/* CheckAssets site — shared design system.
   Extracted from the original single-file manual so all pages (home, manual,
   changelog, privacy, support) share one look. Page-specific layout (the
   manual's sidebar/TOC, for example) stays inline in that page. */

:root{
  --ink:#1C2430;
  --paper:#F5F6F3;
  --surface:#FFFFFF;
  --surface-2:#EDEFEC;
  --text:#232B33;
  --muted:#5B6670;
  --line:#DBE1DF;
  --accent:#2F6F62;
  --accent-strong:#20514A;
  --accent-soft:#E3EFEC;
  --warm:#C98A2B;
  --warm-soft:#F7ECD9;
  --danger:#B4432F;
  --danger-soft:#F6E4DE;
  --radius:10px;
  --nav-h:56px;
  --serif:'Noto Serif TC','PMingLiU','DFKai-SB',serif;
  --sans:'Noto Sans TC','PingFang TC','Microsoft JhengHei',sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --shadow:0 1px 2px rgba(28,36,48,.04),0 8px 24px rgba(28,36,48,.06);
}
:root[data-theme="dark"]{
  --ink:#E7EAEC;
  --paper:#11161B;
  --surface:#171F26;
  --surface-2:#1D262E;
  --text:#E7EAEC;
  --muted:#93A2AA;
  --line:#2A343C;
  --accent:#4FA08E;
  --accent-strong:#6BB8A6;
  --accent-soft:#172924;
  --warm:#D9A24B;
  --warm-soft:#2B2213;
  --danger:#D97A61;
  --danger-soft:#2E1F1A;
  --shadow:0 1px 2px rgba(0,0,0,.3),0 12px 28px rgba(0,0,0,.35);
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]):not([data-theme="dark"]){
    --ink:#E7EAEC; --paper:#11161B; --surface:#171F26; --surface-2:#1D262E;
    --text:#E7EAEC; --muted:#93A2AA; --line:#2A343C; --accent:#4FA08E;
    --accent-strong:#6BB8A6; --accent-soft:#172924; --warm:#D9A24B;
    --warm-soft:#2B2213; --danger:#D97A61; --danger-soft:#2E1F1A;
    --shadow:0 1px 2px rgba(0,0,0,.3),0 12px 28px rgba(0,0,0,.35);
  }
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;background:var(--paper);color:var(--text);
  font-family:var(--sans);line-height:1.75;font-size:16px;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-family:var(--serif);color:var(--ink);line-height:1.35;font-weight:700;}
a{color:var(--accent);}
.skip-link{position:absolute;left:-999px;top:0;background:var(--accent);color:#fff;
  padding:10px 16px;border-radius:0 0 8px 0;z-index:200;}
.skip-link:focus{left:0;}
*:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}

/* ---------- Site nav & footer (all pages) ---------- */
/* Single row at every width, so --nav-h stays a reliable constant that the
   manual page's sidebar/progress-bar/drawer offsets can depend on. Narrow
   screens shrink the brand and let nav-links scroll horizontally instead of
   wrapping to a second row. */
.nav-bar{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  flex-wrap:nowrap;padding:12px 24px;border-bottom:1px solid var(--line);
  background:var(--paper);position:sticky;top:0;z-index:100;height:var(--nav-h);
}
.nav-brand{display:flex;align-items:center;gap:10px;text-decoration:none;flex-shrink:0;}
.nav-brand .brand-mark{
  width:32px;height:32px;border-radius:8px;background:var(--accent);color:#fff;
  display:flex;align-items:center;justify-content:center;font-family:var(--serif);
  font-weight:700;font-size:13px;flex-shrink:0;
}
.nav-brand .brand-name{font-weight:700;color:var(--ink);font-size:15px;white-space:nowrap;}
.nav-links{
  display:flex;gap:2px;flex-wrap:nowrap;overflow-x:auto;min-width:0;
  scrollbar-width:none;-webkit-overflow-scrolling:touch;
}
.nav-links::-webkit-scrollbar{display:none;}
.nav-links a{
  padding:8px 12px;border-radius:7px;color:var(--muted);text-decoration:none;
  font-size:14px;font-weight:600;white-space:nowrap;flex-shrink:0;
}
.nav-links a:hover,.nav-links a.active{background:var(--surface-2);color:var(--text);}
.nav-utils{display:flex;align-items:center;gap:8px;flex-shrink:0;}
.nav-utils button{
  display:flex;align-items:center;justify-content:center;gap:6px;
  padding:8px 12px;border:1px solid var(--line);border-radius:8px;background:var(--surface);
  color:var(--muted);cursor:pointer;font-size:13px;font-family:var(--sans);font-weight:600;
}
.nav-utils button:hover{color:var(--text);border-color:var(--muted);}
.nav-utils button svg{width:15px;height:15px;flex-shrink:0;}
@media (max-width:600px){
  .nav-bar{padding:0 12px;gap:8px;}
  .nav-brand .brand-name{display:none;}
  .nav-links a{padding:8px 10px;font-size:13.5px;}
}

.site-footer{
  border-top:1px solid var(--line);padding:32px 24px 48px;margin-top:40px;
  color:var(--muted);font-size:13.5px;
}
.site-footer .footer-inner{max-width:960px;margin:0 auto;display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;align-items:center;}
.site-footer a{color:var(--muted);}
.site-footer a:hover{color:var(--accent);}
.site-footer .footer-links{display:flex;gap:16px;flex-wrap:wrap;}

/* ---------- Reusable content components ---------- */
.pill{
  font-size:12.5px;padding:4px 11px;border-radius:99px;border:1px solid var(--line);
  color:var(--muted);background:var(--surface);
}
code,.code{
  font-family:var(--mono);font-size:.92em;background:var(--surface-2);
  padding:1px 6px;border-radius:4px;color:var(--ink);
}
pre.code-block{
  font-family:var(--mono);font-size:13.5px;background:var(--ink);color:#EDEFEC;
  padding:16px 18px;border-radius:8px;overflow-x:auto;margin:0 0 16px;
}
:root[data-theme="dark"] pre.code-block{background:#0B0F13;}

.callout{
  display:flex;gap:12px;padding:14px 16px;border-radius:8px;margin:0 0 18px;
  border-left:3px solid var(--accent);background:var(--accent-soft);
}
.callout.warn{border-left-color:var(--warm);background:var(--warm-soft);}
.callout.danger{border-left-color:var(--danger);background:var(--danger-soft);}
.callout .icon{flex-shrink:0;font-size:16px;line-height:1.6;}
.callout p{margin:0;font-size:14.6px;}

.shot{
  border:1.5px dashed var(--line);border-radius:var(--radius);
  padding:30px 20px;text-align:center;margin:18px 0 24px;background:var(--surface);
}
.shot svg{width:26px;height:26px;color:var(--muted);margin-bottom:8px;}
.shot p{margin:0;font-size:13.5px;color:var(--muted);}
.shot p.label{font-weight:600;color:var(--text);margin-bottom:3px;}
.shot.filled{border-style:solid;padding:20px;}
.shot.filled img{
  max-width:280px;width:100%;height:auto;border-radius:14px;border:1px solid var(--line);
  box-shadow:var(--shadow);margin-bottom:12px;
}

.table-wrap{overflow-x:auto;margin:0 0 22px;border:1px solid var(--line);
  border-radius:var(--radius);}
table{width:100%;border-collapse:collapse;font-size:14.6px;background:var(--surface);}
th,td{padding:10px 14px;border-bottom:1px solid var(--line);text-align:left;
  vertical-align:top;}
th{background:var(--surface-2);color:var(--muted);font-weight:600;font-size:13.3px;}
tr:last-child td{border-bottom:none;}
td.center,th.center{text-align:center;}
.tick{color:var(--accent);font-weight:700;}
.dash{color:var(--muted);}

.badge{display:inline-block;font-size:11.5px;padding:2px 8px;border-radius:99px;
  font-weight:600;}
.badge.orange{background:var(--warm-soft);color:var(--warm);}
.badge.green{background:var(--accent-soft);color:var(--accent-strong);}
.badge.blue{background:#E1EAF6;color:#2D5FA3;}
:root[data-theme="dark"] .badge.blue{background:#1B2A3D;color:#7FA9E0;}

.faq-item{border-top:1px solid var(--line);padding:18px 0;}
.faq-item:first-child{border-top:none;padding-top:0;}
.faq-item .q{font-weight:700;color:var(--ink);margin:0 0 8px;display:flex;gap:8px;}
.faq-item .q .qmark{color:var(--accent);flex-shrink:0;}
.faq-item .a{margin:0;color:var(--text);}

.step-num-list{list-style:none;margin:0 0 14px;padding:0;counter-reset:step;}
.step-num-list > li{
  counter-increment:step;position:relative;padding-left:38px;margin-bottom:18px;
}
.step-num-list > li::before{
  content:counter(step);position:absolute;left:0;top:-1px;
  width:26px;height:26px;border-radius:50%;background:var(--accent);color:#fff;
  font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;
  font-family:var(--sans);
}

/* ---------- Marketing / home-page components ---------- */
.page{max-width:960px;margin:0 auto;padding:48px 5vw 100px;}
.page.narrow{max-width:760px;}

.hero{max-width:820px;margin:0 auto 56px;text-align:center;padding:32px 5vw 0;}
.hero .eyebrow{display:flex;gap:8px;margin-bottom:16px;flex-wrap:wrap;justify-content:center;}
.hero h1{font-size:clamp(30px,4.5vw,46px);margin:0 0 14px;}
.hero p.lede{font-size:17.5px;color:var(--muted);max-width:620px;margin:0 auto 30px;}
.cta-row{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-bottom:8px;}
.btn{
  display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border-radius:9px;
  font-weight:700;font-size:15px;text-decoration:none;border:1px solid transparent;
}
.btn-primary{background:var(--accent);color:#fff;}
.btn-primary:hover{background:var(--accent-strong);}
.btn-secondary{background:var(--surface);color:var(--text);border-color:var(--line);}
.btn-secondary:hover{border-color:var(--muted);}
.btn[aria-disabled="true"]{opacity:.55;pointer-events:none;}

.feature-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:0 0 56px;
}
@media (max-width:860px){.feature-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:600px){.feature-grid{grid-template-columns:1fr;}}
.feature-card{
  border:1px solid var(--line);border-radius:var(--radius);padding:20px;background:var(--surface);
}
.feature-card h3{font-size:16.5px;margin:0 0 8px;}
.feature-card p{margin:0;font-size:14px;color:var(--muted);}

.screenshot-row{
  display:flex;gap:16px;overflow-x:auto;padding:4px 4px 16px;margin:0 0 56px;
  scroll-snap-type:x proximity;
}
.screenshot-row figure{
  flex:0 0 auto;margin:0;scroll-snap-align:start;width:180px;text-align:center;
}
.screenshot-row img{
  width:100%;height:auto;border-radius:14px;border:1px solid var(--line);box-shadow:var(--shadow);
}
.screenshot-row figcaption{margin-top:8px;font-size:13px;color:var(--muted);}

.section-head{text-align:center;max-width:640px;margin:0 auto 28px;}
.section-head h2{font-size:26px;margin:0 0 8px;}
.section-head p{color:var(--muted);margin:0;font-size:15px;}

.page-head{text-align:center;max-width:640px;margin:0 auto 40px;}
.page-head h1{font-size:clamp(26px,4vw,34px);margin:0 0 10px;}
.page-head p{color:var(--muted);margin:0;font-size:15px;}
.page-head .updated{font-size:13px;color:var(--muted);margin-top:6px;}

/* ---------- Changelog ---------- */
.changelog-entry{border-top:1px solid var(--line);padding:26px 0;}
.changelog-entry:first-child{border-top:none;padding-top:0;}
.changelog-entry h2{font-size:19px;margin:0 0 12px;display:flex;align-items:baseline;gap:10px;flex-wrap:wrap;}
.changelog-entry h2 time{font-size:13px;color:var(--muted);font-weight:400;font-family:var(--sans);}
.changelog-entry ul{margin:0;padding-left:22px;}
.changelog-entry li{margin-bottom:8px;}

/* ---------- Privacy / long-form content pages ---------- */
.content-section{margin-bottom:34px;}
.content-section h2{font-size:19px;margin:0 0 10px;}
.content-section p{margin:0;color:var(--text);}

@media print{
  .nav-bar,.site-footer,.menu-toggle,.to-top,#progressBar{display:none !important;}
  a{color:var(--text);text-decoration:none;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *{transition:none !important;}
}