:root {
  color-scheme: dark;
  --bg: #08101f;
  --bg-soft: #101a31;
  --card: rgba(18, 28, 52, 0.92);
  --card-2: rgba(255, 255, 255, 0.05);
  --line: rgba(255, 255, 255, 0.1);
  --text: #eef4ff;
  --muted: #a7b6d6;
  --blue: #38bdf8;
  --green: #22c55e;
  --amber: #f59e0b;
  --red: #ef4444;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(56, 189, 248, 0.18), transparent 34rem),
    radial-gradient(circle at top right, rgba(239, 68, 68, 0.16), transparent 30rem),
    linear-gradient(135deg, #070a12, #111936 55%, #1a0e12);
  color: var(--text);
}
a { color: #7dd3fc; text-decoration: none; }
a:hover { text-decoration: underline; }
p, li { color: #cbd5e1; line-height: 1.55; }
header.hero, main, footer { max-width: 1180px; margin: 0 auto; padding-left: 28px; padding-right: 28px; }
.hero { padding-top: 32px; padding-bottom: 18px; }
.kicker, .tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border-radius: 999px;
  padding: 5px 10px;
  background: rgba(56, 189, 248, 0.12);
  color: #a8e7ff;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.02em;
}
.tag.red { background: rgba(239, 68, 68, 0.13); color: #fecaca; }
.tag.green { background: rgba(34, 197, 94, 0.13); color: #bbf7d0; }
.tag.amber { background: rgba(245, 158, 11, 0.13); color: #fde68a; }
h1 { margin: 12px 0 10px; font-size: clamp(34px, 6vw, 58px); line-height: 0.98; }
h2 { margin: 0 0 14px; font-size: 25px; }
h3 { margin: 0 0 8px; font-size: 18px; }
.lead { max-width: 900px; color: var(--muted); font-size: 18px; line-height: 1.55; }
.topnav {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(12px);
  background: rgba(8, 16, 31, 0.88);
  border-bottom: 1px solid var(--line);
}
.topnav .inner { max-width: 1180px; margin: 0 auto; padding: 10px 28px; display: flex; flex-wrap: wrap; gap: 8px; }
.topnav a {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 11px;
  color: #dbeafe;
  font-size: 13px;
  background: rgba(255, 255, 255, 0.04);
}
.topnav a.primary { border-color: rgba(56, 189, 248, 0.4); background: rgba(56, 189, 248, 0.11); }
main { padding-top: 14px; padding-bottom: 56px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; }
.grid.two { grid-template-columns: repeat(auto-fit, minmax(330px, 1fr)); }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 20px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.22);
}
.card + .card, section + section { margin-top: 16px; }
.callout { border-left: 4px solid var(--amber); background: rgba(245, 158, 11, 0.08); }
.path { display: grid; gap: 10px; }
.step, .day, .check, .metric, .module-row {
  display: grid;
  gap: 10px;
  padding: 13px;
  border-radius: 16px;
  background: var(--card-2);
  border: 1px solid rgba(255, 255, 255, 0.06);
}
.step { grid-template-columns: 42px 1fr; align-items: start; }
.step strong:first-child, .day-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: rgba(56, 189, 248, 0.16);
  color: #e0f2fe;
}
.days { display: grid; gap: 10px; }
.day { grid-template-columns: 70px 1fr auto; align-items: center; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; }
.day .actions { justify-content: flex-end; }
.btn {
  display: inline-flex;
  border: 1px solid rgba(125, 211, 252, 0.35);
  border-radius: 999px;
  padding: 7px 10px;
  color: #dff6ff;
  background: rgba(56, 189, 248, 0.08);
  font-size: 13px;
}
.small { font-size: 13px; color: var(--muted); }
.progress-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 12px; }
.metric b { font-size: 26px; }
.check { grid-template-columns: 28px 1fr; align-items: start; }
.check input { width: 18px; height: 18px; margin-top: 3px; accent-color: var(--green); }
.rubric { width: 100%; border-collapse: collapse; overflow: hidden; border-radius: 14px; }
.rubric th, .rubric td { border: 1px solid var(--line); padding: 10px; color: #dbeafe; vertical-align: top; }
.rubric th { text-align: left; background: rgba(56, 189, 248, 0.11); }
.rubric.compact { margin-top: 14px; }
.rubric.compact th, .rubric.compact td { font-size: 13px; }
footer { padding-bottom: 28px; color: var(--muted); font-size: 13px; }
@media (max-width: 760px) {
  header.hero, main, footer { padding-left: 16px; padding-right: 16px; }
  .topnav .inner { padding-left: 16px; padding-right: 16px; }
  .day { grid-template-columns: 1fr; }
  .day .actions { justify-content: flex-start; }
}
@media print {
  body { background: #fff; color: #111827; }
  .topnav { position: static; background: #fff; }
  .card, .step, .day, .check, .metric, .module-row { box-shadow: none; border-color: #cbd5e1; background: #fff; }
  p, li, .small { color: #374151; }
  a { color: #0369a1; }
}