/* Сброс и базовые стили */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

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

/* Шапка */
.header {
    background: linear-gradient(135deg, #2c3e50 0%, #4a6491 100%);
    color: white;
    padding: 15px 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

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

.logo {
    display: flex;
    align-items: center;
    color: white;
    text-decoration: none;
    font-size: 1.8rem;
    font-weight: 700;
}

.logo i {
    margin-right: 10px;
    font-size: 2rem;
    color: #f39c12;
}

.nav-links {
    display: flex;
    gap: 20px;
    align-items: center;
}

.nav-links a {
    color: white;
    text-decoration: none;
    padding: 8px 15px;
    border-radius: 4px;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 5px;
}

.nav-links a:hover {
    background-color: rgba(255,255,255,0.1);
}

.login-btn, .register-btn, .logout-btn, .admin-link {
    padding: 8px 20px !important;
    font-weight: 500;
}

.login-btn {
    background-color: #3498db;
}

.register-btn {
    background-color: #2ecc71;
}

.logout-btn {
    background-color: #e74c3c;
}

.admin-link {
    background-color: #9b59b6;
}

/* Основной контент */
.main-content {
    min-height: 70vh;
    padding: 40px 0;
}

.hero-section {
    text-align: center;
    padding: 60px 20px;
    background: linear-gradient(rgba(255,255,255,0.9), rgba(255,255,255,0.9)), 
                url('https://images.unsplash.com/photo-1551288049-bebda4e38f71?ixlib=rb-4.0.3&auto=format&fit=crop&w=1200&q=80');
    background-size: cover;
    border-radius: 10px;
    margin-bottom: 40px;
}

.hero-section h1 {
    font-size: 2.5rem;
    color: #2c3e50;
    margin-bottom: 20px;
}

.hero-section p {
    font-size: 1.2rem;
    color: #7f8c8d;
    max-width: 800px;
    margin: 0 auto 30px;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
}

/* Кнопки */
.btn {
    display: inline-block;
    padding: 12px 30px;
    background-color: #3498db;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn:hover {
    background-color: #2980b9;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.btn-primary {
    background-color: #3498db;
}

.btn-secondary {
    background-color: #95a5a6;
}

.btn-small {
    padding: 8px 15px;
    font-size: 0.9rem;
}

/* Сетка лотов */
.featured-lots h2 {
    text-align: center;
    margin-bottom: 30px;
    color: #2c3e50;
    font-size: 2rem;
}

.lots-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 25px;
    margin-bottom: 40px;
}

.lot-card {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
}

.lot-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}

.lot-image {
    height: 200px;
    position: relative;
    overflow: hidden;
}

.lot-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.no-image {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background-color: #ecf0f1;
    color: #7f8c8d;
}

.no-image i {
    font-size: 3rem;
    margin-bottom: 10px;
}

.lot-timer {
    position: absolute;
    top: 10px;
    right: 10px;
    background-color: rgba(231, 76, 60, 0.9);
    color: white;
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 5px;
}

.lot-info {
    padding: 20px;
}

.lot-info h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: #2c3e50;
}

.lot-category {
    color: #3498db;
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.lot-price {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 1px solid #eee;
}

.current-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: #27ae60;
}

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

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

.btn-bid {
    background-color: #f39c12;
}

.btn-bid:hover {
    background-color: #e67e22;
}

.view-all {
    text-align: center;
}

/* Подвал */
.footer {
    background-color: #2c3e50;
    color: white;
    padding: 40px 0;
    margin-top: 60px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.footer-section h3 {
    font-size: 1.3rem;
    margin-bottom: 20px;
    color: #f39c12;
}

.footer-section p, .footer-section a {
    color: #bdc3c7;
    margin-bottom: 10px;
    display: block;
    text-decoration: none;
}

.footer-section a:hover {
    color: white;
}

.footer-section i {
    margin-right: 10px;
    width: 20px;
}

/* Мобильное меню */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Модальное окно */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
}

.modal-content {
    background-color: white;
    margin: 10% auto;
    padding: 30px;
    border-radius: 10px;
    width: 90%;
    max-width: 500px;
    position: relative;
}

.close-modal {
    position: absolute;
    right: 20px;
    top: 15px;
    font-size: 1.5rem;
    cursor: pointer;
    color: #7f8c8d;
}

.close-modal:hover {
    color: #333;
}

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

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
}

/* Адаптивность */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background-color: #2c3e50;
        flex-direction: column;
        padding: 20px;
        z-index: 100;
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .lots-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-section h1 {
        font-size: 2rem;
    }
}