html{-webkit-text-size-adjust:100%}body{background:var(--app-surface);margin:0}*,:before,:after{box-sizing:border-box}.lwt{--app-bar-h:4rem}.app-wrap{max-width:72rem;margin:0 auto;padding:0 1rem}@media (width>=48rem){.app-wrap{padding:0 2rem}}body.app-tint{background:var(--app-canvas)}.app-tint .lwt-btn-secondary{background:#fff}.app-bar{z-index:10;border-bottom:1px solid var(--app-line);background:var(--app-surface,#fff);position:sticky;top:0}.app-bar .app-wrap{display:block}.app-bar-row{min-height:var(--app-bar-h);flex-wrap:nowrap;align-items:center;gap:.5rem;display:flex}.app-bar-name{letter-spacing:-.01em;min-width:0;min-height:44px;color:var(--lwt-ink);flex:auto;align-items:center;gap:.5rem;margin-right:auto;font-size:.9375rem;font-weight:700;text-decoration:none;display:inline-flex}.app-bar-mark{background:var(--lwt-ink);color:#fff;border-radius:8px;flex:none;place-items:center;width:1.75rem;height:1.75rem;font-size:.8125rem;font-weight:700;display:inline-grid}.app-bar-long{display:none}.app-bar a.app-bar-link{min-height:44px;color:var(--lwt-ink-soft);transition:background-color var(--app-fast) var(--app-ease), color var(--app-fast) var(--app-ease);border-radius:999px;align-items:center;padding:0 .875rem;font-size:.9375rem;font-weight:500;text-decoration:none;display:inline-flex}.app-bar a.app-bar-link:hover{color:var(--lwt-ink);background:var(--app-canvas)}.app-bar a.app-bar-link[aria-current=page]{color:var(--lwt-ink);background:var(--lwt-mist);font-weight:600}.app-bar .cl-userButtonTrigger,.app-bar .cl-rootBox{flex:none;margin-left:.25rem}.app-bar button[data-clerk-unstyled-id]:empty,.app-bar-links{display:none}.app-menu{flex:none;position:relative}.app-menu-summary{border:1px solid var(--app-line);background:var(--app-surface);min-height:44px;color:var(--lwt-ink);cursor:pointer;border-radius:999px;align-items:center;padding:0 .875rem;font-size:.9375rem;font-weight:600;list-style:none;display:inline-flex}.app-menu-summary::-webkit-details-marker{display:none}.app-menu-summary::marker{content:""}.app-menu[open]>.app-menu-summary{background:var(--lwt-mist)}.app-menu-panel{z-index:20;border:1px solid var(--app-line);border-radius:var(--app-radius-sm);background:var(--app-surface);min-width:12rem;box-shadow:var(--app-lift);gap:.125rem;padding:.375rem;display:grid;position:absolute;top:calc(100% + .5rem);right:0}.app-menu-panel .app-bar-link{border-radius:10px}@media (width>=48rem){.app-bar-name{flex:0 auto;font-size:1rem}.app-bar-long{display:inline}.app-bar-short{display:none}.app-bar-links{align-items:center;gap:.25rem;display:flex}.app-menu{display:none}}.app-skip{z-index:40;background:var(--lwt-ink);color:#fff;min-height:44px;transition:transform var(--app-fast) var(--app-ease);border-radius:999px;align-items:center;padding:0 1rem;font-weight:600;text-decoration:none;display:inline-flex;position:fixed;top:.5rem;left:.5rem;transform:translateY(-200%)}.app-skip:focus{transform:translateY(0)}#main{scroll-margin-top:var(--app-bar-h)}.lwt-inapp-note{background:var(--lwt-mist);color:var(--lwt-ink);border-radius:8px;flex:100%;margin:.75rem 1rem;padding:.625rem .75rem;font-size:1rem;line-height:1.5}.app-bar .lwt-inapp-note{margin:0 0 .75rem}.lwt-inapp-note[hidden]{display:none}.lwt-inapp-note button{align-items:center;min-height:44px;display:inline-flex}.app-footer{border-top:1px solid var(--app-line);margin-top:4rem}.app-footer .app-wrap{color:var(--lwt-ink-soft);padding-top:1.5rem;padding-bottom:1.5rem;font-size:.9375rem}.app-footer a{color:var(--lwt-signal)}.app-footer a,.app-ask-hint a{align-items:center;min-height:24px;display:inline-flex}.app-page{padding-top:2.5rem;padding-bottom:5rem}@media (width>=64rem){.app-page{padding-top:3.5rem}}.app-h1{letter-spacing:-.03em;margin:0 0 .5rem;font-size:clamp(2rem,1.6rem + 1.4vw,2.75rem);font-weight:700;line-height:1.1}.app-h2{letter-spacing:-.015em;margin:3rem 0 1rem;font-size:1.25rem;font-weight:650}.app-lede{color:var(--lwt-ink-soft);max-width:60ch;margin:0 0 2rem;font-size:1.0625rem;line-height:1.55}.app-panel{border:1px solid var(--app-line);border-radius:var(--app-radius);background:var(--app-surface);box-shadow:var(--app-lift);padding:1.5rem}@media (width>=48rem){.app-panel{padding:1.75rem 2rem}}.app-pill{background:var(--app-canvas);border:1px solid var(--app-line);min-height:1.625rem;color:var(--lwt-ink-soft);white-space:nowrap;border-radius:999px;align-items:center;padding:0 .625rem;font-size:.8125rem;font-weight:600;display:inline-flex}.app-pill-signal{background:var(--lwt-mist);color:var(--lwt-signal);border-color:#0000}.app-strip{gap:3px;margin:1rem 0 0;display:flex}.app-strip-seg{background:var(--app-line);border-radius:3px;flex:1 1 0;height:6px}.app-strip-seg.is-done{background:var(--lwt-signal)}.app-strip-seg.is-next{background:var(--lwt-signal);opacity:.35}.app-strip-dark .app-strip-seg{background:#ffffff29}.app-strip-dark .app-strip-seg.is-done{background:#fff}.app-strip-dark .app-strip-seg.is-next{opacity:1;background:#8fa0ff}.app-resume{background:var(--lwt-ink);color:#fff;border-radius:20px;gap:1.5rem;margin:0 0 1rem;padding:1.75rem;display:grid}@media (width>=56rem){.app-resume{grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);align-items:end;gap:3rem;padding:2.5rem}}.app-resume-kicker{color:#b8c1ff;margin:0 0 .75rem;font-size:.9375rem;font-weight:600}.app-resume-title{font-family:var(--lwt-serif);letter-spacing:-.01em;margin:0;font-size:clamp(1.625rem,1.3rem + 1.2vw,2.25rem);font-weight:500;line-height:1.2}.app-resume-meta{color:#ffffffb8;margin:.75rem 0 0;font-size:.9375rem}.app-resume-side .app-strip{margin:0 0 1.25rem}.app-resume-btn{min-height:48px;color:var(--lwt-ink);background:#fff;border-radius:999px;justify-content:center;align-items:center;padding:0 1.5rem;font-weight:600;text-decoration:none;transition:background-color .15s;display:inline-flex}.app-resume-btn:hover{background:#e6e9ff}.app-resume :focus-visible{outline-color:#fff}.app-tile{background:var(--lwt-ink);color:#fff;justify-content:space-between;align-items:flex-end;gap:1rem;min-height:6.5rem;padding:1.25rem 1.5rem;display:flex}.app-tile-n{letter-spacing:-.03em;font-variant-numeric:tabular-nums;font-size:2.75rem;font-weight:700;line-height:1}.app-tile-count{color:#ffffffb8;font-size:.875rem}.app-tile-sm{border-radius:var(--app-radius-sm);flex-direction:column;justify-content:flex-end;align-items:flex-start;gap:.5rem;width:7rem;min-height:6.5rem;padding:1rem}.app-tile-sm .app-tile-n{font-size:2rem}.app-tile-sm .app-tile-count{font-size:.8125rem}.app-courses{gap:1rem;margin:0;padding:0;list-style:none;display:grid}@media (width>=48rem){.app-courses{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (width>=72rem){.app-courses{grid-template-columns:repeat(3,minmax(0,1fr))}}.app-course{border:1px solid var(--app-line);border-radius:var(--app-radius);background:var(--app-surface);min-height:12rem;box-shadow:var(--app-lift);flex-direction:column;display:flex;overflow:hidden}.app-course-body{flex-direction:column;flex:auto;padding:1.5rem;display:flex}.app-course-title{letter-spacing:-.015em;margin:0;font-size:1.1875rem;font-weight:650;line-height:1.3}.app-course-title a{color:var(--lwt-ink);text-decoration:none}.app-course-title a:hover{color:var(--lwt-signal)}.app-course-status{color:var(--lwt-ink-soft);margin:.5rem 0 0;font-size:.875rem}.app-course .app-strip{margin:.875rem 0 0}.app-course-next{margin:auto 0 0;padding-top:1.25rem;font-size:.9375rem}.app-coming{margin:1.5rem 0 0}.app-coming-title{letter-spacing:-.015em;margin:0 0 .75rem;font-size:1.0625rem;font-weight:650}.app-coming-list{margin:0;padding:0;list-style:none}.app-coming-item{border-top:1px solid var(--app-line);color:var(--lwt-ink);grid-template-columns:5rem minmax(0,1fr);gap:.25rem .75rem;padding:.5rem 0;display:grid}.app-coming-item:first-child{border-top:0;padding-top:0}.app-coming-n{color:var(--lwt-ink-soft);font-variant-numeric:tabular-nums;font-size:.9375rem}.app-coming-name{font-weight:600}.app-course-head{border:1px solid var(--app-line);border-radius:var(--app-radius);background:var(--app-surface);box-shadow:var(--app-lift);gap:1.5rem;margin:0 0 1.5rem;padding:1.75rem;display:grid}@media (width>=56rem){.app-course-head{grid-template-columns:minmax(0,1fr) auto;align-items:end;gap:3rem;padding:2.25rem 2.5rem}}.app-course-head-main{flex-direction:column;gap:1.25rem;display:flex}@media (width>=48rem){.app-course-head-main{flex-direction:row;align-items:flex-start;gap:1.5rem}}.app-course-head .app-h1{font-size:clamp(1.75rem,1.4rem + 1.2vw,2.375rem)}.app-course-facts{color:var(--lwt-ink-soft);flex-wrap:wrap;gap:.375rem 1.25rem;margin:.75rem 0 0;font-size:.9375rem;display:flex}.app-course-head .app-strip{max-width:36rem;margin-top:1.25rem}.app-course-head-actions{flex-wrap:wrap;gap:.75rem;display:flex}.app-lessons{border:1px solid var(--app-line);border-radius:var(--app-radius);background:var(--app-surface);box-shadow:var(--app-lift);margin:0;padding:.375rem;list-style:none}.app-lesson+.app-lesson{border-top:1px solid var(--app-line)}.app-lesson a{color:var(--lwt-ink);border-radius:12px;grid-template-columns:2.25rem minmax(0,1fr);gap:.125rem 1rem;padding:1rem;text-decoration:none;transition:background-color .15s;display:grid}.app-lesson a:hover{background:var(--app-canvas)}.app-lesson-n{border:1px solid var(--app-line);width:2.25rem;height:2.25rem;color:var(--lwt-ink-soft);font-variant-numeric:tabular-nums;border-radius:999px;grid-row:span 2;place-items:center;font-size:.875rem;font-weight:600;display:grid}.app-lesson.is-done .app-lesson-n{background:var(--lwt-signal);color:#fff;border-color:#0000}.app-lesson.is-next .app-lesson-n{border-color:var(--lwt-signal);color:var(--lwt-signal)}.app-lesson.is-next a{background:#f6f7ff}.app-lesson-title{font-weight:600;line-height:1.4}.app-lesson-meta{color:var(--lwt-ink-soft);flex-wrap:wrap;align-items:center;gap:.5rem;font-size:.875rem;display:flex}.app-course-grid{grid-template-columns:minmax(0,1fr);gap:2rem;display:grid}@media (width>=80rem){.app-course-grid{grid-template-columns:minmax(0,1fr) 22rem;gap:3.5rem}}.app-course-main{min-width:0}.app-crumb{margin:0 0 1rem;font-size:.9375rem}.app-crumb a{color:var(--lwt-ink-soft)}.app-next{grid-template-columns:minmax(0,1fr);gap:1rem;margin-top:3rem;display:grid}@media (width>=48rem){.app-next{grid-template-columns:repeat(2,minmax(0,1fr))}}.app-next-blank{display:none}@media (width>=48rem){.app-next-blank{display:block}}.app-next-card{border:1px solid var(--app-line);border-radius:var(--app-radius);background:var(--app-surface);min-height:44px;color:var(--lwt-ink);transition:border-color var(--app-fast) var(--app-ease);flex-direction:column;gap:.25rem;padding:1rem 1.25rem;text-decoration:none;display:flex}.app-next-card:hover{border-color:#c3caf5}.app-next-label{color:var(--lwt-ink-soft);font-size:.8125rem;font-weight:600}.app-next-title{font-weight:600;line-height:1.35}.app-done{color:var(--lwt-go);margin-left:.5rem;font-weight:600}.app-sr{clip:rect(0 0 0 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.app-course-next a,.app-continue a{color:var(--lwt-signal);font-weight:600;text-decoration:none}.app-course-next a:hover,.app-continue a:hover{text-decoration:underline}.app-continue{margin:1.5rem 0 0}.lwt-check{margin:1.75rem 0}.lwt-article .lwt-check{border:1px solid var(--app-line);border-radius:var(--app-radius-sm);padding:1.25rem 1.5rem}.lwt-check-q{font-family:var(--lwt-serif);margin:0 0 .5rem;font-size:1.1875rem;line-height:1.7}.lwt-check-a{border-top:1px solid var(--lwt-rule);padding-top:.25rem}.lwt-check-a summary{min-height:44px;font-family:var(--lwt-sans);color:var(--lwt-signal);cursor:pointer;align-items:center;font-size:.9375rem;font-weight:600;list-style:none;display:inline-flex}.lwt-check-a summary::-webkit-details-marker{display:none}.lwt-check-answer{border-left:3px solid var(--lwt-rule);font-family:var(--lwt-serif);color:var(--lwt-ink-soft);margin:.25rem 0 .75rem;padding-left:1rem;font-size:1.1875rem;line-height:1.7}.lwt-check-choice{font-family:var(--lwt-sans);flex-wrap:wrap;align-items:center;gap:.75rem;margin:.75rem 0 0;display:flex}.lwt-check-btn{border:1px solid var(--app-line);background:var(--app-surface);min-height:44px;font-family:var(--lwt-sans);color:var(--lwt-ink-soft);cursor:pointer;border-radius:999px;justify-content:center;align-items:center;padding:.5rem 1rem;font-size:.875rem;font-weight:600;line-height:1.2;transition:border-color .15s,color .15s,background-color .15s;display:inline-flex}.lwt-check-btn:hover{border-color:var(--lwt-signal);color:var(--lwt-signal)}.lwt-check-btn-on{border-color:var(--lwt-signal);background:var(--lwt-mist);color:var(--lwt-signal)}.lwt-check-btn:disabled{cursor:default;opacity:.6}.lwt-check-status,.lwt-notes-status,.lwt-complete-status{min-height:1.25rem;font-family:var(--lwt-sans);color:var(--lwt-ink-soft);font-size:.875rem;display:block}.lwt-notes{border:1px solid var(--app-line);border-radius:var(--app-radius);background:var(--app-surface);max-width:68ch;margin-top:3rem;padding:1.5rem}.lwt-notes-title{letter-spacing:-.01em;margin:0 0 .25rem;font-size:1.25rem;font-weight:600}.lwt-notes-help{color:var(--lwt-ink-soft);margin:0 0 .75rem;font-size:.875rem}.lwt-notes-box{border:1px solid var(--app-field-line);border-radius:var(--app-radius-sm);background:var(--app-surface);width:100%;min-height:9rem;font-family:var(--lwt-sans);color:var(--lwt-ink);resize:vertical;padding:.75rem;font-size:1rem;line-height:1.6;display:block}.lwt-complete{flex-wrap:wrap;align-items:center;gap:.75rem 1rem;margin-top:2rem;display:flex}.lwt-complete-status{margin:0}.lwt-complete .lwt-complete-btn{transition:background-color var(--app-med) var(--app-ease), border-color var(--app-med) var(--app-ease), color var(--app-med) var(--app-ease)}.lwt-complete-btn[data-completed="1"],.lwt-complete-btn[data-completed="1"]:hover{border-color:var(--lwt-go);color:var(--lwt-go);background:0 0}.lwt-complete-tick{display:none}.lwt-complete-btn[data-completed="1"] .lwt-complete-tick{margin-right:.4rem;display:inline-block}.lwt-complete-undo{min-height:44px;font-family:var(--lwt-sans);color:var(--lwt-ink-soft);text-underline-offset:2px;cursor:pointer;background:0 0;border:0;align-items:center;padding:0;font-size:.9375rem;font-weight:600;text-decoration:underline;display:inline-flex}.lwt-complete-undo:hover{color:var(--lwt-signal)}.lwt-complete-undo[hidden]{display:none}.app-note-lesson{margin:0 0 .375rem;font-weight:600}.app-note-lesson a{color:var(--lwt-ink);text-decoration:none}.app-note-lesson a:hover{color:var(--lwt-signal)}.app-note-body{color:var(--lwt-ink-soft);white-space:pre-wrap;overflow-wrap:anywhere;margin:0;line-height:1.6}.app-ask-note{background:var(--lwt-mist);border-radius:12px;max-width:46rem;margin:0 0 1.25rem;padding:.875rem 1.125rem}.app-ask-form{max-width:46rem;margin:0 0 2rem}.app-ask-label{margin:0 0 .375rem;font-weight:600;display:block}.app-ask-composer{border:1px solid var(--app-field-line);background:var(--app-surface);box-shadow:var(--app-lift);transition:border-color var(--app-fast) var(--app-ease), box-shadow var(--app-fast) var(--app-ease);border-radius:20px}.app-ask-composer:focus-within{border-color:var(--lwt-signal);box-shadow:0 0 0 4px #2f45d81f}.app-ask-box{width:100%;min-height:7rem;font-family:var(--lwt-sans);color:var(--lwt-ink);resize:vertical;background:0 0;border:0;border-radius:20px 20px 0 0;padding:1.25rem 1.25rem .5rem;font-size:1.0625rem;line-height:1.6;display:block}.app-ask-box:focus,.app-ask-box:focus-visible{outline:none}.app-ask-box::placeholder{color:var(--app-placeholder)}.app-ask-actions{justify-content:flex-end;align-items:center;gap:1rem;margin:0;padding:.5rem .75rem .75rem 1.25rem;display:flex}.app-ask-actions .app-ask-status{margin-right:auto}.app-ask-actions .lwt-btn{border-radius:999px;padding:.625rem 1.5rem}.app-ask-status{min-height:1.25rem;color:var(--lwt-ink-soft);font-size:.875rem;display:block}.app-ask-examples{flex-wrap:wrap;align-items:center;gap:.5rem;margin:1rem 0 0;display:flex}.app-ask-examples-label{color:var(--lwt-ink-soft);flex:100%;margin:0 0 .125rem;font-size:.875rem}.app-chip{border:1px solid var(--app-line);background:var(--app-surface);min-height:44px;font-family:var(--lwt-sans);color:var(--lwt-ink);text-align:left;cursor:pointer;transition:border-color var(--app-fast) var(--app-ease), color var(--app-fast) var(--app-ease);border-radius:999px;align-items:center;padding:.5rem .875rem;font-size:.875rem;display:inline-flex}.app-chip:hover{border-color:var(--lwt-signal);color:var(--lwt-signal)}.app-ask-answer{scroll-margin-top:var(--app-bar-h);border-radius:var(--app-radius);background:var(--app-surface);max-width:46rem;box-shadow:var(--app-lift);border:1px solid #cdd4fb;margin:0 0 2.5rem;padding:1.5rem 1.75rem}.app-ask-a{overflow-wrap:anywhere;font-family:var(--lwt-serif);margin:0;font-size:1.1875rem;line-height:1.7}.app-ask-a a{color:var(--lwt-signal);font-family:var(--lwt-sans);margin:0 -.15em;padding:.25em .15em;font-size:.875em;font-weight:600;text-decoration:none}.app-ask-a a:hover{text-decoration:underline}.app-ask-sources{border-top:1px solid var(--app-line);margin:1rem 0 0;padding:.875rem 0 0 1.5rem;font-size:.9375rem}.app-ask-sources li{padding:.25rem 0}.app-ask-sources a{min-height:24px;color:var(--lwt-signal);font-weight:500;text-decoration:none;display:inline-block}.app-ask-sources a:hover{text-decoration:underline}.app-ask-caption{color:var(--lwt-ink-soft);margin:.75rem 0 0;font-size:.8125rem}.app-ask-hint{margin:.5rem 0 0;font-size:.875rem}.app-ask-hint a{color:var(--lwt-signal);font-weight:600;text-decoration:none}.app-ask-hint a:hover{text-decoration:underline}.app-ask-history{max-width:46rem;padding-top:.5rem}.app-ask-h2{letter-spacing:-.015em;margin:1rem 0;font-size:1.25rem;font-weight:650}.app-ask-empty{border:1px dashed var(--app-line);border-radius:var(--app-radius);color:var(--lwt-ink-soft);text-align:center;margin:0;padding:2rem 1.5rem}.app-ask-item{border:1px solid var(--app-line);border-radius:var(--app-radius);background:var(--app-surface);box-shadow:var(--app-lift);margin:0 0 1rem;padding:1.5rem 1.75rem}.app-ask-q{letter-spacing:-.01em;margin:0 0 .75rem;font-size:1.0625rem;font-weight:650}.app-ask-when{color:var(--lwt-ink-soft);font-variant-numeric:tabular-nums;margin:.75rem 0 0;font-size:.8125rem}.app-ask-clear{flex-wrap:wrap;align-items:center;gap:1rem;margin:1.5rem 0 0;display:flex}.app-notes-group{margin:0 0 1.25rem}.app-notes-course{letter-spacing:-.015em;margin:0 0 .5rem;font-size:1.125rem;font-weight:650}.app-note{border-top:1px solid var(--app-line);max-width:none;padding:1rem 0}.app-notes-group .app-notes-course+.app-note{border-top:0}.app-notes-empty{border:1px dashed var(--app-line);border-radius:var(--app-radius);color:var(--lwt-ink-soft);text-align:center;padding:2.5rem 1.5rem}@media (prefers-reduced-motion:reduce){.lwt-check-btn,.app-bar a.app-bar-link,.app-skip,.app-lesson a,.app-chip,.app-ask-composer,.app-resume-btn,.app-next-card,.lwt-complete .lwt-complete-btn{transition:none}}.lwt-progress{pointer-events:none;height:3px;position:absolute;bottom:0;left:0;right:0}.lwt-progress span{background:var(--lwt-signal);transform-origin:0;height:100%;display:block;transform:scaleX(0)}@keyframes lwt-progress-grow{0%{transform:scaleX(0)}to{transform:scaleX(1)}}@supports (animation-timeline:scroll()){@media (prefers-reduced-motion:no-preference){.lwt-progress span{animation:linear both lwt-progress-grow;animation-timeline:scroll(root)}}}.lwt-lesson-hero{background:var(--app-canvas);border-bottom:1px solid var(--app-line);padding:6.5rem 0 2.5rem}.lwt-lesson-hero .app-strip{max-width:36rem;margin-top:1.25rem}@media (width>=64rem){.lwt-lesson-hero{padding:8.5rem 0 3.5rem}}.lwt-lesson-h1{letter-spacing:-.02em;max-width:24ch;margin:0 0 1rem;font-size:2.25rem;font-weight:600;line-height:1.1}@media (width>=64rem){.lwt-lesson-h1{font-size:3rem}}.lwt-lesson-body{padding:2.5rem 0 4rem}@media (width>=64rem){.lwt-lesson-body{padding:3.5rem 0 5rem}}.lwt-lesson-grid{grid-template-columns:minmax(0,1fr);gap:2rem;display:grid}@media (width>=64rem){.lwt-lesson-grid{grid-template-columns:15rem minmax(0,1fr);gap:3.5rem}}@media (width>=80rem){.lwt-has-ask .app-wrap{max-width:86rem}.lwt-has-ask .lwt-lesson-grid{grid-template-columns:15rem minmax(0,1fr) 22rem}}.lwt-toc-mobile{border:1px solid var(--app-line);border-radius:var(--app-radius-sm);background:var(--app-surface);padding:.25rem 1rem}.lwt-toc-mobile summary{cursor:pointer;align-items:center;min-height:44px;font-weight:600;list-style:none;display:flex}.lwt-toc-mobile summary::-webkit-details-marker{display:none}.lwt-toc-mobile ul{padding-bottom:.75rem}@media (width>=64rem){.lwt-toc-mobile{display:none}}.lwt-toc-desktop{display:none}@media (width>=64rem){.lwt-toc-desktop{top:calc(var(--app-bar-h,4rem) + 1.5rem);max-height:calc(100vh - var(--app-bar-h,4rem) - 3rem);overscroll-behavior:contain;display:block;position:sticky;overflow-y:auto}}.lwt-toc-title{color:var(--lwt-ink-soft);margin:0 0 .5rem;font-size:.875rem;font-weight:600}.lwt-toc ul{margin:0;padding:0;list-style:none}.lwt-toc li{margin:0}.lwt-toc a{min-height:44px;color:var(--lwt-ink-soft);align-items:center;padding:.25rem 0;font-size:.875rem;line-height:1.4;text-decoration:none;display:flex;position:relative}.lwt-toc a:hover{color:var(--lwt-signal)}.lwt-toc .lwt-toc-group{color:var(--lwt-ink);margin:1.25rem 0 .25rem;font-size:.8125rem;font-weight:600}.lwt-toc .lwt-toc-sources{border-top:1px solid var(--lwt-rule);margin-top:1.25rem;padding-top:1rem}.lwt-toc a.is-current{color:var(--lwt-signal);font-weight:600}.lwt-toc a.is-current:before{content:"";background:var(--lwt-signal);border-radius:1px;width:2px;position:absolute;top:.5rem;bottom:.5rem;left:-.75rem}.lwt-toc .lwt-toc-sub a{padding-left:1rem;font-size:.8125rem;line-height:1.35}.lwt-toc .lwt-toc-sub a.is-current:before{left:0}.lwt-article{min-width:0;max-width:68ch;font-family:var(--lwt-serif);color:var(--lwt-ink);overflow-wrap:break-word;font-size:1.1875rem;line-height:1.7}.lwt-article>p{margin:0 0 1.5rem}.lwt-article h2{scroll-margin-top:calc(var(--app-bar-h,4rem) + 1rem);font-family:var(--lwt-sans);letter-spacing:-.02em;margin:3rem 0 1rem;font-size:2rem;font-weight:600;line-height:1.15}.lwt-article h3{scroll-margin-top:calc(var(--app-bar-h,4rem) + 1rem);font-family:var(--lwt-sans);letter-spacing:-.01em;margin:2.25rem 0 .75rem;font-size:1.375rem;font-weight:600;line-height:1.25}.lwt-article h2.lwt-do-start{border-top:1px solid var(--lwt-rule);margin-top:4.5rem;padding-top:2.5rem}.lwt-article h2.lwt-warn{border-left:3px solid var(--lwt-retest);padding-left:.875rem}.lwt-article ul,.lwt-article ol{margin:0 0 1.5rem;padding-left:1.25rem}.lwt-article li{margin-bottom:.625rem}.lwt-article a{color:var(--lwt-signal);text-underline-offset:2px;text-decoration:underline}.lwt-article a:hover{color:var(--lwt-signal-dark)}.lwt-article strong{font-weight:600}.lwt-article blockquote{border-left:3px solid var(--lwt-rule);color:var(--lwt-ink-soft);margin:0 0 1.5rem;padding-left:1rem}.lwt-article hr{border:0;border-top:1px solid var(--lwt-rule);margin:2.5rem 0}.lwt-article code{font-family:var(--lwt-mono);font-size:.875rem}.lwt-article .lwt-call{border:1px solid var(--app-line);border-left:3px solid var(--lwt-signal);border-radius:var(--app-radius-sm);background:var(--lwt-mist);font-family:var(--lwt-sans);margin:1.75rem 0;padding:1rem 1.25rem;font-size:1rem;line-height:1.6}.lwt-article .lwt-note{margin:1.75rem 0}.lwt-article .lwt-prompt{border:1px solid var(--app-line);border-radius:var(--app-radius-sm);grid-template-columns:minmax(0,1fr) auto;align-items:center;column-gap:1rem;margin:2rem 0;padding:1rem 1.25rem 1.25rem;display:grid}.lwt-article .lwt-prompt figcaption{font-family:var(--lwt-sans);color:var(--lwt-ink-soft);grid-column:1;font-size:.875rem}.lwt-article .lwt-prompt .lwt-copy{border-radius:999px;grid-column:2}.lwt-article .lwt-prompt pre{background:var(--lwt-mist);white-space:pre-wrap;overflow-wrap:anywhere;border-radius:8px;grid-column:1/-1;margin:.875rem 0 0;padding:1rem}.lwt-article .lwt-prompt code{line-height:1.6}.lwt-article .lwt-cardblock{border:1px solid var(--app-line);border-radius:var(--app-radius-sm);background:var(--lwt-mist);font-family:var(--lwt-sans);margin:2.5rem 0;padding:1.25rem}.lwt-article .lwt-cardblock-title{letter-spacing:-.01em;margin:0 0 .25rem;font-size:1.1875rem;font-weight:600}.lwt-article .lwt-cardblock-body{color:var(--lwt-ink-soft);margin:0 0 .75rem;font-size:.875rem}.lwt-article .lwt-cardblock-link{background:var(--lwt-signal);color:#fff;min-height:44px;transition:background-color var(--app-fast) var(--app-ease), border-color var(--app-fast) var(--app-ease), color var(--app-fast) var(--app-ease);border:1px solid #0000;border-radius:999px;justify-content:center;align-items:center;padding:.75rem 1.5rem;font-size:1rem;font-weight:600;line-height:1.2;text-decoration:none;display:inline-flex}.lwt-article .lwt-cardblock-link:hover{background:var(--lwt-signal-dark);color:#fff}.lwt-article .lwt-cardblock-link+.lwt-cardblock-link{border-color:var(--lwt-rule);color:var(--lwt-signal);background:0 0;margin-left:.25rem}.lwt-article .lwt-cardblock-link+.lwt-cardblock-link:hover{border-color:var(--lwt-signal);color:var(--lwt-signal-dark);background:0 0}.lwt-notes-box{border-color:var(--app-field-line)}.lwt-notes-box::placeholder{color:var(--app-placeholder)}.app-next.is-done-next .app-next-card--next{border-color:var(--lwt-signal);background:var(--lwt-signal);color:#fff;transition:background-color var(--app-med) var(--app-ease), border-color var(--app-med) var(--app-ease), color var(--app-med) var(--app-ease)}.app-next.is-done-next .app-next-card--next:hover{border-color:var(--lwt-signal-dark);background:var(--lwt-signal-dark);color:#fff}.app-next.is-done-next .app-next-card--next .app-next-label{color:#ffffffd1}.lwt-endpanel{border:1px solid var(--app-line);border-radius:var(--app-radius-sm);background:var(--lwt-mist);margin-top:3.5rem;padding:1.75rem}@media (width>=48rem){.lwt-endpanel{padding:2.5rem}}.lwt-endpanel-title{letter-spacing:-.02em;margin:0 0 1.5rem;font-size:1.5rem;font-weight:600;line-height:1.25}.lwt-endpanel-price{color:var(--lwt-ink-soft);margin:0 0 1.5rem;font-size:1rem}.lwt-endpanel-amount{letter-spacing:-.02em;color:var(--lwt-ink);font-size:2rem;font-weight:600}.lwt-endpanel-author{color:var(--lwt-ink-soft);margin:1.5rem 0 0;font-size:.9375rem}.lwt-endpanel-author a{color:var(--lwt-signal);text-underline-offset:2px;text-decoration:underline}.lwt-endpanel-author a:hover{color:var(--lwt-signal-dark)}@media (prefers-reduced-motion:reduce){.lwt-article .lwt-cardblock-link,.app-next.is-done-next .app-next-card--next{transition:none}}.lwt-lesson-hero{padding:2.5rem 0 2rem}@media (width>=64rem){.lwt-lesson-hero{padding:3.5rem 0 2.5rem}}.lwt-ask-col{display:none}@media (width>=80rem){.lwt-ask-col{display:block}}.lwt-ask-pill{z-index:30;box-shadow:var(--app-lift);position:fixed;bottom:1rem;right:1rem}@media (width>=80rem){.lwt-ask-pill{display:none}}.lwt-ask-sheet{background:var(--app-surface);width:100%;max-width:100%;height:100dvh;max-height:100dvh;color:var(--lwt-ink);overscroll-behavior:contain;border:0;margin:0;padding:0;position:fixed;inset:0}html.ask-sheet-open,html.ask-sheet-open body{overscroll-behavior:none;overflow:hidden}.lwt-ask-sheet[open]{flex-direction:column;display:flex}.lwt-ask-sheet::backdrop{background:#16193a52}@media (width>=48rem){.lwt-ask-sheet{width:26rem;box-shadow:var(--app-lift);left:auto}}.lwt-ask-sheet .ask-chat-head{padding-right:6rem}.lwt-ask-sheet-close{z-index:1;margin:0;position:absolute;top:.5rem;right:.5rem}.lwt-ask-close{border:1px solid var(--app-line);background:var(--app-surface);min-height:44px;color:var(--lwt-ink);font-family:var(--lwt-sans);cursor:pointer;transition:border-color var(--app-fast) var(--app-ease), color var(--app-fast) var(--app-ease);border-radius:999px;justify-content:center;align-items:center;padding:0 .875rem;font-size:.9375rem;font-weight:600;display:inline-flex}.lwt-ask-close:hover{border-color:var(--lwt-signal);color:var(--lwt-signal)}@media (prefers-reduced-motion:reduce){.lwt-ask-close{transition:none}}.app-review-group{border:1px solid var(--app-line);border-radius:var(--app-radius);background:var(--app-surface);box-shadow:var(--app-lift);margin:0 0 1.25rem;padding:1.5rem}@media (width>=48rem){.app-review-group{padding:1.75rem 2rem}}.app-review-group .lwt-check:first-child{margin-top:0}.app-review-lesson{letter-spacing:-.01em;margin:0 0 1rem;font-size:1.25rem;font-weight:600}.app-review-lesson a{color:var(--lwt-ink);text-decoration:none}.app-review-lesson a:hover{color:var(--lwt-signal)}.app-join-panel{border:1px solid var(--app-line);border-radius:var(--app-radius);background:var(--app-surface);max-width:40rem;box-shadow:var(--app-lift);margin:0 auto;padding:1.75rem}@media (width>=48rem){.app-join-panel{padding:2.5rem}}.app-join-line{max-width:60ch;color:var(--lwt-ink-soft);margin:0 0 .75rem;line-height:1.6}.app-join-panel .lwt-included{max-width:60ch;margin:1.5rem 0 0}.app-price{color:var(--lwt-ink-soft);margin:1.75rem 0 1.25rem}.app-price strong{letter-spacing:-.02em;color:var(--lwt-ink);margin-top:.25rem;font-size:clamp(1.75rem,1.4rem + 1.2vw,2.25rem);font-weight:650;line-height:1.15;display:block}.app-join-actions{flex-wrap:wrap;align-items:center;gap:1.25rem;display:flex}.app-join-actions form{margin:0}.app-join-terms{color:var(--lwt-signal)}.app-join-note{border-left:3px solid var(--lwt-signal);border-radius:0 var(--app-radius-sm) var(--app-radius-sm) 0;background:var(--lwt-mist);color:var(--lwt-ink);margin:0 0 1.25rem;padding:.75rem 1rem}.app-fine{max-width:60ch;color:var(--lwt-ink-soft);margin:1.5rem 0 0;font-size:.9375rem}.app-welcome-panel{border:1px solid var(--app-line);border-radius:var(--app-radius);background:var(--app-surface);max-width:40rem;box-shadow:var(--app-lift);padding:1.75rem}@media (width>=48rem){.app-welcome-panel{padding:2.5rem}}.app-welcome-tick{background:var(--lwt-mist);width:2.5rem;height:2.5rem;color:var(--lwt-signal);border-radius:999px;place-items:center;margin:0 0 1.25rem;font-size:1.25rem;font-weight:700;line-height:1;display:grid}.app-name-form{max-width:30rem;margin:0 0 2.5rem}.app-name-label{margin:0 0 .375rem;font-weight:600;display:block}.app-name-input{border:1px solid var(--app-field-line);border-radius:var(--app-radius-sm);width:100%;font-family:var(--lwt-sans);color:var(--lwt-ink);padding:.625rem .75rem;font-size:1rem;display:block}.app-name-input::placeholder{color:var(--app-placeholder);opacity:1}.app-name-input:focus,.app-name-input:focus-visible{border-color:var(--lwt-signal);outline:none;box-shadow:0 0 0 4px #2f45d81f}.app-name-help{color:var(--lwt-ink-soft);margin:.5rem 0 0;font-size:.9375rem}.app-name-save{margin:1rem 0 0}.app-name-status{color:var(--lwt-go);margin:0 0 1rem;font-size:.9375rem}.app-welcome-actions{flex-wrap:wrap;align-items:center;gap:1.25rem;display:flex}.ask-chat{border:1px solid var(--app-line);border-radius:var(--app-radius);background:var(--app-surface);min-height:0;box-shadow:var(--app-lift);font-family:var(--lwt-sans);flex-direction:column;display:flex}.ask-chat-head{border-bottom:1px solid var(--app-line);align-items:center;gap:.5rem;padding:.875rem 1rem .75rem;display:flex}.ask-chat-heading{letter-spacing:-.01em;flex:auto;margin:0;font-size:1rem;font-weight:650;line-height:1.3}.ask-chat--page .ask-chat-heading{letter-spacing:-.03em;font-size:clamp(1.75rem,1.4rem + 1.2vw,2.375rem)}.ask-chat-reset{min-height:44px;font-family:var(--lwt-sans);color:var(--lwt-ink-soft);cursor:pointer;transition:background-color var(--app-fast) var(--app-ease), color var(--app-fast) var(--app-ease);background:0 0;border:0;border-radius:999px;align-items:center;padding:0 .75rem;font-size:.875rem;font-weight:600;display:inline-flex}.ask-chat-reset:hover{background:var(--app-canvas);color:var(--lwt-ink)}.ask-chat-reset[hidden]{display:none}.ask-chat-thread{overscroll-behavior:contain;flex-direction:column;gap:.75rem;margin:0;padding:1rem;list-style:none;display:flex;overflow-y:auto}.ask-chat-thread:empty{display:none}.ask-msg{display:flex}.ask-msg--user{justify-content:flex-end}.ask-msg-q{background:var(--lwt-mist);max-width:85%;color:var(--lwt-ink);overflow-wrap:anywhere;border-radius:16px 16px 4px;margin:0;padding:.5rem .875rem;font-size:.9375rem;line-height:1.5}.ask-msg--answer{display:block}.ask-msg-a{font-family:var(--lwt-serif);overflow-wrap:anywhere;margin:0;font-size:1.0625rem;line-height:1.65}.ask-msg-a a{color:var(--lwt-signal);font-family:var(--lwt-sans);margin:0 -.15em;padding:.25em .15em;font-size:.875em;font-weight:600;text-decoration:none}.ask-msg-a a:hover{text-decoration:underline}.ask-msg-sources{border-top:1px solid var(--app-line);margin:.75rem 0 0;padding:.75rem 0 0 1.25rem;font-size:.875rem}.ask-msg-sources li{padding:.125rem 0}.ask-msg-sources a{min-height:24px;color:var(--lwt-signal);font-weight:500;text-decoration:none;display:inline-block}.ask-msg-sources a:hover{text-decoration:underline}.ask-msg-caption{color:var(--lwt-ink-soft);margin:.5rem 0 0;font-size:.8125rem}.ask-msg-hint{margin:.375rem 0 0;font-size:.875rem}.ask-msg-hint a{min-height:24px;color:var(--lwt-signal);align-items:center;font-weight:600;text-decoration:none;display:inline-flex}.ask-msg-hint a:hover{text-decoration:underline}.ask-chat-suggestions{flex-direction:column;align-items:flex-start;gap:.5rem;padding:0 1rem .5rem;display:flex}.ask-chat-suggestions[hidden]{display:none}.ask-chat-suggestion{border:1px solid var(--app-line);background:var(--app-surface);min-height:44px;font-family:var(--lwt-sans);color:var(--lwt-ink);text-align:left;cursor:pointer;transition:border-color var(--app-fast) var(--app-ease), color var(--app-fast) var(--app-ease);border-radius:999px;align-items:center;padding:.5rem .875rem;font-size:.875rem;display:inline-flex}.ask-chat-suggestion:hover{border-color:var(--lwt-signal);color:var(--lwt-signal)}.ask-chat-form{border-top:1px solid var(--app-line);flex-direction:column;gap:.5rem;margin-top:auto;padding:.75rem 1rem 0;display:flex}.ask-chat-box{border:1px solid var(--app-field-line);border-radius:var(--app-radius-sm);background:var(--app-surface);width:100%;min-height:4.5rem;font-family:var(--lwt-sans);color:var(--lwt-ink);resize:vertical;padding:.625rem .75rem;font-size:1rem;line-height:1.5;display:block}.ask-chat-box::placeholder{color:var(--app-placeholder)}.ask-chat-form .lwt-btn{border-radius:999px;align-self:flex-end}.ask-chat-form .lwt-btn[hidden]{display:none}.ask-chat-status{min-height:1.25rem;color:var(--lwt-ink-soft);margin:0;padding:.5rem 1rem 0;font-size:.875rem}.ask-chat-privacy{color:var(--lwt-ink-soft);margin:0;padding:.25rem 1rem .875rem;font-size:.75rem;line-height:1.45}.ask-chat-noscript{color:var(--lwt-ink-soft);margin:.5rem 1rem 1rem;font-size:.875rem}.ask-chat--panel{top:calc(var(--app-bar-h,4rem) + 1rem);height:calc(100vh - var(--app-bar-h,4rem) - 2rem);max-height:calc(100vh - var(--app-bar-h,4rem) - 2rem);position:sticky}.ask-chat--panel .ask-chat-thread{flex:auto}.ask-chat--page{max-width:46rem}.ask-chat--page .ask-chat-thread{flex:0 auto;min-height:0;max-height:min(60vh,36rem)}[data-ask-dialog] .ask-chat{height:100%;max-height:none;box-shadow:none;border:0;border-radius:0;position:static}[data-ask-dialog] .ask-chat-thread{flex:auto}@media (prefers-reduced-motion:reduce){.ask-chat-reset,.ask-chat-suggestion{transition:none}}
