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

:root {
    /* Beeline цветовая схема - желто-черная */
    --color-primary: #FFD200;
    --color-primary-dark: #FFC000;
    --color-primary-light: #FFE066;
    --color-secondary: #000000;
    --color-accent: #FFD200;
    --color-danger: #ef4444;
    --color-warning: #FFD200;
    --color-info: #000000;
    
    --bg-body: #f5f5f5;
    --bg-surface: #ffffff;
    --bg-surface-hover: #fafafa;
    --bg-gradient: linear-gradient(135deg, #FFD200 0%, #FFC000 100%);
    --bg-gradient-primary: linear-gradient(135deg, #FFD200 0%, #FFC000 100%);
    
    --text-main: #000000;
    --text-secondary: #333333;
    --text-light: #666666;
    --text-muted: #999999;
    
    --border-color: #e0e0e0;
    --border-radius: 12px;
    --border-radius-lg: 16px;
    --border-radius-sm: 8px;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s ease;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-body);
    background-image: 
        radial-gradient(at 0% 0%, rgba(255, 210, 0, 0.03) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(139, 92, 246, 0.05) 0px, transparent 50%);
    color: var(--text-main);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
.header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 0;
    gap: 15px;
    flex-wrap: nowrap;
}

.header-search {
    flex: 1;
    max-width: 400px;
    min-width: 200px;
}

.header-search form {
    display: flex;
    gap: 8px;
    align-items: center;
}

.header-search input {
    flex: 1;
    padding: 8px 12px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--bg-surface);
    color: var(--text-main);
    font-size: 14px;
    transition: var(--transition);
    min-width: 0;
}

.header-search input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(255, 210, 0, 0.1);
}

.header-search .btn-small {
    padding: 8px 16px;
    font-size: 14px;
    white-space: nowrap;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: var(--text-main);
    font-size: 18px;
    font-weight: 700;
    transition: var(--transition);
    white-space: nowrap;
    flex-shrink: 0;
}

.logo:hover {
    transform: translateY(-1px);
}

.logo-icon {
    font-size: 20px;
    color: var(--color-primary);
    flex-shrink: 0;
}

.logo-text {
    color: var(--color-secondary);
    font-weight: 700;
    white-space: nowrap;
}

.nav {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: nowrap;
    flex-shrink: 0;
}

.nav-link {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 15px;
    transition: var(--transition);
    position: relative;
    padding: 8px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--color-primary);
}

.nav-link:hover::after {
    width: 100%;
}

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

.user-link {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-main);
    padding: 6px 12px;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.user-link:hover {
    background: var(--bg-surface-hover);
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--color-primary);
    color: var(--color-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 16px;
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 2px solid white;
}

.user-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.logout-link {
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 14px;
    padding: 6px 12px;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.logout-link:hover {
    color: var(--color-danger);
    background: rgba(239, 68, 68, 0.1);
}

/* Кнопки */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 600;
    font-size: 15px;
    text-align: center;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

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

.btn-primary {
    background: var(--color-primary);
    color: var(--color-secondary);
    box-shadow: var(--shadow);
    font-weight: 600;
}

.btn-primary:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn-outline:hover {
    background: var(--color-primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-small {
    padding: 8px 16px;
    font-size: 14px;
}

/* Main */
.main {
    min-height: calc(100vh - 200px);
    padding: 40px 0;
}

/* Поиск */
.search-section {
    margin-bottom: 48px;
}

.search-box {
    background: var(--bg-surface);
    padding: 32px;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
}

.search-form {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr auto;
    gap: 16px;
}

.search-input {
    padding: 14px 18px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 16px;
    transition: var(--transition);
    background: var(--bg-surface);
}

.search-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(255, 210, 0, 0.2);
}

.search-category,
.search-city {
    padding: 14px 18px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 16px;
    background: var(--bg-surface);
    cursor: pointer;
    transition: var(--transition);
}

.search-category:focus,
.search-city:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(255, 210, 0, 0.2);
}

/* Секции */
.section-title {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 32px;
    color: var(--text-main);
    position: relative;
    padding-left: 16px;
}

.section-title::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 32px;
    background: var(--color-primary);
    border-radius: 2px;
}

/* Категории */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 20px;
    margin-bottom: 48px;
}

.category-card {
    background: var(--bg-surface);
    padding: 28px 20px;
    border-radius: var(--border-radius-lg);
    text-decoration: none;
    color: var(--text-main);
    text-align: center;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--color-primary);
    transform: scaleX(0);
    transition: var(--transition);
}

.category-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary-light);
}

.category-card:hover::before {
    transform: scaleX(1);
}

.category-icon {
    font-size: 48px;
    margin-bottom: 12px;
    display: flex;
    justify-content: center;
    transition: var(--transition);
}

.category-card:hover .category-icon {
    transform: scale(1.1);
}

.category-icon i {
    font-size: 48px !important;
    color: var(--color-primary) !important;
    display: inline-block !important;
    font-family: "Font Awesome 6 Free", "Font Awesome 6 Brands", "Font Awesome 6 Pro" !important;
    font-weight: 900 !important;
    font-style: normal !important;
    font-variant: normal !important;
    text-rendering: auto !important;
    line-height: 1 !important;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Стили для всех иконок Font Awesome */
.fas, .far, .fab, .fa, i[class*="fa-"] {
    font-family: "Font Awesome 6 Free", "Font Awesome 6 Brands", "Font Awesome 6 Pro" !important;
    font-weight: 900 !important;
    display: inline-block !important;
    font-style: normal !important;
    font-variant: normal !important;
    text-rendering: auto !important;
    line-height: 1 !important;
    -webkit-font-smoothing: antialiased !important;
    -moz-osx-font-smoothing: grayscale !important;
    speak: none;
}

/* Специальные стили для иконок в категориях */
.category-icon i,
.category-card i,
.logo-icon,
.btn i,
.nav-link i {
    font-family: "Font Awesome 6 Free", "Font Awesome 6 Brands", "Font Awesome 6 Pro" !important;
    font-weight: 900 !important;
    font-style: normal !important;
    -webkit-font-smoothing: antialiased !important;
    -moz-osx-font-smoothing: grayscale !important;
}

.category-name {
    font-weight: 600;
    font-size: 16px;
    margin-bottom: 6px;
    color: var(--text-main);
}

.category-count {
    font-size: 13px;
    color: var(--text-secondary);
}

/* Объявления */
.ads-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
}

.ad-card {
    background: var(--bg-surface);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    text-decoration: none;
    color: var(--text-main);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.ad-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary);
}

.ad-image {
    width: 100%;
    height: 220px;
    background: var(--bg-surface-hover);
    overflow: hidden;
    position: relative;
}

.ad-images-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 6px 10px;
    border-radius: var(--border-radius-sm);
    font-size: 12px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 5px;
    z-index: 2;
    backdrop-filter: blur(4px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.ad-images-badge i {
    font-size: 12px;
    color: var(--color-primary);
}

.ad-card:hover .ad-images-badge {
    background: rgba(0, 0, 0, 0.85);
    transform: scale(1.05);
}

.ad-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, transparent 0%, rgba(0,0,0,0.1) 100%);
    opacity: 0;
    transition: var(--transition);
}

.ad-card:hover .ad-image::after {
    opacity: 1;
}

.ad-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.ad-card:hover .ad-image img {
    transform: scale(1.05);
}

.no-image {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    background: linear-gradient(135deg, #fafafa 0%, #f0f0f0 100%);
    font-size: 14px;
    position: relative;
    overflow: hidden;
}

.no-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        repeating-linear-gradient(
            45deg,
            transparent,
            transparent 10px,
            rgba(255, 210, 0, 0.05) 10px,
            rgba(255, 210, 0, 0.05) 20px
        );
    opacity: 0.5;
}

.no-image i {
    font-size: 48px;
    color: var(--color-primary);
    margin-bottom: 12px;
    position: relative;
    z-index: 1;
    opacity: 0.7;
}

.no-image span {
    position: relative;
    z-index: 1;
    font-weight: 500;
    color: var(--text-secondary);
}

.ad-content {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.ad-title {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-main);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.4;
}

.ad-price {
    font-size: 22px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 12px;
}

.ad-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: auto;
    padding-top: 12px;
    border-top: 1px solid var(--border-color);
}

/* Footer */
.footer {
    background: var(--bg-surface);
    border-top: 1px solid var(--border-color);
    margin-top: 80px;
    padding: 48px 0 24px;
}

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

.footer-section h3 {
    margin-bottom: 20px;
    color: var(--text-main);
    font-weight: 600;
    font-size: 18px;
}

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

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

.footer-section a {
    text-decoration: none;
    color: var(--text-secondary);
    transition: var(--transition);
    display: inline-block;
}

.footer-section a:hover {
    color: var(--color-primary);
    transform: translateX(4px);
}

.footer-bottom {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 14px;
}

/* Формы */
.form-container {
    max-width: 540px;
    margin: 40px auto;
    background: var(--bg-surface);
    padding: 48px;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-main);
    font-size: 14px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 16px;
    font-family: inherit;
    transition: var(--transition);
    background: var(--bg-surface);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(255, 210, 0, 0.2);
}

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

.form-group small {
    display: block;
    margin-top: 6px;
    font-size: 13px;
    color: var(--text-secondary);
}

.form-actions {
    display: flex;
    gap: 16px;
    margin-top: 32px;
}

.alert {
    padding: 16px 20px;
    border-radius: var(--border-radius);
    margin-bottom: 24px;
    border-left: 4px solid;
    display: flex;
    align-items: center;
    gap: 12px;
}

.alert-success {
    background: #d1fae5;
    color: #065f46;
    border-color: var(--color-secondary);
}

.alert-error {
    background: #fee2e2;
    color: #991b1b;
    border-color: var(--color-danger);
}

.alert i {
    font-size: 20px;
}

/* Дополнительные стили для иконок в кнопках */
.btn i {
    position: relative;
    z-index: 1;
}

.btn span {
    position: relative;
    z-index: 1;
}

/* Адаптивность */
@media (max-width: 768px) {
    .header-content {
        flex-wrap: wrap;
    }
    
    .header-search {
        order: 3;
        width: 100%;
        max-width: 100%;
        margin-top: 16px;
    }
    
    .nav {
        width: 100%;
        margin-top: 16px;
        flex-wrap: wrap;
        gap: 16px;
    }
    
    .search-form {
        grid-template-columns: 1fr;
    }
    
    .categories-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
        gap: 16px;
    }
    
    .ads-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .header-content {
        flex-wrap: wrap;
    }
    
    .nav {
        width: 100%;
        margin-top: 16px;
        flex-wrap: wrap;
        gap: 16px;
    }
    
    .form-container {
        padding: 32px 24px;
    }
    
    .section-title {
        font-size: 24px;
    }
}

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

.ad-card,
.category-card {
    animation: fadeIn 0.5s ease-out;
}

/* Улучшенные стили для избранного */
.btn.active {
    background: var(--color-accent);
    color: white;
}

.btn.active i {
    color: white;
}

/* Фильтры */
.filters-section {
    background: var(--bg-surface);
    padding: 24px;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    margin: 30px 0;
    border: 1px solid var(--border-color);
}

.filters-form {
    width: 100%;
}

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

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.filter-group label {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 4px;
}

.filter-input,
.filter-select {
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 14px;
    background: var(--bg-surface);
    color: var(--text-main);
    transition: var(--transition);
    font-family: inherit;
    height: 44px;
    box-sizing: border-box;
}

.filter-input:focus,
.filter-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(255, 210, 0, 0.1);
}

.filter-actions {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: row;
    gap: 12px;
    align-items: center;
    justify-content: flex-end;
    padding-top: 10px;
    margin-top: 10px;
    border-top: 1px solid var(--border-color);
}

.filter-actions .btn {
    min-width: 140px;
    padding: 12px 24px;
    font-size: 14px;
    font-weight: 600;
    height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    white-space: nowrap;
}

.filter-actions .btn-primary {
    background: var(--bg-gradient-primary);
    color: var(--text-main);
    border: none;
    box-shadow: 0 2px 8px rgba(255, 210, 0, 0.3);
}

.filter-actions .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 210, 0, 0.4);
}

.filter-actions .btn-secondary {
    background: var(--bg-surface);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.filter-actions .btn-secondary:hover {
    background: var(--bg-surface-hover);
    border-color: var(--text-light);
}

.category-card.active {
    border-color: var(--color-primary);
    background: linear-gradient(135deg, rgba(255, 210, 0, 0.1) 0%, rgba(255, 192, 0, 0.1) 100%);
}

.category-card.active::before {
    transform: scaleX(1);
}

@media (max-width: 768px) {
    .filters-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .filter-actions {
        flex-direction: column;
        gap: 10px;
        align-items: stretch;
    }
    
    .filter-actions .btn {
        width: 100%;
        min-width: auto;
    }
}