:root {
  --bg: #0f1420;
  --bg-soft: #151b2b;
  --card: #171e2e;
  --text: #e6e9ef;
  --muted: #9aa4b2;
  --accent: #5b8cff;
  --accent-soft: #23325c;
  --border: #28324a;
}
* { box-sizing: border-box; }
html, body { background: var(--bg); }
body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  line-height: 1.55;
}
a { color: var(--accent); }
.wrap { max-width: 1080px; margin: 0 auto; padding: 32px 20px 64px; }
header.hero { padding: 48px 0 24px; }
header.hero h1 { font-size: 2.2rem; margin: 0 0 8px; }
header.hero p { color: var(--muted); margin: 0; font-size: 1.05rem; }
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
  margin-top: 32px;
}
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 22px;
  display: flex;
  flex-direction: column;
  transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
}
.card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 28px rgba(0,0,0,.45);
  border-color: #34406a;
}
.card .tag {
  font-size: .75rem; text-transform: uppercase; letter-spacing: .08em;
  color: var(--accent); font-weight: 600; margin-bottom: 8px;
}
.card h2 { font-size: 1.15rem; margin: 0 0 10px; color: var(--text); }
.card p { color: var(--muted); font-size: .95rem; margin: 0 0 20px; flex: 1; }
.card .links { display: flex; gap: 12px; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 9px 16px; border-radius: 9px;
  text-decoration: none; font-size: .9rem; font-weight: 600;
  border: 1px solid var(--border);
  color: var(--text); background: var(--bg-soft);
}
.btn.primary { background: var(--accent); color: #0b1020; border-color: var(--accent); }
.btn:hover { opacity: .92; }
.back { display: inline-block; margin-bottom: 20px; color: var(--accent); text-decoration: none; font-weight: 600; }

/* ---------- Визитка правообладателя ---------- */
.owner-wrap { display: flex; justify-content: flex-end; margin-top: 40px; }
.owner-card {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px 22px;
  min-width: 260px;
  box-shadow: 0 8px 20px rgba(0,0,0,.35);
}
.owner-created { font-size: 1.05rem; color: var(--text); margin-bottom: 6px; }
.owner-name-accent { font-style: italic; color: var(--accent); font-weight: 600; }
.owner-line { color: var(--muted); font-size: .92rem; }
.owner-line + .owner-line { margin-top: 4px; }
.owner-line a { color: var(--accent); text-decoration: none; }
.owner-line a:hover { text-decoration: underline; }
.owner-label { color: var(--text); font-weight: 600; }

/* ---------- Страница описания (.md) ---------- */
.content {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 14px; padding: 32px;
}
.content h1, .content h2, .content h3 { line-height: 1.25; color: var(--text); }
.content a { color: var(--accent); }
.content pre {
  background: #0b1020; color: #e6e9ef; padding: 16px; border-radius: 10px;
  overflow-x: auto; font-size: .88rem; border: 1px solid var(--border);
}
.content code { font-family: "JetBrains Mono", "Fira Code", Menlo, Consolas, monospace; }
.content :not(pre) > code { background: #223052; color: #e6e9ef; padding: 2px 6px; border-radius: 5px; font-size: .9em; }
.content img { max-width: 100%; height: auto; border-radius: 8px; }
.content table { border-collapse: collapse; width: 100%; margin: 16px 0; }
.content th, .content td { border: 1px solid var(--border); padding: 8px 10px; text-align: left; }
.content th { background: #1c2436; }
.content blockquote {
  border-left: 3px solid var(--accent);
  margin: 16px 0; padding: 4px 16px; color: var(--muted);
  background: #141a28;
}

/* ---------- Страница ноутбука ---------- */
.notebook {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px 24px;
  overflow-x: auto;
}
.notebook .jp-Notebook { padding: 0; background: transparent; }
.notebook .jp-Cell { border: none; box-shadow: none; background: transparent; }
.notebook .jp-InputArea pre,
.notebook .jp-OutputArea pre,
.notebook .highlight pre {
  font-family: "JetBrains Mono", "Fira Code", Menlo, Consolas, monospace;
  font-size: .88rem;
  line-height: 1.45;
}
.notebook .jp-InputArea,
.notebook .jp-OutputArea-output {
  border-radius: 8px;
}
.notebook .jp-RenderedHTMLCommon,
.notebook .jp-RenderedMarkdown { color: var(--text); }
.notebook .jp-RenderedHTMLCommon a,
.notebook .jp-RenderedMarkdown a { color: var(--accent); }
.notebook table { border-collapse: collapse; }
.notebook th, .notebook td { border: 1px solid var(--border); padding: 6px 10px; }
.notebook th { background: #1c2436; color: var(--text); }
.notebook .jp-InputArea-editor,
.notebook .jp-OutputArea-output pre {
  background: #0b1020 !important;
  border: 1px solid var(--border) !important;
  color: #e6e9ef !important;
}