 1fr; }
  .cov-row { grid-template-columns: 140px 1fr 50px; }
}