:root {
    --rouge: #B22222;
    --brun: #A0522D;
    --vert: #9ACD32;
    --beige: #FFF8E7;
    --gris: #2C2C2C;
    --white: #ffffff;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
}


header {
    position: fixed;     
    top: 0;
    left: 0;
    width: 100%;         
    z-index: 1000;       
}

body {
    padding-top: 80px;   
}


nav {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 5px;
}

nav ul {
    display: flex;
    justify-content: space-evenly;
    align-items: center;
    gap: 50px;
    list-style: none;
    padding: 15px 40px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(20px) saturate(160%);
    -webkit-backdrop-filter: blur(20px) saturate(160%);
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 0 40px rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
    
}

nav ul li a {
    color: var(--gris);
    text-decoration: none;
    font-size: 1.1em;
    font-weight: 500;
    letter-spacing: 0.5px;
    transition: color 0.3s ease, text-shadow 0.3s ease;
}

nav ul li a:hover {
    color: var(--rouge);
    text-shadow: 0 0 10px rgba(174, 228, 255, 0.8);
}