.topbar {
    position: sticky;
    top: 0;
    z-index: 100;
    height: 80px;
    /* 🔒 altezza fissa */
    background: #25587c;
    display: flex;
    align-items: center;
    /* centra verticalmente */
    justify-content: space-between;
    padding: 0 20px;
    /* SOLO orizzontale */
}

.logo .brand {
    color: #fff;
    text-decoration: none;
    font-weight: 900;
}

.menu {
    display: flex;
    gap: 18px;
}

.menu a {
    color: #fff;
    text-decoration: none;
    font-weight: 600;
    opacity: 0.9;
}

.menu a.active,
.menu a:hover {
    opacity: 1;
    text-decoration: underline;
}

.logo img {
    height: 36px;
    width: auto;
    display: block;
}

@media (max-width: 480px) {
    .logo img {
        height: 32px;
    }

    .brand-text {
        display: none;
    }

    #contactBtn {
        display: none;
    }
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.brand-text {
    font-size: 18px;
    font-weight: 700;
    color: #ffffff;
    white-space: nowrap;
}