:root {
  --bg:#fff;--fg:#0f172a;--muted:#475569;
  --card:#f8fafc;--border:#e2e8f0;
  --accent:#2563eb;--accent-contrast:#fff;
  --danger:#ef4444;color-scheme:light;
}
[data-theme="dark"] {
  --bg:#0b1220;--fg:#e5e7eb;--muted:#94a3b8;
  --card:#111827;--border:#1f2937;
  --accent:#60a5fa;--accent-contrast:#0b1220;
  --danger:#f87171;color-scheme:dark;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--fg)}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:1100px;margin:0 auto;padding:16px}
.app-header,.app-footer{display:flex;align-items:center;justify-content:space-between;gap:12px}
.brand .logo{font-weight:800;letter-spacing:.2px;font-size:1.2rem;color:var(--fg)}
.top-nav{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.user-pill{padding:6px 10px;background:var(--card);border:1px solid var(--border);border-radius:999px;font-size:.9rem}
.btn{padding:8px 12px;border-radius:10px;border:1px solid var(--border);background:var(--card);color:var(--fg);display:inline-flex;gap:8px;align-items:center;cursor:pointer}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-contrast)}
.btn.danger{background:var(--danger);border-color:var(--danger);color:#fff}
.btn.ghost{background:transparent;border-color:var(--border)}
.card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:16px;margin-bottom:16px}
.table{width:100%;border-collapse:collapse}
.table th,.table td{padding:10px 8px;border-bottom:1px solid var(--border);text-align:left;vertical-align:middle}
.table th{font-size:.9rem;color:var(--muted);font-weight:600}
.table tr:hover{background:rgba(148,163,184,.08)}
form{display:grid;gap:12px}
input,select{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:10px;background:var(--bg);color:var(--fg)}
label{font-weight:600;font-size:.95rem}
.row{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
@media(max-width:900px){.top-nav{flex:1;justify-content:flex-end}}