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

body {
    font-family: Arial, sans-serif;
    background: #f5f5f5;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

header {
    background: #0053E2;
    color: white;
    padding: 20px;
    margin-bottom: 20px;
}

header h1 {
    margin-bottom: 15px;
}

nav a {
    color: white;
    text-decoration: none;
    margin-right: 20px;
    padding: 5px 10px;
    border-radius: 4px;
}

nav a:hover {
    background: rgba(255, 255, 255, 0.2);
}

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

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

th, td {
    border: 1px solid #ddd;
    padding: 12px;
    text-align: left;
}

th {
    background: #0053E2;
    color: white;
}

tr:nth-child(even) {
    background: #f9f9f9;
}

.btn {
    background: #0053E2;
    color: white;
    padding: 8px 16px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

.btn:hover {
    background: #003d99;
}