:root{--bg:#f4f7fb;--surface:#fff;--surface-raised:#fff;--border:#e3e8f0;--border-soft:#edf1f7;--text:#0a1f44;--muted:#5b6b85;--accent:#0b86d6;--accent-hover:#0973ba;--accent-soft:#e8f4fd;--ok:#2f6f4f;--ok-soft:#e6f3ec;--warn:#9a6700;--warn-soft:#fbf1de;--danger:#b3261e;--danger-soft:#fbeaea;--radius:14px;--radius-sm:10px;--radius-lg:18px;--shadow-sm:0 1px 2px #0a1f440a, 0 1px 1px #0a1f4408;--shadow-md:0 4px 16px #0a1f4412, 0 1px 2px #0a1f440d;--shadow-lg:0 12px 32px #0a1f441f, 0 2px 6px #0a1f440f;--ring:0 0 0 3px #0b86d629;--ease:cubic-bezier(.2, .7, .3, 1);--font:ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--rail-bg:#0a1f44;--rail-raised:#14356b;--rail-text:#eef3fb;--rail-muted:#93a6c6;--rail-border:#1b3868;--rail-w:264px}@media (prefers-color-scheme:dark){:root{--bg:#050f24;--surface:#0e2249;--surface-raised:#123064;--border:#1f3a6b;--border-soft:#16294f;--text:#f0ece5;--muted:#9aa7c2;--accent:#2aa9ff;--accent-hover:#4fbaff;--accent-soft:#12294f;--ok:#6bbd90;--ok-soft:#12301f;--warn:#d9a441;--warn-soft:#322408;--danger:#e5726a;--danger-soft:#33130f;--shadow-sm:0 1px 2px #00000040;--shadow-md:0 4px 20px #00000059;--shadow-lg:0 16px 40px #00000073;--ring:0 0 0 3px #2aa9ff47}}*{box-sizing:border-box}html,body{background:var(--bg);color:var(--text);font-family:var(--font);margin:0;padding:0;font-size:16px;line-height:1.6}.shell{max-width:860px;margin:0 auto;padding:8px 0 80px}.topbar{z-index:20;border-bottom:1px solid var(--border-soft);background:color-mix(in srgb, var(--bg) 88%, transparent);-webkit-backdrop-filter:blur(10px);position:sticky;top:0}.topbar-inner{align-items:center;gap:12px;padding:14px 28px;display:flex}.rail-toggle{border-radius:var(--radius-sm);border:1px solid 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