body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: #f4f4f9;
    color: #333;
}
.container {
    max-width: 900px;
    margin: 40px auto;
    padding: 20px;
    background-color: #fff;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
}
header {
    border-bottom: 3px solid #007bff;
    padding-bottom: 10px;
    margin-bottom: 20px;
}
header h1 {
    color: #007bff;
    font-weight: 700;
    margin: 0;
}
header p {
    color: #666;
    font-size: 1.1em;
}
h2 {
    color: #333;
    border-bottom: 2px solid #eee;
    padding-bottom: 5px;
    margin-top: 30px;
}
h3 {
    color: #007bff;
    margin-top: 20px;
}
ul {
    list-style: disc;
    margin-left: 20px;
    padding-left: 0;
}
.card {
    background-color: #f9f9f9;
    border-left: 5px solid #28a745;
    padding: 15px;
    margin-bottom: 15px;
    border-radius: 4px;
}
.card h3 {
    color: #28a745;
    margin-top: 0;
}
table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 15px;
}
th, td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}
th {
    background-color: #007bff;
    color: white;
    font-weight: 500;
}
tr:nth-child(even) {
    background-color: #f2f2f2;
}
.total-row td {
    background-color: #ffc107;
    font-weight: 700;
    color: #333;
    border-top: 2px solid #ffc107;
}
.note {
    background-color: #fff3cd;
    color: #856404;
    padding: 10px;
    border: 1px solid #ffeeba;
    border-radius: 4px;
    margin-top: 20px;
}
footer {
    text-align: center;
    margin-top: 40px;
    padding-top: 10px;
    border-top: 1px solid #ddd;
    color: #666;
    font-size: 0.9em;
}