.lab-container{max-width:500px;margin:20px auto;padding:15px;background:#fff;border-radius:10px;font-family:Arial,sans-serif;}
.lab-container h2{text-align:center;margin-bottom:15px;}
.lab-container table{width:100%;border-collapse:collapse;}
.lab-container table, th, td{border:1px solid #ccc;}
th, td{padding:8px;text-align:left;font-size:14px;}
button, input{padding:8px;margin:5px 0;border-radius:5px;font-size:14px;}
#upload-popup{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);background:#fff;padding:20px;border-radius:10px;z-index:999;width:90%;max-width:400px;box-shadow:0 0 15px rgba(0,0,0,0.3);}
.footer-bar{position:fixed;bottom:0;left:0;width:100%;background:#fff;border-top:1px solid #ccc;display:flex;justify-content:space-around;padding:10px 0;}
.footer-bar button{flex:1;margin:0 5px;background:#39cabb;color:#fff;display:flex;align-items:center;justify-content:center;}
.footer-bar button i{margin-right:5px;}
@media(max-width:500px){th,td{font-size:13px;}button,input{font-size:13px;}}