body {
    font-family: 'Vazir', 'Tahoma', sans-serif;
    background-color: #f0f0f0;
    margin: 0;
    padding: 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background-color: #fff;
    padding: 20px;
    border-radius: 5px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

h1 {
    text-align: center;
    color: #333;
}

.toolbar {
    margin-bottom: 20px;
}

button {
    background-color: #4CAF50;
    color: white;
    padding: 10px 15px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    margin-left: 10px;
}

button:hover {
    background-color: #45a049;
}

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

.file-list {
    border: 1px solid #ddd;
    border-radius: 4px;
}

.file-header {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    background-color: #f2f2f2;
    padding: 10px;
    font-weight: bold;
}

.file-item {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    padding: 10px;
    border-top: 1px solid #ddd;
}

.file-item:hover {
    background-color: #f5f5f5;
}

.popup {
    display: none;
    position: fixed;
    z-index: 1;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.4);
}

.popup-content {
    background-color: #fefefe;
    margin: 15% auto;
    padding: 20px;
    border: 1px solid #888;
    width: 80%;
    max-width: 600px;
    border-radius: 5px;
}

#fileContent {
    width: 100%;
    height: 300px;
    margin-bottom: 10px;
}