.lookup-form {
    display: flex;
    gap: 1rem;
    margin: 2rem 0;
}

.lookup-form input {
    margin-top: 0;
    flex-grow: 1;
}

.lookup-form button {
    margin-top: 0;
    width: auto;
    white-space: nowrap;
}

#results-container {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--light-color);
}

#whois-results {
    background-color: var(--background-color);
    border: 1px solid var(--light-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    white-space: pre-wrap;
    word-wrap: break-word;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.9rem;
    line-height: 1.5;
    max-height: 600px;
    overflow-y: auto;
}

body.dark-mode #whois-results {
    border-color: var(--gray-color);
}

@media (max-width: 600px) {
    .lookup-form {
        flex-direction: column;
    }
}