body {
    font-family: Arial, sans-serif;
    background-color: #f0f2f5;
    margin: 0;
    padding: 20px;
    direction: rtl;
}

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

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

.file-upload, .unit-selection, .controls, .diff-section {
    margin: 20px 0;
}

input[type="file"], select, input[type="text"] {
    padding: 8px;
    margin: 5px;
    border: 1px solid #ccc;
    border-radius: 5px;
}

button {
    padding: 8px 15px;
    margin: 5px;
    background-color: #007bff;
    color: #fff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s;
}

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

button:hover:not(:disabled) {
    background-color: #0056b3;
}

.unit-btn {
    background-color: #28a745;
}

.unit-btn:hover:not(:disabled) {
    background-color: #218838;
}

#originalFilesList {
    margin: 10px 0;
    padding: 10px;
    background-color: #e9ecef;
    border-radius: 5px;
}

#modifiedFilesTable, #diffTable {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

#modifiedFilesTable th, #diffTable th {
    background-color: #007bff;
    color: #fff;
    padding: 10px;
}

#modifiedFilesTable td, #diffTable td {
    border: 1px solid #ccc;
    padding: 8px;
    text-align: center;
}

.matched-file {
    background-color: #d4edda;
}

.similarity-75 {
    background-color: #fff3cd;
}

.similarity-50 {
    background-color: #f8d7da;
}

.selected-file {
    background-color: #cce5ff;
}

.dpfegr-selected {
    border-left: 4px solid #ff9800;
}

.tun-selected {
    border-left: 4px solid #f44336;
}

.special-file {
    font-weight: bold;
}

.name-matched-file {
    background-color: #e2e3e5;
}

#saveStatus {
    margin-top: 10px;
    padding: 10px;
    background-color: #d1ecf1;
    border-radius: 5px;
    color: #0c5460;
}

.hidden {
    display: none;
}