:root {
    --primary-color: #1a237e;
    --primary-dark: #0d1442;
    --primary-light: #3949ab;
    --accent-color: #ff6b35;
    --success-color: #2e7d32;
    --warning-color: #f57c00;
    --danger-color: #d32f2f;
    --light-gray: #f8f9fa;
    --medium-gray: #6c757d;
    --dark-gray: #343a40;
    --white: #ffffff;
    --shadow: 0 2px 10px rgba(0,0,0,0.1);
    --shadow-hover: 0 8px 25px rgba(0,0,0,0.15);
    --border-radius: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--dark-gray);
    background-color: var(--light-gray);
}

html {
    scroll-behavior: smooth;
}

/* Header */
.navbar {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
    box-shadow: var(--shadow);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    width: 100%;
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--white) !important;
}

.navbar-nav .nav-link {
    color: rgba(255,255,255,0.9) !important;
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    border-radius: 8px;
    transition: var(--transition);
}

.navbar-nav .nav-link:hover {
    color: var(--white) !important;
    background-color: rgba(255,255,255,0.1);
}

/* Cart Icon */
.cart-icon {
    position: relative;
    color: var(--white) !important;
    text-decoration: none;
    transition: var(--transition);
}

.cart-icon:hover {
    color: var(--accent-color) !important;
}

.cart-badge {
    position: absolute;
    top: -8px;
    right: -8px;
    background: var(--accent-color);
    color: var(--white);
    border-radius: 50%;
    width: 20px;
    height: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--white);
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

/* Main Content */

/* Breadcrumb Section */
.breadcrumb-section {
    background: var(--white);
    padding: 1rem 0;
    border-bottom: 1px solid #e9ecef;
}

.breadcrumb-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Search Section */
.search-section {
    background: var(--white);
    padding: 1.5rem 0;
    border-bottom: 1px solid #e9ecef;
}

.search-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    position: relative;
}

.search-input {
    width: 100%;
    border: 2px solid #e0e0e0;
    border-radius: 25px;
    padding: 15px 60px 15px 20px;
    font-size: 1.1rem;
    transition: var(--transition);
    background: var(--white);
}

.search-input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(26, 35, 126, 0.25);
}

.search-btn {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    background: var(--accent-color);
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    color: var(--white);
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
}

.search-btn:hover {
    background: #e55a2b;
    transform: translateY(-50%) scale(1.05);
}

/* Filters */
.filters-section {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    margin: 2.5rem auto;
    width: 100%;
}

.filter-btn {
    background: in transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-gradient);
    padding: 0.5rem 1rem;
    border-radius: 25px;
    margin: 0.25rem;
    font-weight: 500;
    transition: var(--transition);
}

.filter-btn.active,
.filter-btn:hover {
    background: var(--primary-color);
    color: var(--white);
}

.filter-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

/* Products Container */
.products-container {
    margin: 2.58 auto;    padding: 0 1rem;
}

/* Products Grid */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.product-card {
    background: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid rgba(0,0,0,0.05);
    position: relative;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.product-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background: var(--light-gray);
}

.product-content {
    padding: 1.5rem;
}

.product-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--dark-gray);
    line-height: 1.4;
}

.product-description {
    color: var(--medium-gray);
    font-size: 0.9rem;
    margin-bottom: 1rem;
    line-height: 1.5;
}

.product-price-cart {
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    margin-bottom: 1rem !important;
    gap: 1rem !important;
    width: 100% !important;
}

.product-description {
    margin-bottom: 0.5rem !important;
}

.product-price {
    font-size: 1.25rem !important;
    font-weight: 700 !important;
    color: var(--success-color) !important;
    flex: 1 !important;
    margin-bottom: 0 !important;
    text-align: left !important;
}

.btn-add-cart {
    background: var(--primary-color) !important;
    border: none !important;
    color: var(--white) !important;
    padding: 10px 12px !important;
    border-radius: 25px !important;
    font-weight: 600 !important;
    transition: var(--transition) !important;
    width: auto !important;
    min-width: 45px !important;
    height: 45px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    flex-shrink: 0 !important;
}

.btn-add-cart i {
    font-size: 1.2rem;
}

.btn-add-cart i.fa-check {
    font-size: 1rem;
}

.btn-add-cart:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.btn-add-cart.added {
    background: var(--success-color);
}

/* Modal Styles */
.modal-content {
    border-radius: var(--border-radius) !important;
    border: none !important;
    background: var(--white) !important;
    box-shadow: var(--shadow) !important;
}

.modal-header {
    background: var(--primary-color) !important;
    color: var(--white) !important;
    border-radius: var(--border-radius) var(--border-radius) 0 0 !important;
    border-bottom: none !important;
}

.modal-header .modal-title {
    font-weight: 600 !important;
    font-size: 1.25rem !important;
}

.modal-body {
    padding: 2rem !important;
}

/* Form Controls in Modals */
.modal .form-control {
    border: 2px solid #e0e0e0 !important;
    border-radius: var(--border-radius) !important;
    padding: 12px 16px !important;
    font-size: 1rem !important;
    transition: var(--transition) !important;
    background: var(--white) !important;
    box-shadow: none !important;
    color: var(--dark-gray) !important;
}

.modal .form-control:focus {
    border-color: var(--primary-color) !important;
    box-shadow: 0 0 0 0.2rem rgba(26, 35, 126, 0.15) !important;
    outline: none !important;
    background: var(--white) !important;
    color: var(--dark-gray) !important;
}

.modal .form-label {
    font-weight: 600 !important;
    color: var(--dark-gray) !important;
    margin-bottom: 8px !important;
}

.modal .form-text {
    color: var(--medium-gray) !important;
    font-size: 0.875rem !important;
    margin-top: 4px !important;
}

.cart-item {
    display: flex;
    align-items: center;
    padding: 1rem;
    border-bottom: 1px solid #e0e0e0;
}

.cart-item:last-child {
    border-bottom: none;
}

.cart-item-image {
    width: 60px;
    height: 60px;
    object-fit: cover;
    border-radius: 8px;
    margin-right: 1rem;
}

.cart-item-info {
    flex: 1;
}

.cart-item-title {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.cart-item-price {
    color: var(--success-color);
    font-weight: 600;
}

.quantity-controls {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--light-gray);
    padding: 0.5rem;
    border-radius: 12px;
    border: 1px solid rgba(0,0,0,0.05);
}

.quantity-btn {
    background: var(--primary-color);
    border: none;
    color: var(--white);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.quantity-btn:hover {
    background: var(--primary-dark);
    transform: scale(1.1);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

.quantity-btn:active {
    transform: scale(0.95);
}

.quantity-btn.plus-btn {
    background: var(--success-color);
}

.quantity-btn.plus-btn:hover {
    background: #1b5e20;
}

.quantity-btn.minus-btn {
    background: var(--warning-color);
}

.quantity-btn i {
    font-size: 0.9rem;
    font-weight: 700;
}

.quantity-input {
    width: 60px;
    text-align: center;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    padding: 0.5rem;
    font-weight: 600;
    font-size: 1rem;
    background: var(--white);
    transition: var(--transition);
}

.quantity-input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(26, 35, 126, 0.15);
    outline: none;
}

.remove-btn {
    background: var(--danger-color);
    border: none;
    color: var(--white);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    margin-left: 1rem;
    cursor: pointer;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.remove-btn:hover {
    background: #b71c1c;
    transform: scale(1.1);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

.remove-btn:active {
    transform: scale(0.95);
}

.remove-btn i {
    font-size: 0.9rem;
    font-weight: 700;
}

.cart-total {
    background: var(--light-gray);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    margin-top: 1rem;
}

.total-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
}

.total-row.final {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
    border-top: 2px solid var(--primary-color);
    padding-top: 0.5rem;
    margin-top: 0.5rem;
}

.btn-checkout {
    background: #ff6b35 !important;
    border: none !important;
    color: #ffffff !important;
    padding: 15px 30px;
    border-radius: 25px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: var(--transition);
    width: 100%;
    margin-top: 1rem;
}

.btn-checkout:hover {
    background: #e55a2b !important;
    color: #ffffff !important;
    transform: translateY(-2px);
}

.btn-checkout:focus {
    background: #ff6b35 !important;
    color: #ffffff !important;
    box-shadow: 0 0 0 0.2rem rgba(255, 107, 53, 0.25);
}

.btn-checkout:not(:disabled) {
    background: #ff6b35 !important;
    color: #ffffff !important;
}

/* Empty Cart */
.empty-cart {
    text-align: center;
    padding: 3rem;
    color: var(--medium-gray);
}

.empty-cart i {
    font-size: 4rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

/* Notifications */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    background: var(--success-color);
    color: var(--white);
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-hover);
    z-index: 9999;
    transform: translateX(400px);
    transition: var(--transition);
}

.notification.show {
    transform: translateX(0);
}

.notification.error {
    background: var(--danger-color);
}

/* Планшеты */
@media (max-width: 1024px) {
    .products-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)) !important;
        gap: 1.5rem !important;
    }
}

/* Мобильные устройства */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .products-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 0.75rem !important;
    }
    
    .product-card {
        padding: 0.75rem;
    }
    
    .product-name {
        font-size: 0.9rem;
        line-height: 1.3;
        margin-bottom: 0.5rem;
    }
    
    .product-description {
        font-size: 0.8rem;
        margin-bottom: 0.5rem;
    }
    
    .product-price {
        font-size: 1rem !important;
    }
    
    .product-stock small {
        font-size: 0.75rem;
    }
    
    .btn-add-cart {
        padding: 0.5rem 0.75rem;
        font-size: 0.8rem;
    }
    
    .cart-item {
        flex-direction: column;
        align-items: flex-start;
        padding: 0.75rem;
    }
    
    .quantity-btn {
        width: 32px;
        height: 32px;
    }
    
    .quantity-btn i {
        font-size: 0.8rem;
    }
    
    .quantity-input {
        width: 50px;
        padding: 0.4rem;
        font-size: 0.9rem;
    }
    
    .remove-btn {
        width: 32px;
        height: 32px;
        margin-left: 0.5rem;
    }
    
    .remove-btn i {
        font-size: 0.8rem;
    }
}

/* Средние мобильные устройства */
@media (max-width: 600px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 0.6rem !important;
    }
}

/* Очень маленькие экраны */
@media (max-width: 480px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 0.5rem !important;
    }
    
    .product-card {
        padding: 0.5rem;
    }
    
    .product-name {
        font-size: 0.8rem;
        line-height: 1.2;
    }
    
    .product-description {
        font-size: 0.7rem;
    }
    
    .product-price {
        font-size: 0.9rem !important;
    }
    
    .product-stock small {
        font-size: 0.7rem;
    }
    
    .btn-add-cart {
        padding: 0.4rem 0.6rem;
        font-size: 0.7rem;
    }
    
    .cart-item-image {
        margin-bottom: 1rem;
    }
    
    .quantity-btn {
        width: 28px;
        height: 28px;
    }
    
    .quantity-btn i {
        font-size: 0.7rem;
    }
    
    .quantity-input {
        width: 45px;
        padding: 0.3rem;
        font-size: 0.8rem;
    }
    
    .remove-btn {
        width: 28px;
        height: 28px;
        margin-left: 0.25rem;
    }
    
    .remove-btn i {
        font-size: 0.7rem;
    }
    
    .header-content,
    .breadcrumb-container,
    .search-container,
    .filters-section,
    .products-container {
        padding: 0 0.5rem;
    }
    
    .search-container {
        flex-direction: column;
        gap: 0.75rem;
    }
    
    .search-btn {
        width: 35px;
        height: 35px;
        right: 6px;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

.pulse {
    animation: pulse 0.6s ease-in-out;
}

/* Contact Items Hover Effects */
.contact-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

/* Disabled Button Styles */
.btn-checkout:disabled {
    background-color: #6c757d !important;
    border-color: #6c757d !important;
    color: #ffffff !important;
    cursor: not-allowed !important;
    opacity: 0.6 !important;
    pointer-events: none !important;
}

.btn-checkout:disabled:hover {
    background-color: #6c757d !important;
    border-color: #6c757d !important;
    color: #ffffff !important;
    transform: none !important;
    box-shadow: none !important;
    opacity: 0.6 !important;
}

.btn-checkout .fas {
    color: #ffffff !important;
}

.btn-checkout:disabled .fas {
    color: #ffffff !important;
}

.btn-checkout:not(:disabled) .fas {
    color: #ffffff !important;
}

/* Auth Modal Specific Styles */
#authModal .modal-dialog {
    max-width: 900px !important;
}

#authModal .modal-body {
    padding: 2rem !important;
}

#authModal .border-end {
    border-right: 2px solid var(--light-gray) !important;
}

#authModal h4 {
    color: var(--dark-gray) !important;
    font-weight: 600 !important;
}

#authModal .text-primary {
    color: var(--primary-color) !important;
}

#authModal .text-success {
    color: var(--success-color) !important;
}

#authModal .border-top {
    border-top: 2px solid var(--light-gray) !important;
}

#authModal .form-control::placeholder {
    color: var(--medium-gray) !important;
    font-size: 0.9rem !important;
}

/* Modern Auth Tabs */
#authModal .nav-pills {
    border-radius: var(--border-radius) !important;
    background: var(--white) !important;
    padding: 8px !important;
    box-shadow: inset 0 1px 2px rgba(0,0,0,0.01) !important;
    margin-bottom: 2rem !important;
}

#authModal .auth-tab {
    border-radius: var(--border-radius) !important;
    padding: 1rem 1.5rem !important;
    background: transparent !important;
    color: var(--dark-gray) !important;
    border: none !important;
    font-weight: 600 !important;
    transition: all 0.3s ease !important;
    position: relative !important;
    overflow: hidden !important;
}

#authModal .auth-tab:hover {
    background: var(--light-gray) !important;
    color: var(--primary-color) !important;
    transform: translateY(-1px) !important;
}

#authModal .auth-tab.active {
    background: var(--primary-color) !important;
    color: var(--white) !important;
    box-shadow: 0 4px 12px rgba(26, 35, 126, 0.3) !important;
}

#authModal .auth-tab i {
    font-size: 1.1rem !important;
    margin-right: 8px !important;
}

#authModal .tab-title {
    display: block !important;
    font-size: 1rem !important;
    font-weight: 700 !important;
}

#authModal .tab-subtitle {
    display: block !important;
    font-size: 0.75rem !important;
    font-weight: 400 !important;
    opacity: 0.8 !important;
    margin-top: 2px !important;
}

#authModal .auth-form-container {
    padding: 2rem !important;
    background: var(--white) !important;
    border-radius: var(--border-radius) !important;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05) !important;
}

#authModal .auth-form-header h5 {
    font-size: 1.5rem !important;
    font-weight: 700 !important;
    margin-bottom: 0.5rem !important;
}

#authModal .tab-pane {
    animation: fadeInUp 0.3s ease !important;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Auth Modal Responsive */
@media (max-width: 767px) {
    #authModal .auth-tab {
        padding: 0.75rem 1rem !important;
    }
    
    #authModal .tab-title {
        font-size: 0.9rem !important;
    }
    
    #authModal .tab-subtitle {
        font-size: 0.7rem !important;
    }
    
    #authModal .auth-form-container {
        padding: 1.5rem !important;
    }
    
    #authModal .modal-body {
        padding: 1.5rem !important;
    }
}

#authModal .nav-pills .nav-link {
    background: transparent;
    color: var(--medium-gray);
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: var(--transition);
}

#authModal .nav-pills .nav-link:hover {
    background: var(--light-gray);
    color: var(--primary-color);
}

#authModal .nav-pills .nav-link.active {
    background: var(--primary-color) !important;
    color: var(--white) !important;
}

/* These styles are now handled by universal .modal styles above */

#authModal .tab-pane {
    padding: 1rem 0;
}

#authModal .btn-checkout {
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    margin-top: 1rem;
}

#authModal .alert {
    border-radius: var(--border-radius) !important;
    border: none !important;
    font-weight: 500 !important;
}

/* These styles are now handled by universal .modal styles above */

/* Brand Search Dropdown */
#brandDropdown {
    position: absolute !important;
    top: 100% !important;
    left: 0 !important;
    right: 0 !important;
    z-index: 1050 !important;
    border: 1px solid rgba(0,0,0,0.15) !important;
    border-radius: 8px !important;
    box-shadow: var(--shadow-hover) !important;
    background: var(--white) !important;
    padding: 0.5rem 0 !important;
    margin-top: 2px !important;
}

#brandDropdown .dropdown-item {
    padding: 0.5rem 1rem !important;
    cursor: pointer !important;
    transition: var(--transition) !important;
    border: none !important;
    background: transparent !important;
    color: var(--dark-gray) !important;
    font-size: 0.9rem !important;
}

#brandDropdown .dropdown-item:hover {
    background: var(--light-gray) !important;
    color: var(--primary-color) !important;
}

#brandDropdown .dropdown-item:active {
    background: var(--primary-color) !important;
    color: var(--white) !important;
}

#brandSearch:focus + #brandDropdown {
    display: block !important;
}

#brandDropdown:hover {
    display: block !important;
}

/* Show dropdown when input is focused or has content */
#brandSearch:focus,
#brandSearch:not(:placeholder-shown) {
    border-bottom-left-radius: 0 !important;
    border-bottom-right-radius: 0 !important;
}

#brandSearch:focus + #brandDropdown,
#brandSearch:not(:placeholder-shown) + #brandDropdown {
    display: block !important;
}