.doc-badge.ready{background:rgba(52,168,83,.1);color:#4caf50;border:1px solid rgba(52,168,83,.3)}.doc-badge.error{background:rgba(255,59,48,.1);color:#ff6b6b;border:1px solid rgba(255,59,48,.2)}.welcome{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;min-height:60vh;gap:8px;animation:fadeIn .4s ease}.welcome-emoji{font-size:52px;margin-bottom:4px}.welcome h2{font-size:24px;font-weight:700;color:var(--text-primary);letter-spacing:-.5px}.welcome p{font-size:14px;color:var(--text-secondary);max-width:400px;line-height:1.6;margin-top:4px}.chips{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;max-width:500px;margin-top:16px}.chip{padding:8px 14px;background:var(--surface);border:1px solid var(--border);border-radius:20px;color:var(--text-secondary);font-size:13px;cursor:pointer;transition:all .2s}.chip:hover{background:var(--primary);color:white;border-color:var(--primary)}.msg{display:flex;gap:10px;max-width:100%;animation:msgIn .25s ease}.msg.user{justify-content:flex-end}.msg-avatar{width:28px;height:28px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:14px;flex-shrink:0;margin-top:2px}.msg.assistant .msg-avatar{background:linear-gradient(135deg,#ff8c00,#e65c00)}.msg-bubble{padding:10px 14px;border-radius:12px;max-width:72%;line-height:1.55;font-size:14px;word-wrap:break-word}.msg.user .msg-bubble{background:var(--user-bubble);color:#d6eaff;border-bottom-right-radius:4px}.msg.assistant .msg-bubble{background:var(--bot-bubble);color:var(--text-primary);border:1px solid var(--border);border-bottom-left-radius:4px}.msg-bubble strong{color:var(--primary-light)}.typing-dots{display:flex;gap:4px;align-items:center;padding:4px 0}.typing-dots span{width:6px;height:6px;background:var(--text-secondary);border-radius:50%;animation:dot 1.2s infinite}.typing-dots span:nth-child(2){animation-delay:.2s}.typing-dots span:nth-child(3){animation-delay:.4s}.error-bar{background:rgba(255,59,48,.08);border-left:3px solid #ff4d4d;padding:10px 14px;border-radius:4px;color:#f99;font-size:13px}@media (max-width:600px){.msg-bubble{max-width:85%}}