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decimal-leading-zero);color:var(--muted);font:600 10px/1 var(--font-mono), monospace}.core-terms{margin-top:48px}.core-terms>div{border-top:1px solid var(--line);grid-template-columns:1.15fr 1fr 1fr;align-items:center;gap:18px;min-height:48px;font-size:13px;display:grid}.core-terms>div:last-child{border-bottom:1px solid var(--line)}.core-terms span{color:var(--muted)}.end-evidence{margin-top:48px}.end-evidence article{border-top:1px solid var(--line);padding:18px 0}.end-evidence article:last-child{border-bottom:1px solid var(--line)}.end-evidence article>strong{font-size:14px;line-height:1.55;display:block}.end-evidence article small{color:var(--muted);font:500 10px/1.2 var(--font-mono), monospace;align-items:center;gap:5px;display:inline-flex}.coverage-note{border:1px solid var(--line);color:var(--muted);border-radius:10px;gap:12px;margin-top:38px;padding:18px 20px;display:flex}.coverage-note p{margin:0;font-size:13px;line-height:1.55}.source-details{border-top:1px solid var(--line);color:var(--muted);margin-top:48px;padding-top:22px}.source-details summary{cursor:pointer;color:var(--ink);font-size:12px;font-weight:650}.source-details[open] summary{margin-bottom:18px}.source-details>p{font:500 10px/1.5 var(--font-mono), monospace}@media (max-width:1180px){.reader-layout{grid-template-columns:210px minmax(0,1fr)}.evidence-panel{display:none}}@media (max-width:820px){.reader-topbar{padding-inline:16px}.reader-top-actions>a{display:none}.reader-layout{width:min(100% - 32px,820px);display:block}.reader-nav{margin-top:30px;position:static}.reader-nav nav,.reader-languages{display:none}.reader-course{border:0;padding:0}.lecture-article{padding-top:38px}.overview-points,.glossary{grid-template-columns:1fr}.exam-section,.textbook-section{padding:28px}.glossary>div{grid-template-columns:1fr;gap:7px}.editorial-reader-layout{width:min(100% - 32px,760px);display:block}.editorial-nav{margin-top:30px;position:static}.editorial-nav nav,.editorial-nav .reader-languages{display:none}.editorial-title{padding-top:8px}}@media (max-width:520px){.reader-topbar .logo>span:last-child{display:none}.export-actions button{padding-inline:9px}.source-figure figcaption{grid-template-columns:1fr;gap:4px}.evidence,.assignment-section{grid-template-columns:1fr}.editorial-slide figcaption{grid-template-columns:1fr;gap:5px}.core-terms>div{grid-template-columns:1fr;gap:5px;padding:12px 0}.professor-note{grid-template-columns:30px 1fr;padding:17px}}.processing-shell{margin-top:84px}.processing-layout{grid-template-columns:1.2fr .8fr;align-items:start;gap:clamp(40px,8vw,120px);display:grid}.processing-main{padding-top:22px}.stage-orb{color:var(--accent-ink);background:var(--accent);border-radius:50%;place-items:center;width:88px;height:88px;display:grid}.stage-orb svg{width:34px;height:34px}.stage-orb.stopped{color:var(--danger);background:var(--danger)}@supports (color:color-mix(in lab, red, red)){.stage-orb.stopped{background:color-mix(in srgb, var(--danger) 12%, var(--surface))}}.stage-orb.stopped{border:1px solid var(--danger)}@supports (color:color-mix(in lab, red, red)){.stage-orb.stopped{border:1px solid color-mix(in srgb, var(--danger) 38%, var(--line))}}.processing-stage-label{letter-spacing:.08em;color:var(--ink)!important;font:650 11px/1.2 var(--font-mono), monospace!important;margin:26px 0 0!important}.processing-main h1{letter-spacing:-.055em;max-width:700px;margin:16px 0 14px;font-size:clamp(42px,6vw,72px);font-weight:610;line-height:1.02}.processing-main>p{max-width:520px;color:var(--muted);margin:0 0 30px;font-size:17px;line-height:1.55}.pipeline-list{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);padding:12px 22px}.pipeline-row{min-height:58px;color:var(--muted);grid-template-columns:30px 1fr;align-items:center;gap:12px;font-size:14px;display:grid}.pipeline-icon{border:1px solid var(--line);width:26px;height:26px;font:600 10px/1 var(--font-mono), monospace;border-radius:8px;place-items:center;display:grid}.pipeline-row.done{color:var(--ink)}.pipeline-row.done .pipeline-icon{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}.pipeline-row.active{color:var(--ink);font-weight:650}.pipeline-row.active .pipeline-icon{background:var(--ink);color:var(--bg)}.history-heading{justify-content:space-between;align-items:flex-end;gap:30px;margin-bottom:52px;display:flex}.history-heading h1{letter-spacing:-.055em;margin:0;font-size:clamp(44px,6vw,72px);font-weight:610;line-height:1}.history-heading p:last-child{color:var(--muted);margin:15px 0 0}.history-list{border-top:1px solid var(--line)}.history-row{border-bottom:1px solid var(--line);grid-template-columns:110px minmax(180px,1fr) auto auto 24px auto auto;align-items:center;gap:14px;min-height:108px;transition:padding .2s,background .2s;display:grid}.history-row:hover{background:var(--surface);padding-inline:12px}.history-course{font:600 12px/1 var(--font-mono), monospace;color:var(--muted)}.history-title{gap:8px;display:grid}.history-title strong{letter-spacing:-.02em;font-size:18px}.history-title small{color:var(--muted)}.history-status{background:var(--surface-2);color:var(--muted);font:600 11px/1 var(--font-mono), monospace;border-radius:9px;padding:7px 10px}.history-status.complete{background:var(--accent);color:var(--accent-ink)}.history-price{color:var(--muted);font:600 11px/1 var(--font-mono), monospace}.history-open{place-items:center;display:grid}.auth-page{background:var(--bg);grid-template-rows:auto 1fr;min-height:100dvh;padding:24px;display:grid}.auth-topbar{justify-content:space-between;align-items:center;display:flex}.auth-topbar>a,.auth-topbar>div>a{color:var(--muted);font-size:13px}.auth-topbar>div{align-items:center;gap:20px;display:flex}.auth-card{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);width:min(100%,470px);box-shadow:0 24px 70px var(--shadow);align-self:start;margin:72px auto 120px;padding:clamp(28px,5vw,48px)}.auth-card h1{letter-spacing:-.05em;margin:0;font-size:clamp(36px,5vw,54px);line-height:1.04}.auth-card>p:not(.eyebrow):not(.auth-message){color:var(--muted);line-height:1.6}.auth-button{width:100%}.auth-button.secondary{background:var(--ink);color:var(--bg)}.auth-divider{color:var(--muted);align-items:center;gap:12px;margin:24px 0;font-size:11px;display:flex}.auth-divider:before,.auth-divider:after{content:"";background:var(--line);flex:1;height:1px}.email-auth-form,.email-auth-form label{gap:12px;display:grid}.email-auth-form label span{font-size:12px;font-weight:650}.email-auth-form input{border:1px solid var(--line);background:var(--bg);height:50px;color:var(--ink);border-radius:11px;padding:0 14px}.email-auth-form input:focus{outline:2px solid var(--accent)}@supports (color:color-mix(in lab, red, red)){.email-auth-form input:focus{outline:2px solid color-mix(in srgb, var(--accent) 65%, transparent)}}.email-auth-form input:focus{outline-offset:2px;border-color:var(--accent)}.email-auth-form .otp-input{text-align:center;height:64px;font:650 25px/1 var(--font-mono), monospace;letter-spacing:.28em;padding-left:calc(14px + .28em)}.otp-label{margin-top:6px}.auth-secondary-actions{color:var(--muted);justify-content:center;align-items:center;gap:10px;margin-top:20px;font-size:13px;display:flex}.auth-secondary-actions form{margin:0}.auth-text-button{color:var(--muted);font:inherit;cursor:pointer;text-underline-offset:3px;background:0 0;border:0;padding:4px;text-decoration:underline}.auth-text-button:hover{color:var(--ink)}.auth-message{background:var(--accent);border-radius:10px;padding:12px 14px}@supports (color:color-mix(in lab, red, red)){.auth-message{background:color-mix(in srgb, var(--accent) 13%, var(--surface))}}.auth-message{font-size:13px;line-height:1.5}.auth-message.error{color:var(--danger);background:var(--danger)}@supports (color:color-mix(in lab, red, red)){.auth-message.error{background:color-mix(in srgb, var(--danger) 10%, var(--surface))}}.auth-card .auth-legal{color:var(--muted);margin:26px 0 0;font-size:11px;line-height:1.55}.auth-legal a{color:var(--ink);text-underline-offset:3px;text-decoration:underline}.pricing-hero{text-align:center;padding:100px 0 140px}.pricing-hero>h1{letter-spacing:-.06em;max-width:850px;margin:0 auto;font-size:clamp(48px,7vw,84px);line-height:.98}.pricing-hero>p{color:var(--muted);font-size:18px}.pricing-card{text-align:left;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);width:min(100%,670px);box-shadow:0 25px 70px var(--shadow);gap:32px;margin:54px auto 24px;padding:clamp(30px,5vw,54px);display:grid}.pricing-card>div{align-items:baseline;gap:10px;display:flex}.pricing-card>div span{color:var(--muted);margin-right:auto}.pricing-card>div strong{letter-spacing:-.055em;font-size:54px}.pricing-card>div small{color:var(--muted)}.pricing-card ul{gap:14px;margin:0;padding:0;list-style:none;display:grid}.pricing-card li{align-items:center;gap:10px;display:flex}.pricing-card li svg{color:#6c9821}.pricing-note{max-width:620px;margin-inline:auto;font-size:12px!important}.pricing-legal{color:var(--muted);justify-content:center;gap:22px;font-size:12px;display:flex}.pricing-legal a:hover{color:var(--ink)}.history-skeleton{background:var(--line);gap:1px;display:grid}.history-skeleton span{background:var(--surface);height:107px;animation:1.5s ease-in-out infinite alternate pulse}@keyframes pulse{50%{opacity:.5}}.empty-state{text-align:center;border:1px solid var(--line);border-radius:var(--radius);flex-direction:column;justify-content:center;align-items:center;min-height:440px;display:flex}.empty-state h2{margin:20px 0 8px}.empty-state p{color:var(--muted);margin:0 0 24px}.legal-page{width:min(760px,100% - 48px);padding:72px 0 110px}.legal-page>header{border-bottom:1px solid var(--line);padding-bottom:42px}.legal-page h1{letter-spacing:-.055em;margin:0;font-size:clamp(44px,7vw,72px);line-height:1}.legal-page>header p{max-width:620px;color:var(--muted);margin:22px 0 14px;font-size:18px;line-height:1.6}.legal-page>header small{color:var(--muted);font-size:12px}.legal-copy{padding:24px 0}.legal-copy section{border-bottom:1px solid var(--line);padding:28px 0}.legal-copy h2{letter-spacing:-.02em;margin:0 0 12px;font-size:20px}.legal-copy p{color:var(--ink);margin:0}@supports (color:color-mix(in lab, red, red)){.legal-copy p{color:color-mix(in srgb, var(--ink) 80%, var(--muted))}}.legal-copy p{font-size:15px;line-height:1.8}.legal-footer{color:var(--muted);justify-content:space-between;gap:20px;padding-top:26px;font-size:13px;display:flex}.legal-footer a:hover{color:var(--ink)}.status-page{grid-template-rows:auto 1fr;width:min(100% - 48px,1100px);min-height:100dvh;margin:auto;padding:32px 0 80px;display:grid}.status-page>div{align-self:center;max-width:720px;padding:70px 0}.status-page>div>span{color:var(--muted);font:650 11px/1 var(--font-mono), monospace;letter-spacing:.1em;text-transform:uppercase}.status-page h1{letter-spacing:-.06em;margin:20px 0 16px;font-size:clamp(46px,8vw,82px);line-height:.98}.status-page p{max-width:580px;color:var(--muted);margin:0 0 30px;font-size:18px;line-height:1.6}.status-actions{flex-wrap:wrap;gap:12px;display:flex}@media (max-width:760px){.processing-layout{grid-template-columns:1fr}.history-heading{flex-direction:column;align-items:flex-start}.history-row{grid-template-columns:1fr auto;gap:10px 18px;padding:20px 0}.history-course,.history-title{grid-column:1}.history-status{grid-area:1/2}.history-price,.history-open{display:none}.history-row>.export-wrap{grid-area:3/1}.history-row .delete-lecture{grid-area:2/2}.price-confirmation{flex-direction:column;align-items:flex-start}.landing-pricing{grid-template-columns:1fr;gap:36px;margin-bottom:96px}.legal-page{width:min(100% - 32px,760px);padding-top:48px}.legal-footer{flex-direction:column}.status-page{width:min(100% - 32px,1100px)}}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}