body {
    font-family: Arial, sans-serif;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    background-color: #f5f5f5;
}

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

.upload-section {
    text-align: center;
    padding: 20px;
    border: 2px dashed #ccc;
    border-radius: 4px;
    margin-bottom: 20px;
}

.button {
    background-color: #4CAF50;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    margin: 5px;
}

.button:disabled {
    background-color: #cccccc;
    cursor: not-allowed;
}

#downloadBtn {
    display: none;
    background-color: #2196F3;
}

.status {
    margin: 20px 0;
    padding: 10px;
    display: none;
    border-radius: 4px;
}

.success {
    background-color: #dff0d8;
    color: #3c763d;
    border: 1px solid #d6e9c6;
}

.error {
    background-color: #f2dede;
    color: #a94442;
    border: 1px solid #ebccd1;
}

.filter-section {
    margin: 20px 0;
    padding: 10px;
    background-color: #f8f9fa;
    border-radius: 4px;
}

.grid-container {
    margin-top: 20px;
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
    font-size: 14px;
}

th, td {
    border: 1px solid #ddd;
    padding: 8px;
    text-align: left;
}

th {
    background-color: #f4f4f4;
    cursor: pointer;
}

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

tr:hover {
    background-color: #f5f5f5;
}

select {
    padding: 8px;
    margin: 0 10px;
    border-radius: 4px;
    border: 1px solid #ddd;
}

.stats-container {
    display: flex;
    gap: 20px;
    margin: 20px 0;
}

.stat-box {
    background-color: #f8f9fa;
    padding: 15px;
    border-radius: 4px;
    flex: 1;
}

.stat-box h3 {
    margin: 0 0 10px 0;
    color: #2196F3;
}