body {
    font-family: Arial, sans-serif;
    background: #f4f6f8;
    margin: 0;
    padding: 20px;
    color: #333;
}

.container {
    max-width: 600px;
    margin: auto;
    background: white;
    padding: 20px 30px 40px 30px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    border-radius: 8px;
}

h1, h2 {
    text-align: center;
    margin-bottom: 20px;
}

form {
    display: flex;
    flex-wrap: wrap;
    gap: 12px 16px;
    justify-content: center;
    align-items: flex-end;
    margin-bottom: 25px;
}

label {
    flex: 1 0 100%;
    font-weight: bold;
}

select, input[type="number"], input[type="date"] {
    flex: 1 0 45%;
    padding: 8px;
    font-size: 1rem;
    border: 1px solid #ccc;
    border-radius: 4px;
}

button {
    flex: 1 0 40%;
    padding: 10px;
    font-size: 1rem;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    color: white;
    background-color: #007BFF;
    transition: background-color 0.3s ease;
}

button#export-btn {
    background-color: #28a745;
}

button#reset-btn {
    background-color: #dc3545;
}

button:hover {
    opacity: 0.9;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
}

thead {
    background-color: #007BFF;
    color: white;
}

th, td {
    padding: 10px;
    border: 1px solid #ddd;
    text-align: center;
}

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