.reader{--reader-accent:#42654d;--reader-sage:#e3e9d9;--reader-line:#cdd1c5;min-height:100dvh;background:var(--milk);color:var(--ink);padding:24px clamp(20px,4vw,64px) 0;font-family:var(--sans);font-size:20px;line-height:1.6;overflow:clip}.reader a,.reader button,.reader input{touch-action:manipulation}.reader a,.reader button{transition:background .2s,color .2s}.reader button{cursor:pointer}.reader button:disabled{cursor:default;opacity:.4}.reader :focus-visible{outline:2px solid var(--reader-accent);outline-offset:5px}.reader svg{flex:none;width:23px;height:23px}.reader-footer,.reader-header,.reader-main{max-width:1480px;margin-inline:auto}.reader-header{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;min-height:100px;padding:8px 28px;background:var(--paper);border:1px solid var(--reader-line);border-radius:5px}.reader-header .brand-wordmark{width:215px}.reader-back{display:flex;align-items:center;gap:12px;min-height:48px}.reader-back:hover{color:var(--reader-accent)}.reader-intro{position:relative;padding:48px 0 42px;isolation:isolate}.reader-intro>.flow-motif{position:absolute;z-index:-1;right:-15vw;top:-170px;width:75vw;height:640px;pointer-events:none;opacity:.22}.reader-intro .flow-motif__ribbon{stroke:#d2e0c8;stroke-width:85}.reader-intro .flow-motif__lines{stroke:#42654d;stroke-width:.7}.reader-eyebrow{margin:0;color:var(--reader-accent);font-size:18px;font-weight:500;letter-spacing:.09em;text-transform:uppercase}.reader-eyebrow span{margin:0 14px;color:#8d9788}.reader h1{margin:15px 0 0;max-width:1000px;font:400 clamp(46px,4.3vw,72px)/1.02 var(--serif);letter-spacing:-.025em}.reader h1 em{font-style:italic;color:var(--reader-accent)}.reader-workspace{display:grid;grid-template-columns:340px minmax(0,1fr);align-items:start;gap:clamp(30px,4.5vw,72px);padding-bottom:72px}.reader-sidebar{padding-top:8px}.reader-contents-title{display:flex;justify-content:space-between;align-items:center}.reader-contents-title h2{margin:0;font-size:23px;font-weight:500}.reader-contents-title>span{font-size:17px;color:#586854;font-variant-numeric:tabular-nums}.reader-progress{height:3px;background:var(--reader-line);margin:16px 0 18px}.reader-progress>span{display:block;height:100%;background:var(--reader-accent)}.reader-contents ol{list-style:none;padding:0;margin:0}.reader-contents li+li{border-top:1px solid var(--reader-line)}.reader-contents li button{width:100%;display:grid;grid-template-columns:28px 1fr 16px;gap:14px;align-items:center;border:0;background:transparent;text-align:left;font-size:20px;line-height:1.4;padding:17px 12px;min-height:64px;border-radius:3px}.reader-contents li button:hover{background:#e9ebdf}.reader-contents li button[aria-current]{background:var(--reader-sage);font-weight:500}.reader-contents li button>svg{width:14px}.reader-lesson-number{font-size:15px;color:#52624e;font-variant-numeric:tabular-nums}.reader-lesson-number svg{width:19px}.reader-summary{display:flex;align-items:center;gap:16px;border-top:1px solid var(--reader-line);padding:22px 12px;margin-top:18px}.reader-summary small{display:block;font-size:15px;color:#62695c}.reader-local-note{margin:4px 12px 0;font-size:15px;line-height:1.6;color:#62695c}.reader-menu-toggle{display:none}.reader-lesson{min-width:0;scroll-margin-top:24px}.reader-lesson-top{display:flex;align-items:center;justify-content:space-between;gap:16px}.reader-lesson-top>span{font-variant-numeric:tabular-nums;color:#586854;font-size:18px}.reader-lesson h2{font:400 clamp(36px,3.1vw,52px)/1.08 var(--serif);letter-spacing:-.02em;margin:12px 0 26px;scroll-margin-top:24px}.reader-video-frame{background:#172c25;aspect-ratio:16/9;border-radius:5px 44px 5px 5px;overflow:hidden;position:relative}.reader-video-frame video{display:block;width:100%;height:100%;object-fit:contain;background:#172c25}.reader-video-placeholder{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--reader-sage);font-size:18px}.reader-video-placeholder svg{width:40px;height:40px}.reader-status{font-size:18px;color:#586854}.reader-description{font-size:24px;line-height:1.7;margin:28px 0 32px;max-width:70ch}.reader-material{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:25px 28px;background:var(--reader-sage);border-radius:3px 34px 3px 3px}.reader-material .reader-eyebrow{font-size:14px}.reader-material h3{font:400 35px/1.2 var(--serif);margin:7px 0 0}.reader-material a,.reader-primary{display:inline-flex;align-items:center;justify-content:center;gap:12px;min-height:52px;padding:12px 20px;border:1px solid var(--reader-accent);background:var(--reader-accent);color:var(--paper);font-size:18px;border-radius:3px;white-space:nowrap}.reader-material a:hover,.reader-primary:hover{background:var(--ink)}.reader-bottom{justify-content:space-between;gap:14px;padding:26px 0;border-bottom:1px solid var(--reader-line)}.reader-bottom,.reader-done{display:flex;align-items:center}.reader-done{gap:10px;min-height:48px;border:0;background:transparent;font-size:18px;padding:6px 0}.reader-done>svg{border:1px solid #a6af9e;padding:4px;width:25px;height:25px;color:transparent}.reader-done.is-done>svg{background:var(--reader-accent);color:var(--milk);border-color:var(--reader-accent)}.reader-nextprev{display:flex;gap:10px}.reader-nextprev button{display:grid;place-items:center;width:48px;height:48px;border:1px solid var(--reader-line);background:transparent;border-radius:50%}.reader-nextprev button:hover:enabled{background:var(--reader-sage)}.reader-final-file{min-height:56px;margin-top:20px}.reader-final-file,.reader-resume{display:flex;gap:16px;align-items:center}.reader-resume{justify-content:space-between;font-size:17px;margin-top:12px}.reader-resume p{margin:0}.reader-resume button{background:transparent;border:0;border-bottom:1px solid var(--reader-line);font-size:17px;min-height:44px;padding:5px}.reader-error{background:#eee1d9;border:1px solid #ad9280;padding:20px 24px;font-size:18px;margin-top:16px}.reader-error p{margin:0 0 12px}.reader-error button{display:flex;align-items:center;gap:10px;border:0;background:var(--ink);color:var(--milk);min-height:48px;padding:10px 16px}.reader-footer{display:flex;gap:20px;justify-content:space-between;border-top:1px solid var(--reader-line);padding:24px 0 32px;font-size:17px;color:#586854}.reader-footer a{display:flex;gap:12px;align-items:center;min-height:44px}.reader-gate{max-width:560px;margin:20px auto 100px;padding:40px;border:1px solid var(--reader-line);background:var(--paper);border-radius:4px 48px 4px 4px}.reader-gate h2{font:400 46px/1.1 var(--serif);margin:18px 0}.reader-gate p{font-size:20px}.reader-gate label{display:block;font-size:18px;margin-bottom:8px}.reader-gate input{display:block;width:100%;min-height:52px;background:var(--milk);border:1px solid #a4ae9c;font:inherit;padding:12px;margin-bottom:20px;border-radius:3px}.reader-gate [role=alert]{color:#843b48;font-size:18px}@media(min-width:1001px){.reader-sidebar{position:sticky;top:28px}}@media(max-width:1100px){.reader-workspace{grid-template-columns:285px minmax(0,1fr);gap:32px}.reader-contents li button{font-size:18px;gap:10px;padding:15px 8px}.reader-material{align-items:flex-start;flex-direction:column}.reader-description{font-size:22px}}@media(max-width:800px){.reader{padding-top:14px}.reader-header{min-height:80px;padding:8px 16px}.reader-header .brand-wordmark{width:174px}.reader-back{font-size:18px;gap:8px}.reader-back svg{width:19px}.reader-intro{padding:32px 0}.reader-intro>.flow-motif{width:150vw;right:-50vw;top:-120px}.reader h1{font-size:53px;max-width:610px}.reader-workspace{display:block;padding-bottom:44px}.reader-sidebar{padding:0;margin-bottom:26px;border-top:1px solid var(--reader-line);border-bottom:1px solid var(--reader-line)}.reader-menu-toggle{display:flex;width:100%;align-items:center;justify-content:space-between;gap:12px;padding:16px 0;min-height:60px;border:0;background:transparent;text-align:left;font-size:20px}.reader-menu-toggle span{font-size:18px;color:var(--reader-accent);text-decoration:underline;text-underline-offset:5px}.reader-contents{display:none;padding:8px 0 22px}.reader-sidebar.is-open .reader-contents{display:block}.reader-contents li button{font-size:20px;min-height:60px}.reader-lesson h2{font-size:44px;margin:12px 0 20px}.reader-video-frame{border-top-right-radius:28px}.reader-description{font-size:22px;margin:22px 0 26px}.reader-material{flex-direction:row;align-items:center;padding:22px}.reader-material h3{font-size:31px}.reader-resume{flex-wrap:wrap;gap:4px 14px}.reader-footer{font-size:15px}}@media(max-width:520px){.reader h1{font-size:51px}.reader-eyebrow{font-size:14px}.reader-header .brand-wordmark{width:158px}.reader-header{padding-inline:10px}.reader-back{font-size:15px}.reader-material{flex-direction:column;align-items:stretch;gap:18px}.reader-material a{align-self:flex-start}.reader-description{font-size:20px;line-height:1.7}.reader-lesson h2{font-size:40px}.reader-done{font-size:15px;gap:8px}.reader-nextprev{gap:8px}.reader-nextprev button{width:44px;height:44px}.reader-gate{padding:28px 22px}.reader-footer{align-items:flex-start;flex-direction:column;gap:8px}.reader-intro{padding-top:28px}.reader h1{font-size:47px}.reader-contents li button{font-size:19px}.reader-bottom{gap:8px}}@media(prefers-reduced-motion:reduce){.reader *{scroll-behavior:auto!important;transition:none!important}}.reader--love{--reader-accent:#843b48;--reader-sage:#eddfdd;--reader-line:#d8c9c5}.reader--money{--reader-accent:#5d6038;--reader-sage:#e7e6d3;--reader-line:#cfcebd}.reader-intro .flow-motif__ribbon{stroke:var(--reader-sage)}.reader-intro .flow-motif__lines{stroke:var(--reader-accent)}.reader-material-note{font-size:15px;margin:8px 0 0}.reader-contents li button:hover{background:var(--reader-sage)}.reader-benefits{display:grid;grid-template-columns:28px minmax(0,1fr) auto;align-items:center;gap:20px;padding:26px 0;margin-bottom:36px;border-block:1px solid var(--reader-line)}.reader-benefits>svg{width:28px;height:28px;color:var(--reader-accent);align-self:start;margin-top:5px}.reader-benefits h2{font:400 35px/1.15 var(--serif);margin:0 0 8px}.reader-benefits p{max-width:64ch;font-size:19px;line-height:1.6;margin:0}.reader-benefits a{display:flex;align-items:center;gap:12px;min-height:48px;padding:10px 0;color:var(--reader-accent);font-size:18px;text-decoration:underline;text-underline-offset:6px}.reader-benefits a svg{width:20px;height:20px;flex-shrink:0}.reader-benefits a:focus-visible{outline:2px solid var(--reader-accent);outline-offset:6px}@media(max-width:800px){.reader-benefits{grid-template-columns:24px minmax(0,1fr);gap:12px 16px;padding:22px 0;margin-bottom:26px}.reader-benefits h2{font-size:32px}.reader-benefits>svg{width:24px;height:24px}.reader-benefits a{grid-column:2;justify-self:start}.reader-benefits p{font-size:18px}}.reader-library-list{padding:8px 0 80px}.reader-library-course{display:grid;grid-template-columns:56px minmax(0,1fr) auto;align-items:center;gap:28px;padding:40px 28px;border-top:1px solid var(--reader-line);position:relative}.reader-library-course:last-child{border-bottom:1px solid var(--reader-line)}.reader-library-course:hover{background:var(--reader-sage)}.reader-library-number{font:400 35px/1 var(--serif);color:var(--reader-accent);align-self:start}.reader-library-course h2{font:400 clamp(36px,3.5vw,56px)/1.08 var(--serif);letter-spacing:-.02em;margin:14px 0 0}.reader-library-course h2 em{color:var(--reader-accent);font-weight:400}.reader-library-action{display:flex;align-items:center;gap:20px;white-space:nowrap;font-size:18px}.reader-library-course .reader-eyebrow{font-size:14px;letter-spacing:.04em}@media(min-width:1001px){.reader-sidebar{max-height:calc(100dvh - 56px);overflow-y:auto;scrollbar-width:thin;padding-right:10px;overscroll-behavior:contain}}@media(max-width:800px){.reader-library-course{grid-template-columns:28px minmax(0,1fr);padding:28px 4px;gap:16px}.reader-library-action{grid-column:2;font-size:18px}.reader-library-number{font-size:26px}.reader-library-course h2{font-size:42px}.reader-library-course .reader-eyebrow{font-size:13px;line-height:1.6}.reader-library-list{padding-bottom:48px}}.reader-code-entry{margin-top:24px}.reader-code-entry summary{cursor:pointer;min-height:48px;padding:12px 0}.reader-code-entry form{margin-top:12px}.reader.has-site-header{padding-top:152px}.reader.has-site-header .reader-sidebar{top:138px;max-height:calc(100dvh - 158px)}@media(max-width:800px){.reader.has-site-header{padding-top:124px}.reader.has-site-header .reader-sidebar{max-height:none}}