:root{--bg:#f3f5f8;--paper:#fff;--ink:#172331;--muted:#647181;--line:#dce2e9;--accent:#2159dc;--soft:#eaf0ff;--terminal:#142333;--code:#eef2f7;--error:#ad2635;--mono:ui-monospace,SFMono-Regular,Consolas,monospace;color-scheme:light}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}a{color:var(--accent);text-underline-offset:4px}button,input,select,textarea{font:inherit}button,a,input,select,textarea{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:default;opacity:.5}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid #4684ff;outline-offset:3px}.skip{position:fixed;top:-80px;left:20px;padding:12px;background:var(--paper);z-index:20}.skip:focus{top:10px}.topbar{height:76px;background:var(--paper);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 38px;gap:16px}.brand{display:flex;align-items:center;gap:11px;font-size:21px;font-weight:760;letter-spacing:-.7px;color:var(--ink);text-decoration:none}.brand-mark{background:var(--accent);color:#fff;border-radius:9px;padding:0 9px;font:700 25px/38px var(--mono)}.brand small{font-size:14px;color:var(--muted);font-weight:400;letter-spacing:0}.toplinks{display:flex;align-items:center;gap:26px}.toplinks a{color:var(--muted);text-decoration:none;font-size:14px}.theme{border:1px solid var(--line);background:transparent;color:var(--ink);border-radius:7px;padding:7px 12px;font-size:14px}.layout{display:grid;grid-template-columns:225px minmax(0,1fr);max-width:1560px;margin:auto}.sidebar{padding:34px 22px;border-right:1px solid var(--line);min-height:calc(100vh - 76px)}.nav-label{font:600 12px/1.5 var(--mono);color:var(--muted);letter-spacing:1.5px;margin:10px 12px 13px}.nav-label:not(:first-child){margin-top:34px}.sidebar a{display:block;text-decoration:none;color:var(--muted);font-size:14px;padding:10px 12px;margin:3px 0;border-radius:6px}.sidebar a:hover{background:var(--paper);color:var(--ink)}.sidebar a[aria-current=page]{background:var(--soft);color:var(--accent);font-weight:650}.sidebar .footnote{border-top:1px solid var(--line);margin:34px 12px 0;padding-top:20px;font-size:13px;color:var(--muted)}main{min-width:0;padding:38px 42px 55px}.eyebrow{color:var(--accent);font:600 12px/1.5 var(--mono);letter-spacing:1.6px;text-transform:uppercase;margin:0 0 8px}h1{font-size:clamp(27px,3vw,38px);line-height:1.2;letter-spacing:-1.25px;margin:0 0 12px}h2{font-size:23px;line-height:1.3;letter-spacing:-.5px}h3{font-size:17px;line-height:1.5}.intro{margin:0 0 27px;color:var(--muted);max-width:740px}.workspace{display:grid;grid-template-columns:minmax(0,1fr) 258px;gap:24px;align-items:start}.panel{background:var(--paper);border:1px solid var(--line);border-radius:12px;overflow:hidden;box-shadow:0 3px 14px #17233104}.panel-body{padding:25px}.tabs{display:flex;border-bottom:1px solid var(--line);padding:0 22px;gap:23px}.tab{background:none;border:0;padding:18px 0;color:var(--muted);border-bottom:3px solid transparent;font-size:14px;font-weight:600}.tab[aria-selected=true]{color:var(--accent);border-bottom-color:var(--accent)}label{display:block;font-size:14px;font-weight:600;margin-bottom:8px}.input-row{display:flex;gap:10px}.field,input,select,textarea{width:100%;border:1px solid var(--line);border-radius:7px;background:var(--bg);color:var(--ink);padding:12px 13px;min-width:0}input,textarea{font-family:var(--mono)}input.large{font-size:21px;letter-spacing:.4px}select{font-size:14px;width:auto;max-width:100%}textarea{resize:vertical;min-height:200px;font-size:15px}input:focus,textarea:focus{border-color:var(--accent)}.help{font-size:13px;color:var(--muted);margin:8px 0 0}.actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}.btn{border:1px solid var(--line);background:var(--paper);color:var(--ink);padding:8px 13px;border-radius:6px;font-size:14px;display:inline-block;text-decoration:none}.btn:hover{border-color:var(--accent);color:var(--accent)}.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}.error{color:var(--error);font-size:14px;min-height:23px;margin:10px 0 0}.result-heading{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:13px;margin-bottom:4px;gap:12px}.result-heading span{font-size:12px;color:var(--muted);letter-spacing:1px;font-family:var(--mono)}.result-heading select{padding:6px 9px;max-width:195px;background:var(--paper)}.results{margin-top:22px}.result{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:13px 0;border-bottom:1px solid var(--line)}.result:last-child{border:0}.result small{display:block;font-size:12px;color:var(--muted);margin-bottom:3px}.result output{font:14px/1.6 var(--mono);overflow-wrap:anywhere;display:block}.copy{border:1px solid var(--line);background:var(--paper);color:var(--muted);border-radius:5px;padding:5px 9px;font-size:12px;flex:none}.copy:hover{color:var(--accent);border-color:var(--accent)}.live{background:var(--terminal);color:#fff;border-radius:12px;padding:23px;margin-bottom:18px}.live .caption{color:#b1c3d5;font:12px var(--mono);letter-spacing:1px}.live strong{display:block;font:500 27px/1.8 var(--mono);letter-spacing:-1px;margin-top:10px}.live .live-date{font-size:13px;color:#b1c3d5;margin:0 0 20px}.live .btn{background:#26394d;border-color:#435366;color:#fff;width:100%}.side-note{padding:19px;background:var(--paper);border:1px solid var(--line);border-radius:10px;font-size:14px;color:var(--muted)}.side-note h3{margin:0 0 8px;color:var(--ink)}.side-note p{margin:0 0 10px}.key{display:inline-block;font-family:var(--mono);font-size:12px;border:1px solid var(--line);padding:1px 5px;border-radius:4px;background:var(--bg)}.section{margin-top:35px}.section-title{display:flex;align-items:center;justify-content:space-between;gap:15px}.section-title h2{margin:0 0 17px}.section-title a{font-size:14px}.code-tabs{display:flex;overflow-x:auto;gap:0;background:var(--paper);border-bottom:1px solid var(--line)}.code-tabs button{border:0;background:transparent;color:var(--muted);padding:13px 19px;font:13px var(--mono);border-bottom:2px solid transparent}.code-tabs button[aria-selected=true]{color:var(--accent);border-color:var(--accent)}pre{margin:0;background:var(--code);padding:22px;overflow:auto;font:14px/1.8 var(--mono);tab-size:2}code{font-family:var(--mono);font-size:.92em}.codebar{display:flex;justify-content:space-between;padding:10px 18px;border-top:1px solid var(--line);font-size:12px;color:var(--muted);align-items:center}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.link-card{padding:20px;text-decoration:none;color:var(--ink);background:var(--paper);border:1px solid var(--line);border-radius:9px}.link-card:hover{border-color:var(--accent)}.link-card .number{font:12px var(--mono);color:var(--accent)}.link-card h3{margin:12px 0 5px}.link-card p{font-size:14px;color:var(--muted);margin:0}.prose{max-width:820px}.prose p,.prose li{color:var(--muted)}.prose h2{margin-top:30px}.prose pre{border-radius:8px;border:1px solid var(--line);margin:20px 0}.prose strong{color:var(--ink)}.prose li{margin-bottom:8px}.notice{border-left:3px solid var(--accent);background:var(--soft);padding:15px 20px;margin:23px 0;border-radius:0 7px 7px 0}.notice p{margin:0;color:var(--ink)}details{padding:16px 0;border-bottom:1px solid var(--line)}summary{cursor:pointer;font-weight:600}details p{color:var(--muted);font-size:15px;max-width:800px}.footer{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;color:var(--muted);border-top:1px solid var(--line);margin-top:45px;padding-top:20px;font-size:12px}.footer a{color:var(--muted)}.grid2{display:grid;grid-template-columns:1fr 1fr;gap:18px}.toolwide{max-width:850px}.batch-table{width:100%;border-collapse:collapse;font:13px/1.6 var(--mono)}.batch-table td,.batch-table th{text-align:left;padding:10px;border-bottom:1px solid var(--line);overflow-wrap:anywhere}.table-wrap{overflow:auto;max-height:440px}.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:var(--ink);color:var(--paper);padding:10px 20px;border-radius:8px;z-index:20;box-shadow:0 5px 30px #0002}.mobile-nav{display:none}[hidden]{display:none!important}html[data-theme=dark]{--bg:#101a25;--paper:#172431;--ink:#e5edf5;--muted:#a0b0c0;--line:#304153;--accent:#86b1ff;--soft:#223850;--terminal:#0b131d;--code:#111d29;--error:#ff9b9b;color-scheme:dark}html[data-theme=dark] .btn.primary{background:#3267d7;color:#fff}html[data-theme=dark] .brand-mark{background:#3267d7}html[data-theme=dark] .tab[aria-selected=true]{color:#86b1ff}@media(prefers-color-scheme:dark){html:not([data-theme=light]):not([data-theme=dark]){--bg:#101a25;--paper:#172431;--ink:#e5edf5;--muted:#a0b0c0;--line:#304153;--accent:#86b1ff;--soft:#223850;--terminal:#0b131d;--code:#111d29;--error:#ff9b9b;color-scheme:dark}}@media(min-width:1450px){main{padding-left:55px;padding-right:55px}}@media(max-width:1120px){.workspace{grid-template-columns:minmax(0,1fr)}.aside{display:grid;grid-template-columns:1fr 1fr;gap:18px}.live{margin:0}.live strong{font-size:25px}.layout{grid-template-columns:195px minmax(0,1fr)}main{padding:30px 25px}.sidebar{padding:27px 12px}.cards{grid-template-columns:1fr 1fr}.cards .link-card:last-child{grid-column:1/-1}}@media(max-width:760px){.topbar{height:auto;min-height:68px;padding:15px 20px;flex-wrap:wrap}.toplinks a,.brand small{display:none}.layout{display:block}.sidebar{display:none}.mobile-nav{display:block;padding:8px 20px;border-bottom:1px solid var(--line);background:var(--paper)}.mobile-nav summary{font-size:14px;color:var(--muted)}.mobile-nav nav{display:flex;flex-wrap:wrap;gap:12px;padding:15px 0}.mobile-nav a{font-size:14px}.mobile-nav details{padding:0;border:0}main{padding:27px 18px}.intro{font-size:15px;margin-bottom:23px}.panel-body{padding:19px}.input-row{flex-wrap:wrap}.input-row input{flex:1 1 180px}.input-row select{flex:1 1 100px}input.large{font-size:19px}.tabs{gap:19px;padding:0 19px}.tab{font-size:13px}.result-heading{flex-wrap:wrap}.result output{font-size:13px}.aside,.cards,.grid2{grid-template-columns:1fr}.cards .link-card:last-child{grid-column:auto}.section-title{align-items:baseline}.section-title h2{font-size:21px}.section-title a{font-size:12px}.live{display:none}.side-note{font-size:13px;padding:15px}.side-note p:last-child{margin-bottom:0}.section{margin-top:28px}h1{letter-spacing:-.7px}.footer{margin-top:30px}.toast{max-width:90%;width:max-content;font-size:14px}.batch-table{min-width:570px}}

/* Language navigation stays visible on mobile and works without JavaScript. */
.toplinks{gap:14px}.language-menu{position:relative;font-size:14px}.language-menu summary{cursor:pointer;padding:7px 10px;border:1px solid var(--line);border-radius:7px}.language-menu nav{position:absolute;right:0;top:100%;min-width:165px;padding:8px;background:var(--paper);border:1px solid var(--line);border-radius:7px;z-index:30;box-shadow:0 4px 16px #0002}.language-menu nav a{display:block;padding:9px;color:var(--ink)}.language-menu a[aria-current=page]{font-weight:700;background:var(--accent-soft)}
@media(max-width:760px){.toplinks{gap:8px}.language-menu nav a{display:block}.topbar{gap:10px}.theme{padding:7px 8px;font-size:12px}.language-menu{font-size:12px}.brand{font-size:19px;gap:7px}}