.settings-container {
    background: linear-gradient(135deg, #0a0a0f 0%, #1a1a2e 50%, #0a0a0f 100%);
    min-height: 100vh;
    padding: 0 0 40px 0;
    display: flex;
    flex-direction: column;
}

.utility-cards-section {
    padding: 24px 24px 0 24px;
}

.utility-section-title {
    color: #fff;
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0 0 16px 0;
    opacity: 0.9;
}

.utility-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
}

.utility-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    text-decoration: none;
    color: inherit;
    transition: all 0.2s ease;
    cursor: pointer;
}

.utility-card:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(167, 139, 250, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.utility-card-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.utility-card-content {
    flex: 1;
    min-width: 0;
}

.utility-card-content h3 {
    margin: 0 0 4px 0;
    font-size: 1rem;
    font-weight: 600;
    color: #fff;
}

.utility-card-desc {
    margin: 0;
    font-size: 0.85rem;
    color: #94a3b8;
}

.utility-card-metric {
    margin-top: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    color: #a78bfa;
}

.utility-card-metric .metric-loading {
    color: rgba(255, 255, 255, 0.5);
    font-weight: normal;
    font-size: 0.8rem;
}

.utility-card-metric .metric-value {
    color: #a78bfa;
}

.utility-card-arrow {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.5);
    transition: transform 0.2s, color 0.2s;
}

.utility-card:hover .utility-card-arrow {
    color: #a78bfa;
    transform: translateX(4px);
}

.settings-page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 24px;
    margin: 16px 24px 0 24px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
}

.settings-page-header .header-left {
    display: flex;
    align-items: center;
    gap: 20px;
}

.settings-page-header .return-btn {
    color: #a78bfa;
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s;
}

.settings-page-header .return-btn:hover {
    color: #c4b5fd;
}

.settings-page-header .page-title {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 600;
    color: #fff;
}

.settings-page-header .header-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.settings-page-header .user-badge {
    color: #94a3b8;
    font-size: 0.85rem;
}

.settings-content {
    flex: 1;
    padding: 24px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(400px, 100%), 1fr));
    gap: 20px;
    align-content: start;
}

.settings-section {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 20px;
}

.settings-section h3 {
    margin: 0 0 16px 0;
    color: #fff;
    font-size: 1.1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 12px;
}

.settings-section .glass-panel {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 8px;
}

.form-group label {
    color: #ccc;
}

.form-group select,
.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="number"] {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: #fff;
    border-radius: 6px;
}

.form-group select:focus,
.form-group input:focus {
    outline: none;
    border-color: #a78bfa;
    box-shadow: 0 0 0 2px rgba(167, 139, 250, 0.2);
}

.form-group select option {
    background: #1a1a2e;
    color: #fff;
}

.current-teacher-display {
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.3);
}

.current-teacher-display.no-teacher {
    background: rgba(251, 191, 36, 0.1);
    border-color: rgba(251, 191, 36, 0.3);
}

.current-teacher-info h4 {
    color: #22c55e;
}

.current-teacher-info p {
    color: #86efac;
}

.current-teacher-display.no-teacher h4 {
    color: #fbbf24;
}

.current-teacher-display.no-teacher p {
    color: #fcd34d;
}

.btn-primary {
    background: #6366f1;
    color: white;
}

.btn-primary:hover {
    background: #4f46e5;
}

.btn-success {
    background: #22c55e;
    color: white;
}

.btn-success:hover {
    background: #16a34a;
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: #ccc;
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
}

/* Data Export section - light background needs darker text */
#data-export-section .btn-secondary {
    background: #f1f5f9;
    color: #475569;
    border: 1px solid #e2e8f0;
    font-weight: 500;
}

#data-export-section .btn-secondary:hover {
    background: #e2e8f0;
    color: #334155;
    border-color: #cbd5e1;
}

.section-subtitle {
    color: #94a3b8;
}

.divider {
    border-color: rgba(255, 255, 255, 0.1);
}

.success-message {
    background: rgba(34, 197, 94, 0.15);
    color: #86efac;
    border: 1px solid rgba(34, 197, 94, 0.3);
}

.error-message {
    background: rgba(239, 68, 68, 0.15);
    color: #fca5a5;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.status-indicator.on {
    background: #22c55e;
    box-shadow: 0 0 8px rgba(34, 197, 94, 0.5);
}

.status-indicator.off {
    background: #64748b;
}

#rbac-status-text,
#rbac-groups {
    color: #ccc;
}

#membership-context,
#membership-context-loading {
    color: #ccc;
}

#timezone-info {
    background: rgba(59, 130, 246, 0.1) !important;
    border-color: rgba(59, 130, 246, 0.3) !important;
}

#timezone-info p {
    color: #93c5fd !important;
}

#storage-stats {
    background: rgba(255, 255, 255, 0.05) !important;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

#storage-stats strong {
    color: #fff;
}

#diagnostics-readonly-notice {
    background: rgba(251, 191, 36, 0.15) !important;
    border-color: rgba(251, 191, 36, 0.3) !important;
}

#diagnostics-readonly-notice span {
    color: #fcd34d !important;
}

.setting-hint {
    color: #94a3b8 !important;
}

.form-group {
    margin-bottom: 16px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-actions {
    display: flex;
    gap: 12px;
    margin-top: 20px;
}

.current-teacher-icon {
    font-size: 24px;
}

.hidden {
    display: none !important;
}

.settings-quick-links {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.quick-link-card {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    text-decoration: none;
    transition: transform 0.15s, box-shadow 0.15s;
    flex: 1;
    min-width: 200px;
}

.quick-link-card:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    border-color: rgba(167, 139, 250, 0.3);
}

.quick-link-icon {
    font-size: 20px;
    flex-shrink: 0;
}

.quick-link-title {
    font-weight: 600;
    color: #fff;
    font-size: 0.95rem;
}

.quick-link-desc {
    font-size: 0.8rem;
    color: #94a3b8;
}

.settings-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 0;
    overflow: hidden;
}

.settings-card-header {
    padding: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.settings-card-header h3 {
    margin: 0 0 8px 0;
    color: #fff;
    font-size: 1.1rem;
    font-weight: 600;
}

.settings-card-desc {
    margin: 0;
    color: #94a3b8;
    font-size: 0.9rem;
}

.settings-card-body {
    padding: 20px;
}

.compact-settings-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
}

@media (max-width: 900px) {
    .settings-content {
        grid-template-columns: 1fr;
    }
    
    .settings-page-header {
        flex-direction: column;
        gap: 12px;
        align-items: flex-start;
    }

    .utility-cards-grid {
        grid-template-columns: 1fr 1fr;
    }

    .settings-quick-links {
        flex-direction: column;
    }
}


@media (max-width: 768px) {
    .settings-container { padding: 0 0 24px 0; }
    .settings-header { flex-direction: column; align-items: flex-start; gap: 12px; }
    .settings-title { font-size: 20px; }
    .settings-content { grid-template-columns: 1fr; padding: 16px; gap: 16px; }
    .settings-section { padding: 16px; }
    .form-group { min-width: 100%; width: 100%; }
    .form-row { grid-template-columns: 1fr; gap: 12px; }
    .form-grid { grid-template-columns: 1fr; }
    .form-actions { flex-direction: column; }
    .form-actions button { width: 100%; }
    .settings-tabs { flex-wrap: wrap; }
    .settings-tab { flex: 1 1 auto; text-align: center; }
    .sa-tab-bar { flex-wrap: wrap; gap: 4px; }
    .sa-tab { font-size: 12px; padding: 8px 12px; }

    .utility-cards-section { padding: 16px 16px 0 16px; }
    .utility-cards-grid { grid-template-columns: 1fr; }
    .utility-card { padding: 16px; }

    .settings-page-header {
        margin: 12px 16px 0 16px;
        padding: 12px 16px;
    }

    .settings-card-header { padding: 16px; }
    .settings-card-body { padding: 16px; }
}

@media (max-width: 480px) {
    .settings-content { padding: 12px; gap: 12px; }
    .utility-cards-section { padding: 12px 12px 0 12px; }
    .settings-page-header {
        margin: 8px 12px 0 12px;
        padding: 12px;
        border-radius: 8px;
    }
    .settings-section { padding: 12px; border-radius: 8px; }
    .settings-card { border-radius: 8px; }
    .settings-card-header h3 { font-size: 1rem; }

    .quick-link-card { min-width: 0; flex: 1 1 100%; }

    .settings-section [style*="grid-template-columns"],
    .glass-panel [style*="grid-template-columns"],
    #timezone-info [style*="grid-template-columns"],
    #membership-context [style*="grid-template-columns"] {
        grid-template-columns: 1fr !important;
    }

    .settings-section [style*="display: flex"][style*="gap"],
    .glass-panel [style*="display: flex"][style*="gap"] {
        flex-wrap: wrap;
    }
}

.sa-tab-bar {
    display: flex;
    gap: 6px;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    margin-bottom: 20px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.sa-tab {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 18px;
    background: transparent;
    border: 1px solid transparent;
    border-radius: 8px;
    color: #94a3b8;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.2s ease;
}

.sa-tab:hover {
    background: rgba(255, 255, 255, 0.05);
    color: #e2e8f0;
}

.sa-tab.active {
    background: rgba(139, 92, 246, 0.15);
    border-color: rgba(139, 92, 246, 0.4);
    color: #a78bfa;
    font-weight: 600;
}

.sa-tab-icon {
    font-size: 14px;
}

.sa-tab-panel {
    display: none;
    grid-column: 1 / -1;
}

.sa-tab-panel.active {
    display: block;
    grid-column: 1 / -1;
}