/* ==========================================================
   FALAE

   Arquivo:
      site-navbar.css

   Domínio:
      Site Institucional

   Componente:
      Navbar

   Responsabilidade:
      Definir a apresentação e a responsividade da navegação
      principal do site institucional.

   Dependências:
      site-variables.css
      site-base.css
      site-typography.css
      site-buttons.css

   Sprint:
      20.1 — Produção Landing Page
========================================================== */


/* ==========================================================
   HEADER
========================================================== */

.site-header {
    position: sticky;
    top: 0;
    z-index: var(--site-z-header);

    width: 100%;

    border-bottom:
        var(--site-border-width)
        solid
        transparent;

    background-color: rgba(255, 255, 255, 0.88);

    -webkit-backdrop-filter: blur(18px);
    backdrop-filter: blur(18px);

    transition:
        background-color var(--site-transition-base),
        border-color var(--site-transition-base),
        box-shadow var(--site-transition-base);
}

.site-header.is-scrolled {
    border-bottom-color: var(--site-color-border-subtle);
    background-color: rgba(255, 255, 255, 0.96);
    box-shadow: var(--site-shadow-xs);
}


/* ==========================================================
   ESTRUTURA
========================================================== */

.site-navbar {
    min-height: var(--site-navbar-height);
}

.site-navbar__content {
    position: relative;

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

    min-height: var(--site-navbar-height);
}


/* ==========================================================
   MARCA
========================================================== */

.site-navbar__brand {
    position: relative;
    z-index: 2;

    display: inline-flex;
    align-items: center;

    flex: 0 0 auto;

    text-decoration: none;
}

.site-navbar__logo{
    height:52px;
    width:auto;
    display:block;
    
}


/* ==========================================================
   MENU DESKTOP
========================================================== */

.site-navbar__menu {
    display: flex;
    align-items: center;
    justify-content: flex-end;

    flex: 1;

    gap: var(--site-space-10);
}

.site-navbar__links {
    display: flex;
    align-items: center;

    gap: var(--site-space-8);

    margin: 0 auto;
    padding: 0;

    list-style: none;
}

.site-navbar__item {
    margin: 0;
}

.site-navbar__link {
    position: relative;

    display: inline-flex;
    align-items: center;

    padding-block: var(--site-space-2);

    color: var(--site-color-text-secondary);

    font-size: var(--site-font-size-sm);
    font-weight: var(--site-font-weight-medium);
    line-height: 1;
    text-decoration: none;

    transition: color var(--site-transition-fast);
}

.site-navbar__link::after {
    position: absolute;
    right: 0;
    bottom: 0;
    left: 0;

    height: 2px;

    border-radius: var(--site-radius-pill);

    background-color: var(--site-color-accent);

    content: "";

    opacity: 0;
    transform: scaleX(0);
    transform-origin: center;

    transition:
        opacity var(--site-transition-fast),
        transform var(--site-transition-fast);
}

.site-navbar__link:hover,
.site-navbar__link:focus-visible {
    color: var(--site-color-primary);
}

.site-navbar__link:hover::after,
.site-navbar__link:focus-visible::after {
    opacity: 1;
    transform: scaleX(1);
}


/* ==========================================================
   AÇÕES
========================================================== */

.site-navbar__actions {
    display: flex;
    align-items: center;

    gap: var(--site-space-4);

    flex: 0 0 auto;
}

.site-navbar__login {
    display: inline-flex;
    align-items: center;
    justify-content: center;

    min-height: 2.75rem;
    padding-inline: var(--site-space-3);

    color: var(--site-color-primary);

    font-size: var(--site-font-size-sm);
    font-weight: var(--site-font-weight-semibold);
    text-decoration: none;

    transition: color var(--site-transition-fast);
}

.site-navbar__login:hover {
    color: var(--site-color-accent-hover);
}

.site-navbar__cta {
    min-height: 2.75rem;

    padding:
        var(--site-space-3)
        var(--site-space-5);

    border-radius: var(--site-radius-md);

    font-size: var(--site-font-size-sm);
}


/* ==========================================================
   BOTÃO MOBILE
========================================================== */

.site-navbar__toggle {
    position: relative;
    z-index: 2;

    display: none;
    align-items: center;
    justify-content: center;
    flex-direction: column;

    width: 2.75rem;
    height: 2.75rem;
    padding: var(--site-space-2);

    border:
        var(--site-border-width)
        solid
        var(--site-color-border);

    border-radius: var(--site-radius-md);

    background-color: var(--site-color-surface);
    color: var(--site-color-primary);

    box-shadow: var(--site-shadow-xs);

    transition:
        border-color var(--site-transition-fast),
        background-color var(--site-transition-fast),
        box-shadow var(--site-transition-fast);
}

.site-navbar__toggle:hover {
    border-color: var(--site-color-border-strong);
    background-color: var(--site-color-background-soft);
}

.site-navbar__toggle-line {
    display: block;

    width: 1.25rem;
    height: 2px;

    border-radius: var(--site-radius-pill);

    background-color: currentColor;

    transition:
        opacity var(--site-transition-base),
        transform var(--site-transition-base);
}

.site-navbar__toggle-line + .site-navbar__toggle-line {
    margin-top: 4px;
}

.site-navbar__toggle[aria-expanded="true"]
.site-navbar__toggle-line:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}

.site-navbar__toggle[aria-expanded="true"]
.site-navbar__toggle-line:nth-child(2) {
    opacity: 0;
}

.site-navbar__toggle[aria-expanded="true"]
.site-navbar__toggle-line:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}


/* ==========================================================
   TABLET E MOBILE
========================================================== */

@media (max-width: 61.9375rem) {

    .site-navbar__toggle {
        display: inline-flex;
    }

    .site-navbar__menu {
        position: absolute;
        top: calc(100% + var(--site-space-2));
        right: 0;
        left: 0;

        display: flex;
        align-items: stretch;
        flex-direction: column;

        gap: var(--site-space-6);

        padding: var(--site-space-6);

        border:
            var(--site-border-width)
            solid
            var(--site-color-border-subtle);

        border-radius: var(--site-radius-xl);

        background-color: rgba(255, 255, 255, 0.98);

        box-shadow: var(--site-shadow-lg);

        opacity: 0;
        visibility: hidden;

        transform: translateY(-0.75rem);

        transition:
            opacity var(--site-transition-base),
            visibility var(--site-transition-base),
            transform var(--site-transition-base);
    }

    .site-navbar__menu.is-open {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }

    .site-navbar__links {
        align-items: stretch;
        flex-direction: column;

        width: 100%;

        gap: 0;
    }

    .site-navbar__item {
        width: 100%;
    }

    .site-navbar__link {
        width: 100%;

        padding-block: var(--site-space-4);

        border-bottom:
            var(--site-border-width)
            solid
            var(--site-color-border-subtle);

        font-size: var(--site-font-size-base);
    }

    .site-navbar__link::after {
        display: none;
    }

    .site-navbar__actions {
        align-items: stretch;
        flex-direction: column;

        width: 100%;

        gap: var(--site-space-3);
    }

    .site-navbar__login,
    .site-navbar__cta {
        width: 100%;
    }

    .site-navbar__login {
        border:
            var(--site-border-width)
            solid
            var(--site-color-border);

        border-radius: var(--site-radius-md);

        background-color: var(--site-color-surface);
    }

}


/* ==========================================================
   MOBILE
========================================================== */

@media (max-width: 47.9375rem) {

    .site-navbar__logo {
        height: 2.125rem;
    }

    .site-navbar__menu {
        padding: var(--site-space-5);
        border-radius: var(--site-radius-lg);
    }

}


/* ==========================================================
   ACESSIBILIDADE
========================================================== */

@media (prefers-reduced-motion: reduce) {

    .site-header,
    .site-navbar__menu,
    .site-navbar__toggle-line,
    .site-navbar__link,
    .site-navbar__link::after {
        transition: none;
    }

}