:root {
  --admin-bg: #f4f7fb;
  --admin-ink: #0c1220;
  --admin-muted: #5b6575;
  --admin-card: #ffffff;
  --admin-line: #d5deea;
  --admin-accent: #1d4ed8;
  --admin-danger: #8f2f2f;
}

* { box-sizing: border-box; }
body.admin-body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, sans-serif;
  background: var(--admin-bg);
  color: var(--admin-ink);
  min-height: 100vh;
}
.admin-shell { display: grid; min-height: 100vh; }
@media (min-width: 900px) {
  .admin-shell { grid-template-columns: 240px 1fr; }
}
.admin-sidebar {
  background: #07080d;
  color: #fff;
  padding: 1.25rem;
}
.admin-sidebar a {
  display: block;
  color: rgba(255,255,255,.78);
  text-decoration: none;
  padding: .65rem .75rem;
  border-radius: .5rem;
  margin-bottom: .2rem;
}
.admin-sidebar a:hover,
.admin-sidebar a.active { background: rgba(255,255,255,.08); color: #fff; }
.admin-brand { font-weight: 700; margin-bottom: 1.25rem; color: #fff; }
.admin-main { padding: 1.25rem; }
.admin-top {
  display: flex; justify-content: space-between; align-items: center;
  gap: 1rem; margin-bottom: 1.25rem; flex-wrap: wrap;
}
.admin-card {
  background: var(--admin-card);
  border: 1px solid var(--admin-line);
  border-radius: .9rem;
  padding: 1rem;
  margin-bottom: 1rem;
}
.admin-grid { display: grid; gap: 1rem; }
@media (min-width: 700px) {
  .admin-grid.metrics { grid-template-columns: repeat(4, 1fr); }
  .admin-grid.two { grid-template-columns: 1fr 1fr; }
}
.metric h3 { margin: 0; font-size: 1.6rem; }
.metric p { margin: .35rem 0 0; color: var(--admin-muted); font-size: .9rem; }
table.admin-table { width: 100%; border-collapse: collapse; font-size: .92rem; }
table.admin-table th, table.admin-table td {
  border-bottom: 1px solid var(--admin-line);
  padding: .7rem .4rem;
  text-align: right;
  vertical-align: top;
}
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 2.4rem; padding: .45rem .9rem; border-radius: .6rem;
  border: 1px solid transparent; text-decoration: none; cursor: pointer;
  font: inherit; background: var(--admin-accent); color: #fff;
}
.btn-ghost { background: #fff; color: var(--admin-ink); border-color: var(--admin-line); }
.btn-danger { background: var(--admin-danger); }
.alert { padding: .8rem 1rem; border-radius: .6rem; margin-bottom: 1rem; }
.alert-ok { background: #e7f5ee; color: #1f5d3f; }
.alert-err { background: #fdecec; color: #812; }
label { display: grid; gap: .35rem; margin-bottom: .85rem; font-size: .92rem; }
input, select, textarea {
  width: 100%; padding: .65rem .75rem; border: 1px solid var(--admin-line);
  border-radius: .55rem; font: inherit; background: #fff;
}
.login-wrap {
  min-height: 100vh; display: grid; place-items: center; padding: 1rem;
}
.login-card { width: min(100%, 24rem); }
.badge {
  display: inline-block; padding: .15rem .5rem; border-radius: 999px;
  background: #e8f0ed; color: var(--admin-accent); font-size: .78rem;
}
.actions { display: flex; flex-wrap: wrap; gap: .4rem; }
.muted { color: var(--admin-muted); }