.rgb-drop-zone{

max-width:800px;

margin:50px auto;

padding:60px;

border:3px dashed #1e88e5;

border-radius:15px;

text-align:center;

background:#fafafa;

transition:.3s;

}

.rgb-drop-zone:hover{

background:#f2f8ff;

}

.rgb-icon{

font-size:60px;

margin-bottom:20px;

}

.browse-btn{

display:inline-block;

background:#1e88e5;

color:#fff;

padding:14px 35px;

border-radius:8px;

cursor:pointer;

margin-top:15px;

}

#rgb_file{

display:none;

}

.drag-over{

background:#e3f2fd;

border-color:#1565c0;

transform:scale(1.02);

}

.selected-file{

margin-top:20px;

font-size:16px;

color:#2e7d32;

font-weight:bold;

}