/* Custom styles for a better look and feel */
body {
    font-family: 'Inter', sans-serif;
}
.tab-button {
    transition: all 0.3s ease;
}
.tab-button.active {
    background-color: #4f46e5; /* indigo-600 */
    color: white;
}
.tab-button:not(.active):hover {
    background-color: #374151; /* gray-700 */
}
textarea {
    background-color: #1f2937; /* gray-800 */
    border-color: #4b5563; /* gray-600 */
    transition: border-color 0.3s ease;
}
textarea:focus {
    outline: none;
    border-color: #4f46e5; /* indigo-600 */
    box-shadow: 0 0 0 2px #312e81; /* indigo-900 */
}
.btn {
    transition: all 0.3s ease;
}
.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
}
.loader {
    border-top-color: #4f46e5;
    animation: spin 1s linear infinite;
}
@keyframes spin {
    to { transform: rotate(360deg); }
}