/* ===== Reset & Base Styles ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Colors */
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary-color: #10b981;
    --accent-color: #f59e0b;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;
    --background: #ffffff;
    --background-light: #f9fafb;
    --background-dark: #f3f4f6;
    --border-color: #e5e7eb;
    --shadow-light: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Typography */
    --font-primary: 'Cairo', sans-serif;
    --font-secondary: 'Inter', sans-serif;
    
    /* Spacing */
    --container-max-width: 1200px;
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Transitions */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    color: var(--text-primary);
    background-color: var(--background);
    line-height: 1.6;
    overflow-x: hidden;
}

/* ===== Container ===== */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

/* ===== Header & Navigation ===== */
.header {
    background: var(--background);
    box-shadow: var(--shadow-md);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: var(--transition-normal);
}

.navbar {
    padding: var(--spacing-md) 0;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h1 {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin: 0;
}

.logo i {
    margin-left: var(--spacing-sm);
    color: var(--accent-color);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
}

.nav-menu a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-fast);
    position: relative;
}

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

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition-fast);
}

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.search-box {
    display: flex;
    position: relative;
}

.search-box input {
    width: 250px;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-size: 0.9rem;
    outline: none;
    transition: var(--transition-fast);
}

.search-box input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.search-btn {
    position: absolute;
    left: var(--spacing-sm);
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    transition: var(--transition-fast);
}

.search-btn:hover {
    color: var(--primary-color);
}

.cart-icon {
    position: relative;
    cursor: pointer;
    padding: var(--spacing-sm);
    color: var(--text-primary);
    font-size: 1.2rem;
    transition: var(--transition-fast);
}

.cart-icon:hover {
    color: var(--primary-color);
}

.cart-count {
    position: absolute;
    top: -5px;
    right: -5px;
    background: var(--accent-color);
    color: white;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 600;
}

.mobile-menu-toggle {
    display: none;
    cursor: pointer;
    font-size: 1.5rem;
    color: var(--text-primary);
}

/* ===== Hero Section ===== */
.hero {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    padding: 120px 0 80px;
    margin-top: 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::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"><circle cx="20" cy="20" r="2" fill="rgba(255,255,255,0.1)"/><circle cx="80" cy="20" r="2" fill="rgba(255,255,255,0.1)"/><circle cx="50" cy="50" r="2" fill="rgba(255,255,255,0.1)"/><circle cx="20" cy="80" r="2" fill="rgba(255,255,255,0.1)"/><circle cx="80" cy="80" r="2" fill="rgba(255,255,255,0.1)"/></svg>');
    opacity: 0.1;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-2xl);
    color: rgba(255, 255, 255, 0.9);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
    flex-wrap: wrap;
}

.hero-features .feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.1);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
}

.hero-features .feature i {
    font-size: 1.2rem;
    color: var(--accent-color);
}

.cta-button {
    background: var(--accent-color);
    color: white;
    border: none;
    padding: var(--spacing-md) var(--spacing-2xl);
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-lg);
}

.cta-button:hover {
    background: #d97706;
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.cta-button i {
    margin-right: var(--spacing-sm);
}

/* ===== Section Titles ===== */
.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-2xl);
    color: var(--text-primary);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--primary-color);
    border-radius: var(--radius-sm);
}

/* ===== Categories Section ===== */
.categories {
    padding: var(--spacing-2xl) 0;
    background: var(--background-light);
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
}

.category-card {
    background: var(--background);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(37, 99, 235, 0.1), transparent);
    transition: var(--transition-slow);
}

.category-card:hover::before {
    left: 100%;
}

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

.category-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
}

.category-icon i {
    font-size: 2rem;
    color: white;
}

.category-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.category-card p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.category-count {
    background: var(--primary-color);
    color: white;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-lg);
    font-size: 0.9rem;
    font-weight: 500;
}

/* ===== Products Section ===== */
.products {
    padding: var(--spacing-2xl) 0;
}

.products-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-2xl);
    flex-wrap: wrap;
    gap: var(--spacing-lg);
}

.filter-controls {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.filter-btn {
    background: var(--background-dark);
    border: 2px solid var(--border-color);
    color: var(--text-secondary);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: var(--transition-fast);
    font-weight: 500;
}

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

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.product-card {
    background: var(--background);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    cursor: pointer;
}

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

.product-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

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

.product-image i {
    font-size: 3rem;
    color: white;
    opacity: 0.8;
}

.product-badge {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    background: var(--accent-color);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 600;
}

.product-info {
    padding: var(--spacing-lg);
}

.product-category {
    color: var(--primary-color);
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
}

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

.product-description {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-md);
    line-height: 1.5;
}

.product-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.product-rating {
    display: flex;
    gap: var(--spacing-xs);
}

.product-rating i {
    color: var(--accent-color);
    font-size: 0.9rem;
}

.product-rating .rating-text {
    color: var(--text-light);
    font-size: 0.8rem;
    margin-right: var(--spacing-sm);
}

.product-price {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.product-price .price {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
}

.product-price .old-price {
    font-size: 0.9rem;
    color: var(--text-light);
    text-decoration: line-through;
}

.product-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.btn {
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition-fast);
    text-align: center;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
}

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

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

.btn-secondary {
    background: var(--background-dark);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--border-color);
}

.load-more-container {
    text-align: center;
}

.load-more-btn {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: var(--spacing-md) var(--spacing-2xl);
    border-radius: var(--radius-lg);
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition-normal);
}

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

/* ===== About Section ===== */
.about {
    padding: var(--spacing-2xl) 0;
    background: var(--background-light);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.about-text h2 {
    font-size: 2rem;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.about-text p {
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: var(--spacing-xl);
}

.stats {
    display: flex;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.stat {
    text-align: center;
}

.stat h3 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.stat p {
    color: var(--text-secondary);
    font-weight: 500;
    margin: 0;
}

.about-features {
    display: grid;
    gap: var(--spacing-lg);
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--background);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-light);
}

.feature-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-top: var(--spacing-xs);
}

.feature-item h4 {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-xs);
}

.feature-item p {
    margin: 0;
    font-size: 0.9rem;
}

/* ===== Contact Section ===== */
.contact {
    padding: var(--spacing-2xl) 0;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
}

.contact-info {
    display: grid;
    gap: var(--spacing-xl);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--background-light);
    border-radius: var(--radius-lg);
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-top: var(--spacing-xs);
}

.contact-item h4 {
    margin-bottom: var(--spacing-xs);
}

.contact-item p {
    margin: 0;
    color: var(--text-secondary);
}

.contact-form {
    background: var(--background);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: var(--font-primary);
    outline: none;
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.submit-btn {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: var(--spacing-md) var(--spacing-2xl);
    border-radius: var(--radius-lg);
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition-normal);
    width: 100%;
}

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

/* ===== Footer ===== */
.footer {
    background: var(--text-primary);
    color: white;
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-section h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-lg);
    color: white;
}

.footer-section h4 {
    margin-bottom: var(--spacing-md);
    color: white;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

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

.footer-section ul li {
    margin-bottom: var(--spacing-sm);
}

.footer-section ul li a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition-fast);
}

.footer-section ul li a:hover {
    color: white;
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.social-links a {
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    text-decoration: none;
    transition: var(--transition-fast);
}

.social-links a:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.newsletter {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.newsletter input {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    border-radius: var(--radius-md);
    outline: none;
}

.newsletter button {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition-fast);
}

.newsletter button:hover {
    background: var(--primary-dark);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    margin: 0;
}

/* ===== Modal ===== */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: var(--background);
    margin: 5% auto;
    padding: 0;
    border-radius: var(--radius-xl);
    max-width: 800px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    box-shadow: var(--shadow-xl);
}

.close {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    color: var(--text-light);
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    z-index: 10;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.close:hover {
    background: var(--background);
    color: var(--text-primary);
}

.modal-body {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    min-height: 400px;
}

.product-preview {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-2xl);
}

.product-preview img {
    max-width: 100%;
    max-height: 300px;
    object-fit: cover;
    border-radius: var(--radius-lg);
}

.product-details {
    padding: var(--spacing-2xl);
}

.product-details h2 {
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.product-details p {
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.product-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.buy-btn,
.cart-btn {
    flex: 1;
    padding: var(--spacing-md);
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition-fast);
}

.buy-btn {
    background: var(--primary-color);
    color: white;
}

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

.cart-btn {
    background: var(--background-dark);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

.cart-btn:hover {
    background: var(--border-color);
}

.product-features {
    background: var(--background-light);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    margin-top: var(--spacing-lg);
}

.product-features h4 {
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.product-features ul {
    list-style: none;
    padding: 0;
}

.product-features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
}

.product-features li i {
    color: var(--secondary-color);
}

/* ===== Loading Spinner ===== */
.loading-spinner {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.9);
    z-index: 3000;
    justify-content: center;
    align-items: center;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 5px solid var(--border-color);
    border-top: 5px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ===== Utilities ===== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.hidden { display: none !important; }
.visible { display: block !important; }

.fade-in {
    animation: fadeIn 0.5s ease-in-out;
}

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

.slide-up {
    animation: slideUp 0.5s ease-out;
}

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