* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

header {
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid #ddd;
}

main {
    display: flex;
    gap: 20px;
}

.editor-panel, .preview-panel {
    flex: 1;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px;
    background-color: #f8f9fa;
    border-bottom: 1px solid #eee;
}

.panel-header h2 {
    font-size: 1.2rem;
}

.controls {
    display: flex;
    gap: 8px;
}

button {
    padding: 6px 12px;
    border: none;
    border-radius: 4px;
    background-color: #4a6ee0;
    color: white;
    cursor: pointer;
    font-size: 0.9rem;
    transition: background-color 0.2s;
}

button:hover {
    background-color: #3a5bd0;
}

#command-input {
    width: 100%;
    height: 300px;
    padding: 15px;
    border: none;
    font-family: 'Courier New', monospace;
    font-size: 14px;
    resize: vertical;
}

.settings {
    display: flex;
    padding: 15px;
    gap: 15px;
    background-color: #f8f9fa;
    border-top: 1px solid #eee;
}

.setting {
    display: flex;
    align-items: center;
    gap: 8px;
}

.setting label {
    font-size: 0.9rem;
}

.setting input {
    width: 80px;
    padding: 5px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.preview-container {
    position: relative;
    padding: 15px;
    min-height: 400px;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: auto;
}

#preview {
    max-width: 100%;
    border: 1px solid #ddd;
    transition: transform 0.2s;
}

#loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 1.2rem;
    color: #666;
}

.hidden {
    display: none;
}

@media (max-width: 768px) {
    main {
        flex-direction: column;
    }
    
    .settings {
        flex-wrap: wrap;
    }
}