@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;600;700&display=swap');

/* --- Variables & Global Styles --- */
:root {
    --primary-color: #8cb66e; /* Vert clair (logo) */
    --primary-color-darker: #529550; /* Vert foncé (logo) */
    --dark-color: #000000;    /* Noir (logo) */
    --light-color: #ffffff;   /* Fond blanc */
    --grey-color: #6c757d;
    --white-color: #ffffff;
    --font-family: 'Poppins', sans-serif;
    --border-radius: 8px;
}

/* --- Base & Typography --- */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    line-height: 1.7;
    background-color: var(--light-color);
    color: var(--dark-color);
    font-weight: 400;
}

.container {
    max-width: 1140px;
    margin: auto;
    padding: 0 1.5rem;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--primary-color-darker);
}

h1, h2, h3, h4 {
    line-height: 1.3;
    margin-bottom: 1.5rem;
    font-weight: 600;
    letter-spacing: -0.5px;
}

h1 { font-size: 2.8rem; }
h2 { font-size: 2.2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.2rem; }


img {
    max-width: 100%;
    height: auto;
}

/* --- Animations --- */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in-up {
    animation: fadeInUp 0.8s ease-out forwards;
    opacity: 0;
}
.animate-delay-1 { animation-delay: 0.2s; }
.animate-delay-2 { animation-delay: 0.4s; }

.fade-in-section {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in-section.is-visible {
    opacity: 1;
    transform: translateY(0);
}


/* --- Layout & Navigation --- */
.main-header {
    background: var(--white-color);
    padding: 1rem 0;
    border-bottom: 1px solid #dee2e6;
    position: sticky;
    top: 0;
    z-index: 1030;
    transition: box-shadow 0.3s ease;
}

.main-header.scrolled {
    box-shadow: 0 4px 10px rgba(0,0,0,0.05);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark-color);
}

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

.main-nav a {
    padding: 0.5rem 1rem;
    font-weight: 600;
    color: var(--dark-color);
    position: relative;
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

.main-nav a:hover::after,
.main-nav a.active::after {
    width: 50%;
}


/* --- Buttons --- */
.btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
}

.btn-primary {
    background-image: linear-gradient(to right, var(--primary-color) 0%, var(--primary-color-darker) 100%);
    color: var(--white-color);
    box-shadow: 0 4px 15px rgba(82, 149, 80, 0.2);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 7px 20px rgba(82, 149, 80, 0.3);
}

/* --- Hero Section --- */
.hero {
    position: relative;
    height: 60vh;
    min-height: 400px;
    max-height: 600px;
    color: var(--white-color);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.hero-slider {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.hero-slider .swiper-slide {
    background-size: cover;
    background-position: center top;
}

.hero-slider::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.cta-button {
    display: inline-block;
    padding: 0.8rem 2rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid var(--white-color);
    background-color: transparent;
    color: var(--white-color);
    margin-top: 1.5rem;
}

.cta-button:hover {
    background-color: var(--white-color);
    color: var(--dark-color);
}

/* Swiper Controls */
.hero-slider .swiper-button-next, 
.hero-slider .swiper-button-prev {
    color: var(--white-color);
    transition: opacity 0.3s ease;
}

.hero-slider .swiper-button-next:hover, 
.hero-slider .swiper-button-prev:hover {
    opacity: 0.7;
}

.hero-slider .swiper-pagination-bullet {
    background-color: rgba(255, 255, 255, 0.7);
    width: 10px;
    height: 10px;
    opacity: 1;
    transition: background-color 0.3s ease;
}

.hero-slider .swiper-pagination-bullet-active {
    background-color: var(--white-color);
}


/* --- Slider --- */
.slider-container {
    position: relative;
    margin: 2rem auto;
    overflow: hidden;
    border-radius: var(--border-radius);
}

.slider {
    display: flex;
    transition: transform 0.5s ease-in-out;
}

.slide {
    min-width: 100%;
    background: var(--white-color);
}

.slide-controls {
    position: absolute;
    top: 50%;
    width: 100%;
    display: flex;
    justify-content: space-between;
    transform: translateY(-50%);
    z-index: 5;
}

.slide-controls button {
    background: rgba(0,0,0,0.4);
    color: white;
    border: none;
    padding: 0.75rem;
    cursor: pointer;
    transition: background-color 0.3s ease;
}
.slide-controls button:hover {
    background: rgba(0,0,0,0.7);
}

.slide-pagination {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    z-index: 5;
}

.slide-pagination .dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.6);
    margin: 0 5px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.slide-pagination .dot.active {
    background: var(--white-color);
}

.image-slider .slide {
    min-height: 500px;
    background-size: cover;
    background-position: center;
}

.image-slider.slider-container {
    max-width: 100%;
    border-radius: 0;
}

/* --- Content Sections --- */
.section-title {
    text-align: center;
    margin-top: 5rem;
    margin-bottom: 4rem;
    font-size: 2.5rem;
    font-weight: 700;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.card {
    background: var(--white-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
    transition: transform 0.4s ease, box-shadow 0.4s ease;
    border: 1px solid #e9ecef;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

.card-img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.card:hover .card-img {
    transform: scale(1.05);
}

.card-body {
    padding: 2rem;
}

.card-body h3 {
    color: var(--dark-color);
    font-weight: 700;
}

/* --- Reports List --- */
.report-list ul {
    list-style: none;
    border: 1px solid #e9ecef;
    border-radius: var(--border-radius);
    overflow: hidden;
}

.report-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid #e9ecef;
    transition: background-color 0.3s ease;
}
.report-item:hover {
    background-color: #f8f9fa;
}

.report-item:last-child {
    border-bottom: none;
}

/* --- Contact Form & Career Sections --- */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.8rem 1rem;
    border: 1px solid #ced4da;
    border-radius: var(--border-radius);
    font-family: inherit;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(140, 182, 110, 0.25);
}

.career-section {
    background: var(--white-color);
    padding: 2.5rem;
    margin-bottom: 2rem;
    border-radius: var(--border-radius);
    border: 1px solid #e9ecef;
    box-shadow: 0 5px 20px rgba(0,0,0,0.03);
}

/* --- Showcase Sections (Services & Projects) --- */
.showcase-section {
    position: relative;
    padding: 4rem 3rem;
    margin-bottom: 2rem;
    border-radius: var(--border-radius);
    color: var(--white-color);
    z-index: 1;
    overflow: hidden;
    display: flex;
    align-items: center;
    min-height: 350px;
}

.showcase-section::before { /* The background image */
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    z-index: -2;
    transition: transform 0.4s ease;
}

.showcase-section:hover::before {
    transform: scale(1.05);
}

.showcase-section::after { /* The overlay */
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(0,0,0,0.7) 0%, rgba(0,0,0,0.1) 100%);
    z-index: -1;
}

.showcase-content {
    max-width: 90%;
}

.showcase-section h2, .showcase-section h3 {
    color: var(--white-color);
    margin-bottom: 1.5rem;
    font-size: 2rem;
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.6);
}

.showcase-section p {
    text-shadow: 1px 1px 2px rgba(0,0,0,0.7);
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.showcase-section ul {
    list-style: none;
    padding-left: 0;
}

.showcase-section li {
    margin-bottom: 0.8rem;
    padding-left: 2rem;
    position: relative;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.7);
}

.showcase-section li::before {
    content: '✓';
    font-weight: bold;
    color: var(--primary-color);
    position: absolute;
    left: 0;
    font-size: 1.2rem;
    text-shadow: none;
}

/* BG Images for Service Depts */
#dept-environnement::before { background-image: url('../assets/img/D1.jpeg'); }
#dept-developpement::before { background-image: url('../assets/img/service-developpement-local.jpeg'); }
#dept-geniecivil::before { background-image: url('../assets/img/service-genie-civil.jpeg'); }
#dept-ingenierie::before { background-image: url('../assets/img/D4.jpeg'); }

/* BG Images for Homepage Projects */
#project-amenagement::before { background-image: url('../assets/img/projet-amenagement-forestier.jpg'); }
#project-solaire::before { background-image: url('../assets/img/projet-parc-solaire.jpg'); }


/* --- Footer --- */
.main-footer {
    background: #1a1a1a;
    color: var(--grey-color);
    padding: 5rem 0;
    margin-top: 6rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
}

.footer-grid h4 {
    color: var(--white-color);
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.social-links a {
    margin-right: 1rem;
    font-size: 1.5rem;
    transition: color 0.3s ease;
}
.social-links a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid #333;
}

/* --- Partners Section --- */
.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 2.5rem;
    align-items: center;
    justify-items: center;
    margin-bottom: 5rem;
}

.partner-logo img {
    max-width: 140px;
    transition: all 0.4s ease;
}

.partner-logo:hover img {
    transform: scale(1.1);
}

/* --- Back to Top Button --- */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: var(--primary-color);
    color: var(--white-color);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    z-index: 1000;
    box-shadow: 0 5px 15px rgba(0,0,0,0.15);
}

.back-to-top:hover {
    background: var(--primary-color-darker);
    transform: translateY(-3px);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

/* --- Responsive Design --- */
.mobile-nav-toggle { display: none; }

@media (max-width: 768px) {
    h1 { font-size: 2.2rem; }
    h2 { font-size: 1.8rem; }
    .hero-content h1 { font-size: 2.5rem; }

    .main-nav {
        position: fixed;
        z-index: 1000;
        inset: 0 0 0 30%;
        flex-direction: column;
        padding: min(20vh, 10rem) 2em;
        background: hsl(0 0% 100% / 0.1);
        backdrop-filter: blur(1.5rem);
        transform: translateX(100%);
        transition: transform 350ms ease-out;
    }

    .main-nav[data-visible="true"] {
        transform: translateX(0%);
    }
    
    .main-nav ul {
        flex-direction: column;
        align-items: flex-start;
        gap: 2rem;
    }

    .main-nav a {
        font-size: 1.2rem;
        color: var(--dark-color);
        font-weight: bold;
    }
    
    .main-nav a:hover,
    .main-nav a:focus {
        color: var(--primary-color);
    }

    .mobile-nav-toggle {
        display: block;
        position: absolute;
        z-index: 9999;
        background-color: transparent;
        background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgb(30, 41, 59)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        background-repeat: no-repeat;
        background-position: center;
        width: 2rem;
        aspect-ratio: 1;
        top: 2rem;
        right: 2rem;
        border: 0;
        cursor: pointer;
    }

    .mobile-nav-toggle[aria-expanded="true"] {
        background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgb(30, 41, 59)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M6 6l18 18M24 6L6 24'/%3e%3c/svg%3e");
    }

    .hero {
        height: 50vh;
    }

    .project-card-horizontal {
        flex-direction: column;
    }

    .project-card-horizontal .project-image-wrapper {
        width: 100%;
        height: 200px; /* Hauteur fixe pour l'image sur mobile */
    }
}

/* --- Project Grid Styles --- */
.project-grid {
    display: grid;
    grid-template-columns: 1fr; /* Une seule colonne */
    gap: 2.5rem; /* Augmenter l'espace entre les cartes */
    margin-top: 2rem;
}

.project-card {
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0,0,0,0.2);
}

.project-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.project-card-content {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1; /* Allows content to fill space */
}

.project-card-content h3 {
    margin-top: 0;
    font-size: 1.15rem; /* Slightly smaller for potentially long titles */
    color: #333;
    margin-bottom: 0.75rem;
}

.project-card-content p {
    font-size: 0.95rem; /* Slightly smaller for consistency */
    color: #666;
    line-height: 1.6;
    flex-grow: 1; /* Pushes button down */
}

.project-card-horizontal {
    flex-direction: row;
    align-items: flex-start; /* Aligner les éléments au début */
    gap: 1.5rem; /* Espace entre l'image et le texte */
}

.project-card-horizontal .project-image-wrapper {
    width: 267px; /* Largeur augmentée d'un tiers */
    height: 267px; /* Hauteur ajustée pour rester carrée */
    flex-shrink: 0;
}

.project-card-horizontal img {
    width: 100%;
    height: 100%;
    object-fit: cover; /* Assure que l'image remplit le carré sans se déformer */
}

.project-card-horizontal .project-card-content {
    padding: 0; /* Le padding est déjà sur la carte */
    padding-top: 0.5rem; /* Petit ajustement pour l'alignement vertical */
}


.service-department {
    margin-bottom: 4rem;
    padding: 2rem;
    background-color: #f9f9f9;
    border-radius: var(--border-radius);
}

/* --- Card Slider (project image carousel) --- */
.card-slider {
    position: relative;
    overflow: hidden;
}

.card-slides {
    display: flex;
    transition: transform 0.5s ease-in-out;
}

.card-slide {
    min-width: 100%;
    height: 200px;
    object-fit: cover;
}

.card-slider-nav {
    position: absolute;
    top: 50%;
    width: 100%;
    display: flex;
    justify-content: space-between;
    transform: translateY(-50%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.card-slider:hover .card-slider-nav {
    opacity: 1;
}

.card-slider-nav button {
    background-color: rgba(0, 0, 0, 0.5);
    color: white;
    border: none;
    padding: 0.5rem;
    cursor: pointer;
}