@layer theme{:root,:host{--font-sans:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before,::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji");font-feature-settings:var(--default-font-feature-settings,normal);font-variation-settings:var(--default-font-variation-settings,normal);-webkit-tap-highlight-color:transparent}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:var(--default-mono-font-family,ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace);font-feature-settings:var(--default-mono-font-feature-settings,normal);font-variation-settings:var(--default-mono-font-variation-settings,normal);font-size:1em}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}:-moz-focusring:where(:not(iframe)){outline:auto}progress{vertical-align:baseline}summary{display:list-item}ol,ul,menu{list-style:none}img,svg,video,canvas,audio,iframe,embed,object{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}button,input,select,optgroup,textarea{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}::file-selector-button{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}:where(select:is([multiple],[size])) optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab, red, red)){::placeholder{color:color-mix(in oklab, currentcolor 50%, transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit{padding-block:0}::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-day-field{padding-block:0}::-webkit-datetime-edit-hour-field{padding-block:0}::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-millisecond-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){appearance:button}::file-selector-button{appearance:button}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer components;@layer utilities{.visible{visibility:visible}.block{display:block}.table{display:table}.grow{flex-grow:1}}:root{--ink:#18213a;--muted:#697188;--line:#e5e7ef;--paper:#f7f8fc;--violet:#6951d8}*{box-sizing:border-box}html,body{min-height:100%}body{color:var(--ink);background:var(--paper);margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}button,textarea{font:inherit}button{color:inherit}.app-shell{min-height:100vh;display:flex}.sidebar{border-right:1px solid var(--line);z-index:10;background:#fff;flex-direction:column;width:272px;padding:30px 22px 22px;display:flex;position:fixed;inset:0 auto 0 0}.brand{align-items:center;gap:12px;padding:0 8px 26px;display:flex}.brand-mark,.professor-orb{color:#fff;letter-spacing:-.04em;background:linear-gradient(145deg,#30235e,#795ee6);place-items:center;font-family:Georgia,serif;font-weight:700;display:grid;box-shadow:0 8px 22px #6048c633}.brand-mark{border-radius:13px;width:42px;height:42px}.brand strong,.brand span,.profile strong,.profile span{display:block}.brand strong{font-family:Georgia,serif;font-size:18px}.brand span{color:#858b9b;margin-top:3px;font-size:11px}.primary-nav{gap:5px;display:grid}.nav-item{color:#656d80;text-align:left;cursor:pointer;background:0 0;border:0;border-radius:11px;align-items:center;gap:13px;padding:12px 13px;font-size:14px;font-weight:550;display:flex}.nav-item span{text-align:center;width:20px;font-size:17px}.nav-item:hover{color:#44318e;background:#f3f1fb}.nav-item.active{color:#533caf;background:#eeebfb;font-weight:700}.book-card{background:#faf9fe;border:1px solid #e6e1f7;border-radius:14px;margin-top:auto;padding:16px}.eyebrow{letter-spacing:.13em;color:#8c91a3;font-size:10px;font-weight:800;display:block}.book-card strong{margin-top:7px;font-family:Georgia,serif;font-size:14px;display:block}.book-card p{color:#73798c;margin:3px 0 12px;font-size:11px}.book-status{color:#537166;border-top:1px solid #ebe7f8;padding-top:10px;font-size:10px;font-weight:700}.book-status span{background:#2eaa78;border-radius:50%;width:7px;height:7px;margin-right:6px;display:inline-block;box-shadow:0 0 0 3px #dff5eb}.profile{align-items:center;gap:10px;padding:20px 5px 0;display:flex}.avatar{color:#513c9c;background:#e8e4f7;border-radius:50%;place-items:center;width:34px;height:34px;font-size:13px;font-weight:800;display:grid}.profile strong{font-size:12px}.profile span{color:#959aab;margin-top:2px;font-size:10px}.profile button{color:#969bad;cursor:pointer;background:0 0;border:0;margin-left:auto}.switch-study{text-align:left;cursor:pointer;background:#f8f7fc;border:1px solid #e4e0f0;border-radius:11px;align-items:center;gap:10px;margin-top:16px;padding:10px 12px;display:flex}.switch-study>span{color:#6b52d8;font-size:17px}.switch-study small,.switch-study strong{display:block}.switch-study small{color:#9893a4;letter-spacing:.1em;font-size:7px;font-weight:850}.switch-study strong{margin-top:2px;font-size:10px}.study-switch-top{cursor:pointer;background:0 0;border:0}.study-switch-top strong{color:#5641b3}.workspace{flex:1;min-width:0;margin-left:272px}.topbar{-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);z-index:5;background:#ffffffd9;justify-content:space-between;align-items:center;height:70px;padding:0 42px;display:flex;position:sticky;top:0}.breadcrumb{color:#7b8193;font-size:12px;font-weight:700}.private-pill{color:#4c6d5b;background:#f4faf6;border:1px solid #dfe9e3;border-radius:99px;padding:7px 12px;font-size:10px;font-weight:750}.private-pill span{color:#39a675;margin-right:5px}.mobile-menu{background:0 0;border:0;font-size:20px;display:none}.content{max-width:1180px;margin:0 auto;padding:48px 46px 80px}.welcome{justify-content:space-between;align-items:flex-end;margin-bottom:32px;display:flex}.eyebrow.purple{color:#6e51d4}.welcome h1{letter-spacing:-.03em;margin:10px 0;font:600 38px/1.12 Georgia,serif}.welcome h1 em{color:#6850cf;font-weight:500}.welcome p{color:var(--muted);margin:0;font-size:14px}.streak{grid-template-columns:32px 1fr;align-items:center;column-gap:8px;min-width:100px;display:grid}.streak>span{color:#e38b28;background:#fff3de;border-radius:10px;grid-row:1/3;place-items:center;width:32px;height:32px;display:grid}.streak strong{font-size:13px}.streak small{color:#888fa1;font-size:10px}.ask-card{color:#fff;background:linear-gradient(120deg,#151d37,#24204d 58%,#3e2b76);border-radius:22px;grid-template-columns:72px 1fr;column-gap:20px;padding:27px 30px 28px;display:grid;position:relative;overflow:hidden;box-shadow:0 16px 45px #20214026}.ask-card:after{content:"";border:1px solid #ffffff12;border-radius:50%;width:260px;height:260px;position:absolute;top:-120px;right:-70px;box-shadow:0 0 0 45px #ffffff08,0 0 0 90px #ffffff05}.professor-orb{z-index:1;border:1px solid #ffffff2e;border-radius:18px;width:60px;height:60px;font-size:19px}.ask-copy{z-index:1}.ask-copy .eyebrow{color:#bcb5e8}.ask-copy h2{margin:6px 0;font:600 25px Georgia,serif}.ask-copy p{color:#c9cbe0;margin:0;font-size:12px}.ask-card form{z-index:1;background:#fff;border-radius:13px;grid-column:1/-1;margin-top:22px;overflow:hidden;box-shadow:0 9px 24px #0a0b194d}.ask-card textarea{resize:none;color:#242a3b;border:0;outline:0;width:100%;min-height:72px;padding:17px 18px 10px;font-size:13px}.ask-card textarea::placeholder{color:#989dad}.composer-footer{border-top:1px solid #ececf2;justify-content:space-between;align-items:center;padding:9px 10px 9px 17px;display:flex}.source-lock{color:#7165a7;font-size:10px;font-weight:700}.composer-footer button{color:#fff;cursor:pointer;background:#6b52d8;border:0;border-radius:9px;padding:10px 14px;font-size:11px;font-weight:750}.composer-footer button:disabled{opacity:.45;cursor:not-allowed}.composer-footer button span,.continue-button span{margin-left:7px}.quick-prompts{gap:8px;margin-top:12px;padding-bottom:2px;display:flex;overflow-x:auto}.quick-prompts button{white-space:nowrap;color:#5d5384;cursor:pointer;background:#fff;border:1px solid #ddd9ee;border-radius:99px;padding:8px 12px;font-size:10px;font-weight:700}.quick-prompts button:hover{background:#f8f6ff;border-color:#806cce}.answer-card{border:1px solid var(--line);background:#fff;border-radius:17px;margin-top:18px;padding:22px;box-shadow:0 7px 25px #1c24420d}.answer-card.answered{border-top:3px solid #6b52d8}.answer-card.ambiguous{border-top:3px solid #d18b37}.answer-card.not-found{border-top:3px solid #8990a2}.answer-header{align-items:center;gap:12px;display:flex}.professor-mini{color:#543fb0;background:#eeeafd;border-radius:11px;place-items:center;width:38px;height:38px;font:700 12px Georgia,serif;display:grid}.answer-header h2{margin:3px 0 0;font:600 19px Georgia,serif}.grounding-badge{color:#397259;background:#eff8f3;border-radius:99px;margin-left:auto;padding:6px 9px;font-size:9px;font-weight:800}.ambiguous .grounding-badge{color:#9a6224;background:#fff5e7}.not-found .grounding-badge{color:#686f81;background:#f1f2f5}.answer-text{color:#4d5467;max-width:850px;margin:18px 0;font:15px/1.65 Georgia,serif}.citation{background:#faf9fd;border:1px solid #e8e5f2;border-radius:11px;overflow:hidden}.citation summary{cursor:pointer;grid-template-columns:auto 1fr auto;align-items:center;gap:9px;padding:11px 13px;list-style:none;display:grid}.citation summary::-webkit-details-marker{display:none}.citation summary span{color:#745fd0;text-transform:uppercase;letter-spacing:.08em;font-size:9px;font-weight:850}.citation summary strong{font-size:10px}.citation summary b{color:#6853bd;font-size:9px}.citation>div{border-top:1px solid #e9e6f3;padding:12px 13px}.citation p{color:#565d70;margin:0 0 6px;font:italic 12px/1.5 Georgia,serif}.citation small{color:#8a90a0;font-size:9px}.interpretations{gap:7px;margin:14px 0;display:grid}.interpretations button{text-align:left;color:#5b4ba1;cursor:pointer;background:#faf9fd;border:1px solid #e2deef;border-radius:9px;padding:10px 12px;font-size:11px;font-weight:700}.interpretations button span{float:right}.review-button{color:#5e43c7;cursor:pointer;background:#f7f5ff;border:1px solid #d9d2ff;border-radius:10px;margin-bottom:14px;padding:10px 14px;font-weight:700}.review-queue>button{text-align:left;cursor:pointer;color:#25212e;background:#fff;border:1px solid #e7e3ef;border-radius:12px;grid-template-columns:1fr 2fr auto;align-items:center;gap:16px;width:100%;margin-top:10px;padding:14px 16px;display:grid}.review-queue>button span{color:#716a7c;font-size:.85rem}.review-queue>button b{color:#684ad5}.review-queue>p{color:#857e8e;margin-top:10px;font-size:.78rem}.section-block{margin-top:38px}.section-heading{justify-content:space-between;align-items:end;margin-bottom:15px;display:flex}.section-heading h2{margin:5px 0 0;font:600 22px Georgia,serif}.section-heading button{color:#6750c8;cursor:pointer;background:0 0;border:0;font-size:11px;font-weight:750}.subtle{color:#9297a7;font-size:10px}.focus-card{border:1px solid var(--line);background:#fff;border-radius:16px;align-items:center;gap:20px;padding:20px 22px;display:flex;box-shadow:0 6px 18px #1e28470b}.focus-index{color:#c76524;background:#fff2e7;border-radius:15px;flex:0 0 62px;place-items:center;width:62px;height:62px;font:700 21px Georgia,serif;display:grid}.focus-copy{flex:1}.eyebrow.orange{color:#c66b2e}.focus-copy h3{margin:4px 0;font:600 17px Georgia,serif}.focus-copy p{color:#73798c;margin:0 0 11px;font-size:11px}.progress-row{align-items:center;gap:10px;max-width:390px;display:flex}.progress{background:#edf0f4;border-radius:9px;flex:1;height:5px;overflow:hidden}.progress i{background:#dd8240;border-radius:9px;height:100%;display:block}.progress-row span{color:#8f94a4;font-size:9px}.continue-button{color:#5e47bd;cursor:pointer;background:#f8f6fe;border:1px solid #ddd7f2;border-radius:10px;padding:11px 14px;font-size:10px;font-weight:750}.unit-grid{grid-template-columns:repeat(3,1fr);gap:11px;display:grid}.unit-card{text-align:left;border:1px solid var(--line);cursor:pointer;background:#fff;border-radius:14px;grid-template-rows:1fr auto;grid-template-columns:38px 1fr;column-gap:11px;padding:14px;transition:all .2s;display:grid}.unit-card:hover{border-color:#ccc4ea;transform:translateY(-2px);box-shadow:0 8px 24px #22294b12}.unit-number{color:#fff;border-radius:10px;grid-row:1;place-items:center;width:36px;height:36px;font:700 15px Georgia,serif;display:grid}.unit-meta small,.unit-meta strong{display:block}.unit-meta small{color:#9a9fad;letter-spacing:.08em;font-size:8px;font-weight:800}.unit-meta strong{margin-top:3px;font:600 12px/1.25 Georgia,serif}.unit-progress{grid-column:1/-1;align-items:center;gap:8px;margin-top:12px;display:flex}.unit-progress i{background:#edf0f4;border-radius:5px;flex:1;height:3px;overflow:hidden}.unit-progress b{height:100%;display:block}.unit-progress small{color:#969baa;text-align:right;width:24px;font-size:8px}@media (max-width:900px){.sidebar{width:224px;padding-inline:14px}.workspace{margin-left:224px}.content{padding-inline:28px}.unit-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width:700px){.sidebar{display:none}.workspace{margin-left:0}.topbar{height:60px;padding:0 20px}.mobile-menu{display:block}.breadcrumb{display:none}.content{padding:30px 18px 60px}.welcome{align-items:flex-start}.welcome h1{font-size:31px}.welcome p{max-width:290px}.streak{min-width:auto}.ask-card{grid-template-columns:52px 1fr;padding:22px 18px}.professor-orb{border-radius:14px;width:48px;height:48px}.ask-copy h2{font-size:21px}.focus-card{flex-wrap:wrap;align-items:flex-start}.focus-copy{min-width:calc(100% - 88px)}.continue-button{margin-left:82px}.unit-grid{grid-template-columns:1fr 1fr}.section-heading .subtle{display:none}}@media (max-width:450px){.streak{display:none}.unit-grid{grid-template-columns:1fr}.composer-footer{align-items:flex-end;gap:8px}.source-lock{max-width:130px}.ask-copy p{line-height:1.45}.focus-index{flex-basis:52px;width:52px;height:52px}.focus-copy{min-width:calc(100% - 76px)}.continue-button{width:100%;margin-left:0}.answer-header{flex-wrap:wrap;align-items:flex-start}.grounding-badge{margin-left:50px}.citation summary{grid-template-columns:auto 1fr}.citation summary b{grid-column:2}.quick-prompts{margin-right:-18px}}.sign-in-page{background:radial-gradient(circle at 50% 0,#eee9ff 0,#0000 38%),#f7f8fc;place-items:center;min-height:100vh;padding:24px;display:grid}.sign-in-card{text-align:center;background:#fff;border:1px solid #e5e2ef;border-radius:22px;width:min(440px,100%);padding:38px;box-shadow:0 22px 70px #29325b1a}.sign-in-mark{border-radius:16px;width:54px;height:54px;margin:0 auto 20px}.sign-in-card h1{margin:10px 0;font:600 30px Georgia,serif}.sign-in-card>p{color:#6d7488;max-width:320px;margin:0 auto 24px;font-size:13px;line-height:1.6}.email-sign-in-form{text-align:left;gap:9px;display:grid}.email-sign-in-form label{color:#5b6275;font-size:10px;font-weight:800}.email-sign-in-form input{color:#252c40;border:1px solid #dadce6;border-radius:10px;outline:0;width:100%;padding:12px 13px;font-size:12px}.email-sign-in-form input:focus{border-color:#735ed0;box-shadow:0 0 0 3px #735ed018}.sign-in-card form button{color:#fff;cursor:pointer;background:#6750cf;border:0;border-radius:11px;width:100%;margin-top:4px;padding:13px 16px;font-size:12px;font-weight:800}.sign-in-card form button span{float:right}.form-error{color:#b74555;font-size:10px;font-weight:700}.email-sent{color:#436653;background:#f5faf7;border:1px solid #dcebe3;border-radius:13px;padding:18px}.email-sent>span{color:#2d8057;background:#dcefe4;border-radius:50%;place-items:center;width:32px;height:32px;margin:0 auto 8px;font-weight:900;display:grid}.email-sent strong{font:600 17px Georgia,serif;display:block}.email-sent p{margin:7px 0 13px;font-size:11px;line-height:1.55}.email-sent a{color:#5947aa;font-size:10px;font-weight:800;text-decoration:none}.privacy-note{color:#9297a7;border-top:1px solid #ebe9f1;margin-top:24px;padding-top:18px;font-size:10px;line-height:1.5}.library-page,.setup-page{background:radial-gradient(circle at 50% -10%,#ebe7ff 0,#0000 35%),#f7f8fc;min-height:100vh;padding:0 6vw 70px}.library-header{border-bottom:1px solid #e2e3eb;justify-content:space-between;align-items:center;max-width:1120px;height:86px;margin:auto;display:flex}.library-header .brand{padding:0}.library-hero{max-width:1120px;margin:72px auto 35px}.library-hero h1{letter-spacing:-.03em;margin:10px 0;font:600 44px/1.1 Georgia,serif}.library-hero p{color:#6c7386;max-width:580px;line-height:1.6}.course-grid{grid-template-columns:repeat(3,1fr);gap:18px;max-width:1120px;margin:auto;display:grid}.course-card{--course-accent:#6951d8;text-align:left;cursor:pointer;background:#fff;border:1px solid #e1e2e9;border-radius:20px;min-height:280px;padding:24px;transition:all .2s;position:relative;box-shadow:0 10px 30px #222a4810}.course-card:hover{border-color:var(--course-accent);transform:translateY(-4px);box-shadow:0 16px 38px #222a4818}.course-mark{background:var(--course-accent);border-radius:15px;place-items:center;width:54px;height:54px;display:grid}@supports (color:color-mix(in lab, red, red)){.course-mark{background:color-mix(in srgb,var(--course-accent) 13%,white)}}.course-mark{color:var(--course-accent);margin-bottom:32px;font:700 20px Georgia,serif}.course-status{text-transform:uppercase;letter-spacing:.07em;border-radius:99px;padding:6px 9px;font-size:8px;font-weight:850;position:absolute;top:22px;right:20px}.course-status.ready{color:#337057;background:#eaf6ef}.course-status.needs-source{color:#89652e;background:#fff3dc}.course-card small,.course-card strong{display:block}.course-card small{color:#8d93a3;letter-spacing:.1em;font-size:8px;font-weight:850}.course-card strong{margin-top:7px;font:600 23px Georgia,serif}.course-card p{color:#747b8d;margin:6px 0 26px;font-size:11px;line-height:1.5}.course-action{color:var(--course-accent);font-size:10px;font-weight:850;position:absolute;bottom:23px}.add-course{--course-accent:#8990a0;cursor:default;background:#fafbfc;border-style:dashed}.add-course:hover{transform:none}.setup-page{place-items:center;display:grid;position:relative}.back-library{color:#6250b4;cursor:pointer;background:0 0;border:0;font-weight:750;position:absolute;top:35px;left:6vw}.setup-card{--course-accent:#157f78;text-align:center;background:#fff;border:1px solid #e0e3e8;border-radius:24px;width:min(560px,92vw);padding:38px;box-shadow:0 24px 70px #26304f18}.setup-card .course-mark{margin:0 auto 20px}.setup-card h1{margin:8px 0;font:600 34px Georgia,serif}.setup-card>p{color:#737b8d}.setup-checklist{text-align:left;background:#f5faf9;border:1px solid #dcecea;border-radius:14px;gap:10px;margin:25px 0;padding:18px;display:grid}.setup-checklist strong{color:#285f5b;margin-bottom:5px}.setup-checklist span{color:#617473;font-size:11px}.setup-card>button{color:#6e7d7c;background:#d9e4e3;border:0;border-radius:11px;padding:12px 18px;font-weight:750}@media (max-width:850px){.course-grid{grid-template-columns:1fr 1fr}.library-hero{margin-top:45px}}@media (max-width:560px){.library-page{padding-inline:20px}.library-header .private-pill{display:none}.library-hero h1{font-size:35px}.course-grid{grid-template-columns:1fr}.course-card{min-height:250px}}