/* Modern E-Commerce Theme */

:root {
    --primary-color: #FF6B35;
    --secondary-color: #004E89;
    --accent-color: #F7B801;
    --light-bg: #F5F5F5;
    --dark-text: #333333;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--dark-text);
    background-color: #ffffff;
}

/* Header Styles */
.site-header {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
    color: white;
    padding: 1rem 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.navbar-brand {
    font-size: 1.8rem;
    font-weight: bold;
    color: white !important;
}

.navbar-brand:hover {
    color: var(--accent-color) !important;
}

.nav-link {
    color: white !important;
    margin: 0 1rem;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: var(--accent-color) !important;
}

/* Product Grid */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.product-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.product-image-link {
    display: block;
    text-decoration: none;
    transition: opacity 0.3s ease;
}

.product-image-link:hover {
    opacity: 0.9;
}

.product-image {
    width: 100%;
    height: 250px;
    object-fit: cover;
    background: linear-gradient(135deg, var(--light-bg), #e0e0e0);
    transition: transform 0.3s ease;
}

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

.product-body {
    padding: 1.5rem;
}

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

.product-title a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

.product-title a:hover {
    color: var(--primary-color);
}

.product-category {
    font-size: 0.85rem;
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: 1rem;
    text-transform: uppercase;
}

.product-price {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.product-stock {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 1rem;
}

.btn-add-cart {
    width: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    padding: 0.75rem;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-add-cart:hover {
    transform: scale(1.02);
    box-shadow: 0 4px 12px rgba(255, 107, 53, 0.3);
    color: white;
}

/* Auth Modal */
.auth-modal {
    display: none;
    position: fixed;
    z-index: 1050;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    animation: fadeIn 0.3s ease;
}

.auth-modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
}

.auth-modal-content {
    background: white;
    border-radius: 12px;
    width: 90%;
    max-width: 450px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    overflow: hidden;
    animation: slideUp 0.3s ease;
}

.auth-modal-header {
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
    color: white;
    padding: 2rem;
    text-align: center;
}

.auth-modal-header h2 {
    margin: 0;
    font-size: 1.8rem;
}

.auth-modal-body {
    padding: 2rem;
}

.auth-tabs {
    display: flex;
    border-bottom: 2px solid var(--light-bg);
    margin-bottom: 2rem;
}

.auth-tab {
    flex: 1;
    padding: 1rem;
    text-align: center;
    cursor: pointer;
    border-bottom: 3px solid transparent;
    color: #999;
    font-weight: 600;
    transition: all 0.3s ease;
}

.auth-tab.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.auth-form {
    display: none;
}

.auth-form.active {
    display: block;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--dark-text);
}

.form-group input {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

.btn-submit {
    width: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    padding: 0.85rem;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 107, 53, 0.3);
}

.btn-close-modal {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: white;
}

/* Header Auth Button */
.header-auth-btn {
    background: var(--accent-color) !important;
    color: var(--dark-text) !important;
    padding: 0.6rem 1.5rem !important;
    border-radius: 50px !important;
    font-weight: 600 !important;
    transition: all 0.3s ease !important;
}

.header-auth-btn:hover {
    background: white !important;
    transform: scale(1.05) !important;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        transform: translateY(30px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* Responsive */
@media (max-width: 768px) {
    .products-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: 1rem;
    }

    .auth-modal-content {
        width: 95%;
    }

    .product-card {
        margin-bottom: 1rem;
    }

    .nav-link {
        margin: 0.5rem 0;
    }
}

@media (max-width: 480px) {
    .products-grid {
        grid-template-columns: 1fr;
    }

    .product-image {
        height: 200px;
    }
}