:root {
    --primary: #0088cc;
    --primary-dark: #006da3;
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-hover: #f0f2f5;
    --text-primary: #000000;
    --text-secondary: #707579;
    --border: #e7e8ec;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --radius: 12px;
    --radius-sm: 8px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
}

body {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.5;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 16px;
}

/* Header */
header {
    background-color: var(--bg-primary);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
}

.logo i {
    font-size: 24px;
}

.search-bar {
    flex-grow: 1;
    max-width: 500px;
    margin: 0 20px;
    position: relative;
}

.search-bar input {
    width: 100%;
    padding: 12px 16px 12px 40px;
    border: none;
    border-radius: 20px;
    background-color: var(--bg-secondary);
    font-size: 15px;
    transition: all 0.2s;
}

.search-bar input:focus {
    outline: none;
    background-color: var(--bg-primary);
    box-shadow: 0 0 0 2px var(--primary);
}

.search-bar i {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
}

.user-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.user-actions a {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 15px;
    transition: color 0.2s;
}

.user-actions a:hover {
    color: var(--primary);
}

.add-btn {
    background-color: var(--primary);
    color: white;
    padding: 10px 16px;
    border-radius: 20px;
    font-weight: 500;
    transition: background-color 0.2s;
}

.add-btn:hover {
    background-color: var(--primary-dark);
    color: white;
}

/* Categories */
.categories {
    background-color: var(--bg-primary);
    padding: 16px 0;
    border-top: 1px solid var(--border);
}

.categories-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    list-style: none;
}

.categories-list li {
    display: inline-block;
}

.categories-list a {
    display: block;
    text-decoration: none;
    color: var(--text-primary);
    padding: 8px 16px;
    border-radius: 20px;
    background-color: var(--bg-secondary);
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s;
    white-space: nowrap;
}

.categories-list a:hover,
.categories-list a.active {
    background-color: var(--primary);
    color: white;
}

/* Main Content */
.main-content {
    display: flex;
    margin: 24px 0;
    gap: 24px;
}

.ads-grid {
    flex-grow: 1;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
}

.ad-card {
    background-color: var(--bg-primary);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.2s, box-shadow 0.2s;
    cursor: pointer;
}

.ad-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.ad-image {
    height: 380px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 14px;
    position: relative;
    overflow: hidden;
}

/* Для реальных изображений */
.ad-image img {
    width: 100%;
    /* Растягиваем по ширине контейнера */
    height: 100%;
    /* Растягиваем по высоте контейнера */
    object-fit: cover;
    /* Обрезаем лишнее, сохраняя пропорции */
    object-position: center;
    /* Центрируем изображение при обрезке */
}

.ad-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.1);
}

.ad-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    background-color: var(--primary);
    color: white;
    padding: 4px 8px;
    border-radius: 20px;
    font-size: 12px;
    z-index: 1;
}

.ad-info {
    padding: 16px;
}

.ad-price {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 8px;
}

.ad-title {
    font-size: 16px;
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    height: 48px;
}

.ad-meta {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
    color: var(--text-secondary);
}

/* Sidebar */
.sidebar {
    width: 300px;
    flex-shrink: 0;
}

.filter-section {
    background-color: var(--bg-primary);
    padding: 20px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-bottom: 20px;
}

.filter-section h3 {
    margin-bottom: 16px;
    font-size: 18px;
    font-weight: 600;
}

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

.filter-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
}

.filter-group input,
.filter-group select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    transition: border-color 0.2s;
}

.filter-group input:focus,
.filter-group select:focus {
    outline: none;
    border-color: var(--primary);
}

.price-inputs {
    display: flex;
    gap: 10px;
}

.price-inputs input {
    flex: 1;
}

.apply-btn {
    background-color: var(--primary);
    color: white;
    border: none;
    padding: 12px;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    width: 100%;
    transition: background-color 0.2s;
}

.apply-btn:hover {
    background-color: var(--primary-dark);
}

/* Footer */
footer {
    background-color: var(--bg-primary);
    padding: 40px 0 20px;
    margin-top: 40px;
    border-top: 1px solid var(--border);
}

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

.footer-section h3 {
    margin-bottom: 16px;
    font-size: 16px;
    font-weight: 600;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s;
}

.footer-section a:hover {
    color: var(--primary);
}

.copyright {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 14px;
}

/* Пагинация */
.pagination {
    margin: 40px 0 20px;
    display: flex;
    justify-content: center;
}

.pagination .page-link {
    color: var(--primary);
    border: 1px solid var(--border);
    padding: 10px 16px;
    margin: 0 4px;
    border-radius: var(--radius-sm);
    transition: all 0.3s ease;
    font-weight: 500;
}

.pagination .page-link:hover {
    color: var(--primary-dark);
    background-color: var(--bg-hover);
    border-color: var(--primary);
    text-decoration: none;
}

.pagination .page-item.active .page-link {
    background-color: var(--primary);
    border-color: var(--primary);
    color: white;
}

.pagination .page-item.disabled .page-link {
    color: var(--text-secondary);
    background-color: var(--bg-secondary);
    border-color: var(--border);
}

/* Информация о странице */
.pagination-info {
    text-align: center;
    margin-top: 15px;
    color: var(--text-secondary);
    font-size: 14px;
}

/* Responsive */
@media (max-width: 992px) {
    .main-content {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
    }

    .ads-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
}

@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 16px;
    }

    .search-bar {
        max-width: 100%;
        margin: 0;
        order: 3;
        width: 100%;
    }

    .user-actions {
        gap: 12px;
    }

    .ads-grid {
        grid-template-columns: repeat(auto-fill, minmax(100%, 1fr));
    }

    .categories-list {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .categories-list a {
        padding: 6px 12px;
        font-size: 13px;
    }

    .user-actions a span {
        display: none;
    }

    .user-actions a i {
        margin-right: 0;
    }
}