:root {
  --navy: #0f2744;
  --gold: #c9a227;
  --bg: #eef2f6;
  --panel: #fff;
  --ink: #1c2430;
  --muted: #66758a;
  --line: #d7dee8;
  --danger: #b42318;
  --ok: #027a48;
  --font: "Segoe UI", system-ui, sans-serif;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: var(--font); background: var(--bg); color: var(--ink); }
a { color: var(--navy); text-decoration: none; }
.admin-shell { display: grid; grid-template-columns: 240px 1fr; min-height: 100vh; }
.admin-nav {
  background: var(--navy); color: #fff; padding: 1.25rem 1rem;
  display: flex; flex-direction: column; gap: .35rem;
}
.admin-nav .brand { font-weight: 700; letter-spacing: .03em; margin-bottom: 1rem; }
.admin-nav .brand small { display: block; font-weight: 400; opacity: .65; font-size: .75rem; }
.admin-nav a {
  color: rgba(255,255,255,.82); padding: .55rem .7rem; border-radius: 8px; font-size: .92rem;
}
.admin-nav a:hover, .admin-nav a.is-active { background: rgba(255,255,255,.1); color: #fff; }
.admin-main { padding: 1.5rem; }
.admin-top {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 1.25rem; gap: 1rem; flex-wrap: wrap;
}
.admin-top h1 { margin: 0; font-size: 1.45rem; }
.card {
  background: var(--panel); border: 1px solid var(--line); border-radius: 12px;
  padding: 1.1rem 1.2rem; margin-bottom: 1rem;
}
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: .75rem; }
.stat { background: #f7f9fc; border-radius: 10px; padding: .9rem; }
.stat strong { display: block; font-size: 1.4rem; color: var(--navy); }
.stat span { color: var(--muted); font-size: .85rem; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: .65rem .5rem; border-bottom: 1px solid var(--line); font-size: .92rem; vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: .8rem; text-transform: uppercase; letter-spacing: .04em; }
.btn {
  display: inline-flex; align-items: center; gap: .35rem;
  border: 0; border-radius: 8px; padding: .55rem .9rem; font: inherit; cursor: pointer;
}
.btn-primary { background: var(--navy); color: #fff; }
.btn-gold { background: var(--gold); color: #1a1405; font-weight: 600; }
.btn-danger { background: #fceceb; color: var(--danger); }
.btn-ghost { background: #fff; border: 1px solid var(--line); }
.actions { display: flex; gap: .4rem; flex-wrap: wrap; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-grid .full { grid-column: 1 / -1; }
label { display: block; font-size: .85rem; font-weight: 600; margin-bottom: .3rem; }
input[type=text], input[type=email], input[type=password], input[type=number], input[type=url], select, textarea {
  width: 100%; border: 1px solid var(--line); border-radius: 8px; padding: .6rem .7rem; font: inherit; background: #fff;
}
textarea { min-height: 140px; resize: vertical; }
.help { color: var(--muted); font-size: .8rem; margin-top: .25rem; }
.alert { padding: .75rem .9rem; border-radius: 8px; margin-bottom: 1rem; }
.alert-ok { background: #eaf7ef; color: var(--ok); }
.alert-error { background: #fceceb; color: var(--danger); }
.login-wrap {
  min-height: 100vh; display: grid; place-items: center;
  background: linear-gradient(145deg, #0a1b30, #16365c);
}
.login-card { width: min(400px, calc(100% - 2rem)); background: #fff; border-radius: 14px; padding: 1.5rem; }
.login-card h1 { margin: 0 0 .35rem; font-size: 1.35rem; }
.login-card p { color: var(--muted); margin: 0 0 1rem; }
.checkbox { display: flex; align-items: center; gap: .45rem; font-weight: 500; }
.badge { display: inline-block; padding: .15rem .45rem; border-radius: 999px; font-size: .72rem; color: #fff; }
@media (max-width: 860px) {
  .admin-shell { grid-template-columns: 1fr; }
  .admin-nav { flex-direction: row; flex-wrap: wrap; }
  .form-grid { grid-template-columns: 1fr; }
}