/* AltLeads design system pages — the frame (top bar + one left menu shared by every page) and the page parts.
   Uses only al-tokens.css values, so the pages follow light / dark like the app. */
.ds-top { position: sticky; top: 0; z-index: 40; display: flex; align-items: center; gap: 10px; height: 56px; padding: 0 20px; background: var(--color-page-bg); border-bottom: 1px solid var(--border-color); }
.ds-top .logo { font-size: 18px; }
.ds-top .ds-name { color: var(--color-gray-700); font-weight: 700; font-size: 14px; text-decoration: none; padding: 6px 8px; border-radius: var(--radius-xs); }
.ds-top .ds-name:hover { background: var(--color-surface-hover); color: var(--color-gray-900); text-decoration: none; }
.ds-top nav { display: flex; gap: 2px; align-items: center; }
.ds-wrap { display: grid; grid-template-columns: 252px minmax(0, 1fr); gap: 36px; padding: 0 32px 96px 0; max-width: 1640px; margin: 0 auto; }
.ds-menu { position: sticky; top: 56px; align-self: start; height: calc(100vh - 56px); overflow-y: auto; padding: 16px 8px 40px 12px; border-right: 1px solid var(--border-color); background: var(--color-gray-50); }
.ds-menu .side-grp { padding: 14px 10px 4px; }
.ds-menu .nav-it { height: 28px; font-size: 13.5px; }
.ds-menu .nav-it.on { background: var(--color-brand-light); color: var(--color-gray-900); }
.ds-menu details summary { list-style: none; cursor: pointer; }
.ds-menu details summary::-webkit-details-marker { display: none; }
.ds-menu details[open] > summary .chev { transform: rotate(90deg); }
.ds-menu .chev { transition: transform var(--dur) var(--ease); margin-left: auto; }
.ds-menu .sub { padding-left: 16px; }
.ds-main { min-width: 0; padding-top: 28px; }
.ds-sec { scroll-margin-top: 72px; }
.ds-sec + .ds-sec { margin-top: 72px; padding-top: 48px; border-top: 1px solid var(--border-color); }
.ds-h1 { margin: 0 0 6px; font: 700 var(--fs-3xl)/1.15 var(--font-display); letter-spacing: -0.01em; }
.ds-lead { margin: 0 0 24px; max-width: 72ch; color: var(--color-text-muted); font-size: 16px; }
.ds-group { margin: 40px 0 12px; font: 700 var(--fs-xl)/1.2 var(--font-display); scroll-margin-top: 72px; }
.ds-kicker { display: inline-flex; gap: 6px; align-items: center; margin-bottom: 8px; font-size: 12px; font-weight: 700; color: var(--color-link); }
code { font: 13px var(--font-mono); padding: 1px 5px; border-radius: 4px; background: var(--color-surface-alt); }

/* ---------- overview ---------- */
.hero h1 { margin: 0; font: 900 44px/1.08 var(--font-display); letter-spacing: -0.02em; max-width: 18ch; }
.hero p { margin: 14px 0 22px; max-width: 64ch; font-size: 17px; color: var(--color-gray-700); }
.facts { display: flex; gap: 32px; margin-top: 28px; flex-wrap: wrap; }
.facts b { display: block; font: 900 32px/1 var(--font-display); }
.facts span { font-size: 13px; color: var(--color-text-muted); }
h2.big { margin: 64px 0 6px; font: 700 26px/1.2 var(--font-display); scroll-margin-top: 72px; }
.lead { margin: 0 0 20px; color: var(--color-text-muted); max-width: 70ch; }
.thumbs { display: grid; grid-template-columns: repeat(auto-fill, minmax(268px, 1fr)); gap: 16px; }
.thumb { display: flex; flex-direction: column; border: 1px solid var(--border-color); border-radius: var(--radius-card); background: var(--color-surface); overflow: hidden; transition: box-shadow var(--dur) var(--ease); }
.thumb:hover { box-shadow: var(--shadow-md); }
.shot { position: relative; aspect-ratio: 1440 / 900; overflow: hidden; border-bottom: 1px solid var(--border-color); background: var(--color-page-bg); }
.shot iframe { position: absolute; left: 0; top: 0; width: 1440px; height: 900px; border: 0; transform-origin: 0 0; pointer-events: none; }
.thumb .meta { padding: 12px 14px; display: flex; flex-direction: column; gap: 4px; }
.thumb .meta b { font-size: 15px; }
.thumb .meta small { font-size: 13px; color: var(--color-text-muted); }
.thumb .links { display: flex; gap: 4px; padding: 0 8px 10px; }
.picks { width: 100%; }
.pk { display: grid; grid-template-columns: 36px minmax(0, 1.1fr) minmax(0, 1.4fr) 110px; gap: 12px; align-items: center; padding: 10px 16px; border-bottom: 1px solid var(--border-color); font-size: 14.5px; }
.pk:last-child { border-bottom: 0; }
.pk .n { color: var(--color-text-muted); font-size: 13px; }
.pk .from { font-size: 13px; color: var(--color-text-muted); text-align: right; }
.files { display: grid; grid-template-columns: repeat(auto-fill, minmax(270px, 1fr)); gap: 10px; }
.file { display: flex; gap: 12px; align-items: flex-start; padding: 14px; border: 1px solid var(--border-color); border-radius: var(--radius-card); background: var(--color-surface); color: var(--color-gray-900); text-decoration: none; transition: background-color var(--dur) var(--ease); }
.file:hover { background: var(--color-surface-hover); text-decoration: none; }
.file .ic { width: 20px; height: 20px; color: var(--color-brand); margin-top: 2px; }
.file b { display: block; font-size: 15px; } .file small { display: block; font-size: 13px; color: var(--color-text-muted); margin-top: 2px; }
.how { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.how .card { padding: 20px; }
.how h3 { margin: 0 0 8px; font-size: 17px; display: flex; gap: 10px; align-items: center; }
.how h3 .count { background: var(--color-brand-light); color: var(--color-brand-dark); }
.how p, .how li { margin: 0; color: var(--color-gray-700); font-size: 14.5px; line-height: 1.6; }
.how ol, .how ul { margin: 6px 0 0; padding-left: 20px; }

/* ---------- components ---------- */
.dc { margin-bottom: 20px; border: 1px solid var(--border-color); border-radius: var(--radius-card); background: var(--color-surface); scroll-margin-top: 72px; overflow: hidden; }
.dc-h { display: flex; align-items: center; gap: 8px; padding: 12px 16px; border-bottom: 1px solid var(--border-color); flex-wrap: wrap; }
.dc-h h3 { margin: 0; font-size: 17px; font-weight: 700; }
.dc-h .note { font-size: 13px; color: var(--color-text-muted); }
.dc-b { display: grid; grid-template-columns: 1fr 1fr; }
.dc-b.stack1 { grid-template-columns: 1fr; }
.spec-wrap { position: relative; min-width: 0; border-right: 1px solid var(--border-color); }
.dc-b.stack1 .spec-wrap { border-right: 0; border-bottom: 1px solid var(--border-color); }
.spec-wrap:last-child { border-right: 0; border-bottom: 0; }
.spec-tag { position: absolute; top: 10px; right: 12px; z-index: 2; display: flex; gap: 6px; align-items: center; }
.spec-tag .chip { height: 22px; }
.spec { padding: 36px 24px 24px; min-height: 100%; display: flex; flex-wrap: wrap; gap: 12px; align-items: flex-start; align-content: flex-start; }
.spec.col { flex-direction: column; flex-wrap: nowrap; }
.sw { display: flex; flex-direction: column; gap: 6px; width: 132px; }
.sw i { display: block; height: 56px; border-radius: var(--radius-sm); border: 1px solid var(--border-color); }
.sw b { font-size: 12px; } .sw span { font: 12px var(--font-mono); color: var(--color-text-muted); }
.icgrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(92px, 1fr)); gap: 6px; }
.icgrid button { display: flex; flex-direction: column; align-items: center; gap: 6px; padding: 12px 4px; border: 1px solid transparent; border-radius: var(--radius-sm); background: transparent; cursor: pointer; color: var(--color-gray-900); font-size: 12px; }
.icgrid button:hover { background: var(--color-surface-hover); border-color: var(--border-color); }
.icgrid .ic { width: 22px; height: 22px; }
.lbl-s { width: 100%; font-size: 12px; font-weight: 700; color: var(--color-text-muted); }
.skel { display: block; height: 12px; border-radius: 6px; background: linear-gradient(90deg, var(--color-surface-alt) 0%, var(--color-surface-hover) 50%, var(--color-surface-alt) 100%); background-size: 200% 100%; animation: skel 1.4s linear infinite; }
@keyframes skel { to { background-position: -200% 0; } }
.spin { width: 16px; height: 16px; border-radius: 50%; border: 2px solid currentColor; border-right-color: transparent; animation: spin .8s linear infinite; display: inline-block; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- guides: do & don't, rules, words ---------- */
.rules { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.rule { border: 1px solid var(--border-color); border-radius: var(--radius-card); background: var(--color-surface); overflow: hidden; display: flex; flex-direction: column; }
.rule-h { padding: 14px 16px 10px; }
.rule-h h3 { margin: 0 0 4px; font-size: 16px; }
.rule-h p { margin: 0; font-size: 14px; color: var(--color-gray-700); line-height: 1.55; }
.rule-ex { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--border-color); flex: 1; }
.rule-ex > div { padding: 12px 14px 14px; display: flex; flex-direction: column; gap: 10px; min-width: 0; }
.rule-ex > div + div { border-left: 1px solid var(--border-color); }
.verdict { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 800; }
.verdict.do { color: var(--color-success); } .verdict.dont { color: var(--color-danger); }
.verdict .ic { width: 14px; height: 14px; }
.rule-ex .box { flex: 1; display: flex; flex-wrap: wrap; gap: 8px; align-items: center; align-content: center; padding: 12px; border-radius: var(--radius-sm); background: var(--color-page-bg); min-height: 76px; }
.rule-laws { display: flex; gap: 6px; flex-wrap: wrap; padding: 10px 16px 12px; border-top: 1px solid var(--border-color); }
.law-chip { display: inline-flex; align-items: center; gap: 4px; height: 22px; padding: 0 8px; border-radius: var(--radius-badge); background: var(--color-brand-light); color: var(--color-brand-dark); font-size: 12px; font-weight: 700; text-decoration: none; }
.law-chip:hover { text-decoration: none; background: color-mix(in srgb, var(--color-brand) 22%, var(--color-surface)); }
.ux-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.ux-card { padding: 16px; border: 1px solid var(--border-color); border-radius: var(--radius-card); background: var(--color-surface); display: flex; flex-direction: column; gap: 8px; }
.ux-card .ic { width: 20px; height: 20px; color: var(--color-brand); }
.ux-card h3 { margin: 0; font-size: 15.5px; }
.ux-card p { margin: 0; font-size: 14px; color: var(--color-gray-700); line-height: 1.55; }
.ux-card .try { margin-top: auto; font-size: 13px; }
.say { width: 100%; border-collapse: separate; border-spacing: 0; background: var(--color-surface); border: 1px solid var(--border-color); border-radius: var(--radius-card); overflow: hidden; font-size: 14.5px; }
.say th { text-align: left; padding: 10px 14px; font-size: 13px; color: var(--color-text-muted); font-weight: 700; border-bottom: 1px solid var(--border-color); }
.say td { padding: 10px 14px; border-bottom: 1px solid var(--border-color); vertical-align: top; }
.say tr:last-child td { border-bottom: 0; }
.say td.y { color: var(--color-gray-900); font-weight: 700; } .say td.n { color: var(--color-text-muted); text-decoration: line-through; text-decoration-color: color-mix(in srgb, var(--color-danger) 60%, transparent); }

/* ---------- laws of UX scorecard (shared renderer, styled here) ---------- */
.lux-summary { display: flex; flex-direction: column; gap: 12px; margin-bottom: 18px; }
.lux-strip { display: flex; gap: 6px; flex-wrap: wrap; }
.lux-dot { width: 22px; height: 22px; border-radius: 6px; border: 0; cursor: pointer; padding: 0; }
.lux-good { background: var(--color-success); } .lux-part { background: var(--color-warning); } .lux-miss { background: var(--color-danger); } .lux-none { background: var(--color-gray-300); }
.lux-filters { display: flex; gap: 6px; flex-wrap: wrap; }
.lux-filter { display: inline-flex; align-items: center; gap: 6px; height: 30px; padding: 0 12px; border: 1px solid var(--border-input); border-radius: var(--radius-badge); background: var(--color-surface); color: var(--color-gray-900); font-size: 13.5px; font-weight: 700; cursor: pointer; }
.lux-filter[aria-pressed="true"] { background: var(--color-gray-900); color: var(--color-surface); border-color: var(--color-gray-900); }
.lux-key { width: 10px; height: 10px; border-radius: 3px; display: inline-block; }
.lux-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.lux-card { padding: 14px 16px; border: 1px solid var(--border-color); border-radius: var(--radius-card); background: var(--color-surface); display: flex; flex-direction: column; gap: 8px; scroll-margin-top: 80px; }
.lux-card[hidden] { display: none; }
.lux-head { display: flex; align-items: center; gap: 8px; }
.lux-num { font-size: 12px; color: var(--color-text-muted); font-weight: 700; width: 20px; }
.lux-name { font-weight: 800; color: var(--color-gray-900); }
.lux-verdict { margin-left: auto; font-size: 12px; font-weight: 800; padding: 2px 8px; border-radius: var(--radius-badge); }
.lux-verdict.lux-good { background: var(--tag-green-bg); color: var(--tag-green-fg); } .lux-verdict.lux-part { background: var(--tag-amber-bg); color: var(--tag-amber-fg); }
.lux-verdict.lux-miss { background: var(--tag-red-bg); color: var(--tag-red-fg); } .lux-verdict.lux-none { background: var(--tag-grey-bg); color: var(--tag-grey-fg); }
.lux-plain { margin: 0; font-size: 14px; color: var(--color-gray-700); }
.lux-row { display: grid; grid-template-columns: 110px minmax(0, 1fr); gap: 8px; font-size: 14px; line-height: 1.5; }
.lux-label { font-size: 12px; font-weight: 800; color: var(--color-text-muted); padding-top: 2px; }
.lux-src { color: var(--color-text-muted); font-size: 12.5px; }
.lux-flash { animation: luxf 1.2s var(--ease); }
@keyframes luxf { 0%, 40% { box-shadow: 0 0 0 3px var(--color-brand); } 100% { box-shadow: none; } }

/* ---------- states & motion, dark & contrast ---------- */
.demo-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.demo { padding: 16px; border: 1px solid var(--border-color); border-radius: var(--radius-card); background: var(--color-surface); display: flex; flex-direction: column; gap: 12px; }
.demo h3 { margin: 0; font-size: 16px; } .demo p { margin: 0; font-size: 14px; color: var(--color-gray-700); }
.demo .stage { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; padding: 14px; border-radius: var(--radius-sm); background: var(--color-page-bg); min-height: 70px; position: relative; }
.motion-row { display: grid; grid-template-columns: 200px 90px 120px minmax(0, 1fr); gap: 12px; align-items: center; padding: 10px 14px; border-bottom: 1px solid var(--border-color); font-size: 14px; }
.motion-row:last-child { border-bottom: 0; }
.motion-row .track { height: 8px; border-radius: 4px; background: var(--color-surface-alt); position: relative; overflow: hidden; }
.motion-row .track i { position: absolute; left: 0; top: 0; bottom: 0; width: 18px; border-radius: 4px; background: var(--color-brand); }
.motion-row.play .track i { animation: slide var(--d) var(--ease) forwards; }
@keyframes slide { to { left: calc(100% - 18px); } }
.ctr { width: 100%; border-collapse: separate; border-spacing: 0; font-size: 14px; background: var(--color-surface); border: 1px solid var(--border-color); border-radius: var(--radius-card); overflow: hidden; }
.ctr th { text-align: left; font-size: 13px; color: var(--color-text-muted); padding: 10px 12px; border-bottom: 1px solid var(--border-color); }
.ctr td { padding: 8px 12px; border-bottom: 1px solid var(--border-color); vertical-align: middle; }
.ctr tr:last-child td { border-bottom: 0; }
.ctr .smp { display: inline-flex; align-items: center; height: 30px; padding: 0 12px; border-radius: var(--radius-xs); font-weight: 700; font-size: 13.5px; box-shadow: inset 0 0 0 1px var(--border-color); }
.ctr .ratio { font-weight: 800; font-variant-numeric: tabular-nums; }
.ok { color: var(--color-success); font-weight: 800; } .bad { color: var(--color-danger); font-weight: 800; }
.pairs { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* ---------- try it, copy & use ---------- */
.play { border: 1px solid var(--border-color); border-radius: var(--radius-card); overflow: hidden; background: var(--color-surface); }
.play-bar { display: flex; gap: 10px; align-items: center; padding: 10px 12px; border-bottom: 1px solid var(--border-color); flex-wrap: wrap; }
.play-frame { position: relative; height: 760px; overflow: hidden; background: var(--color-page-bg); }
.play-frame iframe { position: absolute; left: 0; top: 0; border: 0; transform-origin: 0 0; }
.snip { position: relative; border: 1px solid var(--border-color); border-radius: var(--radius-card); background: var(--color-surface); overflow: hidden; margin-bottom: 14px; }
.snip-h { display: flex; align-items: center; gap: 8px; padding: 8px 10px 8px 14px; border-bottom: 1px solid var(--border-color); font-size: 13.5px; font-weight: 700; }
.snip pre { margin: 0; padding: 14px; overflow: auto; max-height: 360px; font: 12.5px/1.6 var(--font-mono); color: var(--color-gray-900); background: var(--color-page-bg); }
.src-row { display: grid; grid-template-columns: 34px minmax(0, 1fr) minmax(0, 1.3fr) 150px; gap: 12px; align-items: center; padding: 10px 16px; border-bottom: 1px solid var(--border-color); font-size: 14px; }
.src-row:last-child { border-bottom: 0; }

@media (max-width: 1100px) { .ux-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 960px) {
  .ds-wrap { grid-template-columns: minmax(0, 1fr); padding: 0 16px 64px; }
  .ds-menu { position: fixed; z-index: 60; left: 0; top: 56px; width: 280px; transform: translateX(-102%); transition: transform var(--dur-panel) var(--ease); box-shadow: var(--shadow-lg); }
  .ds-open .ds-menu { transform: none; }
  .ds-top nav .hide-s { display: none; }
  .dc-b, .rules, .rule-ex, .demo-grid, .pairs, .how, .lux-grid { grid-template-columns: minmax(0, 1fr); }
  .rule-ex > div + div { border-left: 0; border-top: 1px solid var(--border-color); }
  .spec-wrap { border-right: 0; border-bottom: 1px solid var(--border-color); }
  .hero h1 { font-size: 34px; }
  .pk, .src-row { grid-template-columns: 28px minmax(0, 1fr); }
  .motion-row { grid-template-columns: 1fr 70px; }
}
@media (min-width: 961px) { .ds-burger { display: none; } }
@media (max-width: 600px) { .ux-grid { grid-template-columns: minmax(0, 1fr); } }