* {
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    margin: 0;
    padding: 0;
}

/* Chat Messages Layout */
#chat-messages {
    scroll-behavior: smooth;
}

#chat-messages .message-user,
#chat-messages .message-assistant {
    max-width: 75%;
    margin-bottom: 1rem;
}

#chat-messages .message-user {
    margin-left: auto;
}

#chat-messages .message-assistant {
    margin-right: auto;
}

.message-bubble {
    border-radius: 1.25rem;
    padding: 1rem 1.25rem;
    word-wrap: break-word;
    line-height: 1.5;
}

.message-bubble.message-user {
    background: linear-gradient(135deg, #0d6efd 0%, #0a58ca 100%);
    color: white;
    border-bottom-right-radius: 0.25rem;
    box-shadow: 0 2px 8px rgba(13, 110, 253, 0.2);
}

.message-bubble.message-assistant {
    background: white;
    color: #212529;
    border: 1px solid #e9ecef;
    border-bottom-left-radius: 0.25rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

/* Cards de productos en el chat */
.message-bubble .card {
    transition: all 0.3s ease;
    border: 1px solid #e0e0e0;
    border-radius: 0.75rem;
    overflow: hidden;
    background: white;
}

.message-bubble .card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 16px rgba(0,0,0,0.12) !important;
    border-color: #0d6efd;
}

.message-bubble .card-img-top {
    border-radius: 0.75rem 0.75rem 0 0;
    transition: transform 0.3s ease;
}

.message-bubble .card:hover .card-img-top {
    transform: scale(1.05);
}

.message-bubble h6 {
    font-size: 0.9rem;
    font-weight: 600;
    color: #212529;
    margin-bottom: 0.5rem;
}

.message-bubble .badge {
    font-size: 0.7rem;
    font-weight: 500;
    padding: 0.35em 0.65em;
}

/* Input mejorado */
#message-input:focus {
    border-color: #0d6efd;
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.15);
    outline: none;
}

#send-button {
    transition: all 0.2s ease;
}

#send-button:hover {
    transform: translateY(-50%) scale(1.1);
}

#send-button:active {
    transform: translateY(-50%) scale(0.95);
}

/* Scrollbar personalizado */
#chat-messages::-webkit-scrollbar {
    width: 8px;
}

#chat-messages::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 10px;
}

#chat-messages::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 10px;
}

#chat-messages::-webkit-scrollbar-thumb:hover {
    background: #a8a8a8;
}

/* Empty state */
#empty-state {
    animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Animación para nuevos mensajes */
.message-bubble {
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive */
@media (max-width: 768px) {
    #chat-messages .message-user,
    #chat-messages .message-assistant {
        max-width: 85%;
    }
    
    .message-bubble {
        padding: 0.75rem 1rem;
        font-size: 0.9rem;
    }
}

/* Loading indicator */
#chat-status.text-danger {
    color: #dc3545 !important;
    font-weight: 500;
}

/* Product cards grid */
.message-bubble .row.g-2 {
    margin-left: -0.25rem;
    margin-right: -0.25rem;
}

.message-bubble .row.g-2 > * {
    padding-left: 0.25rem;
    padding-right: 0.25rem;
}

/* Botón nueva conversación */
#new-conversation-btn {
    transition: all 0.2s ease;
    border-radius: 0.5rem;
}

#new-conversation-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

#new-conversation-btn:active {
    transform: translateY(0);
}