body {
    font-family: Arial, sans-serif;
    background-color:#FFFFFF ;
    margin: 0;
}

.callback-button {
    position: fixed;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    background-color: #ff6600;
    color: white;
    padding: 15px;
    cursor: pointer;
    border-radius: 3px 0 0 3px;
    z-index: 1000;
}

.callback-slider {
    position: fixed;
    right: -400px;
    top: 0;
    height: 100%;
    width: 400px;
    background-color: white;
    box-shadow: -2px 0 10px rgba(0, 0, 0, 0.1);
    transition: right 0.3s ease;
    z-index: 999;
}

.callback-slider.open {
    right: 0;
}

.callback-container {
    padding: 20px;
}

.callback-form {
    position: relative;
}

.callback-form .close-btn {
    position: absolute;
    right: 10px;
    top: 10px;
    font-size: 24px;
    cursor: pointer;
}

.callback-form h2 {
    margin: 0 0 10px;
}

.callback-form p {
    margin: 0 0 20px;
    color: #666;
}

.form-group {
    margin-bottom: 15px;
}

.form-group input,
.form-group textarea {
    width: calc(100% - 22px);
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 3px;
    font-size: 16px;
}

.form-group textarea {
    resize: vertical;
    height: 80px;
}

button {
    background-color: #ff6600;
    color: white;
    padding: 10px;
    border: none;
    border-radius: 3px;
    font-size: 16px;
    cursor: pointer;
}

button:hover {
    background-color: #e65c00;
}