@import"https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap";:root{--bg-primary: #0a0a0a;--bg-secondary: #111111;--bg-tertiary: #1a1a1a;--bg-elevated: #222222;--bg-hover: #2a2a2a;--text-primary: #f5f5f5;--text-secondary: #a0a0a0;--text-tertiary: #666666;--text-inverse: #0a0a0a;--accent: #00d4ff;--accent-hover: #00b8e0;--accent-glow: rgba(0, 212, 255, .15);--accent-soft: rgba(0, 212, 255, .08);--danger: #ff4757;--success: #2ed573;--warning: #ffa502;--border: rgba(255, 255, 255, .06);--border-light: rgba(255, 255, 255, .1);--space-xs: 4px;--space-sm: 8px;--space-md: 16px;--space-lg: 24px;--space-xl: 32px;--space-2xl: 48px;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 24px;--radius-full: 9999px;--font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-size-xs: .75rem;--font-size-sm: .8125rem;--font-size-md: .9375rem;--font-size-lg: 1.125rem;--font-size-xl: 1.5rem;--font-size-2xl: 2rem;--font-size-3xl: 2.5rem;--transition-fast: .15s cubic-bezier(.4, 0, .2, 1);--transition-base: .25s cubic-bezier(.4, 0, .2, 1);--transition-slow: .4s cubic-bezier(.4, 0, .2, 1);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);--shadow-md: 0 4px 12px rgba(0, 0, 0, .4);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .5);--shadow-glow: 0 0 20px var(--accent-glow)}*{margin:0;padding:0;box-sizing:border-box}html,body,#root{height:100%;width:100%;overflow:hidden}body{font-family:var(--font-family);background:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;line-height:1.5}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--bg-hover);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--text-tertiary)}::selection{background:var(--accent);color:var(--text-inverse)}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}.auth-page{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:var(--space-md);background:var(--bg-primary);background-image:radial-gradient(ellipse at 20% 50%,var(--accent-soft) 0%,transparent 50%),radial-gradient(ellipse at 80% 20%,rgba(0,212,255,.04) 0%,transparent 50%)}.auth-container{width:100%;max-width:400px;display:flex;flex-direction:column;gap:var(--space-xl)}.auth-header{text-align:center;display:flex;flex-direction:column;align-items:center;gap:var(--space-sm)}.auth-logo{width:72px;height:72px;border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:center;margin-bottom:var(--space-sm)}.auth-logo-icon{width:72px;height:72px;border-radius:var(--radius-lg);box-shadow:var(--shadow-glow)}.auth-title{font-size:var(--font-size-3xl);font-weight:700;letter-spacing:-.03em;background:linear-gradient(135deg,var(--text-primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.auth-subtitle{font-size:var(--font-size-md);color:var(--text-secondary)}.auth-form{display:flex;flex-direction:column;gap:var(--space-lg);background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-lg);padding:var(--space-lg)}.auth-tabs{display:flex;gap:var(--space-xs);background:var(--bg-primary);border-radius:var(--radius-md);padding:var(--space-xs)}.auth-tab{flex:1;padding:var(--space-sm) var(--space-md);border:none;border-radius:var(--radius-sm);background:transparent;color:var(--text-secondary);font-family:var(--font-family);font-size:var(--font-size-sm);font-weight:500;cursor:pointer;transition:all var(--transition-fast)}.auth-tab.active{background:var(--bg-elevated);color:var(--text-primary);box-shadow:var(--shadow-sm)}.auth-tab:hover:not(.active){color:var(--text-primary)}.auth-fields{display:flex;flex-direction:column;gap:var(--space-md)}.auth-label{display:flex;flex-direction:column;gap:var(--space-xs);font-size:var(--font-size-sm);color:var(--text-secondary);font-weight:500}.auth-input{padding:var(--space-sm) var(--space-md);background:var(--bg-primary);border:1px solid var(--border-light);border-radius:var(--radius-sm);color:var(--text-primary);font-family:var(--font-family);font-size:var(--font-size-md);transition:border-color var(--transition-fast)}.auth-input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow)}.auth-input::placeholder{color:var(--text-tertiary)}.auth-error{padding:var(--space-sm) var(--space-md);background:#ff47571a;border:1px solid rgba(255,71,87,.2);border-radius:var(--radius-sm);color:var(--danger);font-size:var(--font-size-sm)}.auth-success{padding:var(--space-sm) var(--space-md);background:#2ed5731a;border:1px solid rgba(46,213,115,.2);border-radius:var(--radius-sm);color:var(--success);font-size:var(--font-size-sm)}.auth-submit{padding:var(--space-sm) var(--space-lg);background:linear-gradient(135deg,var(--accent),#0088cc);border:none;border-radius:var(--radius-sm);color:var(--text-inverse);font-family:var(--font-family);font-size:var(--font-size-md);font-weight:600;cursor:pointer;transition:all var(--transition-fast);min-height:44px;display:flex;align-items:center;justify-content:center}.auth-submit:hover:not(:disabled){filter:brightness(1.1);box-shadow:var(--shadow-glow)}.auth-submit:active:not(:disabled){transform:scale(.98)}.auth-submit:disabled{opacity:.6;cursor:not-allowed}.auth-spinner{width:20px;height:20px;border:2px solid rgba(0,0,0,.2);border-top-color:var(--text-inverse);border-radius:50%;animation:spin .6s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.auth-footer{text-align:center;font-size:var(--font-size-xs);color:var(--text-tertiary)}.sidebar-overlay{position:fixed;inset:0;background:#0009;z-index:90;animation:fadeIn .2s ease-out}.sidebar{position:fixed;top:0;left:0;bottom:0;width:280px;background:var(--bg-secondary);border-right:1px solid var(--border);z-index:100;display:flex;flex-direction:column;transform:translate(-100%);transition:transform var(--transition-base)}.sidebar.open{transform:translate(0)}.sidebar-header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-md) var(--space-lg);border-bottom:1px solid var(--border)}.sidebar-brand{display:flex;align-items:center;gap:var(--space-sm)}.sidebar-brand-icon{width:32px;height:32px;border-radius:var(--radius-sm);background:linear-gradient(135deg,var(--accent),#0066ff);display:flex;align-items:center;justify-content:center;font-size:16px}.sidebar-brand-name{font-weight:700;font-size:var(--font-size-lg)}.sidebar-close{background:none;border:none;color:var(--text-secondary);cursor:pointer;padding:var(--space-sm);border-radius:var(--radius-sm);transition:all var(--transition-fast)}.sidebar-close:hover{color:var(--text-primary);background:var(--bg-hover)}.sidebar-nav{flex:1;overflow-y:auto;padding:var(--space-md);display:flex;flex-direction:column;gap:var(--space-xs)}.sidebar-nav-item{display:flex;align-items:center;gap:var(--space-sm);padding:var(--space-sm) var(--space-md);background:none;border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-secondary);font-family:var(--font-family);font-size:var(--font-size-sm);cursor:pointer;transition:all var(--transition-fast);width:100%;text-align:left}.sidebar-nav-item:hover,.sidebar-nav-item.active{color:var(--text-primary);background:var(--bg-hover);border-color:var(--border-light)}.sidebar-section-label{font-size:var(--font-size-xs);color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.05em;font-weight:600;padding:var(--space-md) var(--space-sm) var(--space-xs)}.sidebar-empty{font-size:var(--font-size-sm);color:var(--text-tertiary);padding:var(--space-sm);text-align:center}.sidebar-footer{padding:var(--space-md);border-top:1px solid var(--border);display:flex;flex-direction:column;gap:var(--space-sm)}.sidebar-user{display:flex;align-items:center;gap:var(--space-sm)}.sidebar-user-avatar{width:36px;height:36px;border-radius:var(--radius-sm);background:var(--bg-elevated);display:flex;align-items:center;justify-content:center;font-weight:600;font-size:var(--font-size-sm);color:var(--accent);flex-shrink:0}.sidebar-user-info{display:flex;flex-direction:column;min-width:0}.sidebar-user-name{font-size:var(--font-size-sm);font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sidebar-user-plan{font-size:var(--font-size-xs);color:var(--text-tertiary)}.sidebar-signout{padding:var(--space-sm);background:none;border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-secondary);font-family:var(--font-family);font-size:var(--font-size-sm);cursor:pointer;transition:all var(--transition-fast)}.sidebar-signout:hover{color:var(--danger);border-color:#ff47574d;background:#ff475714}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.chat-page{display:flex;height:100vh;background:var(--bg-primary)}.chat-main{flex:1;display:flex;flex-direction:column;min-width:0}.chat-header{display:flex;align-items:center;padding:var(--space-md) var(--space-lg);border-bottom:1px solid var(--border);background:var(--bg-secondary);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);min-height:56px}.chat-menu-btn{background:none;border:none;color:var(--text-secondary);cursor:pointer;padding:var(--space-sm);border-radius:var(--radius-sm);transition:all var(--transition-fast);display:flex;align-items:center}.chat-menu-btn:hover{color:var(--text-primary);background:var(--bg-hover)}.chat-header-title{flex:1;text-align:center;font-weight:600;font-size:var(--font-size-md);display:flex;align-items:center;justify-content:center;gap:var(--space-sm)}.chat-header-dot{width:8px;height:8px;border-radius:50%;background:var(--success);box-shadow:0 0 6px #2ed57380}.chat-header-spacer{width:36px}.chat-messages{flex:1;overflow-y:auto;padding:var(--space-lg);display:flex;flex-direction:column;gap:var(--space-md)}.chat-bubble{display:flex;gap:var(--space-sm);max-width:85%;animation:fadeSlideUp .3s ease-out}.chat-bubble.user{align-self:flex-end;flex-direction:row-reverse}.chat-bubble.assistant{align-self:flex-start}.chat-avatar{width:32px;height:32px;border-radius:var(--radius-sm);background:linear-gradient(135deg,var(--accent),#0066ff);display:flex;align-items:center;justify-content:center;font-size:14px;flex-shrink:0;margin-top:2px}.chat-bubble-content{padding:var(--space-sm) var(--space-md);border-radius:var(--radius-md);font-size:var(--font-size-md);line-height:1.6;white-space:pre-wrap;word-break:break-word}.chat-bubble.assistant .chat-bubble-content{background:var(--bg-secondary);border:1px solid var(--border);color:var(--text-primary);border-top-left-radius:var(--space-xs)}.chat-bubble.user .chat-bubble-content{background:linear-gradient(135deg,var(--accent),#0088cc);color:var(--text-inverse);border-top-right-radius:var(--space-xs)}.typing-indicator{display:flex;gap:4px;padding:4px 0}.typing-indicator span{width:6px;height:6px;border-radius:50%;background:var(--text-tertiary);animation:typingBounce 1.4s ease-in-out infinite}.typing-indicator span:nth-child(2){animation-delay:.2s}.typing-indicator span:nth-child(3){animation-delay:.4s}@keyframes typingBounce{0%,60%,to{transform:translateY(0);opacity:.4}30%{transform:translateY(-6px);opacity:1}}@keyframes fadeSlideUp{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.chat-input-bar{display:flex;align-items:flex-end;gap:var(--space-sm);padding:var(--space-md) var(--space-lg);border-top:1px solid var(--border);background:var(--bg-secondary)}.chat-input{flex:1;padding:var(--space-sm) var(--space-md);background:var(--bg-primary);border:1px solid var(--border-light);border-radius:var(--radius-md);color:var(--text-primary);font-family:var(--font-family);font-size:var(--font-size-md);resize:none;min-height:44px;max-height:120px;line-height:1.5;transition:border-color var(--transition-fast)}.chat-input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow)}.chat-input::placeholder{color:var(--text-tertiary)}.chat-send-btn{width:44px;height:44px;border:none;border-radius:var(--radius-md);background:linear-gradient(135deg,var(--accent),#0088cc);color:var(--text-inverse);cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:all var(--transition-fast)}.chat-send-btn:hover:not(:disabled){filter:brightness(1.1);box-shadow:var(--shadow-glow)}.chat-send-btn:active:not(:disabled){transform:scale(.95)}.chat-send-btn:disabled{opacity:.3;cursor:not-allowed}@media(max-width:768px){.chat-messages{padding:var(--space-md)}.chat-input-bar{padding:var(--space-sm) var(--space-md)}.chat-bubble{max-width:92%}}