:root{--primary: #667eea;--primary-light: #7c8ff0;--primary-dark: #5568d3;--secondary: #764ba2;--bg-dark: #0a0a0f;--bg-card: #16161f;--bg-elevated: #1e1e2e;--text-primary: #ffffff;--text-secondary: #9ca3af;--text-tertiary: #6b7280;--error: #ef4444;--success: #10b981;--border: rgba(255, 255, 255, .1);--shadow-sm: 0 2px 8px rgba(0, 0, 0, .3);--shadow-md: 0 4px 16px rgba(0, 0, 0, .4);--shadow-lg: 0 8px 32px rgba(0, 0, 0, .5)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background:var(--bg-dark);color:var(--text-primary);line-height:1.6;-webkit-font-smoothing:antialiased;height:100vh;overflow:hidden}.app{display:flex;flex-direction:column;height:100vh;overflow:hidden}.header{background:var(--bg-card);border-bottom:1px solid var(--border);padding:1rem 2rem;position:sticky;top:0;z-index:100;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.header-content{max-width:1200px;margin:0 auto;display:flex;align-items:center;justify-content:space-between}.header h1{font-size:1.5rem;font-weight:600;background:linear-gradient(135deg,var(--primary),var(--secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.status-indicator{background:transparent;border:none;cursor:pointer;padding:.5rem;border-radius:50%;transition:background .2s}.status-indicator:hover{background:#ffffff0d}.status-dot{width:10px;height:10px;border-radius:50%;background:var(--text-tertiary);transition:all .3s}.status-dot.active{background:var(--success);box-shadow:0 0 10px var(--success);animation:pulse 2s infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.main-content{flex:1;display:flex;flex-direction:column;max-width:1200px;width:100%;margin:0 auto;padding:2rem;gap:2rem;overflow-y:auto;min-height:0}.voice-control{background:linear-gradient(135deg,var(--primary),var(--secondary));border-radius:24px;padding:2rem;box-shadow:var(--shadow-lg);text-align:center}.voice-button{width:80px;height:80px;border-radius:50%;border:none;background:#fff3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);cursor:pointer;display:flex;align-items:center;justify-content:center;margin:0 auto 1rem;transition:all .3s;font-size:2rem}.voice-button:hover{background:#ffffff4d;transform:scale(1.05)}.voice-button:active{transform:scale(.95)}.voice-button.listening{background:#ef44444d;animation:voicePulse 1.5s infinite}@keyframes voicePulse{0%,to{box-shadow:0 0 #ef4444b3}50%{box-shadow:0 0 0 20px #ef444400}}.voice-status{font-size:1rem;font-weight:500;color:#ffffffe6;margin-bottom:.5rem}.voice-hint{font-size:.875rem;color:#ffffffb3}.chat-container{flex:1;background:var(--bg-card);border-radius:16px;padding:2rem;box-shadow:var(--shadow-md);display:flex;flex-direction:column;gap:1.5rem;max-height:600px;overflow-y:auto}.chat-container::-webkit-scrollbar{width:8px}.chat-container::-webkit-scrollbar-track{background:transparent}.chat-container::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}.chat-container::-webkit-scrollbar-thumb:hover{background:#fff3}.message{display:flex;gap:1rem;animation:messageSlideIn .3s ease-out}@keyframes messageSlideIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.message.user{flex-direction:row-reverse}.message-avatar{width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.25rem;flex-shrink:0}.message.user .message-avatar{background:linear-gradient(135deg,var(--primary),var(--secondary))}.message.assistant .message-avatar{background:var(--bg-elevated)}.message-content{flex:1;background:var(--bg-elevated);padding:1rem 1.5rem;border-radius:16px;max-width:70%}.message.user .message-content{background:linear-gradient(135deg,var(--primary),var(--secondary));border-top-right-radius:4px}.message.assistant .message-content{border-top-left-radius:4px}.message-text{font-size:.95rem;line-height:1.6;color:var(--text-primary)}.message-text h1,.message-text h2,.message-text h3{margin-top:1rem;margin-bottom:.5rem;font-weight:600}.message-text h1{font-size:1.5rem}.message-text h2{font-size:1.25rem}.message-text h3{font-size:1.1rem}.message-text p{margin-bottom:.75rem}.message-text ul,.message-text ol{margin-left:1.5rem;margin-bottom:.75rem}.message-text li{margin-bottom:.25rem}.message-text code{background:#0000004d;padding:.2rem .4rem;border-radius:4px;font-family:SF Mono,Monaco,Cascadia Code,Roboto Mono,Consolas,monospace;font-size:.9em}.message-text pre{background:#0000004d;padding:1rem;border-radius:8px;overflow-x:auto;margin-bottom:.75rem}.message-text pre code{background:transparent;padding:0}.message-text blockquote{border-left:3px solid var(--primary);padding-left:1rem;margin:.75rem 0;color:var(--text-secondary)}.message-text a{color:var(--primary-light);text-decoration:none;border-bottom:1px solid transparent;transition:border-color .2s}.message-text a:hover{border-bottom-color:var(--primary-light)}.input-container{background:var(--bg-card);border-radius:16px;padding:1.5rem;box-shadow:var(--shadow-md)}.input-wrapper{display:flex;gap:1rem;align-items:flex-end}.input-box{flex:1;background:var(--bg-elevated);border:1px solid var(--border);border-radius:12px;padding:1rem 1.5rem;color:var(--text-primary);font-size:1rem;font-family:inherit;resize:vertical;min-height:50px;max-height:150px;transition:border-color .2s}.input-box:focus{outline:none;border-color:var(--primary)}.input-box::placeholder{color:var(--text-tertiary)}.send-button{background:linear-gradient(135deg,var(--primary),var(--secondary));border:none;border-radius:12px;padding:1rem 2rem;color:#fff;font-size:1rem;font-weight:500;cursor:pointer;transition:all .2s;display:flex;align-items:center;gap:.5rem}.send-button:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}.send-button:active{transform:translateY(0)}.send-button:disabled{opacity:.5;cursor:not-allowed}.empty-state{text-align:center;padding:3rem 2rem;color:var(--text-secondary)}.empty-state-icon{font-size:4rem;margin-bottom:1rem;opacity:.5}.empty-state h2{font-size:1.5rem;font-weight:600;margin-bottom:.5rem;color:var(--text-primary)}.empty-state p{font-size:1rem;color:var(--text-tertiary)}.loading{display:flex;gap:.5rem;padding:1rem}.loading-dot{width:8px;height:8px;border-radius:50%;background:var(--text-secondary);animation:loadingBounce 1.4s infinite ease-in-out both}.loading-dot:nth-child(1){animation-delay:-.32s}.loading-dot:nth-child(2){animation-delay:-.16s}@keyframes loadingBounce{0%,80%,to{transform:scale(0)}40%{transform:scale(1)}}@media(max-width:768px){.main-content,.header{padding:1rem}.voice-control{padding:1.5rem}.voice-button{width:60px;height:60px;font-size:1.5rem}.chat-container{padding:1rem;max-height:400px}.message-content{max-width:85%}.input-wrapper{flex-direction:column}.send-button{width:100%;justify-content:center}}.error-message{background:#ef44441a;border:1px solid var(--error);color:var(--error);padding:1rem;border-radius:8px;margin-bottom:1rem;display:flex;align-items:center;gap:.5rem}.success-message{background:#10b9811a;border:1px solid var(--success);color:var(--success);padding:1rem;border-radius:8px;margin-bottom:1rem;display:flex;align-items:center;gap:.5rem}