body{
margin:0;
font-family:Arial;
background:#0f172a;
color:white;
}

.layout{
display:flex;
height:100vh;
}

.sidebar{
width:240px;
background:#020617;
padding:20px;
}

.logo{
font-size:20px;
font-weight:bold;
margin-bottom:30px;
}

.nav a{
display:block;
padding:10px;
margin-bottom:6px;
color:#cbd5f5;
text-decoration:none;
border-radius:6px;
}

.nav a:hover{
background:#1e293b;
}

.main{
flex:1;
padding:40px;
}

.cards{
display:grid;
grid-template-columns:repeat(3,1fr);
gap:20px;
}

.card{
background:#1e293b;
padding:20px;
border-radius:10px;
}

table{
width:100%;
border-collapse:collapse;
margin-top:20px;
}

td,th{
padding:10px;
border-bottom:1px solid #334155;
}

.calendar{
display:grid;
grid-template-columns:120px repeat(4,1fr);
gap:6px;
margin-top:30px;
}

.slot{
background:#065f46;
padding:15px;
text-align:center;
border-radius:6px;
cursor:pointer;
}