/* VARIABLES */
:root {
    --primary-color: #0A2342; /* Bleu Nuit */
    --secondary-color: #2D2D2D; /* Gris Foncé */
    --accent-color: #D97706; /* Orange Cuivré */
    --alert-color: #C0392B; /* Rouge DGI */
    --light-bg: #F8F9FA;
    --white: #FFFFFF;
    --border-radius: 4px;
    --shadow: 0 4px 6px rgba(0,0,0,0.1);
}

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

body {
    font-family: 'Inter', 'Segoe UI', Arial, sans-serif;
    color: var(--secondary-color);
    line-height: 1.6;
    background-color: var(--white);
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }

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

.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: var(--border-radius);
    font-weight: 600;
    transition: all 0.3s ease;
    text-align: center;
}

.btn-primary {
    background-color: var(--accent-color);
    color: var(--white);
}
.btn-primary:hover { opacity: 0.9; transform: translateY(-2px); }

.btn-alert {
    background-color: var(--alert-color);
    color: var(--white);
    font-size: 0.9rem;
}

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

/* HEADER */
.header {
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 15px 0;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-color);
    letter-spacing: 1px;
}

.navbar .nav-menu {
    display: flex;
    gap: 25px;
    align-items: center;
}

.nav-menu a {
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--primary-color);
}

.nav-menu a:hover, .nav-menu a.active {
    color: var(--accent-color);
}

/* DROPDOWN */
.dropdown { position: relative; }
.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--white);
    box-shadow: var(--shadow);
    min-width: 220px;
    display: none;
    border-top: 3px solid var(--accent-color);
}
.dropdown:hover .dropdown-menu { display: block; }
.dropdown-menu li { padding: 10px 15px; border-bottom: 1px solid #eee; }
.dropdown-menu li:last-child { border-bottom: none; }

/* HERO */
.hero {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 80px 0;
    text-align: center;
}

.hero-content h1 {
    font-size: 2.5rem;
    margin: 20px 0;
    line-height: 1.2;
}

.hero .tag {
    background-color: rgba(255,255,255,0.1);
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
    letter-spacing: 1px;
    text-transform: uppercase;
}

/* URGENT DGI */
.section-urgent {
    padding: 60px 0;
    background-color: var(--light-bg);
}

.urgent-box {
    background: var(--white);
    border-left: 5px solid var(--alert-color);
    padding: 40px;
    box-shadow: var(--shadow);
}

.urgent-header h2 { color: var(--alert-color); margin-bottom: 20px; }

.urgent-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 30px;
}

.urgent-item {
    background: var(--light-bg);
    padding: 20px;
    border-radius: var(--border-radius);
}

.urgent-item h3 { color: var(--primary-color); margin-bottom: 10px; }

/* EXPERTISES */
.section-expertises { padding: 80px 0; }
.section-title { color: var(--primary-color); margin-bottom: 50px; font-size: 2rem; }

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.card {
    background: var(--white);
    padding: 30px;
    border: 1px solid #eee;
    border-radius: var(--border-radius);
    transition: 0.3s;
    display: block;
}

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

.card .icon { font-size: 2.5rem; margin-bottom: 20px; }
.card h3 { color: var(--primary-color); margin-bottom: 10px; }

/* PARTNERS */
.section-partners {
    background: var(--light-bg);
    padding: 40px 0;
    text-align: center;
}

.partners-list {
    margin-top: 20px;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
    font-weight: 700;
    color: #666;
    text-transform: uppercase;
}

/* PAGES INTERNES */
.page-hero {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 60px 0;
}
.page-content { padding: 60px 0; }
.service-detail ul { margin: 20px 0; }
.service-detail li {
    margin-bottom: 10px;
    padding-left: 20px;
    position: relative;
}
.service-detail li::before {
    content: "•";
    color: var(--accent-color);
    font-weight: bold;
    position: absolute;
    left: 0;
}

/* CONTACT PAGE */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}
.form-group { margin-bottom: 20px; }
.form-group label { display: block; margin-bottom: 5px; font-weight: 600; }
.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
}
.form-group textarea { height: 150px; }

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

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.logo-footer {
    color: var(--white);
    font-size: 1.5rem;
    font-weight: bold;
    display: block;
    margin-bottom: 15px;
}

.footer h4 { color: var(--white); margin-bottom: 20px; }
.footer ul li { margin-bottom: 10px; }
.footer a:hover { color: var(--accent-color); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 20px; font-size: 0.9rem; }

/* MOBILE */
.hamburger { display: none; cursor: pointer; }
.bar { display: block; width: 25px; height: 3px; margin: 5px auto; background-color: var(--primary-color); transition: 0.3s; }

@media (max-width: 768px) {
    .hamburger { display: block; }
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--white);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow);
        padding: 20px 0;
    }
    .nav-menu.active { left: 0; }
    .nav-menu li { margin: 15px 0; }
    .dropdown-menu { position: static; box-shadow: none; border-top: none; background: #f9f9f9; }
    .contact-grid { grid-template-columns: 1fr; }
    .header .btn-alert { display: none; } /* Hide alert btn on mobile menu to save space, or move it inside nav */
}


/* --- GARDER LE CSS PRÉCÉDENT --- */

/* --- AJOUTS ET CORRECTIONS POUR LES SLIDERS --- */

/* HERO SLIDER */
.hero-slider-container {
    position: relative;
    width: 100%;
    height: 600px; /* Hauteur du slider */
    overflow: hidden;
    background-color: var(--primary-color);
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.8s ease-in-out;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
}

.hero-slide.active {
    opacity: 1;
    z-index: 2;
}

/* Couche sombre sur l'image pour lisibilité du texte */
.hero-slide .overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 35, 66, 0.7); /* Bleu nuit semi-transparent */
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 3;
    color: var(--white);
    text-align: center;
    max-width: 800px;
}

.hero-content h1 {
    font-size: 2.8rem;
    margin: 20px 0;
    line-height: 1.2;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

/* Flèches de navigation */
.slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: none;
    padding: 15px;
    cursor: pointer;
    font-size: 24px;
    z-index: 10;
    transition: 0.3s;
    border-radius: 50%;
}

.slider-btn:hover {
    background: rgba(255, 255, 255, 0.5);
    color: var(--primary-color);
}

.prev { left: 20px; }
.next { right: 20px; }


/* LOGO SLIDER (MARQUEE INFINI) */
.logo-slider {
    height: 100px;
    margin: auto;
    overflow: hidden;
    position: relative;
    width: 100%;
    background: white;
}

.logo-slider::before,
.logo-slider::after {
    background: linear-gradient(to right, rgba(255,255,255,1) 0%, rgba(255,255,255,0) 100%);
    content: "";
    height: 100px;
    position: absolute;
    width: 100px;
    z-index: 2;
}

.logo-slider::after {
    right: 0;
    top: 0;
    transform: rotateZ(180deg);
}

.logo-slider::before {
    left: 0;
    top: 0;
}

.logo-slide-track {
    display: flex;
    width: calc(250px * 12); /* Largeur slide * nombre total de slides (6 originaux + 6 clones) */
    animation: scroll 30s linear infinite;
}

.slide {
    height: 100px;
    width: 250px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 20px;
}

.slide span {
    font-size: 1.2rem;
    font-weight: 800;
    color: #888;
    text-transform: uppercase;
    white-space: nowrap;
}

/* Animation Keyframes */
@keyframes scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(calc(-250px * 6)); } /* Déplacer de la moitié de la largeur totale */
}

/* Responsive Hero Text */
@media (max-width: 768px) {
    .hero-content h1 { font-size: 1.8rem; }
    .hero-slider-container { height: 500px; }
}