:root {
  --brand: #0A2540;
  --brand2: #13294B;
  --gold: #FFD700;
  --bg: #F5F5F5;
  --text: #0f172a;
  --muted: #64748b;
  --card: #ffffff;
  --ring: rgba(10,37,64,.25);
  --radius: 14px;
}
* { box-sizing: border-box }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 16px/1.5 'Open Sans', system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
}
a { color: var(--brand); text-decoration: none }
a:hover { text-decoration: underline }
h1,h2,h3 { font-family: Montserrat, system-ui, sans-serif; margin: 0 0 .5rem }
.container { max-width: 1100px; margin: 0 auto; padding: 0 20px }

.nav {
  position: sticky; top: 0; z-index: 999; backdrop-filter: blur(10px);
  background: rgba(255,255,255,.85); border-bottom: 1px solid rgba(2,6,23,.06);
}
.nav-inner { display:flex; align-items:center; justify-content:space-between; height:64px }
.brand { display:flex; gap:10px; align-items:center; font-weight:800; color: var(--brand) }

.sidebar {
  width: 250px; background: #fff; border-right: 1px solid rgba(2,6,23,.06);
  padding: 18px; position: sticky; top: 64px; height: calc(100vh - 64px); overflow:auto;
}
.layout { display: grid; grid-template-columns: 250px 1fr; gap: 20px }
@media (max-width: 900px) { .layout { grid-template-columns: 1fr } .sidebar { position:static; height:auto } }

.card { background:#fff; border:1px solid rgba(2,6,23,.06); border-radius: var(--radius); box-shadow: 0 8px 20px rgba(0,0,0,.06); padding: 16px }
.table { width: 100%; border-collapse: collapse; background:#fff; border-radius: var(--radius); overflow:hidden; border:1px solid rgba(2,6,23,.06) }
.table th, .table td { padding: 10px 12px; border-bottom: 1px solid rgba(2,6,23,.06) }
.table th { text-align:left; background: #f8fafc }
.btn {
  display:inline-block; background: var(--brand); color:#fff;
  padding:10px 14px; border-radius: 10px; border:1px solid rgba(10,37,64,.2); font-weight:700
}
.btn.gold { background: var(--gold); color:#111; border:1px solid rgba(255,215,0,.5) }
.btn.light { background: #f1f5f9; color:#111; border:1px solid rgba(2,6,23,.08) }
.btn:hover { transform: translateY(-1px) }
.grid { display:grid; gap: 16px }
.grid-2 { grid-template-columns: 1fr 1fr }
@media (max-width: 760px) { .grid-2 { grid-template-columns: 1fr } }

.input, .select, .textarea {
  width: 100%; padding: 10px 12px; border-radius: 10px; border:1px solid rgba(2,6,23,.12);
}
label { font-weight: 700 }
.badge { display:inline-block; padding: 6px 10px; border-radius:999px; background:#eef2ff; color:#3730a3; font-weight:700; font-size:.9rem }
.flash { margin: 10px 0; padding: 10px 12px; border-radius: 10px }
.flash.ok { background:#ecfeff; border:1px solid #a5f3fc }
.flash.err { background:#fef2f2; border:1px solid #fecaca }
.footer { margin: 30px 0; color: var(--muted); font-size:.95rem }