.header {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
    height: 56px;    
}

.header a {
    text-decoration: none;
    color: black;
    font-size: 1rem;
}

.header a:hover {
    color: rgb(35, 104, 164);
    font-size: 1.05rem;
    font-weight: 500;
    transition: .25s;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 25%;
    max-width: 128px;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.header-right a {
    /* font-weight: 500; */
}

/* Botão hambúrguer */
.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    cursor: pointer;
    padding: 0;
}

.menu-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    border-radius: 999px;
    background-color: #000;
    transition: transform 0.2s ease, opacity 0.2s ease;
}

/* Menu mobile */
.mobile-menu {
    display: none;
    flex-direction: column;
    background-color: #ffffff;
    position: absolute;
    top: 56px; /* mesma altura do header */
    left: 0;
    right: 0;
    padding: 0.5rem 2rem 1rem;
    border-bottom: 1px solid #ddd;
    z-index: 1000;
}

.mobile-menu a {
    text-decoration: none;
    color: #000;
    padding: 0.5rem 0;
}

.mobile-menu a:hover {
    color: rgb(35, 104, 164);
    font-weight: 500;
}

/* Estado aberto */
.mobile-menu.open {
    display: flex;
}

.menu-toggle.open span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}

.menu-toggle.open span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.open span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

/* Responsividade */
@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }

    .header-content {
        display: none; /* esconde links no header no mobile */
    }

    .header-right {
        display: none; /* "Acessar Sistema" só no menu mobile */
    }
}

@media (min-width: 769px) {
    .mobile-menu {
        display: none !important;
    }
}