/* =====================================================================
   Bracket Arena — Admin Dashboard Styles
   ===================================================================== */

.admin-body { min-height: 100vh; }

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

.admin-sidebar {
  width: 240px;
  flex-shrink: 0;
  background: var(--bg-1);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 22px 16px;
  position: sticky;
  top: 0;
  height: 100vh;
}
.admin-brand { display: flex; align-items: center; gap: 10px; padding: 0 8px 24px; }
.brand-name { font-weight: 800; font-size: 17px; }

.admin-nav { display: flex; flex-direction: column; gap: 4px; flex: 1; }
.nav-link {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px; border-radius: var(--radius-sm);
  color: var(--text-1); font-size: 14px; font-weight: 600;
}
.nav-link:hover { background: var(--bg-2); text-decoration: none; color: var(--text-0); }
.nav-link.active { background: var(--accent-gradient); color: #fff; }
.nav-icon { width: 20px; text-align: center; }

.admin-user {
  border-top: 1px solid var(--border);
  padding-top: 16px;
  display: flex; flex-direction: column; gap: 10px;
}
.admin-user-info { display: flex; align-items: center; gap: 10px; font-size: 13.5px; color: var(--text-1); }
.admin-user-avatar {
  width: 30px; height: 30px; border-radius: 50%;
  background: var(--accent-gradient); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 13px;
}
.btn-logout {
  font-size: 13px; color: var(--text-2); text-align: center;
  padding: 8px; border-radius: var(--radius-sm); border: 1px solid var(--border);
}
.btn-logout:hover { background: var(--bg-2); color: var(--text-0); text-decoration: none; }

.admin-main { flex: 1; padding: 28px 32px; max-width: 1400px; }

.page-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 22px; flex-wrap: wrap; }
.page-head h1 { font-size: 24px; }
.page-sub { color: var(--text-2); font-size: 13.5px; margin: 0; }
.page-actions { display: flex; gap: 10px; flex-wrap: wrap; }

.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 22px; }
.stat-card {
  background: var(--bg-2); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 20px; box-shadow: var(--shadow-card);
}
.stat-value { display: block; font-size: 30px; font-weight: 800; }
.stat-label { font-size: 12.5px; color: var(--text-2); text-transform: uppercase; letter-spacing: .04em; }
.stat-live .stat-value { color: var(--accent-green); }
.stat-finished .stat-value { color: var(--accent-blue); }
.stat-draft .stat-value { color: var(--text-2); }

.filter-tabs, .tabs-nav { display: flex; gap: 6px; margin-bottom: 18px; border-bottom: 1px solid var(--border); flex-wrap: wrap; }
.tab, .tab-link {
  padding: 10px 16px; font-size: 13.5px; font-weight: 600; color: var(--text-2);
  border-bottom: 2px solid transparent; margin-bottom: -1px;
}
.tab:hover, .tab-link:hover { color: var(--text-0); text-decoration: none; }
.tab.active, .tab-link.active { color: var(--accent-blue); border-color: var(--accent-blue); }

.table-wrap { overflow-x: auto; }
.data-table { width: 100%; border-collapse: collapse; min-width: 640px; }
.data-table th, .data-table td { padding: 12px 14px; text-align: left; border-bottom: 1px solid var(--border); font-size: 13.5px; }
.data-table th { color: var(--text-2); font-weight: 600; text-transform: uppercase; font-size: 11px; letter-spacing: .05em; }
.data-table tr:hover td { background: rgba(255,255,255,.015); }
.actions-cell { display: flex; gap: 6px; flex-wrap: wrap; white-space: nowrap; }
.muted-cell { color: var(--text-2); font-size: 12.5px; max-width: 240px; }
.link { font-size: 13px; }

.preview-thumb { display: block; width: 64px; height: 64px; object-fit: cover; border-radius: var(--radius-sm); margin-top: 6px; border: 1px solid var(--border); }
.preview-banner { width: 100%; max-width: 260px; height: 80px; }
.participant-thumb { width: 36px; height: 36px; border-radius: 8px; object-fit: cover; border: 1px solid var(--border); background: var(--bg-3); }

.score-entry-row { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.score-entry-name { font-weight: 700; font-size: 15px; flex: 1; }
.score-input { width: 80px; text-align: center; font-size: 18px; font-weight: 700; }

@media (max-width: 900px) {
  .admin-shell { flex-direction: column; }
  .admin-sidebar { width: 100%; height: auto; position: static; flex-direction: row; align-items: center; flex-wrap: wrap; }
  .admin-nav { flex-direction: row; flex-wrap: wrap; }
  .admin-user { border-top: none; flex-direction: row; align-items: center; }
  .stat-grid { grid-template-columns: 1fr 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .admin-main { padding: 20px; }
}