* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}

body {
    background: linear-gradient(145deg, #454545, #1f1f1f);
    color: #fff;
}

.container {
    width: 100%;
    height: 100vh;
    display: flex;
    padding: 20px;
    gap: 10px;
}

.left,
.right {
    flex: 1;
    display: flex;
    flex-direction: column;
}

label {
    display: flex;
    align-items: center;
    background: #000;
    padding: 6px 10px;
    font-size: 14px;
}

label i {
    margin-right: 8px;
    font-size: 18px;
}

textarea {
    width: 100%;
    height: 30%;
    background: #1f1f1f;
    color: #fff;
    padding: 12px;
    border: none;
    outline: none;
    resize: none;
    font-size: 16px;
}

iframe {
    width: 100%;
    height: 100%;
    background: #fff;
    border: none;
}