body {
    font-family: Arial, sans-serif;
    background-color: #282c34;
    color: #e0e0e0;
    margin: 0;
    padding: 20px;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    background-color: #3c404b;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

h1, p {
    text-align: center;
}

h1 {
    color: #61dafb;
}

p {
    color: #a8dadc;
    margin-bottom: 30px;
}

.comparer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 30px;
    margin-bottom: 30px;
}

.comparison-set {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.comparer-box, .diff-output-box {
    background-color: #2f333a;
    padding: 20px;
    border-radius: 8px;
    box-shadow: inset 0 2px 5px rgba(0, 0, 0, 0.2);
}

.box-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

h2 {
    color: #a8dadc;
    margin: 0;
}

.sort-btn, #add-box-btn {
    background-color: #61dafb;
    color: #282c34;
    border: none;
    padding: 8px 16px;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
    transition: background-color 0.2s;
}

.sort-btn:hover, #add-box-btn:hover {
    background-color: #52c5e7;
}

#add-box-btn {
    display: block;
    width: 100%;
    padding: 12px;
    font-size: 16px;
}

textarea {
    width: 100%;
    min-height: 250px;
    padding: 15px;
    border: 1px solid #555;
    border-radius: 5px;
    background-color: #1e2126;
    color: #e0e0e0;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 14px;
    resize: vertical;
    box-sizing: border-box;
}

textarea:focus {
    outline: none;
    border-color: #61dafb;
    box-shadow: 0 0 0 3px rgba(97, 218, 251, 0.3);
}

.diff-display {
    min-height: 250px;
    padding: 15px;
    border: 1px solid #555;
    border-radius: 5px;
    background-color: #1e2126;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 14px;
    white-space: pre-wrap;
    word-break: break-all;
    overflow-x: auto;
}

/* Diff highlighting styles */
.added {
    background-color: rgba(76, 175, 80, 0.3);
    display: block;
}

.removed {
    background-color: rgba(244, 67, 54, 0.3);
    text-decoration: line-through;
    display: block;
}

.unchanged {
    color: #999;
    display: block;
}