/* Simplified CSS */
.vte-ai-container { background: #fdfbf7; padding: 25px; border-radius: 12px; border: 1px solid #e0e0e0; max-width: 100%; margin: 20px auto; font-family: sans-serif; }
.vte-title { margin-top: 0; font-size: 22px; font-weight: 700; }
#vte-problem-input { width: 100%; padding: 12px; margin-bottom: 10px; border: 1px solid #ccd0d5; border-radius: 8px; box-sizing: border-box; resize: vertical; }
.vte-file-upload { margin-bottom: 15px; background: #fff; padding: 10px; border: 1px dashed #ccc; border-radius: 8px; }
.vte-file-upload input { display: block; margin-top: 5px; }
#vte-image-preview img { max-width: 100px; margin-top: 10px; border-radius: 5px; }
#vte-diagnose-btn { background: #d32f2f; color: white; border: none; padding: 12px 24px; cursor: pointer; border-radius: 8px; font-weight: 600; width: 100%; }
.vte-result-box { margin-top: 25px; background: white; padding: 20px; border-radius: 10px; border: 1px solid #eee; }
.vte-part-card { display: flex; justify-content: space-between; align-items: center; border: 1px solid #eaeaea; padding: 15px; border-radius: 8px; margin-bottom: 10px; background: #fafafa; }
.vte-buy-btn { background: #ffd814; color: #0f1111; padding: 8px 16px; border-radius: 20px; font-weight: 600; text-decoration: none !important; }

.vte-chat-container { border: 1px solid #ddd; border-radius: 10px; overflow: hidden; background: #fff; max-width: 400px; margin: 20px auto; font-family: sans-serif; }
.vte-chat-header { background: #d32f2f; color: #fff; padding: 15px; font-weight: bold; text-align: center; }
.vte-chat-box { height: 350px; overflow-y: auto; padding: 15px; background: #f9f9f9; display: flex; flex-direction: column; gap: 10px; }
.vte-msg { max-width: 80%; padding: 10px 14px; border-radius: 15px; font-size: 14px; line-height: 1.4; }
.ai-msg { background: #e0e0e0; align-self: flex-start; border-bottom-left-radius: 2px; }
.user-msg { background: #d32f2f; color: white; align-self: flex-end; border-bottom-right-radius: 2px; }
.vte-chat-input-area { display: flex; border-top: 1px solid #ddd; }
#vte-chat-input { flex-grow: 1; border: none; padding: 12px; outline: none; }
#vte-chat-send-btn { background: #1a1a1a; color: white; border: none; padding: 0 20px; cursor: pointer; font-weight: bold; }