*{box-sizing:border-box} :root{color-scheme:dark;--bg:#071321;--panel:#0d1c2d;--panel2:#102238;--border:#20364e;--text:#e7effa;--muted:#9bacbf;--blue:#35a4ff;--green:#61d67b;--orange:#ffad43;--red:#ff5b5b;--purple:#bd8cff;--code:#c6d7eb}body.light{--bg:#edf3f9;--code:#2a3f57;--panel:#fff;--panel2:#f3f7fc;--border:#d1deeb;--text:#15273a;--muted:#5b6c80;color-scheme:light;background:var(--bg)}body{margin:0;background:radial-gradient(ellipse at 60% -30%,#18324e 0,transparent 55%),var(--bg);color:var(--text);font:14px/1.45 system-ui,-apple-system,Segoe UI,sans-serif}button,select,input{font:inherit}button,select{color:var(--text);background:var(--panel2);border:1px solid var(--border);border-radius:7px;padding:9px 12px;cursor:pointer}button:hover{filter:brightness(1.15)}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--blue);outline-offset:2px}.topbar{display:flex;align-items:center;gap:28px;padding:13px 22px;border-bottom:1px solid var(--border);position:sticky;top:0;background:color-mix(in srgb,var(--bg) 92%,transparent);backdrop-filter:blur(12px);z-index:5}.brand{display:flex;align-items:center;gap:12px;min-width:330px}.train-icon{font-size:32px}.brand h1{font-size:20px;margin:0;font-weight:650}.brand p{margin:2px 0 0;color:var(--muted);font-size:12px}.topbar nav{display:flex;gap:5px;flex:1}.topbar nav a{color:var(--muted);text-decoration:none;padding:11px 13px;border-radius:7px}.topbar nav a:hover,.topbar nav a.active{color:var(--blue);background:var(--panel2)}.mode{display:flex;align-items:center;gap:12px}.quiet{background:transparent;border-color:transparent}main{max-width:1800px;margin:auto;padding:14px;display:grid;gap:12px}.panel{background:linear-gradient(140deg,color-mix(in srgb,var(--panel) 96%,#1c3650),var(--panel));border:1px solid var(--border);border-radius:8px;min-width:0;box-shadow:0 8px 22px #0000000b}.top-grid{display:grid;grid-template-columns:minmax(370px,.82fr) 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