@layer theme,base;@layer academy-legacy{.lesson-app{background:var(--lesson-bg);min-height:100vh;color:var(--lesson-ink)}.lesson-header{border-bottom:1px solid var(--lesson-line);background:var(--lesson-panel);justify-content:space-between;align-items:center;gap:30px;height:88px;padding:0 32px;display:flex}.lesson-header .brand{flex-shrink:0;font-size:19px}.lesson-header .brand-symbol{width:36px;height:40px}.lesson-header-center{color:var(--lesson-muted);flex:1;align-items:center;gap:12px;font-size:14px;display:flex}.lesson-header-center span{color:var(--lesson-ink)}.lesson-header-actions{align-items:center;gap:14px;display:flex}.lesson-avatar{background:var(--surface);width:34px;height:34px;color:var(--ink-muted);border-radius:50%;place-items:center;font-size:14px;font-weight:700;display:grid}.lesson-workspace{grid-template-columns:260px minmax(400px,1fr) 280px;max-width:1720px;min-height:calc(100vh - 88px);margin:auto;display:grid}.academy-lesson-sidebar{border-right:1px solid var(--lesson-line);background:var(--lesson-panel);padding:27px 18px}.lesson-back{color:var(--lesson-muted);align-items:center;gap:9px;margin-bottom:34px;font-size:14px;display:flex}.lesson-kicker{letter-spacing:1.9px;color:var(--ink-muted);margin:0 0 14px;font-size:12px;font-weight:600}.academy-lesson-sidebar>.lesson-kicker{padding:0 10px;font-size:12px}.academy-lesson-sidebar>h2{letter-spacing:-.5px;margin:0 0 25px;padding:0 10px;font-size:20px;font-weight:600;line-height:1.4}.lesson-progress-label{color:var(--lesson-muted);justify-content:space-between;margin:0 10px 8px;font-size:14px;display:flex}.lesson-progress-label b{color:var(--ink-muted)}.lesson-progress-track{border-radius:var(--radius-md);background:var(--surface);height:4px;margin:0 10px;overflow:hidden}.lesson-progress-track span{background:var(--accent);height:100%;transition:width .3s;display:block}.lesson-progress-detail{color:var(--lesson-muted);margin:8px 10px 27px;font-size:14px}.lesson-module{margin-bottom:20px}.lesson-module h3{color:var(--ink);margin:0 10px 10px;font-size:14px;font-weight:500}.lesson-module>button{text-align:left;border-radius:var(--radius-sm);width:100%;color:var(--ink-muted);border:1px solid #0000;align-items:flex-start;gap:11px;padding:13px 10px;font-size:14px;line-height:1.5;transition:all .2s;display:flex}.lesson-module>button:hover{background:var(--surface-raised)}.lesson-module>button.active{background:var(--signal-wash,var(--signal-wash));border-color:color-mix(in srgb, var(--accent,var(--accent)) 35%, transparent);color:var(--signal-ink,var(--signal-ink));font-weight:600}:root[data-theme=dark] .lesson-module>button.active{background:color-mix(in srgb, var(--signal) 16%, transparent);border-color:color-mix(in srgb, var(--signal) 35%, transparent);color:#ff9d42}.lesson-status{border:1px solid var(--hairline);background:var(--lesson-card);border-radius:50%;flex-shrink:0;place-items:center;width:20px;height:20px;margin-top:1px;font-size:14px;display:grid}.active .lesson-status{background:var(--signal-wash,var(--signal-wash));border-color:var(--accent,var(--accent));color:var(--signal-ink,var(--signal-ink));font-weight:700}:root[data-theme=dark] .active .lesson-status{background:color-mix(in srgb, var(--signal) 20%, transparent);color:#ff9d42;border-color:#ff9d42}.completed .lesson-status{background:color-mix(in srgb, var(--success,#1f9d55) 14%, transparent);color:var(--success,#15803d);border-color:color-mix(in srgb, var(--success,#1f9d55) 40%, transparent);font-weight:700}:root[data-theme=dark] .completed .lesson-status{color:#4ade80;background:#22c55e2e;border-color:#22c55e66}.lesson-module small{color:var(--ink-muted);margin-top:5px;font-size:14px;font-weight:400;display:block}.academy-lesson-sidebar-footer{border:1px solid var(--hairline);border-radius:var(--radius-sm);color:var(--ink-muted);background:var(--surface);gap:10px;margin-top:36px;padding:15px 12px;display:flex}.academy-lesson-sidebar-footer p{margin:0;font-size:14px;line-height:1.9}.academy-lesson-sidebar-footer b{color:var(--ink-muted);font-weight:500}.lesson-main{min-width:0;padding:33px 38px 26px}.lesson-main-heading{justify-content:space-between;align-items:center;gap:15px;margin-bottom:24px;display:flex}.lesson-main-heading .lesson-kicker{letter-spacing:1.8px;margin-bottom:11px;font-size:12px}.lesson-kicker>span{color:var(--ink-muted);margin:0 9px}.lesson-main-heading h1{letter-spacing:-.8px;margin:0 0 12px;font-size:26px;font-weight:600;line-height:1.45}.lesson-meta{color:var(--ink-muted);align-items:center;gap:16px;font-size:14px;display:flex}.lesson-meta>span{align-items:center;gap:5px;display:flex}.lesson-meta .lesson-free{background:var(--surface);color:var(--ink-muted);border-radius:var(--radius-sm);padding:3px 7px;font-size:14px}.lesson-tabs>[data-slot=tabs-list]{border-bottom:1px solid var(--lesson-line);justify-content:flex-start;gap:16px;width:100%;height:44px;margin-bottom:0;padding:0;display:flex}.lesson-tabs [data-slot=tabs-trigger]{flex:initial;height:44px;color:var(--ink-muted);border-radius:0;gap:6px;padding:0 2px;font-size:14px}.lesson-tabs [data-slot=tabs-trigger][data-active]{color:var(--ink-muted)}.lesson-tabs [data-slot=tabs-trigger]:after{background:var(--surface);height:2px;bottom:0}.lesson-tabs [data-slot=tabs-trigger] :is(svg,.fa-icon){width:14px;height:14px}.lesson-tabs>[data-slot=tabs-content]{padding-top:21px}.lesson-article{color:var(--ink);line-height:1.85}.lesson-article-tools{color:var(--ink-muted);justify-content:space-between;align-items:center;margin-bottom:16px;font-size:14px;display:flex}.lesson-article-tools>div{align-items:center;gap:8px;display:flex}.lesson-article-tools button{background:var(--surface);border-radius:var(--radius-sm);min-width:27px;height:25px;color:var(--ink-muted);place-items:center;font-size:14px;display:grid}.lesson-intro{color:var(--ink);margin:0 0 20px;font-size:1em;line-height:1.95}.lesson-article h2{color:var(--lesson-ink);margin:27px 0 12px;font-size:1.1em;font-weight:600;line-height:1.6}.lesson-article p:not(.lesson-intro){color:var(--ink);font-size:.82em;line-height:1.95}.lesson-callout{background:var(--surface-raised,#f8fafc);border:1px solid var(--hairline);border-left:4px solid var(--accent,var(--accent));border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--ink);align-items:flex-start;gap:12px;margin:18px 0 24px;padding:16px 18px;display:flex;box-shadow:0 2px 8px #0f172a0a}.lesson-callout>:is(svg,.fa-icon){color:var(--accent,var(--accent));flex-shrink:0;margin-top:2px}.lesson-callout b{color:var(--ink);font-size:14px;font-weight:600}.lesson-callout p{color:var(--ink);margin:5px 0 0;font-size:14px}.lesson-formula{text-align:center;background:var(--surface);border-radius:var(--radius-sm);border:1px solid var(--hairline);flex-direction:column;gap:9px;margin-top:19px;padding:20px;display:flex}.lesson-formula>span{color:var(--ink-muted);letter-spacing:1.5px;font-size:14px}.lesson-formula code{color:var(--ink-muted);overflow-wrap:anywhere;font-size:15px;line-height:1.6}.lesson-takeaways{border-top:1px solid var(--lesson-line);color:var(--ink-muted);gap:12px;margin:12px 0 18px;padding:17px 0;display:flex}.lesson-takeaways>:is(svg,.fa-icon){flex-shrink:0;margin-top:3px}.lesson-takeaways b{color:var(--ink-muted);font-size:14px;font-weight:500}.lesson-takeaways p{margin:4px 0 0}.lesson-bottom-nav{border-top:1px solid var(--lesson-line);justify-content:space-between;align-items:center;gap:8px;margin-top:36px;padding-top:22px;display:flex}.lesson-bottom-nav button{height:35px;font-size:14px}.lesson-completion{background:var(--surface);border:1px solid var(--hairline);border-radius:var(--radius-sm);color:var(--ink-muted);align-items:center;gap:14px;margin-top:20px;padding:18px;font-size:14px;display:flex}.lesson-completion p{margin:4px 0 0;font-size:14px}.lesson-completion>a{align-items:center;gap:5px;margin-left:auto;display:flex}.lesson-right{border-left:1px solid var(--lesson-line);background:var(--lesson-panel);min-width:0;padding:21px 17px}.lesson-panel-tabs{border-bottom:1px solid var(--lesson-line);gap:2px;padding-bottom:16px;display:flex}.lesson-panel-tabs>button{border-radius:var(--radius-sm);height:55px;color:var(--ink-muted);flex-direction:column;flex:1;justify-content:center;align-items:center;gap:7px;font-size:14px;display:flex}.lesson-panel-tabs>button.active{background:var(--surface-raised);color:var(--ink-muted)}.lesson-panel-body{padding:22px 2px 0}.lesson-panel-heading{color:var(--ink);justify-content:space-between;align-items:center;display:flex}.lesson-panel-body h2{color:var(--lesson-ink);margin:0;font-size:14px;font-weight:500}.lesson-panel-body>p{color:var(--ink);margin:8px 0 20px;font-size:14px;line-height:1.8}.lesson-panel-body textarea{border:1px solid var(--hairline);background:var(--surface);border-radius:var(--radius-sm);width:100%;color:var(--ink);resize:vertical;outline:none;min-height:100px;padding:13px 12px;font-size:14px;line-height:2}.lesson-panel-body textarea:focus{border-color:var(--focus-ring);box-shadow:none}.lesson-panel-body .lesson-notepad{background-image:none;background-position:0 13px}.lesson-notepad::placeholder{color:var(--ink-muted)}.lesson-save-note{background:var(--surface);width:100%;height:32px;color:var(--ink-muted);margin-top:11px;font-size:14px}.lesson-save-note:hover{background:var(--surface-raised)}.lesson-panel-body>small{color:var(--ink);text-align:center;margin-top:9px;font-size:14px;display:block}.lesson-saved-notes{flex-direction:column;gap:12px;margin-top:23px;display:flex}.lesson-saved-notes>div:not(.notes-empty){background:var(--surface);border-radius:var(--radius-sm);border:1px solid var(--hairline);padding:14px 12px;position:relative}.lesson-saved-notes span{color:var(--ink-muted);font-size:14px}.lesson-saved-notes p{color:var(--ink-muted);white-space:pre-wrap;overflow-wrap:anywhere;margin:6px 0 0;font-size:14px;line-height:1.9}.lesson-saved-notes button{color:var(--ink-muted);padding:3px;position:absolute;top:8px;right:8px}.notes-empty{text-align:center;color:var(--ink-muted);flex-direction:column;align-items:center;padding:20px 0;display:flex}.notes-empty p{color:var(--ink-muted);font-size:14px}.lesson-right-tip{border-top:1px dashed var(--hairline);margin-top:30px;padding:21px 4px}.lesson-right-tip span{letter-spacing:1.5px;color:var(--ink-muted);font-size:14px}.lesson-right-tip p{color:var(--ink-muted);font-size:14px;line-height:1.95}.lesson-glossary>div{border-bottom:1px solid var(--lesson-line);padding:15px 0}.lesson-glossary dt{color:var(--ink-muted);font-size:14px;font-weight:600}.lesson-glossary dd{color:var(--ink-muted);margin:7px 0 0;font-size:14px;line-height:1.9}.lesson-text-link{color:var(--accent);align-items:center;gap:7px;margin-top:20px;font-size:14px;display:inline-flex}.tutor-avatar{border-radius:var(--radius-md);background:var(--surface);width:45px;height:45px;color:var(--ink-muted);place-items:center;margin-bottom:17px;display:grid}.tutor-suggestions{flex-wrap:wrap;gap:7px;display:flex}.tutor-suggestions button{border:1px solid var(--hairline);border-radius:var(--radius-sm);color:var(--ink-muted);padding:6px 8px;font-size:14px}.tutor-messages{flex-direction:column;gap:10px;max-height:480px;margin:18px 0;display:flex;overflow:auto}.tutor-messages>div{border-radius:var(--radius-sm);white-space:pre-wrap;overflow-wrap:anywhere;padding:11px;font-size:14px;line-height:1.9}.tutor-messages .user{background:var(--surface);color:var(--ink-muted);margin-left:17px}.tutor-messages .tutor{background:var(--surface);color:var(--ink-muted);margin-right:8px}.tutor-form{border:1px solid var(--hairline);border-radius:var(--radius-sm);gap:5px;padding:5px;display:flex}.tutor-form input{background:0 0;outline:none;flex:1;min-width:0;padding:3px 5px;font-size:14px}.interactive-heading{margin:9px 0 22px}.interactive-heading h2{letter-spacing:-.4px;margin:12px 0 6px;font-size:21px;font-weight:500}.interactive-heading p{color:var(--ink);font-size:14px}.interactive-demo{border:1px solid var(--hairline);border-radius:var(--radius-md);background:var(--surface-raised);overflow:hidden}.lab-canvas{background:var(--surface);position:relative;overflow:hidden}.lab-canvas>:is(svg,.fa-icon){width:100%;height:auto;max-height:350px;display:block}.lab-canvas-label{letter-spacing:1.3px;color:var(--ink-muted);z-index:1;pointer-events:none;align-items:center;gap:5px;font-size:14px;display:flex;position:absolute;top:13px;left:15px}.lab-canvas-hint{text-align:center;color:var(--ink-muted);pointer-events:none;font-size:14px;position:absolute;bottom:10px;left:0;right:0}.lab-metrics{border-top:1px solid var(--hairline);border-bottom:1px solid var(--hairline);justify-content:space-around;gap:8px;padding:13px 5px;display:flex}.lab-metrics>span{text-align:center;color:var(--ink-muted);letter-spacing:.3px;flex-direction:column;gap:4px;font-size:14px;display:flex}.lab-metrics b{color:var(--ink-muted);letter-spacing:0;font-size:14px;font-weight:500;font-family:var(--type-sans)}.lab-controls{flex-wrap:wrap;align-items:center;gap:20px;padding:16px 18px;display:flex}.lab-range{flex-direction:column;flex:1;gap:9px;min-width:90px;display:flex}.lab-range>span{color:var(--ink-muted);justify-content:space-between;align-items:center;gap:5px;font-size:14px;display:flex}.lab-range b{color:var(--ink-muted);font-size:14px;font-weight:500}.lab-range input{accent-color:var(--accent);cursor:pointer;width:100%;height:4px}.lab-explanation{color:var(--ink-muted);margin:0;padding:0 18px 16px;font-size:14px;line-height:1.8}.lab-actions{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.lab-actions button{font-size:14px}.lab-actions>span{color:var(--ink-muted);margin-left:auto;font-size:14px}.lab-actions.padded{padding:15px 18px}.lab-select{color:var(--ink-muted);align-items:center;gap:12px;min-width:45%;font-size:14px;display:flex}.lab-select select{border:1px solid var(--hairline);border-radius:var(--radius-sm);background:var(--surface);color:var(--ink-muted);flex:1;padding:6px 24px 6px 10px;font-size:14px}.sorting-stage{height:285px;padding:50px 32px 35px}.sorting-bars{justify-content:center;align-items:flex-end;gap:16px;height:100%;display:flex}.sorting-bar{background:var(--vector);border-radius:5px 5px 0 0;justify-content:center;width:45px;padding-top:7px;transition:height .25s,background .25s;display:flex;position:relative}.sorting-bar b{color:var(--ink-muted);font-size:14px;font-weight:500}.sorting-bar>span{text-align:center;color:var(--ink-muted);font-size:14px;position:absolute;bottom:-24px;left:0;right:0}.sorting-bar.comparing,.sorting-bar.sorted{background:var(--vector)}.neural-flow{animation:2s linear infinite neural-pulse}@keyframes neural-pulse{to{stroke-dashoffset:-40px}}.class-stage{flex-direction:column;align-items:center;min-height:302px;padding:43px 20px 22px;display:flex}.class-node{border:1px solid var(--hairline);background:var(--surface);border-radius:var(--radius-sm);text-align:center;width:190px;box-shadow:none;overflow:hidden}.class-node>span{color:var(--ink-muted);padding-top:7px;font-size:14px;display:block}.class-node>b{color:var(--ink-muted);padding:3px 8px 8px;font-size:14px;font-weight:500;display:block}.class-node code{border-top:1px solid var(--hairline);color:var(--ink-muted);padding:8px;font-size:14px;display:block}.class-node.active{border-color:var(--hairline);background:var(--surface-raised)}.class-connector{color:var(--ink-muted);padding:12px;font-size:14px}.class-stage>p{color:var(--ink-muted);text-align:center;margin:15px 0 0;font-size:14px}.embedding-point{cursor:pointer;outline:none}.embedding-point:focus circle{stroke:var(--focus-ring);stroke-width:3px}.neighbor-list{flex-wrap:wrap;gap:7px;padding:0 18px 13px;display:flex}.neighbor-list>span{background:var(--surface);border-radius:var(--radius-sm);color:var(--ink-muted);padding:6px 9px;font-size:14px}.neighbor-list b{color:var(--ink-muted);margin-left:8px;font-size:14px;font-weight:500}.lesson-video{margin-top:5px}.video-stage{background:var(--surface);min-height:370px;color:var(--ink-muted);text-align:center;border-radius:11px 11px 0 0;flex-direction:column;align-items:center;padding:25px 25px 28px;display:flex;position:relative;overflow:hidden}.video-stage>[data-slot=badge]{border-color:var(--hairline);color:var(--ink-muted);background:var(--surface);font-size:14px;position:absolute;top:12px;left:13px}.video-orbit{place-items:center;width:120px;height:120px;margin:20px 0 5px;display:grid;position:relative}.video-orbit>span,.video-orbit>i{border:1px solid var(--hairline);border-radius:50%;width:100px;height:100px;position:absolute;transform:rotate(30deg)scaleX(.5)}.video-orbit>i{width:90px;transform:rotate(-30deg)scaleX(.5)}.video-orbit>b{font-family:var(--type-sans);color:var(--ink-muted);font-size:47px;font-weight:300}.video-stage>p{letter-spacing:2px;color:var(--ink-muted);margin:0 0 14px;font-size:14px}.video-stage h3{max-width:450px;margin:0 0 10px;font-size:23px;font-weight:500;line-height:1.5}.video-stage>span{color:var(--ink-muted);max-width:480px;font-size:14px;line-height:1.9}.video-stage>button{background:var(--surface);border-color:var(--hairline);color:var(--ink-muted);margin-top:19px;font-size:14px}.video-control{background:var(--surface);color:var(--ink-muted);border-radius:0 0 10px 10px;align-items:center;gap:11px;padding:14px 16px;display:flex}.video-control input{min-width:20px;accent-color:var(--accent);flex:1;height:3px}.video-control>span{white-space:nowrap;font-size:14px}.video-control select{background:var(--surface);border-radius:var(--radius-sm);color:var(--ink-muted);padding:3px;font-size:14px}.video-transcript h3{margin:24px 0 13px;font-size:14px;font-weight:500}.video-transcript>button{text-align:left;width:100%;color:var(--ink-muted);border-radius:var(--radius-sm);gap:13px;padding:10px 12px;font-size:14px;line-height:1.9;display:flex}.video-transcript>button.active{background:var(--surface-raised);color:var(--ink-muted)}.video-transcript>button span{color:var(--ink-muted);padding-top:3px;font-size:14px}.lesson-code-lab{padding-top:2px}.lesson-code-lab>h3{margin:25px 0 15px;font-size:14px;font-weight:500;line-height:1.8}.code-editor{background:var(--surface);border-radius:var(--radius-sm);border:1px solid var(--hairline);overflow:hidden}.code-editor>div{color:var(--ink-muted);border-bottom:1px solid var(--hairline);justify-content:space-between;align-items:center;padding:12px 15px;font-size:14px;display:flex}.code-editor>div>span:first-child{align-items:center;gap:8px;display:flex}.code-editor textarea{resize:vertical;width:100%;color:var(--ink-muted);font-family:var(--type-mono);background:0 0;border:0;outline:none;padding:20px;font-size:14px;line-height:1.8}.code-editor footer{background:var(--surface);justify-content:space-between;align-items:center;gap:12px;padding:12px;display:flex}.code-editor footer>span{color:var(--ink-muted);font-size:14px}.code-editor footer button{font-size:14px}.code-output{background:var(--surface);border:1px solid var(--hairline);border-radius:var(--radius-sm);margin:15px 0;padding:14px 16px;position:relative}.code-output>span{color:var(--ink-muted);letter-spacing:1.5px;align-items:center;gap:7px;font-size:14px;display:flex}.code-output pre{color:var(--ink-muted);white-space:pre-wrap;overflow-wrap:anywhere;margin:15px 0 3px;font-size:14px;line-height:1.8}.code-success{color:var(--success);position:absolute;top:15px;right:15px}.lesson-quiz{text-align:center;padding:18px 0}.quiz-symbol{background:var(--surface);border:1px solid var(--hairline);border-radius:var(--radius-lg);width:63px;height:63px;color:var(--ink-muted);place-items:center;margin:0 auto 20px;display:grid}.lesson-quiz h2{letter-spacing:-.5px;margin:20px 0 10px;font-size:24px;font-weight:500}.lesson-quiz>p{color:var(--ink-muted);margin-bottom:25px;font-size:14px;line-height:1.8}.quiz-options{text-align:left;flex-direction:column;gap:11px;margin-bottom:25px;display:flex}.quiz-options>button{border:1px solid var(--hairline);border-radius:var(--radius-sm);color:var(--ink-muted);text-align:left;background:var(--surface);align-items:center;gap:13px;padding:17px 18px;font-size:14px;line-height:1.8;display:flex}.quiz-options>button>span{border:1px solid var(--hairline);border-radius:50%;flex-shrink:0;place-items:center;width:25px;height:25px;font-size:14px;display:grid}.quiz-options>button.selected{border-color:var(--hairline);background:var(--surface-raised);color:var(--ink-muted)}.quiz-options>button.correct,.quiz-options>button.incorrect{border-color:var(--hairline);background:var(--surface)}.quiz-options>button>:is(svg,.fa-icon){color:var(--ink-muted);flex-shrink:0;margin-left:auto}.lesson-quiz-feedback{text-align:left;background:var(--surface);border:1px solid var(--hairline);border-radius:var(--radius-sm);color:var(--ink-muted);margin-top:20px;padding:17px;font-size:14px}.lesson-quiz-feedback.passed{background:var(--surface);border-color:var(--hairline);color:var(--success)}.lesson-quiz-feedback p{margin:6px 0 0;font-size:14px;line-height:1.8}.lesson-mobile-toolbar,.lesson-focus .academy-lesson-sidebar,.lesson-focus .lesson-right{display:none}.lesson-focus 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.lab-canvas>:is(svg,.fa-icon){max-height:none}.playground-library{margin-top:29px}.playground-library-heading{margin-bottom:19px;display:block}.playground-library-heading h2{font-size:20px}.playground-search{width:100%;margin-top:18px}.playground-grid{gap:12px}.playground-card-art{height:112px}.playground-card-content{padding:12px 11px 15px}.playground-card-content h3,.playground-card-content>span,.playground-card-content p{font-size:14px}.playground-card-content h3>:is(svg,.fa-icon){width:12px}.playground-card-art>:is(svg,.fa-icon){width:43px;height:43px}.playground-number{font-size:14px}.playground-card-art>[data-slot=badge]{height:16px;font-size:14px;top:7px;left:7px}.playground-footer-note{align-items:flex-start;padding:18px 15px}.playground-footer-note>:is(svg,.fa-icon){flex-shrink:0}.playground-footer-note p{font-size:14px}.playground-empty{text-align:center;padding:40px 15px}}@media (prefers-reduced-motion:reduce){.neural-flow{animation:none}.sorting-bar,.playground-card,.lesson-progress-track span{transition:none}}.lesson-paragraph{margin-bottom:23px;font-size:15px;line-height:2.1;color:var(--ink)!important}.lesson-example{border-radius:0 12px 12px 0;gap:16px;margin-block:28px;padding:23px;display:flex;box-shadow:0 2px 8px #0f172a0a;background:var(--surface-raised,#f8fafc)!important;border:1px solid var(--hairline)!important;border-left:4px solid var(--accent,var(--accent))!important;color:var(--ink)!important}.lesson-example h3,.lesson-example p{line-height:1.9;color:var(--ink)!important}.lesson-example>:is(svg,.fa-icon){color:var(--accent,var(--accent))!important}.lesson-nav-item.active{background:var(--signal-wash,var(--signal-wash))!important;border-color:color-mix(in srgb, var(--accent,var(--accent)) 30%, transparent)!important;color:var(--signal-ink,var(--signal-ink))!important;font-weight:600!important}:root[data-theme=dark] .lesson-nav-item.active{background:color-mix(in srgb, var(--signal) 16%, transparent)!important;border-color:color-mix(in srgb, var(--signal) 35%, transparent)!important;color:#ff9d42!important}.lesson-number.done{background:color-mix(in srgb, var(--success,#1f9d55) 14%, transparent)!important;color:var(--success,#15803d)!important;border-color:color-mix(in srgb, var(--success,#1f9d55) 40%, transparent)!important;font-weight:700!important}:root[data-theme=dark] .lesson-number.done{color:#4ade80!important;background:#22c55e2e!important;border-color:#22c55e66!important}.quiz-option.selected{border-color:var(--accent,var(--accent))!important;background:var(--signal-wash,var(--signal-wash))!important;color:var(--ink)!important;font-weight:600!important}.quiz-option.correct{background:color-mix(in srgb, var(--success,#1f9d55) 12%, var(--surface))!important;border-color:var(--success,#15803d)!important;color:var(--ink)!important}.quiz-feedback.success{background:color-mix(in srgb, var(--success,#1f9d55) 10%, var(--surface))!important;border:1px solid color-mix(in srgb, var(--success,#1f9d55) 35%, transparent)!important;color:#15803d!important}.quiz-feedback.retry{background:color-mix(in srgb, var(--danger,#e0443e) 10%, var(--surface))!important;border:1px solid color-mix(in srgb, var(--danger,#e0443e) 35%, transparent)!important;color:#b91c1c!important}.completion-banner{border-radius:var(--radius-sm);gap:20px;margin-top:25px;padding:25px;display:flex;box-shadow:0 4px 16px #0f172a0d;background:var(--surface)!important;border:1.5px solid var(--hairline)!important;color:var(--ink)!important}}@layer components,utilities;