body{
margin:0;
font-family:Arial, sans-serif;
background:#0e1117;
color:white;
}

.container{
max-width:1200px;
margin:auto;
padding:20px;
}

h1{
text-align:center;
color:#00ff88;
margin-bottom:20px;
}

.card{
background:#161b22;
padding:20px;
border-radius:12px;
margin-bottom:20px;
box-shadow:0 0 15px rgba(0,0,0,0.4);
}

.top-card{
display:flex;
gap:20px;
flex-wrap:wrap;
}

button{
padding:10px 15px;
background:#00ff88;
border:none;
border-radius:6px;
cursor:pointer;
font-weight:bold;
}

input,select{
padding:10px;
margin-top:5px;
background:#0e1117;
color:#00ff88;
border:1px solid #333;
border-radius:6px;
}

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

th,td{
padding:8px;
text-align:center;
border-bottom:1px solid #222;
}

th{
background:#1f2937;
}

#chart{
margin-top:10px;
}