:root {
  --bg: #f4f7fb;
  --panel: #ffffff;
  --line: #dbe3ef;
  --ink: #16243b;
  --brand: #0f4c81;
  --ok: #107a3f;
  --warn: #9a5a00;
  --bad: #b21c1c;
}
* { box-sizing: border-box; }
body { margin:0; font-family: "Segoe UI", Tahoma, sans-serif; background: var(--bg); color: var(--ink); }
.topbar { display:flex; justify-content:space-between; align-items:center; padding:12px 18px; background: var(--brand); color:#fff; }
.topbar a { color:#fff; margin-left:14px; text-decoration:none; }
.layout { display:flex; min-height: calc(100vh - 48px); }
.sidebar { width:220px; background:#0d3558; padding:14px; display:flex; flex-direction:column; gap:8px; }
.sidebar a { color:#d7e8fa; text-decoration:none; padding:8px 10px; border-radius:6px; }
.sidebar a:hover { background:#154a78; }
.content { flex:1; padding:20px; }
.card { background:var(--panel); border:1px solid var(--line); border-radius:10px; padding:16px; margin-bottom:16px; }
.grid { display:grid; grid-template-columns: repeat(auto-fit, minmax(220px,1fr)); gap:12px; }
label { font-size:13px; font-weight:600; display:block; margin-bottom:4px; }
input, select, textarea { width:100%; padding:8px; border:1px solid #c7d4e6; border-radius:6px; }
button, .btn { background:var(--brand); color:#fff; border:none; border-radius:6px; padding:9px 12px; cursor:pointer; text-decoration:none; display:inline-block; }
.btn.secondary { background:#6b7f95; }
.btn.warn { background:var(--warn); }
.btn.bad { background:var(--bad); }
table { width:100%; border-collapse:collapse; background:#fff; border:1px solid var(--line); }
th, td { padding:8px; border-bottom:1px solid var(--line); font-size:13px; text-align:left; }
th { background:#edf3fb; }
.flash { background:#e9f7ec; border:1px solid #b5e0bf; color:#0f6428; padding:10px; border-radius:8px; margin-bottom:12px; }
.inline { display:flex; gap:8px; align-items:flex-end; flex-wrap:wrap; }
.badge { padding:3px 8px; border-radius:999px; font-size:12px; font-weight:600; }
.badge.active { background:#dff4e7; color:#14753d; }
.badge.disabled { background:#fde5e5; color:#a12626; }
.badge.expired { background:#fff1d8; color:#8e5a00; }
.quick-copy { background:#f1f7ff; border:1px dashed #a9c4e8; padding:10px; border-radius:8px; margin-top:10px; font-family:Consolas, monospace; }
@media (max-width: 900px) {
  .layout { flex-direction:column; }
  .sidebar { width:100%; flex-direction:row; flex-wrap:wrap; }
}