body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    display: flex;
    flex-direction: row;
    background-color: #ecf0f1;
    min-height: 100vh;
}

main {
    display: flex;
    flex-direction: column;
    padding: 12px;
}

a:hover {
    text-decoration: underline;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.sidebar {
    width: 250px;
    background-color: #052d49;
    color: white;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.sidebar a {
    color: white;
    text-decoration: none;
    padding: 12px 15px;
    border-radius: 5px;
    transition: background-color 0.3s;
    display: block;
}

.sidebar a:hover {
    background-color: #34495e;
    text-decoration: none;
}

.sidebar a.active {
    background-color: #34495e;
    font-weight: bold;
}

.sidebar .logout-btn {
    background-color: #e74c3c;
    margin-top: auto;
    text-align: center;
}

.sidebar .logout-btn:hover {
    background-color: #c0392b;
    text-decoration: none;
}

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

.card {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    margin-bottom: 20px;
}