:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;--bg:var(--lightningcss-light,#f4f6fb)var(--lightningcss-dark,#0b0f19);--surface:var(--lightningcss-light,#fff)var(--lightningcss-dark,#162032);--ink:var(--lightningcss-light,#141824)var(--lightningcss-dark,#f1f5f9);--muted:var(--lightningcss-light,#475569)var(--lightningcss-dark,#94a3b8);--plum:var(--sara-sapphire-600,var(--lightningcss-light,#224fa8)var(--lightningcss-dark,#5882e6));--border:var(--lightningcss-light,#1a367a1f)var(--lightningcss-dark,#94b9ff24);--tint:var(--lightningcss-light,#f2f6ff)var(--lightningcss-dark,#141e33);font-family:var(--sara-font-ui,Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif);color:var(--ink);background:var(--bg);font-size:16px}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial}}*{box-sizing:border-box}[hidden]{display:none!important}body{margin:0}a{color:var(--plum);text-underline-offset:4px}button,input,textarea,select{font:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer;border:1px solid var(--border);background:var(--surface);min-height:44px;color:var(--ink);border-radius:8px;padding:10px 15px}button:hover:not(:disabled){background:var(--tint)}button:disabled{opacity:.55;cursor:not-allowed}:focus-visible{outline:2.5px solid var(--sara-cyan-500,#1cb3cf);outline-offset:2px}.primary{background:var(--plum);border-color:var(--plum);color:#fff;justify-content:space-between;align-items:center;gap:16px;font-weight:600;display:inline-flex}.primary:hover:not(:disabled){background:var(--sara-sapphire-700,#1a367a);border-color:var(--sara-sapphire-700,#1a367a)}.quiet{color:var(--plum);background:0 0;border-color:#0000}.outline{border-color:var(--border);color:var(--plum)}h1,h2,h3{letter-spacing:-.025em;font-weight:650;line-height:1.3}h1{overflow-wrap:anywhere;margin:0 0 8px;font-size:clamp(25px,2.5vw,32px)}h2{margin:0 0 10px;font-size:22px}h3{margin:0 0 10px;font-size:20px}p{margin:0 0 14px;line-height:1.65}.muted{color:var(--muted)}.small{font-size:13px}.eyebrow{letter-spacing:.09em;color:var(--muted);margin:0 0 10px;font-size:10px;font-weight:650}.panel{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:28px}.topbar{border-bottom:1px solid var(--border);background:var(--surface);align-items:center;gap:18px;min-height:76px;padding:12px max(24px,50vw - 640px);display:flex}.brand{background:var(--plum);width:108px;height:38px;display:block;-webkit-mask:url(/sara.svg) 50%/contain no-repeat;mask:url(/sara.svg) 50%/contain no-repeat}.preview-badge{color:var(--plum);background:var(--tint);white-space:nowrap;border-radius:5px;padding:5px 8px;font-size:11px}.version-return{align-items:center;gap:8px;min-height:44px;margin-left:auto;font-size:12px;text-decoration:none;display:flex}.account{border-left:1px solid var(--border);align-items:center;gap:12px;padding-left:18px;font-size:12px;display:flex}.account-name{text-overflow:ellipsis;white-space:nowrap;max-width:150px;overflow:hidden}.account .quiet{padding:8px}.workspace-nav{border-bottom:1px solid var(--border);background:#fff;align-items:stretch;gap:28px;min-height:50px;padding:0 max(24px,50vw - 640px);display:flex}.workspace-nav>*{min-height:50px;color:var(--muted);border-bottom:2px solid #0000;align-items:center;gap:7px;font-size:13px;text-decoration:none;display:inline-flex}.workspace-nav [aria-current]{color:var(--plum);border-bottom-color:var(--plum);font-weight:650}.workspace-nav a:hover{color:var(--plum)}.workspace{max-width:1328px;margin:auto;padding:30px 24px 64px}.page-heading{margin:0 0 26px}.page-heading .muted{margin:0;font-size:14px}.page-heading h1{scroll-margin-top:24px}.welcome{max-width:660px;margin:48px auto;padding:clamp(24px,5vw,52px)}.welcome h1{margin-bottom:18px}.welcome-actions{flex-wrap:wrap;gap:12px;margin:26px 0 20px;display:flex}.source-picker{margin:0 auto}select{border:1px solid var(--border);background:var(--surface);width:100%;min-height:46px;color:var(--ink);border-radius:8px;padding:10px}.study-layout{grid-template-columns:260px minmax(0,1fr);align-items:start;gap:24px;display:grid}.cartridge{min-width:0;padding:22px 20px}.cartridge h2{margin-bottom:4px;font-size:19px}.cartridge .muted{font-size:12px}.cartridge .outline{width:100%;margin-top:4px;font-size:13px}.source-list{margin:20px 0;padding:0;list-style:none}.source-list li{border-top:1px solid var(--border);overflow-wrap:anywhere;align-items:flex-start;gap:10px;padding:12px 0;font-size:12px;line-height:1.6;display:flex}.source-list li>span:last-child{min-width:0}.file-mark{border:1px solid var(--border);color:var(--muted);text-align:center;border-radius:4px;flex:0 0 28px;padding:4px 3px;font-size:8px}.tool-links{border-top:1px solid var(--border);padding-top:20px}.tool-links a{font-size:13px;line-height:1.6}.tool-links p:last-child{margin-top:8px;margin-bottom:0;font-size:11px}.study-main{min-width:0}.study-tool-picker{border-bottom:1px solid #d9dee5;gap:24px;margin-bottom:18px;display:flex}.study-tool-picker button{min-height:44px;color:var(--muted);background:0 0;border:0;border-bottom:2px solid #0000;border-radius:0;margin-bottom:-1px;padding:0 4px 12px;font-size:14px}.study-tool-picker button[aria-pressed=true]{border-bottom-color:var(--plum);color:var(--plum);font-weight:650}.study-tool-picker button:hover{color:var(--plum);background:0 0}.chat{padding:0;overflow:hidden}.chat-heading{border-bottom:1px solid var(--border);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;padding:22px 26px;display:flex}.chat-heading h2{margin-bottom:4px;font-size:19px}.chat-heading p{margin:0;font-size:12px}.status-dot{color:var(--sara-udec-green,#0e6b47);white-space:nowrap;font-size:11px}.status-dot:before{content:"";background:var(--sara-udec-green,#10b981);border-radius:50%;width:6px;height:6px;margin-right:7px;display:inline-block}.conversation{overscroll-behavior:contain;scrollbar-gutter:stable;min-height:310px;max-height:55vh;padding:26px;overflow:auto}.chat-empty{text-align:center;max-width:580px;margin:8px auto 18px}.study-symbol{width:48px;height:48px;color:var(--plum);background:var(--tint);border-radius:12px;justify-content:center;align-items:center;margin:4px 0 18px;display:inline-flex}.study-symbol svg{width:25px;height:25px}.chat-empty h3{margin-bottom:8px;font-size:21px}.chat-empty p{color:var(--muted);font-size:13px}.suggestions{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:22px;display:grid}.suggestions button{text-align:left;border:1px solid var(--border);background:var(--surface);color:var(--ink);border-radius:8px;justify-content:space-between;align-items:center;gap:12px;padding:12px 14px;font-size:12px;line-height:1.5;display:flex}.suggestions button span{color:var(--sara-coral-600,#e65642);flex-shrink:0;font-weight:700}.message{overflow-wrap:anywhere;border-bottom:1px solid var(--border);padding:20px 0;font-size:14px;line-height:1.75}.message:first-child{padding-top:0}.message.user{background:var(--tint);border:1px solid var(--border);border-radius:10px;margin:12px 0;padding:16px 20px}.speaker{color:var(--plum);margin-bottom:8px;font-size:12px;font-weight:650}.message pre{background:var(--tint);border-radius:8px;padding:16px;overflow:auto}.message img{max-width:100%}.message table{border-collapse:collapse;max-width:100%;display:block;overflow:auto}.message td,.message th{border:1px solid var(--border);padding:8px}.evidence{color:var(--muted);margin-top:16px;font-size:12px}.evidence summary{cursor:pointer;min-height:44px;color:var(--plum);padding:10px 0}.evidence p{font-size:11px}.composer{border-top:1px solid var(--border);padding:20px 26px}.composer>label{margin-bottom:10px;font-size:13px;font-weight:600;display:block}textarea{resize:vertical;border:1px solid var(--border);background:var(--surface);width:100%;min-height:90px;max-height:250px;color:var(--ink);border-radius:9px;padding:13px;line-height:1.5}.composer textarea{font-size:14px}.composer-footer{justify-content:space-between;align-items:center;gap:20px;margin-top:12px;display:flex}.composer-footer>span{max-width:370px;font-size:11px}.composer-footer .primary{flex-shrink:0;font-size:13px}.thinking{color:var(--sara-coral-600,#e65642);padding-top:16px;font-size:13px}.error{color:#923746;overflow-wrap:anywhere;background:#fff4f5;border:1px solid #ecd0d4;border-radius:9px;margin:12px 0;padding:14px;font-size:14px}.skip-link{z-index:20;background:#fff;padding:12px;position:absolute;top:-100px;left:20px}.skip-link:focus{top:12px}.sr-only{clip-path:inset(50%);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.practice-actions{flex-wrap:wrap;gap:10px;display:flex}.lesson-result{overflow-wrap:anywhere}.concept-graph{border:1px solid var(--border);background:var(--tint);border-radius:12px;height:400px;margin:20px 0;overflow:hidden}.concept-graph button{border-radius:0;min-width:32px;min-height:32px;padding:0}.concept-buttons{flex-wrap:wrap;gap:8px;display:flex}.concept-buttons button[aria-pressed=true]{background:var(--plum);border-color:var(--plum);color:#fff}.lesson-sources summary,.lesson-relations summary{cursor:pointer}.lesson-sources blockquote{white-space:pre-wrap;max-height:240px;overflow:auto}@media (max-width:900px){.study-layout{grid-template-columns:1fr;gap:20px}.cartridge{padding:18px 20px}.material-heading{justify-content:space-between;align-items:center;gap:16px;display:flex}.material-heading p:last-child{margin:0}.material-heading .outline{flex-shrink:0;width:auto;margin:0}.source-list{flex-wrap:wrap;gap:8px 18px;max-height:132px;margin:12px 0;display:flex;overflow:auto}.source-list li{border:0;max-width:100%;padding:6px 0}.tool-links{padding-top:12px}.tool-links .eyebrow{display:none}.tool-links p:last-child{margin-top:4px}.account-name{display:none}}@media (max-width:600px){.topbar{flex-wrap:wrap;gap:8px 12px;min-height:68px;padding:10px 16px}.brand{width:86px;height:32px}.preview-badge{font-size:10px}.version-return{border-top:1px solid var(--border);order:4;width:100%;min-height:32px;padding-top:7px;font-size:11px}.account{border:0;margin-left:auto;padding-left:0}.workspace-nav{gap:24px;padding:0 16px}.workspace{padding:24px 16px 40px}.page-heading{margin-bottom:20px}.page-heading .muted{font-size:13px}.welcome{margin:10px auto}.material-heading{flex-wrap:wrap;align-items:flex-start}.cartridge{padding:16px}.material-heading .outline{font-size:12px}.study-tool-picker{gap:22px;margin-bottom:14px}.study-tool-picker button{font-size:13px}.chat-heading,.composer{padding:18px 16px}.chat-heading h2{font-size:18px}.conversation{min-height:280px;max-height:60vh;padding:20px 16px}.chat-empty{margin:0 auto 12px}.chat-empty h3{font-size:20px}.suggestions{grid-template-columns:1fr;margin-top:18px}.composer-footer{flex-direction:column-reverse;align-items:flex-start;gap:12px}.composer-footer .primary{width:100%}.concept-graph{height:340px}}@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}
