/* ===========================
   RESET
=========================== */

*{
    margin:0;
    padding:0;
    box-sizing:border-box;
    font-family:Arial, Helvetica, sans-serif;
}

body{
    background:#f4f7fb;
    color:#222;
}

/* ===========================
   NAVBAR
=========================== */

.header{
    width:100%;
    background:#0b1f3a;
    position:sticky;
    top:0;
    z-index:1000;
    box-shadow:0 4px 12px rgba(0,0,0,.15);
}

.navbar{
    width:90%;
    margin:auto;
    display:flex;
    justify-content:space-between;
    align-items:center;
    padding:15px 0;
}

.logo-container{
    display:flex;
    align-items:center;
    gap:10px;
}

.logo{
    width:55px;
    height:55px;
    border-radius:50%;
}

.logo-container h1{
    color:#fff;
    font-size:28px;
}

.menu{
    display:flex;
    list-style:none;
}

.menu li{
    margin-left:25px;
}

.menu li a{
    text-decoration:none;
    color:#fff;
    font-weight:bold;
    transition:.3s;
}

.menu li a:hover,
.menu li a.active{
    color:#ffc107;
}

/* ===========================
   BANNIERE
=========================== */

.galerie-banner{
    width:100%;
    height:320px;
    background:linear-gradient(rgba(11,31,58,.75),
               rgba(11,31,58,.75)),
               url("images/image1.jpg");
    background-size:cover;
    background-position:center;
    display:flex;
    justify-content:center;
    align-items:center;
    text-align:center;
}

.banner-content{
    color:#fff;
}

.banner-content h2{
    font-size:42px;
    margin-bottom:15px;
}

.banner-content p{
    font-size:20px;
}

/* ===========================
   TITRE
=========================== */

.section-title{
    text-align:center;
    margin:60px 0 40px;
}

.section-title h2{
    color:#0b1f3a;
    font-size:36px;
    margin-bottom:10px;
}

.section-title p{
    color:#666;
    font-size:18px;
}

/* ===========================
   GALERIE
=========================== */

.galerie-section{
    width:90%;
    margin:auto;
    padding-bottom:70px;
}

.galerie-container{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
    gap:30px;
}

.galerie-card{
    background:#fff;
    border-radius:15px;
    overflow:hidden;
    box-shadow:0 10px 25px rgba(0,0,0,.10);
    transition:.4s;
}

.galerie-card:hover{
    transform:translateY(-8px);
    box-shadow:0 15px 35px rgba(0,0,0,.20);
}

.image-container{
    overflow:hidden;
}

.galerie-image{
    width:100%;
    height:250px;
    object-fit:cover;
    transition:.5s;
}

.galerie-card:hover .galerie-image{
    transform:scale(1.10);
}

.galerie-content{
    padding:25px;
    text-align:center;
}

.galerie-content h3{
    color:#0b1f3a;
    margin-bottom:12px;
    font-size:24px;
}

.galerie-content p{
    color:#666;
    line-height:1.7;
    font-size:16px;
}

/* ===========================
   FOOTER
=========================== */

.footer{
    background:#0b1f3a;
    color:#fff;
    margin-top:50px;
}

.footer-container{
    width:90%;
    margin:auto;
    display:flex;
    justify-content:space-between;
    flex-wrap:wrap;
    gap:30px;
    padding:40px 0;
}

.footer-info h3{
    margin-bottom:15px;
    color:#ffc107;
}

.footer-contact p{
    margin-bottom:10px;
}

.footer-bottom{
    border-top:1px solid rgba(255,255,255,.15);
    text-align:center;
    padding:18px;
}

/* ===========================
   RESPONSIVE
=========================== */

@media(max-width:900px){

    .navbar{
        flex-direction:column;
    }

    .menu{
        flex-wrap:wrap;
        justify-content:center;
        margin-top:20px;
    }

    .menu li{
        margin:10px;
    }

    .banner-content h2{
        font-size:32px;
    }

    .banner-content p{
        font-size:17px;
    }

}

@media(max-width:600px){

    .galerie-banner{
        height:250px;
    }

    .banner-content h2{
        font-size:26px;
    }

    .section-title h2{
        font-size:28px;
    }

    .galerie-image{
        height:220px;
    }

}