.machine-box {
    background-color: #4c8ef7;
    border-radius: 10px;
    padding: 1rem;
    text-align: center;
    color: white;
    transition: 0.3s;
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    margin-bottom: 1rem;
}

@media (max-width: 576px) {
    .machine-box {
        padding: 0.75rem;
        font-size: 0.9rem;
    }
}

.breadcrumb a {
    color: black;
    font-weight: bold;
    text-decoration: none;
    font-size: 20px;
}

@media (max-width: 576px) {
    .breadcrumb {
        font-size: 16px;
        justify-content: center;
    }

    .breadcrumb a {
        font-size: 16px;
    }
}

.breadcrumb a:hover {
    text-decoration: underline;
    color: darkcyan;
}

.machine-box img {
    height: 200px;
    width: 100%;
    object-fit: contain;
}

@media (max-width: 768px) {
    .machine-box img {
        height: 150px;
    }
}

@media (max-width: 576px) {
    .machine-box img {
        height: 120px;
    }
}

.machine-box:hover {
    background-color: #3366cc;
}

.banner-img {
    height: 400px;
    object-fit: cover;
    width: 100%;
}

.banner-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: white;
    text-transform: uppercase;
    font-weight: bold;
    font-size: 3rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.6); /* thay cho stroke */
}

/* Responsive: mobile nhỏ */
@media (max-width: 768px) {
    .banner-img {
        height: 250px;
    }

    .banner-text {
        font-size: 1.8rem;
    }
}

/* Mobile siêu nhỏ */
@media (max-width: 480px) {
    .banner-img {
        height: 200px;
    }

    .banner-text {
        font-size: 1.4rem;
    }
}