:root{--indigo: #667eea;--indigo-hover: #5a67d8;--indigo-2: #764ba2;--brand-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);--assistant-gradient: linear-gradient(135deg, #25d366 0%, #128c7e 100%);--navy: #172a3a;--page-bg: #f8f9fa;--chat-canvas: #efeae2;--surface: #ffffff;--input-bar: #f0f2f5;--user-bubble: #dcf8c6;--assistant-bubble: #ffffff;--text: #2e3440;--text-strong: #111b21;--muted: #64748b;--muted-2: #667781;--muted-3: #8696a0;--teal: #075e54;--border: #e4e7ec;--border-2: #d0d5dd;--border-3: #d1d7db;--green: #10b981;--green-dark: #059669;--green-bg: #dcfce7;--red: #dc2626;--red-bg: #fee2e2;--amber: #f59e0b;--purple: #7c3aed;--r-sm: 8px;--r-md: 12px;--r-lg: 14px;--sh-nav: 0 1px 3px rgba(0, 0, 0, .05);--sh-bubble: 0 1px 2px rgba(0, 0, 0, .08);--sh-card: 0 2px 12px rgba(0, 0, 0, .08);--sh-pop: 0 10px 30px rgba(0, 0, 0, .12);--sh-modal: 0 20px 60px rgba(0, 0, 0, .25);--focus-ring: 0 0 0 3px rgba(102, 126, 234, .12);--font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-brand: "Rubik", var(--font)}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:var(--font);color:var(--text);background:var(--page-bg);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}button{font-family:inherit;cursor:pointer}input,select,textarea{font-family:inherit}.app-root{height:100%;height:100dvh;display:flex;flex-direction:column;background:var(--page-bg);overflow-x:hidden}.center-screen{min-height:100dvh;display:flex;align-items:center;justify-content:center;padding:24px;background:radial-gradient(1200px 600px at 50% -10%,rgba(102,126,234,.12),transparent),var(--page-bg)}.spinner{width:34px;height:34px;border:3px solid rgba(102,126,234,.2);border-top-color:var(--indigo);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.logo-icon{display:inline-flex;align-items:center;justify-content:center;background:var(--brand-gradient);color:#fff;border-radius:var(--r-md);flex:none}.logo-icon svg{width:60%;height:60%}.brand-mark{width:36px;height:36px;border-radius:9px;object-fit:contain;flex:none}.login-logo{width:190px;max-width:72%;height:auto;display:block;margin:6px auto 22px}.welcome-mark{width:76px;height:76px;border-radius:16px;object-fit:contain;display:block;margin:0 auto 16px}.login-card{width:100%;max-width:400px;background:var(--surface);border-radius:18px;box-shadow:var(--sh-pop);padding:40px 34px;text-align:center;animation:rise .35s ease}@keyframes rise{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}.login-card .logo-icon{width:64px;height:64px;margin:0 auto 20px}.login-card h1{font-family:var(--font-brand);font-size:22px;font-weight:700;margin:0 0 6px;color:var(--text-strong)}.login-card p{color:var(--muted);font-size:14px;margin:0 0 26px;line-height:1.5}.btn-primary{display:inline-flex;align-items:center;justify-content:center;gap:8px;width:100%;border:none;background:var(--brand-gradient);color:#fff;font-size:15px;font-weight:600;padding:13px 18px;border-radius:var(--r-sm);transition:transform .15s ease,box-shadow .15s ease,opacity .15s ease;box-shadow:0 4px 14px #667eea59}.btn-primary:hover{transform:translateY(-1px);box-shadow:0 6px 18px #667eea73}.btn-primary:active{transform:translateY(0)}.btn-primary:disabled{opacity:.55;cursor:not-allowed;transform:none}.login-error{margin-top:16px;background:var(--red-bg);color:var(--red);border-radius:var(--r-sm);padding:10px 12px;font-size:13px;text-align:left}.login-footnote{margin-top:22px;font-size:11px;color:var(--muted-3)}.top-nav{height:56px;flex:none;background:var(--surface);border-bottom:1px solid var(--border);box-shadow:var(--sh-nav);display:flex;align-items:center;gap:14px;padding:0 16px;z-index:20}.top-nav .brand{display:flex;align-items:center;gap:10px;min-width:0}.top-nav .brand .logo-icon{width:34px;height:34px}.top-nav .brand .title{font-family:var(--font-brand);font-weight:700;font-size:16px;color:var(--text-strong);white-space:nowrap}.top-nav .nav-center{display:flex;align-items:center;gap:8px;flex:1;min-width:0;justify-content:center;flex-wrap:wrap}.top-nav .nav-right{display:flex;align-items:center;gap:8px}.field{display:flex;flex-direction:column;gap:3px}.field label{font-size:10px;text-transform:uppercase;letter-spacing:.4px;color:var(--muted-3);font-weight:600}select.control,input.control{height:34px;border:1px solid var(--border-2);border-radius:var(--r-sm);background:#fff;padding:0 10px;font-size:13px;color:var(--text);max-width:200px;outline:none;transition:border-color .15s ease,box-shadow .15s ease}select.control:focus,input.control:focus{border-color:var(--indigo);box-shadow:var(--focus-ring)}.icon-btn{width:36px;height:36px;border-radius:50%;border:1px solid var(--border);background:#fff;display:inline-flex;align-items:center;justify-content:center;color:var(--muted);transition:background .15s ease,color .15s ease}.icon-btn:hover{background:var(--input-bar);color:var(--indigo)}.user-chip{display:flex;align-items:center;gap:8px;padding:4px 10px 4px 4px;border-radius:20px;background:var(--input-bar)}.user-chip .avatar{width:28px;height:28px;border-radius:50%;background:var(--brand-gradient);color:#fff;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700}.user-chip .who{font-size:12px;font-weight:600;color:var(--text);max-width:120px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.settings-trigger{display:inline-flex;align-items:center;gap:10px;max-width:60vw;border:1px solid var(--border-2);background:#fff;border-radius:20px;padding:6px 12px;color:var(--text);transition:border-color .15s ease,box-shadow .15s ease}.settings-trigger:hover{border-color:var(--indigo);box-shadow:var(--focus-ring)}.settings-trigger .st-squad{font-size:13px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.settings-trigger .st-dots{font-size:16px;font-weight:700;color:var(--muted-3);letter-spacing:1px;line-height:1}.settings-dialog{background:#fff;border-radius:var(--r-lg);box-shadow:var(--sh-modal);width:100%;max-width:380px;overflow:hidden;animation:rise .2s ease}.settings-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px 12px}.settings-head h2{margin:0;font-family:var(--font-brand);font-size:18px;color:var(--text-strong)}.settings-close{width:30px;height:30px;border-radius:50%;border:none;background:var(--input-bar);color:var(--muted);font-size:14px}.settings-close:hover{background:#e6e9ee}.settings-body{padding:4px 20px 8px;display:flex;flex-direction:column;gap:16px}.settings-field label,.settings-advanced label{display:block;font-size:11px;text-transform:uppercase;letter-spacing:.4px;color:var(--muted);font-weight:600;margin-bottom:6px}.control.block{width:100%;max-width:100%;height:44px;font-size:16px}.settings-advanced{margin-top:4px;padding-top:14px;border-top:1px solid var(--border)}.settings-advanced label{color:var(--muted-3)}.control.subtle{height:38px;font-size:13px;color:var(--muted);background:#fbfbfc}.settings-error{margin-top:6px;font-size:12px;color:var(--red)}.settings-foot{padding:8px 20px 20px}.btn-primary.compact{padding:11px 18px;font-size:14px}.status-bar{flex:none;min-height:38px;background:var(--surface);border-bottom:1px solid var(--border);display:flex;align-items:center;gap:8px;padding:6px 16px;flex-wrap:wrap}.pill{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;padding:4px 10px;border-radius:14px;background:#667eea1a;color:var(--indigo-hover)}.pill.expert{background:#8b5cf624;color:var(--purple)}.pill.var{background:var(--green-bg);color:var(--green-dark)}.pill.muted{background:#f1f5f9;color:var(--muted)}.chat-main{flex:1;min-height:0;position:relative;background-color:var(--chat-canvas);background-image:url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle cx='20' cy='20' r='1.5' fill='%23000000' fill-opacity='0.03'/%3E%3C/svg%3E");display:flex;flex-direction:column}.messages{flex:1;overflow-y:auto;padding:20px;display:flex;flex-direction:column}.messages-inner{width:100%;max-width:900px;margin:0 auto;display:flex;flex-direction:column}.welcome{margin:auto;max-width:460px;background:#fff;border-radius:var(--r-md);box-shadow:var(--sh-card);padding:30px 28px;text-align:center}.welcome .logo-icon{width:56px;height:56px;margin:0 auto 16px}.welcome h2{margin:0 0 8px;font-size:18px;color:var(--text-strong)}.welcome p{margin:0;color:var(--muted);font-size:14px;line-height:1.55}.message{display:flex;gap:10px;margin-bottom:12px;animation:slide .2s ease}.message.user{flex-direction:row-reverse}@keyframes slide{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}.msg-avatar{width:36px;height:36px;border-radius:50%;flex:none;display:flex;align-items:center;justify-content:center;color:#fff}.msg-avatar svg{width:20px;height:20px}.msg-avatar.user{background:var(--brand-gradient)}.msg-avatar.assistant{background:var(--assistant-gradient)}.msg-content{max-width:70%;min-width:120px}.bubble{padding:10px 14px;border-radius:var(--r-md);box-shadow:var(--sh-bubble);position:relative}.bubble.user{background:var(--user-bubble);border-bottom-right-radius:4px}.bubble.assistant{background:var(--assistant-bubble);border-bottom-left-radius:4px}.bubble-header{font-weight:700;color:var(--teal);font-size:13px;padding-bottom:4px;margin-bottom:6px;border-bottom:1px solid rgba(0,0,0,.06)}.bubble-text{font-size:14px;line-height:1.5;color:var(--text-strong);word-wrap:break-word;overflow-wrap:anywhere}.bubble-text strong{font-weight:700}.bubble-footer{font-size:12px;font-style:italic;color:var(--muted-2);padding-top:6px;margin-top:6px;border-top:1px solid rgba(0,0,0,.06)}.bubble-meta{display:flex;align-items:center;gap:6px;justify-content:flex-end;margin-top:4px;font-size:11px;color:var(--muted-3)}.bubble-meta .tag{font-family:SF Mono,Monaco,monospace;background:#0000000d;padding:1px 5px;border-radius:6px}.bubble-meta .tag.expert{color:var(--purple);background:#8b5cf61f}.bubble.error{background:var(--red-bg)}.bubble.error .bubble-text{color:var(--red)}.bubble-image{max-width:260px;max-height:260px;border-radius:var(--r-sm);display:block;margin-bottom:4px}.bubble-video{max-width:260px;border-radius:var(--r-sm);display:block;margin-bottom:4px}.bubble-audio{width:240px;margin-bottom:4px}.bubble-doc{display:flex;align-items:center;gap:10px;padding:8px 10px;background:#0000000a;border-radius:var(--r-sm);margin-bottom:4px;color:var(--text);font-size:13px}.bubble-transcript{font-size:13px;color:var(--muted-2);font-style:italic;border-left:3px solid var(--indigo);padding-left:8px;margin-top:4px}.options{margin-top:8px;display:flex;flex-direction:column;gap:6px}.reply-buttons{display:flex;flex-wrap:wrap;gap:6px}.reply-button{border:1px solid var(--indigo);color:var(--indigo);background:#fff;border-radius:16px;padding:6px 14px;font-size:13px;font-weight:600;transition:background .15s ease,color .15s ease}.reply-button:hover{background:var(--indigo);color:#fff}.list-button{display:flex;align-items:center;justify-content:space-between;gap:10px;width:100%;text-align:left;border:1px solid var(--border-2);background:#fff;border-radius:var(--r-sm);padding:10px 12px;transition:border-color .15s ease,background .15s ease}.list-button:hover{border-color:var(--indigo);background:#667eea0a}.list-button .lb-title{font-size:13px;font-weight:600;color:var(--text-strong)}.list-button .lb-desc{font-size:12px;color:var(--muted);margin-top:2px}.list-button svg{color:var(--muted-3);flex:none}.notice{max-width:70%;align-self:center;background:#fff;border-radius:10px;padding:6px 12px;font-size:12px;color:var(--muted);box-shadow:var(--sh-bubble);margin:4px auto 12px;text-align:center}.notice.expert{border-left:3px solid var(--purple);color:var(--purple)}.notice.vars{border-left:3px solid var(--green)}.var-chip{display:inline-block;background:var(--green-bg);color:var(--green-dark);border-radius:10px;padding:1px 8px;font-size:11px;font-weight:600;margin:2px 3px 0}.typing{display:flex;gap:4px;padding:6px 2px}.typing span{width:8px;height:8px;border-radius:50%;background:var(--muted-3);animation:bounce 1.4s infinite}.typing span:nth-child(2){animation-delay:.2s}.typing span:nth-child(3){animation-delay:.4s}@keyframes bounce{0%,60%,to{transform:translateY(0);opacity:.5}30%{transform:translateY(-6px);opacity:1}}.composer{flex:none;background:var(--input-bar);border-top:1px solid var(--border-3);padding:12px 16px calc(16px + env(safe-area-inset-bottom))}.composer-inner{max-width:900px;margin:0 auto}.attach-preview{display:flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--border-3);border-radius:var(--r-md);padding:8px 10px;margin-bottom:8px;position:relative}.attach-preview img,.attach-preview video{width:44px;height:44px;object-fit:cover;border-radius:var(--r-sm)}.attach-preview .ap-meta{font-size:13px;color:var(--text);min-width:0}.attach-preview .ap-meta .name{font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:220px}.attach-preview .ap-meta .sub{font-size:11px;color:var(--muted)}.attach-remove{margin-left:auto;width:24px;height:24px;border-radius:50%;border:none;background:var(--red);color:#fff;font-size:14px;line-height:1;display:flex;align-items:center;justify-content:center}.input-row{display:flex;align-items:flex-end;gap:8px;position:relative}.round-btn{width:44px;height:44px;flex:none;border-radius:50%;border:none;background:#fff;color:var(--indigo);display:flex;align-items:center;justify-content:center;transition:background .15s ease,transform .15s ease}.round-btn:hover{background:#eef1ff}.round-btn.rec{background:var(--red);color:#fff}.chat-textarea{flex:1;min-height:46px;max-height:120px;resize:none;border:1px solid var(--border-3);border-radius:24px;padding:12px 16px;font-size:14px;line-height:1.4;color:var(--text-strong);outline:none;background:#fff;transition:border-color .15s ease,box-shadow .15s ease}.chat-textarea:focus{border-color:var(--indigo);box-shadow:var(--focus-ring)}.send-btn{width:46px;height:46px;flex:none;border-radius:50%;border:none;background:var(--brand-gradient);color:#fff;display:flex;align-items:center;justify-content:center;transition:transform .15s ease,opacity .15s ease}.send-btn:hover{transform:scale(1.05)}.send-btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.attach-menu{position:absolute;bottom:54px;left:0;background:#fff;border-radius:var(--r-md);box-shadow:var(--sh-pop);padding:6px;z-index:30;min-width:180px;animation:rise .15s ease}.attach-menu button{display:flex;align-items:center;gap:10px;width:100%;border:none;background:transparent;padding:9px 10px;border-radius:var(--r-sm);font-size:13px;color:var(--text);text-align:left}.attach-menu button:hover{background:var(--input-bar)}.attach-menu .mi-icon{width:30px;height:30px;border-radius:8px;display:flex;align-items:center;justify-content:center;color:#fff;flex:none}.quick-actions{display:flex;gap:8px;margin-top:10px;flex-wrap:wrap;justify-content:center}.quick-actions button{border:1px solid var(--border-2);background:#fff;color:var(--muted);font-size:12px;font-weight:600;padding:5px 12px;border-radius:14px;transition:border-color .15s ease,color .15s ease}.quick-actions button:hover{border-color:var(--indigo);color:var(--indigo)}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0f172a8c;display:flex;align-items:center;justify-content:center;z-index:100;padding:24px}.audio-modal{background:#fff;border-radius:var(--r-lg);box-shadow:var(--sh-modal);padding:32px;text-align:center;width:100%;max-width:320px}.rec-pulse{width:72px;height:72px;border-radius:50%;background:var(--red);color:#fff;display:flex;align-items:center;justify-content:center;margin:0 auto 16px;animation:pulse 1.2s infinite}@keyframes pulse{0%{box-shadow:0 0 #dc262673}70%{box-shadow:0 0 0 18px #dc262600}to{box-shadow:0 0 #dc262600}}.rec-timer{font-family:SF Mono,Monaco,monospace;font-size:26px;font-weight:700;color:var(--text-strong);margin-bottom:20px}.rec-actions{display:flex;gap:10px}.rec-actions button{flex:1;border-radius:var(--r-sm);padding:11px;font-size:14px;font-weight:600;border:none}.rec-cancel{background:var(--input-bar);color:var(--muted)}.rec-stop{background:var(--brand-gradient);color:#fff}.toast{position:fixed;left:50%;bottom:96px;transform:translate(-50%);z-index:200;padding:10px 18px;border-radius:var(--r-sm);font-size:13px;font-weight:600;box-shadow:var(--sh-pop);animation:rise .2s ease}.toast.error{background:var(--red-bg);color:var(--red)}.toast.success{background:var(--green-bg);color:var(--green-dark)}.status-bar{overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none}.status-bar::-webkit-scrollbar{display:none}.status-bar .pill{flex:none}@media (max-width: 720px){.top-nav{flex-wrap:wrap;height:auto;padding:8px 12px;gap:8px}.top-nav{flex-wrap:nowrap}.top-nav .nav-center{justify-content:center;min-width:0}.settings-trigger{max-width:46vw}.top-nav .brand .title{font-size:15px}select.control,input.control{max-width:100%;width:100%;min-width:0;font-size:16px;height:40px}.field{flex:1 1 42%;min-width:0}.msg-content{max-width:82%}.messages{padding:14px 12px}.user-chip .who{display:none}.chat-textarea{font-size:16px}.composer{padding:10px 10px calc(10px + env(safe-area-inset-bottom))}}@media (max-width: 480px){.top-nav .brand .title{display:none}.settings-trigger{max-width:52vw}.msg-content{max-width:86%;min-width:0}.notice{max-width:92%}.msg-avatar{width:30px;height:30px}.msg-avatar svg{width:16px;height:16px}.message{gap:8px}.round-btn{width:40px;height:40px}.send-btn{width:42px;height:42px}.input-row{gap:6px}.chat-textarea{min-height:42px;padding:10px 14px}.welcome{padding:24px 20px}.quick-actions{margin-top:8px}.bubble-image,.bubble-video{max-width:220px}}@media (max-width: 360px){.input-row>.round-btn[aria-label="Record voice note"]{display:none}}