.option-btn {
    padding: 8px 16px;
    border-radius: 20px;
    background: white;
    border: 1px solid #007bff;
    color: #007bff;
    transition: all 0.3s ease;
}

.option-btn:hover {
    background: #007bff;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 3px 6px rgba(0,0,0,0.1);
}

.option-btn:active {
    transform: translateY(0);
}

.options-container {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 15px 0;
}

/* Chat container styles */
.chat-container {
    height: 300px;
    overflow-y: auto;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    background: #f8f9fa;
    scroll-behavior: smooth;
}

.chat-message {
    margin-bottom: 10px;
    padding: 10px;
    border-radius: 10px;
    max-width: 80%;
    word-wrap: break-word;
}

.chat-message button {
    width: 100%;
    margin-top: 10px;
}

.bot-message {
    background: #e3f2fd;
    margin-right: auto;
    border-bottom-left-radius: 5px;
}

.user-message {
    background: #e8f5e9;
    margin-left: auto;
    border-bottom-right-radius: 5px;
}

/* Modal styles */
.modal-content {
    border: none;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
}

.modal-header {
    border-top-left-radius: 15px;
    border-top-right-radius: 15px;
    padding: 1rem 1.5rem;
}

.modal-header .close {
    color: white;
    opacity: 0.8;
    transition: opacity 0.3s;
}

.modal-header .close:hover {
    opacity: 1;
}

.input-group {
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
    border-radius: 25px;
    overflow: hidden;
}

#userInput {
    border: none;
    padding: 12px 20px;
}

#userInput:focus {
    box-shadow: none;
}

#sendAnswer {
    padding: 10px 25px;
    border: none;
    transition: all 0.3s ease;
}

#sendAnswer:hover {
    background-color: #0056b3;
}

.loading {
    position: relative;
    opacity: 0.7;
    pointer-events: none;
}

.loading:after {
    content: '';
    position: absolute;
    left: 50%;
    top: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid #f3f3f3;
    border-top: 2px solid #3498db;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.login-sec img {
    margin-bottom: 20px;
    max-height: 100px;
    object-fit: contain;
}