.img2b64-container {
    background: #fff;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    margin-bottom: 40px;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.img2b64-title {
    font-size: 2rem;
    font-weight: bold;
    color: #212529;
    margin-bottom: 1.5rem;
    text-align: center;
}

.img2b64-btn {
    background-color: #1abc9c;
    color: #fff;
    border: none;
    padding: 10px 25px;
    font-size: 1rem;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

    .img2b64-btn:hover {
        background-color: #16a085;
    }

.form-row {
    margin-bottom: 20px;
    text-align: center;
}

.result-container {
    text-align: center;
    margin-top: 20px;
    word-break: break-all;
}

.img-preview {
    max-width: 100%;
    margin-bottom: 15px;
    border: 1px solid #dee2e6;
    padding: 4px;
    border-radius: 4px;
}

textarea {
    width: 100%;
    min-height: 120px;
    font-family: monospace;
    font-size: 1rem;
    margin-bottom: 10px;
}

.seo-content {
    background-color: #ffffff;
    padding: 30px 25px;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: #343a40;
    margin-bottom: 40px;
}

    .seo-content h2 {
        font-size: 1.75rem;
        font-weight: 600;
        margin-bottom: 1rem;
        color: #212529;
        text-align: center;
    }

    .seo-content p {
        margin-bottom: 1rem;
        line-height: 1.6;
    }