:root{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--bg:#111113;--bg-sidebar:#0a0a0b;--surface:#17171a;--surface-2:#1e1e22;--surface-3:#28282d;--border:#ffffff14;--border-strong:#ffffff29;--text:#ededee;--text-secondary:#b9b9c0;--text-muted:#8e8e96;--accent:#863bff;--accent-hover:#9a63ff;--accent-soft:#863bff24;--accent-contrast:#fff;--btn-primary-bg:#f4f4f5;--btn-primary-text:#0c0c0d;--btn-primary-hover:#dcdce0;--danger:#ef4444;--danger-soft:#ef44441f;--success:#22c55e;--shadow-sm:0 1px 2px #00000059;--shadow-md:0 4px 16px #0006;--shadow-lg:0 16px 48px #0000008c;--overlay:#0009;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:24px;--font-ui:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-mono:"JetBrains Mono", "SF Mono", Consolas, monospace}[data-theme=light]{--lightningcss-light:initial;--lightningcss-dark: 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#00000024;--overlay:#14141966}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%}body{font-family:var(--font-ui);background-color:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizelegibility;line-height:1.6;overflow:hidden}h1,h2,h3,h4{font-family:var(--font-ui);color:var(--text);letter-spacing:-.02em}a{color:var(--accent);text-decoration:none}button,input,textarea,select{font-family:var(--font-ui)}img{max-width:100%;display:block}::selection{background:var(--accent-soft);color:var(--text)}:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:var(--radius-sm)}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--surface-3);border-radius:99px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}@keyframes kmDialogIn{0%{opacity:0;transform:scale(.96)}to{opacity:1;transform:scale(1)}}.km-dialog-overlay{z-index:1200;background:var(--overlay);justify-content:center;align-items:center;padding:16px;display:flex;position:fixed;top:0;bottom:0;left:0;right:0}.km-dialog{background:var(--surface);border:1px solid var(--border);width:min(100%,380px);box-shadow:var(--shadow-lg);text-align:center;border-radius:28px;flex-direction:column;align-items:stretch;padding:24px 22px 16px;animation:.16s cubic-bezier(.22,1,.36,1) both kmDialogIn;display:flex}.km-dialog-icon{background:var(--bg);width:40px;height:40px;color:var(--text-secondary);border-radius:50%;justify-content:center;align-items:center;margin:0 auto 14px;display:flex}.km-dialog-icon.danger{background:var(--danger-soft);color:var(--danger)}.km-dialog h2{letter-spacing:-.01em;margin:0;font-size:19px;font-weight:500}.km-dialog p{color:var(--text-secondary);margin:10px 0 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emptyIn{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}.empty-state{flex:1;justify-content:center;align-items:center;min-height:0;padding:48px 24px 34px;display:flex;overflow-y:auto}.empty-inner{text-align:center;flex-direction:column;align-items:center;gap:15px;width:min(100%,760px);display:flex}.empty-inner>*{animation:.32s cubic-bezier(.22,1,.36,1) both emptyIn}.empty-inner>:nth-child(2){animation-delay:70ms}.empty-title{color:var(--text);font-family:var(--font-display);letter-spacing:-.02em;margin:0;font-size:clamp(34px,4vw,44px);font-weight:400;line-height:1.15}@media (max-width:640px){.empty-state{padding:30px 18px 16px}.empty-title{font-size:34px}}[data-reduce-motion=true] .empty-inner>*{animation:none}.ms-root{position:relative}.ms-trigger{background:var(--surface-2);border:1px solid var(--border);border-radius:var(--radius-md);color:var(--text);cursor:pointer;align-items:center;gap:8px;max-width:210px;padding:7px 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var(--border);margin-top:4px;padding-top:2px}.ms-row.locked{opacity:.55;cursor:not-allowed}.ms-soon{color:var(--text-muted);flex-shrink:0;align-items:center;gap:4px;font-size:10px;font-weight:600;display:flex}.ms-loading{padding:8px}.ms-skeleton{background:var(--surface-2);border-radius:var(--radius-sm);animation:1.5s ease-in-out infinite msPulse}.ms-skeleton-title{width:60px;height:12px;margin-bottom:10px}.ms-skeleton-row{height:36px;margin-bottom:4px}@keyframes msPulse{0%,to{opacity:.4}50%{opacity:.8}}@media (max-width:768px){.ms-trigger{max-width:132px;padding:7px 9px}.ms-panel{width:min(280px,100vw - 32px);position:fixed;top:64px;left:auto;right:12px}}.toast-container{z-index:100;pointer-events:none;flex-direction:column;align-items:center;gap:8px;width:min(92vw,480px);display:flex;position:fixed;bottom:24px;left:50%;transform:translate(-50%)}.toast{pointer-events:auto;background:var(--surface);border:1px solid 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env(safe-area-inset-bottom));background:var(--bg);color:var(--text);font-family:var(--font-ui);flex-direction:column;align-items:center;display:flex;position:fixed;top:0;bottom:0;left:0;right:0;overflow-y:auto}.auth-welcome-center{flex-direction:column;flex:1;justify-content:center;align-items:center;gap:16px;animation:.32s cubic-bezier(.22,1,.36,1) both authIn;display:flex}.auth-brand{letter-spacing:-.02em;margin:0;font-size:28px;font-weight:600}.auth-welcome-actions{flex-direction:column;gap:10px;width:min(100%,420px);padding-bottom:8px;animation:.32s cubic-bezier(.22,1,.36,1) 80ms both authIn;display:flex}.auth-btn{cursor:pointer;border:1px solid #0000;border-radius:99px;justify-content:center;align-items:center;gap:10px;width:100%;min-height:52px;padding:0 20px;font-size:15.5px;font-weight:500;transition:background-color .15s,transform 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14px;font-size:13.5px;line-height:1.45}.auth-error{background:var(--danger-soft);color:var(--danger)}.auth-notice{background:color-mix(in srgb, var(--success) 14%, var(--surface));color:var(--text)}.auth-form-screen{padding-top:0}.auth-back-row{width:min(100%,540px);padding:12px 0}.auth-back{width:44px;height:44px;color:var(--text);cursor:pointer;background:0 0;border:0;border-radius:50%;place-items:center;margin-left:-8px;display:grid}.auth-back:hover{background:var(--surface-2)}.auth-form-body{flex-direction:column;align-items:stretch;width:min(100%,540px);padding-bottom:36px;display:flex}.auth-heading{text-align:center;margin:16px 0 32px;animation:.32s cubic-bezier(.22,1,.36,1) both authIn}.auth-heading h1{letter-spacing:-.02em;margin:0;font-size:24px;font-weight:600}.auth-heading p{color:var(--text-secondary);margin:6px 0 0;font-size:14.5px}.auth-tabs{background:var(--surface);border-radius:14px;grid-template-columns:1fr 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strong{color:var(--accent)}[data-reduce-motion=true] .auth-welcome-center,[data-reduce-motion=true] .auth-welcome-actions,[data-reduce-motion=true] .auth-heading,[data-reduce-motion=true] .auth-verify{animation:none}.pending-deletion{background:var(--bg);width:100%;min-height:100dvh;color:var(--text);font-family:var(--font-ui);place-items:center;padding:24px 16px;display:grid}.pending-deletion-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-xl);width:100%;max-width:420px;box-shadow:var(--shadow-md);flex-direction:column;align-items:stretch;gap:12px;padding:28px 24px;display:flex}.pending-deletion-card h1{font-family:var(--font-display);text-wrap:balance;margin:8px 0 0;font-size:1.35rem;font-weight:600}.pending-deletion-card p{color:var(--text-secondary);margin:0;line-height:1.55}.pending-deletion-card strong{color:var(--text);font-weight:600}.pending-deletion-muted{font-size:.9rem;color:var(--text-muted)!important}.pending-deletion-error{border-radius:var(--radius-md);background:var(--danger-soft);padding:10px 12px;font-size:.9rem;color:var(--danger)!important}.pending-deletion-primary{border-radius:var(--radius-md);background:var(--btn-primary-bg);color:var(--btn-primary-text);font:inherit;cursor:pointer;border:none;margin-top:8px;padding:12px;font-weight:600;transition:background-color .15s}.pending-deletion-primary:hover:not(:disabled){background:var(--btn-primary-hover)}.pending-deletion-link{color:var(--text-muted);font:inherit;cursor:pointer;background:0 0;border:none;padding:8px;font-size:.9rem}.pending-deletion-link:hover:not(:disabled){color:var(--text)}.pending-deletion-card button:disabled{opacity:.6;cursor:default}@media (hover:none){.history-actions{opacity:1}}.profile-avatar-fallback.large{width:48px;height:48px;font-size:18px}@media (max-width:768px){.sidebar{z-index:50;height:100dvh;box-shadow:var(--shadow-lg);transition:transform .25s cubic-bezier(.16,1,.3,1);position:fixed;top:0;left:0;transform:translate(-100%)}.sidebar.open{transform:translate(0)}.sidebar-overlay{display:block}}.offline-banner{z-index:9999;color:#fff;text-align:center;background:#e67e22;padding:6px 12px;font-size:.8rem;font-weight:500;position:fixed;top:0;left:0;right:0}.chat-item.drag-over{background:var(--accent);color:#fff}.drop-overlay{z-index:200;border:3px dashed var(--accent);color:var(--accent);pointer-events:none;background:#000000b3;flex-direction:column;justify-content:center;align-items:center;gap:12px;font-size:1.2rem;font-weight:600;display:flex;position:fixed;top:0;bottom:0;left:0;right:0}@keyframes fadeSlideIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes modalIn{0%{opacity:0;transform:scale(.96)translateY(8px)}to{opacity:1;transform:scale(1)translateY(0)}}@keyframes menuIn{0%{opacity:0;transform:translateY(6px)scale(.98)}to{opacity:1;transform:translateY(0)scale(1)}}@keyframes activityShimmer{0%,to{opacity:.48}50%{opacity:.9}}@keyframes blink{0%,to{opacity:1}50%{opacity:0}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.45}}.app-layout{height:100vh;background-color:var(--bg);width:100vw;height:100dvh;color:var(--text);font-family:var(--font-ui);display:flex;overflow:hidden}.sidebar{background-color:var(--bg-sidebar);border-right:1px solid var(--border);z-index:20;flex-direction:column;flex-shrink:0;width:272px;display:flex}.sidebar-header-row{gap:8px;padding:14px 14px 10px;display:flex}.new-chat-btn{background-color:var(--btn-primary-bg);color:var(--btn-primary-text);border-radius:var(--radius-md);cursor:pointer;border:none;flex:1;justify-content:center;align-items:center;gap:8px;padding:10px 14px;font-size:14px;font-weight:600;transition:background-color .15s,transform 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