:root{color-scheme:light dark;font-family:system-ui,sans-serif;line-height:1.5;--bg: #0f1419;--card: #171d26;--text: #e7ecf3;--muted: #9aa7b8;--accent: #4f8cff;--border: #2a3545;--error: #f87171}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text)}a{color:var(--accent)}button,.link-btn{cursor:pointer;border:0;border-radius:8px;padding:.6rem 1rem;background:var(--accent);color:#fff;font:inherit}button.secondary,.link-btn{background:transparent;color:var(--text);border:1px solid var(--border)}.center{min-height:100vh;display:grid;place-items:center;padding:1rem}.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:1.5rem;width:min(100%,24rem)}.login-card h1{margin:0 0 .25rem}form{display:grid;gap:.75rem}label{display:grid;gap:.35rem;font-size:.9rem}input{padding:.55rem .7rem;border-radius:8px;border:1px solid var(--border);background:#0d1117;color:var(--text)}.muted{color:var(--muted)}.error{color:var(--error)}.shell{min-height:100vh;display:grid;grid-template-rows:auto 1fr}.topbar{display:flex;justify-content:space-between;align-items:center;padding:.75rem 1rem;border-bottom:1px solid var(--border)}.topbar-right{display:flex;gap:.75rem;align-items:center}.content{padding:1rem;max-width:48rem;margin:0 auto;width:100%}.tile-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(10rem,1fr));gap:.75rem;margin-top:1rem}.tile{display:grid;gap:.25rem;padding:1rem;border-radius:12px;border:1px solid var(--border);text-decoration:none;color:inherit}.tile-active{background:#1a2433}.tile-disabled{opacity:.45}.actions{display:flex;gap:.5rem;margin:1rem 0}.banner{padding:.75rem 1rem;border-radius:8px;border:1px dashed var(--border);margin:1rem 0;word-break:break-all}.list{list-style:none;padding:0;display:grid;gap:.5rem}.list li{display:flex;justify-content:space-between;gap:1rem;padding:.5rem 0;border-bottom:1px solid var(--border)}