/* ===== HEADER FIXO - PLANO PNEUMATIC ===== */
.site-header {
    position: relative;
    width: 100%;
    z-index: 1000;
}

/* Barra superior fixa */
.header-top {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: var(--branco);
    border-bottom: 1px solid var(--cinza-claro);
    z-index: 1001;
    height: 40px;
}

/* Menu principal fixo abaixo da barra */
.header-sticky {
    position: fixed;
    top: 40px;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.15);
    z-index: 999;
    padding: 10px 0;
}

/* Espaço reservado para o header fixo (altura total) */
body {
    padding-top: 140px; /* 40px (barra) + altura do menu (aprox. 100px) */
    margin: 0;
}

/* Banner começa abaixo do menu */
.slider-area {
    margin-top: 0;
    position: relative;
    z-index: 1;
}

/* Estilos do menu desktop */
.main-menu ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 30px;
}

.main-menu ul li a {
    color: var(--azul-escuro);
    font-weight: 500;
    text-decoration: none;
    padding: 10px 0;
    transition: color 0.3s;
    font-size: 16px;
}

.main-menu ul li a:hover {
    color: var(--azul-medio);
}

/* Logo */
.logo-img {
    max-height: 50px;
    transition: none; /* sem animação */
}

/* ===== MENU HAMBÚRGUER ===== */
.mobile-menu-container {
    position: relative;
}

.menu-hamburguer {
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    width: 40px;
    height: 40px;
    cursor: pointer;
    z-index: 1000;
}

.menu-hamburguer .bar {
    width: 100%;
    height: 4px;
    background: var(--azul-escuro);
    border-radius: 2px;
    transition: 0.3s;
}

.mobile-menu {
    display: none;
    position: absolute;
    top: 50px;
    right: 0;
    width: 250px;
    background: var(--branco);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    border-radius: 10px;
    padding: 20px;
    z-index: 999;
}

.mobile-menu ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.mobile-menu ul li {
    margin-bottom: 15px;
}

.mobile-menu ul li a {
    color: var(--azul-escuro);
    text-decoration: none;
    font-size: 18px;
    font-weight: 500;
    display: block;
    padding: 10px;
    border-radius: 5px;
}

.mobile-menu ul li a:hover {
    background: var(--cinza-claro);
}

.mobile-menu.show {
    display: block;
}

/* Ajustes responsivos para mobile */
@media (max-width: 768px) {
    body {
        padding-top: 120px; /* ajuste fino para mobile */
    }
    
    .logo-img {
        max-height: 40px;
    }
}