/* ==========================================================================
   Boxti — Header fixo
   Logo (esquerda) · menu (centro) · CTA (direita). Depende de tokens/base.
   ========================================================================== */

:root {
    --header-height: 88px;
}

.site-header {
    position: fixed;
    inset: 0 0 auto 0;
    z-index: var(--z-header);
    height: var(--header-height);
    display: flex;
    align-items: center;
    background-color: rgba(10, 21, 32, 0.72);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--color-divider);
}

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-6);
    width: 100%;
}

/* Logo --------------------------------------------------------------------- */
.site-header__logo {
    display: inline-flex;
    align-items: center;
    flex-shrink: 0;
}

.site-header__logo img {
    height: 56px;
    width: auto;
}

/* Navegação central -------------------------------------------------------- */
.main-nav {
    display: flex;
    align-items: center;
    gap: clamp(1.25rem, 0.5rem + 2vw, 2.75rem);
}

.main-nav__link {
    font-size: var(--fs-small);
    font-weight: var(--fw-medium);
    letter-spacing: var(--ls-caps);
    text-transform: uppercase;
    color: var(--color-text-secondary);
    white-space: nowrap;
    transition: color var(--transition-fast);
}

.main-nav__link:hover {
    color: var(--color-lime);
}

/* CTA "Falar com especialista" -------------------------------------------- */
.site-header__cta {
    flex-shrink: 0;
}

.btn--specialist {
    border: 1px solid var(--color-lime);
    border-radius: var(--radius-md);
    padding: var(--space-3) var(--space-5);
    font-size: var(--fs-small);
    font-weight: var(--fw-semibold);
    letter-spacing: var(--ls-caps);
    text-transform: uppercase;
    color: var(--color-white);
    box-shadow: 0 0 0 0 rgba(139, 197, 63, 0);
    transition: box-shadow var(--transition-base),
                background-color var(--transition-base);
}

.btn--specialist:hover {
    background-color: rgba(139, 197, 63, 0.08);
    box-shadow: var(--shadow-lime);
}

.btn--specialist .btn__arrow {
    transition: transform var(--transition-base);
}

.btn--specialist:hover .btn__arrow {
    transform: translateX(4px);
}

/* Botão de menu mobile (oculto no desktop) -------------------------------- */
.nav-toggle {
    display: none;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: 1.5rem;
    z-index: 1;
}

/* CTA que aparece dentro do menu mobile (oculto no desktop) */
.main-nav__cta {
    display: none;
}

/* Responsivo --------------------------------------------------------------- */
@media (max-width: 992px) {
    .nav-toggle {
        display: inline-flex;
    }

    /* CTA do header desce para dentro do menu mobile */
    .site-header__cta {
        display: none;
    }

    /* A nav vira um painel dropdown abaixo do header */
    .main-nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: var(--space-2) var(--container-padding) var(--space-6);
        background-color: rgba(10, 21, 32, 0.98);
        backdrop-filter: blur(14px);
        -webkit-backdrop-filter: blur(14px);
        border-bottom: 1px solid var(--color-divider);
        box-shadow: var(--shadow-lg);
        /* escondido por padrão; abre com .is-open */
        opacity: 0;
        visibility: hidden;
        transform: translateY(-10px);
        transition: opacity var(--transition-base),
                    transform var(--transition-base),
                    visibility var(--transition-base);
    }

    .site-header.is-open .main-nav {
        opacity: 1;
        visibility: visible;
        transform: none;
    }

    .main-nav__link {
        font-size: var(--fs-body);
        padding: var(--space-4) 0;
        border-bottom: 1px solid var(--color-divider);
    }

    .main-nav__cta {
        display: inline-flex;
        align-self: flex-start;
        margin-top: var(--space-5);
    }
}