.rihg-wrapper {
    max-width: 600px;
    margin: 40px auto;
    text-align: center;
    background: #ffffff;
    padding: 30px;
    border-radius: 16px;
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.08);
    font-family: 'Segoe UI', sans-serif;
}

.rihg-wrapper h2 {
    font-size: 26px;
    margin-bottom: 25px;
    color: #333;
}

#rihg-keyword {
    width: 90%;
    padding: 12px 14px;
    font-size: 16px;
    border: 1px solid #ccc;
    border-radius: 8px;
    margin-bottom: 15px;
}

#rihg-generate,
#rihg-copy,
#rihg-try-again {
    margin-top: 12px;
    padding: 10px 22px;
    font-size: 15px;
    font-weight: 500;
    background: #0073aa;
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    margin-right: 8px;
    transition: background 0.3s ease;
}

#rihg-generate:hover,
#rihg-copy:hover,
#rihg-try-again:hover {
    background: #005a87;
}

#rihg-loading {
    margin-top: 15px;
    font-style: italic;
    color: #555;
}

#rihg-result {
    margin-top: 20px;
    display: none;
}

#rihg-hashtags {
    width: 100%;
    height: 130px;
    font-size: 14px;
    padding: 10px;
    color: #000;
    background-color: #f9f9f9;
    border: 1px solid #ddd;
    border-radius: 8px;
    resize: none;
    margin-bottom: 10px;
}