@import"https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap";@import"https://fonts.googleapis.com/css2?family=Material+Symbols+Rounded:opsz,wght,FILL,GRAD@20..48,100..700,0..1,-50..200";.app-container{display:flex;height:100vh;width:100vw;overflow:hidden;position:relative;background:var(--bg-primary)}.auth-gate-page{min-height:100vh;width:100vw;display:flex;align-items:center;justify-content:center;padding:1.2rem;background:radial-gradient(circle at 10% 10%,color-mix(in oklab,var(--accent) 20%,transparent),transparent 40%),radial-gradient(circle at 90% 90%,color-mix(in oklab,var(--accent-strong) 28%,transparent),transparent 34%),var(--bg-primary)}.auth-gate-card{width:min(680px,100%);border:1px solid var(--border-color);border-radius:20px;background:color-mix(in oklab,var(--bg-elevated) 95%,transparent);box-shadow:0 24px 70px -40px #000000b3;padding:1.8rem}.auth-gate-logo{width:44px;height:44px;border-radius:999px;background:linear-gradient(140deg,var(--accent),var(--accent-strong));display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;margin-bottom:1rem}.auth-gate-title{font-size:clamp(1.25rem,2.8vw,1.75rem);line-height:1.2;color:var(--text-primary);margin-bottom:.55rem}.auth-gate-description{color:var(--text-secondary);font-size:.96rem;line-height:1.6;margin-bottom:1rem}.auth-gate-error{margin-bottom:.75rem;color:#ff9f9f;font-size:.86rem}.auth-gate-login-btn{border:1px solid var(--border-color);background:linear-gradient(120deg,var(--accent),var(--accent-strong));color:#fff;border-radius:11px;padding:.65rem 1rem;font-weight:700;font-size:.92rem;transition:var(--transition)}.auth-gate-login-btn:hover:not(:disabled){filter:brightness(1.08)}.auth-gate-login-btn:disabled{cursor:not-allowed;opacity:.6}.sidebar-backdrop{display:none}.sidebar{width:var(--sidebar-width);min-width:var(--sidebar-width);background:linear-gradient(180deg,var(--bg-sidebar),var(--bg-sidebar-strong));border-right:1px solid var(--border-color);height:100%;display:flex;flex-direction:column;padding:1rem .75rem;transition:width .28s ease,min-width .28s ease,padding .2s ease,transform .25s ease,opacity .2s ease;z-index:20;overflow:hidden}.sidebar.closed{width:0;min-width:0;padding:0;border-right:none;opacity:0;transform:none;pointer-events:none}.sidebar.collapsed-mini{width:56px;min-width:56px;padding:.6rem .4rem;opacity:1;pointer-events:auto}.sidebar-top{display:flex;align-items:center;gap:.6rem;margin-bottom:1rem}.sidebar-toggle{border:1px solid var(--border-color)}.new-chat-btn{flex:1;display:flex;align-items:center;justify-content:space-between;width:100%;padding:.75rem;color:var(--text-primary);border:1px solid var(--border-color);background:var(--bg-elevated);border-radius:var(--radius-sm);font-size:.9rem;font-weight:600;transition:var(--transition)}.new-chat-btn:hover{background:var(--bg-hover);border-color:var(--border-strong)}.new-chat-btn .material-symbols-rounded{font-size:18px}.new-chat-left{display:flex;align-items:center;gap:.45rem}.history-list{flex:1;overflow-y:auto;margin-top:.75rem;display:flex;flex-direction:column;gap:.35rem;padding-right:.2rem}.sidebar.closed .sidebar-top,.sidebar.closed .history-list,.sidebar.closed .new-chat-btn,.sidebar.closed .history-section-title,.sidebar.closed .history-item{opacity:0;height:0;margin:0;padding:0}.history-section-title{font-size:.72rem;color:var(--text-muted);font-weight:700;letter-spacing:.06em;text-transform:uppercase;padding:.5rem .65rem .2rem;margin-top:.35rem}.history-item{display:flex;align-items:center;width:100%;padding:.62rem .65rem;color:var(--text-secondary);border-radius:var(--radius-sm);font-size:.86rem;text-align:left;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;transition:var(--transition)}.history-item:hover,.history-item.active{background:var(--bg-hover);color:var(--text-primary)}.main-chat{flex:1;display:flex;flex-direction:column;height:100%;position:relative;background:radial-gradient(circle at top center,var(--bg-radial),var(--bg-primary) 45%)}.chat-header{min-height:64px;display:flex;align-items:center;padding:.65rem 1rem;position:sticky;top:0;z-index:5;background:color-mix(in oklab,var(--bg-primary) 92%,transparent);border-bottom:1px solid var(--border-color);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);gap:.55rem}.toggle-sidebar-btn{color:var(--text-secondary);padding:.45rem;border-radius:var(--radius-sm);transition:var(--transition);display:flex;align-items:center;justify-content:center}.toggle-sidebar-btn:hover{background:var(--bg-hover);color:var(--text-primary)}.toggle-sidebar-btn .material-symbols-rounded{font-size:19px}.theme-toggle-btn{display:inline-flex;align-items:center;gap:.3rem;border:1px solid var(--border-color);background:var(--bg-elevated);color:var(--text-primary);padding:.38rem .55rem}.theme-toggle-btn:hover{border-color:var(--border-strong)}.theme-toggle-label{font-size:.76rem;font-weight:700;color:var(--text-secondary)}.chat-title-wrap{display:flex;flex-direction:column;min-width:0;margin-left:.2rem}.chat-title{font-size:.95rem;font-weight:700;color:var(--text-primary);line-height:1.15}.chat-subtitle{font-size:.76rem;color:var(--text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.token-tracker{display:flex;align-items:center;gap:.65rem;background:var(--bg-elevated);padding:.32rem .6rem;border-radius:999px;font-size:.74rem;color:var(--text-primary);margin-left:auto;border:1px solid var(--border-color)}.tracker-icon{color:var(--accent);font-size:16px}.tracker-stat{display:flex;align-items:center;gap:.2rem;color:var(--text-secondary)}.tracker-stat span{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,Courier New,monospace;color:var(--accent);font-weight:700}.tracker-cost{border-left:1px solid var(--border-color);padding-left:.45rem;margin-left:.1rem}.auth-buttons{display:flex;align-items:center;gap:.35rem;margin-left:.4rem;color:var(--text-secondary);font-weight:600}.auth-label{font-size:.84rem}.auth-avatar{width:28px;height:28px;border-radius:999px;object-fit:cover;flex-shrink:0;border:1px solid var(--border-color)}.auth-avatar-fallback{display:flex;align-items:center;justify-content:center;background:var(--bg-elevated);color:var(--text-secondary);font-size:.72rem;font-weight:700}.chat-history{flex:1;overflow-y:auto;padding-bottom:1.25rem;display:flex;flex-direction:column}.auth-token-banner{margin:.55rem 1rem 0;border:1px solid var(--border-color);border-radius:12px;background:var(--bg-elevated);padding:.6rem .75rem}.auth-token-heading-row{display:flex;align-items:center;justify-content:space-between;gap:.6rem;margin-bottom:.4rem}.auth-token-label{color:var(--text-secondary);font-size:.76rem;font-weight:700;letter-spacing:.02em}.auth-token-copy-btn{border:1px solid var(--border-color);background:transparent;color:var(--text-secondary);border-radius:8px;padding:.2rem .5rem;font-size:.74rem;font-weight:700}.auth-token-value{display:block;color:var(--text-primary);font-size:.75rem;line-height:1.5;white-space:pre-wrap;word-break:break-all;max-height:110px;overflow-y:auto}.empty-chat{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:2rem 1rem}.logo-large{width:64px;height:64px;background:linear-gradient(145deg,var(--accent),var(--accent-strong));border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;margin-bottom:1rem;box-shadow:0 12px 24px -10px var(--accent-glow)}.logo-large .material-symbols-rounded{font-size:30px}.empty-title{font-size:clamp(1.15rem,2.4vw,1.8rem);font-weight:700;margin-bottom:.4rem;color:var(--text-primary)}.empty-subtitle{font-size:.92rem;color:var(--text-muted);margin-bottom:1.2rem}.suggestions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.85rem;max-width:760px;width:100%}.suggestion-card{background:var(--bg-elevated);border:1px solid var(--border-color);padding:.9rem;border-radius:var(--radius);text-align:left;transition:var(--transition);color:var(--text-primary);min-height:102px}.suggestion-card:hover{background:var(--bg-hover);border-color:var(--border-strong);transform:translateY(-1px)}.suggestion-icon-wrap{margin-bottom:.45rem}.suggestion-icon{font-size:22px;color:var(--accent)}.suggestion-title{font-weight:600;font-size:.9rem;margin-bottom:.2rem}.suggestion-desc{color:var(--text-muted);font-size:.82rem}.message-node{padding:1.2rem 0;width:100%}.message-node.user{background:color-mix(in oklab,var(--bg-message-user) 88%,transparent)}.message-node.ai{background:transparent}.message-content-wrapper{max-width:860px;margin:0 auto;display:flex;gap:.95rem;padding:0 1rem}.avatar{width:34px;height:34px;border-radius:10px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.avatar .material-symbols-rounded{font-size:18px}.avatar.user-avatar{background:#553592;color:#fff}.avatar.ai-avatar{background:var(--accent);color:#fff}.message-text{flex:1;font-size:.95rem;line-height:1.7;white-space:pre-wrap;color:var(--text-primary);padding-top:.1rem}.input-area-container{padding:.7rem 0 .85rem;width:100%;background:linear-gradient(180deg,transparent,var(--bg-primary) 15%);position:relative}.input-wrapper{max-width:860px;margin:0 auto;padding:0 1rem;position:relative}.input-box{background:var(--bg-input);border:1px solid var(--border-color);border-radius:18px;padding:.55rem .75rem;display:flex;align-items:flex-end;gap:.35rem;box-shadow:0 8px 24px -18px #0009;transition:var(--transition)}.input-box:focus-within{border-color:var(--border-strong);background:var(--bg-elevated);box-shadow:0 8px 24px -12px var(--accent-glow)}.input-box textarea{width:100%;background:transparent;border:none;color:var(--text-primary);font-size:.95rem;line-height:1.45;resize:none;max-height:190px;min-height:22px;outline:none;overflow-y:auto;padding:.4rem 0}.input-box textarea::placeholder{color:var(--text-secondary)}.model-selector{display:flex;align-items:center;gap:.2rem;color:var(--text-secondary);font-size:.8rem;font-weight:700;border-radius:10px;cursor:pointer;transition:var(--transition)}.model-selector .material-symbols-rounded{font-size:16px}.model-selector:hover{color:var(--text-primary)}.model-dropdown{position:absolute;top:48px;left:0;background:var(--bg-elevated);border:1px solid var(--border-color);border-radius:var(--radius);padding:.45rem;display:flex;flex-direction:column;gap:.2rem;min-width:220px;box-shadow:0 10px 28px -18px #000000b3;z-index:40}.model-dropdown.bottom-up{top:auto;bottom:calc(100% + .35rem);left:auto;right:0}.model-option{display:flex;flex-direction:column;padding:.52rem .65rem;border-radius:10px;text-align:left;color:var(--text-primary);transition:var(--transition)}.model-option:hover,.model-option.active{background:var(--bg-hover)}.model-name{font-weight:600;font-size:.84rem}.model-desc{font-size:.74rem;color:var(--text-muted)}.model-selected{color:var(--accent);font-size:15px}.send-btn{background:var(--accent);color:#fff;width:34px;height:34px;border-radius:10px;display:flex;align-items:center;justify-content:center;transition:var(--transition)}.send-btn:hover:not(:disabled){background:var(--accent-strong)}.send-btn:disabled{background:var(--text-muted);opacity:.5;cursor:not-allowed}.send-btn .material-symbols-rounded{font-size:18px}.footer-text{text-align:center;font-size:.72rem;color:var(--text-muted);margin-top:.55rem}.material-symbols-rounded{font-variation-settings:"FILL" 1,"wght" 500,"GRAD" 0,"opsz" 20;line-height:1;-webkit-user-select:none;user-select:none}@media (max-width: 1024px){.sidebar{position:absolute;left:0;top:0;bottom:0;width:min(84vw,320px);min-width:min(84vw,320px);box-shadow:0 16px 40px -24px #000c}.sidebar-backdrop{display:block;position:absolute;top:0;right:0;bottom:0;left:0;background:#00000073;z-index:15}.chat-subtitle{display:none}.token-tracker{margin-left:0}}@media (max-width: 768px){.chat-header{padding:.6rem .7rem;gap:.35rem}.chat-title{font-size:.9rem}.theme-toggle-label{display:none}.token-tracker{padding:.25rem .45rem;gap:.45rem;font-size:.7rem}.tracker-stat:nth-child(3){display:none}.auth-label{display:none}.auth-token-banner{margin:.5rem .7rem 0}.auth-token-value{max-height:78px;font-size:.7rem}.suggestions{grid-template-columns:1fr}.suggestion-card{min-height:auto}.message-content-wrapper,.input-wrapper{padding:0 .75rem}.message-node{padding:1rem 0}.message-text{font-size:.9rem}.input-area-container{padding:.55rem 0 .7rem}.model-dropdown{min-width:180px}}@media (max-width: 480px){.chat-header{min-height:56px}.chat-title-wrap{max-width:122px}.chat-title{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.token-tracker{display:none}.empty-title{font-size:1rem}.empty-subtitle{font-size:.8rem}.input-box textarea{font-size:.9rem}}.auth-page-container{height:100vh;width:100%;display:flex;background-color:#fff;overflow:hidden;font-family:Inter,system-ui,-apple-system,sans-serif}.auth-split-wrapper{display:flex;width:100%;height:100%}.auth-form-section{flex:1.2;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:2rem;background:#fff;z-index:10}.auth-card{width:100%;max-width:440px;padding:2rem;display:flex;flex-direction:column;gap:2.5rem}.auth-header{text-align:left}.auth-logo{display:flex;align-items:center;gap:.6rem;margin-bottom:1.5rem}.auth-logo span{font-size:2.2rem;color:#2563eb}.auth-logo h2{font-size:1.6rem;font-weight:700;color:#1e293b;letter-spacing:-.01em}.auth-title{font-size:1.85rem;font-weight:700;color:#0f172a;margin-bottom:.75rem;letter-spacing:-.02em}.auth-subtitle{color:#64748b;font-size:1rem;line-height:1.5}.auth-actions{display:flex;flex-direction:column;gap:1.25rem}.microsoft-btn{display:flex;align-items:center;justify-content:center;gap:1rem;padding:.9rem;background:#fff;border:1px solid #e2e8f0;border-radius:12px;color:#1e293b;font-weight:600;font-size:1rem;cursor:pointer;transition:all .2s cubic-bezier(.4,0,.2,1);box-shadow:0 1px 2px #0000000d}.microsoft-btn:hover:not(:disabled){background:#f8fafc;border-color:#cbd5e1;transform:translateY(-1px);box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -1px #0000000f}.microsoft-btn:active:not(:disabled){transform:translateY(0)}.microsoft-btn:disabled{opacity:.7;cursor:not-allowed;background:#f1f5f9}.microsoft-btn img{width:22px;height:22px}.auth-help-text{font-size:.85rem;color:#94a3b8;text-align:center;line-height:1.4}.auth-error-message{background:#fff1f2;border:1px solid #fecdd3;color:#be123c;padding:.8rem;border-radius:10px;font-size:.9rem;text-align:center;font-weight:500}.auth-footer-simple{margin-top:auto;font-size:.8rem;color:#94a3b8}.auth-visual-section{flex:1;position:relative;display:flex;align-items:center;justify-content:center;background:#0f172a;overflow:hidden}.auth-visual-image{position:absolute;top:50%;left:50%;width:100%;height:100%;object-fit:cover;transform:translate(-50%,-50%);opacity:.7}.auth-visual-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(135deg,#0f172af2,#0f172a80)}.auth-visual-content{position:relative;z-index:10;padding:4rem;color:#fff;max-width:580px}.visual-tag{display:inline-block;padding:.5rem 1rem;background:#2563eb33;border:1px solid rgba(37,99,235,.3);border-radius:30px;font-size:.75rem;font-weight:600;color:#60a5fa;margin-bottom:2rem;text-transform:uppercase;letter-spacing:.08em}.auth-visual-content h1{font-size:3rem;font-weight:800;line-height:1.1;margin-bottom:1.5rem;letter-spacing:-.03em}.auth-visual-content h1 span{color:#3b82f6;background:linear-gradient(to right,#60a5fa,#2563eb);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.auth-visual-content p{font-size:1.15rem;color:#cbd5e1;line-height:1.7;margin-bottom:3rem}.auth-mini-stats{display:flex;gap:3rem}.mini-stat{display:flex;flex-direction:column}.mini-stat strong{font-size:1.75rem;font-weight:700;color:#f8fafc}.mini-stat span{font-size:.85rem;color:#94a3b8;text-transform:uppercase;letter-spacing:.05em;margin-top:.25rem}@media (max-width: 1024px){.auth-visual-section{display:none}.auth-form-section{flex:1}}@media (max-width: 480px){.auth-card{padding:1rem}.auth-title{font-size:1.5rem}}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg-primary: #13161f;--bg-secondary: #1b2230;--bg-sidebar: #10151f;--bg-sidebar-strong: #0d121b;--bg-hover: #273043;--bg-input: #1a2130;--bg-message-user: #1c2535;--bg-message-ai: transparent;--bg-elevated: #202939;--bg-radial: rgba(59, 130, 246, .08);--border-color: #2d384e;--border-strong: #3c4e6c;--text-primary: #e8edf8;--text-secondary: #a7b2c9;--text-muted: #7f8ba5;--accent: #3b82f6;--accent-strong: #2563eb;--accent-glow: rgba(59, 130, 246, .3);--sidebar-width: 260px;--transition: all .2s ease;--radius: 12px;--radius-sm: 8px}:root.light-mode{--bg-primary: #f6f8fc;--bg-secondary: #ffffff;--bg-sidebar: #f1f5fb;--bg-sidebar-strong: #eef3fb;--bg-hover: #e7edf8;--bg-input: #ffffff;--bg-message-user: #eef3fb;--bg-message-ai: transparent;--bg-elevated: #ffffff;--bg-radial: rgba(37, 99, 235, .06);--border-color: #dde5f3;--border-strong: #cad6ec;--text-primary: #111827;--text-secondary: #4b5563;--text-muted: #6b7280;--accent: #2563eb;--accent-strong: #1d4ed8;--accent-glow: rgba(37, 99, 235, .2)}html,body,#root{height:100%;width:100%}body{font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;background:var(--bg-primary);color:var(--text-primary);line-height:1.6;-webkit-font-smoothing:antialiased}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:10px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}button{cursor:pointer;border:none;background:none;font-family:inherit}input,textarea{font-family:inherit}a{color:inherit;text-decoration:none}