/* ========================================
   TechStore DZ - Site Web E-commerce
   Couleurs : Bleu professionnel + Or (Algérie)
======================================== */

:root {
    --primary: #1a5276;
    --primary-light: #2980b9;
    --primary-dark: #0e3a54;
    --secondary: #d4a017;
    --secondary-light: #f1c40f;
    --accent: #e74c3c;
    --success: #27ae60;
    --dark: #2c3e50;
    --gray: #7f8c8d;
    --light-gray: #ecf0f1;
    --white: #ffffff;
    --shadow: 0 4px 15px rgba(0,0,0,0.1);
    --shadow-hover: 0 8px 25px rgba(0,0,0,0.15);
    --radius: 12px;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--light-gray);
    color: var(--dark);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* NAVBAR */
.navbar {
    background: var(--white);
    box-shadow: var(--shadow);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary);
}

.logo i {
    font-size: 1.8rem;
    color: var(--secondary);
}

.logo small {
    font-size: 0.8rem;
    color: var(--secondary);
    background: var(--primary-dark);
    padding: 2px 6px;
    border-radius: 4px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
}

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

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary);
}

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

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.cart-icon {
    position: relative;
    cursor: pointer;
    font-size: 1.3rem;
    color: var(--primary);
    transition: var(--transition);
}

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

.cart-count {
    position: absolute;
    top: -8px;
    right: -8px;
    background: var(--accent);
    color: white;
    font-size: 0.7rem;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

/* HERO */
.hero {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding-top: 70px;
}

.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="50" cy="50" r="40" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="0.5"/></svg>');
    background-size: 200px;
    opacity: 0.5;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: var(--white);
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero .highlight {
    color: var(--secondary);
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    opacity: 0.9;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-bottom: 50px;
}

.btn {
    padding: 14px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background: var(--secondary-light);
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(212, 160, 23, 0.4);
}

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

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

.hero-features {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.feature {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.95rem;
}

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

/* STATS */
.stats {
    background: var(--white);
    padding: 50px 0;
    margin-top: -50px;
    position: relative;
    z-index: 2;
    border-radius: var(--radius) var(--radius) 0 0;
    box-shadow: var(--shadow);
}

.stats .container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    text-align: center;
}

.stat-item i {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 15px;
}

.stat-item h3 {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 5px;
}

.stat-item p {
    color: var(--gray);
    font-size: 0.9rem;
}

/* SECTIONS */
.section-title {
    text-align: center;
    font-size: 2.2rem;
    color: var(--primary);
    margin-bottom: 50px;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: var(--secondary);
    margin: 15px auto 0;
    border-radius: 2px;
}

/* CATEGORIES */
.categories {
    padding: 80px 0;
    background: var(--white);
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.category-card {
    background: var(--light-gray);
    border-radius: var(--radius);
    padding: 35px 25px;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
}

.category-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    border-color: var(--secondary);
    background: var(--white);
}

.category-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 2rem;
    color: var(--white);
    transition: var(--transition);
}

.category-card:hover .category-icon {
    background: linear-gradient(135deg, var(--secondary), var(--secondary-light));
    transform: scale(1.1);
}

.category-card h3 {
    color: var(--primary);
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.category-card p {
    color: var(--gray);
    font-size: 0.85rem;
    margin-bottom: 15px;
}

.price-from {
    display: inline-block;
    background: var(--primary);
    color: var(--white);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

/* PRODUCTS */
.products {
    padding: 80px 0;
    background: var(--light-gray);
}

.products-filter {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 25px;
    border: 2px solid var(--primary);
    background: transparent;
    color: var(--primary);
    border-radius: 25px;
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
}

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

.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.product-card {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
}

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

.product-badge {
    position: absolute;
    top: 15px;
    left: 15px;
    background: var(--primary);
    color: white;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    z-index: 1;
}

.product-badge.promo {
    background: var(--accent);
}

.product-badge.best-seller {
    background: var(--success);
}

.product-image {
    height: 180px;
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: var(--primary);
    opacity: 0.7;
}

.product-image.toner {
    color: #8e44ad;
}

.product-image.pc {
    color: #2980b9;
}

.product-image.screen {
    color: #16a085;
}

.product-info {
    padding: 20px;
}

.product-info h3 {
    font-size: 1rem;
    color: var(--primary);
    margin-bottom: 8px;
}

.product-desc {
    font-size: 0.8rem;
    color: var(--gray);
    margin-bottom: 10px;
}

.product-rating {
    color: var(--secondary);
    font-size: 0.85rem;
    margin-bottom: 12px;
}

.product-rating span {
    color: var(--gray);
    margin-left: 5px;
}

.product-price {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
}

.product-price .price {
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--accent);
}

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

.btn-add-cart {
    width: 100%;
    padding: 12px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-add-cart:hover {
    background: var(--secondary);
    color: var(--dark);
}

/* SERVICES */
.services {
    padding: 80px 0;
    background: var(--primary-dark);
    color: var(--white);
}

.services .section-title {
    color: var(--white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.service-card {
    background: rgba(255,255,255,0.1);
    border-radius: var(--radius);
    padding: 35px 25px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid rgba(255,255,255,0.1);
}

.service-card:hover {
    background: rgba(255,255,255,0.15);
    transform: translateY(-5px);
}

.service-icon {
    width: 70px;
    height: 70px;
    background: var(--secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 1.5rem;
    color: var(--dark);
}

.service-card h3 {
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.service-card p {
    opacity: 0.8;
    font-size: 0.9rem;
}

/* MARQUES */
.brands {
    padding: 60px 0;
    background: var(--white);
}

.brands-grid {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 15px;
}

.brand-logo {
    background: var(--light-gray);
    border-radius: var(--radius);
    padding: 20px;
    text-align: center;
    font-weight: bold;
    color: var(--primary);
    font-size: 0.9rem;
    transition: var(--transition);
    cursor: pointer;
}

.brand-logo:hover {
    background: var(--primary);
    color: var(--white);
    transform: scale(1.05);
}

/* CONTACT */
.contact {
    padding: 80px 0;
    background: var(--light-gray);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

.info-item i {
    width: 50px;
    height: 50px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.info-item h4 {
    color: var(--primary);
    margin-bottom: 5px;
}

.info-item p {
    color: var(--gray);
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 10px;
}

.social-links a {
    width: 45px;
    height: 45px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--secondary);
    transform: translateY(-3px);
}

.contact-form {
    background: var(--white);
    padding: 40px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid var(--light-gray);
    border-radius: 8px;
    font-size: 1rem;
    transition: var(--transition);
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* FOOTER */
.footer {
    background: var(--dark);
    color: var(--white);
    padding: 60px 0 20px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-col .logo {
    color: var(--white);
    margin-bottom: 15px;
}

.footer-col .logo i {
    color: var(--secondary);
}

.footer-col p {
    opacity: 0.8;
    font-size: 0.9rem;
}

.footer-col h4 {
    margin-bottom: 20px;
    color: var(--secondary);
}

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

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

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

.footer-col ul li a:hover {
    color: var(--secondary);
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 20px;
    text-align: center;
    opacity: 0.7;
}

/* WHATSAPP FLOAT */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: #25D366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2rem;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
    transition: var(--transition);
    z-index: 999;
    text-decoration: none;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.5);
}

/* RESPONSIVE */
@media (max-width: 1024px) {
    .categories-grid,
    .products-grid,
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .brands-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero-features {
        flex-direction: column;
        gap: 15px;
    }
    
    .stats .container {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .categories-grid,
    .products-grid,
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .brands-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

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

.product-card,
.category-card,
.service-card {
    animation: fadeInUp 0.6s ease forwards;
}