/* Орбита — блог о космосе. Статика, без внешних зависимостей. */

:root {
  --bg:      #0b0e17;
  --surface: #141a28;
  --surface2:#1b2234;
  --text:    #e7e9f0;
  --muted:   #99a2b6;
  --accent:  #7aa2ff;
  --accent2: #ffd27a;
  --border:  #263049;
  --maxw:    760px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  line-height: 1.7;
  background-color: var(--bg);
  background-image:
    radial-gradient(1px 1px at 20% 30%, rgba(255,255,255,.7), transparent),
    radial-gradient(1px 1px at 75% 15%, rgba(255,255,255,.5), transparent),
    radial-gradient(1px 1px at 50% 65%, rgba(255,255,255,.45), transparent),
    radial-gradient(1.5px 1.5px at 85% 80%, rgba(255,255,255,.55), transparent),
    radial-gradient(1px 1px at 10% 85%, rgba(255,255,255,.4), transparent),
    radial-gradient(1200px 600px at 50% -10%, rgba(122,162,255,.10), transparent);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

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

/* Header */
.site-header {
  border-bottom: 1px solid var(--border);
  background: rgba(11,14,23,.75);
  backdrop-filter: blur(8px);
  position: sticky; top: 0; z-index: 10;
}
.site-header .container {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 16px; padding-bottom: 16px; gap: 16px; flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.25rem; color: var(--text); letter-spacing: .3px; }
.brand:hover { text-decoration: none; }
.brand .logo { width: 26px; height: 26px; flex: 0 0 auto; }
.nav { display: flex; gap: 20px; }
.nav a { color: var(--muted); font-size: .95rem; }
.nav a:hover { color: var(--text); text-decoration: none; }

/* Hero */
.hero { padding: 54px 0 20px; text-align: center; }
.hero h1 { font-size: 2.1rem; margin: 0 0 10px; letter-spacing: .2px; }
.hero p { color: var(--muted); font-size: 1.1rem; max-width: 560px; margin: 0 auto; }

/* Post list */
main { padding: 24px 0 64px; }
.post-list { list-style: none; padding: 0; margin: 24px 0 0; display: grid; gap: 18px; }
.card {
  background: linear-gradient(180deg, var(--surface), var(--surface2));
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 22px 24px;
  transition: transform .15s ease, border-color .15s ease;
}
.card:hover { transform: translateY(-2px); border-color: #35416180; }
.card .date { color: var(--accent2); font-size: .82rem; letter-spacing: .4px; text-transform: uppercase; }
.card h2 { margin: 8px 0 8px; font-size: 1.35rem; line-height: 1.3; }
.card h2 a { color: var(--text); }
.card h2 a:hover { color: var(--accent); text-decoration: none; }
.card p { margin: 0 0 14px; color: var(--muted); }
.card .more { font-size: .92rem; font-weight: 600; }

/* Article */
.article { padding-top: 32px; }
.article .date { color: var(--accent2); font-size: .85rem; letter-spacing: .4px; text-transform: uppercase; }
.article h1 { font-size: 2rem; line-height: 1.25; margin: 10px 0 18px; }
.article .content p { margin: 0 0 18px; }
.article .content h2 { font-size: 1.4rem; margin: 34px 0 12px; }
.article .content blockquote {
  margin: 24px 0; padding: 4px 20px; border-left: 3px solid var(--accent);
  color: var(--muted); font-style: italic;
}
.article .content ul { color: var(--text); padding-left: 22px; }
.article .content li { margin: 6px 0; }
.back { display: inline-block; margin-top: 28px; color: var(--muted); }

/* Footer */
.site-footer { border-top: 1px solid var(--border); color: var(--muted); font-size: .9rem; }
.site-footer .container { padding-top: 26px; padding-bottom: 40px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
.site-footer a { color: var(--muted); }

/* Error pages */
.notice { text-align: center; padding: 90px 0; }
.notice .code { font-size: 4rem; font-weight: 800; color: var(--accent); margin: 0; }
.notice p { color: var(--muted); font-size: 1.1rem; }

@media (max-width: 520px) {
  .hero h1 { font-size: 1.7rem; }
  .article h1 { font-size: 1.6rem; }
  .site-header .container { justify-content: center; }
}