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

*{
    margin:0;
    padding:0;
    box-sizing:border-box;
    font-family:'Segoe UI',sans-serif;
}

:root{
    --vert-armee:#4b5320;
    --vert-olive:#6b8e23;
    --kaki:#8a9a5b;
    --sable:#c2b280;
    --blanc:#f1f1eb;
    --fond:#12140f;
}

body{
    background:#12140f;
    color:var(--blanc);
}

/* =========================
   HEADER
========================= */

header{
    height:100px;
    padding:0 5%;
    display:flex;
    justify-content:space-between;
    align-items:center;
    background:rgba(18,20,15,0.95);
    border-bottom:2px solid var(--vert-olive);
}

.logo img{
    height:70px;
}

nav ul{
    display:flex;
    gap:50px;
    list-style:none;
}

nav a{
    text-decoration:none;
    color:white;
    font-weight:600;
    text-transform:uppercase;
}

nav a.active{
    border-bottom:3px solid var(--sable);
}

.header-icons{
    display:flex;
    gap:20px;
}

.header-icons img{
    width:32px;
}

/* =========================
   SLIDER
========================= */
.slider {
    position: relative;
    height: 500px;
}

.slider-container {
    position: relative;
    height: 100%;
}

.slide {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease;
}

.slide.active {
    opacity: 1;
    z-index: 1;
}

.slide img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.dot {
    width: 14px;
    height: 14px;

    border-radius: 50%;

    background: rgba(255,255,255,0.4);
    border: 2px solid white;

    transition: 0.3s;
}

.dot.active {
    background: var(--sable);
    transform: scale(1.2);
    box-shadow: 0 0 10px var(--sable);
}

/* =========================
   PRESENTATION
========================= */

.presentation{
    padding:80px 8%;
    display:grid;
    grid-template-columns:2fr 1fr;
    gap:40px;
}

.presentation-text{
    background:#1c1f18;
    padding:40px;
}

.presentation-text h1{
    font-size:3rem;
    margin-bottom:20px;
}

.presentation-text h2{
    margin-bottom:20px;
    color:var(--sable);
}

.presentation-text p{
    line-height:1.8;
    margin-bottom:30px;
}

.btn{
    display:inline-block;
    padding:15px 25px;
    background:var(--vert-olive);
    color:white;
    text-decoration:none;
    border-radius:5px;
}

.presentation-video video{
    width:100%;
    height:100%;
    object-fit:cover;
}

/* =========================
   EXPERTISE
========================= */

.expertise{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:40px;
    padding:80px 8%;
}

.expertise-image img{
    width:100%;
    height:450px;
    object-fit:cover;
}

.expertise-content{
    display:flex;
    flex-direction:column;
    justify-content:center;
}

.expertise-content h2{
    margin-bottom:25px;
    font-size:2.5rem;
    color:var(--sable);
}

.expertise-content p{
    margin-bottom:20px;
    line-height:1.8;
}

/* =========================
   CONTACT
========================= */

.contact{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:50px;
    padding:80px 8%;
    background:#1c1f18;
}

.contact h2{
    font-size:4rem;
    text-transform:uppercase;
    margin-bottom:30px;
}

.contact ul{
    list-style:none;
}

.contact li{
    margin-bottom:15px;
    font-size:1.2rem;
}

.contact-image img{
    width:100%;
    height:350px;
    object-fit:cover;
}

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

footer{
    text-align:center;
    padding:30px;
    border-top:1px solid rgba(255,255,255,.1);
}

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

@media(max-width:900px){

    .presentation,
    .expertise,
    .contact{
        grid-template-columns:1fr;
    }

    nav ul{
        gap:20px;
    }

    .presentation-text h1{
        font-size:2rem;
    }

    .contact h2{
        font-size:2.5rem;
    }

    .slider,
    .slider img{
        height:300px;
    }
}