:root {
  --navy: #0f2744;
  --accent: #c41e3a;
  --bg: #f1f5f9;
  --card: #fff;
  --border: #e2e8f0;
  --text: #0f172a;
  --muted: #64748b;
  --radius: 8px;
  --sidebar: 240px;
  --font: 'Source Sans 3', system-ui, sans-serif;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body.admin-body { font-family: var(--font); background: var(--bg); color: var(--text); line-height: 1.5; }
a { color: var(--navy); text-decoration: none; }
a:hover { color: var(--accent); }

.admin-shell { display: flex; min-height: 100vh; }
.admin-sidebar {
  width: var(--sidebar);
  background: var(--navy);
  color: #fff;
  display: flex;
  flex-direction: column;
  position: fixed;
  inset: 0 auto 0 0;
  overflow-y: auto;
}
.admin-brand {
  display: flex;
  align-items: center;
  gap: .6rem;
  padding: 1.25rem 1rem;
  color: #fff !important;
  font-weight: 700;
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.admin-brand .mark {
  width: 32px; height: 32px; background: var(--accent);
  display: grid; place-items: center; border-radius: 4px; font-weight: 900;
}
.admin-sidebar nav { padding: .75rem 0; flex: 1; }
.admin-sidebar nav a {
  display: block;
  padding: .6rem 1.15rem;
  color: rgba(255,255,255,.8);
  font-size: .9rem;
  font-weight: 500;
  border-left: 3px solid transparent;
}
.admin-sidebar nav a:hover,
.admin-sidebar nav a.active {
  background: rgba(255,255,255,.08);
  color: #fff;
  border-left-color: var(--accent);
}
.admin-user {
  padding: 1rem;
  font-size: .85rem;
  border-top: 1px solid rgba(255,255,255,.1);
  color: rgba(255,255,255,.7);
}
.admin-user small { opacity: .6; text-transform: uppercase; letter-spacing: .04em; }

.admin-main { margin-left: var(--sidebar); flex: 1; min-width: 0; }
.admin-top {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  padding: 1rem 1.5rem;
  position: sticky; top: 0; z-index: 10;
}
.admin-top h1 { font-size: 1.25rem; font-weight: 700; }
.admin-content { padding: 1.5rem; }

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.stat-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.15rem;
}
.stat-card .num { font-size: 1.75rem; font-weight: 700; color: var(--navy); }
.stat-card .label { font-size: .8rem; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin-bottom: 1.25rem;
}
.card h2 { font-size: 1.05rem; margin-bottom: 1rem; }

.table-wrap { overflow-x: auto; }
table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: .9rem;
}
table.data th, table.data td {
  text-align: left;
  padding: .7rem .75rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
table.data th {
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--muted);
  background: #f8fafc;
}
table.data tr:hover td { background: #fafbfc; }

.badge {
  display: inline-block;
  font-size: .7rem;
  font-weight: 700;
  padding: .15rem .45rem;
  border-radius: 3px;
  background: #e2e8f0;
}
.badge.ok { background: #d1fae5; color: #065f46; }
.badge.warn { background: #fef3c7; color: #92400e; }
.badge.bad { background: #fee2e2; color: #991b1b; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  padding: .5rem 1rem;
  border-radius: 6px;
  font-weight: 600;
  font-size: .875rem;
  border: 1px solid transparent;
  cursor: pointer;
  background: var(--navy);
  color: #fff;
  text-decoration: none;
}
.btn:hover { background: #1a3a5c; color: #fff; }
.btn-accent { background: var(--accent); }
.btn-accent:hover { background: #9e1830; color: #fff; }
.btn-outline { background: #fff; border-color: var(--border); color: var(--text); }
.btn-outline:hover { border-color: var(--navy); color: var(--navy); }
.btn-sm { padding: .3rem .65rem; font-size: .8rem; }
.btn-danger { background: #dc2626; }
.actions { display: flex; flex-wrap: wrap; gap: .35rem; }

.form-row { margin-bottom: 1rem; }
.form-row label { display: block; font-weight: 600; font-size: .85rem; margin-bottom: .35rem; }
.form-row input, .form-row select, .form-row textarea {
  width: 100%;
  padding: .6rem .75rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font: inherit;
  background: #fff;
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus {
  outline: none;
  border-color: #3b82f6;
  box-shadow: 0 0 0 3px rgba(59,130,246,.15);
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
@media (max-width: 700px) { .form-grid { grid-template-columns: 1fr; } }
.form-check { display: flex; align-items: center; gap: .5rem; margin: .5rem 0; }
.form-check input { width: auto; }
.form-actions { display: flex; gap: .5rem; flex-wrap: wrap; margin-top: 1rem; }

.alert {
  padding: .75rem 1rem;
  border-radius: 6px;
  margin-bottom: 1rem;
  font-size: .9rem;
}
.alert-success { background: #d1fae5; color: #065f46; }
.alert-error { background: #fee2e2; color: #991b1b; }

/* Login */
.login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: linear-gradient(145deg, #0f2744, #1e4a7a);
  padding: 1rem;
}
.login-box {
  background: #fff;
  width: min(100%, 400px);
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 20px 50px rgba(0,0,0,.25);
}
.login-box h1 { font-size: 1.4rem; margin-bottom: .25rem; color: var(--navy); }
.login-box .sub { color: var(--muted); font-size: .9rem; margin-bottom: 1.5rem; }
.login-box .btn { width: 100%; justify-content: center; margin-top: .5rem; }

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

@media (max-width: 800px) {
  .admin-sidebar { width: 100%; position: relative; }
  .admin-shell { flex-direction: column; }
  .admin-main { margin-left: 0; }
  .admin-sidebar nav { display: flex; flex-wrap: wrap; }
  .admin-sidebar nav a { border-left: 0; border-bottom: 2px solid transparent; }
  .admin-sidebar nav a.active { border-bottom-color: var(--accent); }
}