:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #60a5fa;
    --secondary: #1e293b;
    --text: #1e293b;
    --text-light: #64748b;
    --background: #f8fafc;
    --white: #ffffff;
    --success: #22c55e;
    --border: #e2e8f0;
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: system-ui, -apple-system, sans-serif;
    line-height: 1.5;
    color: var(--text);
    background: var(--background);
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Navigation Header */
.main-nav {
    background: var(--secondary);
    color: var(--white);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: auto;
    padding: 0 2rem;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 1.5rem;
}

.nav-links a {
    color: var(--white);
    text-decoration: none;
    font-weight: bold;
    transition: var(--transition);
}

.nav-links a:hover {
    text-decoration: underline;
    color: var(--primary-light);
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
}

/* Typography */
h1, h2, h3 {
    line-height: 1.2;
    font-weight: 700;
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.5rem; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: 0.5rem;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn svg {
    width: 1.25rem;
    height: 1.25rem;
}

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

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

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

.btn-whatsapp:hover {
    filter: brightness(1.1);
    transform: translateY(-2px);
}

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

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

/* Hero Section */
.hero {
    position: relative;
    height: 70vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    text-align: center;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(0,0,0,0.7), rgba(0,0,0,0.5), rgba(0,0,0,0.7));
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    padding: 2rem;
}

.hero h1 {
    margin-bottom: 1rem;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

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

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Features Section */
.features {
    padding: 6rem 0;
    background: var(--white);
}

.features h2 {
    text-align: center;
    margin-bottom: 4rem;
    color: var(--text);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    padding: 2rem;
    border-radius: 1rem;
    background: linear-gradient(145deg, #f8fafc, #f1f5f9);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-icon-wrapper {
    margin-bottom: 1.5rem;
}

.feature-icon {
    width: 4rem;
    height: 4rem;
    background: var(--primary);
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transform: rotate(-6deg);
    transition: var(--transition);
}

.feature-card:hover .feature-icon {
    transform: rotate(0);
}

.feature-icon svg {
    color: var(--white);
    width: 2rem;
    height: 2rem;
}

.feature-card h3 {
    margin-bottom: 0.5rem;
    color: var(--text);
}

.feature-line {
    width: 3rem;
    height: 2px;
    background: var(--primary);
    margin: 1rem 0;
    transform: scaleX(0);
    transition: transform 0.3s ease;
    transform-origin: left;
}

.feature-card:hover .feature-line {
    transform: scaleX(1);
}

.feature-card p {
    color: var(--text-light);
    margin-top: auto;
}

/* Services Section */
.services {
    position: relative;
    padding: 8rem 0;
    color: var(--white);
    overflow: hidden;
}

.services-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.services-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(30, 58, 138, 0.95), rgba(0, 0, 0, 0.8));
}

.services .container {
    position: relative;
    z-index: 1;
}

.services h2 {
    text-align: center;
    margin-bottom: 4rem;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-card {
    position: relative;
    height: 300px;
    border-radius: 1rem;
    overflow: hidden;
}

.service-glow {
    position: absolute;
    inset: 0.5px;
    background: linear-gradient(to right, var(--primary), var(--primary-light));
    border-radius: 1rem;
    filter: blur(20px);
    opacity: 0.75;
    transition: var(--transition);
}

.service-card:hover .service-glow {
    opacity: 1;
    filter: blur(15px);
}

.service-content {
    position: relative;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    padding: 2rem;
    border-radius: 1rem;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.service-icon {
    width: 3rem;
    height: 3rem;
    background: var(--primary);
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    transform: rotate(-12deg);
    transition: var(--transition);
}

.service-card:hover .service-icon {
    transform: rotate(0);
}

.service-icon svg {
    color: var(--white);
    width: 1.5rem;
    height: 1.5rem;
}

.service-line {
    width: 3rem;
    height: 2px;
    background: var(--primary);
    margin: 1rem 0;
    transform: scaleX(0);
    transition: transform 0.3s ease;
    transform-origin: left;
}

.service-card:hover .service-line {
    transform: scaleX(1);
}

.service-content h3 {
    margin-bottom: 0.5rem;
}

.service-content p {
    color: rgba(255, 255, 255, 0.8);
    margin-top: auto;
}

/* Contact Section */
.contact {
    padding: 6rem 0;
    background: linear-gradient(135deg, var(--primary), #1e40af);
    color: var(--white);
}

.contact-header {
    text-align: center;
    margin-bottom: 4rem;
}

.contact-header p {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    margin-top: 1rem;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
}

.contact-info {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 2rem;
    border-radius: 1rem;
    height: fit-content;
}

.contact-details {
    margin-top: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.contact-icon {
    padding: 0.75rem;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-icon svg {
    width: 1.5rem;
    height: 1.5rem;
}

.contact-item .label {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.contact-form-wrapper {
    background: var(--white);
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.contact-form {
    padding: 2rem;
}

.contact-form h3 {
    color: var(--text);
    margin-bottom: 2rem;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

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

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text);
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    transition: var(--transition);
    font-size: 1rem;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Footer */
footer {
    background: var(--secondary);
    color: var(--white);
    padding: 3rem 0;
    text-align: center;
}

footer h3 {
    margin-bottom: 1rem;
}

footer p {
    color: #94a3b8;
    margin-bottom: 1.5rem;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.social-link {
    color: var(--white);
    opacity: 0.8;
    transition: var(--transition);
    padding: 0.5rem;
}

.social-link:hover {
    opacity: 1;
    color: var(--primary);
    transform: translateY(-2px);
}

.social-link svg {
    width: 1.5rem;
    height: 1.5rem;
}

.copyright {
    font-size: 0.875rem;
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 1.5rem;
    height: 1.5rem;
    border: 3px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    border-top-color: var(--white);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* === Catalogue - Filtres et tri === */
.filters {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 2rem;
    justify-content: space-between;
    align-items: center;
}

.filters select {
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    border: 1px solid var(--border);
    background: var(--white);
    color: var(--text);
    font-size: 1rem;
    transition: var(--transition);
}

.filters select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-buttons .btn {
        width: 100%;
        justify-content: center;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
    }
    
    .features-grid,
    .services-grid {
        grid-template-columns: 1fr;
    }
}
/* === Catalogue - Barre de recherche === */
.search-bar {
    margin: 2rem 0 1rem;
    text-align: center;
}
.search-bar input {
    padding: 0.75rem 1.2rem;
    font-size: 1rem;
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    width: 100%;
    max-width: 500px;
    transition: var(--transition);
}

/* === Catalogue - Mise en page boutique === */
.catalogue-layout {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
}

/* === Filtres à gauche === */
.filters {
    flex: 1;
    min-width: 250px;
    background: #f1f5f9;
    padding: 1.5rem;
    border-radius: 1rem;
    box-shadow: var(--shadow);
}
.filters h3 {
    margin-bottom: 1rem;
    font-size: 1.25rem;
}
.filter-group {
    margin-bottom: 1.5rem;
}
.filter-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
}
.filter-group select {
    width: 100%;
    padding: 0.5rem 1rem;
    font-size: 1rem;
    border-radius: 0.5rem;
    border: 1px solid var(--border);
}

/* === Grille des produits au centre === */
.product-grid {
    flex: 3;
    display: grid;
    gap: 2rem;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* === Responsive Adaptation === */
@media (max-width: 992px) {
    .catalogue-layout {
        flex-direction: column;
    }
    .filters {
        width: 100%;
    }
}