.het-container {
    max-width: 1200px;
    margin: 20px auto;
    padding: 20px;
    background: #2d2d2d;
    border-radius: 8px;
}

.het-editor-wrapper {
    position: relative;
    margin: 15px 0;
}

.het-code-input {
    width: 100%;
    height: 400px;
    padding: 15px;
    padding-left: 45px;
    background: #1e1e1e;
    border: 1px solid #333;
    color: #d4d4d4;
    font-family: 'Fira Code', monospace;
    font-size: 14px;
    line-height: 1.5;
    white-space: pre;
    tab-size: 4;
    resize: vertical;
}

.het-line-numbers {
    position: absolute;
    left: 0;
    top: 0;
    width: 40px;
    height: 100%;
    padding: 15px 5px;
    text-align: right;
    color: #666;
    background: #252526;
    border-right: 1px solid #333;
    overflow: hidden;
}

.het-run-button {
    display: block;
    width: 200px;
    margin: 20px auto;
    padding: 12px;
    background: #569cd6;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

.het-output-frame {
    width: 100%;
    height: 500px;
    border: none;
    background: white;
    margin-top: 20px;
}