*{
margin:0;
padding:0;
box-sizing:border-box;
font-family:Segoe UI,sans-serif;
}

body{
background:#0f172a;
color:white;
}

.sidebar{
width:240px;
height:100vh;
position:fixed;
background:#111827;
padding:20px;
}

.logo{
font-size:22px;
font-weight:bold;
margin-bottom:25px;
color:#38bdf8;
}

.menu a{
display:block;
padding:12px;
margin-bottom:10px;
border-radius:10px;
background:#1e293b;
color:white;
text-decoration:none;
}

.menu a:hover{
background:#38bdf8;
}

.main{
margin-left:240px;
padding:25px;
}

.card-grid{
display:grid;
grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
gap:20px;
margin-top:20px;
}

.card{
background:#1e293b;
padding:20px;
border-radius:20px;
}

.card h1{
margin-top:10px;
color:#38bdf8;
}

.form-box,.table-box{
background:#1e293b;
padding:20px;
border-radius:20px;
margin-top:20px;
overflow:auto;
}

input,select,textarea{
width:100%;
padding:12px;
border:none;
border-radius:10px;
margin-bottom:15px;
background:#0f172a;
color:white;
}

button{
padding:12px 20px;
border:none;
border-radius:10px;
background:#38bdf8;
color:white;
cursor:pointer;
}

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

table th,table td{
padding:12px;
border-bottom:1px solid #334155;
}

@media(max-width:768px){

.sidebar{
width:100%;
height:auto;
position:relative;
}

.main{
margin-left:0;
}

}