header {
    position: fixed;
    top: 0;
    background-color: transparent;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    padding: 4px 10px;
    align-items: center;
    width: 100%;
    max-width: 1200px;
    box-sizing: border-box;
    left: 0;
    right: 0;
    margin: 0 auto;
}

header.scrolled {
    background-color: var(--header-nav--background-color-scrolled);
    box-shadow: 0 1px 1px rgba(0, 0, 0, 0.3);
}

header.scrolled a {
    color: var(--header-nav--nav-button-color-scrolled);
}

header nav {
    display: flex;
    align-items: center;
}

header nav a {
    color: var(--header-nav--nav-button-color);
    text-decoration: none;
    margin-right: 25px;
    font-weight: bold;
    font-size: 16px;
}

header.scrolled nav a {
    color: var(--header-nav--menu-item-color);
}

header nav a:last-child {
    margin-right: 0;
}

.logo img {
    max-height: 45px;
}

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

.menu-icon span {
    width: 30px;
    height: 3px;
    background-color: var(--header-nav--nav-button-color);
    margin: 4px 0;
    transition: 0.4s;
}

header.scrolled .menu-icon span {
    background-color: var(--header-nav--nav-button-color-scrolled);
}

@media (max-width: 768px) {
    header {
        padding: 3px 5px;
    }
    
    .logo img {
        max-height: 35px;
    }

    .menu-icon {
        display: flex;
    }

    header nav {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 45px;
        left: 0;
        width: 100%;
        background-color: var(--header-nav--background-color-scrolled);
        padding: 20px 0;
    }

    header nav a {
        margin-right: 0;
        margin-bottom: 20px;
        font-size: 25px;
        text-align: center;
        width: 100%;
        color: var(--header-nav--menu-item-color);
    }
    header nav a:last-child {
        margin-bottom: 0;
    }

    header.nav-active nav {
        display: flex; /* Show the nav links when menu is active */
    }

    .menu-icon.active span:nth-child(1) {
        transform: rotate(-45deg) translate(-5px, 6px);
    }

    .menu-icon.active span:nth-child(2) {
        opacity: 0;
    }

    .menu-icon.active span:nth-child(3) {
        transform: rotate(45deg) translate(-5px, -6px);
    }
}