body {
    background-color: #e3f2fd;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.contact-container {
    max-width: 1000px;
    margin: 60px auto;
    background: #ffffff;
    padding: 40px 30px;
    border-radius: 16px;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.06);
    border-left: 8px solid #2E8B57;
}

.contact-title {
    color: #2E8B57;
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 35px;
}

.form-label {
    font-weight: 600;
    color: #2E8B57;
}

.btn-submit {
    background-color: #20c997;
    color: white;
    padding: 12px 20px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    cursor: pointer;
    font-weight: 600;
    transition: background-color 0.3s ease;
}

.btn-submit:hover {
    background-color: #17b198;
}

.contact-info h5 {
    color: #1d5c43;
    font-weight: 600;
    margin-top: 20px;
}

.map iframe {
    width: 100%;
    height: 300px;
    border-radius: 12px;
    border: 1px solid #ccc;
    margin-top: 10px;
}

/* Responsive: Tablet (≤768px) */
@media (max-width: 768px) {
    .contact-container {
        padding: 30px 20px;
        margin: 40px 20px;
    }

    .contact-title {
        font-size: 1.7rem;
    }

    .btn-submit {
        width: 100%;
        font-size: 15px;
        padding: 12px;
    }

    .map iframe {
        height: 250px;
    }
}

/* Responsive: Mobile (≤480px) */
@media (max-width: 480px) {
    .contact-container {
        padding: 25px 15px;
        margin: 30px 10px;
    }

    .contact-title {
        font-size: 1.5rem;
    }

    .btn-submit {
        width: 100%;
        font-size: 14px;
        padding: 10px;
    }

    .form-label {
        font-size: 0.95rem;
    }

    .contact-info h5 {
        font-size: 1rem;
        text-align: center;
    }

    .map iframe {
        height: 200px;
    }
}