header {
    position: sticky;
    top: 0;
    z-index: 40;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(6px);
    width: 100%;
    height: 60px;
    border-bottom: 1px solid var(--dark);
    padding: 0 45px;
    box-sizing: border-box;
    transition: all 0.3s ease;
}

header>a {
    display: flex;
    gap: 5px;
    align-items: center;
    box-sizing: border-box;
    height: 100%;
    z-index: 1;
    color: white;
    font-size: 25px;
}

header>a img {
    height: 100%;
    aspect-ratio: 1/1;
    z-index: -10;
}

header nav {
    display: flex;
    gap: 10px;
}

header nav button {
    display: flex;
    align-items: center;
    gap: 5px;
    opacity: 0.3;
    padding: 8px 16px;
    background-color: transparent;
    color: var(--light-primary);
    font-size: 14px;
    border: 1px solid transparent;
    border-radius: 10px;
    fill: var(--light-primary);
    transition: all 0.3s ease;
}

header nav button:hover,
header nav button.active {
    background-color: rgba(0, 255, 0, 0.1);
    border: 1px solid var(--primary);
    opacity: 1;
}

header nav button svg {
    height: 16px;
}

@media (max-width: 800px) {
    header nav button {
        padding: 6px 12px;
    }
}

@media (max-width: 600px) {
    header {
        height: 50px;
    }

    header>a {
        font-size: 20px;
    }

    header nav {
        gap: 5px;
    }

    header nav button {
        padding: 8px;
    }

    header nav span {
        display: none;
    }
}