:root{--background:#071d31;--surface:#102f47;--inset:#092338;--text:#e6f5ff;--primary:#54e4dc;--accent:#ffb86b;--muted:#a5bed0;--line:#376078;--error:#ffb3ab;color:var(--text);background:var(--background);font-family:"Segoe UI",sans-serif;color-scheme:dark}*{box-sizing:border-box}body{margin:0;font-size:15px;line-height:1.6}header,main,footer{max-width:1400px;margin:auto;width:calc(100% - 80px)}header{height:80px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line)}a{color:inherit;text-underline-offset:5px}.brand{font-weight:600;text-decoration:none;font-size:18px}.brand span{color:var(--primary);font:30px Consolas,monospace;margin-right:12px}nav{font-size:13px}.intro{display:flex;justify-content:space-between;gap:48px;align-items:center;padding:36px 0}.intro>p{max-width:490px;font-size:14px;color:var(--muted)}.eyebrow,.tag,.telemetry,.meter,footer{font:11px/1.6 Consolas,monospace;letter-spacing:1px}.eyebrow{color:var(--primary);margin:0 0 12px}h1{font-size:38px;line-height:1.1;letter-spacing:-1px;font-weight:600;margin:0}h2{font-size:16px;font-weight:600;margin:0}.instrument{border:1px solid var(--line);border-radius:6px;background:var(--surface);overflow:hidden}.telemetry{display:flex;justify-content:space-between;padding:12px 20px;border-bottom:1px solid var(--line);color:var(--muted)}.telemetry b{color:var(--primary);padding:0 16px}.workspace{display:grid;grid-template-columns:minmax(0,1fr) 220px}.editors{display:grid;grid-template-columns:1fr 1fr;min-width:0}.pane{padding:20px;min-width:0}.pane+.pane{border-left:1px solid var(--line)}.pane-head{display:flex;align-items:center;justify-content:space-between;gap:8px;min-height:44px;margin-bottom:12px}.pane-head label{font-size:14px;font-weight:600}.tag{color:var(--accent);font-size:10px;letter-spacing:0}button{min-height:44px;padding:9px 12px;font:12px "Segoe UI",sans-serif;color:var(--text);border:1px solid var(--line);border-radius:6px;background:transparent;cursor:pointer;transition:border-color .12s,background .12s}button:hover:enabled{border-color:var(--primary);background:var(--inset)}button:disabled{opacity:.4;cursor:not-allowed}textarea{width:100%;display:block;height:320px;min-height:160px;resize:vertical;padding:16px;border:1px solid var(--line);border-radius:6px;background:var(--inset);color:var(--text);font:14px/1.7 Consolas,monospace}textarea::placeholder{color:var(--muted);opacity:1}textarea[aria-invalid=true]{border-color:var(--error)}.meter{display:flex;justify-content:space-between;gap:10px;margin-top:12px;color:var(--muted);font-size:10px;letter-spacing:0}.meter span:first-child{color:var(--primary)}.hint{font-size:11px;line-height:1.7;color:var(--muted);margin:12px 0 0}aside{border-left:1px solid var(--line);padding:24px 16px}aside button{width:100%;display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}.primary{background:var(--primary);border-color:var(--primary);color:var(--background);font-weight:700}.primary:hover:enabled{background:#8cf0e9;color:var(--background)}.secondary{border-color:var(--accent);color:var(--accent)}.output-actions{border-top:1px solid var(--line);padding-top:20px;margin-top:24px}.quiet{margin-top:20px;border:0;text-decoration:underline;color:var(--muted)}.status-bar{border-top:1px solid var(--line);display:flex;gap:10px;align-items:center;padding:12px 20px;background:var(--inset)}.status-dot{width:6px;height:6px;border-radius:50%;background:var(--primary);flex-shrink:0}#status{margin:0;font-size:12px;color:var(--primary)}#error{color:var(--error);margin:0;padding:14px 20px;border-top:1px solid var(--error);font-size:13px}.notes{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;padding:28px 0;border-bottom:1px solid var(--line)}.notes p{font-size:12px;color:var(--muted);margin:8px 0 0}.faq{display:grid;grid-template-columns:1fr 1.7fr;gap:48px;padding:40px 0}.faq h2{font-size:26px}details{border-bottom:1px solid var(--line)}summary{padding:16px 0;min-height:44px;font-size:14px;cursor:pointer}details p{font-size:13px;color:var(--muted);line-height:1.8;margin:0 0 20px}footer{border-top:1px solid var(--line);padding:24px 0;display:flex;justify-content:space-between;gap:16px;color:var(--muted);font-size:10px}:focus-visible{outline:3px solid var(--accent);outline-offset:3px}.skip{position:absolute;top:-100px;left:16px;padding:12px;background:var(--primary);color:var(--background);z-index:2}.skip:focus{top:12px}[hidden]{display:none!important}@media(max-width:1000px){header,main,footer{width:calc(100% - 48px)}.intro{gap:24px}.intro>p{max-width:360px}.workspace{display:flex;flex-direction:column}aside{order:-1;border-left:0;border-bottom:1px solid var(--line);display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:16px}aside>.eyebrow,aside>.hint,.output-actions .eyebrow{display:none}aside button{width:auto;margin:0}.output-actions{display:flex;gap:8px;border:0;margin:0;padding:0}.quiet{margin:0}textarea{height:300px}.pane{padding:16px}.tag{font-size:9px}}@media(max-width:640px){header,main,footer{width:calc(100% - 32px)}header{height:68px}.brand{font-size:15px}.brand span{margin-right:6px}.intro{display:block;padding:28px 0}h1{font-size:32px}.intro>p{max-width:none;margin:16px 0 0}.telemetry{font-size:9px;padding:12px}.telemetry b{padding:0 4px}.editors{grid-template-columns:1fr}.pane+.pane{border-left:0;border-top:1px solid var(--line)}textarea{height:220px}.output-actions{flex-wrap:wrap}aside{gap:10px}.notes,.faq{grid-template-columns:1fr;gap:24px}.notes{padding:24px 0}.faq{padding:32px 0}.status-bar{padding:12px 16px}footer{flex-direction:column}}@media(prefers-reduced-motion:reduce){*,*::before,*::after{transition:none!important;animation:none!important}}