/* ============================================================================
   CVN Computers — System Documentation
   Layout + components for docs.html. Reuses design tokens from styles.css.
   ========================================================================== */

body[data-page="docs"]{background:var(--bg-2);min-height:100vh}

/* ---- top bar ------------------------------------------------------------ */
.docbar{position:sticky;top:0;z-index:50;display:flex;align-items:center;gap:1rem;
  height:64px;padding:0 clamp(16px,3vw,28px);background:var(--glass);
  backdrop-filter:blur(14px) saturate(1.3);-webkit-backdrop-filter:blur(14px) saturate(1.3);
  border-bottom:1px solid var(--glass-line)}
.docbar__brand{display:flex;align-items:center;gap:.7rem;min-width:0}
.docbar__brand .mark{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;flex:none;
  background:#fff;box-shadow:var(--shadow-brand);padding:4px;overflow:hidden}
.docbar__brand .mark img{width:100%;height:100%;object-fit:contain}
.docbar__brand b{font-family:var(--font-display);font-size:1.02rem;line-height:1.05;display:block}
.docbar__brand small{font-family:var(--font-mono);font-size:.6rem;letter-spacing:.16em;
  text-transform:uppercase;color:var(--ink-3)}
.docbar__spacer{flex:1}
.docbar__act{display:flex;align-items:center;gap:.5rem}
.doc-iconbtn{width:40px;height:40px;border-radius:11px;display:grid;place-items:center;
  background:var(--surface-2);border:1px solid var(--line);color:var(--ink-2);transition:.2s}
.doc-iconbtn:hover{color:var(--brand-ink);border-color:var(--brand)}
.doc-iconbtn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.doc-back{display:inline-flex;align-items:center;gap:.5rem;padding:.5rem .95rem;border-radius:var(--radius-pill);
  background:var(--surface-2);border:1px solid var(--line);color:var(--ink-2);font-weight:600;font-size:.86rem;transition:.2s}
.doc-back:hover{color:var(--brand-ink);border-color:var(--brand)}
.doc-back svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.docbar__menu{display:none}

/* ---- shell -------------------------------------------------------------- */
.docshell{display:grid;grid-template-columns:300px minmax(0,1fr);gap:0;
  max-width:1400px;margin-inline:auto;align-items:start}

/* ---- sidebar ------------------------------------------------------------ */
.docside{position:sticky;top:64px;height:calc(100vh - 64px);overflow-y:auto;
  padding:1.4rem 1rem 3rem;border-right:1px solid var(--line);scrollbar-width:thin}
.docside::-webkit-scrollbar{width:8px}
.docside::-webkit-scrollbar-thumb{background:var(--line-2);border-radius:8px}

/* search */
.docsearch{position:relative;margin-bottom:1.3rem}
.docsearch svg{position:absolute;left:.85rem;top:50%;transform:translateY(-50%);width:16px;height:16px;
  fill:none;stroke:var(--ink-3);stroke-width:2;stroke-linecap:round;stroke-linejoin:round;pointer-events:none}
.docsearch input{width:100%;padding:.7rem .8rem .7rem 2.4rem;border-radius:var(--radius-sm);
  background:var(--surface);border:1.5px solid var(--line);color:var(--ink);font-size:.9rem;transition:.2s}
.docsearch input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px oklch(0.63 0.12 var(--brand-h)/.13)}
.docsearch kbd{position:absolute;right:.7rem;top:50%;transform:translateY(-50%);
  font-family:var(--font-mono);font-size:.66rem;color:var(--ink-3);background:var(--surface-2);
  border:1px solid var(--line);border-radius:6px;padding:.1rem .4rem;pointer-events:none}
.docsearch input:focus~kbd,.docsearch.filled kbd{opacity:0}

/* hotkey hint row (shown when the search is focused) */
.docsearch__hints{display:none;gap:.75rem;margin-top:.55rem;padding:.1rem .15rem;
  font-size:.7rem;color:var(--ink-3);align-items:center;flex-wrap:wrap;
  animation:docHintIn .25s var(--ease-out)}
.docsearch__hints.show{display:flex}
.docsearch__hints span{display:inline-flex;align-items:center;gap:.28rem}
.docsearch__hints kbd{font-family:var(--font-mono);font-size:.62rem;background:var(--surface-2);
  border:1px solid var(--line);border-bottom-width:2px;border-radius:5px;padding:.05rem .32rem;color:var(--ink-2)}
@keyframes docHintIn{from{opacity:0;transform:translateY(-3px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){.docsearch__hints{animation:none}}

/* search results dropdown */
.docresults{display:none;flex-direction:column;gap:2px;margin-top:.5rem;padding:.4rem;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);box-shadow:var(--shadow)}
.docresults.show{display:flex}
.docresult{display:flex;flex-direction:column;gap:.1rem;padding:.55rem .7rem;border-radius:9px;
  cursor:pointer;transition:background .15s;text-align:left}
.docresult:hover,.docresult.active{background:var(--brand-soft)}
.docresult b{font-size:.86rem;color:var(--ink);font-weight:600}
.docresult span{font-size:.74rem;color:var(--ink-3)}
.docresult .doc-hit{color:var(--brand-ink);font-weight:700}
.docresult__cat{font-family:var(--font-mono);font-size:.62rem;letter-spacing:.1em;text-transform:uppercase;color:var(--brand-ink)}
.docresults__empty{padding:.9rem .7rem;font-size:.84rem;color:var(--ink-3);text-align:center}

/* nav groups */
.docnav{display:flex;flex-direction:column;gap:.25rem}
.docnav__cat{margin-top:.5rem}
.docnav__head{display:flex;align-items:center;gap:.6rem;width:100%;padding:.6rem .7rem;border-radius:10px;
  color:var(--ink-2);font-weight:700;font-size:.82rem;text-align:left;transition:.18s}
.docnav__head:hover{background:var(--surface-2);color:var(--ink)}
.docnav__head svg{width:17px;height:17px;flex:none;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;color:var(--brand-ink)}
.docnav__head .docnav__label{flex:1;letter-spacing:.01em}
.docnav__chev{width:15px !important;height:15px !important;transition:transform .25s var(--ease);color:var(--ink-3) !important}
.docnav__cat.open .docnav__chev{transform:rotate(180deg)}
.docnav__items{display:grid;grid-template-rows:0fr;transition:grid-template-rows .28s var(--ease);overflow:hidden}
.docnav__cat.open .docnav__items{grid-template-rows:1fr}
.docnav__items>div{min-height:0;overflow:hidden;padding-left:.5rem}
.docnav__link{display:block;padding:.4rem .7rem .4rem 1.55rem;border-radius:8px;position:relative;
  color:var(--ink-3);font-size:.83rem;font-weight:500;line-height:1.35;transition:.16s;cursor:pointer}
.docnav__link::before{content:"";position:absolute;left:.6rem;top:50%;transform:translateY(-50%);
  width:5px;height:5px;border-radius:50%;background:var(--line-2);transition:.18s}
.docnav__link:hover{color:var(--ink);background:var(--surface-2)}
.docnav__link.active{color:var(--brand-ink);font-weight:700;background:var(--brand-soft)}
.docnav__link.active::before{background:var(--brand);box-shadow:0 0 0 3px oklch(0.63 0.12 var(--brand-h)/.2)}

/* ---- main content ------------------------------------------------------- */
.docmain{padding:clamp(1.4rem,3vw,3rem) clamp(1.1rem,4vw,4rem) 6rem;min-width:0}
.dochero{max-width:760px;margin-bottom:2.4rem}
.dochero .eyebrow{margin-bottom:1rem}
.dochero h1{font-size:clamp(2rem,4.5vw,3rem);letter-spacing:-.03em;margin-bottom:.7rem}
.dochero p{color:var(--ink-2);font-size:1.05rem;max-width:60ch}

/* quick category jump chips on hero */
.docjump{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:1.5rem}
.docjump a{display:inline-flex;align-items:center;gap:.45rem;padding:.5rem .9rem;border-radius:var(--radius-pill);
  background:var(--surface);border:1px solid var(--line);color:var(--ink-2);font-size:.82rem;font-weight:600;transition:.2s}
.docjump a:hover{color:var(--brand-ink);border-color:var(--brand);transform:translateY(-1px);box-shadow:var(--shadow-sm)}
.docjump a svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;color:var(--brand-ink)}

/* category section header */
.doccat{scroll-margin-top:84px;margin-top:3.2rem}
.doccat:first-of-type{margin-top:0}
.doccat__head{display:flex;align-items:center;gap:.9rem;padding-bottom:1rem;margin-bottom:1.6rem;
  border-bottom:1px solid var(--line)}
.doccat__ic{width:44px;height:44px;border-radius:13px;flex:none;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand-ink)}
.doccat__ic svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.doccat__t h2{font-size:1.5rem;letter-spacing:-.02em}
.doccat__t p{color:var(--ink-3);font-size:.9rem;margin-top:.15rem}

/* article card */
.docart{scroll-margin-top:84px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:clamp(1.3rem,2.5vw,2rem);margin-bottom:1.3rem;
  box-shadow:var(--shadow-sm);opacity:0;transform:translateY(18px);transition:opacity .55s var(--ease-out),transform .55s var(--ease-out)}
.docart.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.docart{opacity:1;transform:none;transition:none}}
.docart__head{margin-bottom:1.1rem}
.docart__head h3{font-size:1.28rem;letter-spacing:-.015em;scroll-margin-top:84px}
.docart__blurb{color:var(--ink-3);font-size:.92rem;margin-top:.25rem}
.docart.dim{opacity:.22;filter:saturate(.5)}

/* article body typography */
.docbody{color:var(--ink-2);font-size:.96rem;line-height:1.72}
.docbody>*+*{margin-top:1rem}
.docbody .doc-lead{font-size:1.04rem;color:var(--ink);line-height:1.65}
.docbody h3{font-family:var(--font-display);color:var(--ink);font-size:1.05rem;font-weight:600;
  margin-top:1.8rem;letter-spacing:-.01em}
.docbody h3:first-child{margin-top:0}
.docbody b{color:var(--ink);font-weight:700}
.docbody code{font-family:var(--font-mono);font-size:.82em;background:var(--surface-2);
  border:1px solid var(--line);border-radius:6px;padding:.1em .4em;color:var(--brand-ink)}
.docbody a{color:var(--brand-ink);text-decoration:underline;text-underline-offset:2px;text-decoration-thickness:1px}
.docbody a:hover{color:var(--brand-strong)}
.docbody em{font-style:italic;color:var(--ink)}

/* lists */
.doc-list,.doc-steps{padding-left:0;display:flex;flex-direction:column;gap:.55rem}
.doc-list li{position:relative;padding-left:1.5rem}
.doc-list li::before{content:"";position:absolute;left:.25rem;top:.62em;width:6px;height:6px;border-radius:50%;background:var(--brand)}
.doc-steps{counter-reset:s}
.doc-steps li{position:relative;padding-left:2.4rem;counter-increment:s;min-height:1.7rem;display:flex;align-items:center}
.doc-steps li::before{content:counter(s);position:absolute;left:0;top:.05em;width:1.6rem;height:1.6rem;border-radius:50%;
  background:var(--brand);color:var(--on-brand);font-family:var(--font-mono);font-size:.78rem;font-weight:600;
  display:grid;place-items:center}

/* feature grid */
.doc-feats{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:.7rem;margin-top:1rem}
.doc-feat{background:var(--surface-2);border:1px solid var(--line);border-radius:12px;padding:.85rem 1rem}
.doc-feat b{display:block;color:var(--ink);font-size:.9rem;font-weight:700;margin-bottom:.15rem}
.doc-feat span{font-size:.82rem;color:var(--ink-3);line-height:1.5}

/* callouts */
.doc-cal{display:flex;gap:.85rem;align-items:flex-start;padding:.9rem 1.1rem;border-radius:12px;
  border:1px solid var(--line);background:var(--surface-2);margin-top:1.1rem}
.doc-cal p{margin:0;font-size:.9rem;color:var(--ink-2)}
.doc-cal__k{flex:none;font-family:var(--font-mono);font-size:.64rem;font-weight:600;letter-spacing:.08em;
  text-transform:uppercase;padding:.28rem .55rem;border-radius:7px;margin-top:.05rem}
.doc-cal--tip{border-color:oklch(0.7 0.13 var(--brand-h)/.4);background:var(--brand-soft)}
.doc-cal--tip .doc-cal__k{background:var(--brand);color:var(--on-brand)}
.doc-cal--tip p{color:var(--ink)}
.doc-cal--note .doc-cal__k{background:var(--surface-3);color:var(--ink-2)}
.doc-cal--warn{border-color:oklch(0.72 0.15 65/.5);background:oklch(0.78 0.15 65/.12)}
.doc-cal--warn .doc-cal__k{background:oklch(0.62 0.16 65);color:#fff}

/* tables */
.doc-tablewrap{overflow-x:auto;margin-top:1rem;border:1px solid var(--line);border-radius:12px}
.doc-table{width:100%;border-collapse:collapse;font-size:.88rem;min-width:420px}
.doc-table th{text-align:left;padding:.7rem .9rem;background:var(--surface-2);color:var(--ink-2);
  font-weight:700;font-size:.8rem;border-bottom:1px solid var(--line)}
.doc-table td{padding:.7rem .9rem;border-bottom:1px solid var(--line);vertical-align:top;color:var(--ink-2)}
.doc-table tr:last-child td{border-bottom:none}
.doc-table code{white-space:nowrap}
.doc-kbd{font-family:var(--font-mono);font-size:.76rem;background:var(--surface-2);border:1px solid var(--line-2);
  border-bottom-width:2px;border-radius:6px;padding:.15em .5em;color:var(--ink);white-space:nowrap}

/* screenshots */
.doc-shot{margin-top:1.2rem;border:1px solid var(--line);border-radius:14px;overflow:hidden;background:var(--surface-2)}
.doc-shot img{width:100%;display:block}
.doc-shot figcaption{padding:.65rem .95rem;font-size:.8rem;color:var(--ink-3);border-top:1px solid var(--line);
  font-family:var(--font-mono);letter-spacing:.01em}

/* FAQ accordion */
.doc-faq{display:flex;flex-direction:column;gap:.6rem;margin-top:.4rem}
.doc-faq details{border:1px solid var(--line);border-radius:12px;background:var(--surface-2);overflow:hidden;transition:.2s}
.doc-faq details[open]{border-color:var(--brand);box-shadow:var(--shadow-sm)}
.doc-faq summary{list-style:none;cursor:pointer;padding:.9rem 1.1rem;font-weight:600;color:var(--ink);
  font-size:.92rem;display:flex;align-items:center;gap:.7rem}
.doc-faq summary::-webkit-details-marker{display:none}
.doc-faq summary::before{content:"";width:9px;height:9px;border-right:2px solid var(--brand-ink);
  border-bottom:2px solid var(--brand-ink);transform:rotate(-45deg);transition:transform .2s;flex:none;margin-left:.1rem}
.doc-faq details[open] summary::before{transform:rotate(45deg)}
.doc-faq p{padding:0 1.1rem 1rem 2.5rem;margin:0;color:var(--ink-2);font-size:.9rem}

/* changelog */
.doc-log{display:flex;flex-direction:column;gap:0;margin-top:.6rem}
.doc-log__item{display:grid;grid-template-columns:150px 1fr;gap:1.2rem;padding:1.1rem 0;border-bottom:1px solid var(--line)}
.doc-log__item:last-child{border-bottom:none}
.doc-log__meta{display:flex;flex-direction:column;gap:.2rem}
.doc-log__ver{font-family:var(--font-display);font-weight:600;color:var(--brand-ink);font-size:.95rem}
.doc-log__date{font-family:var(--font-mono);font-size:.72rem;color:var(--ink-3)}
.doc-log__body b{display:block;color:var(--ink);font-size:.98rem;margin-bottom:.25rem}
.doc-log__body p{margin:0;color:var(--ink-2);font-size:.9rem}

/* reveal for category heads */
.doccat__head{opacity:0;transform:translateY(14px);transition:opacity .5s var(--ease-out),transform .5s var(--ease-out)}
.doccat__head.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.doccat__head{opacity:1;transform:none}}

/* empty state when search finds nothing on the page */
.docempty{display:none;text-align:center;padding:4rem 1rem;color:var(--ink-3)}
.docempty.show{display:block}
.docempty svg{width:46px;height:46px;margin:0 auto 1rem;fill:none;stroke:var(--line-2);stroke-width:1.5}
.docempty b{display:block;color:var(--ink);font-size:1.1rem;margin-bottom:.3rem}

/* scrim for mobile sidebar */
.docscrim{display:none}

/* ---- print / save as PDF ------------------------------------------------ */
@media print{
  .docbar,.docside,.docscrim,.docjump,.docsearch,.docresults{display:none !important}
  body[data-page="docs"]{background:#fff}
  html[data-theme="dark"]{--bg:#fff;--bg-2:#fff;--surface:#fff;--surface-2:#fff;--surface-3:#f4f4f5;
    --ink:#111;--ink-2:#333;--ink-3:#555;--line:#ddd;--line-2:#ccc;--on-brand:#fff}
  .docshell{display:block;max-width:none}
  .docmain{padding:0}
  .dochero{margin-bottom:1.2rem}
  .dochero h1{font-size:2rem}
  .doccat,.doccat:first-of-type{margin-top:1.4rem;break-before:auto}
  .doccat__head,.docart{opacity:1 !important;transform:none !important;box-shadow:none !important}
  .docart{border:1px solid #e5e5e5;break-inside:avoid;page-break-inside:avoid;margin-bottom:.9rem;
    padding:1rem 1.2rem}
  .docart.dim{opacity:1 !important;filter:none !important}
  .doccat__head{break-after:avoid}
  .docart__head h3,.doccat__t h2,.docbody h3{break-after:avoid}
  .doc-shot,.doc-tablewrap,.doc-feats,.doc-cal,.doc-log__item,.doc-faq details{break-inside:avoid}
  .doc-shot img{max-height:340px;object-fit:contain}
  .doc-faq details{border-color:#e5e5e5}
  .doc-faq p{padding-left:1.1rem}
  a{color:inherit !important;text-decoration:none !important}
  .doc-cal--warn{background:#fff7ed}
  .doc-cal--tip,.doc-cal--note{background:#f6f6f7}
  @page{margin:14mm 12mm}
}
@media (max-width:900px){
  .docshell{grid-template-columns:1fr}
  .docbar__menu{display:grid}
  .docside{position:fixed;top:0;left:0;height:100vh;width:min(320px,86vw);z-index:80;
    background:var(--surface);border-right:1px solid var(--line);box-shadow:var(--shadow-lg);
    transform:translateX(-100%);transition:transform .3s var(--ease);padding-top:1.2rem}
  .docside.open{transform:none}
  .docscrim{display:block;position:fixed;inset:0;z-index:70;background:rgba(0,0,0,.45);
    opacity:0;pointer-events:none;transition:opacity .3s}
  .docscrim.show{opacity:1;pointer-events:auto}
  .doc-back span{display:none}
  .doc-log__item{grid-template-columns:1fr;gap:.4rem}
}