.copy-feedback {
    transition: all 0.3s ease;
}
.copied {
    background-color: #10b981 !important;
}
textarea {
    resize: none;
}
.preprompt-div {
    display: none;
    background-color: #4b5563;
    padding: 1rem;
    border-radius: 0.5rem;
    margin-top: 1rem;
}
.preprompt-toggle:checked ~ .preprompt-div {
    display: block;
}
.preprompt-toggle + label {
    cursor: pointer;
    color: #9ca3af;
    display: inline-block;
    margin-bottom: 0.5rem;
}
.spinner {
    display: inline-block;
    width: 1.5rem;
    height: 1.5rem;
    border: 3px solid #9ca3af;
    border-top: 3px solid #3b82f6;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-right: 0.5rem;
    vertical-align: middle;
}
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}
.timer {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 300;
    color: #9ca3af;
    vertical-align: middle;
}