:root {
    --header-height: 80px;
    --desktop-header-color: #fff;
    --mobile-header-color: #fff;
    --mobile-nav-color: var(--secondary-color);
}

.header {
    position: fixed;
    top: 0;
    left: 0;

    background-color: var(--desktop-header-color);
    z-index: 100;
    transition: background-color .4s ease;
}

.header.scrolled {
    background-color: rgb(237, 223, 226, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    /* Safari */
}

.header.header-colorful {
    background-color: var(--secondary-color);
}

.header-container {
    max-width: none;
    padding-left: 20px;
    padding-right: 20px;

    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 141px;
}

.brand img {
    width: 100%;
    height: auto;
}

.header-nav {
    display: flex;
    align-items: center;
    justify-content: center;

    /* se posicionar os links à direita da tela, ative a linha abaixo. */
    /* gap: 32px; */
}

.header-menu {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 32px;

    /* para manter os links centralizados, mantenha as 3 linhas abaixo. */
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
}

.burger {
    display: none;
    position: relative;
    width: 30px;
    height: 22px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
}

.burger span {
    display: block;
    position: absolute;
    height: 3px;
    width: 100%;
    background: black;
    border-radius: 9px;
    opacity: 1;
    left: 0;
    transform: rotate(0deg);
    transition: 0.4s ease;
}

.burger span:nth-of-type(1) {
    top: 0px;
    transform-origin: left center;
}

.burger span:nth-of-type(2) {
    top: 50%;
    transform: translateY(-50%);
    transform-origin: left center;
}

.burger span:nth-of-type(3) {
    top: 100%;
    transform: translateY(-100%);
    transform-origin: left center;
}

/* Efeito toggle com classe */
.burger.active span:nth-of-type(1) {
    transform: rotate(45deg);
    top: 0px;
    left: 5px;
}

.burger.active span:nth-of-type(2) {
    width: 0%;
    opacity: 0;
}

.burger.active span:nth-of-type(3) {
    transform: rotate(-45deg);
    top: 21px;
    left: 5px;
}



@media screen and (max-width: 991px) {
    .header {
        position: fixed;
        background-color: var(--mobile-header-color);
    }

    .header.scrolled {
        background-color: var(--secondary-color);
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
    }

    .header-container {
        height: var(--header-height);
    }

    .burger {
        display: block;
    }

    .header-nav {
        position: absolute;
        top: var(--header-height);
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: flex-start;
        padding: 0 20px;
        gap: 24px;

        background-color: var(--mobile-nav-color);

        max-height: 0;
        overflow: hidden;
        transition: all .4s ease;
    }

    .header-nav.is-open {
        padding: 20px;
        max-height: 500px;
        /* Ajuste conforme necessário */
    }

    .header-menu {
        position: static;
        left: auto;
        transform: none;

        flex-direction: column;
        gap: 24px;
        align-items: flex-start;
    }
}

@media screen and (max-width: 767px) {}

@media screen and (max-width: 479px) {}

@media screen and (min-width: 1280px) {
    .header-container {
        padding-left: 50px;
        padding-right: 50px;
    }
}