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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: #333;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Шапка */
.header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

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

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-link:hover {
    color: #667eea;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Формы авторизации */
.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 2rem;
}

.auth-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 3rem;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 450px;
}

.auth-title {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 2rem;
    color: #333;
}

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

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #555;
}

.form-input {
    width: 100%;
    padding: 1rem;
    border: 2px solid #e1e5e9;
    border-radius: 10px;
    font-size: 1rem;
    transition: border-color 0.3s;
    background: rgba(255, 255, 255, 0.8);
}

.form-input:focus {
    outline: none;
    border-color: #667eea;
}

.form-select {
    width: 100%;
    padding: 1rem;
    border: 2px solid #e1e5e9;
    border-radius: 10px;
    font-size: 1rem;
    background: rgba(255, 255, 255, 0.8);
}

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-decoration: none;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: transform 0.3s, box-shadow 0.3s;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
}

.btn-full {
    width: 100%;
}

.btn-secondary {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.btn-success {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.btn-danger {
    background: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
}

.btn-warning {
    background: linear-gradient(135deg, #ffa726 0%, #ff9800 100%);
}

/* Дашборд */
.dashboard {
    padding: 2rem 0;
}

.dashboard-header {
    text-align: center;
    margin-bottom: 3rem;
}

.dashboard-title {
    font-size: 2.5rem;
    color: white;
    margin-bottom: 1rem;
}

.dashboard-subtitle {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.8);
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.dashboard-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
}

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

.card-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: block;
}

.card-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #333;
}

.card-description {
    color: #666;
    margin-bottom: 1.5rem;
}

/* Админ панель */
.admin-panel {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 2rem;
    margin: 2rem 0;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.admin-tabs {
    display: flex;
    border-bottom: 2px solid #e1e5e9;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.admin-tab {
    padding: 1rem 2rem;
    background: none;
    border: none;
    font-size: 1rem;
    cursor: pointer;
    border-bottom: 3px solid transparent;
    transition: all 0.3s;
}

.admin-tab.active {
    border-bottom-color: #667eea;
    color: #667eea;
    font-weight: 600;
}

.tab-content {
    display: none;
}

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

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

.table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 2rem;
}

.table th,
.table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid #e1e5e9;
}

.table th {
    background: #f8f9fa;
    font-weight: 600;
}

/* Модальные окна */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    overflow-y: auto;
}

.modal-content {
    position: relative;
    background: white;
    margin: 5% auto;
    padding: 2rem;
    width: 90%;
    max-width: 600px;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    max-height: 90vh;
    overflow-y: auto;
}

.close {
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    font-size: 2rem;
    cursor: pointer;
    color: #999;
}

.close:hover {
    color: #333;
}

/* Предпросмотр кода */
.code-preview {
    border: 2px solid #e1e5e9;
    border-radius: 10px;
    margin-top: 1rem;
}

.code-editor {
    width: 100%;
    min-height: 300px;
    padding: 1rem;
    border: none;
    font-family: 'Courier New', monospace;
    font-size: 14px;
    resize: vertical;
}

.preview-frame {
    width: 100%;
    height: 400px;
    border: none;
    border-top: 2px solid #e1e5e9;
    background: white;
    border-radius: 0 0 10px 10px;
}

/* Уведомления */
.alert {
    padding: 1rem;
    border-radius: 10px;
    margin-bottom: 1rem;
}

.alert-success {
    background: #d4edda;
    border: 1px solid #c3e6cb;
    color: #155724;
}

.alert-error {
    background: #f8d7da;
    border: 1px solid #f5c6cb;
    color: #721c24;
}

.alert-info {
    background: #d1ecf1;
    border: 1px solid #bee5eb;
    color: #0c5460;
}

/* Мобильная адаптация */
@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }
    
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(10px);
        flex-direction: column;
        padding: 1rem;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .auth-card {
        padding: 2rem;
        margin: 1rem;
    }
    
    .dashboard-title {
        font-size: 2rem;
    }
    
    .dashboard-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .admin-tabs {
        flex-direction: column;
    }
    
    .admin-tab {
        text-align: center;
        padding: 0.75rem 1rem;
    }
    
    .table-responsive {
        font-size: 0.9rem;
    }
    
    .modal-content {
        margin: 2% auto !important;
        padding: 1.5rem;
        width: 95% !important;
        max-width: 95% !important;
        max-height: 95vh !important;
    }
    
    .container {
        padding: 0 15px;
    }
}

@media (max-width: 480px) {
    .auth-title {
        font-size: 1.5rem;
    }
    
    .dashboard-title {
        font-size: 1.75rem;
    }
    
    .card-title {
        font-size: 1.25rem;
    }
    
    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .table th,
    .table td {
        padding: 0.5rem;
    }
}

/* Анимации */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.5s ease-out;
}

/* Кастомные скроллбары */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 10px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
}