.hero {
        background: linear-gradient(135deg, #008B8B 0%, #006666 100%);
        color: white;
        padding: 70px 5%;
        display: flex;
        justify-content: space-between;
        min-height: 600px;
        position: relative;
        overflow: hidden;
        background-size: 100% 100%;
    }

    .hero::before {
        background-color: #007777;
        background-image: var(--bg-image, url(/img/dc_img/Doctorcubes.JPG));
        content: "";
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background-size: cover;
        background-position: center;
        opacity: 0.25;
        z-index: 0;
        transition: background-image 0.5s ease-in-out, opacity 0.5s ease-in-out;
    }

    /* Fallback classes for each image */
    .hero-bg-0::before { background-image: url(/img/dc_img/Doctorcubes.JPG); }
    .hero-bg-1::before { background-image: url(/img/dc_img/Doctorcubes2.JPG); }
    .hero-bg-2::before { background-image: url(/img/dc_img/Doctorcubes3.JPG); }
    .hero-bg-3::before { background-image: url(/img/dc_img/Doctorcubes4.JPG); }
    .hero-bg-4::before { background-image: url(/img/dc_img/Doctorcubes5.JPG); }
    .hero-bg-5::before { background-image: url(/img/dc_img/Doctorcubes6.JPG); }
    .hero-bg-6::before { background-image: url(/img/dc_img/Doctorcubes7.JPG); }
    .hero-bg-7::before { background-image: url(/img/dc_img/Doctorcubes8.JPG); }
    .hero-bg-8::before { background-image: url(/img/dc_img/Doctorcubes9.JPG); }
    .hero-bg-9::before { background-image: url(/img/dc_img/Doctorcubes_office1.JPG); }
    .hero-bg-10::before { background-image: url(/img/dc_img/Doctorcubes_office2.JPG); }
    .hero-bg-11::before { background-image: url(/img/dc_img/Doctorcubes_office3.JPG); }

    .hero-content {
        flex: 1;
        padding-top: 50px;
        position: relative;
        z-index: 2;
    }

    .hero-content h1 {
        font-size: 46px;
        margin-bottom: 20px;
        line-height: 1.2;
        text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
        color: #FFFFFF;
    }

    .hero-content h1 span {
        color: #FFD700;
        font-weight: bold;
        position: relative;
        display: inline-block;
    }

    .hero-content h1 span::after {
        content: '';
        position: absolute;
        bottom: 5px;
        left: 0;
        width: 100%;
        height: 4px;
        background-color: #FFD700;
        opacity: 0.4;
    }

    .country-flags {
        display: flex;
        gap: 15px;
        margin: 30px 0;
        align-items: center;
        flex-wrap: wrap;
        animation: fadeIn 1s ease-out 0.5s backwards;
    }

    .country-flags img {
        width: 60px;
        height: 40px;
        object-fit: cover;
        border: 2px solid rgba(255, 255, 255, 0.7);
        border-radius: 4px;
        box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    }

    .country-flags img:hover {
        transform: translateY(-8px) scale(1.05);
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
        transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .hero-text {
        margin: 25px 0;
        max-width: 550px;
        font-size: 17px;
        line-height: 1.8;
        color: rgba(255, 255, 255, 0.9);
        animation: fadeIn 1s ease-out 0.7s backwards;
    }

    .hero-features {
        margin-top: 35px;
        font-size: 15px;
        background: rgba(255, 255, 255, 0.9);
        color: #0288D1;
        padding: 20px;
        border-radius: 10px;
        max-width: 550px;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        animation: fadeIn 1s ease-out 0.9s backwards;
    }

    .hero-features li {
        margin-bottom: 8px;
        list-style-type: none;
        padding-left: 25px;
        position: relative;
        color: #0288D1;
    }

    .hero-features li:before {
        content: '✓';
        color: #4FC3F7;
        position: absolute;
        left: 0;
        top: 0;
        font-weight: bold;
    }

    .registration-form {
        background: white;
        border-radius: 15px;
        padding: 30px;
        width: 380px;
        color: #333;
        box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
        position: relative;
        z-index: 2;
        animation: fadeIn 1s ease-out 0.5s backwards;
    }

    .registration-form:hover {
        transform: translateY(-5px);
        box-shadow: 0 15px 30px rgba(0, 0, 0, 0.25);
        transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .registration-form h2 {
        color: #008B8B;
        font-size: 24px;
        margin-bottom: 12px;
        text-align: center;
    }

    .registration-form p {
        color: #666;
        font-size: 15px;
        margin-bottom: 25px;
        text-align: center;
    }

    .form-input {
        margin-bottom: 20px;
        position: relative;
    }

    .form-input input, .form-input select {
        width: 100%;
        padding: 14px;
        border: 1px solid #ddd;
        border-radius: 8px;
        font-size: 15px;
        background-color: #f9f9f9;
    }

    .form-input input:focus, .form-input select:focus {
        outline: none;
        border-color: #008B8B;
        box-shadow: 0 0 0 3px rgba(0, 139, 139, 0.1);
        background-color: #fff;
        transition: all 0.3s ease;
    }

    .submit-btn {
        background: linear-gradient(to right, #008B8B, #006666);
        color: white;
        border: none;
        padding: 14px 20px;
        border-radius: 8px;
        font-weight: bold;
        font-size: 16px;
        cursor: pointer;
        width: 100%;
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
        position: relative;
        overflow: hidden;
    }

    .submit-btn:hover {
        background: linear-gradient(to right, #006666, #008B8B);
        transform: translateY(-3px);
        box-shadow: 0 8px 15px rgba(0, 0, 0, 0.2);
        transition: all 0.3s ease;
    }

    @keyframes fadeIn {
        from { opacity: 0; }
        to { opacity: 1; }
    }

    /* Responsive Design */
    @media (max-width: 1024px) {
        .hero {
            flex-direction: column;
            align-items: center;
            padding: 50px 5%;
            min-height: auto;
        }

        .hero-content {
            padding-top: 20px;
            text-align: center;
            max-width: 100%;
        }

        .hero-content h1 {
            font-size: 36px;
        }

        .hero-text {
            font-size: 16px;
            max-width: 100%;
        }

        .hero-features {
            max-width: 100%;
            font-size: 14px;
        }

        .registration-form {
            width: 100%;
            max-width: 400px;
            margin-top: 20px;
        }

        .country-flags {
            justify-content: center;
        }
    }

    @media (max-width: 768px) {
        .hero {
            padding: 30px 5%;
        }

        .hero-content h1 {
            font-size: 28px;
        }

        .hero-text {
            font-size: 14px;
        }

        .hero-features {
            padding: 15px;
            font-size: 13px;
        }

        .country-flags img {
            width: 50px;
            height: 33px;
        }

        .registration-form {
            padding: 20px;
        }

        .registration-form h2 {
            font-size: 20px;
        }

        .registration-form p {
            font-size: 14px;
        }

        .form-input input, .form-input select {
            padding: 12px;
            font-size: 14px;
        }

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

    @media (max-width: 480px) {
        .hero {
            padding: 20px 5%;
        }

        .hero-content h1 {
            font-size: 24px;
        }

        .hero-text {
            font-size: 13px;
        }

        .hero-features {
            padding: 10px;
            font-size: 12px;
        }

        .country-flags img {
            width: 40px;
            height: 27px;
        }

        .registration-form {
            padding: 15px;
        }

        .registration-form h2 {
            font-size: 18px;
        }

        .form-input input, .form-input select {
            padding: 10px;
            font-size: 13px;
        }

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