/* ADMIN PANEL STYLES */
.admin-main { min-height: calc(100vh - var(--nav-h)); background: var(--bg-base); padding-bottom: 60px; }
.admin-header { background: linear-gradient(135deg, #0d1117, #0f1923); border-bottom: 1px solid rgba(0,212,255,0.15); padding: 36px 0 30px; position: relative; }
.admin-header::after { content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 1px; background: linear-gradient(90deg, transparent, rgba(0,212,255,0.5), transparent); }
.admin-header-content { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.admin-title { font-size: 2rem; font-weight: 800; color: var(--text-primary); display: flex; align-items: center; gap: 14px; margin: 0 0 8px; }
.admin-title i { color: var(--accent); }
.admin-subtitle { color: var(--text-secondary); font-size: 0.95rem; margin: 0; }
.admin-status-badge { display: flex; align-items: center; gap: 8px; padding: 8px 18px; background: rgba(34,197,94,0.1); border: 1px solid rgba(34,197,94,0.3); border-radius: 50px; font-size: 0.82rem; font-weight: 700; color: #22c55e; }
.admin-status-badge i { font-size: 0.45rem; animation: statusBlink 2s infinite; }
@keyframes statusBlink { 0%,100%{opacity:1} 50%{opacity:0.3} }
.admin-loading, .auth-required-state { padding: 80px 0; text-align: center; }
.loading-content { display: inline-flex; align-items: center; gap: 12px; color: var(--text-secondary); }
.loading-content i { color: var(--accent); font-size: 1.5rem; }
.auth-required-content { max-width: 420px; margin: 0 auto; text-align: center; }
.auth-required-content .empty-icon { font-size: 3.5rem; color: var(--accent); margin-bottom: 20px; opacity: 0.5; display: block; }
.auth-required-content h3 { font-size: 1.5rem; font-weight: 700; margin-bottom: 10px; }
.auth-required-content p { color: var(--text-secondary); margin-bottom: 28px; }

.admin-stats-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin: 32px 0 28px; }
.admin-stat-card { background: var(--bg-surface); border: 1px solid var(--border); border-radius: 18px; padding: 24px 20px; text-align: center; transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s; position: relative; overflow: hidden; }
.admin-stat-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, var(--accent), var(--accent-soft)); opacity: 0; transition: opacity 0.2s; }
.admin-stat-card:hover { border-color: var(--accent-border); transform: translateY(-3px); box-shadow: 0 8px 30px rgba(0,212,255,0.1); }
.admin-stat-card:hover::before { opacity: 1; }
.admin-stat-icon { width: 48px; height: 48px; border-radius: 14px; background: rgba(0,212,255,0.1); border: 1px solid rgba(0,212,255,0.2); display: flex; align-items: center; justify-content: center; margin: 0 auto 14px; font-size: 1.2rem; color: var(--accent); }
.admin-stat-value { font-size: 2.4rem; font-weight: 900; color: var(--text-primary); line-height: 1; margin-bottom: 8px; }
.admin-stat-label { font-size: 0.75rem; color: var(--text-secondary); font-weight: 600; text-transform: uppercase; letter-spacing: 0.8px; }

.admin-tab-bar { display: flex; gap: 4px; background: var(--bg-surface); border: 1px solid var(--border); border-radius: 14px; padding: 5px; margin-bottom: 24px; overflow-x: auto; }
.admin-tab-btn { flex: 1; min-width: 140px; padding: 10px 18px; background: none; border: none; border-radius: 10px; font-size: 0.88rem; font-weight: 600; color: var(--text-secondary); cursor: pointer; display: flex; align-items: center; justify-content: center; gap: 8px; transition: all 0.2s; white-space: nowrap; font-family: var(--font); }
.admin-tab-btn:hover { color: var(--text-primary); background: rgba(255,255,255,0.05); }
.admin-tab-btn.active { background: linear-gradient(135deg, var(--accent), var(--accent-soft)); color: #080c10; font-weight: 700; box-shadow: 0 2px 12px rgba(0,212,255,0.3); border: none; }

.admin-section-header { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 20px; flex-wrap: wrap; }
.admin-section-header h3 { font-size: 1.1rem; font-weight: 700; color: var(--text-primary); margin: 0; }

.admin-search-bar { position: relative; flex: 1; max-width: 320px; }
.search-icon { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); color: var(--text-secondary); font-size: 0.85rem; pointer-events: none; }
.admin-search-input { width: 100%; padding: 9px 14px 9px 36px; background: var(--bg-surface); border: 1px solid var(--border); border-radius: 10px; color: var(--text-primary); font-size: 0.88rem; font-family: var(--font); transition: border-color 0.2s; outline: none; }
.admin-search-input:focus { border-color: var(--accent); }
.admin-search-input::placeholder { color: var(--text-secondary); }
.admin-select { padding: 9px 14px; background: var(--bg-surface); border: 1px solid var(--border); border-radius: 10px; color: var(--text-primary); font-size: 0.88rem; cursor: pointer; outline: none; transition: border-color 0.2s; font-family: var(--font); }
.admin-select:focus { border-color: var(--accent); }

.users-table-container { background: var(--bg-surface); border: 1px solid var(--border); border-radius: 16px; overflow: hidden; overflow-x: auto; }
.users-table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.users-table thead { background: rgba(0,212,255,0.04); border-bottom: 1px solid var(--border); }
.users-table th { padding: 13px 16px; text-align: left; font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; color: var(--text-secondary); white-space: nowrap; }
.users-table td { padding: 14px 16px; border-bottom: 1px solid rgba(255,255,255,0.04); vertical-align: middle; }
.users-table tbody tr:last-child td { border-bottom: none; }
.users-table tbody tr:hover { background: rgba(255,255,255,0.02); }

.user-cell { display: flex; align-items: center; gap: 12px; }
.user-avatar-sm { width: 38px; height: 38px; border-radius: 10px; background: linear-gradient(135deg, var(--accent), var(--accent-soft)); color: #080c10; font-size: 0.82rem; font-weight: 800; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.user-name { font-weight: 600; color: var(--text-primary); font-size: 0.88rem; }
.user-role { font-size: 0.75rem; color: var(--text-secondary); margin-top: 2px; }
.text-muted { color: var(--text-secondary); }
.admin-badge { display: inline-block; padding: 2px 8px; background: rgba(245,158,11,0.15); border: 1px solid rgba(245,158,11,0.3); border-radius: 50px; font-size: 0.68rem; font-weight: 700; color: #f59e0b; margin-left: 6px; vertical-align: middle; }
.course-count-badge { display: inline-flex; align-items: center; justify-content: center; width: 28px; height: 28px; background: rgba(0,212,255,0.1); border: 1px solid rgba(0,212,255,0.2); border-radius: 8px; font-size: 0.85rem; font-weight: 700; color: var(--accent); }
.progress-cell { display: flex; align-items: center; gap: 10px; min-width: 120px; }
.mini-progress-bar { flex: 1; height: 6px; background: var(--border); border-radius: 99px; overflow: hidden; }
.mini-progress-fill { height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent-soft)); border-radius: 99px; transition: width 0.4s ease; }
.table-loading, .table-error { text-align: center; padding: 40px; color: var(--text-secondary); }
.table-error { color: #ef4444; }

.user-actions { display: flex; gap: 6px; align-items: center; }
.btn-action {
    width: 34px; height: 34px;
    border-radius: 9px;
    border: 1px solid rgba(0,212,255,0.2);
    background: rgba(0,212,255,0.05);
    color: rgba(0,212,255,0.7);
    font-size: 0.82rem;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: all 0.18s ease;
    flex-shrink: 0;
}
.btn-action:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(0,212,255,0.12);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,212,255,0.2);
}
.btn-action:active { transform: translateY(0); }
.btn-action.success { border-color: rgba(34,197,94,0.35); color: #22c55e; background: rgba(34,197,94,0.08); }
.btn-action.success:hover { background: rgba(34,197,94,0.18); border-color: #22c55e; box-shadow: 0 4px 12px rgba(34,197,94,0.25); }
.btn-action.warning { border-color: rgba(245,158,11,0.35); color: #f59e0b; background: rgba(245,158,11,0.08); }
.btn-action.warning:hover { background: rgba(245,158,11,0.18); border-color: #f59e0b; box-shadow: 0 4px 12px rgba(245,158,11,0.25); }
.btn-action.danger { border-color: rgba(239,68,68,0.35); color: #ef4444; background: rgba(239,68,68,0.08); }
.btn-action.danger:hover { background: rgba(239,68,68,0.18); border-color: #ef4444; box-shadow: 0 4px 12px rgba(239,68,68,0.25); }

.course-access-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 20px; }
.course-access-card { background: var(--bg-surface); border: 1px solid var(--border); border-radius: 16px; overflow: hidden; transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s; }
.course-access-card:hover { border-color: var(--accent-border); transform: translateY(-3px); box-shadow: 0 8px 30px rgba(0,212,255,0.1); }
.cac-header { padding: 22px 20px; display: flex; align-items: center; gap: 14px; min-height: 90px; }
.cac-icon { font-size: 2rem; flex-shrink: 0; filter: drop-shadow(0 2px 8px rgba(0,0,0,0.4)); }
.cac-title { font-size: 1.05rem; font-weight: 800; color: #fff; text-shadow: 0 1px 4px rgba(0,0,0,0.5); }
.cac-sub { font-size: 0.78rem; color: rgba(255,255,255,0.7); margin-top: 3px; }
.cac-body { padding: 18px 20px 20px; }
.cac-stats { display: grid; grid-template-columns: repeat(3,1fr); background: var(--bg-base); border-radius: 12px; overflow: hidden; border: 1px solid var(--border); margin-bottom: 16px; }
.cac-stat { padding: 14px 8px; text-align: center; border-right: 1px solid var(--border); display: flex; flex-direction: column; align-items: center; gap: 4px; }
.cac-stat:last-child { border-right: none; }
.cac-num { font-size: 1.6rem; font-weight: 900; color: var(--accent); line-height: 1; }
.cac-stat span:last-child { font-size: 0.65rem; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.5px; font-weight: 600; }
.cac-actions { display: flex; gap: 8px; }
.cac-actions .btn-primary, .cac-actions .btn-secondary { flex: 1; justify-content: center; font-size: 0.82rem; padding: 9px 12px; }

.analytics-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 20px; }
.analytics-card { background: var(--bg-surface); border: 1px solid var(--border); border-radius: 16px; padding: 22px; }
.analytics-card h4 { font-size: 0.8rem; font-weight: 700; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 1px; margin: 0 0 18px; display: flex; align-items: center; gap: 8px; }
.analytics-card h4 i { color: var(--accent); }
.analytics-filters { display: flex; gap: 8px; }
.chart-placeholder { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px; padding: 40px 20px; color: var(--text-secondary); font-size: 0.85rem; border: 1px dashed var(--border); border-radius: 10px; }
.chart-placeholder i { font-size: 2rem; opacity: 0.3; }
.activity-item { display: flex; align-items: flex-start; gap: 12px; padding: 10px 0; border-bottom: 1px solid rgba(255,255,255,0.04); }
.activity-item:last-child { border-bottom: none; }
.activity-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); margin-top: 5px; flex-shrink: 0; }
.activity-text { flex: 1; font-size: 0.85rem; color: var(--text-secondary); line-height: 1.4; }
.activity-text strong { color: var(--text-primary); }
.activity-time { font-size: 0.75rem; color: var(--text-secondary); white-space: nowrap; }
.course-progress-stat { margin-bottom: 16px; }
.cps-header { display: flex; justify-content: space-between; margin-bottom: 6px; font-size: 0.88rem; font-weight: 600; }
.cps-sub { font-size: 0.75rem; color: var(--text-secondary); margin-top: 4px; }

.admin-modal { background: var(--bg-surface); border: 1px solid var(--border); border-radius: 20px; width: 90%; max-width: 520px; max-height: 85vh; display: flex; flex-direction: column; overflow: hidden; box-shadow: 0 24px 60px rgba(0,0,0,0.6); animation: adminModalIn 0.25s cubic-bezier(0.34,1.56,0.64,1); }
@keyframes adminModalIn { from { transform: scale(0.9) translateY(20px); opacity: 0; } to { transform: scale(1) translateY(0); opacity: 1; } }
.admin-modal-header { display: flex; align-items: center; justify-content: space-between; padding: 20px 24px; border-bottom: 1px solid var(--border); flex-shrink: 0; }
.admin-modal-header h3 { font-size: 1rem; font-weight: 700; margin: 0; }
.admin-modal-body { padding: 20px 24px; overflow-y: auto; flex: 1; }
.admin-modal-footer { padding: 16px 24px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 10px; flex-shrink: 0; }

.modal-courses-list { display: flex; flex-direction: column; gap: 10px; }
.modal-course-row { display: flex; align-items: center; justify-content: space-between; padding: 12px 16px; background: var(--bg-base); border: 1px solid var(--border); border-radius: 12px; transition: border-color 0.2s; }
.modal-course-row:hover { border-color: var(--accent-border); }
.modal-course-info { display: flex; align-items: center; gap: 12px; font-size: 0.9rem; font-weight: 600; }

.toggle-switch { position: relative; display: inline-block; width: 46px; height: 26px; flex-shrink: 0; }
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.toggle-track { position: absolute; inset: 0; background: rgba(255,255,255,0.1); border-radius: 99px; cursor: pointer; transition: background 0.2s; border: 1px solid rgba(255,255,255,0.15); }
.toggle-track::before { content: ''; position: absolute; width: 20px; height: 20px; left: 2px; top: 2px; background: #fff; border-radius: 50%; transition: transform 0.2s; box-shadow: 0 1px 4px rgba(0,0,0,0.3); }
.toggle-switch input:checked + .toggle-track { background: var(--accent); border-color: var(--accent); }
.toggle-switch input:checked + .toggle-track::before { transform: translateX(20px); }

.detail-grid { display: flex; flex-direction: column; gap: 8px; margin-bottom: 8px; }
.detail-row { display: flex; justify-content: space-between; align-items: center; padding: 10px 14px; background: var(--bg-base); border-radius: 10px; font-size: 0.88rem; }
.detail-label { color: var(--text-secondary); font-weight: 500; }
.detail-course-row { display: flex; align-items: center; gap: 12px; padding: 10px 0; border-bottom: 1px solid rgba(255,255,255,0.04); font-size: 0.88rem; }
.detail-course-row:last-child { border-bottom: none; }

.admin-footer { background: var(--bg-surface); border-top: 1px solid var(--border); padding: 20px 0; margin-top: 40px; }
.admin-footer-content { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.admin-footer-brand p { font-size: 0.8rem; color: var(--text-secondary); margin: 4px 0 0; }
.admin-footer-info { display: flex; gap: 20px; font-size: 0.8rem; color: var(--text-secondary); }

@media (max-width: 900px) { .admin-stats-row { grid-template-columns: repeat(2,1fr); } }
@media (max-width: 480px) { .admin-stats-row { grid-template-columns: 1fr 1fr; gap: 10px; } }
@media (max-width: 768px) {
    .admin-title { font-size: 1.5rem; }
    .admin-tab-btn { min-width: 110px; font-size: 0.82rem; padding: 9px 12px; }
    .users-table th:nth-child(3), .users-table td:nth-child(3) { display: none; }
    .admin-section-header { flex-direction: column; align-items: flex-start; }
    .admin-search-bar { max-width: 100%; width: 100%; }
}
@media (max-width: 500px) {
    .users-table th:nth-child(4), .users-table td:nth-child(4) { display: none; }
    .admin-modal { width: 95%; border-radius: 16px; }
}

/* ═══════════════════════════════════════════════
   DAILY QUESTIONS TAB
═══════════════════════════════════════════════ */
.dq-layout {
  display: grid;
  grid-template-columns: 420px 1fr;
  gap: 24px;
  align-items: start;
}
@media (max-width: 900px) { .dq-layout { grid-template-columns: 1fr; } }

.dq-form-panel, .dq-list-panel {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  overflow: hidden;
}

.dq-panel-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 18px 22px;
  border-bottom: 1px solid var(--border);
  background: rgba(0,212,255,0.03);
}
.dq-panel-header i { color: var(--accent); font-size: 1rem; }
.dq-panel-header h3 { font-size: 1rem; font-weight: 700; color: var(--text-primary); margin: 0; }

.dq-form { padding: 22px; display: flex; flex-direction: column; gap: 18px; }

.dq-field { display: flex; flex-direction: column; gap: 7px; }
.dq-label {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.7px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.dq-label i { color: var(--accent); }

.dq-input {
  padding: 10px 14px;
  background: var(--bg-base);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text-primary);
  font-size: 0.9rem;
  font-family: var(--font);
  outline: none;
  transition: border-color 0.2s;
  width: 100%;
  box-sizing: border-box;
}
.dq-input:focus { border-color: var(--accent); }
.dq-input::placeholder { color: var(--text-secondary); }
.dq-textarea { resize: vertical; min-height: 80px; }

.dq-options-list { display: flex; flex-direction: column; gap: 8px; }
.dq-option-row {
  display: flex;
  align-items: center;
  gap: 8px;
}
.dq-opt-letter {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: rgba(0,212,255,0.1);
  border: 1px solid rgba(0,212,255,0.2);
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.dq-opt-input { flex: 1; }
.dq-radio { display: none; }
.dq-radio-label {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  border: 1.5px solid var(--border);
  background: var(--bg-base);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 0.8rem;
  flex-shrink: 0;
  transition: all 0.15s;
}
.dq-radio:checked + .dq-radio-label {
  background: rgba(34,197,94,0.15);
  border-color: #22c55e;
  color: #22c55e;
}
.dq-radio-label:hover { border-color: #22c55e; color: #22c55e; }

.dq-hint {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin: 4px 0 0;
  display: flex;
  align-items: center;
  gap: 5px;
}
.dq-hint i { color: var(--accent); }

.dq-form-actions { display: flex; flex-direction: column; gap: 10px; }
.dq-auto-btn { width: 100%; justify-content: center; padding: 11px; font-size: 0.9rem; gap: 8px; }
.dq-auto-btn i { color: #a78bfa; }
.dq-submit-btn { width: 100%; justify-content: center; padding: 12px; font-size: 0.95rem; }

/* Scheduled list */
.dq-scheduled-list { padding: 16px; display: flex; flex-direction: column; gap: 12px; max-height: 600px; overflow-y: auto; }

.dq-empty, .dq-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 40px 20px;
  color: var(--text-secondary);
  font-size: 0.88rem;
}
.dq-empty i, .dq-loading i { font-size: 2rem; opacity: 0.3; }

.dq-item {
  background: var(--bg-base);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  transition: border-color 0.2s;
}
.dq-item:hover { border-color: var(--accent-border); }
.dq-item-past { opacity: 0.65; }

.dq-item-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 8px;
}
.dq-item-date {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
}
.dq-item-date i { color: var(--accent); }

.dq-status-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  border-radius: 50px;
  font-size: 0.7rem;
  font-weight: 700;
}
.dq-status-today { background: rgba(239,68,68,0.15); color: #ef4444; border: 1px solid rgba(239,68,68,0.3); }
.dq-status-past { background: rgba(100,100,100,0.1); color: var(--text-secondary); border: 1px solid var(--border); }
.dq-status-future { background: rgba(0,212,255,0.1); color: var(--accent); border: 1px solid rgba(0,212,255,0.25); }

.dq-item-category {
  font-size: 0.75rem;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 5px;
}
.dq-item-question {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 10px;
  line-height: 1.4;
}
.dq-item-options {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.dq-opt-chip {
  padding: 4px 10px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.78rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 5px;
}
.dq-opt-chip.dq-opt-correct {
  background: rgba(34,197,94,0.1);
  border-color: rgba(34,197,94,0.3);
  color: #22c55e;
  font-weight: 700;
}
/* ═══ REWARDS MANAGEMENT STYLES ═══ */
.rewards-management-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
  margin-top: 20px;
}

.admin-reward-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  transition: all 0.2s;
}

.admin-reward-card:hover {
  border-color: var(--accent-border);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0,212,255,0.1);
}

.admin-reward-header {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 16px;
}

.admin-reward-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: white;
  flex-shrink: 0;
}

.admin-reward-info {
  flex: 1;
  min-width: 0;
}

.admin-reward-info h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 4px;
}

.admin-reward-info p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.4;
}

.admin-reward-actions {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}

.btn-admin-secondary {
  padding: 6px 8px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
  font-size: 0.8rem;
}

.btn-admin-secondary:hover {
  color: var(--text-primary);
  border-color: var(--accent-border);
}

.btn-admin-danger {
  padding: 6px 8px;
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: 8px;
  color: #ef4444;
  cursor: pointer;
  transition: all 0.2s;
  font-size: 0.8rem;
}

.btn-admin-danger:hover {
  background: rgba(239, 68, 68, 0.2);
  border-color: #ef4444;
}

.admin-reward-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.admin-reward-stat {
  text-align: center;
}

.stat-label {
  display: block;
  font-size: 0.7rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

.stat-value {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
}

.status-active {
  color: #22c55e !important;
}

.status-inactive {
  color: #ef4444 !important;
}

.empty-admin-content {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-secondary);
}

.empty-admin-content i {
  font-size: 3rem;
  color: var(--accent);
  opacity: 0.5;
  margin-bottom: 16px;
  display: block;
}

.error-admin-content {
  text-align: center;
  padding: 40px 20px;
  color: #ef4444;
}

/* ═══ XP MANAGEMENT STYLES ═══ */
.xp-management-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 20px;
}

.xp-user-list h4,
.xp-actions-panel h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 16px;
}

.xp-user-results {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  max-height: 400px;
  overflow-y: auto;
  margin-top: 12px;
}

.xp-user-result {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: all 0.2s;
}

.xp-user-result:last-child {
  border-bottom: none;
}

.xp-user-result:hover {
  background: rgba(0,212,255,0.05);
}

.xp-user-result.selected {
  background: rgba(0,212,255,0.1);
  border-color: var(--accent-border);
}

.xp-user-avatar {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent);
  flex-shrink: 0;
}

.xp-user-info {
  flex: 1;
  min-width: 0;
}

.xp-user-name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.xp-user-email {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.xp-user-xp {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
}

.search-hint,
.search-loading,
.no-search-results,
.error-search-results {
  padding: 20px;
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.search-loading i {
  color: var(--accent);
  margin-right: 8px;
}

.xp-actions-panel {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
}

.selected-user-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  background: rgba(0,212,255,0.05);
  border: 1px solid rgba(0,212,255,0.2);
  border-radius: 12px;
  margin-bottom: 20px;
}

.selected-user-avatar {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--accent);
  flex-shrink: 0;
}

.selected-user-details h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 4px;
}

.selected-user-details p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin: 0 0 8px;
}

.current-xp {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.9rem;
  color: var(--text-primary);
}

.xp-action-form {
  display: grid;
  gap: 16px;
}

.form-group {
  display: grid;
  gap: 6px;
}

.form-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
}

.admin-input {
  padding: 10px 14px;
  background: var(--bg-base);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text-primary);
  font-size: 0.9rem;
  font-family: var(--font);
  transition: border-color 0.2s;
  outline: none;
}

.admin-input:focus {
  border-color: var(--accent);
}

.admin-input::placeholder {
  color: var(--text-secondary);
}


/* ═══ MISSING UTILITY CLASSES ═══ */

/* admin-title-section / admin-header-actions */
.admin-title-section { flex: 1; }
.admin-header-actions { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }

/* empty-state */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-secondary);
}
.empty-state .empty-icon {
  font-size: 3rem;
  color: var(--accent);
  opacity: 0.4;
  margin-bottom: 16px;
  display: block;
}
.empty-state h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 8px;
}
.empty-state p {
  font-size: 0.88rem;
  margin: 0;
}

/* btn-sm */
.btn-sm {
  padding: 8px 14px !important;
  font-size: 0.82rem !important;
  gap: 6px !important;
}

/* btn-ghost */
.btn-ghost {
  padding: 8px 14px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s;
  font-family: var(--font);
}
.btn-ghost:hover {
  color: var(--text-primary);
  border-color: var(--accent-border);
  background: rgba(0,212,255,0.05);
}

/* dq-item-actions */
.dq-item-actions {
  display: flex;
  gap: 6px;
  align-items: center;
  flex-shrink: 0;
}

/* modal-backdrop */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}
.modal-backdrop.hidden { display: none; }

/* modal-close */
.modal-close {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-base);
  color: var(--text-secondary);
  font-size: 0.9rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  flex-shrink: 0;
}
.modal-close:hover {
  color: var(--text-primary);
  border-color: var(--accent-border);
  background: rgba(0,212,255,0.08);
}

/* selected-user-info (alias de selected-user-card) */
.selected-user-info {
  margin-bottom: 20px;
}

/* xp-management responsive */
@media (max-width: 768px) {
  .xp-management-layout { grid-template-columns: 1fr; }
}

/* ═══ USER ACTION BUTTONS ═══ */
.btn-admin-action {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  border: 1px solid rgba(0,212,255,0.25);
  background: rgba(0,212,255,0.07);
  color: rgba(0,212,255,0.8);
  font-size: 0.8rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.18s ease;
  flex-shrink: 0;
}
.btn-admin-action:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(0,212,255,0.15);
  transform: translateY(-1px);
  box-shadow: 0 3px 10px rgba(0,212,255,0.2);
}
.btn-admin-action.success {
  border-color: rgba(34,197,94,0.3);
  color: #22c55e;
  background: rgba(34,197,94,0.07);
}
.btn-admin-action.success:hover {
  background: rgba(34,197,94,0.18);
  border-color: #22c55e;
  box-shadow: 0 3px 10px rgba(34,197,94,0.2);
}
.btn-admin-action.warning {
  border-color: rgba(245,158,11,0.3);
  color: #f59e0b;
  background: rgba(245,158,11,0.07);
}
.btn-admin-action.warning:hover {
  background: rgba(245,158,11,0.18);
  border-color: #f59e0b;
  box-shadow: 0 3px 10px rgba(245,158,11,0.2);
}
.btn-admin-action.danger {
  border-color: rgba(239,68,68,0.3);
  color: #ef4444;
  background: rgba(239,68,68,0.07);
}
.btn-admin-action.danger:hover {
  background: rgba(239,68,68,0.18);
  border-color: #ef4444;
  box-shadow: 0 3px 10px rgba(239,68,68,0.2);
}

/* ═══ INFO BANNER ═══ */
.admin-info-banner {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 16px;
  background: rgba(245,158,11,0.08);
  border: 1px solid rgba(245,158,11,0.25);
  border-radius: 12px;
  color: #f59e0b;
  font-size: 0.85rem;
  margin-bottom: 16px;
  line-height: 1.5;
}
.admin-info-banner i { flex-shrink: 0; margin-top: 2px; }

/* ═══ COURSE ACCESS CARDS (app.js version) ═══ */
.course-access-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
}
.course-access-card:hover {
  border-color: var(--accent-border);
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(0,212,255,0.1);
}
.course-access-header {
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 90px;
}
.course-access-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(255,255,255,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: #fff;
  flex-shrink: 0;
}
.course-access-info h4 {
  font-size: 1rem;
  font-weight: 800;
  color: #fff;
  margin: 0 0 4px;
  text-shadow: 0 1px 4px rgba(0,0,0,0.4);
}
.course-access-info p {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.75);
  margin: 0;
}
.course-access-body {
  padding: 18px 20px 20px;
}
.access-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 16px;
}
.access-stat {
  background: var(--bg-base);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px;
  text-align: center;
}
.stat-number {
  display: block;
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 4px;
}
.stat-label {
  display: block;
  font-size: 0.68rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 600;
}
.course-access-actions {
  display: flex;
  gap: 8px;
}

/* ═══ ADMIN PRIMARY / SECONDARY BUTTONS ═══ */
.btn-admin-primary {
  flex: 1;
  padding: 9px 12px;
  background: linear-gradient(135deg, var(--accent), var(--accent-soft));
  border: none;
  border-radius: 10px;
  color: #080c10;
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: all 0.2s;
  font-family: var(--font);
}
.btn-admin-primary:hover {
  opacity: 0.9;
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(0,212,255,0.3);
}
.btn-admin-secondary {
  flex: 1;
  padding: 9px 12px;
  background: var(--bg-base);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text-secondary);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: all 0.2s;
  font-family: var(--font);
}
.btn-admin-secondary:hover {
  color: var(--text-primary);
  border-color: var(--accent-border);
  background: rgba(0,212,255,0.05);
}

/* ═══════════════════════════════════════════════
   COURSE IMAGES MANAGER
═══════════════════════════════════════════════ */

.ci-course-selector {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 24px;
}

.ci-course-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 20px;
  border: 2px solid var(--pill-color, #4ade80);
  background: transparent;
  color: var(--pill-color, #4ade80);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}
.ci-course-pill:hover,
.ci-course-pill.active {
  background: var(--pill-color, #4ade80);
  color: #080c10;
}

.ci-loading {
  text-align: center;
  padding: 40px;
  color: var(--text-secondary);
  font-size: 1rem;
}

.ci-lessons-grid {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.ci-week-block {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
}

.ci-week-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  background: color-mix(in srgb, var(--wcolor, #4ade80) 12%, transparent);
  border-bottom: 1px solid color-mix(in srgb, var(--wcolor, #4ade80) 25%, transparent);
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--wcolor, #4ade80);
}

.ci-lesson-block {
  padding: 16px 18px;
  border-bottom: 1px solid var(--border);
}
.ci-lesson-block:last-child { border-bottom: none; }

.ci-lesson-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Drop zone */
.ci-drop-zone {
  border: 2px dashed var(--border);
  border-radius: 12px;
  padding: 16px;
  transition: border-color 0.2s, background 0.2s;
  min-height: 100px;
  position: relative;
}
.ci-drop-zone.drag-over {
  border-color: #4ade80;
  background: rgba(74, 222, 128, 0.08);
  box-shadow: inset 0 0 0 2px rgba(74,222,128,0.3);
}

.ci-images-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 10px;
}

/* Image slot */
.ci-img-slot {
  position: relative;
  width: 90px;
  height: 90px;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border);
  flex-shrink: 0;
}
.ci-img-slot img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.ci-img-slot.ci-img-uploading {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-base);
  color: var(--text-secondary);
  font-size: 1.2rem;
}

/* Overlay on hover */
.ci-img-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.75);
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 6px;
  opacity: 0;
  transition: opacity 0.2s;
}
.ci-img-slot:hover .ci-img-overlay { opacity: 1; }

.ci-img-caption,
.ci-img-prompt {
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 4px;
  color: #fff;
  font-size: 0.68rem;
  padding: 3px 5px;
  width: 100%;
  outline: none;
}
.ci-img-caption::placeholder,
.ci-img-prompt::placeholder { color: rgba(255,255,255,0.4); }

.ci-img-delete {
  margin-top: auto;
  background: rgba(239,68,68,0.8);
  border: none;
  border-radius: 4px;
  color: #fff;
  font-size: 0.72rem;
  padding: 3px 6px;
  cursor: pointer;
  align-self: flex-end;
}
.ci-img-delete:hover { background: #ef4444; }

/* Add button */
.ci-add-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: 8px;
  border: 1px dashed var(--border);
  color: var(--text-secondary);
  font-size: 0.8rem;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s;
  margin-right: 10px;
}
.ci-add-btn:hover { border-color: #4ade80; color: #4ade80; }

.ci-drop-hint {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  color: var(--text-secondary);
  opacity: 0.6;
}

/* Toast */
.admin-toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  padding: 12px 20px;
  border-radius: 10px;
  font-size: 0.88rem;
  font-weight: 600;
  color: #fff;
  z-index: 9999;
  transform: translateY(20px);
  opacity: 0;
  transition: transform 0.3s, opacity 0.3s;
  pointer-events: none;
}
.admin-toast.show { transform: translateY(0); opacity: 1; }
.admin-toast-success { background: #16a34a; }
.admin-toast-error { background: #dc2626; }