:root{color-scheme:light;--bg:#fff;--fg:#202124;--line:#dedede;--key:#245ba1;--muted:#666;--error:#b42318;--error-bg:#ffe9e7;--active:#ffc9c3}
:root[data-theme=dark]{color-scheme:dark;--bg:#171819;--fg:#e5e5e5;--line:#414141;--key:#99c4ff;--muted:#aaa;--error:#ffaaa1;--error-bg:#482624;--active:#73332e}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font:13px system-ui,sans-serif;height:100dvh;display:flex;flex-direction:column}header{height:58px;flex-shrink:0;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 20px;gap:16px}h1{font-size:17px;font-weight:600;margin:0}header div{display:flex;gap:8px}select{font:inherit;background:var(--bg);color:var(--fg);border:1px solid var(--line);padding:5px 8px;border-radius:3px}main{display:grid;grid-template-columns:minmax(0,3fr) minmax(260px,1fr);flex:1;min-height:0}#editor{position:relative;overflow:hidden}#input,#highlight{position:absolute;inset:0;width:100%;height:100%;margin:0;padding:14px;border:0;font:13px/1.35 Consolas,'Cascadia Mono',monospace;letter-spacing:0;tab-size:2;white-space:pre;overflow:auto;border-radius:0}#highlight{pointer-events:none;color:var(--fg);scrollbar-width:none}#highlight::-webkit-scrollbar{display:none}#input{background:transparent;color:transparent;caret-color:var(--fg);resize:none;outline:none;-webkit-text-fill-color:transparent}#input::selection{background:#718ac64d}#editor:focus-within{box-shadow:inset 0 0 0 1px var(--line)}.key{color:var(--key);text-decoration:underline dotted;text-underline-offset:4px}.bad{background:var(--error-bg);text-decoration:underline wavy var(--error);text-underline-offset:3px}.bad.active{background:var(--active)}aside{border-left:1px solid var(--line);padding:20px;overflow:auto;overflow-wrap:anywhere}h2{font-size:15px;margin:0 0 16px;font-weight:600}.error{display:block;width:100%;text-align:left;color:var(--error);background:transparent;border:0;border-left:2px solid var(--error);padding:8px 10px;margin:0 0 12px;font:inherit;cursor:pointer}.error:hover,.error:focus,.error.active{background:var(--error-bg);outline:none}.path{display:block;font:12px/1.5 Consolas,monospace;margin-bottom:5px}dl{margin:0}dt{color:var(--muted);margin-top:16px}dd{margin:4px 0;white-space:pre-wrap}#tooltip{position:fixed;z-index:3;max-width:min(420px,90vw);padding:12px 16px;border:1px solid var(--line);background:var(--bg);color:var(--fg);box-shadow:0 3px 12px #0002;pointer-events:none;font:13px/1.6 system-ui}#tooltip ul{margin:0;padding-left:17px}@media(max-width:650px){header{padding:0 10px}h1{font-size:14px}main{grid-template-columns:minmax(0,1fr) minmax(180px,.65fr)}#input,#highlight{padding:12px}aside{padding:12px}select{max-width:100px}}

.title{align-items:center;gap:16px}a{color:var(--key);font-size:12px}.requirement{display:inline-block;border:1px solid var(--line);border-radius:3px;padding:1px 6px;margin-bottom:7px;font-size:11px;font-weight:600}