/* ===== BASE ===== */
body {
    margin: 0;
    padding: 0;
    font-family: 'Montserrat', sans-serif;
    background: #f0f2f5; /* fond doux gris-bleu */
    color: #333;
}
a {
    text-decoration: none;
    color: #0055b3;
    transition: 0.3s;
}
a:hover { color: #003d80; }

/* ===== HEADER ===== */
header {
    background: #ffffff;
    box-shadow: 0 3px 6px rgba(0,0,0,0.1);
    padding: 15px 30px;
    position: sticky;
    top: 0;
    z-index: 1000;
}
.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}
.logo { height: 60px; margin-right: 15px; }
header nav { margin-top: 10px; display: flex; gap: 20px; flex-wrap: wrap; }

/* ===== BOUTONS ===== */
.btn {
    background: #0055b3;
    color: #fff;
    padding: 10px 22px;
    border-radius: 25px;
    font-weight: 700;
    font-size: 1em;
    transition: 0.3s;
}
.btn:hover { background: #003d80; }

/* ===== HERO ===== */
.hero-landing {
    background: url('photo01.jpg') center/cover no-repeat;
    height: 450px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    color: #fff;
}
.hero-landing::after {
    content: "";
    position: absolute;
    top:0; left:0;
    width:100%; height:100%;
    background: rgba(240,242,245,0.4); /* overlay doux */
}
.hero-text {
    position: relative;
    z-index: 1;
    max-width: 700px;
    padding: 20px;
    background: rgba(255,255,255,0.15);
    border-radius: 12px;
    backdrop-filter: blur(3px);
}
.hero-text h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 10px;
    line-height: 1.2;
}
.hero-text p {
    font-size: 1.1rem;
    margin-bottom: 20px;
}

/* ===== SERVICES ===== */
.services {
    padding: 50px 20px;
    text-align: center;
    background: #ffffff;
    border-radius: 12px;
    margin: 20px auto;
    max-width: 1200px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}
.services h3 { font-size: 1.8rem; margin-bottom: 20px; }
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px,1fr));
    gap: 25px;
}
.service-item img {
    width: 100%;
    border-radius: 8px;
    object-fit: cover;
    transition: transform 0.3s;
}
.service-item img:hover { transform: scale(1.05); }
.service-item h4 { margin-top: 10px; font-size: 1.1rem; font-weight: 600; }

/* ===== WHY US ===== */
.why-us {
    background: #f7f9fc;
    padding: 40px 20px;
    text-align: center;
    font-size: 1.1rem;
    max-width: 1000px;
    margin: 20px auto;
    border-radius: 12px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.05);
}

/* ===== MINI-GALLERY ===== */
.mini-gallery {
    padding: 40px 20px;
    max-width: 1200px;
    margin: auto;
}
.mini-gallery h3 { font-size: 1.6rem; margin-bottom: 15px; }
.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px,1fr));
    gap: 15px;
}
.gallery-item img {
    width: 100%;
    border-radius: 8px;
    object-fit: cover;
    transition: transform 0.4s;
}
.gallery-item:hover img { transform: scale(1.05); }

/* ===== FOOTER ===== */
footer {
    background: #0055b3;
    color: #fff;
    text-align: center;
    padding: 25px 20px;
    font-size: 0.9rem;
}

/* ===== RESPONSIVE ===== */
@media(max-width: 768px) {
    .hero-text h2 { font-size: 1.8rem; }
    .hero-text p { font-size: 1rem; }
    .services h3 { font-size: 1.5rem; }
}
@media(max-width: 480px) {
    .hero-landing { height: 300px; }
    .gallery-item img { height: 140px; }
}