/* Filigrane du logo en arrière-plan (Transparence 20%) */
.logo-watermark-bg {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60vw;             /* Taille du logo en filigrane (ajustable) */
    height: 60vw;
    max-width: 850px;
    max-height: 850px;
    background-image: url('logo-bg.jpg'); /* Chemin de votre logo */
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
    opacity: 0.05;            /* Transparence à 20% */
    filter: invert(1);       /* Inverse les couleurs pour avoir le symbole en sombre sur fond clair */
    pointer-events: none;    /* Permet de cliquer à travers sans bloquer la navigation */
    z-index: 0;
}
/* --- Charte Graphique IMCOL : Noir & Blanc avec touche Kaki léger --- */
:root {
    --bg-main: #F8F6F0;          /* Fond blanc pur / très légèrement gris pour le confort visuel */
    --c-black: #111111;          /* Noir profond institutionnel */
    --c-dark-gray: #1E1E1E;      /* Anthracite pour les cartes sombres */
    --c-kaki-light: #6B7C52;     /* Kaki léger et élégant (touche d'accent) */
    --c-kaki-soft: #EEF2E8;      /* Fond kaki très doux / pastel pour les puces et badges */
    --c-white: #FFFFFF;
    --c-gray-text: #555555;      /* Gris moyen pour la lisibilité des textes */
    --c-border: #E5E5E5;        /* Bordures fines et sobres */
    
    --font-body: 'Plus Jakarta Sans', sans-serif;
    --font-logo: 'Allerta Stencil', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-main);
    color: var(--c-black);
    line-height: 1.6;
    position: relative;
}

.container {
    width: 90%;
    max-width: 1140px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

/* --- Header & Navigation --- */
.header {
    position: sticky;
    top: 0;
    background-color: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--c-border);
    padding: 0.8rem 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
}

.logo-img {
    height: 42px;
    width: auto;
    display: block;
}

.logo-text {
    font-family: var(--font-logo);
    font-size: 1.6rem;
    font-weight: 400;
    color: var(--c-black);
    letter-spacing: 1px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 1.2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--c-black);
    font-weight: 600;
    font-size: 0.9rem;
    transition: color 0.3s;
}

.nav-link:hover {
    color: var(--c-kaki-light);
}

/* --- Boutons Pillule --- */
.btn-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.7rem 1.4rem;
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.92rem;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: transform 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
}

.btn-pill:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0,0,0,0.08);
}

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

.btn-pill-primary:hover {
    background-color: var(--c-kaki-light);
}

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

.btn-pill-accent {
    background-color: var(--c-kaki-light);
    color: var(--c-white);
}

.btn-pill-accent:hover {
    background-color: var(--c-black);
}

.arrow-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    background-color: rgba(255, 255, 255, 0.25);
    border-radius: 50%;
    font-size: 1.1rem;
    line-height: 1;
}

/* --- Hero Section --- */
.hero {
    padding: 5.5rem 0 4.5rem;
    text-align: center;
}

.hero-badge {
    display: inline-block;
    background-color: var(--c-kaki-soft);
    color: var(--c-kaki-light);
    font-weight: 800;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 0.4rem 1rem;
    border-radius: 30px;
    margin-bottom: 1.2rem;
    border: 1px solid rgba(107, 124, 82, 0.2);
}

.hero h1 {
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--c-black);
    line-height: 1.25;
    margin-bottom: 1rem;
}

.text-highlight {
    color: var(--c-kaki-light);
    display: inline-block;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--c-gray-text);
    max-width: 650px;
    margin: 0 auto 2rem;
}

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

/* --- Titres de Sections --- */
.section {
    padding: 4.5rem 0;
}

.section-title {
    font-size: 2.2rem;
    font-weight: 800;
    text-align: center;
    color: var(--c-black);
}

.title-underline {
    width: 50px;
    height: 3px;
    background-color: var(--c-kaki-light);
    margin: 0.6rem auto 1rem;
    border-radius: 2px;
}

.section-desc {
    text-align: center;
    color: var(--c-gray-text);
    max-width: 650px;
    margin: 0 auto 3rem;
    font-size: 1.05rem;
}

.graphic-box {
    background-color: var(--c-white);
    border-radius: 20px;
    padding: 2.5rem;
    border: 1px solid var(--c-border);
    max-width: 850px;
    margin: 0 auto 2.5rem;
    line-height: 1.8;
    box-shadow: 0 4px 20px rgba(0,0,0,0.02);
}

/* --- Statistiques --- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.stat-card {
    background-color: var(--c-white);
    border-radius: 20px;
    padding: 1.8rem;
    text-align: center;
    border: 1px solid var(--c-border);
    border-top: 4px solid var(--c-kaki-light);
    box-shadow: 0 4px 12px rgba(0,0,0,0.02);
}

.stat-number {
    display: block;
    font-size: 2.4rem;
    font-weight: 800;
    color: var(--c-black);
}

.stat-label {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--c-gray-text);
}

/* --- Cartes Prestations & Grilles --- */
.prestations-grid, 
.cards-grid-2x2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.8rem;
}

.cards-grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.8rem;
}

/* Modèle de Carte Sobres et Incurvées */
.p-card {
    border-radius: 24px;
    padding: 2.2rem 1.8rem;
    position: relative;
    border: 1px solid var(--c-border);
    box-shadow: 0 4px 15px rgba(0,0,0,0.02);
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.p-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 28px rgba(0,0,0,0.06);
    border-color: var(--c-kaki-light);
}

/* Alternance de couleurs sobre : Noir, Blanc et Touche Kaki */
.p-black {
    background-color: var(--c-black);
    color: var(--c-white);
    border: none;
}

.p-kaki {
    background-color: var(--c-white);
    color: var(--c-black);
    border-top: 4px solid var(--c-kaki-light);
}

.p-olive {
    background-color: var(--c-dark-gray);
    color: var(--c-white);
    border: none;
}

.p-yellow {
    background-color: var(--c-kaki-soft);
    color: var(--c-black);
    border: 1px solid rgba(107, 124, 82, 0.2);
}

/* Badge Numéroté Géant */
.p-badge {
    position: absolute;
    top: -15px;
    left: -10px;
    background-color: var(--c-white);
    color: var(--c-black);
    font-size: 1rem;
    font-weight: 800;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    border: 2px solid var(--c-black);
}

.p-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.2rem;
    padding-top: 0.5rem;
}

.p-header h3 {
    font-size: 1.3rem;
    font-weight: 800;
}

.p-icon-box {
    background-color: rgba(107, 124, 82, 0.12);
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
}

.p-black .p-icon-box,
.p-olive .p-icon-box {
    background-color: rgba(255, 255, 255, 0.15);
}

/* Listes à puces */
.p-list {
    list-style: none;
    padding: 0;
}

.p-list li {
    font-size: 0.92rem;
    margin-bottom: 0.8rem;
    padding-left: 1.4rem;
    position: relative;
    line-height: 1.5;
}

.p-list li::before {
    content: "—";
    font-size: 0.9rem;
    font-weight: bold;
    position: absolute;
    left: 0;
    top: 0;
    color: var(--c-kaki-light);
}

.p-black .p-list li::before,
.p-olive .p-list li::before {
    color: #A3B88C; /* Kaki plus clair sur fond sombre */
}

.card-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    margin-bottom: 0.8rem;
    color: var(--c-kaki-light);
}

.p-black .card-tag,
.p-olive .card-tag {
    color: #A3B88C;
}

.card-text {
    font-size: 0.95rem;
    line-height: 1.6;
}

/* --- Formulaire de Contact --- */
.contact-card-container {
    max-width: 650px;
    margin: 0 auto;
}

.contact-form {
    background-color: var(--c-white);
    border-radius: 24px;
    padding: 2.5rem;
    border: 1px solid var(--c-border);
    box-shadow: 0 6px 20px rgba(0,0,0,0.03);
}

.form-group {
    margin-bottom: 1.3rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.4rem;
    font-weight: 700;
    font-size: 0.92rem;
}

.form-control {
    width: 100%;
    padding: 0.9rem 1.1rem;
    border: 1px solid var(--c-border);
    border-radius: 12px;
    font-family: inherit;
    font-size: 1rem;
    background-color: #F9F9F9;
    transition: border-color 0.3s, background-color 0.3s;
}

.form-control:focus {
    outline: none;
    border-color: var(--c-kaki-light);
    background-color: var(--c-white);
}

.btn-full {
    width: 100%;
    justify-content: center;
    padding: 1rem;
}

/* --- Burger Mobile --- */
.burger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
}

.burger span {
    width: 25px;
    height: 3px;
    background-color: var(--c-black);
    border-radius: 2px;
}

@media (max-width: 768px) {
    .burger { display: flex; }
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--c-white);
        flex-direction: column;
        padding: 1.5rem;
        border-bottom: 1px solid var(--c-border);
    }
    .nav-menu.active { display: flex; }
    .hero h1 { font-size: 2rem; }
    .hero-buttons { flex-direction: column; }
}

/* --- Footer --- */
.footer {
    background-color: var(--c-black);
    color: var(--c-white);
    padding: 2.5rem 0;
    font-size: 0.9rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-links a {
    color: #A3B88C;
    text-decoration: none;
    margin-left: 1rem;
}
/* --- Style de la grille de logos Références / Clients --- */
.logos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 1.8rem;
    align-items: center;
    justify-content: center;
    margin-top: 2rem;
}

.logo-card {
    background-color: var(--c-white);
    border: 1px solid var(--c-border);
    border-radius: 16px;
    padding: 1.5rem 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100px;
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.logo-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.05);
    border-color: var(--c-kaki-light);
}

.logo-card img {
    max-width: 85%;
    max-height: 90px;
    object-fit: contain;
    filter: grayscale(100%); /* Met les logos en noir & blanc pour une harmonie parfaite */
    opacity: 0.75;
    transition: filter 0.3s ease, opacity 0.3s ease;
}

/* Au survol de la souris, le logo retrouve ses couleurs d'origine */
.logo-card:hover img {
    filter: grayscale(0%);
    opacity: 1;
}