:root{color-scheme:light;--paper:#f4f0e7;--paper-deep:#ebe5d9;--ink:#17343a;--muted:#526569;--teal:#1f625d;--rust:#a64f37;--line:#c9c8bd;--serif:"Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;--sans:"Avenir Next", Avenir, "Segoe UI", sans-serif;--page-width:74rem}*,:before,:after{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:4.5rem}body{background:var(--paper);color:var(--ink);font-family:var(--sans);text-rendering:optimizelegibility;margin:0;line-height:1.6}a{color:inherit;text-underline-offset:.22em;text-decoration-thickness:1px}a:hover{color:var(--rust)}a:focus-visible,summary:focus-visible{outline:3px solid var(--rust);outline-offset:4px}img{max-width:100%;height:auto}svg{fill:none;stroke:currentColor;stroke-width:1.5px;stroke-linecap:round;stroke-linejoin:round;flex:none;width:1.1rem;height:1.1rem}.visually-hidden{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.skip-link{z-index:30;background:var(--ink);color:#fff;padding:.7rem 1rem;position:fixed;top:.7rem;left:.7rem;transform:translateY(-170%)}.skip-link:focus{transform:none}.site-header{border-bottom:1px solid var(--line)}.site-header-inner{width:min(calc(100% - 3rem), var(--page-width));justify-content:space-between;align-items:center;gap:2rem;margin:auto;padding-block:.85rem;display:flex}.wordmark{font:500 1.2rem/1 var(--serif);letter-spacing:-.025em;align-items:center;gap:.8rem;text-decoration:none;display:inline-flex}.wordmark img{object-fit:contain;mix-blend-mode:multiply;width:3rem;height:2.45rem}.wordmark small{color:var(--muted);font:600 .68rem/1 var(--sans);letter-spacing:.09em;margin-top:.34rem;display:block}.top-navigation{gap:clamp(1rem,2vw,2.2rem);font-size:.82rem;font-weight:600;display:flex}.top-navigation a{text-decoration:none}.mobile-index{display:none}.cover{border-bottom:1px solid var(--line)}.cover-inner{width:min(calc(100% - 3rem), var(--page-width));grid-template-columns:minmax(0,1.55fr) minmax(17rem,.7fr);align-items:center;gap:clamp(2rem,5vw,5.2rem);margin:auto;padding-block:clamp(3.1rem,5.3vw,5.3rem);display:grid}.cover-copy{min-width:0}.cover h1{max-width:12ch;font:500 clamp(3.5rem, 6.2vw, 6.7rem)/.96 var(--serif);letter-spacing:-.065em;text-wrap:balance;margin:0 0 1.5rem}.cover h1 em{color:var(--teal);font-weight:400;display:block}.cover-introduction{text-wrap:pretty;max-width:61ch;margin:0;font-size:clamp(1.08rem,1.35vw,1.28rem);line-height:1.64}.cover-actions{flex-wrap:wrap;align-items:flex-start;gap:1.4rem 2rem;margin-top:2rem;display:flex}.read-link{min-height:2.8rem;color:var(--rust);font:500 1.04rem var(--serif);white-space:nowrap;align-items:center;gap:.7rem;display:inline-flex}.download-actions{flex-wrap:wrap;gap:.6rem;display:flex}.download-button{border:1px solid var(--teal);min-height:2.85rem;color:var(--teal);justify-content:space-between;align-items:center;gap:1.1rem;padding:.64rem .9rem;font-size:.78rem;font-weight:650;line-height:1.2;text-decoration:none;transition:background-color .15s,color .15s;display:inline-flex}.download-button:hover{background:var(--teal);color:#fff}.download-button svg{width:1rem;height:1rem}.cover-mark{border:1px solid var(--line);width:100%;max-width:23rem;box-shadow:1.1rem 1.1rem 0 var(--paper-deep);background:#fff;justify-self:end;place-items:center;padding:clamp(.8rem,2vw,1.8rem);display:grid;position:relative}.cover-mark:before,.cover-mark:after{content:"";pointer-events:none;width:2.2rem;height:2.2rem;position:absolute}.cover-mark:before{border-top:2px solid var(--rust);border-left:2px solid var(--rust);top:-.35rem;left:-.35rem}.cover-mark:after{border-bottom:2px solid var(--rust);border-right:2px solid var(--rust);bottom:-.35rem;right:-.35rem}.cover-mark img{mix-blend-mode:multiply;width:100%;display:block}.contents{background:var(--paper-deep);border-bottom:1px solid var(--line)}.contents-inner{width:min(calc(100% - 3rem), var(--page-width));grid-template-columns:16rem minmax(0,1fr);gap:clamp(2rem,5vw,5rem);margin:auto;padding-block:clamp(3rem,5vw,4.5rem);display:grid}.contents-heading h2{font:500 clamp(2.2rem, 3.4vw, 3.8rem)/1.03 var(--serif);letter-spacing:-.05em;margin:0}.contents-heading p{color:var(--muted);letter-spacing:.07em;margin:1rem 0 0;font-size:.78rem}.contents-list,.mobile-index ol{margin:0;padding:0;list-style:none}.contents-list{grid-template-columns:1fr 1fr;gap:0 1.5rem;display:grid}.contents-list li{border-top:1px solid var(--line)}.contents-list a{font:500 clamp(1rem, 1.15vw, 1.125rem)/1.38 var(--serif);grid-template-columns:2.1rem 1fr 1rem;align-items:start;gap:.6rem;padding:.9rem .5rem;text-decoration:none;display:grid}.contents-list a:hover{background:#ffffff59}.contents-list a:focus-visible{z-index:1;position:relative}.contents-number{color:var(--rust);font:650 .86rem/1.35 var(--sans);letter-spacing:.06em;padding-top:.18rem}.contents-list svg{width:.85rem;height:.85rem;color:var(--teal);margin-top:.25rem}.chapters{overflow:clip}.chapter{padding-block:.4rem 1.7rem;scroll-margin-top:3rem}.chapter:nth-child(3n+2){background:#eee9df}.chapter-header,.chapter-content,.chapter-pagination{width:min(calc(100% - 3rem), var(--page-width));margin-inline:auto}.chapter-header{grid-template-columns:6.7rem minmax(0,1fr) auto;align-items:start;gap:clamp(1.2rem,3vw,3.3rem);padding-block:clamp(2.6rem,4vw,3.6rem) 1.3rem;display:grid}.chapter-number{color:var(--rust);letter-spacing:.1em;margin:.4rem 0 0;font-size:.83rem;font-weight:650}.chapter-number span{color:var(--muted)}.chapter-header h2{max-width:24ch;font:500 clamp(2.15rem, 3.8vw, 4.2rem)/1.05 var(--serif);letter-spacing:-.045em;text-wrap:pretty;margin:0}.chapter-range{color:var(--muted);white-space:nowrap;margin:.48rem 0 0;font-size:.86rem}.chapter-content{gap:1rem;padding-bottom:.7rem;display:grid}.slide-entry{background:#faf8f2;border:1px solid #d6d0c4;grid-template-columns:minmax(0,1fr) minmax(12rem,19rem);align-items:center;gap:clamp(1.1rem,2.6vw,2.3rem);padding:1rem;display:grid}.slide-entry.slide-compact{grid-template-columns:minmax(0,1fr);justify-self:start;width:fit-content;max-width:100%}.slide-compact .slide-thumbnail-frame{width:min(19rem,100%);margin-inline:0 auto}.slide-meta{color:var(--muted);margin:0 0 .65rem;font-size:.82rem;line-height:1.3}.slide-meta span{color:var(--line);padding-inline:.25rem}.slide-main{min-width:0}.slide-text{max-width:68ch}.text-block+.text-block{margin-top:.8rem}.slide-title{max-width:40ch;color:var(--teal);font:500 clamp(1.35rem, 2vw, 2rem)/1.2 var(--serif);letter-spacing:-.02em;text-wrap:pretty;margin:.05rem 0 .65rem}.title-line{display:block}.source-paragraph,.source-list{overflow-wrap:anywhere;text-wrap:pretty;max-width:68ch;margin:.45rem 0 .8rem;font-size:clamp(1.05rem,1.25vw,1.15rem);line-height:1.68}.source-paragraph a,.source-list a,.source-label a{color:var(--teal)}.source-label{max-width:68ch;color:var(--teal);overflow-wrap:anywhere;margin:.4rem 0 .7rem;font-size:1rem;font-weight:650;line-height:1.5}.source-list{padding-left:1.45rem}.source-list li{margin-block:.45rem;padding-left:.3rem}.source-list li::marker{color:var(--rust)}.source-quote{border-left:2px solid var(--rust);margin:.6rem 0 1rem;padding:.15rem 0 .15rem 1.3rem}.source-quote blockquote{font:500 clamp(1.35rem, 2.2vw, 2.1rem)/1.3 var(--serif);letter-spacing:-.02em;margin:0}.source-quote blockquote p{margin:0}.source-quote figcaption{color:var(--teal);letter-spacing:.06em;margin-top:.9rem;font-size:.8rem;font-weight:650}.slide-thumbnail-frame{width:100%;max-width:19rem;margin:0 0 0 auto}.slide-thumbnail{border:1px solid var(--line);background:#fff;line-height:0;display:block}.slide-thumbnail:hover{border-color:var(--teal)}.slide-thumbnail:focus-visible{outline:3px solid var(--rust);outline-offset:3px}.slide-thumbnail img{width:100%;height:auto;display:block}.slide-quotation .source-quote{max-width:53rem;margin-block:1rem}.slide-quotation .source-quote blockquote{font-size:clamp(1.8rem,3.2vw,3.1rem)}.chapter-pagination{justify-content:space-between;gap:1.5rem;padding-block:1.4rem 2rem;display:flex}.chapter-pagination a{gap:.2rem;max-width:45%;text-decoration:none;display:grid}.chapter-pagination a:last-child{text-align:right;margin-left:auto}.chapter-pagination span{color:var(--muted);font-size:.82rem;font-weight:650}.chapter-pagination strong{font:500 1.04rem/1.3 var(--serif)}.downloads{background:var(--ink);color:#f8f5ed}.downloads-inner{width:min(calc(100% - 3rem), var(--page-width));justify-content:space-between;align-items:center;gap:1.5rem;margin:auto;padding-block:3.1rem;display:flex}.downloads h2{font:500 clamp(2.4rem, 4vw, 4.2rem)/1 var(--serif);letter-spacing:-.05em;margin:0}.downloads .download-button{color:#f8f5ed;border-color:#b7d1c9}.downloads .download-button:hover{color:var(--ink);background:#f8f5ed}.site-footer{border-top:1px solid var(--line)}.site-footer>div{width:min(calc(100% - 3rem), var(--page-width));color:var(--muted);justify-content:space-between;gap:1rem;margin:auto;padding-block:1.2rem;font-size:.75rem;display:flex}@media (width<=980px){.cover-inner{grid-template-columns:minmax(0,1fr) minmax(14rem,.53fr);gap:2rem}.cover h1{font-size:clamp(3.3rem,7vw,5.6rem)}.cover-actions{gap:1rem}.contents-inner{grid-template-columns:1fr;gap:1.7rem}.contents-heading h2{max-width:18ch}.chapter-header{grid-template-columns:4.5rem 1fr;gap:1rem}.chapter-range{grid-column:2;margin-top:-.5rem}.slide-entry{grid-template-columns:minmax(0,1fr) minmax(11rem,16rem)}}@media (width<=680px){html{scroll-padding-top:3.7rem}.site-header-inner{gap:.5rem;width:calc(100% - 2rem);padding-block:.65rem}.wordmark{gap:.5rem;font-size:1rem}.wordmark img{width:2.2rem;height:1.8rem}.top-navigation{gap:.75rem;font-size:.7rem}.top-navigation a:nth-child(2){display:none}.mobile-index{z-index:10;background:var(--paper);border-bottom:1px solid var(--line);display:block;position:sticky;top:0}.mobile-index summary{cursor:pointer;justify-content:space-between;align-items:center;width:calc(100% - 2rem);min-height:2.8rem;margin:auto;font-size:.78rem;font-weight:650;list-style:none;display:flex}.mobile-index summary::-webkit-details-marker{display:none}.mobile-index summary span{color:var(--rust);font-size:1.2rem;line-height:1}.mobile-index[open] summary span{transform:rotate(45deg)}.mobile-index nav{max-height:min(65vh,30rem);padding:0 1rem .7rem;overflow:auto}.mobile-index li{border-top:1px solid var(--line)}.mobile-index li a{font:500 .93rem/1.3 var(--serif);grid-template-columns:2rem 1fr;gap:.5rem;padding:.45rem 0;text-decoration:none;display:grid}.mobile-index li span{color:var(--rust);font:650 .66rem/1.6 var(--sans)}.cover-inner{flex-direction:column-reverse;align-items:stretch;gap:1.7rem;width:calc(100% - 2rem);padding-block:2.2rem 2.8rem;display:flex}.cover-mark{max-width:12.5rem;box-shadow:.6rem .6rem 0 var(--paper-deep);align-self:flex-start;padding:.55rem}.cover h1{max-width:12ch;margin-bottom:1rem;font-size:clamp(3.1rem,11vw,4.8rem)}.cover-introduction{font-size:1.05rem;line-height:1.65}.cover-actions{margin-top:1.35rem}.cover-actions .download-actions{width:100%}.download-button{flex:12rem}.contents-inner,.chapter-header,.chapter-content,.chapter-pagination,.downloads-inner,.site-footer>div{width:calc(100% - 2rem)}.contents-inner{padding-block:2.6rem}.contents-list{grid-template-columns:1fr}.contents-list a{font-size:1.02rem}.chapter-header{padding-block:2.7rem 1.35rem;display:block}.chapter-number{margin:0 0 .8rem}.chapter-header h2{font-size:clamp(2.1rem,8vw,3.5rem)}.chapter-range{margin-top:.7rem}.slide-entry{grid-template-columns:minmax(0,1fr);gap:.9rem;padding:.85rem}.slide-meta{margin-bottom:.6rem}.slide-title{font-size:1.65rem}.source-paragraph,.source-list{font-size:1rem;line-height:1.68}.slide-thumbnail-frame{max-width:min(100%,26rem);margin-inline:0 auto}.chapter-pagination{padding-block:1.2rem 1.7rem}.chapter-pagination strong{font-size:.9rem}.downloads-inner{padding-block:2.5rem;display:block}.downloads h2{margin-bottom:1.2rem}}@media (width<=410px){.top-navigation a:first-child{display:none}.cover h1{font-size:clamp(2.85rem,11.5vw,3.5rem)}.download-actions{flex-direction:column}.download-button{flex-basis:auto}.source-media.portrait-media,.source-media.small-media{max-width:100%}.chapter-pagination{gap:1rem}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important}}
