body{
font-family:Arial;
background:#f4f4f4;
padding:20px;
margin:0;
}

.title{
text-align:center;
margin-bottom:20px;
}

.card{
background:white;
padding:16px;
border-radius:12px;
margin-bottom:20px;
box-shadow:0 2px 6px rgba(0,0,0,0.1);
}

.row{
display:flex;
gap:10px;
margin-top:10px;
flex-wrap:wrap;
}

.between{
justify-content:space-between;
align-items:center;
}

input,select{
padding:10px;
border-radius:8px;
border:1px solid #ccc;
flex:1;
}

button{
background:#3f5fa3;
color:white;
border:none;
padding:10px 14px;
border-radius:8px;
cursor:pointer;
}

.table-wrap{
overflow-x:auto;
margin-top:10px;
}

table{
width:100%;
border-collapse:collapse;
}

th,td{
border:1px solid #ddd;
padding:8px;
text-align:center;
}

th{
background:#eee;
}

.col-header{
display:flex;
justify-content:space-between;
align-items:center;
}

.menu-btn{
cursor:pointer;
font-size:18px;
padding-left:6px;
}

.locked{
background:#f1f1f1;
}

.menu{
position:absolute;
background:white;
border-radius:10px;
box-shadow:0 6px 20px rgba(0,0,0,0.2);
min-width:120px;
overflow:hidden;
z-index:999;
}

.menu-item{
padding:10px 14px;
cursor:pointer;
}

.menu-item:hover{
background:#f5f5f5;
}

.divider{
height:1px;
background:#eee;
}

.danger{
color:#c0392b;
}

.hidden{
display:none;
}