:root{color-scheme:dark;--bg:#0c151c;--panel:#15212a;--ink:#edf1eb;--muted:#a8b6bf;--accent:#ddb77a;--line:#34434c}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.55 system-ui,sans-serif}header{padding:24px 5%;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}.brand{color:var(--ink);text-decoration:none;letter-spacing:5px;font-size:28px;font-weight:700}.brand span{color:var(--accent)}.brand small{display:block;font-size:9px;letter-spacing:3px}.badge,.eyebrow{color:var(--accent);font-size:11px;letter-spacing:2px}.badge{border:1px solid var(--line);padding:8px 12px}main{max-width:1440px;margin:auto;padding:40px 5%}.intro{max-width:820px;padding-bottom:24px}h1{font-size:clamp(40px,6vw,72px);line-height:1.07;font-weight:500;letter-spacing:-2px;margin:16px 0}h1 em{font-style:normal;color:var(--accent)}h2{font-size:25px;font-weight:500}h3{font-size:16px;color:var(--accent)}p{color:var(--muted)}.panel{background:var(--panel);padding:24px;border:1px solid var(--line);border-radius:3px;margin-bottom:18px}#loginPanel{max-width:540px}.layout{display:grid;grid-template-columns:260px 1fr;gap:24px}.toolbar,.inline{display:flex;gap:16px;align-items:center;flex-wrap:wrap}.toolbar{justify-content:space-between}.inline{margin-bottom:24px}.inline label{flex:1}label{display:block;color:var(--muted);font-size:13px;margin-bottom:12px}input,textarea,select{display:block;width:100%;padding:12px;background:#0c151c;color:var(--ink);border:1px solid #667680;border-radius:3px;margin-top:6px;font:inherit}textarea{min-height:260px;font:13px/1.5 monospace}button{padding:12px 16px;background:transparent;border:1px solid #77858b;color:var(--ink);cursor:pointer;border-radius:3px;font:inherit}button:hover{background:#263640}button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid var(--accent);outline-offset:3px}button:disabled{opacity:.55;cursor:not-allowed}.primary{color:#14212a;background:var(--accent);border-color:var(--accent);font-weight:600}.primary:hover{background:#eed0a0}aside button{display:block;width:100%;text-align:left;margin-bottom:8px}#message{margin-bottom:16px;white-space:pre-wrap;color:#ffe3b7}.stage{display:inline-block;padding:5px 10px;border:1px solid var(--accent);color:var(--accent);font-size:12px;letter-spacing:1px}.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:20px 0}.metric{border-top:1px solid var(--line);padding-top:12px}.metric strong{display:block;font-size:24px}.metric small{color:var(--muted)}.twin{height:220px;border:1px solid var(--line);background:#0e1920;margin:16px 0}.twin svg{width:100%;height:100%}.twin polygon{fill:#243a46;stroke:#ddb77a;stroke-width:1.5}.twin text{fill:#edf1eb;font:13px system-ui}.split{display:grid;grid-template-columns:1fr 1fr;gap:20px}pre{white-space:pre-wrap;overflow-wrap:anywhere;max-height:500px;overflow:auto;color:var(--muted);font:13px/1.6 monospace}footer{margin-top:32px;border-top:1px solid var(--line);padding-top:24px;color:var(--muted);font-size:11px;letter-spacing:1px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}[hidden]{display:none!important}@media(max-width:850px){.layout,.split{grid-template-columns:1fr}.metrics{grid-template-columns:1fr}main{padding-top:24px}.badge{font-size:9px}.inline button{width:100%}aside{order:0}button{min-height:44px}}

fieldset{border:1px solid var(--line);padding:16px;margin:10px 0;min-width:0}legend{color:var(--accent);padding:0 8px;font-size:13px}input[type=checkbox]{width:22px;height:22px}.input-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.input-grid>fieldset{grid-column:1/-1}@media(max-width:650px){.input-grid{grid-template-columns:1fr}}

.operation-form{margin-top:24px;border-top:1px solid var(--line);padding-top:18px}.operation-form>button{margin-top:12px}