.model-settings-page{flex:1;min-height:0;padding:10px clamp(18px,5vw,72px) 64px;overflow-y:auto}.model-settings-inner{max-width:980px;margin:0 auto}.model-settings-heading{margin:40px 0 28px}.model-settings-heading>span{color:#b58100;letter-spacing:.1em;font-family:DM Mono,monospace;font-size:11px}.model-settings-heading h1{letter-spacing:-.04em;margin:10px 0 12px;font-family:Playfair Display,Georgia,serif;font-size:clamp(34px,5vw,50px)}.model-settings-heading p{color:#74756e;max-width:700px;margin:0;font-size:14px;line-height:1.7}.model-settings-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr);align-items:start;gap:18px;display:grid}.model-settings-form,.model-settings-list{background:#fffefa;border:1px solid #e2e0d9;border-radius:14px;padding:24px}.model-settings-form h2,.model-settings-list h2{margin:0 0 20px;font-family:Playfair Display,Georgia,serif;font-size:23px}.model-settings-form label{color:#414239;gap:7px;margin-bottom:16px;font-size:13px;font-weight:700;display:grid}.model-settings-form input,.model-settings-form select{color:#32332e;background:#fff;border:1px solid #dcd9ce;border-radius:9px;width:100%;padding:11px 12px;font-size:13px}.model-settings-form input:focus-visible,.model-settings-form select:focus-visible{outline-offset:1px;outline:2px solid #d7a900}.model-settings-hint{color:#777870;margin:0 0 17px;font-size:12px;line-height:1.5}.model-settings-actions{align-items:center;gap:12px;display:flex}.model-settings-cancel,.model-settings-item-actions button{color:#575850;background:#fff;border:1px solid #deded6;border-radius:8px;padding:9px 11px;font-size:12px}.model-settings-list>p{color:#777870;font-size:13px;line-height:1.6}.model-settings-openai{margin-bottom:18px}.model-settings-openai .model-settings-actions{flex-wrap:wrap}.model-settings-openai .model-settings-actions button{color:#575850;cursor:pointer;background:#fff;border:1px solid #deded6;border-radius:8px;padding:9px 11px}.model-settings-openai .model-settings-actions a{color:#805f00;font-size:13px}.model-settings-openai-models{color:#575850;margin:0 0 20px;padding-left:20px;font-size:13px;line-height:1.8}.model-settings-item{border-top:1px solid #e9e7df;flex-wrap:wrap;justify-content:space-between;gap:12px;padding:14px 0;display:flex}.model-settings-item>div:first-child{gap:4px;min-width:0;display:grid}.model-settings-item strong{font-size:13px}.model-settings-item span{color:#777870;overflow-wrap:anywhere;font-size:12px}.model-settings-item-actions{gap:6px;display:flex}.model-settings-item-actions button:hover,.model-settings-cancel:hover{background:#f1f1ed}@media (width<=760px){.model-settings-grid{grid-template-columns:1fr}.model-settings-heading{margin-top:24px}}@font-face{font-family:DM Sans;src:url(/__design-system/dist/latest/fonts/dm-sans-latin.woff2)format("woff2");font-style:normal;font-weight:300 700;font-display:swap}@font-face{font-family:DM Mono;src:url(/__design-system/dist/latest/fonts/dm-mono-400-latin.woff2)format("woff2");font-style:normal;font-weight:400;font-display:swap}@font-face{font-family:DM Mono;src:url(/__design-system/dist/latest/fonts/dm-mono-500-latin.woff2)format("woff2");font-style:normal;font-weight:500;font-display:swap}@font-face{font-family:Playfair Display;src:url(/__design-system/dist/latest/fonts/playfair-display-latin.woff2)format("woff2");font-style:normal;font-weight:400 700;font-display:swap}:root{font-family:var(--font-body,"DM Sans", system-ui, sans-serif);color:var(--color-gray-800,#2d2520);background:var(--color-gray-50,#f9f8f6);font-synthesis:none;text-rendering:optimizelegibility}*{box-sizing:border-box;scrollbar-width:thin;scrollbar-color:#d2d2ca transparent}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background-color:#d2d2ca;background-clip:padding-box;border:2px solid #0000;border-radius:999px}::-webkit-scrollbar-thumb:hover{background-color:#b9b9b0}::-webkit-scrollbar-button{width:0;height:0;display:none}body{background:var(--color-gray-50,#f9f8f6);min-width:320px;min-height:100vh;margin:0}button,textarea,input{font:inherit}button{cursor:pointer;border:0}.app-shell.ffds-fullscreen-flex{flex-direction:row;height:100dvh;display:flex;overflow:hidden}.conversation-sidebar{background:#f1f1ed;border-right:1px solid #e7e7e2;flex-direction:column;flex:0 0 242px;min-width:0;min-height:0;padding:24px 14px 16px;transition:flex-basis .2s,padding .2s;display:flex;overflow:hidden}.brand{letter-spacing:-.04em;flex-shrink:0;align-items:center;gap:8px;padding:0 12px 26px;font-size:18px;font-weight:700;display:flex}.brand>span{color:var(--color-primary,#f2b600)}.brand-dot{width:22px;height:22px;color:var(--color-primary,#f2b600);display:block}.sidebar-action-button{color:#34352f;text-align:left;background:#e5e5df;border:0;border-radius:10px;flex-shrink:0;align-items:center;gap:10px;width:100%;min-height:43px;margin-bottom:7px;padding:12px;font-size:14px;font-weight:700;display:flex}.sidebar-action-button:hover,.sidebar-action-button:focus-visible{background:#deded8}.sidebar-action-button .action-icon{width:17px;height:17px;color:inherit;stroke-width:2.2px}.sidebar-action-plus{width:17px;height:17px;color:inherit;flex:0 0 17px;place-items:center;font-size:22px;line-height:17px;display:grid}.history-heading{color:#777870;flex:none;align-items:center;gap:5px;padding:30px 12px 11px;font-size:14px;font-weight:600;display:flex}.history-chevron{color:#92938b;font-size:18px;line-height:1;transform:translateY(-1px)}.history-list{overscroll-behavior:contain;flex:1 1 0;min-width:0;min-height:0;overflow-y:auto}.history-row{border-radius:9px;align-items:center;gap:2px;padding-right:4px;display:flex}.history-row:hover:not(.active){background:#e7e7e0}.history-row.active{background:var(--color-primary-10,#f2b6001a)}.history-item{color:#575850;text-align:left;background:0 0;border-radius:9px;align-items:center;gap:8px;width:100%;padding:10px 8px 10px 12px;font-size:13px;display:flex}.history-row .history-item{flex:1;min-width:0}.history-item .action-icon{width:15px;height:15px;color:var(--color-primary-dark,#c99200);stroke-width:1.7px;flex:0 0 15px}.history-item span:last-child{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.history-item.active{color:var(--color-primary-dark,#c99200);background:0 0;font-weight:600}.history-icon{color:var(--color-primary-dark,#c99200)}.history-expand-button{color:#85867e;background:0 0;border-radius:7px;flex:0 0 28px;place-items:center;width:28px;height:30px;display:grid}.history-expand-button .action-icon{stroke-width:1.8px;width:15px;height:15px}.history-expand-button:hover,.history-expand-button:focus-visible{color:#4d4e48;background:#deded8}.history-menu-button{color:#85867e;opacity:0;background:0 0;border-radius:7px;flex:0 0 28px;width:28px;height:30px}.history-row:hover .history-menu-button,.history-row.active .history-menu-button,.history-menu-button:focus-visible{opacity:1}.history-menu-button .action-icon{stroke-width:1.8px;width:15px;height:15px}.history-menu-button:hover,.history-menu-button:focus-visible{color:#4d4e48;background:#deded8}.history-annotations{border-left:1px solid #d8d8d1;margin:0 8px 8px 24px;padding:4px 0 4px 12px}.history-annotation-item,.history-no-annotations{color:#777870;text-align:left;width:100%;padding:7px 8px;font-size:11px;line-height:1.35;display:block}.history-annotation-item{text-overflow:ellipsis;white-space:nowrap;background:0 0;border-radius:6px;overflow:hidden}.history-annotation-item:hover,.history-annotation-item:focus-visible{color:#4d4e48;background:#e7e7e0}.history-no-annotations{color:#a0a098;font-style:italic}.sidebar-bottom{flex:none;margin-top:auto}.account-row{color:#565750;border-top:1px solid #deded8;align-items:center;gap:9px;padding:10px 8px;font-size:12px;display:flex}.avatar-small,.avatar-button{color:var(--color-primary-dark,#c99200);background:var(--color-primary-10,#f2b6001a);border-radius:50%;place-items:center;font-weight:600;display:grid}.avatar-small{flex:0 0 27px;width:27px;height:27px;font-size:11px}.account-identity{flex-direction:column;flex:1;min-width:0;display:flex}.account-name,.account-email{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.account-name{color:#43443e;font-weight:600}.account-name+.account-email{color:#85867e;font-size:10px}.account-row button{color:#777870;background:0 0;border-radius:7px;flex:0 0 28px;place-items:center;width:28px;height:28px;display:grid}.account-row button:hover{color:#4d4e48;background:#e4e4de}.account-row .action-icon{stroke-width:1.8px;width:16px;height:16px}.chat-column{--chat-gutter:clamp(18px, 3vw, 48px);--chat-content-width:1040px;flex-direction:column;flex:1;min-width:0;display:flex;position:relative}.chat-column.reader-shell{background:#eeece6}.about-page{flex:1;min-height:0;padding:20px clamp(22px,5vw,72px) 42px;overflow-y:auto}.about-page-inner{width:min(100%,920px);margin:0 auto}.about-back{color:#5b5c55;background:#fff;border:1px solid #deded8;border-radius:9px;align-items:center;gap:6px;padding:8px 11px;font-size:12px;display:inline-flex}.about-back .action-icon{width:15px;height:15px}.about-hero{text-align:center;max-width:690px;margin:46px auto 38px}.about-mark{width:38px;height:38px;color:var(--color-primary-dark,#c99200);margin-bottom:20px}.about-hero .eyebrow,.about-difference .eyebrow{color:var(--color-primary-dark,#c99200);letter-spacing:.12em;font-family:DM Mono,monospace;font-size:10px;font-weight:500}.about-hero h1{font-family:var(--font-display,"Playfair Display", Georgia, serif);letter-spacing:-.045em;margin:9px 0 12px;font-size:clamp(32px,4vw,46px)}.about-hero p{color:#85867e;max-width:570px;margin:0 auto;font-size:15px;line-height:1.7}.about-content-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;display:grid}.about-card{background:#fffffdc7;border:1px solid #e2e0d9;border-radius:14px;min-height:190px;padding:22px 24px;box-shadow:0 5px 18px #23231c09}.about-card-featured{background:linear-gradient(150deg,#fffdf4,#fff);flex-direction:column;grid-row:span 2;justify-content:center;min-height:100%;display:flex}.about-card-index{color:var(--color-primary-dark,#c99200);letter-spacing:.1em;font-family:DM Mono,monospace;font-size:10px}.about-card h2,.about-difference h2{font-family:var(--font-display,"Playfair Display", Georgia, serif);letter-spacing:-.025em;margin:11px 0 9px;font-size:21px}.about-card p,.about-difference p{color:#74756e;margin:0;font-size:13px;line-height:1.75}.about-card strong{color:#494a43}.about-difference{background:#f0efe9;border:1px solid #e2e0d9;border-radius:14px;grid-template-columns:.8fr 1.2fr;gap:30px;margin-top:16px;padding:24px;display:grid}.about-difference h2{margin-bottom:0}.about-difference p{align-self:center}.about-footnote{color:#999a92;text-align:center;margin:19px 4px 0;font-size:11px;line-height:1.6}.topbar{align-items:center;height:68px;padding:0 28px;display:flex}.topbar-spacer{flex:1}.mobile-brand{letter-spacing:-.04em;font-weight:700;display:none}.mobile-panel-button,.mobile-sidebar-close{color:#77786f;background:0 0;border-radius:8px;place-items:center;display:none}.mobile-panel-backdrop{display:none}.mobile-panel-button .action-icon,.mobile-sidebar-close .action-icon{width:18px;height:18px}.sidebar-collapse-toggle{color:#77786f;background:0 0;border-radius:8px;flex:0 0 30px;place-items:center;width:30px;height:30px;display:grid}.sidebar-collapse-toggle:hover,.sidebar-collapse-toggle:focus-visible{color:#4f5049;background:#e8e8e2}.sidebar-collapse-toggle .action-icon{stroke-width:1.8px;width:17px;height:17px}.login-button{color:#4d4e48;background:#fff;border:1px solid #dadad3;border-radius:10px;padding:9px 15px;font-size:13px}.avatar-button{width:32px;height:32px;font-size:13px}.pdf-reader{color:#373832;flex-direction:column;flex:1;min-width:0;min-height:0;display:flex}.reader-toolbar{background:#f8f7f2e0;border-bottom:1px solid #d3d1c8b3;justify-content:space-between;align-items:center;min-height:68px;padding:0 28px;display:flex}.reader-toolbar-leading,.reader-toolbar-center{align-items:center;display:flex}.reader-toolbar-leading{gap:12px;min-width:0}.reader-brand{gap:3px;min-width:0;display:grid}.reader-brand strong{color:#45463e;text-overflow:ellipsis;white-space:nowrap;max-width:min(34vw,420px);font-size:14px;font-weight:600;overflow:hidden}.reader-eyebrow{color:#9a9a91;letter-spacing:.14em;font-family:DM Mono;font-size:9px}.reader-toolbar-center{background:#e8e6df;border:1px solid #dedcd4;border-radius:9px;gap:3px;padding:3px}.reader-toolbar-center button{color:#888980;background:0 0;border-radius:6px;padding:7px 10px;font-family:DM Mono;font-size:9px}.reader-toolbar-center button:hover{color:#55564f}.reader-page-count{color:#94958c;white-space:nowrap;font-family:DM Mono;font-size:10px}.reader-empty{text-align:center;background:radial-gradient(at 50% 38%,#fffefa 0%,#faf9f3 58%,#f2f0e8 100%);border:1px dashed #d1cec2;border-radius:22px;flex-direction:column;flex:1;justify-content:center;align-items:center;min-height:0;margin:28px;padding:32px;transition:border-color .18s,background .18s,box-shadow .18s;display:flex;position:relative;overflow:hidden}.reader-empty.is-dragging{border-color:var(--color-primary-dark,#c99200);background:var(--color-primary-10,#f2b6001a)}.reader-empty-icon{color:#a87900;background:linear-gradient(145deg,#fff6d7,#f5e9bd);border:1px solid #c9920026;border-radius:18px;place-items:center;width:60px;height:60px;margin-bottom:20px;display:grid;box-shadow:0 8px 20px #614d0f14}.reader-empty-icon .action-icon{stroke-width:1.5px;width:25px;height:25px}.reader-empty h1{color:#30312c;font-family:var(--font-display,"Playfair Display", Georgia, serif);letter-spacing:-.045em;margin:0 0 10px;font-size:clamp(28px,3vw,40px)}.reader-empty p{color:#77786f;max-width:390px;margin:0 0 23px;font-size:14px;line-height:1.65}.reader-primary-button{background:var(--color-primary-dark,#c99200);color:#fff;border-radius:9px;padding:11px 16px;font-size:12px;box-shadow:0 5px 13px #5b3dcc2e}.reader-primary-button:hover,.reader-primary-button:focus-visible{background:var(--color-primary-dark,#c99200)}.reader-drop-hint{color:#898a81;margin-top:13px;font-family:DM Mono;font-size:10px}.reader-error{color:#8d4d4d;background:#fff2f2;border:1px solid #efcaca;border-radius:8px;max-width:min(460px,90%);margin-top:18px;padding:9px 11px;font-size:11px;line-height:1.4}.reader-body{flex:1;min-height:0;display:flex;position:relative}.reader-body-book{justify-content:center;align-items:stretch;overflow:hidden}.reader-book-page{flex:1;min-width:0;min-height:0;padding:20px 74px;display:flex}.reader-page-arrow{z-index:2;color:#716e65;background:#fffef9db;border:1px solid #d6d3ca;border-radius:50%;place-items:center;width:40px;height:40px;display:grid;position:absolute;top:50%;transform:translateY(-50%);box-shadow:0 4px 15px #1e1e1914}.reader-page-arrow:hover,.reader-page-arrow:focus-visible{border-color:var(--color-primary-20,#f2b60033);color:var(--color-primary-dark,#c99200);background:#fff}.reader-page-arrow:disabled{cursor:default;opacity:.25}.reader-page-arrow .action-icon{width:20px;height:20px}.reader-page-arrow-left{left:20px}.reader-page-arrow-right{right:20px}.reader-page-frame{justify-content:center;align-items:center;min-width:0;display:flex;position:relative}.reader-page-book{width:100%;height:100%;min-height:0}.reader-page-scroll{width:min(100%,900px);min-height:280px;margin:0 auto 26px;padding:26px 30px}.reader-page-frame canvas{opacity:0;background:#fff;max-width:100%;transition:opacity .18s;display:block;box-shadow:0 6px 22px #2827201f}.reader-page-frame canvas.is-rendered{opacity:1}.reader-page-loading{color:#a5a49b;font-family:DM Mono;font-size:9px;position:absolute}.reader-body-book .reader-page-frame{flex:1}.reader-body-scroll{padding:30px 28px 56px;display:block;overflow-y:auto}.reader-continuous{width:100%}.reader-loading{z-index:4;color:#fff;background:#373630bf;border-radius:7px;padding:6px 9px;font-family:DM Mono;font-size:9px;position:absolute;top:17px;left:50%;transform:translate(-50%)}.reader-error-floating{z-index:4;margin:0;position:absolute;top:14px;left:50%;transform:translate(-50%)}.messages-scroll{padding:18px var(--chat-gutter) 0;scroll-behavior:smooth;flex:1;position:relative;overflow-y:auto}.branch-origin{border:1px solid var(--color-primary-20,#f2b60033);background:var(--color-primary-10,#f2b6001a);max-width:1040px;color:var(--color-gray-500,#706860);border-radius:10px;margin:0 auto 24px;padding:10px 12px;font-size:11px}.branch-origin-label{color:var(--color-gray-500,#706860);letter-spacing:.06em;text-transform:uppercase;margin-bottom:7px;font-family:DM Mono;font-size:9px;display:block}.branch-origin-links{flex-wrap:wrap;gap:6px;display:flex}.branch-origin-link{background:var(--color-primary-10,#f2b6001a);max-width:100%;color:var(--color-primary-dark,#c99200);text-align:left;border-radius:6px;align-items:center;gap:5px;padding:5px 7px;font-size:11px;display:inline-flex}.branch-origin-link span:last-child{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.branch-origin-link:hover{background:var(--color-primary-10,#f2b6001a)}.chat-intro{text-align:center;max-width:1040px;margin:8vh auto 62px}.intro-spark{width:38px;height:38px;color:var(--color-primary-dark,#c99200);margin:0 auto 20px;display:block}.chat-intro h1{letter-spacing:-.055em;margin:0 0 12px;font-size:clamp(25px,3vw,36px)}.chat-intro p{color:#96978e;max-width:440px;margin:0 auto;font-size:14px;line-height:1.6}.message-list{width:100%;max-width:var(--chat-content-width);margin:0 auto}.message-row{gap:14px;margin:0 0 38px;display:flex}.message-user{justify-content:flex-end}.message-user .message-body{flex:0 auto;width:min(78%,680px);max-width:78%}.message-row.source-focus{background:var(--color-primary-10,#f2b6001a);box-shadow:0 0 0 2px var(--color-primary-20,#f2b60033);border-radius:12px;margin:-10px -10px 28px;padding:10px;transition:background .2s,box-shadow .2s}.message-icon{text-align:center;flex:0 0 30px;padding-top:2px}.ai-orb,.user-orb{border-radius:50%;place-items:center;width:29px;height:29px;display:inline-grid}.ai-orb{color:#14956e;background:#e5f9ef;border:1px solid #8dd5b5}.user-orb{border:1px solid var(--color-primary-20,#f2b60033);color:var(--color-primary-dark,#c99200);background:var(--color-primary-10,#f2b6001a)}.message-body{flex:1;min-width:0}.message-label{color:#a2a39a;text-transform:uppercase;letter-spacing:.08em;margin:4px 0 9px;font-family:DM Mono;font-size:10px}.message-user .message-content{color:#373832;font-size:16px;line-height:1.6}.message-user .message-label{display:none}.message-user .message-content{background:var(--color-gray-100,#f2f0ec);border-radius:18px;padding:13px 16px}.message-user .message-actions{justify-content:flex-end}.message-attachment{color:#565750;background:#fff;border:1px solid #e2e2df;border-radius:14px;align-items:center;gap:9px;width:fit-content;max-width:100%;margin:0 0 8px auto;padding:9px 13px;display:flex;box-shadow:0 1px 2px #1e1e1908}.message-attachment .action-icon{color:#168ff0;stroke-width:1.8px;flex:none;width:17px;height:17px}.message-attachment span{gap:2px;min-width:0;display:grid}.message-attachment strong{color:#22231f;text-overflow:ellipsis;white-space:nowrap;font-size:12px;font-weight:700;overflow:hidden}.message-attachment small{color:#777970;font-size:11px}.message-assistant .message-content{color:#292a26;font-size:15px;line-height:1.7}.message-thinking{color:#77786f;width:fit-content;font-size:15px;animation:1.6s ease-in-out infinite message-thinking-fade}.message-stopped{color:#77786f;font-size:14px}@keyframes message-thinking-fade{0%,to{opacity:1}50%{opacity:.3}}.message-error{color:#8c4545;font-size:14px;line-height:1.5}.message-error p{margin:0 0 10px}.message-error button{color:#8c4545;background:#f9e8e8;border-radius:7px;padding:7px 11px;font-size:12px}.message-error button:hover{background:#f4d7d7}@media (prefers-reduced-motion:reduce){.message-thinking{animation:none}}.message-content p,.message-content h1,.message-content h2,.message-content h3,.message-content h4,.message-content h5,.message-content h6,.message-content ul,.message-content ol,.message-content pre,.message-content table{margin:0 0 14px}.message-content p:last-child,.message-content ul:last-child,.message-content ol:last-child,.message-content pre:last-child{margin-bottom:0}.message-content h1,.message-content h2,.message-content h3,.message-content h4,.message-content h5,.message-content h6{color:#262721;letter-spacing:-.03em}.message-content ul,.message-content ol{padding-left:22px}.message-content hr{border:0;border-top:1px solid #d8d8d1;margin:20px 0}.message-content .markdown-table-scroll{-webkit-overflow-scrolling:touch;width:100%;min-width:0;max-width:100%;margin:0 0 14px;overflow:auto hidden}.markdown-math-display{text-align:center;max-width:100%;margin:12px 0;display:block;overflow:auto hidden}.markdown-math-inline{vertical-align:middle}.message-content .markdown-table-scroll:focus-visible{outline:2px solid var(--color-primary-dark,#c99200);outline-offset:3px;border-radius:4px}.message-content table{border-collapse:collapse;width:max-content;min-width:100%;font-size:.92em;line-height:1.5}.message-content th,.message-content td{text-align:left;vertical-align:top;border:1px solid #deded6;padding:8px 10px}.message-content th{color:#3f4039;background:#f0f0ea;font-weight:700}.message-content td{background:#fffffd73}.message-content strong{font-weight:700}.message-content em{font-style:italic}.message-content code{color:var(--color-primary-dark,#c99200);background:#ecece6;border-radius:4px;padding:2px 5px;font-family:DM Mono,monospace;font-size:.9em}.message-content pre{color:#f4f4ed;background:#292a26;border-radius:9px;padding:12px 14px;line-height:1.5;overflow-x:auto}.message-content pre code{color:inherit;background:0 0;padding:0}.message-content a{color:var(--color-primary-dark,#c99200);text-underline-offset:2px;text-decoration:underline}.message-actions{opacity:.8;flex-wrap:wrap;align-items:center;gap:3px;margin-top:17px;display:flex}.message-actions button{color:#8a8b83;background:0 0;border-radius:6px;padding:5px 7px;font-size:13px}.message-actions button:not(.branch-action):not(.bulletfy-action){place-items:center;width:30px;height:30px;display:grid}.message-actions .action-icon{stroke-width:1.9px;width:17px;height:17px}.message-actions button:hover{color:#595a53;background:#edede8}.message-actions .branch-action,.message-actions .quick-action{color:var(--color-primary-dark,#c99200);align-items:center;gap:6px;margin-left:5px;font-size:11px;display:inline-flex}.message-actions .branch-action .action-icon{width:15px;height:15px}.message-actions .quick-action{color:#17906d}.message-actions .bulletfy-action{align-items:center;gap:6px;margin-left:5px;font-size:11px;display:inline-flex}.message-actions .bulletfy-action:disabled{cursor:default;opacity:.45}.message-edit-form{gap:10px;display:grid}.message-edit-form textarea{border:1px solid var(--color-primary-20,#f2b60033);color:#30312b;resize:vertical;background:#fff;border-radius:10px;outline:0;width:100%;min-height:72px;max-height:min(70vh,720px);padding:11px 12px;line-height:1.55;overflow-y:auto}.message-edit-form textarea:focus{border-color:var(--color-primary-dark,#c99200);box-shadow:0 0 0 3px var(--color-primary-10,#f2b6001a)}.message-edit-actions{justify-content:flex-end;gap:7px;display:flex}.message-edit-actions button{color:#77786f;background:0 0;border-radius:7px;padding:7px 11px;font-size:12px}.message-edit-actions button:last-child{background:var(--color-primary-dark,#c99200);color:#fff}.message-edit-actions button:disabled{cursor:default;opacity:.5}.source-links{flex-wrap:wrap;gap:6px;margin-top:15px;display:flex}.source-link{border:1px solid var(--color-primary-20,#f2b60033);background:var(--color-primary-10,#f2b6001a);color:var(--color-primary-dark,#c99200);text-align:left;border-radius:7px;align-items:center;gap:5px;padding:6px 9px;font-size:11px;display:inline-flex}.source-link b{color:var(--color-gray-500,#706860);font-weight:500}.source-link:hover{border-color:var(--color-primary-20,#f2b60033);background:var(--color-primary-10,#f2b6001a)}.inline-source-link{border-bottom:1px dashed var(--color-primary-dark,#c99200);background:var(--color-primary-10,#f2b6001a);color:var(--color-primary-dark,#c99200);font:inherit;line-height:inherit;padding:0 2px}.inline-source-link:hover{background:var(--color-primary-10,#f2b6001a);border-bottom-style:solid}.chat-bottom-space{height:110px}.composer-wrap{z-index:5;padding:0 var(--chat-gutter);pointer-events:none;justify-content:center;margin:0;display:flex;position:absolute;bottom:20px;left:0;right:0}.composer{width:100%;max-width:var(--chat-content-width);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);pointer-events:auto;transform:translateX(var(--composer-align-x,0px));background:#fffffdf5;border:1px solid #deded8;border-radius:16px;padding:12px 14px 10px;transition:border-color .18s,box-shadow .18s;position:relative;box-shadow:0 8px 30px #20201914}.composer.expanded{border-color:var(--color-primary-20,#f2b60033);box-shadow:0 12px 34px #20201921}.composer-input-row{align-items:flex-end;gap:9px;display:flex}.composer textarea{resize:none;color:#30312b;background:0 0;border:0;outline:0;flex:1;width:100%;min-width:0;min-height:29px;max-height:150px;line-height:1.5;display:block;overflow-y:hidden}.composer textarea.has-expand{padding-right:34px}.composer.expanded textarea{max-height:min(62vh,520px)}.composer-expand{color:#77786f;background:0 0;border-radius:7px;place-items:center;width:27px;height:27px;margin-right:1rem;display:grid;position:absolute;top:10px;right:12px}.composer-expand:hover{color:#4f5049;background:#efeee9}.composer-expand:disabled{opacity:.45;cursor:default}.composer-expand .action-icon{stroke-width:1.8px;width:15px;height:15px}.composer textarea::placeholder{color:#aaa9a2}.composer-footer{align-items:center;min-height:31px;display:flex}.composer-plus{color:#fff;background:0 0;flex:none;padding:0 5px;font-size:25px;line-height:1}.composer-hint{color:#a0a098;margin-left:auto;margin-right:12px;font-family:DM Mono;font-size:10px}.provider-picker{max-width:min(245px,42%);margin-right:10px;display:block}.provider-picker select{color:#77786f;text-overflow:ellipsis;cursor:pointer;background:0 0;border:0;border-radius:6px;outline:0;max-width:100%;padding:4px 20px 4px 8px;font-family:DM Mono;font-size:10px;overflow:hidden}.provider-picker select:hover,.provider-picker select:focus{color:#53544d;background:#f0efe9}.provider-picker select:disabled{cursor:default;opacity:.55}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;padding:0;position:absolute;overflow:hidden}.composer .send-button{background:var(--color-primary-dark,#c99200);color:#fff;border-radius:50%;flex:0 0 32px;place-items:center;width:32px;height:32px;min-height:0;padding:0;font-size:20px;line-height:1;display:grid}.send-button .action-icon{stroke-width:2px;width:18px;height:18px}.send-button:disabled{color:#a5a59e;cursor:default;background:#d9d8d2}.send-spinner{border:2px solid #ffffff73;border-top-color:#fff;border-radius:50%;width:13px;height:13px;animation:.75s linear infinite send-spin}@keyframes send-spin{to{transform:rotate(360deg)}}.context-cards{flex-wrap:wrap;gap:8px;margin-bottom:10px;display:flex}.context-chip{border:1px solid var(--color-primary-20,#f2b60033);background:var(--color-primary-10,#f2b6001a);color:#625f71;border-radius:10px;align-items:flex-start;gap:5px;max-width:280px;padding:8px 9px;font-size:11px;line-height:1.35;display:flex}.context-chip span:nth-child(2){max-height:43px;overflow:hidden}.chip-quote{color:var(--color-primary-dark,#c99200);font-size:17px;line-height:12px}.context-chip button{color:#96909f;background:0 0;margin-left:auto;padding:0 2px}.attachment-chip{color:#4d6b85;background:#f1f8ff;border:1px solid #cfe2f5;border-radius:9px;align-items:center;gap:7px;max-width:min(100%,360px);margin-bottom:10px;padding:7px 9px;font-size:11px;display:inline-flex}.attachment-chip .action-icon{flex:none;width:15px;height:15px}.attachment-chip span{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.attachment-chip button{color:#8198ad;background:0 0;padding:0 2px;font-size:16px;line-height:1}.attachment-chip button:hover{color:#49677f}.branch-navigator{width:var(--branch-width,270px);flex:0 0 var(--branch-width,270px);background:#f4f4f0;border-left:1px solid #e7e7e2;flex-direction:column;min-width:220px;max-width:520px;transition:flex-basis .2s,width .2s,min-width .2s;display:flex;position:relative}.branch-resize-handle{z-index:3;cursor:col-resize;touch-action:none;width:10px;position:absolute;top:0;bottom:0;left:-5px}.branch-resize-handle:after{content:"";opacity:0;background:#d7d7d0;border-radius:2px;width:2px;height:42px;transition:opacity .15s,background .15s;position:absolute;top:50%;left:4px;transform:translateY(-50%)}.branch-resize-handle:hover:after,.branch-resize-handle:focus-visible:after,.branch-resize-handle.is-resizing:after{background:var(--color-primary-dark,#c99200);opacity:1}.branch-resize-handle:focus-visible{outline:0}.branch-navigator.navigator-expanded{z-index:40;border-left:0;flex-basis:auto;width:auto;min-width:0;max-width:none;position:fixed;inset:0;box-shadow:0 0 40px #1e1e1929}.branch-navigator.navigator-expanded.with-history{left:242px}.branch-head{border-bottom:1px solid #e4e4de;justify-content:space-between;align-items:center;padding:26px 17px 18px;display:flex}.branch-head-actions{align-items:center;gap:6px;display:flex}.eyebrow{color:#a5a59c;letter-spacing:.14em;font-family:DM Mono;font-size:9px}.branch-head h2{letter-spacing:-.03em;margin:5px 0 0;font-size:16px}.graph-toggle{width:32px;height:32px;color:var(--color-primary-dark,#c99200);background:0 0;border:0;border-radius:0;place-items:center;font-size:17px;display:grid}.graph-toggle .action-icon{stroke-width:1.8px;width:16px;height:16px}.graph-toggle:hover,.graph-toggle:focus-visible{background:0 0}.branch-tree{flex:1;padding:16px 10px;overflow-y:auto}.branch-item-row{border-radius:8px;align-items:center;min-width:0;display:flex}.branch-item-row:hover{background:#e9e9e3}.branch-item-row.active{background:var(--color-primary-10,#f2b6001a)}.branch-item{color:#676860;text-align:left;background:0 0;border-radius:8px;align-items:center;gap:8px;width:100%;min-width:0;min-height:35px;font-size:12px;display:flex}.branch-item:hover,.branch-item-row.active .branch-item{background:0 0}.branch-item-row.active .branch-item{color:var(--color-primary-dark,#c99200);font-weight:600}.branch-node{border-radius:50%;flex:0 0 8px;width:8px;height:8px}.main-node{border:2px solid var(--color-primary-dark,#c99200);background:#fff}.child-node{background:#bcbcb3}.branch-name{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.current-pill{color:var(--color-primary-dark,#c99200);text-transform:uppercase;margin-left:auto;padding-right:8px;font-family:DM Mono;font-size:8px;font-weight:400}.branch-delete-button{color:#9b9c93;background:0 0;border-radius:7px;flex:0 0 28px;place-items:center;width:28px;height:30px;display:grid}.branch-delete-button:hover,.branch-delete-button:focus-visible{color:#9b4f4f;background:#e8e8e2}.branch-delete-button .action-icon{stroke-width:1.8px;width:15px;height:15px}.navigator-footer{border-top:1px solid #e4e4de;padding:14px 16px 20px}.tree-legend{color:#94958b;margin-bottom:12px;font-size:10px;display:block}.legend-dot{border-radius:50%;width:7px;height:7px;margin:0 4px 0 7px;display:inline-block}.legend-dot:first-child{margin-left:0}.main-dot{border:1px solid var(--color-primary-dark,#c99200);background:#fff}.child-dot{background:#bcbcb3}.open-graph-link{color:var(--color-primary-dark,#c99200);background:0 0;padding:0;font-size:11px}.open-graph-link:hover{text-decoration:underline}.graph-panel{flex-direction:column;flex:1;min-height:0;display:flex;overflow:hidden}.graph-canvas{cursor:grab;touch-action:none;background:radial-gradient(#deded8 1px,#0000 1px) 0 0/17px 17px;flex:1;min-height:400px;position:relative;overflow:hidden}.graph-canvas.dragging{cursor:grabbing}.graph-stage{z-index:1;transform-origin:50% 0;width:100%;min-height:100%;transition:transform .12s ease-out;position:absolute;top:0;left:0}.graph-edges{z-index:0;pointer-events:none;width:100%;height:100%;position:absolute;inset:0;overflow:visible}.graph-edge{fill:none;stroke:var(--color-primary-dark,#c99200);stroke-width:2px;vector-effect:non-scaling-stroke}.graph-controls{z-index:2;background:#ffffffe6;border:1px solid #deded6;border-radius:8px;align-items:center;gap:3px;padding:3px;display:flex;position:absolute;top:10px;right:9px;box-shadow:0 3px 10px #1e1e140f}.graph-controls button{width:23px;height:23px;color:var(--color-primary-dark,#c99200);background:0 0;border-radius:5px}.graph-controls button:hover{background:var(--color-primary-10,#f2b6001a)}.graph-controls span{color:#999a92;text-align:center;min-width:31px;font-family:DM Mono;font-size:8px}.graph-branch{width:220px;position:absolute;transform:translate(-50%)}.graph-branch.current .graph-node{border-color:var(--color-primary-dark,#c99200);box-shadow:0 0 0 3px var(--color-primary-20,#f2b60033)}.graph-node{color:#6b6c65;text-align:left;background:#ffffffeb;border:1px solid #d8d8d1;border-radius:8px;align-items:center;gap:6px;width:100%;min-height:35px;margin-bottom:9px;padding:6px 8px;font-size:9px;line-height:1.25;display:flex;overflow:hidden}.graph-node.branch-node{color:#4d4e47;height:53px;min-height:53px;padding:8px 10px;font-size:11px}.graph-node span:last-child{-webkit-line-clamp:2;-webkit-box-orient:vertical;display:-webkit-box;overflow:hidden}.graph-branch-label{text-overflow:ellipsis;display:-webkit-box}.graph-branch-label small{color:#9a9b92;letter-spacing:.08em;margin-bottom:3px;font-family:DM Mono;font-size:8px;display:block}.graph-node-icon{width:17px;height:17px;color:var(--color-primary-dark,#c99200);background:var(--color-primary-10,#f2b6001a);border-radius:50%;flex:0 0 17px;place-items:center;display:grid}.graph-branch:not(:first-of-type) .graph-node-icon{color:#168a68;background:#e5f8ee}.you-are-here{background:var(--color-primary-dark,#c99200);color:#fff;white-space:nowrap;border-radius:10px;padding:3px 8px;font-size:8px;position:absolute;top:-18px;left:50%;transform:translate(-50%)}.graph-legend{color:#92938b;border-top:1px solid #dfdfd8;padding:14px 12px;font-size:10px;line-height:1.8}.graph-legend span{white-space:nowrap;margin-right:5px}.graph-legend small{color:#aaa9a1;line-height:1.4;display:block}.question-dot{background:var(--color-primary-20,#f2b60033)}.answer-dot{background:#7fe0bc}.path-line{border-top:2px solid var(--color-primary-dark,#c99200);vertical-align:middle;width:12px;display:inline-block}.selection-menu{z-index:6;background:#272822;border:1px solid #d8d8d1;border-radius:9px;flex-wrap:wrap;gap:3px;padding:4px;display:flex;position:absolute;bottom:calc(100% + 6px);left:12px;right:12px;box-shadow:0 8px 20px #0000002e}.selection-menu button{color:#fff;white-space:nowrap;background:0 0;border-radius:6px;align-items:center;gap:5px;padding:7px 9px;font-size:11px;display:inline-flex}.selection-menu button:hover{background:#4b4d45}.selection-menu .action-icon{stroke-width:1.9px;width:14px;height:14px}.quick-popover{z-index:25;background:#fbfffd;border:1px solid #cde8dc;border-radius:14px;width:min(330px,100vw - 30px);padding:13px;position:fixed;bottom:106px;right:28%;box-shadow:0 12px 32px #1b4d3624}.quick-popover-head{color:#148365;justify-content:space-between;align-items:center;font-size:12px;font-weight:600;display:flex}.quick-popover-head button{color:#8da69a;background:0 0;font-size:19px}.quick-pulse{color:#fff;background:#2aaa83;border-radius:50%;place-items:center;width:19px;height:19px;margin-right:5px;font-size:12px;display:inline-grid}.quick-popover-context{color:#718077;background:#eef8f2;border-radius:8px;max-height:60px;margin:10px 0;padding:8px;font-size:11px;line-height:1.4;overflow:hidden}.composer.quick-mode{border-color:#8fd2b3;box-shadow:0 8px 30px #1b805b1f}.quick-composer-context{color:#718077;background:#eef8f2;border-radius:9px;margin-bottom:10px;padding:8px 9px;font-size:11px;line-height:1.4}.quick-composer-head{color:#148365;justify-content:space-between;align-items:center;margin-bottom:6px;font-size:11px;font-weight:600;display:flex}.quick-composer-head button{color:#8da69a;background:0 0;border-radius:4px;padding:0 3px;font-size:16px;line-height:16px}.quick-composer-head button:hover,.quick-composer-head button:focus-visible{color:#4f806d;background:#dcefe5}.quick-composer-text{max-height:45px;overflow:hidden}.quick-composer-foot{color:#7e9e8f;margin-top:8px;font-family:DM Mono;font-size:9px}.composer.quick-mode textarea{color:#214d3c}.composer.quick-mode .composer-hint{color:#4c9b79}.composer.annotation-mode{background:#fffef1fa;border-color:#e4c96e;box-shadow:0 8px 30px #9d7e1e24}.annotation-composer-context{color:#817445;background:#fff8d8;border-radius:9px;margin-bottom:10px;padding:8px 9px;font-size:11px;line-height:1.4}.annotation-composer-head{color:#917622;justify-content:space-between;align-items:center;margin-bottom:6px;font-size:11px;font-weight:600;display:flex}.annotation-composer-head button{color:#b2a16b;background:0 0;border-radius:4px;padding:0 3px;font-size:16px;line-height:16px}.annotation-composer-head button:hover,.annotation-composer-head button:focus-visible{color:#806822;background:#f4e9b8}.annotation-composer-text{max-height:45px;overflow:hidden}.annotation-pulse{color:#fffdf0;background:#c4a73f;border-radius:50%;place-items:center;width:19px;height:19px;margin-right:5px;font-size:12px;display:inline-grid}.annotation-composer-foot{color:#a18c4f;margin-top:8px;font-family:DM Mono;font-size:9px}.composer.annotation-mode textarea{color:#5c4d1c}.composer.annotation-mode .composer-hint{color:#9a812b}.quick-popover form{align-items:flex-end;gap:7px;display:flex}.quick-popover textarea{resize:none;color:#333;border:1px solid #dfe9e2;border-radius:8px;outline:0;flex:1;min-width:0;padding:8px;font-size:12px}.quick-popover form button{color:#fff;background:#199873;border-radius:8px;padding:8px 10px;font-size:11px}.quick-popover form button:disabled{opacity:.45}.quick-popover-foot{color:#96a69e;margin-top:9px;font-family:DM Mono;font-size:9px}.quick-history{max-height:180px;margin-bottom:9px;overflow:auto}.quick-card{background:#f8fffb;border:1px solid #cfe8da;border-radius:10px;margin:10px 0 16px;padding:10px 11px}.quick-card-title{color:#178564;text-transform:uppercase;letter-spacing:.04em;align-items:center;font-family:DM Mono;font-size:9px;display:flex}.quick-card-title>span{color:#fff;background:#42b58c;border-radius:50%;place-items:center;width:16px;height:16px;margin-right:4px;font-family:DM Sans;font-size:11px;display:inline-grid}.quick-card-title small{color:#93aa9d;text-transform:none;letter-spacing:0;margin-left:6px;font-family:DM Sans}.quick-card-title button{color:#93aa9d;background:0 0;border-radius:4px;place-items:center;width:22px;height:22px;margin-left:auto;padding:0;display:grid}.quick-card-title button .action-icon{stroke-width:1.8px;width:14px;height:14px}.quick-card-title button:hover,.quick-card-title button:focus-visible{color:#4f8d73;background:#e2f3e9}.quick-card-title button:disabled{cursor:default;opacity:.45}.quick-card-prompt{color:#65766d;margin-top:8px;font-size:11px}.quick-card-answer{color:#2b4438;margin-top:8px;font-size:12px;line-height:1.5}.quick-card-answer p,.quick-card-answer ul{margin:0 0 4px}.quick-card-answer ul{padding-left:17px}.annotation-card{color:#5d5129;background:#fff9d9;border:1px solid #eadb99;border-radius:4px 10px 10px;margin:10px 0 16px;padding:11px 12px;transform:rotate(-.25deg);box-shadow:2px 3px #a6852a1f}.annotation-card.annotation-focus{animation:1.6s annotation-focus}@keyframes annotation-focus{0%,to{box-shadow:2px 3px #a6852a1f}35%{box-shadow:0 0 0 4px #e8cf67,2px 3px #a6852a1f}}.annotation-card-title{color:#927520;text-transform:uppercase;letter-spacing:.04em;align-items:center;font-family:DM Mono;font-size:9px;display:flex}.annotation-card-title>span{color:#fffdf0;background:#c4a33b;border-radius:50%;place-items:center;width:16px;height:16px;margin-right:5px;font-family:DM Sans;font-size:11px;display:inline-grid}.annotation-card-title button{color:#b3a267;background:0 0;border-radius:4px;place-items:center;width:22px;height:22px;margin-left:auto;padding:0;display:grid}.annotation-card-title button .action-icon{stroke-width:1.8px;width:14px;height:14px}.annotation-card-title button:hover,.annotation-card-title button:focus-visible{color:#806822;background:#f3e7ae}.annotation-card-title button:disabled{cursor:default;opacity:.45}.annotation-card-content{color:#51451f;white-space:pre-wrap;overflow-wrap:anywhere;margin-top:8px;font-size:12px;line-height:1.5}.annotation-card-source{color:#9b8950;border-top:1px solid #aa8b3038;margin-top:9px;padding-top:7px;font-size:10px;line-height:1.4}.notice{z-index:12;color:#69695f;background:#fffef8;border:1px solid #dfddd4;border-radius:9px;align-items:center;gap:10px;max-width:min(520px,90%);padding:10px 12px;font-size:12px;display:flex;position:absolute;top:76px;left:50%;transform:translate(-50%);box-shadow:0 7px 20px #1e1e1414}.notice button{color:#aaa99f;background:0 0}.notice-setup{color:#765b29;background:#fff8e9;border-color:#edcf9a}.notice-error{color:#884a4a;background:#fff2f2;border-color:#f1c7c7}.modal-backdrop{z-index:50;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);background:#1c1c1747;place-items:center;padding:20px;display:grid;position:fixed;inset:0}.auth-modal{background:#fffffc;border:1px solid #e2e2da;border-radius:18px;width:min(390px,100%);padding:36px;position:relative;box-shadow:0 18px 50px #1f1f182b}.modal-close{color:#999a92;background:0 0;font-size:20px;position:absolute;top:14px;right:15px}.auth-spark{width:32px;height:32px;color:var(--color-primary-dark,#c99200);display:block}.auth-modal h2{letter-spacing:-.05em;margin:14px 0 7px;font-size:24px}.auth-modal p{color:#8e8f87;margin:0 0 24px;font-size:13px}.auth-modal form{gap:14px;display:grid}.auth-modal label{color:#5f6059;gap:6px;font-size:12px;display:grid}.auth-modal input{color:#333;border:1px solid #deded6;border-radius:8px;outline:0;padding:10px 11px}.auth-modal input:focus{border-color:var(--color-primary-dark,#c99200);box-shadow:0 0 0 3px var(--color-primary-10,#f2b6001a)}.auth-submit{background:var(--color-primary-dark,#c99200);color:#fff;border-radius:9px;margin-top:6px;padding:11px;font-size:13px}.auth-switch{color:var(--color-primary-dark,#c99200);background:0 0;margin:18px auto 0;font-size:11px;display:block}.quick-card-title small{font-size:9px}.quick-answer-skeleton{gap:7px;margin-top:10px;display:grid}.quick-answer-skeleton i{background:linear-gradient(90deg,#d9eee3 25%,#eef9f3 50%,#d9eee3 75%) 0 0/200% 100%;border-radius:5px;height:9px;animation:1.2s ease-in-out infinite quick-skeleton;display:block}.quick-answer-skeleton i:nth-child(2){width:88%;animation-delay:.12s}.quick-answer-skeleton i:nth-child(3){width:62%;animation-delay:.24s}.quick-card-error{color:#8c5757;margin-top:9px;font-size:11px;line-height:1.4}.quick-card-error p{margin:0 0 8px}.quick-card-error button{color:#fff;background:#d76e6e;border-radius:7px;padding:6px 9px;font-size:10px}.quick-card-error button:hover{background:#c65d5d}.quick-card-error button:disabled{opacity:.55;cursor:default}@keyframes quick-skeleton{0%,to{background-position:100% 0}50%{background-position:0 0}}.loading-screen{color:#94948c;place-items:center;gap:10px;height:100vh;font-size:13px;display:grid}.brand-mark{width:42px;height:42px;color:var(--color-primary-dark,#c99200)}@media (height<=600px){.conversation-sidebar{padding-block:12px}.conversation-sidebar .brand{padding-bottom:12px}.sidebar-action-button{min-height:36px;margin-bottom:4px;padding-block:8px}.history-heading{padding-block:12px 8px}}@media (width<=1050px){.conversation-sidebar{flex-basis:205px}.branch-navigator{flex-basis:230px;width:230px}.branch-navigator.navigator-expanded.with-history{left:205px}}@media (width<=780px){.chat-column{--chat-gutter:16px}.mobile-panel-button{width:34px;height:34px;display:grid}.mobile-panel-button:hover,.mobile-sidebar-close:hover{color:#4f5049;background:#e8e8e2}.mobile-sidebar-close{width:34px;height:34px;margin-left:auto;display:none}.mobile-panel-backdrop{z-index:44;background:#1e1e1940;border:0;padding:0;display:block;position:fixed;inset:0}.conversation-sidebar{z-index:45;visibility:hidden;flex-basis:auto;width:100vw;max-width:none;transition:transform .2s,visibility 0s linear .2s;display:flex;position:fixed;inset:0 auto 0 0;transform:translate(-100%);box-shadow:12px 0 35px #1e1e1924}.conversation-sidebar.mobile-open{visibility:visible;transition-delay:0s;transform:translate(0)}.conversation-sidebar .mobile-sidebar-close{display:grid}.branch-navigator{z-index:45;visibility:hidden;flex-basis:auto;width:100vw;min-width:0;max-width:none;transition:transform .2s,visibility 0s linear .2s;position:fixed;inset:0;transform:translate(100%);box-shadow:-12px 0 35px #1e1e1924}.branch-navigator.mobile-open{visibility:visible;transition-delay:0s;transform:translate(0)}.branch-navigator .mobile-sidebar-close{display:grid}.branch-navigator .branch-head-actions>.graph-toggle:first-child{display:none}.branch-delete-button{opacity:1}.branch-resize-handle{display:none}.branch-navigator.navigator-expanded.with-history{left:0}.composer-wrap{bottom:max(10px, env(safe-area-inset-bottom))}.topbar{gap:8px;height:54px;padding:0 16px}.mobile-brand{display:block}.chat-intro{margin-top:5vh}.chat-intro h1{font-size:26px}.message-row{gap:9px}.message-actions{flex-wrap:wrap}.quick-popover{bottom:110px;right:15px}}@media (width<=680px){.about-page{padding:14px 17px 30px}.about-hero{margin:34px auto 27px}.about-content-grid{grid-template-columns:1fr}.about-card-featured{grid-row:auto;min-height:0}.about-card{min-height:0;padding:20px}.about-difference{grid-template-columns:1fr;gap:14px;padding:20px}}@media (width>=781px){.conversation-sidebar.sidebar-collapsed{flex-basis:64px;padding:24px 4px 16px;overflow:hidden}.conversation-sidebar.sidebar-collapsed .brand{justify-content:center;gap:0;padding:0;position:relative}.conversation-sidebar.sidebar-collapsed .brand-dot{transition:opacity .15s}.conversation-sidebar.sidebar-collapsed .sidebar-collapse-toggle{z-index:1;opacity:0;background:#f1f1ed;transition:opacity .15s,background .15s;position:absolute;top:0;left:50%;transform:translate(-50%)}.conversation-sidebar.sidebar-collapsed .brand:hover .brand-dot,.conversation-sidebar.sidebar-collapsed .brand:focus-within .brand-dot{opacity:0}.conversation-sidebar.sidebar-collapsed .brand:hover .sidebar-collapse-toggle,.conversation-sidebar.sidebar-collapsed .brand:focus-within .sidebar-collapse-toggle{opacity:1}.conversation-sidebar.sidebar-collapsed .brand>span,.conversation-sidebar.sidebar-collapsed .mobile-sidebar-close,.conversation-sidebar.sidebar-collapsed .new-reader-button,.conversation-sidebar.sidebar-collapsed .new-challenge-button,.conversation-sidebar.sidebar-collapsed .new-chat-button,.conversation-sidebar.sidebar-collapsed .about-nav-button,.conversation-sidebar.sidebar-collapsed .history-heading,.conversation-sidebar.sidebar-collapsed .history-list,.conversation-sidebar.sidebar-collapsed .sidebar-bottom{display:none}.branch-navigator.sidebar-collapsed{flex-basis:64px;min-width:64px;max-width:64px;overflow:hidden;width:64px!important}.branch-navigator.sidebar-collapsed .branch-resize-handle,.branch-navigator.sidebar-collapsed .branch-head>div:first-child,.branch-navigator.sidebar-collapsed .branch-head-actions>.graph-toggle,.branch-navigator.sidebar-collapsed .branch-head-actions>.mobile-sidebar-close,.branch-navigator.sidebar-collapsed .branch-tree,.branch-navigator.sidebar-collapsed .graph-panel,.branch-navigator.sidebar-collapsed .navigator-footer{display:none}.branch-navigator.sidebar-collapsed .branch-head{border-bottom:0;justify-content:center;padding:18px 8px}}@media (width<=780px){.sidebar-collapse-toggle{display:none}.reader-toolbar{gap:8px;min-height:58px;padding:0 14px}.reader-toolbar-center{z-index:3;order:3;position:absolute;top:66px;left:50%;transform:translate(-50%)}.reader-page-count{display:none}.reader-brand strong{max-width:32vw}.reader-empty{margin:16px}.reader-book-page{padding:56px 38px 18px}.reader-page-arrow-left{left:8px}.reader-page-arrow-right{right:8px}.reader-body-scroll{padding:18px 8px 40px}.reader-page-scroll{padding:18px 8px}}@media (width<=560px){.message-icon{flex-basis:24px}.message-user .message-body{width:100%;max-width:100%}.message-assistant .message-content,.message-user .message-content{font-size:14px}}h1,h2,h3,h4,h5,h6{font-family:var(--font-display,"Playfair Display", Georgia, serif)}:focus-visible{outline:2px solid var(--color-primary-dark,#c99200);outline-offset:2px}::highlight(nodus-mark){color:inherit;background-color:#ffde3f75}.selection-menu .marker-swatch{opacity:.85;background:#f3d653;border-radius:2px;width:13px;height:10px}.selection-menu button:disabled{opacity:.6;cursor:wait}[data-theme=dark]{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--color-gray-50:#171816;--color-gray-800:#e8e8e2}[data-theme=dark] body,[data-theme=dark] .chat-column,[data-theme=dark] .about-page,[data-theme=dark] .model-settings-page,[data-theme=dark] .challenge-page,[data-theme=dark] .conversation-main{color:#e8e8e2;background:#171816}[data-theme=dark] .conversation-sidebar{background:#20211e;border-color:#383a34}[data-theme=dark] .sidebar-action-button,[data-theme=dark] .history-row:hover:not(.active),[data-theme=dark] .history-annotation-item:hover,[data-theme=dark] .history-annotation-item:focus-visible{color:#e5e5de;background:#30312c}[data-theme=dark] .sidebar-action-button:hover,[data-theme=dark] .sidebar-action-button:focus-visible{color:#f0f0e9;background:#3b3d36}[data-theme=dark] .history-item,[data-theme=dark] .account-row,[data-theme=dark] .account-name{color:#d0d1c9}[data-theme=dark] .account-email,[data-theme=dark] .account-name+.account-email,[data-theme=dark] .history-heading{color:#a3a49b}[data-theme=dark] .message-stopped{color:#a9aaa1}[data-theme=dark] .account-row{border-color:#3b3c36}[data-theme=dark] .account-row button:hover,[data-theme=dark] .history-expand-button:hover,[data-theme=dark] .history-menu-button:hover{color:#f0f0e9;background:#393a34}[data-theme=dark] .chat-column.reader-shell{background:#1e201d}[data-theme=dark] .topbar,[data-theme=dark] .reader-toolbar,[data-theme=dark] .branch-sidebar,[data-theme=dark] .branch-panel,[data-theme=dark] .challenge-card,[data-theme=dark] .model-settings-form,[data-theme=dark] .model-settings-list,[data-theme=dark] .auth-modal,[data-theme=dark] .about-card,[data-theme=dark] .composer,[data-theme=dark] .message-card{color:#e8e8e2;background:#22231f;border-color:#3b3d36}[data-theme=dark] .message-content,[data-theme=dark] .model-settings-heading h1,[data-theme=dark] .about-page h1,[data-theme=dark] .about-page h2,[data-theme=dark] .challenge-page h1,[data-theme=dark] .branch-title{color:#e8e8e2}[data-theme=dark] .message-user .message-content{color:#e8e8e2;background:#30312c}[data-theme=dark] .message-content code,[data-theme=dark] pre{color:#e5d59d;background:#30312c}[data-theme=dark] input,[data-theme=dark] textarea,[data-theme=dark] select,[data-theme=dark] .model-settings-form input,[data-theme=dark] .model-settings-form select{color:#e8e8e2;background:#191a17;border-color:#494b43}[data-theme=dark] .composer.quick-mode textarea{color:#fff}[data-theme=dark] .composer.annotation-mode textarea{color:#fff4cf;caret-color:#fff4cf}[data-theme=dark] .reader-brand strong{color:#e8e8e2}[data-theme=dark] .reader-eyebrow{color:#a5a69e}[data-theme=dark] .reader-empty{background:radial-gradient(at 50% 38%,#292a25 0%,#252621 58%,#20211e 100%);border-color:#484a41;box-shadow:inset 0 1px #ffffff06}[data-theme=dark] .reader-empty.is-dragging{background:#302d20;border-color:#d4a000;box-shadow:inset 0 0 0 1px #d4a0001f}[data-theme=dark] .reader-empty-icon{color:#efbd2f;background:linear-gradient(145deg,#39331f,#302b1d);border-color:#efbe2f2e;box-shadow:0 8px 22px #0003}[data-theme=dark] .reader-empty h1{color:#f0efe8}[data-theme=dark] .reader-empty p{color:#b0b1a8}[data-theme=dark] .reader-drop-hint{color:#92938a}[data-theme=dark] .about-back,[data-theme=dark] .model-settings-cancel,[data-theme=dark] .model-settings-item-actions button,[data-theme=dark] .model-settings-openai .model-settings-actions button{color:#dedfd8;background:#2c2d28;border-color:#474941}[data-theme=dark] .graph-toggle{color:#dedfd8;background:0 0;border-color:#0000}[data-theme=dark] .modal-backdrop{background:#0000009e}[data-theme=dark] .model-settings-heading p,[data-theme=dark] .about-hero p,[data-theme=dark] .model-settings-list>p,[data-theme=dark] .model-settings-item span{color:#a9aaa1}[data-theme=dark] .about-difference{background:#22231f;border-color:#3b3d36}[data-theme=dark] .about-difference h2{color:#f0f0e9}[data-theme=dark] .about-difference p{color:#b8b9b0}[data-theme=dark] .model-settings-item,[data-theme=dark] .history-annotations{border-color:#3b3d36}[data-theme=dark] .message-content h1,[data-theme=dark] .message-content h2,[data-theme=dark] .message-content h3,[data-theme=dark] .message-content h4,[data-theme=dark] .message-content h5,[data-theme=dark] .message-content h6{color:#e8e8e2}[data-theme=dark] .message-content th,[data-theme=dark] .message-content td{color:#dedfd8;border-color:#494b43}[data-theme=dark] .message-content th{color:#f0f0e9;background:#343630}[data-theme=dark] .message-content td{background:#22231f}[data-theme=dark] .branch-navigator{color:#e8e8e2;background:#20211e;border-color:#383a34}[data-theme=dark] .branch-head{border-color:#3b3d36}[data-theme=dark] .branch-head h2{color:#e8e8e2}[data-theme=dark] .branch-navigator .eyebrow{color:#a9aaa1}[data-theme=dark] .branch-item-row:hover{background:#30312c}[data-theme=dark] .branch-item-row.active{background:#39331e}[data-theme=dark] .branch-item{color:#c9cbc2}[data-theme=dark] .branch-item-row.active .branch-item{color:#f0c64e}[data-theme=dark] .main-node{background:#20211e}[data-theme=dark] .child-node{background:#777970}[data-theme=dark] .branch-delete-button:hover,[data-theme=dark] .branch-delete-button:focus-visible{background:#393a34}[data-theme=dark] .navigator-footer{border-color:#3b3d36}[data-theme=dark] .graph-canvas{background:radial-gradient(#3b3d36 1px,#0000 1px) 0 0/17px 17px}[data-theme=dark] .graph-controls{background:#22231ff0;border-color:#474941}[data-theme=dark] .graph-node{color:#dedfd8;background:#22231ff5;border-color:#494b43}[data-theme=dark] .graph-node.branch-node{color:#e8e8e2}[data-theme=dark] .graph-branch-label small,[data-theme=dark] .graph-legend,[data-theme=dark] .tree-legend{color:#a9aaa1}.reader-shell .composer-wrap{pointer-events:auto;flex:none;margin:12px 28px 18px;padding:0;position:relative;inset:auto;transform:none}.reader-shell .composer{width:100%;max-width:none}.reader-shell .pdf-reader{position:relative}.reader-shell .reader-toolbar{flex-wrap:wrap;gap:10px;padding:12px 24px}.reader-shell .reader-toolbar-center{position:static;transform:none}.chat-column.reader-shell.reading-mode{z-index:60;width:100%;height:100dvh;position:fixed;inset:0}.chat-column.reader-shell:fullscreen{width:100%;height:100%}.reader-reading-mode-button{color:#67685f;white-space:nowrap;background:#fffefa;border:1px solid #dedcd4;border-radius:7px;align-items:center;gap:7px;padding:8px 10px;font-size:11px;display:inline-flex}.reader-reading-mode-button:hover,.reader-reading-mode-button[aria-pressed=true]{color:#8f6b00;background:#f7f0d7}.reader-reading-mode-button .action-icon{width:16px;height:16px}.pdf-reading-controls{background:#f8f7f2;border-bottom:1px solid #dedcd4;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;padding:10px 24px;display:flex}.pdf-reading-controls>div,.pdf-reading-controls form,.pdf-reading-controls label{align-items:center;gap:7px;display:flex}.pdf-reading-controls button{color:#76766e;background:0 0;border-radius:5px;padding:6px 8px;font-size:11px}.pdf-reading-controls button:disabled{opacity:.3;cursor:default}.pdf-reading-controls .action-icon{width:16px;height:16px}.pdf-reading-controls label,.pdf-reading-controls form>span{color:#77786f;font-size:11px}.pdf-reading-controls input{color:#4e4f48;text-align:center;background:#fff;border:1px solid #dedcd4;border-radius:4px;width:58px;padding:5px}.pdf-reading-body{overscroll-behavior:contain;flex:1;min-height:0;padding:24px 30px 50px;scroll-padding:20px;overflow:auto}.pdf-html-page{color:#34352f;overflow-wrap:anywhere;background:#fffefa;width:min(100%,850px);min-height:300px;margin:0 auto 26px;padding:36px 44px;font:18px/1.7 Georgia,Times New Roman,serif;position:relative;box-shadow:0 4px 20px #2827200e}.pdf-source-card{margin:10px 0 16px;display:flow-root}.pdf-source-card>.quick-card,.pdf-source-card>.annotation-card,.pdf-source-card>.pdf-branch-link{margin:0}.pdf-source-connectors{pointer-events:none;width:100%;height:100%;position:absolute;inset:0;overflow:visible}.pdf-source-connector{fill:none;stroke-width:1.5px;stroke-linecap:round;stroke-linejoin:round;opacity:.8}.pdf-source-connector-question{stroke:#178564}.pdf-source-connector-annotation{stroke:#a98b2c}.pdf-source-connector-branch{stroke:var(--color-primary-dark,#c99200)}.pdf-html-page-scroll{min-height:600px}.pdf-html-page p{margin:0 0 .9em}.pdf-html-page .pdf-answer-line{align-items:baseline;gap:.7em;margin-bottom:.35em;display:flex}.pdf-html-page h2{margin:1.35em 0 .7em;font:600 1.15em/1.45 DM Sans,Arial,sans-serif}.pdf-text-block:first-child h2{margin-top:0}.pdf-text-small{font-size:.88em}.pdf-document-callout{border:1px solid #b1b1a3;border-radius:3px;margin:1.2em 0;padding:.9em 1em}.pdf-document-callout>:first-child>:first-child{margin-top:0}.pdf-document-callout>:last-child>:last-child{margin-bottom:0}.pdf-list-line{padding-left:2.3em;position:relative}.pdf-list-marker{line-height:inherit;position:absolute;top:0;left:0}.pdf-document-columns{grid-template-columns:repeat(var(--pdf-columns), minmax(0, 1fr));gap:24px;display:grid}.pdf-document-table{margin:1em 0;overflow-x:auto}.pdf-document-table table{border-collapse:collapse;width:100%;font:.88em/1.5 DM Sans,Arial,sans-serif}.pdf-document-table td{vertical-align:top;border:1px solid #c6c5ba;min-width:75px;padding:9px 11px}.pdf-document-table p{margin:0}.pdf-document-table .quick-card,.pdf-document-table .annotation-card{min-width:200px}.pdf-html-page code{font-family:DM Mono,Consolas,monospace;font-size:.85em}.pdf-html-page .pdf-document-code{color:inherit;text-align:left;white-space:pre;overflow-wrap:normal;tab-size:4;background:#f3f3f1;border-radius:4px;margin:0 0 1.2em;padding:14px 16px;font:13px/1.6 DM Mono,Consolas,monospace;overflow-x:auto}.pdf-html-page .pdf-document-code code{color:inherit;font:inherit;background:0 0;padding:0}.pdf-document-figure{text-align:center;margin:1em auto}.pdf-document-figure img{max-width:100%;height:auto}.pdf-document-figure>span{color:#92938a;font:12px/1.5 DM Sans,Arial,sans-serif}.pdf-scan-preview{color:#77786f;margin-bottom:20px;font:12px/1.5 DM Sans,Arial,sans-serif}.pdf-scan-preview summary{cursor:pointer}.pdf-page-number{text-align:center;color:#9a9b91;margin-top:30px;font:11px DM Mono,monospace}.pdf-page-loading,.pdf-ocr-notice{color:#828378;font:12px/1.6 DM Sans,Arial,sans-serif}.pdf-ocr-notice{width:min(100%,850px);margin:0 auto 18px}.pdf-html-page .pdf-ocr-notice{background:#faf7e8;border:1px solid #e3debd;padding:10px}.pdf-html-page .reader-error{max-width:none;margin:0}.pdf-html-page .reader-error button{background:#fff;border:1px solid #d9b4b4;border-radius:4px;margin-top:10px;padding:6px 10px;display:block}.pdf-branch-link{margin:8px 0 16px;font:11px/1.5 DM Sans,Arial,sans-serif;display:flex}.pdf-original-page{max-width:900px;margin:0 auto}.pdf-original-page canvas{width:100%;height:auto;display:block}[data-theme=dark] .pdf-reading-controls{background:#22231f;border-color:#3b3d36}[data-theme=dark] .pdf-reading-controls button{color:#b7b8af}[data-theme=dark] .pdf-reading-controls label,[data-theme=dark] .pdf-reading-controls form>span{color:#a9aaa1}[data-theme=dark] .pdf-reading-controls input{color:#e8e8e2;background:#191a17;border-color:#494b43}[data-theme=dark] .reader-reading-mode-button{color:#dedfd8;background:#2c2d28;border-color:#474941}[data-theme=dark] .reader-reading-mode-button:hover,[data-theme=dark] .reader-reading-mode-button[aria-pressed=true]{color:#f0d781;background:#39331e;border-color:#685a2d}[data-theme=dark] .pdf-html-page{color:#dedfd8;background:#22231f;box-shadow:0 4px 20px #0000003d}[data-theme=dark] .pdf-html-page h2{color:#f0f0e9}[data-theme=dark] .pdf-document-callout{border-color:#5a5c51}[data-theme=dark] .pdf-document-table td{border-color:#494b43}[data-theme=dark] .pdf-html-page .pdf-document-code{color:#e5d59d;background:#30312c}[data-theme=dark] .pdf-document-figure>span,[data-theme=dark] .pdf-scan-preview,[data-theme=dark] .pdf-page-number,[data-theme=dark] .pdf-page-loading,[data-theme=dark] .pdf-ocr-notice{color:#a9aaa1}[data-theme=dark] .pdf-html-page .pdf-ocr-notice{background:#302d20;border-color:#5a5236}[data-theme=dark] .pdf-html-page .reader-error button{color:#f0d5d5;background:#302321;border-color:#684747}[data-theme=dark] .pdf-html-page .pdf-branch-link{color:#f0d781}@media (width<=780px){.reader-shell .reader-toolbar{padding:10px 12px}.reader-shell .reader-toolbar-center{order:initial}.reader-reading-mode-button span{display:none}.reader-shell .composer-wrap{margin:8px 8px 12px}.pdf-reading-controls{padding:8px 12px}.pdf-reading-body{padding:14px 9px 30px}.pdf-html-page{padding:24px 18px 24px 34px;font-size:17px}.pdf-document-columns{grid-template-columns:1fr}.pdf-document-callout{padding:.75em}}.challenges-page{flex:1;min-height:0;padding:10px clamp(18px,5vw,72px) 64px;overflow-y:auto}.challenges-inner{max-width:860px;margin:0 auto}.challenges-hero{margin:40px 0 28px}.challenges-eyebrow,.challenge-card-head>span{color:#b58100;letter-spacing:.1em;font-family:DM Mono,monospace;font-size:11px;font-weight:500}.challenges-hero h1{letter-spacing:-.04em;margin:10px 0 12px;font-family:Playfair Display,Georgia,serif;font-size:clamp(34px,5vw,50px)}.challenges-hero p{color:#74756e;max-width:650px;margin:0;font-size:15px;line-height:1.7}.challenges-form,.challenge-card,.challenges-coverage{background:#fffefa;border:1px solid #e2e0d9;border-radius:14px;box-shadow:0 5px 18px #23231c09}.challenges-form{flex-direction:column;gap:15px;padding:clamp(20px,4vw,30px);display:flex}.challenges-form>label,.challenges-form legend{color:#414239;font-size:14px;font-weight:700}.challenges-form textarea{color:#32332e;resize:vertical;background:#fff;border:1px solid #dcd9ce;border-radius:10px;width:100%;padding:14px;line-height:1.55}.challenges-form>select{color:#32332e;background:#fff;border:1px solid #dcd9ce;border-radius:9px;width:100%;padding:11px 12px}.challenges-form>select:focus-visible,.challenges-form textarea:focus-visible{outline-offset:1px;outline:2px solid #d7a900}.challenges-form fieldset{border:0;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:0;padding:0;display:grid}.challenges-form legend{grid-column:1/-1;margin-bottom:10px}.challenges-form fieldset label{cursor:pointer;border:1px solid #e2e0d9;border-radius:10px;grid-template-columns:20px 1fr;gap:4px 8px;padding:15px;display:grid}.challenges-form fieldset label.selected{background:#fff9e8;border-color:#d5a600}.challenges-form fieldset input{accent-color:#b88700;grid-row:span 2;align-self:start;margin:3px 0 0}.challenges-form fieldset strong{font-size:13px}.challenges-form fieldset span{color:#777870;font-size:12px;line-height:1.5}.challenge-primary,.challenge-reveal{color:#2d270c;background:#e5b300;border-radius:9px;align-self:flex-start;padding:11px 16px;font-size:13px;font-weight:700}.challenge-primary:hover,.challenge-reveal:hover{background:#d6a500}.challenge-primary:disabled,.challenge-reveal:disabled{cursor:wait;opacity:.65}.challenges-coverage{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-bottom:20px;padding:19px 22px;display:grid}.challenges-input-concepts{grid-column:1/-1}.challenges-coverage strong{font-size:13px}.challenges-coverage p{color:#6c6d65;margin:7px 0 0;font-size:13px;line-height:1.5}.challenge-card{margin-bottom:20px;padding:clamp(20px,4vw,30px)}.challenge-card-head h2{margin:8px 0 20px;font-family:Playfair Display,Georgia,serif;font-size:clamp(22px,3vw,29px)}.challenge-markdown{color:#383933;overflow-wrap:anywhere;font-size:14px;line-height:1.7}.challenge-markdown p,.challenge-markdown ul,.challenge-markdown ol{margin:0 0 13px}.challenge-markdown h2,.challenge-markdown h3,.challenge-markdown h4{margin:20px 0 8px}.challenge-markdown pre{background:#f2f1ed;border-radius:8px;padding:14px;overflow:auto}.challenge-concepts{color:#686961;border-top:1px solid #eceae1;margin:20px 0;padding-top:14px;font-size:12px}.challenge-reference{background:#fff9e9;border:1px solid #e4d39e;border-radius:10px;margin-top:22px;padding:22px}.challenge-reference h3{margin:0 0 5px;font-family:Playfair Display,Georgia,serif;font-size:23px}.challenge-reference-note{color:#757266;margin:0 0 20px;font-size:12px}.challenge-error{color:#9c3727;background:#fff0ec;border-radius:8px;padding:12px 15px;font-size:13px}[data-theme=dark] .challenges-hero h1,[data-theme=dark] .challenge-card-head h2,[data-theme=dark] .challenge-reference h3{color:#f0f0e9}[data-theme=dark] .challenges-hero p,[data-theme=dark] .challenge-reference-note{color:#b8b9b0}[data-theme=dark] .challenges-coverage{color:#e8e8e2;background:#22231f;border-color:#3b3d36}[data-theme=dark] .challenges-coverage strong{color:#e8e8e2}[data-theme=dark] .challenges-coverage p{color:#c3c5bc}[data-theme=dark] .challenge-card{color:#e8e8e2;background:#22231f;border-color:#3b3d36}[data-theme=dark] .challenges-eyebrow,[data-theme=dark] .challenge-card-head>span{color:#efc84a}[data-theme=dark] .challenge-markdown{color:#d3d4cc}[data-theme=dark] .challenge-markdown h2,[data-theme=dark] .challenge-markdown h3,[data-theme=dark] .challenge-markdown h4,[data-theme=dark] .challenge-markdown strong{color:#f0f0e9}[data-theme=dark] .challenge-markdown pre{color:#e5d59d;background:#191a17}[data-theme=dark] .challenge-concepts{color:#c3c5bc;border-color:#3b3d36}[data-theme=dark] .challenge-reference{background:#302b1d;border-color:#685823}[data-theme=dark] .challenge-reference .challenge-markdown{color:#dedfd8}[data-theme=dark] .challenge-error{color:#ffb4a6;background:#3a211d}[data-theme=dark] .challenges-form{color:#e8e8e2;background:#22231f;border-color:#3b3d36}[data-theme=dark] .challenges-form>label,[data-theme=dark] .challenges-form legend{color:#e8e8e2}[data-theme=dark] .challenges-form textarea,[data-theme=dark] .challenges-form>select{color:#e8e8e2;background:#191a17;border-color:#494b43}[data-theme=dark] .challenges-form textarea::placeholder{color:#92938a}[data-theme=dark] .challenges-form fieldset label{color:#e8e8e2;background:#272822;border-color:#41433b}[data-theme=dark] .challenges-form fieldset label.selected{background:#302b1d;border-color:#c99b17}[data-theme=dark] .challenges-form fieldset span{color:#b0b1a8}@media (width<=640px){.challenges-hero{margin-top:24px}.challenges-form fieldset,.challenges-coverage{grid-template-columns:1fr}}:root{--nodus-button-primary:#8f6900;--nodus-button-primary-hover:#765600;--nodus-button-secondary:#f0eee7;--nodus-button-secondary-hover:#e7e3d7;--nodus-button-border:#dedbd1;--nodus-button-text:#4b4c44;--nodus-focus-ring:#b4890061}button{font:inherit;transition:background-color .16s,border-color .16s,color .16s,box-shadow .16s,transform .16s}button:focus-visible{outline:2px solid var(--nodus-focus-ring);outline-offset:2px}button:disabled{cursor:not-allowed}.action-icon{vertical-align:middle;flex:none;width:17px;height:17px;display:inline-block}.ffds-btn-primary,.challenge-primary,.reader-primary-button,.auth-submit,.login-button,.sidebar-action-button.new-chat-button,.message-edit-actions button:last-child:not(:disabled){background:var(--nodus-button-primary);color:#fff;border:1px solid #0000;border-radius:11px;justify-content:center;align-items:center;gap:8px;font-weight:650;display:inline-flex;box-shadow:0 2px 4px #3a2b001f}.ffds-btn-primary:hover:not(:disabled),.challenge-primary:hover:not(:disabled),.reader-primary-button:hover:not(:disabled),.auth-submit:hover:not(:disabled),.login-button:hover:not(:disabled),.sidebar-action-button.new-chat-button:hover:not(:disabled),.message-edit-actions button:last-child:hover:not(:disabled){background:var(--nodus-button-primary-hover);transform:translateY(-1px);box-shadow:0 3px 8px #3a2b0033}.ffds-btn-primary:active:not(:disabled),.challenge-primary:active:not(:disabled),.reader-primary-button:active:not(:disabled),.auth-submit:active:not(:disabled),.login-button:active:not(:disabled),.sidebar-action-button.new-chat-button:active:not(:disabled),.message-edit-actions button:last-child:active:not(:disabled){box-shadow:none;transform:translateY(0)}.challenge-primary,.reader-primary-button{min-height:42px;padding:10px 16px;font-size:13px}.auth-submit{min-height:43px;padding:11px 16px;font-size:13px}.login-button{min-height:38px;padding:8px 14px;font-size:13px}.sidebar-action-button.new-chat-button{min-height:43px;box-shadow:none;justify-content:flex-start;margin-bottom:9px;padding:11px 12px}.sidebar-action-button.new-chat-button .action-icon{color:#fff}.composer .send-button{border:0;border-radius:50%;box-shadow:0 2px 6px #3b2d0033}.composer .send-button:hover:not(:disabled){filter:brightness(.92);transform:translateY(-1px)}.composer .send-button:disabled{color:#85867e;box-shadow:none;background:#d7d6cf}.composer.quick-mode .send-button{background:#168568}.composer.annotation-mode .send-button{background:#9c7d24}.sidebar-action-button:not(.new-chat-button){color:#53544d;background:0 0;border:1px solid #0000;border-radius:11px;font-weight:600}.sidebar-action-button:not(.new-chat-button):hover,.sidebar-action-button:not(.new-chat-button):focus-visible{color:#393a33;background:#e8e5dc}.sidebar-action-button:not(.new-chat-button) .action-icon{color:#927000;stroke-width:1.8px}.about-back,.model-settings-cancel,.model-settings-item-actions button,.model-settings-openai .model-settings-actions button,.challenge-reveal,.reader-reading-mode-button{border:1px solid var(--nodus-button-border);background:var(--nodus-button-secondary);min-height:36px;color:var(--nodus-button-text);border-radius:10px;justify-content:center;align-items:center;gap:7px;padding:7px 11px;font-size:12px;font-weight:600;display:inline-flex}.about-back:hover,.model-settings-cancel:hover,.model-settings-item-actions button:hover:not(:disabled),.model-settings-openai .model-settings-actions button:hover:not(:disabled),.challenge-reveal:hover:not(:disabled),.reader-reading-mode-button:hover:not(:disabled){color:#604a0a;background:#e9e3d1;border-color:#d5c99f}.challenge-reveal{align-self:flex-start}.model-settings-openai .model-settings-actions a{align-items:center;gap:5px;display:inline-flex}.model-settings-openai .model-settings-actions a .action-icon,.model-settings-item-actions button .action-icon{width:14px;height:14px}.model-settings-item-actions button:last-child:hover:not(:disabled){color:#a04436;background:#fff0ed;border-color:#e4b8b0}.model-settings-actions{gap:9px}.graph-toggle,.settings-button,.theme-button,.logout-button,.sidebar-collapse-toggle,.mobile-sidebar-close,.history-expand-button,.history-menu-button,.branch-delete-button,.composer-expand,.composer-plus,.modal-close,.notice button,.graph-controls button,.message-actions button:not(.branch-action),.quick-composer-head button,.annotation-composer-head button,.quick-card-title button,.annotation-card-title button{background:0 0;border:0;border-radius:9px;place-items:center;display:inline-grid}.message-actions button.bulletfy-action{display:inline-flex}.mobile-sidebar-close{display:none}.graph-toggle:hover,.settings-button:hover,.theme-button:hover,.logout-button:hover,.sidebar-collapse-toggle:hover,.mobile-panel-button:hover,.mobile-sidebar-close:hover,.history-expand-button:hover,.history-menu-button:hover,.branch-delete-button:hover,.composer-expand:hover,.notice button:hover,.graph-controls button:hover,.message-actions button:not(.branch-action):hover,.quick-composer-head button:hover,.annotation-composer-head button:hover,.quick-card-title button:hover,.annotation-card-title button:hover{color:#5f4c13;background:#8770301c}.graph-toggle:focus-visible,.settings-button:focus-visible,.theme-button:focus-visible,.logout-button:focus-visible,.sidebar-collapse-toggle:focus-visible,.mobile-panel-button:focus-visible,.mobile-sidebar-close:focus-visible,.history-expand-button:focus-visible,.history-menu-button:focus-visible,.branch-delete-button:focus-visible,.composer-expand:focus-visible,.composer-plus:focus-visible,.modal-close:focus-visible,.notice button:focus-visible,.graph-controls button:focus-visible,.message-actions button:not(.branch-action):focus-visible{outline-offset:1px}.composer-plus{color:#595a52;width:34px;height:34px;padding:0}.composer-plus .action-icon{width:18px;height:18px}.account-row button{flex-basis:30px;width:30px;height:30px}.graph-toggle{color:#92938a;width:32px;height:32px}.graph-controls button{color:#68695f;width:28px;height:28px}.graph-controls button .action-icon{width:15px;height:15px}.message-actions button:not(.branch-action){color:#75766e;border-radius:9px}.message-actions button:not(.branch-action):hover{color:#34352f}.message-actions button.copy-copied,.message-actions button.copy-copied:hover{color:#16845f;background:#e3f4eb}.message-actions button.copy-error,.message-actions button.copy-error:hover{color:#a04436;background:#fff0ed}.branch-delete-button:hover,.branch-delete-button:focus-visible,.model-settings-item-actions button:last-child:hover:not(:disabled){color:#a04436}.reader-toolbar-center button{border-radius:8px;justify-content:center;align-items:center;gap:6px;min-height:32px;display:inline-flex}.reader-toolbar-center button .action-icon{width:14px;height:14px}.reader-toolbar-center button.active{color:#705500;background:#fffdfa;box-shadow:0 1px 3px #302a161f}.pdf-reading-controls button{border-radius:8px;justify-content:center;align-items:center;gap:6px;display:inline-flex}.pdf-reading-controls button.active{color:#66500c;background:#ece8da}.pdf-reading-controls button .action-icon{width:15px;height:15px}.open-graph-link{align-items:center;gap:5px;display:inline-flex}.open-graph-link .action-icon,.quick-pulse .action-icon,.annotation-pulse .action-icon{width:13px;height:13px}.quick-card-title>span .action-icon,.annotation-card-title>span .action-icon{width:12px;height:12px}.source-link>.action-icon,.branch-origin-link>.action-icon{width:14px;height:14px}.quick-composer-head button .action-icon,.annotation-composer-head button .action-icon,.quick-card-title button .action-icon,.annotation-card-title button .action-icon,.notice button .action-icon,.modal-close .action-icon{width:16px;height:16px}.context-chip button .action-icon,.attachment-chip button .action-icon{width:15px;height:15px}.auth-submit{width:100%}.auth-switch{border-radius:8px;min-height:34px;padding:6px 10px}.auth-switch:hover{color:#765600;background:#8f690017}[data-theme=dark]{--nodus-button-primary:#c59619;--nodus-button-primary-hover:#d4a92e;--nodus-button-secondary:#2c2d28;--nodus-button-secondary-hover:#383a32;--nodus-button-border:#474940;--nodus-button-text:#e3e4dc;--nodus-focus-ring:#e9be438c}[data-theme=dark] .ffds-btn-primary,[data-theme=dark] .challenge-primary,[data-theme=dark] .reader-primary-button,[data-theme=dark] .auth-submit,[data-theme=dark] .login-button,[data-theme=dark] .sidebar-action-button.new-chat-button{background:var(--nodus-button-primary);color:#211a08}[data-theme=dark] .ffds-btn-primary:hover:not(:disabled),[data-theme=dark] .challenge-primary:hover:not(:disabled),[data-theme=dark] .reader-primary-button:hover:not(:disabled),[data-theme=dark] .auth-submit:hover:not(:disabled),[data-theme=dark] .login-button:hover:not(:disabled),[data-theme=dark] .sidebar-action-button.new-chat-button:hover:not(:disabled){background:var(--nodus-button-primary-hover);color:#211a08}[data-theme=dark] .sidebar-action-button:not(.new-chat-button){color:#d0d1c9}[data-theme=dark] .sidebar-action-button:not(.new-chat-button):hover,[data-theme=dark] .sidebar-action-button:not(.new-chat-button):focus-visible{color:#f0f0e9;background:#30312c}[data-theme=dark] .sidebar-action-button:not(.new-chat-button) .action-icon{color:#e2bd53}[data-theme=dark] .about-back:hover,[data-theme=dark] .model-settings-cancel:hover,[data-theme=dark] .model-settings-item-actions button:hover:not(:disabled),[data-theme=dark] .model-settings-openai .model-settings-actions button:hover:not(:disabled),[data-theme=dark] .challenge-reveal:hover:not(:disabled),[data-theme=dark] .reader-reading-mode-button:hover:not(:disabled){color:#f0d781;background:#393629;border-color:#716038}[data-theme=dark] .model-settings-item-actions button:last-child:hover:not(:disabled){color:#ffb4a6;background:#3b2826;border-color:#794742}[data-theme=dark] .graph-toggle,[data-theme=dark] .settings-button,[data-theme=dark] .theme-button,[data-theme=dark] .logout-button,[data-theme=dark] .sidebar-collapse-toggle,[data-theme=dark] .mobile-panel-button,[data-theme=dark] .mobile-sidebar-close,[data-theme=dark] .history-expand-button,[data-theme=dark] .history-menu-button,[data-theme=dark] .branch-delete-button,[data-theme=dark] .composer-expand,[data-theme=dark] .notice button,[data-theme=dark] .graph-controls button,[data-theme=dark] .message-actions button:not(.branch-action){color:#b7b8af}[data-theme=dark] .graph-toggle:hover,[data-theme=dark] .settings-button:hover,[data-theme=dark] .theme-button:hover,[data-theme=dark] .logout-button:hover,[data-theme=dark] .sidebar-collapse-toggle:hover,[data-theme=dark] .mobile-panel-button:hover,[data-theme=dark] .mobile-sidebar-close:hover,[data-theme=dark] .history-expand-button:hover,[data-theme=dark] .history-menu-button:hover,[data-theme=dark] .branch-delete-button:hover,[data-theme=dark] .composer-expand:hover,[data-theme=dark] .notice button:hover,[data-theme=dark] .graph-controls button:hover,[data-theme=dark] .message-actions button:not(.branch-action):hover{color:#f1d779;background:#35362f}[data-theme=dark] .message-actions button.copy-copied,[data-theme=dark] .message-actions button.copy-copied:hover{color:#70d7ac;background:#193a30}[data-theme=dark] .message-actions button.copy-error,[data-theme=dark] .message-actions button.copy-error:hover{color:#ffb4a6;background:#3b2826}[data-theme=dark] .composer-plus,[data-theme=dark] .composer.quick-mode .send-button,[data-theme=dark] .composer.annotation-mode .send-button{color:#fff}[data-theme=dark] .sidebar-action-button.new-chat-button .action-icon{color:#211a08}[data-theme=dark] .composer .send-button:disabled{color:#a5a69e;background:#44463f}[data-theme=dark] .reader-toolbar-center button.active{color:#f0d781;background:#393a33}[data-theme=dark] .pdf-reading-controls button.active{color:#f0d781;background:#38372e}[data-theme=dark] .auth-switch:hover{color:#f1d779;background:#e5be481f}@media (prefers-reduced-motion:reduce){button{transition:none}}