body {
    background-color: #F7F7F2;
    font-family: 'Inter', sans-serif;
    padding: 20px;
    color: #2D2D2D;
}

.container {
    max-width: 700px;
    margin: auto;
    padding: 30px;
    background: #FFF9D6;
    border-radius: 18px;
    border: 1px solid rgba(0, 0, 0, 0.1);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
}

h1 {
    font-size: 32px;
    text-align: center;
    color: #1A1A1A;
}

.subtitle {
    text-align: center;
    margin-bottom: 20px;
    opacity: 0.8;
    color: #4A4A4A;
}

textarea {
    width: 100%;
    height: 140px;
    padding: 14px;
    background: #FFFBEA;
    color: #333;
    border-radius: 10px;
    border: 1px solid rgba(0, 0, 0, 0.15);
    font-size: 15px;
    outline: none;
}

textarea::placeholder {
    color: #777;
}

button {
    width: 100%;
    padding: 12px;
    margin-top: 20px;
    background: #6E9CFF;
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    cursor: pointer;
    transition: 0.2s;
}

button:hover {
    background: #4A7BFF;
}

.results {
    margin-top: 30px;
}

.hidden {
    display: none;
}

.output-box {
    background: #FFFFFF;
    padding: 12px;
    border-radius: 10px;
    font-family: monospace;
    word-break: break-all;
    border: 1px solid rgba(0, 0, 0, 0.15);
    margin-bottom: 15px;
    color: #333;
}