.upg-page-container {
    display: flex;
    flex-wrap: wrap;
    width: 100%;
    min-height: 100vh;
    padding: 20px;
    box-sizing: border-box;
    background: #f9f9f9;
}
.upg-left-panel {
    flex: 1;
    min-width: 300px;
    max-width: 450px;
    margin-right: 20px;
    background: #fff;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 8px 16px rgba(0,0,0,0.1);
}
.upg-right-panel {
    flex: 2;
    min-width: 300px;
    background: #fff;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 8px 16px rgba(0,0,0,0.1);
}
.upg-right-panel textarea {
    width: 100%;
    height: 80vh;
    resize: none;
    padding: 15px;
    font-size: 16px;
}
.upg-container button{
    margin:5px 2px;
    padding:10px 15px;
    border:none;
    border-radius:8px;
    background: linear-gradient(135deg,#6a11cb 0%,#2575fc 100%);
    color:#fff;
    font-weight:bold;
    cursor:pointer;
    box-shadow:0 4px 6px rgba(0,0,0,0.2);
    transition: all 0.3s ease;
}
.upg-container button:hover{
    transform:translateY(-2px);
    box-shadow:0 6px 8px rgba(0,0,0,0.3);
}
.upg-container button:active{
    transform:translateY(1px);
    box-shadow:0 3px 5px rgba(0,0,0,0.2);
}
.upg-dark{
    background:#222;
    color:#fff;
}
body.upg-dark .upg-left-panel, body.upg-dark .upg-right-panel{
    background:#2c2c2c;
    color:#f0f0f0;
}
body.upg-dark textarea{
    background:#444;
    color:#fff;
    border:1px solid #555;
}
@media (max-width: 768px) {
    .upg-page-container {
        flex-direction: column;
    }
    .upg-left-panel, .upg-right-panel {
        margin-right: 0;
        margin-bottom: 20px;
    }
}