body { 
    font-family: Tahoma, sans-serif; 
    margin: 0; 
    padding: 20px; 
    background-color: #f4f4f4; 
    color: #333; 
}
.container { 
    max-width: 500px; 
    margin: auto; 
    background: white; 
    padding: 20px; 
    border-radius: 10px; 
    box-shadow: 0 2px 10px rgba(0,0,0,0.1); 
}

.logo { 
    text-align: center; 
    font-size: 24px; 
    font-weight: bold; 
    margin-bottom: 10px;
}

.logo-img{
    display: block;
    margin: 50px auto 50px;
    max-width: 100%;
    height: auto;
    filter: drop-shadow(2px 2px 2px #222);
    width: 60%;
}

.intro { 
    font-size: 18px; 
    text-align: center; 
    color: #666; 
    margin-bottom: 20px; 
}

input, select { 
    width: 100%; 
    padding: 10px; 
    margin: 10px 0; 
    border: 1px solid #ddd; 
    border-radius: 5px; 
    box-sizing: border-box; 
}


.preview-box {
    border: 2px dashed #ccc;
    padding: 15px;
    margin: 20px 0;
    background: #fafafa;
    text-align: center;
    font-size: 18px;
    color: #666;
    overflow: hidden;
}

.preview-box svg {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
}

.price-section { 
    background: #eef; 
    padding: 15px; 
    border-radius: 5px; 
    margin: 20px 0; 
}

.btn-order { width: 100%; padding: 15px; background: #28a745; color: white; border: none; border-radius: 5px; font-weight: bold; cursor: pointer; }
        .btn-tutorial { width: 100%; padding: 15px; background: #007bff; color: white; border: none; border-radius: 5px; margin-top: 10px; }
        .checkbox-group { display: flex; align-items: center; margin: 10px 0; cursor: pointer;}
        .checkbox-group input { width: auto; margin-left: 10px; transform: scale(1.2); }