.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.97);
    border-bottom: 1px solid var(--borda);
    backdrop-filter: blur(10px);
}

.header-content {
    min-height: 82px;
    display: flex;
    align-items: center;
    gap: 28px;
}

.logo img {
    width: 200px;
    height: 64px;
    object-fit: contain;
}

.nav {
    display: flex;
    gap: 24px;
    margin-left: auto;
}

.nav a {
    color: var(--azul-marinho);
    text-decoration: none;
    font-weight: 800;
}

.btn-header {
    background: var(--azul-marinho);
    color: var(--branco);
}

.menu-toggle {
    display: none;
    margin-left: auto;
    border: 0;
    background: transparent;
    color: var(--azul-marinho);
    font-size: 1.8rem;
    cursor: pointer;
}