@font-face{font-family:"Inter";font-style:normal;font-weight:400;font-display:swap;src:url("fonts/inter-400.woff2") format("woff2")}@font-face{font-family:"Inter";font-style:normal;font-weight:500;font-display:swap;src:url("fonts/inter-500.woff2") format("woff2")}@font-face{font-family:"Inter";font-style:normal;font-weight:600;font-display:swap;src:url("fonts/inter-600.woff2") format("woff2")}@font-face{font-family:"Inter";font-style:normal;font-weight:700;font-display:swap;src:url("fonts/inter-700.woff2") format("woff2")}
:root{
  --bg:#fafafa;--panel:#ffffff;--panel-line:#e7e7e7;
  --ink:#18181b;--body:#3f3f46;--ink-2:#52525b;--ink-3:#71717a;
  --line:#e4e4e7;--line-2:#f4f4f5;--hover:#f4f4f5;--active:#f0f0f1;
  --docs:#3c6b1d;--link-ul:rgba(24,24,27,.32);--mark:#fef08a;
  --code-bg:#fafafa;--shadow:0 20px 50px -16px rgba(0,0,0,.16),0 2px 6px rgba(0,0,0,.05);
  --note:#2563eb;--note-bg:#f5f9ff;--note-line:#dbe7fb;
  --tip:#16a34a;--tip-bg:#f4fbf6;--tip-line:#d7f0de;
  --warn:#b45309;--warn-bg:#fffbeb;--warn-line:#fbe8b6;
  --solid:#18181b;--solid-ink:#ffffff;
  --font:"Inter",ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --top:56px;--side:260px;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#000000;--panel:#0a0a0a;--panel-line:#1f1f1f;
  --ink:#fafafa;--body:#d4d4d4;--ink-2:#a3a3a3;--ink-3:#737373;
  --line:#262626;--line-2:#171717;--hover:#161616;--active:#1c1c1c;
  --docs:#fafafa;--link-ul:rgba(250,250,250,.42);--mark:rgba(250,204,21,.24);
  --code-bg:#0f0f0f;--shadow:0 24px 60px -18px rgba(0,0,0,.85),0 2px 10px rgba(0,0,0,.5);
  --note:#60a5fa;--note-bg:#0c1320;--note-line:#1c2c47;
  --tip:#4ade80;--tip-bg:#0a160e;--tip-line:#173a22;
  --warn:#fbbf24;--warn-bg:#171206;--warn-line:#3a2c0b;
  --solid:#262626;--solid-ink:#fafafa;
  color-scheme:dark;
}}
:root[data-theme="dark"]{
  --bg:#000000;--panel:#0a0a0a;--panel-line:#1f1f1f;
  --ink:#fafafa;--body:#d4d4d4;--ink-2:#a3a3a3;--ink-3:#737373;
  --line:#262626;--line-2:#171717;--hover:#161616;--active:#1c1c1c;
  --docs:#fafafa;--link-ul:rgba(250,250,250,.42);--mark:rgba(250,204,21,.24);
  --code-bg:#0f0f0f;--shadow:0 24px 60px -18px rgba(0,0,0,.85),0 2px 10px rgba(0,0,0,.5);
  --note:#60a5fa;--note-bg:#0c1320;--note-line:#1c2c47;
  --tip:#4ade80;--tip-bg:#0a160e;--tip-line:#173a22;
  --warn:#fbbf24;--warn-bg:#171206;--warn-line:#3a2c0b;
  --solid:#262626;--solid-ink:#fafafa;
  color-scheme:dark;
}
*{box-sizing:border-box}
html{scroll-padding-top:calc(var(--top) + 24px);-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font);font-size:14.5px;line-height:1.65;color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer}
svg{flex:none}
:focus-visible{outline:2px solid var(--ink-3);outline-offset:2px;border-radius:6px}
.skip{position:absolute;left:-9999px}.skip:focus{left:12px;top:10px;z-index:200;background:var(--panel);padding:8px 14px;border:1px solid var(--line);border-radius:8px}
.ic{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
kbd{font-family:var(--font);font-size:11px;font-weight:500;color:var(--ink-3)}

/* ─── top bar ─── */
.top{position:sticky;top:0;z-index:50;height:var(--top);background:var(--bg);display:grid;grid-template-columns:var(--side) minmax(0,1fr) auto;align-items:center;padding:0 22px 0 0}
.brand{display:flex;align-items:center;gap:10px;padding-left:28px;min-width:0}
.brand img{height:20px;width:auto;display:block}
.brand .docs{font-size:16px;font-weight:600;letter-spacing:-.02em;color:var(--docs);line-height:1}
.menu-btn{display:none;width:40px;height:40px;border:0;background:none;border-radius:10px;align-items:center;justify-content:center;margin-left:8px}
.menu-btn:hover{background:var(--hover)}
.tabs{display:flex;align-items:stretch;gap:4px;height:100%;padding-left:24px;overflow-x:auto;scrollbar-width:none}
.tabs::-webkit-scrollbar{display:none}
.tab{position:relative;display:flex;align-items:center;gap:7px;padding:0 11px;font-size:13.5px;font-weight:500;color:var(--ink-2);white-space:nowrap}
.tab:hover{color:var(--ink)}
.tab[aria-current="page"]{color:var(--ink);font-weight:600}

.top-r{display:flex;align-items:center;gap:8px}
.tbtn{display:inline-flex;align-items:center;gap:7px;height:32px;padding:0 11px;border:1px solid var(--line);border-radius:8px;background:var(--panel);font-size:13.5px;font-weight:500;color:var(--ink);white-space:nowrap}
.tbtn:hover{background:var(--hover)}
.tbtn.solid{background:var(--solid);color:var(--solid-ink);border-color:var(--solid);font-weight:600}
.tbtn.solid:hover{opacity:.9;background:var(--solid)}

/* ─── frame ─── */
.frame{display:grid;grid-template-columns:var(--side) minmax(0,1fr);align-items:start}
.side{position:sticky;top:var(--top);height:calc(100vh - var(--top));display:flex;flex-direction:column;padding:10px 14px 14px 18px}
.side-search{display:flex;gap:7px;margin:0 4px 16px 8px}
.search-trigger{flex:1;display:flex;align-items:center;gap:10px;height:36px;padding:0 10px;border:1px solid var(--line);border-radius:10px;background:var(--panel);color:var(--ink-3);font-size:13.5px;text-align:left;min-width:0}
.search-trigger:hover{border-color:var(--panel-line);color:var(--ink-2)}
.search-trigger span{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ask-trigger{width:36px;height:36px;border:1px solid var(--line);border-radius:10px;background:var(--panel);display:grid;place-items:center;color:var(--ink-2)}
.ask-trigger:hover{color:var(--ink);border-color:var(--panel-line)}
.side-nav{flex:1;overflow-y:auto;padding:0 4px 20px 0;scrollbar-width:thin;scrollbar-color:var(--line) transparent}
.m-tabs{display:none}
.grp{margin:0 0 16px}
.grp-h{display:flex;align-items:center;gap:9px;padding:0 10px 5px;font-size:13px;font-weight:600;color:var(--ink)}
.grp-h .ic{width:14px;height:14px;color:var(--ink-2)}
.nav-a{display:block;padding:5px 10px;margin:1px 0;border-radius:8px;font-size:13.5px;line-height:1.45;color:var(--ink-2)}
.nav-a:hover{background:var(--hover);color:var(--ink)}
.nav-a[aria-current="page"]{background:var(--active);color:var(--ink);font-weight:600}
.theme{display:inline-flex;gap:2px;padding:3px;border:1px solid var(--line);border-radius:999px;align-self:flex-start;margin:8px 0 0 10px;background:var(--panel)}
.theme button{width:26px;height:24px;border:0;background:none;border-radius:999px;display:grid;place-items:center;color:var(--ink-3)}
.theme button .ic{width:15px;height:15px}
.theme button:hover{color:var(--ink)}
.theme button[aria-pressed="true"]{background:var(--active);color:var(--ink)}

.panel{background:var(--panel);border:1px solid var(--panel-line);border-right:0;border-bottom:0;border-radius:18px 0 0 0;min-height:calc(100vh - var(--top))}
.panel-in{display:grid;grid-template-columns:minmax(0,1fr) 210px;gap:48px;max-width:1140px;padding:40px 48px 0 56px}
.panel-in.no-toc{grid-template-columns:minmax(0,1fr)}
main{min-width:0;max-width:700px;padding-bottom:24px}
main:focus{outline:0}

/* ─── page header ─── */
.eyebrow{font-size:13px;font-weight:500;color:var(--ink-3);margin:0 0 10px}
.eyebrow a:hover{color:var(--ink)}
.head{display:flex;align-items:flex-start;justify-content:space-between;gap:20px}
h1{font-size:28px;line-height:1.15;font-weight:600;letter-spacing:-.022em;margin:0 0 12px;color:var(--ink)}
.lead{font-size:15.5px;line-height:1.6;color:var(--ink-2);margin:0 0 24px;letter-spacing:-.004em}
.copy-group{position:relative;display:inline-flex;flex:none;margin-top:2px;border:1px solid var(--line);border-radius:9px;background:var(--panel)}
.copy-group button{display:inline-flex;align-items:center;gap:7px;height:32px;border:0;background:none;padding:0 11px;font-size:13.5px;font-weight:500;color:var(--ink)}
.copy-group button:hover{background:var(--hover)}
.copy-group .main-btn{border-radius:8px 0 0 8px}
.copy-group .more-btn{border-left:1px solid var(--line);border-radius:0 8px 8px 0;padding:0 8px}
.copy-menu{position:absolute;right:0;top:calc(100% + 6px);min-width:220px;background:var(--panel);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);padding:6px;z-index:30}
.copy-menu[hidden]{display:none}
.copy-menu button{display:flex;width:100%;height:auto;padding:9px 11px;border-radius:8px;flex-direction:column;align-items:flex-start;gap:1px;text-align:left}
.copy-menu button small{font-size:11.5px;color:var(--ink-3);font-weight:400}

/* ─── prose ─── */
.prose h2{font-size:19.5px;line-height:1.3;font-weight:600;letter-spacing:-.016em;margin:34px 0 9px;color:var(--ink)}
.prose > h2:first-child{margin-top:0}
.prose{font-size:14.5px;line-height:1.7;color:var(--body)}
.prose p{margin:0 0 14px}
.prose ul{margin:0 0 20px;padding-left:22px}
.prose li{margin:6px 0}
.prose li::marker{color:var(--ink-3)}
.prose strong{font-weight:600;color:var(--ink)}
.prose a:not(.card){font-weight:600;text-decoration:underline;text-decoration-color:var(--link-ul);text-decoration-thickness:1.5px;text-underline-offset:4px}
.prose a:not(.card):hover{text-decoration-color:var(--ink)}
.prose code{font-family:var(--mono);font-size:.86em;background:var(--code-bg);border:1px solid var(--line);border-radius:6px;padding:1.5px 6px}
.prose kbd{display:inline-block;min-width:24px;text-align:center;padding:0 7px;line-height:22px;border:1px solid var(--line);border-bottom-width:2px;border-radius:6px;background:var(--panel);font-size:11.5px;color:var(--ink-2)}

ol.steps{list-style:none;counter-reset:s;margin:8px 0 26px;padding:0}
ol.steps > li{counter-increment:s;position:relative;padding:2px 0 16px 40px;margin:0}
ol.steps > li::before{content:counter(s);position:absolute;left:0;top:1px;width:24px;height:24px;border-radius:50%;background:var(--active);
  color:var(--ink);font-size:12.5px;font-weight:600;display:grid;place-items:center;line-height:1}
ol.steps > li::after{content:"";position:absolute;left:11.5px;top:30px;bottom:4px;width:1px;background:var(--line)}
ol.steps > li:last-child{padding-bottom:4px}
ol.steps > li:last-child::after{display:none}

.callout{display:flex;gap:10px;align-items:flex-start;border:1px solid;border-radius:11px;padding:11px 14px;margin:16px 0 20px;font-size:14px;line-height:1.6}
.callout .ic{width:16px;height:16px;margin-top:2px}
.callout p{margin:0}
.callout .callout-title{display:none}
.callout.note{background:var(--note-bg);border-color:var(--note-line)} .callout.note .ic{color:var(--note)}
.callout.important{background:var(--tip-bg);border-color:var(--tip-line)} .callout.important .ic{color:var(--tip)}
.callout.warning{background:var(--warn-bg);border-color:var(--warn-line)} .callout.warning .ic{color:var(--warn)}

.table-wrap{overflow-x:auto;margin:8px 0 22px;border:1px solid var(--line);border-radius:11px;-webkit-overflow-scrolling:touch}
table{width:100%;border-collapse:collapse;font-size:13.5px;min-width:480px}
th{text-align:left;font-weight:600;font-size:13px;color:var(--ink);padding:9px 13px;border-bottom:1px solid var(--line);background:var(--code-bg)}
td{padding:9px 13px;border-top:1px solid var(--line-2);vertical-align:top;color:var(--body)}
tbody tr:first-child td{border-top:0}
td:first-child{color:var(--ink);font-weight:500}

.cards{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:6px 0 26px}
.card{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:var(--panel);transition:border-color .15s}
.card:hover{border-color:var(--ink-3)}
.card img{display:block;width:100%;height:auto;aspect-ratio:16/10;object-fit:cover;object-position:top left;border-bottom:1px solid var(--line);background:#0a0a0a}
.card-body{display:block;padding:13px 15px 15px}
.card-body b{display:block;font-size:14.5px;font-weight:600;letter-spacing:-.01em;margin-bottom:4px}
.card-body span{display:block;font-size:13.5px;line-height:1.55;color:var(--ink-2)}

.code{border:1px solid var(--line);border-radius:11px;overflow:hidden;margin:8px 0 20px;background:var(--code-bg)}
.code-head{display:flex;justify-content:space-between;align-items:center;padding:8px 10px 8px 16px;border-bottom:1px solid var(--line);font-size:12px;font-weight:500;color:var(--ink-3)}
.copy-code{border:1px solid var(--line);background:var(--panel);border-radius:8px;padding:3px 10px;font-size:12px;color:var(--ink-2)}
.copy-code:hover{color:var(--ink)}
.code pre{margin:0;padding:13px 15px;overflow-x:auto;font-family:var(--mono);font-size:12.5px;line-height:1.65;color:var(--ink)}

.faq details{border-bottom:1px solid var(--line)}
.faq details:first-child{border-top:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;padding:12px 32px 12px 2px;font-weight:600;position:relative;line-height:1.45}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";position:absolute;right:8px;top:19px;width:7px;height:7px;border-right:2px solid var(--ink-3);border-bottom:2px solid var(--ink-3);transform:rotate(45deg);transition:transform .2s}
.faq details[open] summary::after{transform:rotate(225deg);top:22px}
.faq-a{padding:0 2px 18px;color:var(--ink-2)}
.faq-a p{margin:0}
dl.glossary{display:grid;grid-template-columns:200px 1fr;margin:0;border-top:1px solid var(--line)}
dl.glossary dt,dl.glossary dd{margin:0;padding:10px 0;border-bottom:1px solid var(--line-2)}
dl.glossary dt{font-weight:600;padding-right:18px}
dl.glossary dd{color:var(--ink-2)}

.feedback{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:40px 0 0;padding:18px 0 0;border-top:1px solid var(--line);font-size:13.5px;color:var(--ink-2)}
.fb-btn{display:inline-flex;align-items:center;gap:7px;border:1px solid var(--line);background:var(--panel);border-radius:999px;padding:5px 14px;font-size:13.5px;color:var(--ink)}
.fb-btn:hover{background:var(--hover)}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:20px}
.pager a{display:block;border:1px solid var(--line);border-radius:11px;padding:11px 14px}
.pager a:hover{border-color:var(--ink-3)}
.pager small{display:block;font-size:12px;color:var(--ink-3);margin-bottom:2px}
.pager b{font-weight:600;font-size:14px}
.pager .next{text-align:right;grid-column:2}

.askbar-wrap{position:sticky;bottom:16px;z-index:20;margin-top:30px;pointer-events:none}
.askbar{pointer-events:auto;display:flex;align-items:flex-end;gap:10px;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:8px 8px 8px 14px;box-shadow:var(--shadow)}
.askbar textarea{flex:1;border:0;outline:0;resize:none;background:none;font:inherit;font-size:14.5px;line-height:1.5;color:var(--ink);height:38px;padding:3px 0}
.askbar textarea::placeholder{color:var(--ink-3)}
.askbar .meta{display:flex;align-items:center;gap:10px}
.send{width:30px;height:30px;border-radius:50%;border:0;background:var(--active);display:grid;place-items:center;color:var(--ink-2)}
.send:hover{background:var(--ink);color:var(--bg)}
.send .ic{width:16px;height:16px}

.site-foot{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:22px 0 28px;margin-top:36px;border-top:1px solid var(--line);font-size:12.5px;color:var(--ink-3)}
.site-foot a:hover{color:var(--ink)}

/* ─── on this page ─── */
.otp{position:sticky;top:calc(var(--top) + 40px);max-height:calc(100vh - var(--top) - 80px);overflow-y:auto;padding-top:4px}
.otp h4{display:flex;align-items:center;gap:9px;font-size:13.5px;font-weight:600;margin:0 0 12px}
.otp h4 .ic{width:16px;height:16px;color:var(--ink-2)}
.otp ul{list-style:none;margin:0;padding:0;border-left:1px solid var(--line)}
.otp a{display:block;padding:4px 0 4px 14px;margin-left:-1px;border-left:2px solid transparent;font-size:13.5px;line-height:1.45;color:var(--ink-2)}
.otp a:hover{color:var(--ink)}
.otp a.on{color:var(--ink);font-weight:600;border-left-color:var(--ink)}

/* ─── section + search pages ─── */
.rows{list-style:none;margin:0;padding:0}
.rows li{border-top:1px solid var(--line)}
.rows li:last-child{border-bottom:1px solid var(--line)}
.rows a{display:block;padding:18px 2px}
.rows a:hover b{text-decoration:underline;text-decoration-color:var(--link-ul);text-underline-offset:4px}
.rows small{display:block;font-size:12px;color:var(--ink-3)}
.rows b{display:block;font-size:15px;font-weight:600;margin:1px 0 3px}
.rows span{display:block;font-size:13.5px;color:var(--ink-2)}
mark{background:var(--mark);color:inherit;border-radius:3px;padding:0 1px}

/* ─── search modal ─── */
.overlay{position:fixed;inset:0;z-index:100;background:rgba(10,12,12,.42);backdrop-filter:blur(3px);display:flex;justify-content:center;align-items:flex-start;padding:11vh 16px 16px}
.overlay[hidden]{display:none}
.dialog{width:100%;max-width:620px;background:var(--panel);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);overflow:hidden;animation:pop .16s cubic-bezier(.2,.8,.2,1)}
@keyframes pop{from{opacity:0;transform:translateY(-6px) scale(.985)}}
.dlg-in{display:flex;align-items:center;gap:12px;padding:0 16px;border-bottom:1px solid var(--line)}
.dlg-in .ic{color:var(--ink-3)}
.dlg-in input{flex:1;height:50px;border:0;outline:0;background:none;font:inherit;font-size:15px;color:var(--ink)}
.dlg-in input::placeholder{color:var(--ink-3)}
.dlg-in input::-webkit-search-cancel-button{display:none}
.esc{border:1px solid var(--line);border-radius:7px;padding:2px 7px;font-size:11px;color:var(--ink-3)}
.dlg-list{max-height:min(58vh,540px);overflow-y:auto;padding:8px}
.dlg-sec{font-size:11.5px;font-weight:600;color:var(--ink-3);padding:10px 12px 6px}
.hit{display:block;padding:9px 11px;border-radius:9px}
.hit:hover,.hit[aria-selected="true"]{background:var(--hover)}
.hit small{display:block;font-size:11.5px;color:var(--ink-3)}
.hit b{display:block;font-size:14px;font-weight:600;line-height:1.35;margin:1px 0 2px}
.hit span{display:block;font-size:13px;line-height:1.5;color:var(--ink-2)}
.dlg-empty{padding:26px 14px;text-align:center;color:var(--ink-2);font-size:13.5px}
.dlg-foot{display:flex;gap:18px;padding:10px 16px;border-top:1px solid var(--line);font-size:11.5px;color:var(--ink-3)}
.dlg-foot b{font-weight:600;color:var(--ink-2);border:1px solid var(--line);border-radius:5px;padding:0 5px;margin-right:4px}

/* ─── ask drawer ─── */
.ask{position:fixed;top:calc(var(--top) + 10px);right:14px;bottom:14px;width:min(440px,calc(100vw - 28px));z-index:90;background:var(--panel);
  border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);display:flex;flex-direction:column;overflow:hidden;
  transform:translateX(calc(100% + 30px));transition:transform .28s cubic-bezier(.2,.8,.2,1)}
.ask.open{transform:none}
.ask-h{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:14px 14px 14px 18px;border-bottom:1px solid var(--line)}
.ask-h b{display:flex;align-items:center;gap:9px;font-size:14px;font-weight:600}
.ask-h b .ic{color:var(--ink-2)}
.ask-h small{display:block;font-size:11.5px;color:var(--ink-3);font-weight:400;margin-top:1px}
.x-btn{width:34px;height:34px;border:0;background:none;border-radius:9px;display:grid;place-items:center;color:var(--ink-2)}
.x-btn:hover{background:var(--hover);color:var(--ink)}
.ask-body{position:relative;flex:1;overflow-y:auto;padding:18px}
.ask-hello{color:var(--ink-2);font-size:13.5px}
.ask-hello p{margin:0 0 12px}
.chip{display:inline-block;border:1px solid var(--line);border-radius:999px;padding:5px 12px;margin:0 6px 8px 0;font-size:13px;color:var(--ink);background:var(--panel)}
.chip:hover{background:var(--hover)}
.q{margin:0 0 12px auto;max-width:85%;width:fit-content;background:var(--active);border-radius:14px 14px 4px 14px;padding:9px 13px;font-size:13.5px}
.a{margin:0 0 22px;font-size:13.5px}
.a .from{font-size:12px;color:var(--ink-3);margin:0 0 8px}
.a .from a{color:var(--ink-2);font-weight:600;text-decoration:underline;text-decoration-color:var(--link-ul);text-underline-offset:3px}
.a .prose{font-size:13.5px;line-height:1.65;border:1px solid var(--line);border-radius:14px;padding:14px 16px}
.a .prose h2{font-size:15px;margin:0 0 8px}
.a .prose p:last-child,.a .prose ul:last-child,.a .prose ol:last-child{margin-bottom:0}
.a .prose ol.steps > li{padding-left:40px;padding-bottom:16px}
.a .prose ol.steps > li::before{width:26px;height:26px;font-size:11.5px}
.a .prose ol.steps > li::after{left:12.5px;top:31px}
.a .prose table{min-width:0;font-size:13px}
.a .prose th,.a .prose td{padding:9px 11px}
.a .rel{margin-top:10px;font-size:12.5px;color:var(--ink-3)}
.a .rel a{display:block;color:var(--ink);font-weight:500;padding:3px 0}
.a .rel a:hover{text-decoration:underline;text-underline-offset:3px}
.ask-f{border-top:1px solid var(--line);padding:12px}
.ask-f .askbar{box-shadow:none;border-radius:14px}
.ask-f textarea{height:36px}

.scrim{position:fixed;inset:var(--top) 0 0 0;background:rgba(10,12,12,.36);z-index:44}
.scrim[hidden]{display:none}
.toast{position:fixed;left:50%;bottom:26px;transform:translate(-50%,20px);opacity:0;background:var(--ink);color:var(--bg);font-size:13px;font-weight:500;padding:9px 16px;border-radius:999px;z-index:120;transition:opacity .2s,transform .25s cubic-bezier(.2,.8,.2,1);pointer-events:none}
.toast.on{opacity:1;transform:translate(-50%,0)}

/* ─── responsive ─── */
@media (max-width:1280px){.panel-in{grid-template-columns:minmax(0,1fr);padding:44px 48px 0 56px}.otp{display:none}}
@media (max-width:1060px){
  :root{--side:0px}
  .top{grid-template-columns:auto minmax(0,1fr) auto;padding-right:12px}
  .menu-btn{display:inline-flex}
  .brand{padding-left:4px}
  .tabs{display:none}
  .frame{grid-template-columns:minmax(0,1fr)}
  .side{position:fixed;top:var(--top);left:0;bottom:0;height:auto;width:min(88vw,340px);background:var(--bg);z-index:45;
    transform:translateX(-104%);transition:transform .26s cubic-bezier(.2,.8,.2,1);border-right:1px solid var(--line)}
  .side.open{transform:none}
  .m-tabs{display:flex;flex-wrap:wrap;gap:6px;margin:0 4px 20px 10px}
  .m-tabs a{border:1px solid var(--line);border-radius:999px;padding:5px 12px;font-size:13px;font-weight:500;color:var(--ink-2);background:var(--panel)}
  .m-tabs a[aria-current="page"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
  .panel{border-radius:0;border-left:0}
  .panel-in{padding:30px 20px 0}
}
@media (max-width:640px){
  body{font-size:14.5px}
  .top{display:flex;justify-content:space-between;gap:10px}
  .brand .docs{font-size:15.5px}
  .askbar .meta kbd{display:none}
  .top-r .tbtn:not(.solid){display:none}
  .tbtn.solid{height:36px;padding:0 12px;font-size:13px}
  h1{font-size:24px} .lead{font-size:14.5px;margin-bottom:24px}
  .head{flex-direction:column;gap:6px}
  .prose h2{font-size:17px;margin-top:36px}
  .cards{grid-template-columns:1fr}
  .pager{grid-template-columns:1fr}.pager .next{grid-column:1}
  dl.glossary{grid-template-columns:1fr} dl.glossary dt{border-bottom:0;padding-bottom:0}
  .overlay{padding:10px}
  .ask{top:auto;left:0;right:0;bottom:0;width:100%;height:86vh;border-radius:18px 18px 0 0;transform:translateY(100%)}
  .askbar-wrap{bottom:12px}
  .askbar textarea{height:40px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}
@media print{.top,.side,.otp,.askbar-wrap,.feedback,.pager,.site-foot{display:none!important}.frame{display:block}.panel{border:0}.panel-in{padding:0;display:block}}