*{margin:0;padding:0;box-sizing:border-box}:root{--bg-primary: #0f0f0f;--bg-secondary: #1a1a1a;--bg-tertiary: #2d2d2d;--text-primary: #ffffff;--text-secondary: #b3b3b3;--text-muted: #666666;--accent-primary: #3b82f6;--accent-hover: #2563eb;--success: #10b981;--danger: #ef4444;--border: #404040;--shadow: rgba(0, 0, 0, .3)}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:var(--bg-primary);color:var(--text-primary);line-height:1.6;min-height:100vh;font-size:1rem}@media (min-width: 1024px){body{font-size:1.125rem}}#root{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:clamp(.5rem,2vw,1.5rem)}@media (max-width: 640px){#root{padding:0;align-items:stretch;padding-top:env(safe-area-inset-top);padding-bottom:env(safe-area-inset-bottom)}}.app{width:90vw;max-width:640px;margin-inline:auto}@media (max-width: 640px){.app{width:100vw;height:100vh;display:flex;flex-direction:column}}@media (min-width: 1024px){.app{max-width:800px}}.chat-container{background:var(--bg-secondary);border-radius:12px;border:1px solid var(--border);box-shadow:0 8px 32px var(--shadow);overflow:hidden;min-height:85vh;display:flex;flex-direction:column}@media (max-width: 640px){.chat-container{min-height:100vh;height:100vh;border-radius:0;border:none;box-shadow:none;min-height:calc(100vh - env(safe-area-inset-top) - env(safe-area-inset-bottom));height:calc(100vh - env(safe-area-inset-top) - env(safe-area-inset-bottom))}}@media (min-width: 640px){.chat-container{min-height:600px}}.chat-header{background:var(--bg-tertiary);padding:clamp(1rem,3vw,1.5rem);border-bottom:1px solid var(--border);text-align:center}.chat-title{font-size:clamp(1.25rem,4vw + .5rem,1.75rem);font-weight:700;color:var(--text-primary);margin-bottom:.5rem}.chat-subtitle{color:var(--text-secondary);font-size:clamp(.8rem,2vw + .2rem,.9rem)}.chat-messages{flex:1 1 auto;padding:clamp(1rem,3vw,1.5rem);overflow-y:auto;display:flex;flex-direction:column;gap:.75rem}.message{max-width:85%;padding:.875rem 1.125rem;border-radius:18px;word-wrap:break-word;animation:slideIn .3s ease-out;font-size:1rem;line-height:1.5}@media (min-width: 640px){.message{max-width:80%;padding:1rem 1.25rem}}@keyframes slideIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.message.user{background:var(--accent-primary);color:#fff;align-self:flex-end;margin-left:auto}.message.bot{background:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--border);align-self:flex-start}.message.system{background:var(--bg-tertiary);color:var(--text-secondary);align-self:center;font-style:italic;font-size:clamp(.8rem,2vw + .2rem,.9rem);border:1px solid var(--border);text-align:center;margin:0 auto;max-width:90%}@media (min-width: 640px){.message.system{max-width:70%}}.typing-indicator{background:var(--bg-tertiary);border:1px solid var(--border);align-self:flex-start;max-width:80px;padding:1rem 1.25rem;border-radius:18px;display:flex;gap:4px;align-items:center}.typing-dot{width:8px;height:8px;border-radius:50%;background:var(--text-muted);animation:typing 1.4s infinite ease-in-out}.typing-dot:nth-child(1){animation-delay:-.32s}.typing-dot:nth-child(2){animation-delay:-.16s}@keyframes typing{0%,80%,to{opacity:.3;transform:scale(.8)}40%{opacity:1;transform:scale(1)}}.chat-input-container{padding:clamp(1rem,3vw,1.5rem);border-top:1px solid var(--border);background:var(--bg-secondary)}@media (max-width: 640px){.chat-input-container{padding-bottom:calc(clamp(1rem,3vw,1.5rem) + env(safe-area-inset-bottom))}}.chat-input-form{display:flex;gap:.75rem;align-items:flex-end}@media (max-width: 479px){.chat-input-form{flex-direction:column;gap:.75rem;align-items:stretch}}.chat-input{flex:1;background:var(--bg-tertiary);border:1px solid var(--border);border-radius:24px;padding:.75rem 1.25rem;color:var(--text-primary);font-size:1rem;resize:none;min-height:44px;max-height:35vh;transition:border-color .2s ease,box-shadow .2s ease;outline:none;font-family:inherit;line-height:1.4;overflow-y:auto}.chat-input:focus{border-color:var(--accent-primary);box-shadow:0 0 0 3px #3b82f61a}.chat-input:focus-visible{outline:2px solid var(--accent-primary);outline-offset:2px}.chat-input::placeholder{color:var(--text-muted)}.send-button{background:var(--accent-primary);color:#fff;border:none;border-radius:50%;width:48px;height:48px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s ease;font-size:1.1rem;flex-shrink:0;touch-action:manipulation;min-width:44px;min-height:44px}.send-button:hover:not(:disabled){background:var(--accent-hover);transform:translateY(-1px);box-shadow:0 4px 12px #3b82f64d}.send-button:active:not(:disabled){transform:scale(.96)}.send-button:disabled{background:var(--text-muted);cursor:not-allowed;transform:none;box-shadow:none}.send-button:focus-visible{outline:2px solid var(--accent-primary);outline-offset:2px}@media (max-width: 479px){.send-button{width:100%;border-radius:24px;min-height:44px;font-size:1rem}}.error-message{background:var(--danger);color:#fff;padding:1rem 1.25rem;border-radius:8px;margin:1rem 1.5rem;text-align:center;font-size:.9rem}.connection-status{position:fixed;top:clamp(.5rem,2vw,1rem);right:clamp(.5rem,2vw,1rem);background:var(--bg-tertiary);border:1px solid var(--border);border-radius:8px;padding:.5rem .75rem;font-size:clamp(.75rem,2vw + .1rem,.8rem);display:flex;align-items:center;gap:.5rem;z-index:1000}.status-indicator{width:8px;height:8px;border-radius:50%;background:var(--success)}.status-indicator.disconnected{background:var(--danger)}@media (min-width: 640px){.chat-container{border-radius:16px}.chat-header,.chat-messages,.chat-input-container{padding:1.5rem 2rem}}@media (min-width: 1024px){.chat-container{border-radius:20px}.chat-header,.chat-messages,.chat-input-container{padding:2rem}}.chat-messages::-webkit-scrollbar{width:6px}.chat-messages::-webkit-scrollbar-track{background:var(--bg-secondary)}.chat-messages::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}.chat-messages::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.chat-input::-webkit-scrollbar{width:0px;background:transparent}.chat-input{scrollbar-width:none;-ms-overflow-style:none}