:root {
  --bg: #0b1020;
  --panel: #111827;
  --border: #263246;
  --text: #f5f7fb;
  --muted: #98a7bb;
  --amber: #f59e0b;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: radial-gradient(circle at top, #172339 0%, var(--bg) 35%);
  color: var(--text);
  font-family: 'Inter', sans-serif;
}
.shell {
  max-width: 920px;
  margin: 0 auto;
  padding: 28px 18px 60px;
}
.card {
  background: rgba(17, 24, 39, 0.92);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 20px;
  margin-bottom: 16px;
}
.eyebrow,
.section-title,
label span {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-weight: 800;
  color: var(--amber);
}
.hero h1 {
  margin: 8px 0 12px;
  font-size: 42px;
  line-height: 1.02;
}
.lede,
.muted,
#result p {
  color: var(--muted);
}
.hero-points {
  margin: 18px 0 0;
  padding-left: 18px;
}
.hero-points li,
#result li {
  margin-bottom: 8px;
  line-height: 1.55;
}
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
label {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
input {
  width: 100%;
  background: #0c1424;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
}
.full-span { grid-column: 1 / -1; }
.actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
button {
  background: var(--amber);
  color: #111827;
  border: 0;
  border-radius: 12px;
  padding: 12px 16px;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}
.result-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}
.result-card {
  background: #0c1424;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px;
}
.result-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--muted);
  margin-bottom: 6px;
}
.result-value {
  font-size: 28px;
  font-weight: 800;
}
.check-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.check {
  border-radius: 14px;
  padding: 14px;
  border: 1px solid var(--border);
  background: #0c1424;
}
.check.pass { border-color: rgba(34, 197, 94, 0.35); }
.check.fail { border-color: rgba(245, 158, 11, 0.35); }
.check strong { display: block; margin-bottom: 6px; }
@media (max-width: 760px) {
  .form-grid,
  .result-grid,
  .check-list { grid-template-columns: 1fr; }
  .hero h1 { font-size: 34px; }
}