:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media (prefers-color-scheme: light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}:root{--bg-primary: #000000;--bg-secondary: #0a0a0a;--bg-tertiary: #111111;--bg-glass: rgba(255, 255, 255, .02);--bg-glass-hover: rgba(255, 255, 255, .05);--text-primary: #ffffff;--text-secondary: #a0a0a0;--text-muted: #666666;--accent-primary: #00d4ff;--accent-secondary: #7c3aed;--accent-success: #00ff88;--accent-warning: #ffaa00;--accent-danger: #ff4444;--gradient-primary: linear-gradient(135deg, #00d4ff 0%, #7c3aed 100%);--gradient-secondary: linear-gradient(135deg, #ff6b6b 0%, #4ecdc4 100%);--gradient-success: linear-gradient(135deg, #00ff88 0%, #00d4ff 100%);--gradient-glass: linear-gradient(135deg, rgba(255,255,255,.1) 0%, rgba(255,255,255,.05) 100%);--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);--shadow-glow: 0 0 20px rgba(0, 212, 255, .3);--border-primary: rgba(255, 255, 255, .1);--border-secondary: rgba(255, 255, 255, .05);--space-xs: 4px;--space-sm: 8px;--space-md: 16px;--space-lg: 24px;--space-xl: 32px;--space-2xl: 48px;--radius-sm: 6px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 24px;--radius-full: 50%;--transition-fast: .15s ease;--transition-normal: .3s ease;--transition-slow: .5s ease}*{margin:0;padding:0;box-sizing:border-box}html,body{height:100%;overflow:hidden;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg-primary);color:var(--text-primary);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.app-container{display:flex;height:100vh;width:100vw;background:var(--bg-primary);position:relative;overflow:hidden}.sidebar{width:320px;min-width:280px;max-width:400px;height:100vh;background:var(--bg-secondary);border-right:1px solid var(--border-primary);display:flex;flex-direction:column;position:relative;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);transition:all var(--transition-normal)}.sidebar-content{flex:1;padding:var(--space-lg);display:flex;flex-direction:column;gap:var(--space-lg);overflow:hidden}.sidebar-header{text-align:center;margin-bottom:var(--space-lg)}.sidebar-header h1{font-size:1.5rem;font-weight:700;background:var(--gradient-primary);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:var(--space-sm)}.upload-section{background:var(--bg-glass);border:1px solid var(--border-secondary);border-radius:var(--radius-lg);padding:var(--space-md);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.upload-options{display:flex;gap:var(--space-sm);margin-bottom:var(--space-md);background:var(--bg-tertiary);border-radius:var(--radius-md);padding:var(--space-xs)}.upload-option{flex:1;padding:var(--space-sm) var(--space-md);border:none;border-radius:var(--radius-sm);background:transparent;color:var(--text-secondary);font-size:.9rem;font-weight:500;cursor:pointer;transition:all var(--transition-fast);position:relative}.upload-option.active{background:var(--gradient-primary);color:var(--text-primary);box-shadow:var(--shadow-sm)}.upload-option:hover:not(.active){background:var(--bg-glass-hover);color:var(--text-primary)}.upload-button{width:100%;padding:var(--space-md);border:none;border-radius:var(--radius-md);background:var(--gradient-primary);color:var(--text-primary);font-size:1rem;font-weight:600;cursor:pointer;transition:all var(--transition-normal);box-shadow:var(--shadow-sm);position:relative;overflow:hidden}.upload-button:hover:not(:disabled){transform:translateY(-2px);box-shadow:var(--shadow-md)}.upload-button:disabled{opacity:.6;cursor:not-allowed;transform:none}.url-input-section{display:flex;flex-direction:column;gap:var(--space-md)}.url-help-text{text-align:center;margin-bottom:var(--space-sm)}.url-help-text small{color:var(--text-muted);font-size:.8rem;font-weight:500}.url-input,.title-input{width:100%;padding:var(--space-md);border:1px solid var(--border-secondary);border-radius:var(--radius-md);background:var(--bg-tertiary);color:var(--text-primary);font-size:.95rem;transition:all var(--transition-normal);outline:none}.url-input:focus,.title-input:focus{border-color:var(--accent-primary);background:var(--bg-glass-hover);box-shadow:0 0 0 2px #00d4ff33}.url-input::placeholder,.title-input::placeholder{color:var(--text-muted)}.url-submit-button{width:100%;padding:var(--space-md);border:none;border-radius:var(--radius-md);background:var(--gradient-success);color:var(--text-primary);font-size:1rem;font-weight:600;cursor:pointer;transition:all var(--transition-normal);box-shadow:var(--shadow-sm)}.url-submit-button:hover:not(:disabled){transform:translateY(-2px);box-shadow:var(--shadow-md)}.url-submit-button:disabled{opacity:.5;cursor:not-allowed;transform:none}.chat-instances{flex:1;display:flex;flex-direction:column;overflow:hidden}.instances-title{font-size:.9rem;font-weight:600;color:var(--text-secondary);margin-bottom:var(--space-md);text-transform:uppercase;letter-spacing:.5px}.session-list{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:var(--space-sm);scroll-behavior:smooth}.session-item{display:flex;align-items:center;justify-content:space-between;padding:var(--space-md);border-radius:var(--radius-md);background:var(--bg-glass);border:1px solid var(--border-secondary);cursor:pointer;transition:all var(--transition-normal);position:relative;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.session-item:hover{background:var(--bg-glass-hover);border-color:var(--accent-primary);transform:translate(4px);box-shadow:var(--shadow-sm)}.session-item.active{background:var(--gradient-primary);border-color:transparent;transform:scale(1.02);box-shadow:var(--shadow-md)}.session-info{flex:1;min-width:0}.session-name{font-weight:600;font-size:.95rem;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:var(--space-xs)}.session-item.active .session-name{color:var(--text-primary)}.session-meta{font-size:.75rem;color:var(--text-muted)}.session-item.active .session-meta{color:#fffc}.session-actions{display:flex;gap:var(--space-xs);opacity:0;transition:opacity var(--transition-fast)}.session-item:hover .session-actions{opacity:1}.session-action-btn{background:none;border:none;color:var(--text-secondary);cursor:pointer;padding:var(--space-xs);border-radius:var(--radius-sm);font-size:.9rem;transition:all var(--transition-fast)}.session-action-btn:hover{background:var(--bg-glass-hover);color:var(--text-primary);transform:scale(1.1)}.session-action-btn.danger:hover{background:var(--accent-danger);color:var(--text-primary)}.chat-window{flex:1;display:flex;flex-direction:column;background:var(--bg-primary);position:relative;overflow:hidden}.chat-box{display:flex;flex-direction:column;height:100%}.chat-header{width:100%;display:flex;justify-content:space-between;align-items:center;padding:var(--space-md) var(--space-lg);border-bottom:1px solid var(--border-primary);background:var(--bg-secondary);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.session-title{font-weight:600;font-size:1.1rem;color:var(--text-primary)}.header-actions{display:flex;gap:var(--space-sm)}.header-actions button{padding:var(--space-sm) var(--space-md);border:none;border-radius:var(--radius-sm);background:var(--bg-tertiary);color:var(--text-secondary);cursor:pointer;font-size:.9rem;transition:all var(--transition-fast)}.header-actions button:hover{background:var(--bg-glass-hover);color:var(--text-primary)}.header-actions .danger{background:var(--accent-danger);color:var(--text-primary)}.header-actions .danger:hover{background:#f33}.messages-container{flex:1;width:100%;padding:var(--space-lg);display:flex;flex-direction:column;gap:var(--space-md);overflow-y:auto;scroll-behavior:smooth;position:relative}.welcome-screen{padding:var(--space-2xl);text-align:center;display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;animation:fadeIn var(--transition-slow)}.welcome-screen h2{margin-bottom:var(--space-md);font-size:2.5rem;font-weight:700;background:var(--gradient-primary);-webkit-background-clip:text;background-clip:text;color:transparent}.welcome-screen p{font-size:1.2rem;color:var(--text-secondary);max-width:600px;line-height:1.8}.message{padding:var(--space-md) var(--space-lg);border-radius:var(--radius-xl);max-width:70%;line-height:1.6;word-wrap:break-word;box-shadow:var(--shadow-sm);animation:messageSlide var(--transition-normal);position:relative;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.message p{margin:0;font-size:.95rem}.message.user{align-self:flex-end;background:var(--gradient-primary);color:var(--text-primary);border-bottom-right-radius:var(--radius-sm);box-shadow:var(--shadow-md)}.message.ai{align-self:flex-start;background:var(--bg-glass);border:1px solid var(--border-secondary);border-bottom-left-radius:var(--radius-sm);color:var(--text-primary)}.message .meta{display:flex;gap:var(--space-sm);margin-top:var(--space-sm);font-size:.75rem;color:var(--text-muted);align-items:center}.message .copy-btn{background:transparent;border:1px solid var(--border-secondary);color:var(--text-secondary);padding:var(--space-xs) var(--space-sm);border-radius:var(--radius-sm);cursor:pointer;font-size:.7rem;transition:all var(--transition-fast)}.message .copy-btn:hover{background:var(--accent-primary);color:var(--text-primary);border-color:var(--accent-primary)}.message.ai.typing{display:flex;align-items:center;padding:var(--space-lg);gap:var(--space-sm)}.message.ai.typing span{width:8px;height:8px;border-radius:var(--radius-full);background:var(--gradient-primary);animation:bounce 1.4s infinite ease-in-out both}.message.ai.typing span:nth-child(1){animation-delay:-.32s}.message.ai.typing span:nth-child(2){animation-delay:-.16s}.chat-form{display:flex;width:100%;padding:var(--space-lg);gap:var(--space-md);background:var(--bg-secondary);border-top:1px solid var(--border-primary);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);position:relative}.chat-form:before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:var(--gradient-primary);opacity:.5}.chat-form input{flex:1;padding:var(--space-md) var(--space-lg);font-size:1rem;border-radius:var(--radius-lg);border:1px solid var(--border-secondary);background:var(--bg-tertiary);color:var(--text-primary);transition:all var(--transition-normal);outline:none;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.chat-form input:focus{border-color:var(--accent-primary);background:var(--bg-glass-hover);box-shadow:0 0 0 2px #00d4ff33;transform:translateY(-1px)}.chat-form input::placeholder{color:var(--text-muted);transition:color var(--transition-normal)}.chat-form input:focus::placeholder{color:var(--text-secondary)}.chat-form button{padding:var(--space-md) var(--space-xl);border:none;border-radius:var(--radius-lg);background:var(--gradient-primary);color:var(--text-primary);font-weight:600;cursor:pointer;transition:all var(--transition-normal);min-width:100px;position:relative;overflow:hidden;box-shadow:var(--shadow-sm)}.chat-form button:hover:not(:disabled){transform:translateY(-2px) scale(1.02);box-shadow:var(--shadow-md)}.chat-form button:active{transform:translateY(-1px) scale(1.01)}.chat-form button:disabled{opacity:.5;cursor:not-allowed;transform:none}.mobile-header{display:none;position:fixed;top:0;left:0;right:0;height:60px;background:var(--bg-secondary);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-bottom:1px solid var(--border-primary);z-index:1000;align-items:center;padding:0 var(--space-md);justify-content:space-between}.menu-button{background:none;border:none;color:var(--text-primary);font-size:1.5rem;cursor:pointer;padding:var(--space-sm);border-radius:var(--radius-sm);transition:background-color var(--transition-fast)}.menu-button:hover{background:var(--bg-glass-hover)}.mobile-title{font-size:1.2rem;font-weight:600;margin:0;background:var(--gradient-primary);-webkit-background-clip:text;background-clip:text;color:transparent}.mobile-actions{display:flex;gap:var(--space-sm)}.new-chat-mobile{background:var(--gradient-primary);border:none;color:var(--text-primary);width:40px;height:40px;border-radius:var(--radius-full);font-size:1.2rem;cursor:pointer;transition:transform var(--transition-fast);box-shadow:var(--shadow-sm)}.new-chat-mobile:hover:not(:disabled){transform:scale(1.1)}.new-chat-mobile:disabled{opacity:.5;cursor:not-allowed}.scroll-indicator{position:absolute;top:0;left:0;right:0;height:3px;background:var(--gradient-primary);transform:scaleX(0);transform-origin:left;transition:transform var(--transition-normal);z-index:10}.scroll-to-bottom{position:absolute;bottom:var(--space-lg);right:var(--space-lg);width:50px;height:50px;border-radius:var(--radius-full);background:var(--gradient-primary);border:none;color:var(--text-primary);font-size:1.2rem;cursor:pointer;box-shadow:var(--shadow-md);transition:all var(--transition-normal);opacity:0;transform:translateY(20px);z-index:10}.scroll-to-bottom.visible{opacity:1;transform:translateY(0)}.scroll-to-bottom:hover{transform:translateY(-3px) scale(1.1);box-shadow:var(--shadow-lg)}.session-list::-webkit-scrollbar,.messages-container::-webkit-scrollbar{width:6px}.session-list::-webkit-scrollbar-track,.messages-container::-webkit-scrollbar-track{background:var(--bg-tertiary);border-radius:var(--radius-sm)}.session-list::-webkit-scrollbar-thumb,.messages-container::-webkit-scrollbar-thumb{background:var(--accent-primary);border-radius:var(--radius-sm);transition:all var(--transition-fast)}.session-list::-webkit-scrollbar-thumb:hover,.messages-container::-webkit-scrollbar-thumb:hover{background:var(--accent-secondary)}.session-list,.messages-container{scrollbar-width:thin;scrollbar-color:var(--accent-primary) var(--bg-tertiary)}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes messageSlide{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes bounce{0%,80%,to{transform:scale(0)}40%{transform:scale(1)}}@keyframes glow{0%,to{box-shadow:0 0 5px #00d4ff33}50%{box-shadow:0 0 20px #00d4ff66}}@media (max-width: 768px){.mobile-header{display:flex}.sidebar{position:fixed;top:60px;left:0;height:calc(100vh - 60px);width:100%;transform:translate(-100%);transition:transform var(--transition-normal);z-index:999}.sidebar.open{transform:translate(0)}.sidebar.closed{transform:translate(-100%)}.mobile-overlay{position:fixed;inset:60px 0 0;background:#00000080;z-index:998}.chat-window{margin-top:60px;height:calc(100vh - 60px)}.messages-container{padding:var(--space-md)}.message{max-width:85%;padding:var(--space-md)}.chat-form{padding:var(--space-md)}.chat-form input{padding:var(--space-md);font-size:16px}.chat-form button{padding:var(--space-md);min-width:60px}.welcome-screen h2{font-size:2rem}.welcome-screen p{font-size:1rem}.scroll-to-bottom{width:45px;height:45px;bottom:var(--space-md);right:var(--space-md);font-size:1.1rem}}@media (max-width: 480px){.mobile-header{padding:0 var(--space-sm)}.mobile-title{font-size:1.1rem}.messages-container{padding:var(--space-sm)}.message{max-width:90%;padding:var(--space-sm) var(--space-md)}.chat-form{padding:var(--space-sm);gap:var(--space-sm)}.chat-form input{padding:var(--space-sm) var(--space-md)}.chat-form button{padding:var(--space-sm) var(--space-md);min-width:50px}}.glass-effect{background:var(--bg-glass);border:1px solid var(--border-secondary);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.gradient-text{background:var(--gradient-primary);-webkit-background-clip:text;background-clip:text;color:transparent}.shadow-glow{box-shadow:var(--shadow-glow)}.loading{opacity:.6;pointer-events:none}.loading:after{content:"";position:absolute;top:50%;left:50%;width:20px;height:20px;margin:-10px 0 0 -10px;border:2px solid var(--accent-primary);border-top:2px solid transparent;border-radius:var(--radius-full);animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}