:root {
  --bg: #071428;
  --panel: #0e2444;
  --panel2: #143056;
  --line: #23466f;
  --text: #e8edf7;
  --muted: #8b97ad;
  --blue: #2E9FD6;
  --blue2: #5EC8F0;
  --gold: #E8B923;
  --ok: #22c55e;
  --err: #ef4444;
  --radius: 12px;
  --side: 260px;
  --font: "DM Sans", system-ui, sans-serif;
  --display: "Libre Baskerville", Georgia, serif;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: var(--font); background: var(--bg); color: var(--text); min-height: 100vh; }
a { color: var(--blue2); text-decoration: none; }
a:hover { text-decoration: underline; }
.admin-shell { display: flex; min-height: 100vh; }
.admin-side {
  width: var(--side); background: var(--panel); border-right: 1px solid var(--line);
  display: flex; flex-direction: column; position: sticky; top: 0; height: 100vh; overflow: auto; flex-shrink: 0;
}
.admin-brand { padding: 1.1rem 1.15rem; border-bottom: 1px solid var(--line); }
.admin-brand strong { font-family: var(--display); font-size: 1.15rem; display: block; }
.admin-brand small { color: var(--muted); font-size: .75rem; }
.admin-nav { padding: .75rem .6rem 1.5rem; flex: 1; }
.nav-group { margin-bottom: .35rem; }
.nav-group-btn {
  width: 100%; display: flex; align-items: center; justify-content: space-between;
  background: transparent; border: 0; color: var(--text); font: inherit; font-weight: 700;
  font-size: .82rem; letter-spacing: .04em; text-transform: uppercase; padding: .7rem .75rem;
  border-radius: 10px; cursor: pointer; text-align: left;
}
.nav-group-btn:hover { background: var(--panel2); }
.nav-group-body { display: none; padding: .15rem 0 .4rem .35rem; }
.nav-group.is-open .nav-group-body { display: block; }
.nav-group-body a {
  display: block; padding: .55rem .75rem; border-radius: 8px; color: var(--muted);
  font-size: .9rem; font-weight: 500; text-decoration: none;
}
.nav-group-body a:hover { background: var(--panel2); color: var(--text); text-decoration: none; }
.nav-group-body a.is-active { background: rgba(46,159,214,.2); color: #fff; border: 1px solid rgba(46,159,214,.35); }
.admin-side-foot { padding: .85rem 1rem; border-top: 1px solid var(--line); font-size: .82rem; color: var(--muted); }
.admin-side-foot a { color: var(--muted); margin-right: .75rem; }
.admin-main { flex: 1; min-width: 0; padding: 1.5rem 1.75rem 2.5rem; }
.admin-top { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: .75rem; margin-bottom: 1.25rem; }
.admin-top h1 { margin: 0; font-family: var(--display); font-size: 1.7rem; }
.admin-top p { margin: .2rem 0 0; color: var(--muted); font-size: .92rem; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.15rem 1.2rem; margin-bottom: 1rem; }
.card h2 { margin: 0 0 .85rem; font-size: 1rem; text-transform: uppercase; letter-spacing: .04em; }
.grid-stats { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: .75rem; }
.stat { background: var(--panel2); border: 1px solid var(--line); border-radius: 10px; padding: .9rem; }
.stat strong { display: block; font-size: 1.6rem; color: var(--blue2); }
.stat span { font-size: .78rem; color: var(--muted); font-weight: 600; text-transform: uppercase; }
table.data { width: 100%; border-collapse: collapse; font-size: .9rem; }
table.data th, table.data td { text-align: left; padding: .65rem .5rem; border-bottom: 1px solid var(--line); vertical-align: top; }
table.data th { color: var(--muted); font-size: .75rem; text-transform: uppercase; letter-spacing: .05em; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .35rem;
  padding: .55rem .95rem; border-radius: 8px; border: 1px solid var(--line);
  background: var(--panel2); color: var(--text); font-weight: 600; font-size: .85rem; cursor: pointer; text-decoration: none;
}
.btn:hover { text-decoration: none; border-color: var(--blue2); color: #fff; }
.btn-primary { background: var(--blue); border-color: var(--blue); color: #fff; }
.btn-danger { background: rgba(239,68,68,.15); border-color: rgba(239,68,68,.4); color: #fecaca; }
.btn-sm { padding: .35rem .65rem; font-size: .78rem; }
.btn-row { display: flex; flex-wrap: wrap; gap: .5rem; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: .9rem 1rem; }
.form-grid .full { grid-column: 1 / -1; }
label.field { display: flex; flex-direction: column; gap: .35rem; font-size: .78rem; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
label.field input, label.field select, label.field textarea {
  font: inherit; font-weight: 500; text-transform: none; letter-spacing: normal; color: var(--text);
  background: var(--bg); border: 1px solid var(--line); border-radius: 8px; padding: .65rem .75rem;
}
label.field textarea { min-height: 120px; resize: vertical; }
.flash { padding: .75rem 1rem; border-radius: 10px; margin-bottom: 1rem; font-size: .9rem; }
.flash.ok { background: rgba(34,197,94,.12); border: 1px solid rgba(34,197,94,.35); color: #86efac; }
.flash.err { background: rgba(239,68,68,.12); border: 1px solid rgba(239,68,68,.35); color: #fecaca; }
.login-wrap { min-height: 100vh; display: grid; place-items: center; padding: 1.5rem; }
.login-card { width: min(100%, 420px); background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 1.75rem; }
.login-card h1 { font-family: var(--display); margin: 0 0 .35rem; }
.muted { color: var(--muted); }
.help { font-size: .8rem; color: var(--muted); margin-top: .25rem; font-weight: 500; text-transform: none; letter-spacing: normal; }
.menu-toggle { display: none; margin-bottom: .75rem; }
@media (max-width: 900px) {
  .admin-shell { flex-direction: column; }
  .admin-side { position: relative; width: 100%; height: auto; }
  .admin-side.is-collapsed .admin-nav { display: none; }
  .menu-toggle { display: inline-flex; }
  .form-grid { grid-template-columns: 1fr; }
}