/* "Источник знаний" — styles for the public /knowledge pages (rendered in server/knowledge.ts) and the editor preview. */
:root {
  color-scheme: dark light;
  --bg: #0a0a0c; --panel: #141417; --panel-2: #1a1a1e; --line: #232329; --line-2: #2e2e35;
  --text: #ececef; --text-2: #b4b4bc; --muted: #71717a; --accent: #8b7cf6; --accent-2: #b3a9ff; --code: #1c1c21;
}
@media (prefers-color-scheme: light) {
  :root {
    --bg: #fafafb; --panel: #ffffff; --panel-2: #f3f3f6; --line: #e4e4ea; --line-2: #d4d4dc;
    --text: #18181b; --text-2: #3f3f46; --muted: #71717a; --accent: #6d5bf0; --accent-2: #5a48d8; --code: #efeff3;
  }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 16px/1.65 -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent-2); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; }

/* header / footer */
.top { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.top-in { max-width: 1080px; margin: 0 auto; padding: 12px 20px; display: flex; align-items: center; gap: 22px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 700; font-size: 15px; letter-spacing: .01em; white-space: nowrap; }
.brand:hover { text-decoration: none; }
.brand svg { width: 24px; height: 24px; }
.top nav { display: flex; gap: 4px; flex: 1; overflow-x: auto; scrollbar-width: none; }
.top nav::-webkit-scrollbar { display: none; }
.top nav a { color: var(--text-2); font-size: 14px; padding: 6px 12px; border-radius: 8px; white-space: nowrap; }
.top nav a:hover { background: var(--panel-2); text-decoration: none; }
.top nav a.on { background: var(--panel-2); color: var(--text); font-weight: 600; }
.back { font-size: 13px; font-weight: 600; white-space: nowrap; }
@media (max-width: 720px) { .top-in { flex-wrap: wrap; gap: 8px 14px; } .top nav { order: 3; flex-basis: 100%; } .back { margin-left: auto; } }
.foot { border-top: 1px solid var(--line); margin-top: 72px; }
.foot-in { max-width: 1080px; margin: 0 auto; padding: 24px 20px 40px; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; color: var(--muted); font-size: 13px; }
.foot-in a { color: var(--text-2); }

/* index */
.wrap { max-width: 1080px; margin: 0 auto; padding: 36px 20px 0; }
.hero { padding: 28px 0 18px; }
.hero h1 { font-size: clamp(30px, 5vw, 44px); line-height: 1.1; margin: 0 0 12px; letter-spacing: -.02em; }
.hero p { color: var(--text-2); font-size: 18px; max-width: 56ch; margin: 0 0 14px; }
.search { display: flex; gap: 8px; margin: 18px 0 14px; max-width: 520px; }
.search input { flex: 1; min-width: 0; background: var(--panel); border: 1px solid var(--line-2); color: var(--text); border-radius: 10px; padding: 11px 14px; font-size: 15px; outline: none; }
.search input:focus { border-color: var(--accent); }
.search button, .btn { background: var(--accent); color: #fff; border: 0; border-radius: 10px; padding: 11px 18px; font-size: 14px; font-weight: 600; cursor: pointer; display: inline-block; }
.btn:hover { text-decoration: none; filter: brightness(1.08); }
.tagbar { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 10px; }
.tagbar a { font-size: 13px; color: var(--text-2); border: 1px solid var(--line-2); border-radius: 999px; padding: 4px 12px; }
.tagbar a:hover, .tagbar a.on { border-color: var(--accent); color: var(--text); text-decoration: none; }
.sec { font-size: 13px; text-transform: uppercase; letter-spacing: .09em; color: var(--accent); margin: 34px 0 16px; }
.empty { color: var(--muted); padding: 40px 0; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 18px; }
.card { display: flex; flex-direction: column; background: var(--panel); border: 1px solid var(--line); border-radius: 14px; overflow: hidden; color: inherit; transition: transform .15s, border-color .15s; }
.card:hover { transform: translateY(-2px); border-color: var(--line-2); text-decoration: none; }
.card-cover { aspect-ratio: 16 / 9; background-size: cover; background-position: center; background-color: var(--panel-2); }
.card-cover.plain { display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, color-mix(in srgb, var(--c) 28%, var(--panel)), var(--panel-2)); }
.card-cover.plain span { color: color-mix(in srgb, var(--c) 80%, var(--text)); font-weight: 700; letter-spacing: .12em; text-transform: uppercase; font-size: 13px; opacity: .8; }
.card-body { padding: 16px 18px 18px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.card-meta { display: flex; align-items: center; justify-content: space-between; gap: 8px; color: var(--muted); font-size: 12.5px; }
.card h3 { margin: 0; font-size: 18px; line-height: 1.3; letter-spacing: -.01em; }
.card p { margin: 0; color: var(--text-2); font-size: 14.5px; line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.tags { display: flex; flex-wrap: wrap; gap: 4px 10px; margin-top: auto; padding-top: 4px; color: var(--muted); font-size: 12.5px; }
.badge { display: inline-block; font-size: 11.5px; font-weight: 700; text-transform: uppercase; letter-spacing: .07em; color: var(--c); background: color-mix(in srgb, var(--c) 14%, transparent); border-radius: 6px; padding: 2px 8px; }
.badge.big { font-size: 12.5px; padding: 3px 10px; }
.pager { display: flex; justify-content: space-between; align-items: center; margin: 32px 0 0; color: var(--muted); font-size: 14px; }

/* post */
.post-wrap { max-width: 1080px; margin: 0 auto; padding: 36px 20px 0; }
.post { max-width: 740px; margin: 0 auto; }
.crumbs { color: var(--muted); font-size: 13.5px; margin-bottom: 18px; }
.crumbs a { color: var(--text-2); }
.post h1 { font-size: clamp(28px, 4.6vw, 40px); line-height: 1.15; letter-spacing: -.02em; margin: 12px 0 14px; }
.lead { font-size: 19px; line-height: 1.55; color: var(--text-2); margin: 0 0 16px; }
.meta { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 10px; color: var(--muted); font-size: 13.5px; margin-bottom: 26px; }
.meta .tag { color: var(--text-2); }
.cover { width: 100%; border-radius: 14px; border: 1px solid var(--line); margin: 0 0 28px; }
.viz, .video { margin: 0 0 28px; }
.viz iframe { width: 100%; height: min(78vh, 720px); border: 1px solid var(--line); border-radius: 14px; background: #fff; display: block; }
.viz-open { display: inline-block; margin-top: 8px; font-size: 13.5px; }
.video { position: relative; aspect-ratio: 16 / 9; border-radius: 14px; overflow: hidden; border: 1px solid var(--line); background: #000; }
.video iframe, .video video { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.file { display: inline-flex; align-items: center; gap: 10px; background: var(--panel); border: 1px solid var(--line-2); border-radius: 12px; padding: 12px 18px; margin: 0 0 26px; color: var(--text); font-weight: 600; font-size: 14.5px; }
.file:hover { border-color: var(--accent); text-decoration: none; }
.toc { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 14px 18px; margin: 0 0 28px; display: flex; flex-direction: column; gap: 5px; font-size: 14.5px; }
.toc-t { font-size: 12px; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); font-weight: 700; margin-bottom: 4px; }
.toc a { color: var(--text-2); }
.toc a.l3 { padding-left: 16px; font-size: 13.5px; }

/* article text */
.prose { font-size: 17px; line-height: 1.75; }
.prose > *:first-child { margin-top: 0; }
.prose p { margin: 0 0 1.15em; color: var(--text); }
.prose h1, .prose h2, .prose h3, .prose h4 { line-height: 1.25; letter-spacing: -.01em; scroll-margin-top: 80px; }
.prose h1 { font-size: 30px; margin: 1.8em 0 .6em; }
.prose h2 { font-size: 25px; margin: 1.9em 0 .6em; padding-top: .3em; }
.prose h3 { font-size: 20px; margin: 1.6em 0 .5em; }
.prose h4 { font-size: 17px; margin: 1.4em 0 .4em; }
.prose ul, .prose ol { margin: 0 0 1.15em; padding-left: 1.4em; }
.prose li { margin-bottom: .35em; }
.prose li > ul, .prose li > ol { margin: .35em 0 0; }
.prose a { text-decoration: underline; text-underline-offset: 3px; text-decoration-color: color-mix(in srgb, var(--accent-2) 45%, transparent); }
.prose blockquote { margin: 0 0 1.2em; padding: 2px 18px; border-left: 3px solid var(--accent); color: var(--text-2); background: var(--panel); border-radius: 0 10px 10px 0; }
.prose code { background: var(--code); border-radius: 5px; padding: 1px 6px; font: 0.88em ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.prose pre { background: var(--code); border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; overflow-x: auto; margin: 0 0 1.2em; }
.prose pre code { background: none; padding: 0; font-size: 14px; line-height: 1.6; }
.prose hr { border: 0; border-top: 1px solid var(--line); margin: 2.2em 0; }
.prose img { border-radius: 12px; border: 1px solid var(--line); margin: .4em 0; display: block; }
.table-wrap { overflow-x: auto; margin: 0 0 1.2em; border: 1px solid var(--line); border-radius: 12px; }
.prose table { border-collapse: collapse; width: 100%; font-size: 15px; }
.prose th, .prose td { padding: 9px 14px; text-align: left; border-bottom: 1px solid var(--line); }
.prose th { background: var(--panel); font-weight: 600; }
.prose tr:last-child td { border-bottom: 0; }

.related { max-width: 1080px; margin: 64px auto 0; }
.related h2 { font-size: 13px; text-transform: uppercase; letter-spacing: .09em; color: var(--accent); margin: 0 0 16px; }