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

body {
    margin: 0;
    padding: 20px;
    background: #f5f5f5;
}

.page {
    max-width: 1100px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 24px;
    align-items: start;
}

.left {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.block {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 12px;
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 8px;
}

input,
textarea,
button {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #bbb;
    border-radius: 6px;
    font-size: 14px;
}

textarea {
    resize: none;
    min-height: 188px;
}

button {
    cursor: pointer;
    background: #f0f0f0;
}

button:hover {
    background: #e7e7e7;
}

.right {
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 12px;
    min-height: 852px;
    display: flex;
    flex-direction: column;
}

.right h3 {
    margin: 0 0 12px;
    font-size: 18px;
}

.response {
    flex: 1;
    border: 1px solid #bbb;
    border-radius: 6px;
    padding: 12px;
    background: #fafafa;
    white-space: pre-wrap;
    overflow: auto;
}

@media (max-width: 768px) {
    .page {
        grid-template-columns: 1fr;
    }
}

#apiResponse {
    font-family: Consolas, monospace;
}