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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #f5f5f5;
    color: #333;
    line-height: 1.6;
}

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

.login-container {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    width: 100%;
    max-width: 400px;
}

.login-form h1 {
    text-align: center;
    margin-bottom: 1.5rem;
    color: #333;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group input {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
    width: 100%;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background: #007bff;
    color: white;
}

.btn-primary:hover {
    background: #0056b3;
}

.alert {
    padding: 12px 16px;
    border-radius: 6px;
    margin-bottom: 20px;
    border-left: 4px solid;
}

.alert.error {
    background: #f8d7da;
    color: #721c24;
    border-color: #f5c6cb;
}

.alert.success {
    background: #d4edda;
    color: #155724;
    border-color: #c3e6cb;
}

/* Админка */
.admin-container {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 250px;
    background: #2c3e50;
    color: white;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid #34495e;
}

.sidebar-header h2 {
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.user-info {
    font-size: 0.9rem;
    color: #bdc3c7;
}

.sidebar-menu ul {
    list-style: none;
    padding: 0;
}

.menu-item {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    color: #bdc3c7;
    text-decoration: none;
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
}

.menu-item:hover {
    background: #34495e;
    color: white;
    border-left-color: #3498db;
}

.menu-item.active {
    background: #34495e;
    color: white;
    border-left-color: #3498db;
}

.menu-item i {
    margin-right: 10px;
    width: 20px;
    text-align: center;
}

.menu-item.logout {
    color: #e74c3c;
}

.menu-item.logout:hover {
    background: #e74c3c;
    color: white;
}

.main-content {
    flex: 1;
    margin-left: 250px;
    padding: 0;
    min-height: 100vh;
}

.content-header {
    background: white;
    padding: 20px 30px;
    border-bottom: 1px solid #e0e0e0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.content-header h1 {
    font-size: 1.8rem;
    margin-bottom: 5px;
}

.breadcrumb {
    color: #7f8c8d;
    font-size: 0.9rem;
}

.breadcrumb .current {
    color: #3498db;
}

.content-body {
    padding: 30px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    display: flex;
    align-items: center;
    transition: transform 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: #3498db;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 15px;
    color: white;
    font-size: 1.5rem;
}

.stat-info h3 {
    font-size: 1.8rem;
    margin-bottom: 5px;
}

.stat-info p {
    color: #7f8c8d;
    font-size: 0.9rem;
}

.content-section {
    background: white;
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    margin-bottom: 25px;
}

.content-section h2 {
    margin-bottom: 20px;
    font-size: 1.4rem;
    color: #2c3e50;
}

.action-buttons {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.btn-success {
    background: #28a745;
    color: white;
}

.btn-success:hover {
    background: #218838;
}

/* Формы */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #2c3e50;
}

.form-control {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
    transition: all 0.3s ease;
    font-family: inherit;
}

.form-control:focus {
    outline: none;
    border-color: #3498db;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

textarea.form-control {
    resize: vertical;
    min-height: 80px;
}

.form-help {
    font-size: 12px;
    color: #7f8c8d;
    margin-top: 5px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-weight: normal;
}

.checkbox-label input[type="checkbox"] {
    display: none;
}

.checkmark {
    width: 20px;
    height: 20px;
    border: 2px solid #ddd;
    border-radius: 4px;
    margin-right: 10px;
    position: relative;
    transition: all 0.3s ease;
}

.checkbox-label input[type="checkbox"]:checked + .checkmark {
    background: #3498db;
    border-color: #3498db;
}

.checkbox-label input[type="checkbox"]:checked + .checkmark::after {
    content: '✓';
    position: absolute;
    color: white;
    font-size: 14px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.form-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.btn-secondary {
    background: #6c757d;
    color: white;
}

.btn-secondary:hover {
    background: #545b62;
}

/* Таблицы */
.table-container {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 15px;
}

.data-table th,
.data-table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid #e0e0e0;
}

.data-table th {
    background: #f8f9fa;
    font-weight: 600;
    color: #2c3e50;
}

.data-table tr:hover {
    background: #f8f9fa;
}

.btn-sm {
    padding: 6px 10px;
    font-size: 12px;
}

.btn-edit {
    background: #17a2b8;
    color: white;
}

.btn-delete {
    background: #dc3545;
    color: white;
}

.status-badge {
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}

.status-badge.active {
    background: #d4edda;
    color: #155724;
}

.status-badge.inactive {
    background: #f8d7da;
    color: #721c24;
}

.empty-state {
    text-align: center;
    padding: 40px;
    color: #7f8c8d;
}

.empty-state i {
    font-size: 48px;
    margin-bottom: 15px;
    color: #bdc3c7;
}

.action-buttons {
    display: flex;
    gap: 5px;
}

.text-muted {
    color: #7f8c8d;
}

@media (max-width: 768px) {
    .sidebar {
        width: 100%;
        height: auto;
        position: relative;
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .admin-container {
        flex-direction: column;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .action-buttons {
        flex-direction: column;
    }
}