:root {
  --bg: #0b1220;
  --panel: #121a2b;
  --ink: #e8eef8;
  --muted: #93a0b8;
  --line: #243049;
  --primary: #3b82f6;
  --primary-soft: #1d4ed8;
  --trust: #34d399;
  --warn: #fbbf24;
  --danger: #f87171;
  --demo: #c084fc;
}
* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; background: var(--bg); color: var(--ink); font-family: Inter, Segoe UI, Arial, sans-serif; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
.top {
  display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between;
  padding: 14px 20px; border-bottom: 1px solid var(--line); background: rgba(11,18,32,.9); position: sticky; top: 0; z-index: 5;
}
.brand { display: flex; gap: 10px; align-items: center; }
.cmx { width: 36px; height: 36px; display: grid; place-items: center; border-radius: 10px; background: var(--primary); font-size: 11px; font-weight: 800; }
.brand small { display: block; color: var(--muted); font-size: 11px; }
nav { display: flex; gap: 14px; font-size: 14px; color: var(--muted); }
nav a:hover { color: var(--ink); }
.top-actions { display: flex; gap: 10px; align-items: center; }
.filter { font-size: 12px; color: var(--muted); display: flex; gap: 6px; align-items: center; }
select, input, textarea {
  background: #0e1626; border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px;
}
textarea { width: 100%; min-height: 120px; resize: vertical; }
.pill { font-size: 12px; border: 1px solid var(--line); border-radius: 999px; padding: 4px 10px; color: var(--muted); }
main { max-width: 1100px; margin: 0 auto; padding: 28px 18px 80px; }
.hero h1 { font-size: clamp(28px, 4vw, 42px); line-height: 1.15; margin: 0 0 12px; }
.hero p, .lead { color: var(--muted); max-width: 68ch; }
.grid { display: grid; gap: 14px; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px; margin-top: 22px; }
.card, .panel {
  background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 16px;
}
.card h2, .panel h2, .panel h3 { margin: 0 0 8px; font-size: 16px; }
.muted { color: var(--muted); font-size: 13px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  background: var(--primary); border: 0; border-radius: 8px; padding: 10px 14px; font-weight: 600; cursor: pointer;
}
.btn.secondary { background: transparent; border: 1px solid var(--line); }
.btn.ghost { background: transparent; color: var(--muted); }
.row { display: flex; flex-wrap: wrap; gap: 10px; }
.kpi { font-size: 28px; font-weight: 800; }
.tag { display: inline-block; font-size: 11px; padding: 2px 8px; border-radius: 999px; background: #1e293b; margin-right: 6px; }
.tag.demo { background: #3b0764; color: #e9d5ff; }
.tag.real { background: #052e16; color: #bbf7d0; }
.qnum { color: var(--primary); font-size: 13px; font-weight: 700; }
.help { border-left: 3px solid var(--primary); padding-left: 10px; color: var(--muted); }
.example { background: #0c1220; border-radius: 10px; padding: 10px; font-size: 13px; color: #d6deee; }
.progress { height: 8px; background: #0c1220; border-radius: 99px; overflow: hidden; }
.progress > span { display: block; height: 100%; background: linear-gradient(90deg, var(--primary), var(--trust)); }
.table-wrap { overflow: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { border-bottom: 1px solid var(--line); padding: 8px; text-align: left; vertical-align: top; }
th { color: var(--muted); font-weight: 600; }
.chain { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin: 10px 0; }
.node { background: #0c1220; border: 1px solid var(--line); border-radius: 10px; padding: 8px 10px; }
.node b { display: block; font-size: 12px; }
.arrow { color: var(--muted); }
.guide-layout { display: grid; grid-template-columns: minmax(240px, 340px) 1fr; gap: 14px; align-items: start; }
.guide-pane { position: sticky; top: 78px; }
.resume { margin: 18px 0; }
@media (max-width: 860px) {
  .guide-layout { grid-template-columns: 1fr; }
  .guide-pane { position: static; }
}
.login { max-width: 420px; }
.err { color: var(--danger); font-size: 13px; }
.ok { color: var(--trust); }
.foot { border-top: 1px solid var(--line); padding: 16px 20px 28px; color: var(--muted); font-size: 12px; text-align: center; }
.scores { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 8px; }
.scores label { font-size: 11px; color: var(--muted); display: grid; gap: 4px; }
@media (max-width: 720px) {
  nav { width: 100%; }
}