:root {
  --navy: #0b2545;
  --navy-light: #13315c;
  --amber: #f59e0b;
  --surface: #f4f6fa;
  --border: #e3e8ef;
  --text: #0f172a;
  --muted: #64748b;
  --danger: #dc2626;
  --success: #16a34a;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--text);
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--surface); }
button, input, select, textarea { font: inherit; }

.logo { display: inline-grid; place-items: center; width: 36px; height: 36px; border-radius: 9px; background: var(--amber); color: var(--navy); font-weight: 900; font-size: 20px; }
.brand { display: flex; align-items: center; gap: 10px; color: #fff; font-weight: 900; letter-spacing: 1.5px; }

/* Login */
.login { min-height: 100vh; display: grid; place-items: center; background: var(--navy); padding: 20px; }
.login .card { width: 100%; max-width: 380px; }
.login .brand { justify-content: center; margin-bottom: 18px; font-size: 20px; }

/* Shell */
.shell { display: grid; grid-template-columns: 220px 1fr; min-height: 100vh; }
.side { background: var(--navy); color: #fff; padding: 18px 12px; display: flex; flex-direction: column; gap: 4px; }
.side .brand { padding: 0 6px 16px; font-size: 14px; }
.side button { text-align: left; background: none; border: 0; color: #cbd5e1; padding: 9px 12px; border-radius: 8px; cursor: pointer; }
.side button:hover { background: var(--navy-light); color: #fff; }
.side button.active { background: var(--amber); color: var(--navy); font-weight: 700; }
.side .me { margin-top: auto; padding: 12px 6px 0; border-top: 1px solid var(--navy-light); font-size: 13px; color: #cbd5e1; }
.side .me strong { display: block; color: #fff; }
.main { padding: 22px 26px; overflow-x: auto; }
.main h1 { margin: 0 0 4px; font-size: 22px; }
.sub { color: var(--muted); margin: 0 0 16px; font-size: 14px; }

.card { background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 18px; }
.toolbar { display: flex; gap: 10px; align-items: center; margin-bottom: 12px; flex-wrap: wrap; }
.toolbar input { flex: 1; min-width: 200px; }
.toolbar select.narrow { width: auto; min-width: 170px; }
.toolbar .count { color: var(--muted); font-size: 13px; white-space: nowrap; }
th.sortable { cursor: pointer; user-select: none; }
th.sortable:hover { color: var(--navy); }
th.sorted::after { content: " \25B2"; color: var(--amber); }
th.sorted.desc::after { content: " \25BC"; }
.hint { display: block; color: var(--muted); font-size: 12px; margin-top: 3px; }
input.upper { text-transform: uppercase; }
input.upper::placeholder { text-transform: none; }
.toast { position: fixed; bottom: 22px; right: 22px; background: var(--navy); color: #fff; padding: 12px 18px; border-radius: 10px; box-shadow: 0 10px 30px rgba(15, 23, 42, .3); font-weight: 600; z-index: 10; }
.stats { display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 12px; margin-bottom: 18px; }
.stat { background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 14px; cursor: pointer; }
.stat b { display: block; font-size: 26px; color: var(--navy); }
.stat span { color: var(--muted); font-size: 13px; }

table { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid var(--border); border-radius: 12px; overflow: hidden; font-size: 14px; }
th, td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--border); white-space: nowrap; }
th { background: #f8fafc; color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .4px; }
tbody tr:hover { background: #fffbeb; cursor: pointer; }
td.empty { text-align: center; color: var(--muted); padding: 28px; cursor: default; }

label { display: block; font-size: 13px; font-weight: 600; color: var(--muted); margin-bottom: 4px; }
input, select, textarea { width: 100%; padding: 9px 10px; border: 1px solid #cbd5e1; border-radius: 8px; background: #fff; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--amber); border-color: var(--amber); }
input[type=checkbox] { width: auto; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 12px 16px; }
.field.wide { grid-column: 1 / -1; }
.req::after { content: " *"; color: var(--danger); }

.btn { border: 0; border-radius: 8px; padding: 9px 16px; cursor: pointer; font-weight: 700; background: var(--navy); color: #fff; }
.btn.amber { background: var(--amber); color: var(--navy); }
.btn.ghost { background: none; color: var(--navy); border: 1px solid var(--border); }
.btn.danger { background: none; color: var(--danger); border: 1px solid #fecaca; }
.btn:disabled { opacity: .6; cursor: default; }
.actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 18px; flex-wrap: wrap; }
.actions .left { margin-right: auto; }

.error { color: var(--danger); font-size: 14px; margin-top: 10px; }
.ok { color: var(--success); font-size: 14px; margin-top: 10px; }
.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; background: #e2e8f0; font-size: 12px; font-weight: 600; }
.badge.on { background: #dcfce7; color: #166534; }
.badge.off { background: #fee2e2; color: #991b1b; }

dialog { border: 0; border-radius: 14px; padding: 0; width: min(860px, 94vw); box-shadow: 0 20px 60px rgba(15, 23, 42, .3); }
dialog::backdrop { background: rgba(11, 37, 69, .55); }
dialog .head { background: var(--navy); color: #fff; padding: 14px 18px; font-weight: 800; }
dialog .body { padding: 18px; max-height: 72vh; overflow-y: auto; }

@media (max-width: 760px) {
  .shell { grid-template-columns: 1fr; }
  .side { flex-direction: row; flex-wrap: wrap; }
  .side .brand, .side .me { width: 100%; }
  .main { padding: 16px; }
}