/* DeadCourse — сайт. Цвета из docs/design/design_tokens.json. Без внешних шрифтов и скриптов. */
:root {
  --steel-900: #0d1521;
  --steel-700: #1c2a3a;
  --steel-500: #2a3a4d;
  --text: #e8eef4;
  --text-2: #8fa3b8;
  --cryo: #6fd3e6;
  --star: #f2a541;
  --alarm: #e0432f;
  --safe: #4ecf8f;
  --hull: #c9d2da;
  --max: 960px;
}

* { box-sizing: border-box; }

html { background: var(--steel-900); }

body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 85% -10%, rgba(242, 165, 65, 0.18), transparent 60%),
    linear-gradient(180deg, var(--steel-700) 0%, var(--steel-900) 520px);
  font: 17px/1.6 "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", Arial, sans-serif;
  min-height: 100vh;
}

a { color: var(--cryo); }
a:hover { color: var(--text); }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }

header.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 0;
}

.brand { display: flex; align-items: center; gap: 12px; color: var(--text); text-decoration: none; }
.brand img { width: 40px; height: 40px; }
.brand span { font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; font-size: 15px; }

nav.top { display: flex; flex-wrap: wrap; gap: 4px 18px; justify-content: flex-end; }
nav.top a { color: var(--text-2); text-decoration: none; font-size: 15px; }
nav.top a:hover, nav.top a[aria-current="page"] { color: var(--text); }

.hero {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 40px;
  align-items: center;
  padding: 48px 0 56px;
}

.hero h1 {
  margin: 0 0 6px;
  font-size: clamp(38px, 6vw, 60px);
  line-height: 1.05;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.hero .tag { margin: 0 0 22px; color: var(--star); font-weight: 600; letter-spacing: 0.04em; }
.hero p.lead { margin: 0 0 24px; font-size: 19px; color: var(--text); }
.hero img { width: 100%; height: auto; max-width: 360px; justify-self: center; filter: drop-shadow(0 20px 60px rgba(242, 165, 65, 0.25)); }

.status {
  display: inline-block;
  padding: 6px 14px;
  border: 1px solid var(--steel-500);
  border-radius: 999px;
  color: var(--text-2);
  font-size: 14px;
}
.status b { color: var(--safe); font-weight: 600; }

section { padding: 36px 0; border-top: 1px solid var(--steel-500); }
section h2 { margin: 0 0 18px; font-size: 24px; letter-spacing: 0.04em; }

.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }

.card {
  padding: 18px 20px;
  background: rgba(28, 42, 58, 0.6);
  border: 1px solid var(--steel-500);
  border-radius: 12px;
}
.card h3 { margin: 0 0 6px; font-size: 17px; }
.card p { margin: 0; color: var(--text-2); font-size: 15px; }
.card.c1 { border-top: 3px solid var(--cryo); }
.card.c2 { border-top: 3px solid var(--star); }
.card.c3 { border-top: 3px solid var(--safe); }

dl.facts { display: grid; grid-template-columns: max-content 1fr; gap: 8px 24px; margin: 0; }
dl.facts dt { color: var(--text-2); }
dl.facts dd { margin: 0; }

footer.bottom { padding: 28px 0 40px; border-top: 1px solid var(--steel-500); color: var(--text-2); font-size: 14px; }
footer.bottom a { color: var(--text-2); }

/* Политика конфиденциальности */
article.doc { padding: 24px 0 48px; max-width: 760px; }
article.doc h1 { font-size: 34px; margin: 10px 0 4px; }
article.doc .updated { color: var(--text-2); margin: 0 0 28px; }
article.doc h2 { font-size: 21px; margin: 34px 0 10px; }
article.doc h3 { font-size: 17px; margin: 22px 0 6px; }
article.doc ul { padding-left: 22px; }
article.doc li { margin: 4px 0; }
article.doc table { width: 100%; border-collapse: collapse; font-size: 15px; margin: 10px 0; }
article.doc th, article.doc td { text-align: left; vertical-align: top; padding: 8px 10px; border-bottom: 1px solid var(--steel-500); }
article.doc th { color: var(--text-2); font-weight: 600; }

@media (max-width: 760px) {
  .hero { grid-template-columns: 1fr; padding-top: 24px; }
  .hero img { max-width: 220px; order: -1; }
  .grid { grid-template-columns: 1fr; }
  header.top { flex-wrap: wrap; }
  nav.top { gap: 4px 14px; }
  dl.facts { grid-template-columns: 1fr; gap: 2px; }
  dl.facts dd { margin-bottom: 10px; }
  article.doc table, article.doc thead, article.doc tbody, article.doc tr, article.doc th, article.doc td { display: block; }
  article.doc thead { display: none; }
  article.doc td { border-bottom: 0; padding: 4px 0; }
  article.doc tr { border-bottom: 1px solid var(--steel-500); padding: 8px 0; }
}