/* style-fr.css: FRENCH INTERFACE FINAL CONSOLIDATED VERSION */

/* 1. Global Reset & Box Sizing (Crucial for Responsiveness) */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

html, body {
    height: 100%;
    overflow-x: hidden;
}

/* 2. Base Typography & Colors */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #003366;
    background-color: #FFFFFF;
}

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

/* 3. Header & Navigation */
header {
    background-color: #FFFFFF;
    box-shadow: 0 2px 20px rgba(0, 51, 102, 0.12);
    position: sticky;
    top: 0;
    z-index: 100;
}

nav { 
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
    padding: 1.2rem 0; 
}
.logo { 
    font-size: 1.6rem; 
    font-weight: 700; 
    color: #003366; 
    letter-spacing: -0.4px; 
}
.nav-links { 
    display: flex; 
    list-style: none; 
    gap: 2.5rem; 
}
.nav-links a { 
    text-decoration: none; 
    color: #003366; 
    font-weight: 500; 
    transition: color 0.3s ease; 
    font-size: 0.95rem; 
}
.nav-links a:hover { 
    color: #990000; 
}

/* 4. Hero Section & CTA Buttons */
.hero {
    background: linear-gradient(135deg, #003366 0%, #004080 100%);
    color: #FFFFFF;
    padding: 6.5rem 0;
    text-align: center;
}
.hero h1 { 
    font-size: 3.3rem; 
    font-weight: 700; 
    margin-bottom: 1.8rem; 
    line-height: 1.15; 
    letter-spacing: -0.4px; 
}
.hero .subtitle { 
    font-size: 1.35rem; 
    margin-bottom: 3rem; 
    opacity: 0.95; 
    font-weight: 500; 
    letter-spacing: 0.2px; 
}

/* CTA Buttons Styling */
.hero .cta-button {
    display: inline-block;
    padding: 1.3rem 3.2rem;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 0.7px;
    margin: 0 0.75rem;
}

/* Secondary CTA (Voir Nos Réalisations) */
.secondary-cta {
    background-color: transparent;
    color: #FFFFFF;
    border: 2px solid #FFFFFF;
    box-shadow: none;
    padding: 1.25rem 3rem;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.secondary-cta:hover {
    background-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
    text-decoration: none;
}

/* 5. Section Titles & Structure */
section { 
    padding: 5.5rem 0; 
}
.section-title { 
    font-size: 2.9rem; 
    font-weight: 700; 
    text-align: center; 
    margin-bottom: 4rem; 
    color: #003366; 
    line-height: 1.25; 
    letter-spacing: -0.4px; 
}

/* Processus Section */
.processus { 
    background-color: #F7F7F7; 
}
.processus-grid { 
    display: grid; 
    grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); 
    gap: 3rem; 
    margin-top: 2.5rem; 
}
.processus-card { 
    background: #FFFFFF; 
    padding: 3rem 2.5rem; 
    border-radius: 15px; 
    box-shadow: 0 10px 35px rgba(0, 51, 102, 0.12); 
    text-align: center; 
    transition: all 0.3s ease; 
    border-top: 5px solid #990000; 
}
.processus-card:hover { 
    transform: translateY(-10px); 
    box-shadow: 0 20px 50px rgba(0, 51, 102, 0.18); 
}
.processus-icon { 
    font-size: 4rem; 
    margin-bottom: 2rem; 
    display: block; 
    color: #990000; 
}
.processus-card h3 { 
    color: #003366; 
    margin-bottom: 1rem; 
}

/* 6. Domaines & Portfolio Sections */
.domaines { 
    background-color: #FFFFFF; 
}
.domaines-grid { 
    display: grid; 
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); 
    gap: 2.5rem; 
    margin-top: 2.5rem; 
}
.domaine-item { 
    background: #F7F7F7; 
    padding: 3rem 2.5rem; 
    border-radius: 12px; 
    border-left: 6px solid #990000; 
    box-shadow: 0 8px 25px rgba(0, 51, 102, 0.1); 
    transition: all 0.3s ease; 
    text-align: center; 
}
.domaine-item:hover { 
    transform: translateY(-8px); 
    border-left-width: 10px; 
    box-shadow: 0 15px 40px rgba(0, 51, 102, 0.15); 
}
.domaine-item h3 { 
    font-size: 1.4rem; 
    font-weight: 600; 
    color: #003366; 
    margin-bottom: 0.8rem; 
}
.domaine-item .specialty { 
    color: #990000; 
    font-size: 0.9rem; 
    font-weight: 500; 
    text-transform: uppercase; 
    letter-spacing: 0.5px; 
}
.domaine-badge {
    background-color: #003366;
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
    display: inline-block;
    margin-top: 1rem;
}

.portfolio { 
    background-color: #F7F7F7; 
}
.portfolio-grid { 
    display: grid; 
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr)); 
    gap: 3rem; 
    margin-top: 2.5rem; 
}
.portfolio-card { 
    background: #FFFFFF; 
    border-radius: 15px; 
    box-shadow: 0 10px 35px rgba(0, 51, 102, 0.12); 
    transition: all 0.3s ease; 
}
.portfolio-card:hover { 
    transform: translateY(-10px); 
    box-shadow: 0 20px 50px rgba(0, 51, 102, 0.18); 
}
.portfolio-card-content { 
    padding: 3rem 2.5rem; 
}
.portfolio-card h3 { 
    font-size: 1.5rem; 
    font-weight: 600; 
    color: #003366; 
    margin-bottom: 2rem; 
    line-height: 1.4; 
}
.portfolio-card a { 
    color: #990000; 
    text-decoration: none; 
    font-weight: 600; 
    font-size: 1rem; 
    text-transform: uppercase; 
    letter-spacing: 0.5px; 
    display: inline-flex; 
    align-items: center; 
    gap: 0.5rem; 
}
.portfolio-card a:hover { 
    text-decoration: underline; 
}
.portfolio-badge { 
    background: linear-gradient(135deg, #003366, #004080); 
    color: #FFFFFF; 
    padding: 0.4rem 1rem; 
    border-radius: 25px; 
    font-size: 0.8rem; 
    font-weight: 500; 
    display: inline-block; 
    margin-top: 1.5rem; 
    text-transform: uppercase; 
    letter-spacing: 0.5px; 
}

/* 7. Footer */
footer {
    background-color: #003366;
    color: #FFFFFF;
    padding: 4rem 0 3rem;
    text-align: center;
}

.copyright { 
    opacity: 0.85; 
    font-size: 0.9rem; 
    letter-spacing: 0.3px; 
}

/* 8. Mobile Responsiveness */
@media (max-width: 768px) {
    .nav-links { 
        display: none; 
    }
    .hero h1 { 
        font-size: 2.4rem; 
    }
    .hero .cta-button {
        display: block; 
        margin: 0.75rem auto; 
        width: 80%;
    }
    .processus-grid, .domaines-grid { 
        grid-template-columns: 1fr; 
        gap: 2.5rem; 
    }
    .portfolio-grid { 
        grid-template-columns: 1fr; 
    }
}

@media (max-width: 480px) {
    .hero h1 { 
        font-size: 2rem; 
    }
    .processus-card, .domaine-item { 
        padding: 2.5rem 2rem; 
    }
    .cta-button { 
        padding: 1.1rem 2.5rem; 
        font-size: 1rem; 
    }
    .portfolio-card-content { 
        padding: 2.5rem 2rem; 
    }
}