:root{--bg:#f6f8fb;--panel:#fff;--ink:#0f172a;--muted:#6b7280;--border:#e6e8ee;--shadow:0 10px 28px rgba(15,23,42,.06);--blue:#0b82ff;--green:#10b981;--red:#ef4444;--radius:16px}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.55 Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial}
a{color:var(--blue);text-decoration:none} a:hover{text-decoration:underline}
.layout{display:grid;grid-template-columns:260px 1fr;gap:22px;max-width:1400px;margin:0 auto;padding:24px}
@media(max-width:900px){.layout{grid-template-columns:1fr}}
.sidebar .card{height:100%;display:flex;flex-direction:column;gap:14px;padding:18px;background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}
.brand{display:flex;align-items:center;gap:10px}.brand img{width:40px;height:40px;border-radius:12px}.brand h1{font-size:18px;margin:0}
.nav{display:flex;flex-direction:column;gap:6px}
.nav a{display:flex;align-items:center;gap:8px;padding:10px 12px;border-radius:12px;color:var(--ink);border:1px solid transparent}
.nav a:hover{background:rgba(11,130,255,.06);border-color:var(--border);text-decoration:none}
.card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px}
.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.subtle{color:var(--muted);font-size:13px}
.btn{padding:8px 12px;border-radius:12px;border:1px solid var(--border);background:#f8fafc;color:var(--ink);cursor:pointer}
.btn:hover{box-shadow:0 0 0 2px rgba(11,130,255,.15) inset;text-decoration:none}
.btn.primary{background:#eaf3ff;border-color:#cfe2ff;color:#0b4fbf}
.btn.ok{background:#e8fff4;border-color:#b9f3d7;color:#066d4b}
.btn.danger{background:#ffe9e9;border-color:#ffc3c3;color:#a10f1e}
.input{padding:10px 12px;border-radius:10px;border:1px solid var(--border);background:#fff;min-width:250px}
details{border:1px dashed var(--border);border-radius:12px;padding:10px 12px;background:#fbfdff} details+details{margin-top:10px} details summary{cursor:pointer;font-weight:600}
.table{width:100%;border-collapse:separate;border-spacing:0;border:1px solid var(--border);border-radius:12px;overflow:hidden}
.table th,.table td{padding:10px 10px;border-bottom:1px solid var(--border);text-align:left;vertical-align:middle}
.table thead th{font-size:12px;letter-spacing:.04em;text-transform:uppercase;background:#f6f8ff;color:var(--muted)}
.table .actions a,.table .actions button{padding:6px 10px}
.badge{display:inline-block;padding:4px 10px;border-radius:999px;border:1px solid var(--border);background:#f8fafc;color:var(--muted);font-size:12px}
.footer{margin:20px 0;text-align:center;color:var(--muted);font-size:12px}