body {
    background:#0D1117;
    color:#E5E7EB;
    margin:0;
    font-family:system-ui, sans-serif;
}

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

.sidebar {
    width:230px;
    background:#161B22;
    padding:20px;
}

.sidebar h2 {
    margin-top:0;
    font-size:18px;
    margin-bottom:20px;
}

.sidebar a {
    display:block;
    padding:10px;
    border-radius:8px;
    text-decoration:none;
    margin-bottom:5px;
    color:#E5E7EB;
    background:#1F2937;
}

.sidebar a:hover {
    background:#008CFF;
}

.content {
    flex:1;
    padding:20px;
}

.card {
    background:#161B22;
    padding:20px;
    border-radius:12px;
    margin-bottom:20px;
}

.btn {
    padding:8px 14px;
    border-radius:8px;
    border:none;
    background:#008CFF;
    color:white;
    text-decoration:none;
    cursor:pointer;
}

input, select, textarea {
    width:100%;
    padding:8px;
    margin:5px 0 15px 0;
    border-radius:8px;
    border:1px solid #1F2937;
    background:#0D1117;
    color:#E5E7EB;
}