/* Современный дизайн магазина */

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

:root {
    /* Цветовая палитра */
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #8b5cf6;
    --accent: #ec4899;
    
    --bg: #ffffff;
    --bg-light: #f8fafc;
    --bg-card: #ffffff;
    
    --text: #1e293b;
    --text-muted: #64748b;
    --text-light: #94a3b8;
    
    --border: #e2e8f0;
    --border-light: #f1f5f9;
    
    --success: #10b981;
    --error: #ef4444;
    --warning: #f59e0b;
    
    /* Тени */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Радиусы */
    --radius-sm: 0.375rem;
    --radius: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    
    /* Отступы */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg-light);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Шапка */
.site-header {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.95);
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}

.logo a {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
    letter-spacing: -0.02em;
    transition: transform 0.2s;
}

.logo a:hover {
    transform: scale(1.05);
}

.header-cart {
    margin-left: auto;
}

.header-cart a {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    text-decoration: none;
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: 0.95rem;
    transition: all 0.2s;
    box-shadow: var(--shadow);
}

.header-cart a:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    background: linear-gradient(135deg, var(--primary-hover), var(--secondary));
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-left: auto;
    padding: 0.25rem 0.5rem;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 999px;
    box-shadow: var(--shadow-sm);
}

.header-auth a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    color: var(--text-muted);
    text-decoration: none;
    padding: 0.4rem 0.85rem;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    background: rgba(148, 163, 184, 0.08);
    transition: all 0.2s;
}

.header-auth a:hover {
    color: var(--primary);
    background: rgba(99, 102, 241, 0.06);
    border-color: var(--primary-light);
    box-shadow: var(--shadow-sm);
}

.btn-link {
    padding: 0.45rem 1rem;
    border-radius: 999px;
    font-weight: 600;
    border: none;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #ffffff;
    box-shadow: var(--shadow);
}

.btn-link:hover {
    background: linear-gradient(135deg, var(--primary-hover), var(--secondary));
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* Навигация */
.nav-bar {
    width: auto;
    margin-top: 0;
    margin-left: 2rem;
}

.nav-scroller {
    width: auto;
    overflow-x: visible;
    -webkit-overflow-scrolling: touch;
}

.nav-scroller::-webkit-scrollbar {
    display: none;
}

.nav-mobile-title {
    display: none;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-light);
    margin-bottom: 0.25rem;
}

.nav-categories {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-categories a {
    padding: 0.5rem 1rem;
    color: var(--primary);
    text-decoration: none;
    border-radius: 999px;
    font-size: 0.9rem;
    font-weight: 600;
    transition: all 0.2s;
    position: relative;
    background: rgba(129, 140, 248, 0.08); /* светло-фиолетовый фон */
    border: 1px solid transparent;
}

.nav-categories a:hover {
    color: #ffffff;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    box-shadow: var(--shadow-sm);
}

.nav-categories .active a {
    color: #ffffff;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    box-shadow: var(--shadow);
    border-color: transparent;
}

/* Основной контент */
.main-wrap {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-lg) 1.5rem;
    min-height: calc(100vh - 200px);
}

/* Заголовки */
.page-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text);
    margin: 0 0 var(--spacing-md);
    letter-spacing: -0.02em;
}

h1, h2, h3 {
    color: var(--text);
    font-weight: 700;
    line-height: 1.2;
}

h2 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing);
}

/* Сетка товаров */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: var(--spacing-md);
    list-style: none;
    padding: 0;
}

/* Карточка товара */
.product-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid var(--border-light);
    position: relative;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    opacity: 0;
    transition: opacity 0.3s;
}

.product-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-light);
}

.product-card:hover::before {
    opacity: 1;
}

.product-card a {
    text-decoration: none;
    color: inherit;
    display: block;
}

.product-card-image {
    aspect-ratio: 1;
    background: linear-gradient(135deg, var(--bg-light), var(--border-light));
    overflow: hidden;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    font-size: 0.875rem;
}

.product-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

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

.product-card-body {
    padding: var(--spacing);
}

.product-card-name {
    font-weight: 600;
    font-size: 1rem;
    color: var(--text);
    display: block;
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.product-card-price {
    font-size: 1.25rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Страница товара */
.product-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    background: var(--bg-card);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

@media (max-width: 768px) {
    .product-detail {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
}

.product-detail-image {
    aspect-ratio: 1;
    background: linear-gradient(135deg, var(--bg-light), var(--border-light));
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    box-shadow: var(--shadow-lg);
}

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

.product-detail-info h1 {
    font-size: 2rem;
    margin: 0 0 var(--spacing-sm);
    color: var(--text);
}

.product-detail-price {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.product-detail-price .price-old,
.product-card-price .price-old {
    text-decoration: line-through;
    -webkit-text-fill-color: var(--text-muted);
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.7em;
    opacity: 0.9;
}

.product-detail-price .price-discounted {
    font-size: 1.1em;
    font-weight: 800;
    color: var(--success);
    -webkit-text-fill-color: var(--success);
}

.product-card-price .price-discounted {
    font-size: 1.05em;
    font-weight: 800;
    color: var(--success);
    -webkit-text-fill-color: var(--success);
}

.discount-badge {
    font-size: 0.75rem;
    font-weight: 600;
    background: var(--error);
    color: white;
    padding: 0.2rem 0.5rem;
    border-radius: var(--radius-sm);
    -webkit-text-fill-color: initial;
}

.product-detail-description {
    color: var(--text-muted);
    line-height: 1.8;
    white-space: pre-wrap;
    margin: 0 0 var(--spacing-md);
    font-size: 1.05rem;
}

/* Форма добавления в корзину */
.product-detail-info form {
    margin-top: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing);
    flex-wrap: wrap;
}

.product-detail-info label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 500;
    color: var(--text);
}

.product-detail-info input[type="number"] {
    width: 5rem;
    padding: 0.625rem;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    font-size: 1rem;
    transition: all 0.2s;
    background: var(--bg);
}

.product-detail-info input[type="number"]:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

/* Кнопки */
.btn-cart {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 2rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.3s;
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.btn-cart::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn-cart:hover::before {
    left: 100%;
}

.btn-cart:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, var(--primary-hover), var(--secondary));
}

.btn-cart:active {
    transform: translateY(0);
}

button {
    font-family: inherit;
}

/* Похожие товары */
.suggested-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text);
    margin: var(--spacing-xl) 0 var(--spacing-md);
}

.suggested-grid {
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: var(--spacing);
}

/* Корзина */
.cart-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-md);
}

.cart-table thead {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
}

.cart-table th {
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.cart-table td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-light);
    vertical-align: middle;
}

.cart-table tbody tr:last-child td {
    border-bottom: none;
}

.cart-table tbody tr:hover {
    background: var(--bg-light);
}

.cart-table a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

.cart-table a:hover {
    color: var(--primary-hover);
    text-decoration: underline;
}

.cart-qty-form {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

.cart-qty-input {
    width: 4rem;
    padding: 0.5rem;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.95rem;
    transition: all 0.2s;
    background: var(--bg);
}

.cart-qty-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.btn-update,
.btn-remove {
    padding: 0.5rem 1rem;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-update {
    background: var(--bg-light);
    color: var(--text);
}

.btn-update:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    transform: translateY(-1px);
}

.btn-remove {
    background: rgba(239, 68, 68, 0.1);
    border-color: var(--error);
    color: var(--error);
}

.btn-remove:hover {
    background: var(--error);
    color: white;
    transform: translateY(-1px);
}

.cart-total {
    font-size: 1.5rem;
    font-weight: 700;
    text-align: right;
    padding: var(--spacing-md);
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    color: var(--text);
}

.cart-total strong {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 1.75rem;
}

/* Пустое состояние */
.empty-state {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-muted);
    font-size: 1.125rem;
}

.empty-state a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
}

.empty-state a:hover {
    text-decoration: underline;
}

/* Подвал */
.site-footer {
    border-top: 1px solid var(--border);
    padding: var(--spacing-md) 1.5rem;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.875rem;
    background: var(--bg-card);
    margin-top: var(--spacing-xl);
}

/* Адаптивность */
@media (max-width: 768px) {
    /* Шапка на телефоне: всё в одну строку */
    .header-inner {
        flex-direction: row;
        align-items: center;
        flex-wrap: nowrap;
        gap: 0.5rem;
    }
    
    .header-actions {
        width: auto;
        margin-left: auto;
        flex-direction: row;
        align-items: center;
        justify-content: flex-end;
        gap: 0.5rem;
    }

    .header-cart {
        margin-left: 0;
        width: auto;
    }
    
    .header-cart a {
        width: auto;
        justify-content: center;
        padding-inline: 0.75rem;
    }

    .header-auth {
        display: flex;
        width: auto;
        justify-content: flex-end;
        gap: 0.25rem;
    }
    
    .nav-bar {
        width: 100%;
        margin-left: 0;
        margin-top: 0.5rem;
    }

    .nav-mobile-title {
        display: block;
    }

    /* На телефоне категории в несколько строк, без "обрезания" по краям */
    .nav-scroller {
        width: 100%;
        margin: 0;
        padding: 0 0 0.5rem;
        overflow-x: visible;
    }
    
    .nav-categories {
        flex-wrap: wrap;
        width: 100%;
    }
    
    .nav-categories a {
        white-space: normal;
    }
    
    .product-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: var(--spacing);
    }
    
    .cart-table {
        font-size: 0.875rem;
    }
    
    .cart-table th,
    .cart-table td {
        padding: 0.75rem 0.5rem;
    }
    
    .page-title {
        font-size: 1.5rem;
    }
}

/* Анимации */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.product-card {
    animation: fadeIn 0.3s ease-out;
}

/* Улучшения для форм */
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
    opacity: 1;
}

.auth-page {
    max-width: 480px;
    margin: 0 auto;
}

.auth-card {
    margin-top: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.form-field {
    margin-bottom: var(--spacing);
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.form-field label {
    font-weight: 500;
    color: var(--text);
}

.form-field input,
.form-field select,
.form-field textarea {
    padding: 0.65rem 0.75rem;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    font-size: 0.95rem;
    transition: all 0.2s;
    background: var(--bg);
}

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

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-error {
    color: var(--error);
    font-size: 0.85rem;
}

.form-help {
    font-size: 0.8rem;
    color: var(--text-light);
}

.auth-hint {
    margin-top: var(--spacing);
    font-size: 0.9rem;
    color: var(--text-muted);
}

.auth-hint a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
}

.auth-hint a:hover {
    text-decoration: underline;
}

/* Фокус для доступности */
*:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Страница подтверждения удаления товара */
.product-delete-confirm {
    max-width: 480px;
    margin: 0 auto;
    padding: var(--spacing-lg);
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    animation: fadeIn 0.3s ease-out;
}

.product-delete-confirm h1 {
    font-size: 1.4rem;
    margin-bottom: var(--spacing-sm);
}

.product-delete-confirm p {
    color: var(--text-muted);
    margin-bottom: var(--spacing-md);
}

.product-delete-confirm form {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
}

.btn-danger {
    background: linear-gradient(135deg, #ef4444, #b91c1c);
}

.btn-danger:hover {
    background: linear-gradient(135deg, #dc2626, #991b1b);
}

@media (max-width: 480px) {
    .product-delete-confirm {
        margin-top: var(--spacing);
        padding: var(--spacing);
    }

    .product-delete-confirm h1 {
        font-size: 1.2rem;
    }

    .product-delete-confirm .btn-cart {
        width: 100%;
    }
}