.isitprime-container {
    max-width: 600px;
    margin: 20px auto;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.input-area {
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.number-input {
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    width: 150px;
    font-size: 16px;
}

.button {
    padding: 8px 16px;
    border: 1px solid #fff;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
}

.results-area {
    padding: 15px;
    border-radius: 4px;
    border: 1px solid #fff;
}

.result-message {
    font-size: 18px;
    margin-bottom: 10px;
}

.result-detail {
    margin-top: 10px;
    color: #fff;
}

.is-prime {
    color: #2e7d32;
}

.not-prime {
    color: #c62828;
}

.is-emirp {
    font-weight: bold;
}

#prime-result, #emirp-result {
    margin: 8px 0;
    padding: 5px;
    border-radius: 4px;
}

#prime-result:before, #emirp-result:before {
    font-weight: bold;
    margin-right: 8px;
}