* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Noto Sans', sans-serif;
    background: #f8fafc;
    color: #1e293b;
    min-height: 100vh;
}

/* ========================================
   LOGIN SCREEN
   ======================================== */

.login-screen {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 2rem;
}

.login-box {
    background: white;
    padding: 3rem;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    width: 100%;
    max-width: 420px;
    text-align: center;
}

.login-header {
    margin-bottom: 2.5rem;
}

.login-header i {
    font-size: 3.5rem;
    color: #667eea;
    margin-bottom: 1rem;
}

.login-header h2 {
    color: #1e293b;
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.login-header p {
    color: #64748b;
    font-size: 0.95rem;
}

.form-group {
    margin-bottom: 1.5rem;
    text-align: left;
}

.form-group label {
    display: block;
    color: #475569;
    margin-bottom: 0.5rem;
    font-weight: 500;
    font-size: 0.9rem;
}

.form-group input {
    width: 100%;
    padding: 0.875rem 1rem;
    background: #f8fafc;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    color: #1e293b;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input:focus {
    outline: none;
    border-color: #667eea;
    background: white;
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
}

.form-group input::placeholder {
    color: #94a3b8;
}

.login-btn {
    width: 100%;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    border: none;
    padding: 1rem;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 0.5rem;
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
}

/* ========================================
   ADMIN DASHBOARD CONTAINER
   ======================================== */

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

/* ========================================
   SIDEBAR
   ======================================== */

.sidebar {
    width: 260px;
    background: white;
    border-right: 1px solid #e2e8f0;
    display: flex;
    flex-direction: column;
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

.sidebar.collapsed {
    width: 70px;
}

.sidebar-header {
    padding: 1.5rem 1.25rem;
    border-bottom: 1px solid #e2e8f0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: #1e293b;
}

.logo i {
    color: #667eea;
    font-size: 1.5rem;
}

.sidebar.collapsed .logo span {
    display: none;
}

.sidebar-toggle {
    background: none;
    border: none;
    color: #64748b;
    cursor: pointer;
    padding: 0.5rem;
    margin-left: auto;
    border-radius: 6px;
    transition: all 0.3s ease;
}

.sidebar-toggle:hover {
    background: #f1f5f9;
    color: #667eea;
}

.sidebar-nav {
    flex: 1;
    padding: 1rem 0.75rem;
    overflow-y: auto;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 0.875rem;
    padding: 0.875rem 1rem;
    color: #64748b;
    text-decoration: none;
    border-radius: 8px;
    margin-bottom: 0.5rem;
    transition: all 0.3s ease;
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
}

.nav-item i {
    font-size: 1.25rem;
    min-width: 20px;
    text-align: center;
}

.nav-item:hover {
    background: #f8fafc;
    color: #667eea;
}

.nav-item.active {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
}

.nav-item.active i {
    color: white;
}

.sidebar.collapsed .nav-item span:not(.badge) {
    display: none;
}

.nav-item .badge {
    margin-left: auto;
    background: #ef4444;
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    min-width: 20px;
    text-align: center;
}

.sidebar-footer {
    padding: 1rem 0.75rem;
    border-top: 1px solid #e2e8f0;
}

.sidebar-footer .logout-btn {
    width: 100%;
    background: #ef4444;
    color: white;
    border: none;
    padding: 0.875rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
}

.sidebar-footer .logout-btn:hover {
    background: #dc2626;
    transform: translateY(-1px);
}

.sidebar.collapsed .sidebar-footer .logout-btn span {
    display: none;
}

/* ========================================
   MAIN CONTENT
   ======================================== */

.main-content {
    flex: 1;
    margin-left: 260px;
    background: #f8fafc;
    min-height: 100vh;
    transition: all 0.3s ease;
}

.sidebar.collapsed + .main-content {
    margin-left: 70px;
}

.content-header {
    background: white;
    padding: 1.5rem 2rem;
    border-bottom: 1px solid #e2e8f0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.top-header {
    background: white;
    padding: 1.5rem 2rem;
    border-bottom: 1px solid #e2e8f0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.header-left h1 {
    font-size: 1.75rem;
    font-weight: 700;
    color: #1e293b;
    margin: 0 0 0.25rem 0;
}

.header-left p {
    font-size: 0.875rem;
    color: #64748b;
    margin: 0;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.header-btn {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.25);
}

.header-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #475569;
    font-size: 0.95rem;
}

.user-info i {
    font-size: 1.5rem;
    color: #94a3b8;
}

.page-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: #1e293b;
    margin: 0;
}

.content-body {
    padding: 2rem;
}

.page-content {
    padding: 2rem;
}

/* ========================================
   PAGE SECTIONS
   ======================================== */

.page {
    display: none;
}

.page.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========================================
   STATS GRID
   ======================================== */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    border: 1px solid #e2e8f0;
    display: flex;
    align-items: center;
    gap: 1.25rem;
    transition: all 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08);
}

.stat-card.stat-wide {
    grid-column: span 2;
}

.stat-card.stat-wide .stat-info {
    text-align: right;
}

.stat-icon {
    width: 64px;
    height: 64px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    flex-shrink: 0;
}

.stat-primary .stat-icon {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
}

.stat-success .stat-icon {
    background: linear-gradient(135deg, #10b981, #059669);
    color: white;
}

.stat-warning .stat-icon {
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: white;
}

.stat-danger .stat-icon {
    background: linear-gradient(135deg, #ef4444, #dc2626);
    color: white;
}

.stat-info .stat-icon {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    color: white;
}

.stat-info {
    flex: 1;
}

.stat-label {
    color: #64748b;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 0.25rem;
}

.stat-change {
    font-size: 0.875rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.stat-change.positive {
    color: #10b981;
}

.stat-change.negative {
    color: #ef4444;
}

/* ========================================
   QUICK ACTIONS
   ======================================== */

.chart-container {
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    border: 1px solid #e2e8f0;
    margin-bottom: 2rem;
}

.quick-actions {
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    border: 1px solid #e2e8f0;
    margin-bottom: 2rem;
}

.quick-actions h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 1.25rem;
}

.action-buttons,
.action-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

@media (max-width: 1200px) {
    .action-buttons,
    .action-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .action-buttons,
    .action-grid {
        grid-template-columns: 1fr;
    }
}

.action-btn {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    border: none;
    padding: 1rem 1.5rem;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
}

.action-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.4);
}

.action-btn.secondary {
    background: linear-gradient(135deg, #10b981, #059669);
}

.action-btn.secondary:hover {
    box-shadow: 0 8px 20px rgba(16, 185, 129, 0.4);
}

/* ========================================
   RECENT ACTIVITY
   ======================================== */

.recent-activity {
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    border: 1px solid #e2e8f0;
}

.recent-activity h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 1.25rem;
}

.activity-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.activity-item {
    display: flex;
    align-items: start;
    gap: 1rem;
    padding: 1rem;
    background: #f8fafc;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.activity-item:hover {
    background: #f1f5f9;
}

.activity-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    flex-shrink: 0;
}

.activity-content {
    flex: 1;
}

.activity-content p {
    color: #475569;
    font-size: 0.95rem;
    margin-bottom: 0.25rem;
}

.activity-time {
    color: #94a3b8;
    font-size: 0.85rem;
}

/* ========================================
   TABLE
   ======================================== */

.table-container {
    background: white;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
    overflow: hidden;
}

.table-header {
    padding: 1.5rem;
    border-bottom: 1px solid #e2e8f0;
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: center;
}

.search-box {
    flex: 1;
    min-width: 250px;
    position: relative;
}

.search-box i {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: #94a3b8;
}

.search-box input {
    width: 100%;
    padding: 0.75rem 1rem 0.75rem 2.75rem;
    background: #f8fafc;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    color: #1e293b;
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.search-box input:focus {
    outline: none;
    border-color: #667eea;
    background: white;
}

.filter-group {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.filter-group select {
    padding: 0.75rem 1rem;
    background: #f8fafc;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    color: #1e293b;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-group select:focus {
    outline: none;
    border-color: #667eea;
    background: white;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table thead {
    background: #f8fafc;
    border-bottom: 2px solid #e2e8f0;
}

.data-table th {
    padding: 1rem 1.5rem;
    text-align: left;
    font-weight: 600;
    font-size: 0.875rem;
    color: #475569;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.data-table tbody tr {
    border-bottom: 1px solid #e2e8f0;
    transition: all 0.3s ease;
}

.data-table tbody tr:hover {
    background: #f8fafc;
}

.data-table td {
    padding: 1rem 1.5rem;
    font-size: 0.95rem;
    color: #475569;
}

.status-badge {
    padding: 0.375rem 0.75rem;
    border-radius: 16px;
    font-size: 0.8125rem;
    font-weight: 600;
    display: inline-block;
}

.status-pending {
    background: #fef3c7;
    color: #d97706;
}

.status-processing {
    background: #dbeafe;
    color: #2563eb;
}

.status-completed {
    background: #d1fae5;
    color: #059669;
}

.status-select {
    padding: 0.375rem 0.75rem;
    border-radius: 6px;
    border: 1px solid #e2e8f0;
    font-size: 0.8125rem;
    font-weight: 600;
    background: white;
    cursor: pointer;
    min-width: 100px;
}

.status-select:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.gift-amount-input,
.date-input {
    border: 1px solid #e2e8f0;
    border-radius: 4px;
    font-size: 0.875rem;
}

.gift-amount-input:focus,
.date-input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.table-actions {
    display: flex;
    gap: 0.5rem;
}

.btn-icon {
    background: none;
    border: none;
    color: #64748b;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 6px;
    transition: all 0.3s ease;
    font-size: 1rem;
}

.btn-icon:hover {
    background: #f1f5f9;
    color: #667eea;
}

.btn-icon.danger:hover {
    background: #fee2e2;
    color: #ef4444;
}

.pagination {
    padding: 1.5rem;
    border-top: 1px solid #e2e8f0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.pagination-info {
    color: #64748b;
    font-size: 0.9rem;
}

.pagination-controls {
    display: flex;
    gap: 0.5rem;
}

.pagination-controls button {
    padding: 0.5rem 1rem;
    background: white;
    border: 2px solid #e2e8f0;
    border-radius: 6px;
    color: #475569;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.pagination-controls button:hover:not(:disabled) {
    border-color: #667eea;
    color: #667eea;
}

.pagination-controls button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pagination-controls button.active {
    background: #667eea;
    border-color: #667eea;
    color: white;
}

/* ========================================
   CONTENT MANAGEMENT
   ======================================== */

.content-tabs {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: linear-gradient(135deg, #f8fafc, #f1f5f9);
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

@media (max-width: 768px) {
    .content-tabs {
        grid-template-columns: 1fr;
    }
}

.content-editor {
    background: white;
    border-radius: 0 0 12px 12px;
    border: 1px solid #e2e8f0;
    border-top: none;
    padding: 2rem;
}

.editor-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    border-bottom: 2px solid #e2e8f0;
    padding-bottom: 0;
}

.tab-btn {
    background: linear-gradient(135deg, #f8fafc, #f1f5f9);
    border: 2px solid #e2e8f0;
    padding: 1rem 1.5rem;
    color: #64748b;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    border-radius: 10px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    margin-bottom: 0;
    position: relative;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    white-space: nowrap;
    text-align: center;
    min-height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tab-btn:hover {
    color: #667eea;
    background: linear-gradient(135deg, #ffffff, #f8fafc);
    border-color: #667eea;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.15);
}

.tab-btn.active {
    color: white;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-color: #667eea;
    font-weight: 700;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.3);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.editor-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.editor-grid .full-width {
    grid-column: 1 / -1;
}

.total-display {
    grid-column: 1 / -1;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    padding: 1.5rem;
    border-radius: 12px;
    text-align: center;
    font-size: 1.25rem;
}

.editor-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid #e2e8f0;
}

@media (max-width: 768px) {
    .editor-actions {
        grid-template-columns: 1fr;
    }
}

.btn-outline {
    background: white;
    border: 2px solid #cbd5e1;
    color: #475569;
    padding: 1rem 2rem;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.04);
    position: relative;
    overflow: hidden;
    min-height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
}

.btn-outline::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(102, 126, 234, 0.1);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-outline:hover::before {
    width: 300px;
    height: 300px;
}

.btn-outline:hover {
    border-color: #667eea;
    color: #667eea;
    background: white;
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(102, 126, 234, 0.15);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    color: #475569;
    margin-bottom: 0.5rem;
    font-weight: 500;
    font-size: 0.9rem;
}

.form-group input[type="text"],
.form-group input[type="number"],
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.875rem 1rem;
    background: #f8fafc;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    color: #1e293b;
    font-size: 0.95rem;
    font-family: inherit;
    transition: all 0.3s ease;
    resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: #667eea;
    background: white;
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
}

.form-group textarea {
    min-height: 120px;
}

.form-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid #e2e8f0;
}

.btn {
    padding: 1rem 2rem;
    border-radius: 10px;
    border: none;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    min-height: 50px;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    box-shadow: 0 4px 14px rgba(102, 126, 234, 0.25);
    border: none;
    position: relative;
    overflow: hidden;
    padding: 1rem 2rem;
    border-radius: 10px;
    font-size: 1.05rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 28px rgba(102, 126, 234, 0.45);
}

.btn-secondary {
    background: linear-gradient(135deg, #f8fafc, #e2e8f0);
    color: #475569;
    border: 2px solid #cbd5e1;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.btn-secondary:hover {
    background: linear-gradient(135deg, #e2e8f0, #cbd5e1);
    border-color: #94a3b8;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* ========================================
   BANNER MANAGEMENT
   ======================================== */

.banner-tabs {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: linear-gradient(135deg, #f8fafc, #f1f5f9);
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

@media (max-width: 768px) {
    .banner-tabs {
        grid-template-columns: 1fr;
    }
}

.banner-editor {
    background: white;
    border-radius: 0 0 12px 12px;
    border: 1px solid #e2e8f0;
    border-top: none;
    padding: 2rem;
}

.banner-content {
    display: none;
}

.banner-content.active {
    display: block;
}

.toggle-group {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: 1.5rem;
    padding: 1rem;
    background: #f8fafc;
    border-radius: 10px;
    border: 2px solid #e2e8f0;
}

.toggle-group span {
    font-size: 1rem;
    font-weight: 600;
    color: #475569;
}

.toggle-switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 32px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #cbd5e1;
    transition: 0.4s;
    border-radius: 32px;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 24px;
    width: 24px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: 0.4s;
    border-radius: 50%;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.toggle-switch input:checked + .toggle-slider {
    background: linear-gradient(135deg, #667eea, #764ba2);
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.15);
}

.toggle-switch input:checked + .toggle-slider:before {
    transform: translateX(28px);
}

.table-footer {
    padding: 1.5rem;
    border-top: 1px solid #e2e8f0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: white;
}

.showing-info {
    color: #64748b;
    font-size: 0.95rem;
    font-weight: 600;
}

/* Pagination Styles */
.pagination {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.pagination-btn {
    min-width: 40px;
    height: 40px;
    padding: 0.5rem;
    border: 2px solid #e2e8f0;
    background: white;
    color: #64748b;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.pagination-btn:hover:not(:disabled) {
    border-color: #667eea;
    color: #667eea;
    background: #f8fafc;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(102, 126, 234, 0.15);
}

.pagination-btn.active {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    border-color: #667eea;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.pagination-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.pagination-ellipsis {
    color: #94a3b8;
    padding: 0 0.5rem;
    font-weight: 600;
}

.faq-editor {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.faq-item {
    background: #f8fafc;
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
}

.faq-item input,
.faq-item textarea {
    margin-bottom: 0.75rem;
}

.btn-add {
    background: linear-gradient(135deg, #10b981, #059669);
    color: white;
    border: none;
    padding: 0.875rem 1.75rem;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: fit-content;
    margin: 0 auto;
}

.btn-add:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(16, 185, 129, 0.4);
}

.btn-refresh {
    background: #f1f5f9;
    color: #475569;
    border: 2px solid #e2e8f0;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1rem;
}

.btn-refresh:hover {
    background: #e2e8f0;
    border-color: #cbd5e1;
}

.banner-section {
    background: linear-gradient(135deg, #ffffff, #f8fafc);
    border-radius: 16px;
    border: 2px solid #e2e8f0;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
    transition: all 0.3s ease;
}

.banner-section:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    border-color: #cbd5e1;
}

.banner-section h3,
.banner-section h4 {
    font-size: 1.25rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 1.5rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid #e2e8f0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.banner-section h3::before,
.banner-section h4::before {
    content: '';
    width: 4px;
    height: 24px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 2px;
}

.upload-area {
    border: 3px dashed #cbd5e1;
    border-radius: 16px;
    padding: 3.5rem 2.5rem;
    text-align: center;
    background: linear-gradient(135deg, #f8fafc, #f1f5f9);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
}

.upload-area::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(102, 126, 234, 0.05) 0%, transparent 70%);
    transition: transform 0.6s;
    transform: scale(0);
}

.upload-area:hover::before {
    transform: scale(1);
}

.upload-area:hover {
    border-color: #667eea;
    background: linear-gradient(135deg, #ffffff, #f8fafc);
    transform: translateY(-4px);
    box-shadow: 0 12px 28px rgba(102, 126, 234, 0.12);
}

.upload-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.25rem;
    cursor: pointer;
    position: relative;
    z-index: 1;
}

.upload-label i {
    font-size: 3.5rem;
    color: #94a3b8;
    transition: all 0.3s ease;
}

.upload-area:hover .upload-label i {
    color: #667eea;
    transform: scale(1.1);
}

.upload-label p {
    color: #475569;
    font-weight: 600;
    font-size: 1.05rem;
    transition: color 0.3s ease;
}

.upload-area:hover .upload-label p {
    color: #667eea;
}

.upload-label span {
    color: #94a3b8;
    font-size: 0.875rem;
    font-weight: 500;
}

.image-preview-container {
    margin-top: 1.5rem;
}

.preview-image {
    max-width: 100%;
    border-radius: 8px;
    border: 1px solid #e2e8f0;
}

/* 모바일에서 배너 이미지 프리뷰 크기 조정 */
@media screen and (max-width: 768px) {
    .preview-image {
        max-width: 100%;
        width: 100%;
        height: auto;
    }
}

.btn-remove {
    margin-top: 1rem;
    background: #ef4444;
    color: white;
}

.btn-remove:hover {
    background: #dc2626;
    transform: translateY(-2px);
}

/* ========================================
   TOAST NOTIFICATIONS
   ======================================== */

.toast-container {
    position: fixed;
    top: 2rem;
    right: 2rem;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.toast {
    min-width: 320px;
    max-width: 450px;
    background: white;
    border-radius: 12px;
    padding: 1rem 1.5rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    display: flex;
    align-items: center;
    gap: 1rem;
    animation: slideInRight 0.3s ease;
    position: relative;
    overflow: hidden;
}

.toast::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
}

.toast.success::before {
    background: #10b981;
}

.toast.error::before {
    background: #ef4444;
}

.toast.warning::before {
    background: #f59e0b;
}

.toast.info::before {
    background: #3b82f6;
}

.toast-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.toast.success .toast-icon {
    background: rgba(16, 185, 129, 0.1);
    color: #10b981;
}

.toast.error .toast-icon {
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
}

.toast.warning .toast-icon {
    background: rgba(245, 158, 11, 0.1);
    color: #f59e0b;
}

.toast.info .toast-icon {
    background: rgba(59, 130, 246, 0.1);
    color: #3b82f6;
}

.toast-content {
    flex: 1;
}

.toast-title {
    font-weight: 600;
    font-size: 0.95rem;
    color: #1e293b;
    margin-bottom: 0.25rem;
}

.toast-message {
    font-size: 0.875rem;
    color: #64748b;
}

.toast-close {
    background: none;
    border: none;
    color: #94a3b8;
    cursor: pointer;
    padding: 0.25rem;
    font-size: 1.25rem;
    line-height: 1;
    transition: color 0.2s;
}

.toast-close:hover {
    color: #64748b;
}

.toast-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 3px;
    background: currentColor;
    opacity: 0.3;
    animation: shrinkProgress 3s linear;
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes shrinkProgress {
    from {
        width: 100%;
    }
    to {
        width: 0%;
    }
}

/* ========================================
   LOADING OVERLAY
   ======================================== */

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.loading-spinner {
    background: white;
    border-radius: 16px;
    padding: 2.5rem 3rem;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.spinner {
    width: 60px;
    height: 60px;
    border: 4px solid #e2e8f0;
    border-top-color: #667eea;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 1rem;
}

.loading-spinner p {
    color: #475569;
    font-size: 1rem;
    font-weight: 600;
    margin: 0;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ========================================
   SKELETON LOADER
   ======================================== */

.skeleton-loader {
    padding: 2rem;
}

.skeleton-row {
    height: 60px;
    background: linear-gradient(
        90deg,
        #f1f5f9 25%,
        #e2e8f0 50%,
        #f1f5f9 75%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: 8px;
    margin-bottom: 1rem;
}

@keyframes shimmer {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* ========================================
   SECURITY PAGE
   ======================================== */

.password-change-form {
    background: linear-gradient(135deg, #ffffff, #f8fafc);
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    padding: 2rem;
    max-width: 500px;
}

.password-change-form .form-group {
    margin-bottom: 1.5rem;
}

.password-change-form .btn-primary {
    width: 100%;
    margin-top: 1rem;
}

.login-history-container {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.875rem;
}

.status-success {
    background: rgba(16, 185, 129, 0.1);
    color: #10b981;
}

.status-error {
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
}

.ip-manager {
    background: white;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
    padding: 1.5rem;
}

.ip-manager h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 1.5rem;
}

.ip-input-group {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.ip-input-group input {
    flex: 1;
    padding: 0.875rem 1rem;
    background: #f8fafc;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    color: #1e293b;
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.ip-input-group input:focus {
    outline: none;
    border-color: #667eea;
    background: white;
}

.btn-block {
    background: #ef4444;
    color: white;
    padding: 0.875rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-block:hover {
    background: #dc2626;
}

.blocked-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.ip-tag {
    background: #fee2e2;
    color: #991b1b;
    padding: 0.625rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.ip-tag button {
    background: none;
    border: none;
    color: #991b1b;
    cursor: pointer;
    font-size: 1rem;
    padding: 0;
    display: flex;
    align-items: center;
    transition: all 0.3s ease;
}

.ip-tag button:hover {
    color: #7f1d1d;
}

/* ========================================
   MOBILE MENU TOGGLE
   ======================================== */

.mobile-menu-toggle {
    display: none;
    position: fixed;
    top: 1rem;
    left: 1rem;
    z-index: 1001;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    border: none;
    width: 48px;
    height: 48px;
    border-radius: 12px;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    font-size: 1.25rem;
}

.mobile-menu-toggle:active {
    transform: scale(0.95);
}

.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
}

.sidebar-overlay.active {
    display: block;
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */

@media screen and (max-width: 1024px) {
    .mobile-menu-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .sidebar {
        transform: translateX(-100%);
        box-shadow: 4px 0 12px rgba(0, 0, 0, 0.1);
    }

    .sidebar.active {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
    }

    .sidebar.collapsed + .main-content {
        margin-left: 0;
    }
}

@media screen and (max-width: 768px) {
    /* 모바일 헤더 수정 */
    .top-header {
        padding: 1rem;
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .header-left {
        width: 100%;
        padding-left: 3.5rem;
    }

    .header-left h1 {
        font-size: 1.3rem;
    }

    .header-left p {
        font-size: 0.85rem;
    }

    .header-right {
        width: 100%;
        flex-direction: row;
        justify-content: space-between;
        padding-left: 3.5rem;
    }

    /* 사이트 보기 버튼 모바일 크기 축소 */
    .header-btn {
        padding: 0.5rem 0.875rem;
        font-size: 0.8rem;
        white-space: nowrap;
    }

    .header-btn i {
        font-size: 0.75rem;
    }

    /* 관리자 영역 모바일 크기 축소 */
    .user-info {
        font-size: 0.8rem;
        gap: 0.35rem;
    }

    .user-info i {
        font-size: 1.1rem;
    }

    .content-body {
        padding: 1rem;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .action-buttons {
        grid-template-columns: 1fr;
    }

    .table-header {
        flex-direction: column;
        align-items: stretch;
    }

    .search-box {
        min-width: 100%;
    }

    .data-table {
        font-size: 0.875rem;
    }

    .data-table th,
    .data-table td {
        padding: 0.75rem;
    }

    .editor-tabs {
        overflow-x: auto;
    }

    .tab-btn {
        white-space: nowrap;
        padding: 0.875rem 1rem;
    }

    .form-actions {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .ip-input-group {
        flex-direction: column;
    }
}

@media screen and (max-width: 480px) {
    .login-box {
        padding: 2rem 1.5rem;
    }

    .page-title {
        font-size: 1.5rem;
    }

    .stat-value {
        font-size: 1.5rem;
    }

    .stat-icon {
        width: 48px;
        height: 48px;
        font-size: 1.25rem;
    }
}

/* ========================================
   UTILITIES
   ======================================== */

.hidden {
    display: none !important;
}

.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(102, 126, 234, 0.3);
    border-radius: 50%;
    border-top-color: #667eea;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ========================================
   TOGGLE SWITCH
   ======================================== */

.toggle-container {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin: 1rem 0;
}

.switch {
    position: relative;
    display: inline-block;
    width: 52px;
    height: 28px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #cbd5e1;
    transition: 0.4s;
    border-radius: 28px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: 0.4s;
    border-radius: 50%;
}

input:checked + .slider {
    background: linear-gradient(135deg, #667eea, #764ba2);
}

input:checked + .slider:before {
    transform: translateX(24px);
}

.toggle-label {
    color: #475569;
    font-weight: 500;
    font-size: 0.95rem;
}