:root {
  --bg: #0b1220;
  --panel: #121a2b;
  --panel-2: #1a2438;
  --text: #edf2f7;
  --muted: #a0aec0;
  --primary: #60a5fa;
  --accent: #34d399;
  --danger: #f87171;
  --border: rgba(255,255,255,.08);
  --shadow: 0 10px 30px rgba(0,0,0,.25);
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, system-ui, Arial, sans-serif;
  background: linear-gradient(180deg, #08101c, #0f172a 30%, #111827);
  color: var(--text);
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.app-shell { min-height: 100vh; }
.topbar, .container, .nav-grid { width: min(1100px, calc(100% - 24px)); margin: 0 auto; }
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 0 16px;
}
.brand { font-weight: 800; font-size: 1.4rem; }
.subtitle { margin: 4px 0 0; color: var(--muted); font-size: .9rem; }
.topbar-actions { display: flex; gap: 10px; align-items: center; }
.nav-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 10px;
  margin-bottom: 16px;
}
.nav-item, .card, .hero, .form-card, .post-card, .stat-card, .list-item {
  background: rgba(18,26,43,.9); border: 1px solid var(--border); border-radius: 18px; box-shadow: var(--shadow);
}
.nav-item { padding: 14px; text-align: center; color: var(--muted); }
.nav-item.active, .nav-item:hover { color: var(--text); border-color: rgba(96,165,250,.4); }
.container { padding-bottom: 40px; }
.hero { padding: 28px; display: grid; gap: 18px; }
.hero-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 16px; }
.card-grid { display: grid; grid-template-columns: repeat(auto-fit,minmax(220px,1fr)); gap: 16px; }
.card, .form-card, .post-card, .stat-card { padding: 20px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  background: var(--primary); color: white; border: 0; border-radius: 12px; padding: 12px 16px; cursor: pointer;
}
.btn-secondary { background: var(--panel-2); }
.btn-danger { background: var(--danger); }
.badge { background: rgba(255,255,255,.08); border: 1px solid var(--border); padding: 8px 12px; border-radius: 999px; }
.muted { color: var(--muted); }
.alert { padding: 14px 16px; border-radius: 14px; margin-bottom: 16px; }
.alert-success { background: rgba(52,211,153,.15); border: 1px solid rgba(52,211,153,.4); }
.alert-error { background: rgba(248,113,113,.15); border: 1px solid rgba(248,113,113,.4); }
label { display:block; margin-bottom: 6px; font-weight:600; }
input, textarea, select {
  width: 100%; padding: 12px 14px; background: #0b1220; color: var(--text); border: 1px solid var(--border);
  border-radius: 12px; margin-bottom: 14px;
}
textarea { min-height: 110px; resize: vertical; }
.form-row { display:grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.post-card img { border-radius: 14px; aspect-ratio: 4/3; object-fit: cover; margin-bottom: 12px; }
.post-meta { display:flex; justify-content: space-between; gap: 12px; color: var(--muted); font-size: .9rem; }
.inline-actions { display:flex; gap: 10px; flex-wrap: wrap; }
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { text-align:left; padding: 12px; border-bottom: 1px solid var(--border); }
.table th { color: var(--muted); }
.auth-wrap { width: min(500px, calc(100% - 24px)); margin: 40px auto; }
.center { text-align:center; }
.kpi { font-size: 2rem; font-weight: 800; margin: 0; }
.install-banner { display:none; margin: 0 auto 16px; width:min(1100px, calc(100% - 24px)); }
.list-stack { display:grid; gap: 12px; }
.list-item { padding: 16px; }
.small { font-size: .9rem; }
@media (max-width: 760px) {
  .hero-grid, .form-row { grid-template-columns: 1fr; }
  .topbar { align-items:flex-start; flex-direction:column; gap: 14px; }
}