/* CSS Styling */
                
        .contact-section {
            padding: 60px 0;
            background-color: #f9f9f9; 
            font-family: Arial, sans-serif;
        }

        .contact-section .container {
            width: 90%;
            max-width: 1200px;
            margin: 0 auto;
        }

        .contact-section h2 {
            text-align: center;
            color: #00802bff; 
            margin-bottom: 40px;
            font-size: 2.5em;
            font-weight: 600;
        }

        .contact-content {
            display: flex;
            flex-wrap: wrap; 
            gap: 30px;
        }

        .company-info, .message-form {
            flex: 1;
            min-width: 300px; 
            background: #fff;
            padding: 30px;
            border-radius: 8px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
        }

        .company-info h3 {
            color: #333;
            border-bottom: 2px solid #ffc107; 
            padding-bottom: 10px;
            margin-bottom: 20px;
        }

        .company-info ul {
            list-style: none;
            padding: 0;
        }

        .company-info li {
            margin-bottom: 15px;
            line-height: 1.6;
            color: #555;
            display: flex;
            align-items: flex-start;
        }

        .company-info li i {
            color: #007bff;
            margin-right: 10px;
            width: 20px;
            text-align: center;
            padding-top: 4px; 
        }

        .social-links {
            margin-top: 25px;
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .hotline-btn, .social-icon {
            padding: 10px 15px;
            text-decoration: none;
            border-radius: 5px;
            font-weight: bold;
            text-align: center;
            transition: background-color 0.3s, transform 0.2s;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
        }
        
        .hotline-btn i, .social-icon i {
            margin-right: 5px;
        }

        .hotline-btn {
            background-color: #dc3545; 
            color: white;
            flex-grow: 1; 
        }

        .social-icon {
            flex: 1;
            min-width: 100px;
            color: white;
        }

        .social-icon.zalo { background-color: #0084ff; }
.social-icon.facebook { background-color: #3b5998; }

        .form-group label {
            display: block;
            margin-bottom: 5px;
            font-weight: bold;
            color: #333;
        }

        .form-group input[type="email"],
        .form-group textarea {
            width: 100%;
            padding: 10px;
            border: 1px solid #ccc;
            border-radius: 4px;
            box-sizing: border-box; 
            font-size: 16px;
        }
        
        .submit-btn {
            display: block;
            width: 100%;
            padding: 12px;
            background-color: #28a745; 
            color: white;
            border: none;
            border-radius: 5px;
            cursor: pointer;
            font-size: 18px;
            font-weight: bold;
            transition: background-color 0.3s, transform 0.2s;
        }

        .form-note {
          font-size: 0.8em;
          color: #888;
          margin-top: 15px;
          text-align: center;
        }

        @media (max-width: 768px) {
            .contact-content { flex-direction: column; }
            .social-links { flex-wrap: nowrap; }
            .social-icon { flex: 1; min-width: unset; }
        }
        
        /* CSS cho Footer để đảm bảo màu sắc và link hoạt động */
        .footer {
            background-color: #212529 !important; /* bg-dark */
            color: #adb5bd !important; /* text-body */
        }
        .footer h5 {
            color: white !important;
        }
        .footer p {
            color: #adb5bd !important;
        }
        .footer .btn-link {
            color: #adb5bd !important;
            text-decoration: none;
            display: block;
            padding: 0 0 8px 0;
            text-align: left;
            transition: color 0.3s;
        }
        .footer .btn-link:hover {
            color: #007bff !important; /* Màu xanh nổi bật */
            padding-left: 10px;
        }
        .footer .btn-social {
            color: #adb5bd;
            border-color: #adb5bd;
        }
        .footer .btn-social:hover {
            color: white;
            background-color: #007bff;
            border-color: #007bff;
        }
        .copyright a {
            color: #adb5bd;
            text-decoration: none;
        }
        .copyright a:hover {
            color: #007bff;
        }
        /* Fix cho Google Map */
        .map-container {
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
        }
        /* --- Responsive cho giao diện mobile (dưới 600px) --- */
@media (max-width: 600px) {

    /* Tiêu đề chính nhỏ lại và căn giữa */
    .contact-section h2 {
        font-size: 1.8em;
        margin-bottom: 25px;
    }

    /* Căn cột theo chiều dọc, bỏ khoảng trống dư */
    .contact-content {
        flex-direction: column;
        gap: 20px;
    }

    /* Card thông tin và form bo tròn nhẹ hơn, gọn lại */
    .company-info,
    .message-form {
        padding: 20px;
        box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    }

    /* Giảm size chữ và icon */
    .company-info h3,
    .message-form h3 {
        font-size: 1.2em;
        text-align: center;
    }

    .company-info li {
        font-size: 14px;
        margin-bottom: 10px;
    }

    .company-info li i {
        font-size: 16px;
        margin-right: 8px;
    }

    /* Nút hotline và social xếp dọc cho dễ bấm */
    .social-links {
        flex-direction: column;
        align-items: stretch;
    }

    .hotline-btn,
    .social-icon {
        flex: none;
        width: 100%;
        font-size: 15px;
        padding: 10px 0;
    }

    /* Form gọn gàng, không quá dài */
    .form-group input[type="email"],
    .form-group textarea {
        font-size: 15px;
        padding: 8px;
    }

    .form-group textarea {
        height: 120px;
    }

    .submit-btn {
        font-size: 16px;
        padding: 10px;
    }

    .form-note {
        font-size: 0.75em;
        margin-top: 10px;
    }
}