/* ==========================================================================
   institucional_nav.css
   Estilos do menu de navegação principal e hamburger menu
   ========================================================================== */

/* --- Header / Nav Container --- */
.nav-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: var(--cor-vinho-escuro, #1e0d13);
    border-bottom: 1px solid var(--cor-bordeaux, #4a1a2a);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0.75rem 1.5rem;
}

/* --- Logo --- */
.nav-logo img {
    max-height: 50px;
    width: auto;
    display: block;
}

/* --- Menu Links --- */
.nav-menu {
    display: flex;
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 2.8rem;
}

.nav-menu__link {
    color: var(--cor-texto, #f0e6d3);
    text-decoration: none;
    font-family: var(--font-corpo, 'Inter', sans-serif);
    font-size: 0.95rem;
    font-weight: 500;
    padding: 0.5rem 0;
    border-bottom: 2px solid transparent;
    transition: color 0.3s ease, border-color 0.3s ease;
}

.nav-menu__link:hover,
.nav-menu__link--active {
    color: var(--cor-dourado, #d4af37);
    border-bottom-color: var(--cor-dourado, #d4af37);
}

/* --- Botão CTA (Área do Obreiro) --- */
.nav-menu__link--cta {
    background-color: var(--cor-dourado, #d4af37);
    color: var(--cor-vinho-escuro, #1e0d13);
    padding: 0.5rem 1.25rem;
    border-radius: 4px;
    border-bottom: none;
    font-weight: 600;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

.nav-menu__link--cta:hover {
    background-color: var(--cor-dourado-claro, #e8c84a);
    color: var(--cor-vinho-escuro, #1e0d13);
    border-bottom: none;
    transform: translateY(-1px);
}

/* --- Hamburger Toggle --- */
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 28px;
    height: 20px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}

.nav-toggle__bar {
    display: block;
    width: 100%;
    height: 3px;
    background-color: var(--cor-texto, #f0e6d3);
    border-radius: 2px;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

/* Hamburger active state */
.nav-toggle--active .nav-toggle__bar:nth-child(1) {
    transform: translateY(8.5px) rotate(45deg);
}

.nav-toggle--active .nav-toggle__bar:nth-child(2) {
    opacity: 0;
}

.nav-toggle--active .nav-toggle__bar:nth-child(3) {
    transform: translateY(-8.5px) rotate(-45deg);
}

/* --- Mobile Menu (< 768px) --- */
@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background-color: var(--cor-vinho-escuro, #1e0d13);
        border-top: 1px solid var(--cor-bordeaux, #4a1a2a);
        padding: 1rem 1.5rem;
        gap: 0;
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        transition: max-height 0.4s ease, opacity 0.3s ease, padding 0.3s ease;
    }

    .nav-menu--open {
        max-height: 400px;
        opacity: 1;
        padding: 1rem 1.5rem;
    }

    .nav-menu__item {
        width: 100%;
        text-align: center;
        padding: 0.75rem 0;
        border-bottom: 1px solid rgba(74, 26, 42, 0.5);
    }

    .nav-menu__item:last-child {
        border-bottom: none;
        padding-top: 1rem;
    }

    .nav-menu__link {
        font-size: 1.05rem;
    }

    .nav-menu__link--cta {
        display: inline-block;
    }
}