body, html {
background-color: #f8f9fa; 
margin: 0;
padding: 0;
height: 100%;
font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen,
 Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
background-color: #ffffff;
color: #6b7280;
}

#container {
max-width: 1200px;
margin: 80px auto 40px auto;
padding: 0 20px 60px 20px;
}

button {
background-color: #0275d8;
border: none;
color: white;
padding: 12px 26px;
font-weight: 700;
font-size: 16px;
border-radius: 18px;
cursor: pointer;
transition: background-color 0.3s ease;
margin: 10px 0;
}

button:hover {
background-color: #025aa5;
}

.sidebar { background-color: #343a40; height: 100vh; padding: 20px; }
.sidebar a { color: white; display: block; margin-bottom: 10px; }
.sidebar a:hover { color: #ffc107; }