:root {
  --base-950: #0b0f14;
  --base-900: #101720;
  --base-850: #131b26;
  --base-800: #182230;
  --base-700: #243040;
  --base-600: #3a4a5e;
  --base-500: #5a6d82;
  --base-400: #8496a8;
  --base-300: #aebbc8;
  --base-100: #e7ecf1;
  --accent: #3dd6c4;
  --accent-soft: #2aa89a;
  --warn: #f0b429;
  --danger: #ef5a5a;
  --radius: 10px;
  --glass-bg: rgba(19, 32, 46, 0.60);
  --glass-border: rgba(61, 214, 196, 0.22);
  --glass-blur: blur(16px);
  --teal-glow: 0 0 0 1px rgba(61,214,196,0.16), 0 8px 28px rgba(6,16,22,0.4), 0 0 20px rgba(61,214,196,0.12);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, sans-serif;
  color: var(--base-100);
  background-color: var(--base-950);
  background-image: radial-gradient(ellipse 800px 480px at 10% -10%, rgba(61,214,196,0.14), transparent 60%);
  background-repeat: no-repeat;
}
a { color: inherit; text-decoration: none; }

.shell { display: flex; min-height: 100vh; }

.sidebar {
  width: 230px;
  flex-shrink: 0;
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border-right: 1px solid var(--glass-border);
  display: flex;
  flex-direction: column;
}
.brand { display: flex; align-items: center; gap: 10px; padding: 20px 18px; }
.brand-mark {
  width: 32px; height: 32px; border-radius: 8px;
  background: rgba(61,214,196,0.15); color: var(--accent);
  display: flex; align-items: center; justify-content: center; font-weight: 700;
}
.brand-name { font-size: 14px; font-weight: 600; }
.brand-sub { font-size: 11px; color: var(--base-500); }

.sidebar nav { flex: 1; padding: 8px 12px; display: flex; flex-direction: column; gap: 2px; }
.sidebar nav a {
  padding: 9px 12px; border-radius: 8px; font-size: 14px; font-weight: 500;
  color: var(--base-400);
}
.sidebar nav a:hover { background: var(--base-800); color: var(--base-100); }
.sidebar nav a.active { background: rgba(61,214,196,0.12); color: var(--accent); }

.sidebar-user {
  display: flex; align-items: center; gap: 10px;
  padding: 14px; border-top: 1px solid var(--base-800);
}
.avatar {
  width: 32px; height: 32px; border-radius: 999px; background: var(--base-700);
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; font-weight: 600; text-transform: uppercase; flex-shrink: 0;
}
.sidebar-user .name { font-size: 13px; font-weight: 500; }
.sidebar-user .role { font-size: 11px; color: var(--base-500); }
.logout-link { margin-left: auto; color: var(--base-500); font-size: 16px; }
.logout-link:hover { color: var(--danger); }

.content { flex: 1; padding: 32px 40px; max-width: 1100px; }

.page-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; margin-bottom: 24px; }
.page-header h1 { font-size: 20px; margin: 0 0 4px; }
.page-header p { margin: 0; color: var(--base-400); font-size: 14px; }

.card {
  background: var(--glass-bg); -webkit-backdrop-filter: var(--glass-blur); backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border); box-shadow: var(--teal-glow);
  border-radius: var(--radius); padding: 18px;
}
@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .card, .sidebar { background: var(--base-900); }
}

.grid { display: grid; gap: 16px; }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-6 { grid-template-columns: repeat(6, 1fr); }
@media (max-width: 900px) { .grid-cols-6 { grid-template-columns: repeat(3, 1fr); } }

.stat-label { font-size: 11px; text-transform: uppercase; letter-spacing: 0.04em; color: var(--base-400); }
.stat-value { font-size: 24px; font-weight: 600; margin-top: 6px; }

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th { text-align: left; font-size: 11px; text-transform: uppercase; color: var(--base-400); padding: 10px 14px; border-bottom: 1px solid var(--base-800); }
td { padding: 10px 14px; border-bottom: 1px solid rgba(24,34,48,0.6); color: var(--base-300); vertical-align: middle; }
tr:last-child td { border-bottom: none; }

.badge { display: inline-flex; align-items: center; padding: 2px 9px; border-radius: 999px; font-size: 11px; font-weight: 600; }
.badge-accent { background: rgba(61,214,196,0.15); color: var(--accent); }
.badge-warn { background: rgba(240,180,41,0.15); color: var(--warn); }
.badge-danger { background: rgba(239,90,90,0.15); color: var(--danger); }
.badge-muted { background: var(--base-700); color: var(--base-300); }

.btn {
  display: inline-flex; align-items: center; gap: 6px; border: none; border-radius: 8px;
  padding: 7px 14px; font-size: 13px; font-weight: 600; cursor: pointer; font-family: inherit;
}
.btn-primary { background: var(--accent); color: #06201c; }
.btn-primary:hover { background: var(--accent-soft); }
.btn-ghost { background: transparent; color: var(--base-300); border: 1px solid var(--base-700); }
.btn-ghost:hover { background: var(--base-800); }
.btn-danger { background: rgba(239,90,90,0.15); color: var(--danger); }
.btn-danger:hover { background: rgba(239,90,90,0.25); }
.btn-sm { padding: 5px 10px; font-size: 12px; }

input, select, textarea {
  background: var(--base-850); border: 1px solid var(--base-700); border-radius: 8px;
  color: var(--base-100); padding: 8px 11px; font-size: 14px; font-family: inherit;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); border-color: transparent; }
label { display: block; font-size: 12px; color: var(--base-400); margin-bottom: 5px; font-weight: 500; }

.flash { background: rgba(61,214,196,0.12); color: var(--accent); padding: 10px 14px; border-radius: 8px; margin-bottom: 18px; font-size: 14px; }
.flash-error { background: rgba(239,90,90,0.12); color: var(--danger); }

.tabs { display: flex; gap: 6px; margin-bottom: 16px; }
.tabs a { padding: 7px 13px; border-radius: 8px; font-size: 13px; font-weight: 500; color: var(--base-400); }
.tabs a.active { background: rgba(61,214,196,0.15); color: var(--accent); }
.tabs a:hover:not(.active) { background: var(--base-800); }

.form-row { display: flex; gap: 10px; margin-bottom: 14px; align-items: flex-end; }
.form-row > div { flex: 1; }

.muted { color: var(--base-500); }
.mono { font-family: "SF Mono", Consolas, monospace; font-size: 12px; }
.section { margin-bottom: 28px; }
.login-wrap { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.login-card { width: 340px; }
.login-logo { display: flex; flex-direction: column; align-items: center; margin-bottom: 24px; }