body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    background: #f5f5f5;
    color: #222;
}

.page {
    max-width: 860px;
    margin: 0 auto;
    padding: 40px 20px;
}

.card {
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 12px;
    padding: 28px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
}

h1 {
    margin-top: 0;
    font-size: 28px;
}

.field {
    margin-top: 20px;
}

.sentence-field {
    margin-top: 32px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 700;
}

input,
textarea {
    width: 100%;
    box-sizing: border-box;
    padding: 10px 12px;
    border: 1px solid #bbb;
    border-radius: 8px;
    font: inherit;
}

textarea {
    resize: vertical;
}

button {
    margin-top: 14px;
    padding: 10px 18px;
    border: 0;
    border-radius: 8px;
    background: #1f5f9f;
    color: #fff;
    font: inherit;
    cursor: pointer;
}

button:hover {
    background: #164a7c;
}

.status {
    margin-top: 14px;
    padding: 12px;
    border: 1px solid #efcf7b;
    border-radius: 8px;
    background: #fff8e5;
    color: #5c4700;
}

.output {
    margin-top: 14px;
    min-height: 100px;
    padding: 14px;
    border-radius: 8px;
    background: #111;
    color: #eee;
    white-space: pre-wrap;
}

input:disabled,
textarea:disabled,
button:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

button:disabled:hover {
    background: #1f5f9f;
}