/* Variables et Reset */
:root {
    --primary-color: #000000;
    --secondary-color: #FFFFFF;
    --accent-color: #333333;
    --light-gray: #F8F8F8;
    --medium-gray: #E5E5E5;
    --dark-gray: #555555;
    --transition: all 0.3s ease;
    --box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    --border-radius: 8px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    color: var(--accent-color);
    background-color: var(--secondary-color);
    line-height: 1.6;
    font-size: 16px;
    overflow-x: hidden;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.section-title h2 {
    font-size: 2.2rem;
    color: var(--primary-color);
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-title h2::after {
    content: '';
    position: absolute;
    width: 80px;
    height: 3px;
    background-color: var(--primary-color);
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
}

.section-title p {
    max-width: 700px;
    margin: 20px auto 0;
    color: var(--dark-gray);
}

.btn {
    display: inline-block;
    background-color: var(--primary-color);
    color: var(--secondary-color);
    padding: 14px 32px;
    text-decoration: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    border: 2px solid var(--primary-color);
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

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

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

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

/* Header et Navigation */
header {
    background-color: var(--secondary-color);
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.08);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo-container {
    display: flex;
    align-items: center;
}

.logo-img {
    height: 50px;
    width: auto;
    margin-right: 10px;
}

nav ul {
    display: flex;
    list-style: none;
}

nav ul li {
    margin-left: 35px;
}

nav ul li a {
    text-decoration: none;
    color: var(--primary-color);
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    position: relative;
}

nav ul li a:hover {
    color: var(--dark-gray);
}

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

nav ul li a:hover::after {
    width: 100%;
}

.nav-active {
    color: var(--dark-gray);
}

.nav-active::after {
    width: 100% !important;
}

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

/* Hero Section - Améliorée avec image de fond */
.hero {
    padding: 120px 0 100px;
    position: relative;
    overflow: hidden;
    background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7));
    color: var(--secondary-color);
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('asset/hero-banner.jpg'); /* Votre image ici */
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: -1;
}

/* Alternative si pas d'image : */
.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #000000 0%, #333333 100%);
    z-index: -1;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 2;
}

.hero h1 {
    font-size: 3rem;
    color: var(--secondary-color);
    margin-bottom: 25px;
    line-height: 1.2;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.hero p {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 35px;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

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

.hero-btns .btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.9);
}

/* Expertise Section */
.expertise {
    padding: 100px 0;
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.expertise-card {
    background-color: var(--secondary-color);
    padding: 40px 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--medium-gray);
}

.expertise-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

.expertise-card i {
    font-size: 2.8rem;
    color: var(--primary-color);
    margin-bottom: 25px;
}

.expertise-card h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.expertise-card p {
    color: var(--dark-gray);
}

/* About Section */
.about {
    padding: 100px 0;
    background-color: var(--light-gray);
}

.about-content {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 60px;
    align-items: center;
}

.about-text h3 {
    font-size: 2rem;
    margin-bottom: 25px;
    color: var(--primary-color);
}

.about-text p {
    margin-bottom: 20px;
    color: var(--dark-gray);
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 40px;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 5px;
}

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

.about-image {
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
}

.about-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: var(--transition);
}

.about-image:hover img {
    transform: scale(1.03);
}

/* Blog Section */
.blog {
    padding: 100px 0;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    min-height: 300px;
}

.loading-spinner {
    grid-column: 1 / -1;
    text-align: center;
    padding: 40px;
    color: var(--dark-gray);
    font-size: 1.1rem;
}

.loading-spinner i {
    font-size: 2rem;
    margin-right: 10px;
    color: var(--primary-color);
}

.blog-card {
    background-color: var(--secondary-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    border: 1px solid var(--medium-gray);
    cursor: pointer;
}

.blog-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

.blog-card img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    display: block;
}

.blog-content {
    padding: 25px;
}

.blog-content h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
    color: var(--primary-color);
    line-height: 1.4;
}

.blog-content p {
    color: var(--dark-gray);
    margin-bottom: 20px;
    font-size: 0.95rem;
}

.blog-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--dark-gray);
    margin-bottom: 20px;
}

.read-more {
    color: var(--primary-color);
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
}

.read-more i {
    margin-left: 8px;
    transition: var(--transition);
}

.read-more:hover i {
    transform: translateX(5px);
}

/* =================== */
/* SECTION PARTENAIRES */
/* =================== */

/* =================== */
/* SECTION PARTENAIRES - AMÉLIORÉE */
/* =================== */

.partners {
    padding: 80px 0;
    background-color: var(--light-gray);
    overflow: hidden;
    position: relative;
}

.partners::before,
.partners::after {
    content: '';
    position: absolute;
    top: 0;
    width: 100px;
    height: 100%;
    z-index: 2;
}

.partners::before {
    left: 0;
    background: linear-gradient(to right, var(--light-gray), transparent);
}

.partners::after {
    right: 0;
    background: linear-gradient(to left, var(--light-gray), transparent);
}

.partners-slider {
    position: relative;
    overflow: hidden;
    padding: 30px 0;
    width: 100%;
    mask-image: linear-gradient(to right, 
        transparent 0%, 
        black 10%, 
        black 90%, 
        transparent 100%
    );
}

.partners-track {
    display: flex;
    animation: scroll 30s linear infinite;
    width: max-content;
}




.partner-item {
    flex: 0 0 180px;
    margin: 0 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100px;
    padding: 10px;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.partner-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.partner-logo {
    max-width: 100%;
    max-height: 70px;
    object-fit: contain;
    opacity: 0.8;
    transition: all 0.3s ease;
}

.partner-logo:hover {
    filter: grayscale(0%);
    opacity: 1;
    transform: scale(1.05);
}

@keyframes scroll {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(calc(-180px * 24)); /* Tous les logos */
    }
}

/* Responsive pour le défilement */
@media (max-width: 768px) {
    .partner-item {
        flex: 0 0 140px;
        margin: 0 10px;
    }
    
    @keyframes scroll {
        0% {
            transform: translateX(0);
        }
        100% {
            transform: translateX(calc(-140px * 12));
        }
    }
}

/* =================== */
/* Contact Section */
/* =================== */
.contact {
    padding: 100px 0;
}

.contact-container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 60px;
}

.contact-info h3 {
    font-size: 2rem;
    margin-bottom: 25px;
    color: var(--primary-color);
}

.contact-info p {
    margin-bottom: 30px;
    color: var(--dark-gray);
}

.contact-details {
    margin-bottom: 30px;
}

.contact-detail {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
}

.contact-detail i {
    font-size: 1.2rem;
    color: var(--primary-color);
    margin-right: 15px;
    width: 30px;
}

.contact-form input,
.contact-form textarea,
.contact-form select {
    width: 100%;
    padding: 14px;
    margin-bottom: 22px;
    border: 1px solid var(--medium-gray);
    border-radius: var(--border-radius);
    font-size: 1rem;
    background-color: var(--secondary-color);
    transition: var(--transition);
}

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

.contact-form textarea {
    min-height: 180px;
    resize: vertical;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

/* Footer */
footer {
    background-color: var(--primary-color);
    color: var(--secondary-color);
    padding: 70px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    margin-bottom: 50px;
}

.footer-column h3 {
    font-size: 1.3rem;
    margin-bottom: 25px;
    position: relative;
    padding-bottom: 10px;
}

.footer-column h3::after {
    content: '';
    position: absolute;
    width: 40px;
    height: 2px;
    background-color: var(--secondary-color);
    bottom: 0;
    left: 0;
}

.footer-column p {
    margin-bottom: 20px;
    color: var(--medium-gray);
    line-height: 1.7;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links li a {
    color: var(--medium-gray);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links li a:hover {
    color: var(--secondary-color);
    padding-left: 5px;
}

.social-icons {
    display: flex;
    gap: 15px;
    margin-top: 25px;
}

.social-icons a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--secondary-color);
    border-radius: 50%;
    transition: var(--transition);
}

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

.copyright {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--medium-gray);
    font-size: 0.9rem;
}

/* =================== */
/* Modal pour les articles */
/* =================== */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    z-index: 2000;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal-overlay.active {
    display: block;
    opacity: 1;
}

.modal-container {
    position: relative;
    width: 90%;
    max-width: 800px;
    max-height: 90vh;
    margin: 5vh auto;
    background-color: var(--secondary-color);
    border-radius: var(--border-radius);
    overflow-y: auto;
    transform: translateY(-20px);
    transition: transform 0.3s ease;
}

.modal-overlay.active .modal-container {
    transform: translateY(0);
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--primary-color);
    cursor: pointer;
    z-index: 2001;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
}

.modal-close:hover {
    background-color: var(--light-gray);
}

.modal-content {
    padding: 40px;
}

.modal-content h2 {
    color: var(--primary-color);
    margin-bottom: 20px;
    font-size: 2rem;
}

.modal-meta {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
    color: var(--dark-gray);
    font-size: 0.9rem;
}

.modal-content img {
    width: 100%;
    max-height: 400px;
    object-fit: cover;
    border-radius: var(--border-radius);
    margin-bottom: 30px;
}

.modal-body {
    line-height: 1.8;
    color: var(--accent-color);
}

.modal-body p {
    margin-bottom: 20px;
}

/* =================== */
/* Responsive */
/* =================== */
@media (max-width: 1100px) {
    .expertise-grid,
    .blog-grid,
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 900px) {
    .about-content,
    .contact-container,
    .blog-page-content {
        grid-template-columns: 1fr;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero p {
        font-size: 1.1rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    nav ul {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        flex-direction: column;
        background-color: var(--secondary-color);
        padding: 30px;
        box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
        transition: var(--transition);
        z-index: 999;
    }
    
    nav ul.active {
        left: 0;
    }
    
    nav ul li {
        margin: 0 0 25px 0;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero h1 {
        font-size: 2.2rem;
    }
    
    .hero-btns {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-btns .btn {
        width: 100%;
        max-width: 300px;
        margin-bottom: 15px;
    }
    
    .section-title h2 {
        font-size: 1.9rem;
    }
    
    .partners-track {
        animation: scroll-mobile 35s linear infinite;
    }
    
    .partner-item {
        flex: 0 0 140px;
        margin: 0 10px;
    }
    
    @keyframes scroll-mobile {
        0% {
            transform: translateX(0);
        }
        100% {
            transform: translateX(calc(-140px * 24));
        }
    }
    
    .modal-container {
        width: 95%;
        margin: 2vh auto;
    }
    
    .modal-content {
        padding: 30px 20px;
    }
}

@media (max-width: 600px) {
    .expertise-grid,
    .blog-grid,
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .about-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero h1 {
        font-size: 1.9rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .partner-item {
        flex: 0 0 120px;
        margin: 0 8px;
    }
}