:root{--bg: #0a0a12;--bg-soft: #12121c;--bubble: #1a1a26;--text: #ececf2;--text-dim: #8a8a99;--accent: #a855f7;--accent-deep: #7c3aed;--danger: #f43f5e}*{box-sizing:border-box}html,body{margin:0;padding:0;height:100%;overscroll-behavior:none}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent;-webkit-text-size-adjust:100%}#root{height:100%}button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit;padding:0}input,textarea{font-family:inherit;font-size:16px}.accent{color:var(--accent)}.screen{position:relative;height:100vh;height:100dvh;height:var(--app-height, 100dvh);display:flex;flex-direction:column;overflow:hidden;background:radial-gradient(ellipse 80% 42% at 50% -8%,rgba(124,58,237,.28),transparent 70%),var(--bg)}.landing{align-items:center;justify-content:center;padding:24px 20px calc(24px + env(safe-area-inset-bottom))}.landing-inner{width:100%;max-width:420px;display:flex;flex-direction:column;align-items:center;text-align:center;gap:18px}.landing-heart{position:relative;filter:drop-shadow(0 0 22px rgba(168,85,247,.85)) drop-shadow(0 0 60px rgba(124,58,237,.5));animation:heart-pulse 2.6s ease-in-out infinite}.landing-sparkle{position:absolute;color:#c084fc;font-size:14px;text-shadow:0 0 8px rgba(192,132,252,.9)}.landing-sparkle-1{top:-4px;left:-14px}.landing-sparkle-2{bottom:4px;right:-12px;font-size:10px}@keyframes heart-pulse{0%,to{transform:scale(1)}50%{transform:scale(1.05)}}.landing-title{margin:0;font-size:30px;font-weight:800;letter-spacing:-.02em}.landing-subtitle{margin:0;font-size:16px;line-height:1.55;color:var(--text);opacity:.92;max-width:340px}.btn-primary{width:100%;max-width:320px;padding:15px 24px;border-radius:16px;font-size:17px;font-weight:700;color:#fff;background:linear-gradient(135deg,var(--accent-deep),var(--accent));box-shadow:0 8px 28px #7c3aed73,inset 0 1px #ffffff2e;transition:transform .12s ease,box-shadow .12s ease,opacity .12s ease}.btn-primary:active{transform:scale(.97)}.btn-primary:disabled{opacity:.55;cursor:default}.btn-link{font-size:15px;color:var(--text-dim);text-decoration:underline;text-underline-offset:3px;padding:8px}.btn-link:active{color:var(--accent)}.inline-error{width:100%;max-width:320px;padding:10px 14px;border-radius:12px;background:#f43f5e1f;border:1px solid rgba(244,63,94,.4);color:#fda4af;font-size:14px;text-align:center}.cred-card{width:100%;display:flex;flex-direction:column;gap:14px;padding:24px 20px;border-radius:22px;background:var(--bg-soft);border:1px solid rgba(168,85,247,.22);box-shadow:0 18px 60px #0000008c;text-align:left}.cred-title{margin:0 0 4px;font-size:22px;font-weight:800;text-align:center}.cred-row{display:flex;align-items:center;gap:10px;padding:12px 14px;border-radius:14px;background:var(--bubble);border:1px solid rgba(255,255,255,.06)}.cred-text{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}.cred-label{font-size:12px;color:var(--text-dim)}.cred-value{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:16px;word-break:break-all;color:var(--text)}.btn-copy{flex:0 0 auto;padding:8px 12px;border-radius:10px;font-size:13px;font-weight:600;color:var(--accent);background:#a855f724;border:1px solid rgba(168,85,247,.35);white-space:nowrap}.btn-copy:active{background:#a855f747}.cred-warning{padding:10px 14px;border-radius:12px;background:#a855f71a;border:1px dashed rgba(168,85,247,.45);color:#d8b4fe;font-size:14px;line-height:1.4}.login-form .field-label{font-size:13px;color:var(--text-dim);margin-bottom:-8px}.field-input{width:100%;padding:13px 14px;border-radius:14px;background:var(--bubble);border:1px solid rgba(255,255,255,.08);color:var(--text);font-size:16px;outline:none;transition:border-color .15s ease}.field-input:focus{border-color:var(--accent)}.field-input::placeholder{color:var(--text-dim);opacity:.7}.chat-header{flex:0 0 auto;display:flex;align-items:center;gap:12px;padding:10px 14px;padding-top:calc(10px + env(safe-area-inset-top));background:#12121cd9;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid rgba(255,255,255,.06);z-index:5}.ai-avatar{flex:0 0 auto;width:38px;height:38px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:800;color:#fff;background:linear-gradient(var(--bg-soft),var(--bg-soft)) padding-box,linear-gradient(135deg,var(--accent),var(--accent-deep)) border-box;border:2px solid transparent;box-shadow:0 0 14px #a855f78c}.chat-header-info{flex:1;min-width:0}.chat-header-title{font-size:16px;font-weight:700}.chat-header-status{display:flex;align-items:center;gap:5px;font-size:12px;color:var(--text-dim)}.online-dot{width:7px;height:7px;border-radius:50%;background:#22c55e;box-shadow:0 0 6px #22c55ee6}.btn-icon{flex:0 0 auto;width:38px;height:38px;border-radius:12px;display:flex;align-items:center;justify-content:center;color:var(--text-dim)}.btn-icon:active{color:var(--accent);background:#a855f71f}.chat-list-wrap{position:relative;flex:1;min-height:0;display:flex}.chat-list{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch;overscroll-behavior:contain;padding:16px 12px 12px;display:flex;flex-direction:column;gap:10px}.chat-loading{text-align:center;color:var(--text-dim);font-size:14px;padding:24px 0}.msg-row{display:flex;width:100%}.msg-row-user{justify-content:flex-end}.msg-row-assistant{justify-content:flex-start;gap:10px}.msg-row-assistant .ai-avatar{width:34px;height:34px;font-size:12px;margin-top:2px}.msg-col{display:flex;flex-direction:column;gap:8px;max-width:calc(100% - 50px);min-width:0}.bubble{position:relative;border-radius:18px;padding:11px 14px;font-size:16px;line-height:1.45;max-width:100%;width:fit-content}.bubble-text{white-space:pre-wrap;word-break:break-word}.bubble-assistant{background:var(--bubble);color:var(--text);border-bottom-left-radius:8px;border:1px solid rgba(255,255,255,.04)}.bubble-user{background:linear-gradient(135deg,#7c3aed,#a855f7);color:#fff;border-bottom-right-radius:8px;max-width:82%;box-shadow:0 4px 18px #7c3aed59}.bubble-time{float:right;margin:8px 0 0 10px;font-size:11px;color:var(--text-dim);-webkit-user-select:none;user-select:none}.bubble-user .bubble-time{color:#ffffffa6}.bubble-failed{color:var(--text-dim);font-style:italic}.btn-retry{align-self:flex-start;padding:8px 14px;border-radius:12px;font-size:14px;font-weight:600;color:var(--accent);background:#a855f71f;border:1px solid rgba(168,85,247,.4)}.btn-retry:active{background:#a855f742}.cursor{display:inline-block;color:var(--accent);animation:cursor-blink .9s steps(2,start) infinite;margin-left:1px}@keyframes cursor-blink{0%,to{opacity:1}50%{opacity:0}}.typing{display:flex;align-items:center;gap:5px;padding:15px 16px}.typing-dot{width:7px;height:7px;border-radius:50%;background:var(--text-dim);animation:typing-bounce 1.2s ease-in-out infinite}.typing-dot:nth-child(2){animation-delay:.15s}.typing-dot:nth-child(3){animation-delay:.3s}@keyframes typing-bounce{0%,60%,to{transform:translateY(0);opacity:.45}30%{transform:translateY(-5px);opacity:1;background:var(--accent)}}.scroll-fab{position:absolute;right:14px;bottom:14px;width:42px;height:42px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--text);background:#1a1a26eb;border:1px solid rgba(168,85,247,.4);box-shadow:0 6px 20px #00000080;z-index:4}.scroll-fab:active{background:#a855f740}.error-banner{flex:0 0 auto;display:flex;align-items:center;gap:10px;margin:0 12px 8px;padding:10px 12px;border-radius:14px;background:#f43f5e1f;border:1px solid rgba(244,63,94,.4);color:#fda4af;font-size:14px}.error-banner-text{flex:1;min-width:0}.btn-banner{flex:0 0 auto;padding:6px 10px;border-radius:10px;font-size:13px;font-weight:600;color:#fff;background:#f43f5e59}.btn-banner-close{background:transparent;color:#fda4af;padding:6px 8px}.composer{flex:0 0 auto;display:flex;align-items:flex-end;gap:10px;padding:8px 12px calc(8px + env(safe-area-inset-bottom));background:#12121cd9;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-top:1px solid rgba(255,255,255,.06)}.composer-input{flex:1;min-width:0;resize:none;border:1px solid rgba(255,255,255,.08);border-radius:22px;background:var(--bubble);color:var(--text);font-size:16px;line-height:1.4;padding:12px 16px;max-height:132px;outline:none;transition:border-color .15s ease}.composer-input:focus{border-color:var(--accent)}.composer-input:disabled{opacity:.55}.composer-input::placeholder{color:var(--text-dim)}.composer-btn{flex:0 0 auto;width:46px;height:46px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;transition:transform .12s ease,opacity .12s ease}.composer-btn:active{transform:scale(.92)}.composer-btn-send{background:linear-gradient(135deg,var(--accent-deep),var(--accent));box-shadow:0 4px 16px #7c3aed73}.composer-btn-send:disabled{opacity:.45;cursor:default}.composer-btn-stop{background:var(--bubble);border:1px solid rgba(244,63,94,.55)}.stop-square{width:14px;height:14px;border-radius:3px;background:var(--danger)}@media (min-width: 700px){.chat-header,.chat-list,.error-banner,.composer{max-width:760px;width:100%;margin-left:auto;margin-right:auto}.error-banner{width:calc(100% - 24px)}}