/* ============================================================
   Sale Vanlangtoi — Sales Knowledge Portal
   Design system: modern SaaS, premium, minimal, fast.
   Source of truth = docs/sales/*.md. This CSS is authored, not generated.
   ============================================================ */

/* ---------- Tokens ---------- */
:root{
  --font: -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans","Liberation Sans",sans-serif;
  --mono: ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;

  --bg:#ffffff;
  --bg-soft:#f7f9fb;
  --panel:#ffffff;
  --ink:#0f1b26;
  --ink-2:#3d4d5c;
  --muted:#67788a;
  --line:#e6ebf1;
  --line-2:#eef2f6;
  --brand:#0e7c86;
  --brand-ink:#0a5b63;
  --brand-2:#4f46e5;
  --brand-soft:rgba(14,124,134,.09);
  --accent:#0e7c86;
  --code-bg:#f2f5f8;
  --sidebar:#fbfcfe;
  --ring:rgba(14,124,134,.35);
  --shadow-sm:0 1px 2px rgba(16,32,45,.06);
  --shadow:0 1px 3px rgba(16,32,45,.07),0 8px 24px rgba(16,32,45,.06);
  --shadow-lg:0 12px 40px rgba(16,32,45,.14);
  --radius:14px;
  --radius-lg:20px;
  --ok:#0f9d58; --ok-bg:rgba(15,157,88,.10);
  --warn:#c77700; --warn-bg:rgba(199,119,0,.10);
  --info:#2563eb; --info-bg:rgba(37,99,235,.09);
  --sidebar-w:290px; --toc-w:230px; --header-h:60px;
}
:root[data-theme="dark"]{
  --bg:#0c1117;
  --bg-soft:#0f1620;
  --panel:#131b25;
  --ink:#e8eef4;
  --ink-2:#c2ccd6;
  --muted:#8b9bab;
  --line:#20303e;
  --line-2:#1a2733;
  --brand:#3ec8d4;
  --brand-ink:#7ee0e9;
  --brand-2:#96a0ff;
  --brand-soft:rgba(62,200,212,.12);
  --code-bg:#0c141d;
  --sidebar:#0e151d;
  --ring:rgba(62,200,212,.4);
  --shadow-sm:0 1px 2px rgba(0,0,0,.4);
  --shadow:0 1px 3px rgba(0,0,0,.5),0 8px 24px rgba(0,0,0,.4);
  --shadow-lg:0 14px 44px rgba(0,0,0,.6);
  --ok:#41d693; --ok-bg:rgba(65,214,147,.12);
  --warn:#f0b24b; --warn-bg:rgba(240,178,75,.12);
  --info:#7aa2ff; --info-bg:rgba(122,162,255,.12);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation-duration:.001ms!important;transition-duration:.001ms!important}}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:16px;line-height:1.65;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto}
/* Default size for inline icon SVGs (mermaid diagrams opt out below) */
svg{width:18px;height:18px;flex:none}
.diagram svg{width:auto;height:auto;max-width:100%;flex:initial}
.pill svg{width:15px;height:15px;vertical-align:-2px}
.c-foot svg{width:14px;height:14px;vertical-align:-2px}
.crumb svg{width:14px;height:14px}
.hero .eyebrow svg{width:15px;height:15px;vertical-align:-2px}
.maturity .mi svg{width:22px;height:22px}
.sec-title .st-ico svg{width:18px;height:18px}
:focus-visible{outline:2px solid var(--ring);outline-offset:2px;border-radius:6px}
.skip{position:absolute;left:-9999px;top:0;background:var(--brand);color:#fff;padding:10px 14px;border-radius:8px;z-index:200}
.skip:focus{left:12px;top:12px}

/* ---------- Reading progress ---------- */
.progress{position:fixed;top:0;left:0;height:3px;width:0;background:linear-gradient(90deg,var(--brand),var(--brand-2));z-index:120;transition:width .1s linear}

/* ---------- Header ---------- */
.hdr{position:sticky;top:0;z-index:100;height:var(--header-h);display:flex;align-items:center;gap:14px;
  padding:0 20px;background:color-mix(in srgb,var(--bg) 86%,transparent);backdrop-filter:saturate(1.4) blur(10px);
  border-bottom:1px solid var(--line)}
.hdr .logo{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:-.3px;color:var(--ink);white-space:nowrap}
.hdr .logo .mark{width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,var(--brand),var(--brand-2));
  display:grid;place-items:center;color:#fff;font-size:15px;box-shadow:var(--shadow-sm)}
.hdr .logo b{background:linear-gradient(90deg,var(--brand),var(--brand-2));-webkit-background-clip:text;background-clip:text;color:transparent}
.hdr .logo span{font-size:11px;color:var(--muted);font-weight:600}
.hdr .spacer{flex:1}
.search-open{display:flex;align-items:center;gap:10px;min-width:210px;height:38px;padding:0 12px;border:1px solid var(--line);
  border-radius:10px;background:var(--panel);color:var(--muted);cursor:pointer;font-size:13.5px}
.search-open:hover{border-color:var(--brand);color:var(--ink)}
.search-open kbd{margin-left:auto;font:600 11px/1 var(--mono);background:var(--code-bg);border:1px solid var(--line);
  border-radius:6px;padding:3px 6px;color:var(--muted)}
.icon-btn{width:38px;height:38px;display:grid;place-items:center;border:1px solid var(--line);border-radius:10px;
  background:var(--panel);color:var(--ink-2);cursor:pointer}
.icon-btn:hover{border-color:var(--brand);color:var(--brand)}
.icon-btn svg{width:18px;height:18px}
.menu-btn{display:none}

/* ---------- Layout ---------- */
.shell{display:grid;grid-template-columns:var(--sidebar-w) minmax(0,1fr);align-items:start}
.doc-shell{grid-template-columns:var(--sidebar-w) minmax(0,1fr) var(--toc-w)}

/* ---------- Sidebar ---------- */
.side{position:sticky;top:var(--header-h);height:calc(100vh - var(--header-h));overflow-y:auto;
  background:var(--sidebar);border-right:1px solid var(--line);padding:18px 12px 60px}
.side::-webkit-scrollbar{width:8px}.side::-webkit-scrollbar-thumb{background:var(--line);border-radius:8px}
.nav-group{margin-bottom:8px}
.nav-group>.grp-label{font-size:11px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);
  padding:10px 12px 6px}
.nav a.item{display:flex;align-items:center;gap:11px;padding:8px 12px;border-radius:10px;color:var(--ink-2);
  font-size:14px;font-weight:500;line-height:1.3;position:relative}
.nav a.item .ico{width:18px;height:18px;flex:none;color:var(--muted);display:grid;place-items:center}
.nav a.item .ico svg{width:18px;height:18px}
.nav a.item .n{font-variant-numeric:tabular-nums;color:var(--muted);font-size:12px;min-width:16px;text-align:right}
.nav a.item:hover{background:var(--brand-soft);color:var(--ink);text-decoration:none}
.nav a.item.active{background:var(--brand-soft);color:var(--brand);font-weight:650}
.nav a.item.active .ico{color:var(--brand)}
.nav a.item.active::before{content:"";position:absolute;left:0;top:7px;bottom:7px;width:3px;border-radius:0 3px 3px 0;background:var(--brand)}
.subnav{margin:2px 0 6px 30px;border-left:1px solid var(--line);padding-left:2px}
.subnav a{display:block;padding:5px 10px;font-size:13px;color:var(--muted);border-radius:8px;line-height:1.35}
.subnav a:hover{color:var(--ink);background:var(--brand-soft);text-decoration:none}
.subnav a.active{color:var(--brand);font-weight:600}
.side .read-dot{margin-left:auto;width:7px;height:7px;border-radius:50%;background:var(--ok);opacity:0;flex:none}
.side .item.read .read-dot{opacity:1}

/* ---------- Main / article ---------- */
.main{min-width:0}
.wrap{max-width:840px;margin:0 auto;padding:38px 40px 96px}
.crumb{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--muted);margin-bottom:14px}
.crumb a{color:var(--muted)}.crumb a:hover{color:var(--brand)}
.doc-meta{display:flex;flex-wrap:wrap;gap:14px;align-items:center;color:var(--muted);font-size:13px;margin:-4px 0 26px;
  padding-bottom:18px;border-bottom:1px solid var(--line)}
.doc-meta .m{display:inline-flex;align-items:center;gap:6px}
.doc-meta svg{width:15px;height:15px}
.pill{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;padding:4px 10px;border-radius:999px;
  border:1px solid var(--line);background:var(--panel);color:var(--ink-2)}

/* Prose */
article{font-size:16px}
article h1{font-size:32px;line-height:1.18;letter-spacing:-.6px;margin:.1em 0 .5em;font-weight:800}
article h2{font-size:23px;letter-spacing:-.3px;margin:2em 0 .5em;font-weight:750;scroll-margin-top:78px;padding-top:.2em}
article h3{font-size:18px;margin:1.6em 0 .4em;font-weight:700;color:var(--ink);scroll-margin-top:78px}
article h4{font-size:15.5px;margin:1.3em 0 .3em;font-weight:700}
article h2 .anchor,article h3 .anchor{opacity:0;margin-left:8px;color:var(--muted);font-size:.8em;text-decoration:none}
article h2:hover .anchor,article h3:hover .anchor{opacity:1}
article p{margin:.7em 0}
article ul,article ol{padding-left:1.35em;margin:.6em 0}
article li{margin:.28em 0}
article li>ul,article li>ol{margin:.2em 0}
article strong{font-weight:700;color:var(--ink)}
article hr{border:none;border-top:1px solid var(--line);margin:2.2em 0}
article a{color:var(--brand);font-weight:500;text-decoration:none;border-bottom:1px solid transparent;transition:border-color .15s}
article a:hover{border-bottom-color:var(--brand)}
article a[target="_blank"]::after{content:"↗";font-size:.78em;margin-left:2px;color:var(--muted);vertical-align:super}

/* Inline code + code blocks */
code{font-family:var(--mono);font-size:.88em;background:var(--code-bg);border:1px solid var(--line-2);
  padding:.1em .38em;border-radius:6px;color:var(--brand-ink)}
:root[data-theme="dark"] code{color:var(--brand)}
.codeblock{position:relative;margin:1.1em 0}
.codeblock pre{background:var(--code-bg);border:1px solid var(--line);border-radius:12px;padding:16px 18px;overflow-x:auto;font-size:13.5px;line-height:1.6}
.codeblock pre code{background:none;border:none;padding:0;color:var(--ink-2);font-size:inherit}
.copy-code{position:absolute;top:8px;right:8px;font-size:12px;padding:5px 9px;border:1px solid var(--line);border-radius:8px;
  background:var(--panel);color:var(--muted);cursor:pointer;opacity:0;transition:opacity .15s}
.codeblock:hover .copy-code{opacity:1}
.copy-code:hover{color:var(--brand);border-color:var(--brand)}

/* Tables */
.table-wrap{overflow-x:auto;margin:1.2em 0;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow-sm)}
table{border-collapse:collapse;width:100%;font-size:14px;min-width:520px}
thead th{background:var(--bg-soft);font-weight:700;color:var(--ink);text-align:left;white-space:nowrap}
th,td{border-bottom:1px solid var(--line);padding:11px 14px;vertical-align:top}
tbody tr:last-child td{border-bottom:none}
tbody tr:hover td{background:var(--brand-soft)}

/* Callouts (from blockquotes) */
.callout{margin:1.2em 0;padding:14px 16px 14px 46px;border-radius:12px;position:relative;border:1px solid var(--line);
  background:var(--info-bg);border-color:color-mix(in srgb,var(--info) 30%,transparent)}
.callout::before{content:"";position:absolute;left:15px;top:15px;width:20px;height:20px;background-size:contain;background-repeat:no-repeat}
.callout p{margin:.3em 0}.callout p:first-child{margin-top:0}.callout p:last-child{margin-bottom:0}
.callout.info{background:var(--info-bg);border-color:color-mix(in srgb,var(--info) 28%,transparent)}
.callout.warn{background:var(--warn-bg);border-color:color-mix(in srgb,var(--warn) 32%,transparent)}
.callout.success{background:var(--ok-bg);border-color:color-mix(in srgb,var(--ok) 30%,transparent)}
.callout .ci{position:absolute;left:14px;top:14px;width:20px;height:20px}
.callout.info .ci{color:var(--info)}.callout.warn .ci{color:var(--warn)}.callout.success .ci{color:var(--ok)}

/* Mermaid diagrams (pre-rendered inline SVG) */
.diagram{margin:1.4em 0;padding:20px;background:#fbfdff;border:1px solid var(--line);border-radius:16px;
  box-shadow:var(--shadow-sm);overflow-x:auto;text-align:center}
:root[data-theme="dark"] .diagram{background:#f4f8fb}
.diagram svg{max-width:100%;height:auto}

/* Prev / next */
.pager{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:52px;padding-top:26px;border-top:1px solid var(--line)}
.pager a{display:flex;flex-direction:column;gap:4px;padding:16px 18px;border:1px solid var(--line);border-radius:14px;
  background:var(--panel);box-shadow:var(--shadow-sm);color:var(--ink);transition:border-color .15s,transform .15s}
.pager a:hover{border-color:var(--brand);text-decoration:none;transform:translateY(-2px)}
.pager a.next{text-align:right;align-items:flex-end}
.pager small{color:var(--muted);font-size:12px;font-weight:600}
.pager b{font-weight:650;font-size:15px}

/* Back to top */
.totop{position:fixed;right:22px;bottom:22px;width:44px;height:44px;border-radius:50%;background:var(--panel);
  border:1px solid var(--line);box-shadow:var(--shadow);display:grid;place-items:center;color:var(--ink-2);
  cursor:pointer;opacity:0;transform:translateY(10px);transition:.2s;z-index:90}
.totop.show{opacity:1;transform:none}
.totop:hover{color:var(--brand);border-color:var(--brand)}

/* ---------- Right TOC ---------- */
.toc{position:sticky;top:var(--header-h);height:calc(100vh - var(--header-h));overflow-y:auto;padding:38px 18px 40px}
.toc .toc-title{font-size:11px;font-weight:700;letter-spacing:.07em;text-transform:uppercase;color:var(--muted);margin-bottom:10px}
.toc a{display:block;padding:5px 10px;font-size:13px;color:var(--muted);border-left:2px solid var(--line);line-height:1.4}
.toc a.h3{padding-left:22px;font-size:12.5px}
.toc a:hover{color:var(--ink);text-decoration:none}
.toc a.active{color:var(--brand);border-left-color:var(--brand);font-weight:600}

/* ---------- Search modal (CMD+K) ---------- */
.cmdk-scrim{position:fixed;inset:0;background:rgba(8,15,22,.5);backdrop-filter:blur(3px);z-index:200;display:none;
  align-items:flex-start;justify-content:center;padding:12vh 16px 16px}
.cmdk-scrim.open{display:flex}
.cmdk{width:100%;max-width:640px;background:var(--panel);border:1px solid var(--line);border-radius:16px;
  box-shadow:var(--shadow-lg);overflow:hidden;display:flex;flex-direction:column;max-height:70vh}
.cmdk-in{display:flex;align-items:center;gap:12px;padding:15px 18px;border-bottom:1px solid var(--line)}
.cmdk-in svg{width:19px;height:19px;color:var(--muted);flex:none}
.cmdk-in input{flex:1;border:none;background:none;font-size:16px;color:var(--ink);outline:none;font-family:var(--font)}
.cmdk-in kbd{font:600 11px/1 var(--mono);background:var(--code-bg);border:1px solid var(--line);border-radius:6px;padding:4px 7px;color:var(--muted)}
.cmdk-results{overflow-y:auto;padding:8px}
.cmdk-hint{padding:26px 18px;text-align:center;color:var(--muted);font-size:13.5px}
.cmdk-item{display:block;padding:11px 13px;border-radius:10px;cursor:pointer;color:var(--ink)}
.cmdk-item.sel,.cmdk-item:hover{background:var(--brand-soft)}
.cmdk-item .r-top{display:flex;align-items:center;gap:8px;font-size:11px;color:var(--muted);margin-bottom:2px}
.cmdk-item .r-title{font-size:14.5px;font-weight:600}
.cmdk-item .r-ctx{font-size:12.5px;color:var(--muted);margin-top:2px;line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cmdk-item mark{background:color-mix(in srgb,var(--brand) 26%,transparent);color:inherit;border-radius:3px;padding:0 1px}
.cmdk-foot{display:flex;gap:16px;padding:10px 16px;border-top:1px solid var(--line);color:var(--muted);font-size:11.5px}
.cmdk-foot kbd{font-family:var(--mono);background:var(--code-bg);border:1px solid var(--line);border-radius:5px;padding:2px 5px}

/* ============================================================
   Dashboard
   ============================================================ */
.dash{max-width:1180px;margin:0 auto;padding:44px 40px 90px}
.hero{position:relative;padding:44px 40px;border-radius:var(--radius-lg);border:1px solid var(--line);overflow:hidden;
  background:radial-gradient(1200px 400px at 15% -20%,var(--brand-soft),transparent),
  radial-gradient(900px 400px at 110% 20%,color-mix(in srgb,var(--brand-2) 12%,transparent),transparent),var(--panel);
  box-shadow:var(--shadow)}
.hero .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:600;color:var(--brand);
  background:var(--brand-soft);border:1px solid color-mix(in srgb,var(--brand) 22%,transparent);
  padding:5px 12px;border-radius:999px;margin-bottom:16px}
.hero h1{font-size:40px;line-height:1.1;letter-spacing:-1px;margin:0 0 12px;font-weight:820;max-width:16ch}
.hero h1 .grad{background:linear-gradient(100deg,var(--brand),var(--brand-2));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{font-size:17px;color:var(--ink-2);max-width:60ch;margin:0 0 24px}
.hero .cta{display:flex;flex-wrap:wrap;gap:12px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:11px 18px;border-radius:11px;font-weight:600;font-size:14.5px;
  border:1px solid transparent;cursor:pointer;transition:.15s}
.btn svg{width:17px;height:17px}
.btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;box-shadow:var(--shadow-sm)}
.btn-primary:hover{filter:brightness(1.06);text-decoration:none;transform:translateY(-1px)}
.btn-ghost{background:var(--panel);border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);text-decoration:none}

.sec-title{font-size:14px;font-weight:700;letter-spacing:.02em;color:var(--ink);margin:40px 0 14px;display:flex;align-items:center;gap:9px}
.sec-title .st-ico{width:18px;height:18px;color:var(--brand)}
.sec-sub{color:var(--muted);font-size:13px;font-weight:500;margin-left:auto}

.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;margin-top:22px}
.stat{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:18px;box-shadow:var(--shadow-sm)}
.stat .v{font-size:26px;font-weight:800;letter-spacing:-.5px;background:linear-gradient(120deg,var(--brand),var(--brand-2));-webkit-background-clip:text;background-clip:text;color:transparent}
.stat .k{font-size:12.5px;color:var(--muted);margin-top:3px;font-weight:500}

.legend{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0 0}
.legend .lg{font-size:12.5px;background:var(--panel);border:1px solid var(--line);padding:5px 11px;border-radius:999px;display:inline-flex;gap:6px;align-items:center;color:var(--ink-2)}

.maturity{margin-top:22px;padding:18px 20px;border-radius:16px;border:1px solid color-mix(in srgb,var(--ok) 28%,transparent);
  background:var(--ok-bg);display:flex;gap:14px;align-items:flex-start}
.maturity .mi{width:22px;height:22px;color:var(--ok);flex:none;margin-top:1px}
.maturity b{color:var(--ink)}
.maturity .sub{color:var(--ink-2);font-size:14px;margin-top:2px}

/* Product Status Dashboard */
.badge{display:inline-flex;align-items:center;gap:5px;font-size:12px;font-weight:700;padding:4px 10px;border-radius:999px;white-space:nowrap;line-height:1.4}
.b-ready{background:var(--ok-bg);color:var(--ok);border:1px solid color-mix(in srgb,var(--ok) 34%,transparent)}
.b-impl{background:var(--warn-bg);color:var(--warn);border:1px solid color-mix(in srgb,var(--warn) 34%,transparent)}
.b-dep{background:rgba(120,120,120,.14);color:var(--muted);border:1px solid var(--line)}
.mod-note{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--ink-2);background:var(--info-bg);border:1px solid color-mix(in srgb,var(--info) 26%,transparent);border-radius:12px;padding:12px 14px;margin:4px 0 18px}
.mod-note svg{color:var(--info);flex:none;margin-top:1px}
.mod-group{margin-bottom:22px}
.mod-grp-h{display:flex;align-items:baseline;gap:10px;margin:6px 0 12px;flex-wrap:wrap}
.mod-grp-h b{font-size:15px}
.mod-grp-h span{font-size:12.5px;color:var(--muted)}
.mod-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:14px}
.mod{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:15px 16px;box-shadow:var(--shadow-sm);position:relative;border-left:3px solid var(--line)}
.mod.ready{border-left-color:var(--ok)}
.mod.impl{border-left-color:var(--warn)}
.mod.dep{border-left-color:var(--muted)}
.mod-top{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:8px}
.mod-phase{font-size:11px;color:var(--muted);font-weight:600;text-align:right}
.mod-name{display:block;font-size:15px;letter-spacing:-.2px;margin-bottom:4px}
.mod-val{margin:0 0 8px;font-size:13px;color:var(--ink-2);line-height:1.5}
.mod-ev{font-size:11.5px;color:var(--muted);line-height:1.5;border-top:1px dashed var(--line);padding-top:8px}
.mod-ev span{font-weight:700;color:var(--ink-2)}
@media (max-width:480px){.mod-grid{grid-template-columns:1fr}}

.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(268px,1fr));gap:16px;margin-top:16px}
.card{display:flex;flex-direction:column;gap:8px;background:var(--panel);border:1px solid var(--line);border-radius:16px;
  padding:20px;box-shadow:var(--shadow-sm);color:var(--ink);transition:.16s;position:relative;overflow:hidden}
.card:hover{transform:translateY(-3px);border-color:var(--brand);text-decoration:none;box-shadow:var(--shadow)}
.card .c-ico{width:38px;height:38px;border-radius:11px;background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;margin-bottom:2px}
.card .c-ico svg{width:20px;height:20px}
.card .c-num{position:absolute;top:16px;right:18px;font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums;font-weight:600}
.card b{font-size:15.5px;letter-spacing:-.2px}
.card p{margin:0;font-size:13px;color:var(--muted);line-height:1.5;flex:1}
.card .c-foot{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--muted);margin-top:6px}
.card .c-foot .rd{color:var(--ok)}

/* Learning path timeline */
.path{margin-top:16px;position:relative}
.path .step{display:flex;gap:16px;padding:2px 0 20px;position:relative}
.path .step:not(:last-child)::before{content:"";position:absolute;left:16px;top:34px;bottom:-2px;width:2px;background:var(--line)}
.path .step .dot{width:34px;height:34px;border-radius:10px;flex:none;display:grid;place-items:center;font-weight:700;font-size:13px;
  background:var(--brand-soft);color:var(--brand);border:1px solid color-mix(in srgb,var(--brand) 25%,transparent);z-index:1}
.path .step .b{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:12px 16px;flex:1;box-shadow:var(--shadow-sm);transition:.15s}
.path .step .b:hover{border-color:var(--brand)}
.path .step .b a{font-weight:650;font-size:14.5px}
.path .step .b p{margin:2px 0 0;font-size:13px;color:var(--muted)}

.quick{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px;margin-top:14px}
.qlink{display:flex;align-items:center;gap:11px;padding:13px 15px;border:1px solid var(--line);border-radius:12px;background:var(--panel);color:var(--ink);box-shadow:var(--shadow-sm);transition:.15s}
.qlink:hover{border-color:var(--brand);text-decoration:none;transform:translateY(-2px)}
.qlink .qi{width:32px;height:32px;border-radius:9px;background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;flex:none}
.qlink .qi svg{width:17px;height:17px}
.qlink small{display:block;color:var(--muted);font-size:11.5px}
.qlink b{font-size:13.5px}

.tracker{margin-top:16px;padding:20px;border:1px solid var(--line);border-radius:16px;background:var(--panel);box-shadow:var(--shadow-sm)}
.tracker .bar{height:10px;border-radius:999px;background:var(--code-bg);overflow:hidden;margin:12px 0 8px}
.tracker .bar i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--brand),var(--brand-2));transition:width .4s}
.tracker .tk-top{display:flex;justify-content:space-between;align-items:center}
.tracker .tk-top b{font-size:14px}.tracker .tk-top span{color:var(--muted);font-size:13px}
.tracker .reset{font-size:12px;color:var(--muted);background:none;border:none;cursor:pointer;text-decoration:underline;padding:0}

.foot{border-top:1px solid var(--line);margin-top:60px;padding:28px 0 0;color:var(--muted);font-size:13px;display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between}
.foot a{color:var(--muted)}.foot a:hover{color:var(--brand)}

/* ---------- 404 ---------- */
.err{min-height:70vh;display:grid;place-items:center;text-align:center;padding:40px}
.err .code{font-size:78px;font-weight:850;letter-spacing:-2px;background:linear-gradient(120deg,var(--brand),var(--brand-2));-webkit-background-clip:text;background-clip:text;color:transparent}

/* ---------- Responsive ---------- */
@media (max-width:1180px){
  .doc-shell{grid-template-columns:var(--sidebar-w) minmax(0,1fr)}
  .toc{display:none}
}
@media (max-width:860px){
  :root{--sidebar-w:280px}
  .shell,.doc-shell{grid-template-columns:1fr}
  .menu-btn{display:grid}
  .side{position:fixed;left:0;top:var(--header-h);z-index:110;width:var(--sidebar-w);transform:translateX(-102%);
    transition:transform .22s ease;box-shadow:var(--shadow-lg)}
  .side.open{transform:none}
  .scrim{position:fixed;inset:0;top:var(--header-h);background:rgba(8,15,22,.45);z-index:105;display:none}
  .scrim.open{display:block}
  .wrap{padding:26px 20px 80px}
  .dash{padding:26px 18px 70px}
  .hero{padding:30px 22px}
  .hero h1{font-size:30px}
  .search-open{min-width:44px;padding:0;justify-content:center}
  .search-open span,.search-open kbd{display:none}
  article h1{font-size:26px}
}
@media (max-width:480px){
  .cards,.quick{grid-template-columns:1fr}
  .pager{grid-template-columns:1fr}
}
@media print{
  .hdr,.side,.toc,.pager,.totop,.progress,.cmdk-scrim,.scrim,.menu-btn{display:none!important}
  .shell,.doc-shell{display:block}.wrap{max-width:none;padding:0}
  a[target="_blank"]::after{content:""}
}