header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-x-small);
    border-radius: var(--space-x-small);
    position: sticky;
    top: var(--space-large);
    z-index: 1000;
    /* ✅ Ajoute ces deux lignes */
    isolation: auto;
    overflow: visible;
}

/* ✅ Ajoute ce bloc */
header::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--space-x-small);
    background: linear-gradient(
        to bottom,
        rgba(255, 255, 255, 0.05) 0%,
        rgba(255, 255, 255, 0.0) 100%
        );
        backdrop-filter: blur(35px);
        -webkit-backdrop-filter: blur(12px);
        border: 1px solid var(--CouleurBordureTransparent);
    z-index: -1;
}

.navbar .logo {
    display: none;
}

.logo {
    width: 50px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.logo img {
    width: 100%;
    height: auto;
    border-radius: 100%;
}
.navbar{
    display: flex;
    justify-content: center;
    align-items: center;
}
.menu {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-medium);
}

.menu li {
    list-style: none;
    margin-left: var(--space-medium);
}

.menu li a {
    color: var(--TextSombre);
    text-decoration: none;
    font-weight: 500;
    font-size: var(--font-size-medium);
    transition: color 0.3s ease;
}

.menu li a:hover {
    color: var(--CouleurBouton);
    text-decoration: underline;
}

.menu li.active a {
    color: var(--CouleurBouton);
    text-decoration: underline;
}

.theme {
    cursor: pointer;
}

.theme .icon path {
    fill: var(--TextClair);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

/* Responsive Styles */
@media (max-width: 1000px) {

    header .logo{
        display: none;
    }

    .navbar {
        flex-direction: column;
        gap: var(--space-x-small);
        position: absolute;
        top: 100%;
        width: 100%;
        padding: var(--space-x-small) 0;
        margin-top: var(--space-x-small);
        border-radius: var(--space-x-small);

        background: linear-gradient(
        to bottom,
        rgba(255, 255, 255, 0.05) 0%,
        rgba(255, 255, 255, 0.0) 100%
        );
        backdrop-filter: blur(35px);
        -webkit-backdrop-filter: blur(12px);
        border: 1px solid var(--CouleurBordureTransparent);

        transition: transform 0.3s cubic-bezier(0.23, 1, 0.32, 1); /* ✅ ici, pas sur .active */
        transform: translateX(-200%); /* état de base : caché à gauche */
    }

    .navbar.active{
        left: 0;
        transform: translateX(0);
    }

    .navbar .logo {
        display: block;
        margin-bottom: var(--space-large);
    }
    .menu{
        flex-direction: column;
        width: 100%;
    }

    .menu li {
        margin: 0;
        width: 90%;
    }

    .menu li a {
        margin-left: var(--space-x-small) ;
    }

    .menu li.active a {
        text-decoration: none;
    }

    .menu li.active {
        padding: var(--space-x-small) 0 var(--space-x-small) 0;
        border-radius: var(--space-x-small);
        border: solid 1px var(--CouleurBouton);
    }

    .hamburger{
        display: flex;
        flex-direction: column;
    }

    .hamburger .line {
        width: 25px;
        height: 3px;
        background-color: var(--TextSombre);
        margin: 4px 0;
        border-radius: 50px;
    }

    .hamburger .line{
        transition: transform 0.5s;
    }

    .cross .line:nth-child(1) {
    transform: translateY(11px) rotate(45deg);
    }
    .cross .line:nth-child(2) {
        opacity: 0;
    }
    .cross .line:nth-child(3) {
        transform: translateY(-11px) rotate(-45deg);
    }
}