:root{--primary: #2563eb;--primary-dark: #1d4ed8;--primary-soft: #eef1fc;--gradient: linear-gradient(135deg, var(--primary), var(--primary-dark));--surface: #ffffff;--bg: #eef1f6;--border: #e6e9ef;--text: #1e293b;--text-muted: #64748b;--text-faint: #94a3b8;--danger-bg: #fef2f2;--danger-text: #b91c1c;--radius-lg: 20px;--radius-md: 14px;--radius-sm: 10px}*{box-sizing:border-box}html,body,#root{height:100%;margin:0;overflow:hidden}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;display:flex;align-items:center;justify-content:center;padding:20px}.app-shell{height:min(680px,100%);width:420px;max-width:calc(100vw - 40px);background:var(--surface);border-radius:var(--radius-lg);box-shadow:0 20px 60px #0f172a1f,0 2px 8px #0f172a0f;overflow:hidden;position:relative;display:flex;flex-direction:column}.brand-bar{height:4px;flex-shrink:0;background:var(--gradient)}@media (max-width: 480px){body{padding:0}.app-shell{width:100%;max-width:none;height:100%;border-radius:0;box-shadow:none}}.step-wrapper{flex:1;width:100%;display:flex;flex-direction:column;min-height:0;min-width:0;overflow-x:hidden}.step{height:100%;width:100%;display:flex;flex-direction:column;padding:24px 20px 16px;min-height:0;min-width:0}.step-header{margin-bottom:16px}.step-eyebrow{display:inline-block;font-size:11px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--primary);background:var(--primary-soft);padding:3px 9px;border-radius:999px;margin-bottom:8px}.step-title{margin:0 0 4px;font-size:20px;font-weight:700;color:var(--text)}.step-subtitle{margin:0;font-size:13px;color:var(--text-muted)}.back-link{display:inline-flex;align-items:center;gap:6px;align-self:flex-start;background:none;border:none;color:var(--text-muted);cursor:pointer;font-size:13px;font-weight:600;padding:6px 8px 6px 4px;margin:-6px 0 4px -4px;border-radius:var(--radius-sm);transition:background .15s,color .15s}.back-link:hover{background:var(--bg);color:var(--text)}.search-box{position:relative;margin-bottom:14px;flex-shrink:0}.search-icon{position:absolute;left:13px;top:50%;transform:translateY(-50%);color:var(--text-faint);pointer-events:none}.search-box input{width:100%;padding:11px 14px 11px 38px;border:1px solid var(--border);border-radius:var(--radius-md);font-size:14px;background:#fafbfc;transition:border-color .15s,box-shadow .15s}.search-box input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #2563eb1f;background:#fff}.list{flex:1;overflow-y:auto;overflow-x:hidden;display:flex;flex-direction:column;gap:6px;min-height:0;min-width:0;margin:0 -6px;padding:0 6px}.list-card{width:100%;display:flex;align-items:center;gap:12px;padding:10px 12px;border:1px solid transparent;background:transparent;border-radius:var(--radius-md);text-align:left;cursor:pointer;font:inherit;color:inherit}.list-card:hover{background:#f8fafc;border-color:var(--border)}.list-card-lg{padding:12px;align-items:flex-start}.list-card-body{display:flex;flex-direction:column;gap:2px;min-width:0}.list-card-title{font-size:14px;font-weight:600;color:var(--text);min-width:0;overflow-wrap:anywhere}.list-card-desc{font-size:12.5px;color:var(--text-muted);line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;overflow-wrap:anywhere}.state-message{display:flex;flex-direction:column;align-items:center;gap:10px;text-align:center;color:var(--text-faint);font-size:13px;padding:40px 16px}.state-error{color:var(--danger-text)}.state-message-inline{flex-direction:row;padding:0;text-align:left;font-size:13px}.login-form{display:flex;flex-direction:column;gap:14px}.field{display:flex;flex-direction:column;gap:6px}.field-label{font-size:12.5px;font-weight:600;color:var(--text-muted)}.field input{padding:11px 14px;border:1px solid var(--border);border-radius:var(--radius-md);font-size:14px;background:#fafbfc;transition:border-color .15s,box-shadow .15s}.field input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #2563eb1f;background:#fff}.primary-button{margin-top:6px;padding:12px;border:none;border-radius:var(--radius-md);background:var(--gradient);color:#fff;font-size:14px;font-weight:600;cursor:pointer;transition:opacity .15s}.primary-button:disabled{opacity:.6;cursor:default}.skeleton-row{display:flex;align-items:center;gap:12px;padding:10px 12px}.skeleton-lines{flex:1;display:flex;flex-direction:column;gap:6px}.skeleton{background:linear-gradient(90deg,#eef1f6 25%,#e4e8ef 37%,#eef1f6 63%);background-size:400% 100%;animation:shimmer 1.4s ease infinite;border-radius:6px}.skeleton-avatar{width:40px;height:40px;border-radius:50%;flex-shrink:0}.skeleton-line{height:12px;width:70%}.skeleton-line-short{width:40%}@keyframes shimmer{0%{background-position:100% 0}to{background-position:-100% 0}}.avatar{border-radius:50%;flex-shrink:0}.avatar-img{object-fit:cover}.avatar-fallback{display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700}.chat{height:100%;display:flex;flex-direction:column;min-height:0}.chat-header{display:flex;align-items:center;gap:10px;padding:16px;flex-shrink:0;background:var(--gradient);color:#fff}.icon-button{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border:none;background:transparent;border-radius:50%;color:var(--text-muted);cursor:pointer;flex-shrink:0;transition:background .15s}.icon-button:hover{background:var(--bg)}.icon-button-on-brand{color:#fff}.icon-button-on-brand:hover{background:#ffffff2e}.avatar-ring{box-shadow:0 0 0 2px #ffffff80}.chat-header-text{min-width:0}.chat-title{font-weight:700;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat-subtitle{font-size:12px;color:#ffffffbf}.chat-messages{flex:1;overflow-y:auto;padding:18px 16px;display:flex;flex-direction:column;gap:10px;min-height:0}.chat-empty{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;color:var(--text-faint);text-align:center;padding:0 24px}.chat-empty p{margin:0;font-size:13px}.chat-row{display:flex;align-items:flex-end;gap:8px}.chat-row-user{justify-content:flex-end}.chat-bubble{max-width:76%;padding:10px 14px;border-radius:16px;font-size:14px;line-height:1.45;white-space:pre-wrap;word-break:break-word}.chat-bubble-user{background:var(--gradient);color:#fff;border-bottom-right-radius:4px}.chat-bubble-assistant{background:#f1f3f6;color:var(--text);border-bottom-left-radius:4px}.chat-bubble-error{background:var(--danger-bg);color:var(--danger-text);font-size:12.5px;border-bottom-left-radius:4px}.chat-typing{display:flex;align-items:center;gap:4px;padding:14px}.chat-typing .dot{width:6px;height:6px;border-radius:50%;background:var(--text-faint);animation:bounce 1.2s infinite ease-in-out}.chat-typing .dot:nth-child(2){animation-delay:.15s}.chat-typing .dot:nth-child(3){animation-delay:.3s}@keyframes bounce{0%,60%,to{transform:translateY(0);opacity:.5}30%{transform:translateY(-4px);opacity:1}}.chat-input-row{display:flex;align-items:center;gap:8px;padding:12px 14px;border-top:1px solid var(--border);flex-shrink:0}.chat-input-row input{flex:1;padding:11px 16px;border:1px solid var(--border);border-radius:999px;font-size:14px;background:#fafbfc;transition:border-color .15s,box-shadow .15s}.chat-input-row input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #2563eb1f;background:#fff}.chat-input-row input:disabled{opacity:.6}.chat-input-row button{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border:none;border-radius:50%;background:var(--gradient);color:#fff;cursor:pointer;flex-shrink:0;transition:opacity .15s,transform .1s}.chat-input-row button:active{transform:scale(.94)}.chat-input-row button:disabled{opacity:.4;cursor:default}