/* ============================================================
   Admin panel CSS
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0f0f1a;
  --bg-soft: #181828;
  --surface: #1f1f33;
  --surface-hover: #282844;
  --border: #2e2e4a;
  --border-soft: #232338;
  --text: #e4e4f0;
  --text-soft: #a0a0b8;
  --text-dim: #6c6c85;
  --primary: #7c5cff;
  --primary-hover: #6940ff;
  --primary-soft: rgba(124, 92, 255, 0.15);
  --accent: #00d4ff;
  --danger: #ff4d6d;
  --danger-soft: rgba(255, 77, 109, 0.15);
  --success: #4ade80;
  --success-soft: rgba(74, 222, 128, 0.15);
  --warning: #fbbf24;
  --warning-soft: rgba(251, 191, 36, 0.15);
  --gradient-primary: linear-gradient(135deg, #7c5cff 0%, #00d4ff 100%);
  --gradient-danger: linear-gradient(135deg, #ff4d6d 0%, #ff8a3d 100%);
  --gradient-success: linear-gradient(135deg, #4ade80 0%, #00d4ff 100%);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --shadow-md: 0 4px 12px rgba(0,0,0,0.15);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.25);
  --transition: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* Header */
.admin-header {
  background: var(--bg-soft); border-bottom: 1px solid var(--border);
  padding: 16px 24px; display: flex; align-items: center; justify-content: space-between;
  position: sticky; top: 0; z-index: 100; backdrop-filter: blur(10px);
}
.admin-brand { display: flex; align-items: center; gap: 12px; font-size: 1.2rem; font-weight: 700; }
.admin-brand-icon {
  width: 36px; height: 36px; border-radius: var(--radius-sm);
  background: var(--gradient-primary); display: flex; align-items: center; justify-content: center;
  color: #fff; box-shadow: 0 0 24px rgba(124, 92, 255, 0.4);
}
.admin-brand-sub { font-size: 0.75rem; color: var(--text-dim); font-weight: 400; }
.admin-header-actions { display: flex; gap: 8px; align-items: center; }
.admin-back-btn { padding: 8px 14px; background: var(--surface); border: 1px solid var(--border); color: var(--text); border-radius: var(--radius-sm); cursor: pointer; text-decoration: none; font-size: 0.85rem; display: inline-flex; align-items: center; gap: 6px; transition: var(--transition); }
.admin-back-btn:hover { background: var(--surface-hover); }

/* Layout */
.admin-container { max-width: 1400px; margin: 0 auto; padding: 24px; }

.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 24px; overflow-x: auto; }
.tab {
  padding: 12px 20px; background: none; border: none; color: var(--text-soft);
  cursor: pointer; font-size: 0.9rem; font-weight: 500; transition: var(--transition);
  border-bottom: 2px solid transparent; font-family: inherit; white-space: nowrap;
}
.tab:hover { color: var(--text); }
.tab.active { color: var(--primary); border-bottom-color: var(--primary); }

.tab-content { display: none; }
.tab-content.active { display: block; animation: fadeIn 200ms ease; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

/* Stats grid */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; margin-bottom: 24px; }
.stat-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-md);
  padding: 20px; transition: var(--transition); position: relative; overflow: hidden;
}
.stat-card:hover { border-color: var(--primary); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.stat-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--gradient-primary);
}
.stat-card.success::before { background: var(--gradient-success); }
.stat-card.warning::before { background: var(--gradient-danger); }
.stat-card.danger::before { background: var(--gradient-danger); }
.stat-icon { font-size: 1.4rem; color: var(--primary); margin-bottom: 8px; }
.stat-card.success .stat-icon { color: var(--success); }
.stat-card.warning .stat-icon { color: var(--warning); }
.stat-card.danger .stat-icon { color: var(--danger); }
.stat-label { font-size: 0.78rem; color: var(--text-soft); margin-bottom: 4px; text-transform: uppercase; letter-spacing: 0.5px; }
.stat-value { font-size: 1.8rem; font-weight: 700; line-height: 1.2; }
.stat-trend { font-size: 0.78rem; margin-top: 6px; display: flex; align-items: center; gap: 4px; }
.stat-trend.up { color: var(--success); }
.stat-trend.down { color: var(--danger); }
.stat-trend.neutral { color: var(--text-dim); }

/* Charts */
.chart-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 24px; }
.chart-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 20px; }
.chart-title { font-size: 1rem; font-weight: 600; margin-bottom: 16px; display: flex; align-items: center; gap: 8px; }
.chart-title i { color: var(--primary); }
.chart-container { height: 280px; position: relative; }

@media (max-width: 1024px) {
  .chart-row { grid-template-columns: 1fr; }
}

/* Table */
.table-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-md); overflow: hidden; }
.table-header { padding: 16px 20px; border-bottom: 1px solid var(--border); font-weight: 600; display: flex; align-items: center; gap: 8px; }
table { width: 100%; border-collapse: collapse; }
th { padding: 12px 16px; text-align: left; font-size: 0.78rem; color: var(--text-soft); text-transform: uppercase; letter-spacing: 0.5px; border-bottom: 1px solid var(--border); background: var(--bg-soft); }
td { padding: 12px 16px; font-size: 0.88rem; border-bottom: 1px solid var(--border-soft); }
tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--surface-hover); }
td .badge { display: inline-flex; padding: 3px 10px; border-radius: 999px; font-size: 0.72rem; font-weight: 600; }
.badge.admin { background: var(--warning-soft); color: var(--warning); }
.badge.banned { background: var(--danger-soft); color: var(--danger); }
.badge.active { background: var(--success-soft); color: var(--success); }
.btn-sm { padding: 4px 10px; font-size: 0.8rem; }
.btn-danger-sm { background: var(--danger-soft); color: var(--danger); border: 1px solid var(--danger); border-radius: var(--radius-sm); cursor: pointer; padding: 4px 10px; font-size: 0.8rem; transition: var(--transition); }
.btn-danger-sm:hover { background: var(--danger); color: #fff; }
.btn-success-sm { background: var(--success-soft); color: var(--success); border: 1px solid var(--success); border-radius: var(--radius-sm); cursor: pointer; padding: 4px 10px; font-size: 0.8rem; transition: var(--transition); }
.btn-success-sm:hover { background: var(--success); color: #111; }

/* Audit log table */
.audit-action-cell { font-family: var(--font-mono); font-size: 0.78rem; }
.mono { font-family: var(--font-mono); font-size: 0.82rem; }

/* Loading state */
.loading { display: flex; align-items: center; justify-content: center; padding: 40px; color: var(--text-dim); }
.loading .spinner { width: 24px; height: 24px; border: 2px solid var(--border); border-top-color: var(--primary); border-radius: 50%; animation: spin 0.8s linear infinite; margin-right: 10px; }
@keyframes spin { from { transform: rotate(0); } to { transform: rotate(360deg); } }

/* Toast */
.toast-container { position: fixed; bottom: 20px; right: 20px; z-index: 2000; display: flex; flex-direction: column; gap: 8px; }
.toast { background: var(--surface); color: var(--text); padding: 12px 16px; border-radius: var(--radius-sm); border: 1px solid var(--border); box-shadow: var(--shadow-md); font-size: 0.85rem; min-width: 200px; animation: toastIn 200ms ease; border-left: 3px solid var(--primary); }
.toast.success { border-left-color: var(--success); }
.toast.error { border-left-color: var(--danger); }
@keyframes toastIn { from { opacity: 0; transform: translateX(20px); } to { opacity: 1; transform: translateX(0); } }

/* Unauthorized */
.unauthorized { display: flex; align-items: center; justify-content: center; min-height: 80vh; flex-direction: column; gap: 16px; }
.unauthorized i { font-size: 4rem; color: var(--danger); }
.unauthorized h1 { font-size: 1.5rem; }
.unauthorized p { color: var(--text-soft); }