/* ===== Guard AI Docs — тема и раскладка ===== */
:root {
  --bg: #0a0b0f;
  --bg-soft: #0f1117;
  --bg-elev: #14161f;
  --bg-code: #0c0e14;
  --border: #20242f;
  --border-soft: #1a1d27;
  --text: #e6e8ee;
  --text-dim: #a3a8b5;
  --text-mut: #6b7180;
  --accent: #4f8cff;
  --accent-2: #7c5cff;
  --accent-soft: rgba(79, 140, 255, 0.12);
  --green: #2fbf71;
  --amber: #f5a623;
  --red: #ff5d5d;
  --radius: 12px;
  --sidebar-w: 280px;
  --toc-w: 220px;
  --maxw: 820px;
  --mono: "JetBrains Mono", "SF Mono", ui-monospace, Menlo, Consolas, monospace;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  font-size: 15.5px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* radial glow background */
body::before {
  content: "";
  position: fixed; inset: 0;
  background:
    radial-gradient(800px 500px at 15% -5%, rgba(124, 92, 255, 0.10), transparent 60%),
    radial-gradient(700px 500px at 100% 0%, rgba(79, 140, 255, 0.10), transparent 55%);
  pointer-events: none; z-index: 0;
}

/* ===== Topbar ===== */
.topbar {
  position: sticky; top: 0; z-index: 40;
  height: 60px; display: flex; align-items: center; gap: 18px;
  padding: 0 22px;
  background: rgba(10, 11, 15, 0.78);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: -0.2px; }
.brand .logo {
  width: 30px; height: 30px; border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: grid; place-items: center; color: #fff; font-weight: 800; font-size: 15px;
  box-shadow: 0 4px 14px rgba(79, 140, 255, 0.35);
}
.brand .name { font-size: 16px; }
.brand .badge {
  font-size: 11px; color: var(--text-mut); font-weight: 600;
  border: 1px solid var(--border); border-radius: 999px; padding: 2px 8px; margin-left: 4px;
}
.topbar .spacer { flex: 1; }
.topbar .search-trigger {
  display: flex; align-items: center; gap: 8px;
  background: var(--bg-elev); border: 1px solid var(--border); color: var(--text-mut);
  border-radius: 10px; padding: 7px 12px; font-size: 13.5px; cursor: pointer; min-width: 200px;
}
.topbar .search-trigger:hover { border-color: var(--accent); color: var(--text-dim); }
.topbar .search-trigger kbd {
  margin-left: auto; font-family: var(--sans); font-size: 11px; color: var(--text-mut);
  border: 1px solid var(--border); border-radius: 5px; padding: 1px 6px; background: var(--bg-soft);
}
.topbar .tlink {
  font-size: 13.5px; color: var(--text-dim); font-weight: 600;
  border: 1px solid var(--border); border-radius: 9px; padding: 7px 13px;
}
.topbar .tlink:hover { border-color: var(--accent); color: var(--text); text-decoration: none; }
.topbar .tlink.primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.menu-btn { display: none; background: none; border: 1px solid var(--border); color: var(--text);
  border-radius: 8px; width: 38px; height: 38px; cursor: pointer; font-size: 18px; }

/* ===== Layout ===== */
.layout { position: relative; z-index: 1; display: flex; max-width: 1400px; margin: 0 auto; }
.sidebar {
  width: var(--sidebar-w); flex: none; padding: 26px 14px 60px 22px;
  position: sticky; top: 60px; height: calc(100vh - 60px); overflow-y: auto;
}
.sidebar .group { margin-bottom: 22px; }
.sidebar .group-title {
  font-size: 11px; text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--text-mut); font-weight: 700; padding: 0 12px 8px;
}
.sidebar a.nav-item {
  display: block; padding: 7px 12px; border-radius: 8px; color: var(--text-dim);
  font-size: 14px; font-weight: 500; line-height: 1.4;
}
.sidebar a.nav-item:hover { background: var(--bg-elev); color: var(--text); text-decoration: none; }
.sidebar a.nav-item.active {
  background: var(--accent-soft); color: var(--accent); font-weight: 600;
  box-shadow: inset 2px 0 0 var(--accent);
}

/* ===== Content ===== */
.content { flex: 1; min-width: 0; padding: 36px 40px 100px; }
.content-inner { max-width: var(--maxw); margin: 0 auto; }
.breadcrumb { font-size: 13px; color: var(--text-mut); margin-bottom: 10px; }
.breadcrumb span { color: var(--text-dim); }
h1.page-title { font-size: 34px; line-height: 1.15; margin: 0 0 8px; letter-spacing: -0.5px; }
.page-desc { font-size: 17px; color: var(--text-dim); margin: 0 0 28px; }
.content h2 {
  font-size: 22px; margin: 38px 0 14px; letter-spacing: -0.3px; scroll-margin-top: 80px;
  padding-top: 6px;
}
.content p { margin: 14px 0; color: #d4d7df; }
.content code.inline {
  font-family: var(--mono); font-size: 0.86em; background: var(--bg-elev);
  border: 1px solid var(--border-soft); border-radius: 6px; padding: 1.5px 6px; color: #cdd6ff;
}
.content ul, .content ol { margin: 14px 0; padding-left: 22px; color: #d4d7df; }
.content li { margin: 7px 0; }
.content ol.steps { list-style: none; counter-reset: step; padding-left: 0; }
.content ol.steps li {
  counter-increment: step; position: relative; padding: 4px 0 4px 44px; margin: 12px 0;
}
.content ol.steps li::before {
  content: counter(step); position: absolute; left: 0; top: 2px;
  width: 28px; height: 28px; border-radius: 8px; display: grid; place-items: center;
  background: var(--accent-soft); color: var(--accent); font-weight: 700; font-size: 14px;
  border: 1px solid rgba(79,140,255,0.25);
}

/* code blocks */
.codeblock { position: relative; margin: 18px 0; }
.codeblock .cb-head {
  display: flex; align-items: center; justify-content: space-between;
  background: var(--bg-elev); border: 1px solid var(--border); border-bottom: none;
  border-radius: var(--radius) var(--radius) 0 0; padding: 7px 14px;
  font-family: var(--mono); font-size: 12px; color: var(--text-mut);
}
.codeblock pre {
  margin: 0; background: var(--bg-code); border: 1px solid var(--border);
  border-radius: 0 0 var(--radius) var(--radius); padding: 16px 18px; overflow-x: auto;
}
.codeblock.no-head pre { border-radius: var(--radius); }
.codeblock code { font-family: var(--mono); font-size: 13px; line-height: 1.6; color: #d4d7df; }
.copy-btn {
  background: var(--bg-soft); border: 1px solid var(--border); color: var(--text-dim);
  border-radius: 7px; padding: 3px 10px; font-size: 12px; cursor: pointer; font-weight: 600;
}
.copy-btn:hover { border-color: var(--accent); color: var(--text); }
.copy-btn.done { color: var(--green); border-color: var(--green); }

/* syntax tokens */
.tok-key { color: #7c9cff; }
.tok-str { color: #6fcf97; }
.tok-num { color: #f2a86c; }
.tok-com { color: #5d6473; font-style: italic; }
.tok-punc { color: #9aa3b2; }
.tok-add { color: #6fcf97; }
.tok-del { color: #ff7b7b; }

/* tables */
.table-wrap { overflow-x: auto; margin: 18px 0; border: 1px solid var(--border); border-radius: var(--radius); }
table { border-collapse: collapse; width: 100%; font-size: 14px; }
th, td { text-align: left; padding: 11px 16px; border-bottom: 1px solid var(--border-soft); vertical-align: top; }
th { background: var(--bg-elev); color: var(--text); font-weight: 600; font-size: 13px; }
tr:last-child td { border-bottom: none; }
td code.inline { white-space: nowrap; }

/* callouts */
.callout {
  display: flex; gap: 12px; margin: 18px 0; padding: 14px 16px; border-radius: var(--radius);
  border: 1px solid var(--border); background: var(--bg-soft); font-size: 14.5px;
}
.callout .ic { font-size: 16px; line-height: 1.5; flex: none; }
.callout.info { border-color: rgba(79,140,255,0.3); background: rgba(79,140,255,0.07); }
.callout.tip { border-color: rgba(47,191,113,0.3); background: rgba(47,191,113,0.07); }
.callout.warn { border-color: rgba(245,166,35,0.3); background: rgba(245,166,35,0.07); }

/* cards */
.cards { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 20px 0; }
.card {
  display: block; padding: 16px 18px; border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--bg-soft); transition: border-color .15s, transform .15s;
}
.card:hover { border-color: var(--accent); transform: translateY(-2px); text-decoration: none; }
.card .c-title { font-weight: 700; color: var(--text); margin-bottom: 3px; }
.card .c-text { font-size: 13.5px; color: var(--text-mut); }

/* pager */
.pager { display: flex; justify-content: space-between; gap: 14px; margin-top: 52px;
  border-top: 1px solid var(--border); padding-top: 26px; }
.pager a {
  flex: 1; padding: 14px 18px; border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--bg-soft); color: var(--text-dim);
}
.pager a:hover { border-color: var(--accent); text-decoration: none; }
.pager a.next { text-align: right; }
.pager .lbl { font-size: 12px; color: var(--text-mut); }
.pager .ttl { font-weight: 700; color: var(--text); }

/* ===== TOC (on this page) ===== */
.toc { width: var(--toc-w); flex: none; padding: 36px 22px 60px 0;
  position: sticky; top: 60px; height: calc(100vh - 60px); overflow-y: auto; }
.toc .toc-title { font-size: 11px; text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--text-mut); font-weight: 700; margin-bottom: 12px; }
.toc a { display: block; font-size: 13px; color: var(--text-mut); padding: 4px 0; line-height: 1.4; }
.toc a:hover { color: var(--text-dim); text-decoration: none; }
.toc a.active { color: var(--accent); }

/* ===== Search modal ===== */
.search-overlay {
  position: fixed; inset: 0; z-index: 100; display: none;
  background: rgba(0,0,0,0.55); backdrop-filter: blur(3px); padding-top: 12vh;
}
.search-overlay.open { display: block; }
.search-box {
  max-width: 600px; margin: 0 auto; background: var(--bg-elev); border: 1px solid var(--border);
  border-radius: 14px; overflow: hidden; box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}
.search-box input {
  width: 100%; border: none; background: transparent; color: var(--text);
  font-size: 16px; padding: 18px 20px; outline: none; font-family: var(--sans);
  border-bottom: 1px solid var(--border);
}
.search-results { max-height: 50vh; overflow-y: auto; padding: 8px; }
.search-results a {
  display: block; padding: 11px 14px; border-radius: 9px; color: var(--text-dim);
}
.search-results a:hover, .search-results a.sel { background: var(--accent-soft); color: var(--text); text-decoration: none; }
.search-results .r-title { font-weight: 600; color: var(--text); }
.search-results .r-group { font-size: 12px; color: var(--text-mut); }
.search-results .r-snip { font-size: 12.5px; color: var(--text-mut); margin-top: 2px; }
.search-empty { padding: 26px; text-align: center; color: var(--text-mut); }

/* hero on homepage */
.hero { text-align: center; padding: 30px 0 10px; }
.hero h1 { font-size: 44px; letter-spacing: -1px; margin: 0 0 12px;
  background: linear-gradient(120deg, #fff, #9bb8ff); -webkit-background-clip: text;
  -webkit-text-fill-color: transparent; }
.hero p { font-size: 18px; color: var(--text-dim); max-width: 600px; margin: 0 auto 24px; }
.hero .cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.hero .cta a { padding: 12px 22px; border-radius: 11px; font-weight: 600; }
.hero .cta .b1 { background: var(--accent); color: #fff; }
.hero .cta .b2 { border: 1px solid var(--border); color: var(--text); }

/* mobile */
.scrim { display: none; }
@media (max-width: 1100px) { .toc { display: none; } }
@media (max-width: 860px) {
  .menu-btn { display: block; }
  .topbar .search-trigger { min-width: 0; }
  .topbar .search-trigger .ph { display: none; }
  .sidebar {
    position: fixed; top: 60px; left: 0; z-index: 50; background: var(--bg-soft);
    border-right: 1px solid var(--border); transform: translateX(-100%); transition: transform .2s;
    width: 86%; max-width: 320px;
  }
  .sidebar.open { transform: translateX(0); }
  .scrim.open { display: block; position: fixed; inset: 60px 0 0 0; z-index: 45; background: rgba(0,0,0,0.5); }
  .content { padding: 26px 20px 80px; }
  .cards { grid-template-columns: 1fr; }
  h1.page-title { font-size: 28px; }
  .hero h1 { font-size: 34px; }
  .topbar .tlink:not(.primary) { display: none; }
}