@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/variable/pretendardvariable-dynamic-subset.min.css');
@import url('https://fonts.googleapis.com/css2?family=Gaegu:wght@700&family=Noto+Serif+KR:wght@700;900&display=swap');
:root{--paper:#f7f5ef;--ink:#1c202c;--muted:#5b6170;--red:#c4161c;--rule:#a6bfe6;--margin:#f28c8c;--blue:#0066cc;--line:#d5d4ce;--line-ui:#d8d9df;--face:#f2f2f7;--fs-xs:14px;--fs-s:16px;--fs-body:clamp(17px,16.4px + .1vw,18px);--fs-h3:clamp(19px,17.5px + .35vw,21px);--fs-h2:clamp(26px,21px + 1.2vw,38px);--fs-display:clamp(40px,30px + 2.7vw,68px);--space-section:clamp(64px,44px + 4vw,104px);--radius-s:6px;--radius-m:10px;--radius-l:14px;--shadow-1:0 1px 2px rgba(28,32,44,.06);--shadow-2:0 1px 2px rgba(28,32,44,.05),0 12px 32px -16px rgba(28,32,44,.3);--ease:cubic-bezier(.2,.7,.2,1);--dur-micro:160ms;--dur-enter:600ms;--serif:'Noto Serif KR',serif;--sans:'Pretendard Variable',Pretendard,-apple-system,BlinkMacSystemFont,sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.75;word-break:keep-all;overflow-wrap:anywhere}h1,h2,h3,p,figure{margin:0}h1,h2{font-family:var(--serif);text-wrap:balance;letter-spacing:-.045em}h1{font-size:var(--fs-display);font-weight:900;line-height:1.27}h2{font-size:var(--fs-h2);line-height:1.45;font-weight:700}h3{font-size:var(--fs-h3);line-height:1.5;letter-spacing:-.025em}a{color:var(--blue);text-decoration-thickness:1px;text-underline-offset:5px}a:hover{text-decoration-thickness:2px}a:focus-visible,button:focus-visible,select:focus-visible,summary:focus-visible{outline:2px solid var(--red);outline-offset:2px}button,select{font:inherit}img{display:block;max-width:100%;height:auto}svg{max-width:100%}::selection{background:#fff0b3;color:var(--ink)}.skip{position:fixed;z-index:100;top:10px;left:16px;transform:translateY(-150%);background:var(--ink);color:white;padding:10px 18px}.skip:focus{transform:none}.wrap{width:min(1160px,calc(100% - 80px));margin:auto}.topbar{border-top:5px solid var(--ink);border-bottom:1px solid var(--ink);padding:13px 0;display:flex;justify-content:space-between;align-items:center;gap:20px;position:relative}.topbar:after{content:'';height:1px;background:var(--ink);position:absolute;bottom:4px;left:0;right:0}.topbar .brand{color:var(--ink);font-weight:700;text-decoration:none;letter-spacing:-.04em;font-size:18px;display:flex;align-items:center;gap:10px;min-height:44px}.brand img{border-radius:22.37%;width:25px;height:25px}.topnav{display:flex;gap:24px;align-items:center}.topnav a{font-size:14px;color:var(--ink);text-decoration:none;min-height:44px;display:flex;align-items:center}.topnav a:hover{text-decoration:underline}.topnav .nav-cta{font-weight:700}.edition{display:flex;justify-content:space-between;gap:16px;font-size:12px;letter-spacing:.06em;color:var(--muted);padding:15px 0;border-bottom:1px solid var(--line)}.book{position:relative;padding-left:32px}.book:before{content:'';position:absolute;left:0;top:0;bottom:0;width:1px;background:var(--margin)}.hero{display:grid;grid-template-columns:1fr 1.1fr;gap:44px;padding:57px 0 55px;position:relative}.hero:after{content:'';position:absolute;left:48.2%;top:50px;bottom:56px;width:1px;background:var(--rule)}.hero-copy{padding-top:6px;position:relative;z-index:1}.app-name{display:flex;align-items:center;gap:15px;margin-bottom:31px}.app-name img{width:54px;height:54px;border-radius:22.37%}.app-name b{font-size:21px;letter-spacing:-.04em;line-height:1.4}.app-name span{display:block;font-size:12px;letter-spacing:.15em;color:var(--muted);font-weight:500}.hero h1 .red-mark{position:relative;display:inline-block}.red-mark:after{content:'';position:absolute;bottom:-2px;left:-4px;width:102%;height:5px;background:#ff3b30;transform:rotate(-1.5deg);border-radius:60%;transform-origin:left center}.hero .lead{max-width:365px;margin:27px 0 28px;color:var(--muted);font-size:18px;line-height:1.8}.button{display:inline-flex;justify-content:space-between;align-items:center;gap:25px;min-height:54px;padding:13px 24px;background:var(--ink);color:var(--paper);font-weight:600;font-size:15px;text-decoration:none;border:1px solid var(--ink);border-radius:2px;transition:background-color var(--dur-micro) var(--ease),box-shadow var(--dur-micro) var(--ease),transform var(--dur-micro) var(--ease)}.button:hover{background:#343a4a;text-decoration:none;box-shadow:var(--shadow-2)}.button:active{transform:scale(.98)}.button.light{color:var(--ink);background:var(--paper);border-color:var(--paper)}.button.light:hover{background:#fff;border-color:#fff}.price-line{font-size:13px;color:var(--muted);margin:12px 0 18px;line-height:1.7}.text-link{display:inline-flex;align-items:center;gap:20px;min-height:44px;font-weight:600;font-size:15px}.hero-visual{padding-top:4px;min-width:0}.note{font-family:Gaegu,cursive;font-weight:700;font-size:26px;line-height:1.25;color:var(--red)}.hero-visual>.note{margin-bottom:12px;display:flex;justify-content:flex-end;padding-right:18px}.caption{font-size:12px;color:var(--muted);line-height:1.7;margin-top:12px}.hero-visual .caption{display:flex;justify-content:space-between;gap:12px}.ui{font-family:var(--sans);background:var(--face);color:var(--ink);border:1px solid var(--line-ui);border-radius:var(--radius-m);overflow:hidden;text-align:left;box-shadow:var(--shadow-2)}.editor{position:relative}.editor-head{display:flex;justify-content:space-between;align-items:center;font-size:13px;font-weight:600;padding:14px 15px;gap:10px;background:#fbfbfd;line-height:1.4}.editor-actions{display:flex;align-items:center;gap:15px;font-size:18px;color:#252936}.small-symbol{display:inline-flex;align-items:center;justify-content:center;min-width:20px}.thumb-strip{display:flex;gap:9px;align-items:center;border-bottom:1px solid #d8d9df;padding:10px 17px;color:#626777;font-size:11px}.thumb{height:47px;width:34px;background:white;border:1px solid #d8d9df;padding:6px 4px;position:relative}.thumb:after{content:'';display:block;height:2px;background:#b6b9c4;box-shadow:0 5px #dcdee5,0 10px #dcdee5}.thumb.active{outline:2px solid #007aff}.thumb-num{font-size:9px;position:absolute;bottom:-1px;right:3px;color:#0066cc}.pdf-wrap{padding:20px 25px 24px;position:relative}.pdf{background:#fff;min-height:325px;padding:26px 25px 26px;position:relative;border:1px solid #e3e3e7;box-shadow:0 4px 7px #1c202c08}.pdf-top{display:flex;justify-content:space-between;align-items:center;font-size:10px;border-bottom:1px solid #d2d5de;padding-bottom:12px;margin-bottom:20px;letter-spacing:.035em}.pdf .pdf-question{font-size:16px;line-height:1.8}.pdf p{font-size:12px;line-height:1.9;margin-top:8px}.math{font-family:Georgia,serif;font-size:25px;margin:16px 0;line-height:1.5;letter-spacing:.03em}.choices{display:flex;justify-content:space-between;font-size:12px;margin-top:18px}.hand-solution{display:block;width:100%;height:88px;margin-top:8px}.ribbon{position:absolute;right:17px;top:0;background:#ff9500;width:15px;height:25px;clip-path:polygon(0 0,100% 0,100% 100%,50% 74%,0 100%)}.pencilbar{display:flex;gap:13px;align-items:center;justify-content:center;margin:0 auto 16px;padding:9px 14px;border:1px solid #dedfe5;border-radius:40px;width:max-content;max-width:90%;background:#fff}.pen{width:7px;height:24px;display:inline-block;background:linear-gradient(0deg,#a5a9b3 2px,#fff 3px,#fff 15px,#343b49 16px,#343b49 18px,#fff 19px);border:1px solid #bcc0cb;border-radius:2px;position:relative}.pen:before{content:'';position:absolute;top:-4px;left:1px;border-left:2px solid transparent;border-right:2px solid transparent;border-bottom:4px solid #343b49}.pen.yellow{background:#ffdc49}.pen.eraser{background:linear-gradient(#f28c8c 30%,white 30%)}.color-dot{width:15px;height:15px;border-radius:50%;background:var(--ink)}.color-dot.blue{background:#007aff}.color-dot.green{background:#34c759}.color-dot.red{background:#ff3b30}.section{padding:var(--space-section) 0;border-top:1px solid var(--ink);position:relative}.section-heading{display:grid;grid-template-columns:62px 1fr auto;gap:18px;align-items:start;margin-bottom:34px}.number{font-family:var(--serif);font-size:48px;font-weight:700;line-height:1.25;letter-spacing:-.07em}.tag{font-size:12px;color:var(--muted);padding-top:11px;letter-spacing:.1em}.section-intro{font-size:18px;color:var(--muted);max-width:600px;margin:12px 0 0;line-height:1.8}.scenes{display:grid;grid-template-columns:1fr 1fr;gap:0 60px;padding-left:80px}.scene{padding:25px 0;border-top:1px solid var(--line);display:grid;grid-template-columns:30px 1fr;gap:13px}.scene b{font-size:17px}.scene p{font-size:14px;color:var(--muted);margin-top:7px}.bubble{font-size:20px;line-height:1.4}.spread{display:grid;grid-template-columns:1fr 1fr;gap:54px;align-items:center;margin-left:80px}.spread.wide{margin-left:0;grid-template-columns:1.15fr 1fr}.copy p{margin-top:14px;color:var(--muted)}.copy .note{color:var(--red);margin-top:22px}.copy h3{margin-bottom:10px}.copy ul{padding-left:19px;margin:18px 0 0}.copy li{margin:10px 0}.shot{background:#eaeaf0;border:1px solid var(--line-ui);border-radius:var(--radius-m);padding:9px;overflow:hidden;box-shadow:var(--shadow-1)}.shot img{width:100%;border-radius:5px}.shot-tall{max-width:380px;margin:0 auto}.shot-crop{max-height:450px;overflow:hidden}.shot-crop img{margin-top:-9px}.feature-list{margin-left:80px}.feature-row{display:grid;grid-template-columns:130px 1fr 220px;gap:25px;align-items:center;border-top:1px solid var(--line);padding:23px 0}.feature-row:last-child{border-bottom:1px solid var(--line)}.feature-row h3{font-size:18px}.feature-row p{color:var(--muted);font-size:15px}.mini-tags{display:flex;flex-wrap:wrap;gap:8px}.label{border:1px solid #c5c9d3;padding:5px 10px;border-radius:6px;font-size:12px;color:var(--ink);background:#fff;line-height:1.6}.label.wrong{color:var(--red);background:#ff3b300b;border-color:#f28c8c}.label.bookmark{border-color:#e9b372;background:#fff9ec}.search-ui{padding:22px;background:var(--face);border:1px solid var(--line-ui);border-radius:var(--radius-m);box-shadow:var(--shadow-1)}.searchbar{padding:10px 14px;border-radius:9px;border:1px solid #d5d8e1;color:#525767;background:#e8e8ee;font-size:14px;display:flex;gap:10px}.search-title{font-size:12px;color:var(--muted);padding:22px 0 9px}.search-result{padding:16px 18px;background:#fff;border-bottom:1px solid #e3e4e9;font-size:14px}.search-result:first-of-type{border-radius:8px 8px 0 0}.search-result:last-child{border-radius:0 0 8px 8px}.search-result p{font-size:13px;color:#525767;margin-top:7px}.badge{font-size:11px;line-height:1.4;padding:3px 7px;display:inline-block;border-radius:4px;margin-left:7px;font-weight:600}.badge.pdf-badge{color:#146268;background:#d8f0ee}.badge.ink-badge{color:#94326b;background:#fbe3ef}.badge.text-badge{color:#22603c;background:#dcefe1}mark{background:#fff0b3;color:inherit;padding:0 2px}.review-section{background:#eeede6;margin-left:-32px;padding-left:32px;padding-right:32px;margin-right:-32px;border-bottom:1px solid var(--ink)}.review-layout{display:grid;grid-template-columns:.85fr 1.3fr;gap:46px;margin-left:80px;align-items:start}.review-panel{border:1px solid var(--line-ui);border-radius:var(--radius-m);background:var(--face);padding:24px;box-shadow:var(--shadow-1)}.demo-label{font-size:11px;letter-spacing:.09em;color:var(--muted);margin-bottom:17px}.filter-fields{display:grid;grid-template-columns:1fr 1fr;gap:15px}.filter-fields label{display:flex;flex-direction:column;font-size:12px;color:var(--muted);gap:5px}.filter-fields select{color:var(--blue);background:white;min-height:45px;border:1px solid #c3c9d5;border-radius:6px;padding:7px 12px;font-size:14px;width:100%}.result-status{font-size:13px;margin:19px 0 15px;color:var(--ink);font-weight:600}.result-status.changed{text-decoration:underline;text-decoration-color:#ff3b30;text-decoration-thickness:3px;text-underline-offset:6px}.empty-result{padding:34px 10px;text-align:center;font-size:14px}.review-reference{margin:28px 0 0}.review-reference summary{font-size:13px;min-height:44px;cursor:pointer;display:flex;align-items:center;color:var(--blue);gap:9px}.table-wrap{overflow-x:auto}.data-table{border-collapse:collapse;width:100%;font-size:12px;line-height:1.7;text-align:left;font-variant-numeric:tabular-nums}.data-table th,.data-table td{border-bottom:1px solid #ccd0d8;padding:9px 8px;vertical-align:top}.data-table th{font-weight:600}.data-table caption{text-align:left;font-size:12px;color:var(--muted);padding:8px 0}.review-shot{margin-top:20px;display:flex;gap:13px;align-items:center}.review-shot img{width:76px;border:1px solid #d5d8df;border-radius:5px}.review-shot .caption{margin:0;font-size:11px}.flashcard{background:white;border:1px solid var(--line-ui);border-radius:var(--radius-m);padding:26px;box-shadow:var(--shadow-2)}.flashcard-head{font-size:12px;display:flex;justify-content:space-between;border-bottom:1px solid #e3e4e9;padding-bottom:15px;margin-bottom:27px}.flashcard h3{font-size:21px;font-weight:500;min-height:100px;padding-top:10px}.flashcard details{border-top:1px solid #e3e4e9}.flashcard summary{min-height:48px;color:var(--blue);cursor:pointer;padding:10px 0;font-size:14px}.flashcard details p{font-size:15px;padding:5px 0 15px}.card-replies{display:flex;justify-content:space-between;margin-top:17px;font-size:12px;color:var(--muted)}.intervals{display:flex;align-items:center;gap:0;border-top:1px solid var(--rule);border-bottom:1px solid var(--rule);margin-top:24px}.intervals span{flex:1;text-align:center;padding:12px 0;border-right:1px solid var(--rule);font-size:12px}.intervals span:last-child{border:0}.intervals b{display:block;font-size:19px}.backup-path{display:flex;border-top:1px solid var(--rule);border-bottom:1px solid var(--rule);margin:25px 0 0}.backup-path span{flex:1;font-size:12px;text-align:center;padding:14px 5px;border-right:1px solid var(--rule)}.backup-path span:last-child{border:0}.backup-path b{display:block;font-size:15px}.restore-row{display:flex;justify-content:space-between;gap:10px;margin-top:14px;font-size:12px;color:var(--muted)}.restore-row span:before{content:'○';color:var(--ink);margin-right:4px}.guide-summary{padding-left:80px}.steps-five{display:grid;grid-template-columns:repeat(5,1fr);margin:32px 0;border-top:1px solid var(--rule);border-bottom:1px solid var(--rule)}.step-five{padding:20px 16px 22px;border-right:1px solid var(--rule)}.step-five:first-child{padding-left:0}.step-five:last-child{border:0}.step-five span{font-family:var(--serif);font-size:28px;line-height:1.4}.step-five h3{font-size:16px;margin:13px 0 8px}.step-five p{font-size:12px;color:var(--muted);line-height:1.75}.answer-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;margin-left:80px}.spec-table{width:100%;border-collapse:collapse;font-size:14px}.spec-table th,.spec-table td{border-top:1px solid var(--line);text-align:left;padding:13px 0;vertical-align:top}.spec-table th{font-weight:500;width:100px;padding-right:15px}.spec-table td{color:var(--muted)}.privacy-copy p{font-size:14px;color:var(--muted);margin:12px 0}.permissions{display:flex;gap:18px;border-top:1px solid var(--line);margin-top:18px;padding-top:13px;font-size:12px}.purchase{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;margin-left:80px}.purchase-price{font-family:var(--serif);font-size:54px;line-height:1.3}.purchase-price small{font-family:var(--sans);font-size:15px;display:block;margin-top:13px;color:var(--muted);letter-spacing:0}.purchase p{font-size:15px;color:var(--muted)}.faq-list{margin-left:80px}.faq-list details{border-top:1px solid var(--line)}.faq-list details:last-child{border-bottom:1px solid var(--line)}.faq-list summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:16px;min-height:65px;padding:14px 0;font-size:16px;font-weight:500;line-height:1.7}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:before{content:'';display:block;flex-shrink:0;width:15px;height:20px;border:1px solid var(--ink);border-radius:50%}.faq-list details[open] summary:before{background:var(--ink)}.faq-list summary:after{content:'+';margin-left:auto;font-size:22px;font-weight:400}.faq-list details[open] summary:after{content:'−'}.faq-list details>p{padding:0 35px 24px;color:var(--muted);font-size:14px;max-width:810px}.end-cover{margin-top:0;background:var(--ink);color:var(--paper);padding:65px 75px;display:flex;align-items:center;justify-content:space-between;gap:30px}.end-cover .eyebrow{font-size:12px;letter-spacing:.12em;color:#b9becb;margin-bottom:18px}.end-cover h2{font-size:var(--fs-h2);line-height:1.5}.end-cover p{font-size:14px;color:#b9becb;margin:15px 0 22px}.end-cover .end-number{font-family:var(--serif);font-size:130px;color:#f7f5ef19;line-height:1}.footer{padding:34px 0 24px}.footer-links{display:flex;flex-wrap:wrap;gap:10px 30px}.footer a{display:inline-flex;align-items:center;gap:8px;min-height:44px;color:var(--ink);font-size:13px;text-decoration:none}.footer a:hover{text-decoration:underline}.footer a:before{content:'';height:15px;width:10px;border:1px solid #737986;border-radius:50%}.footer-label{font-size:11px;color:var(--muted);margin:19px 0 2px}.footer-meta{border-top:1px solid var(--ink);padding-top:16px;margin-top:22px;display:flex;justify-content:space-between;font-size:11px;color:var(--muted);gap:20px}.guide-header{padding:45px 0 40px;border-bottom:1px solid var(--ink)}.guide-header h1{font-size:calc(var(--fs-display)*.8);line-height:1.4}.guide-header p{font-size:17px;color:var(--muted);max-width:620px;margin-top:17px}.guide-header .eyebrow{font-size:12px;color:var(--red);letter-spacing:.1em;margin-bottom:12px}.guide-layout{display:grid;grid-template-columns:145px 1fr;gap:45px;align-items:start}.guide-toc{position:sticky;top:92px;padding-top:34px;font-size:12px}.toc-title{font-size:11px;letter-spacing:.1em;color:var(--muted);margin-bottom:15px}.guide-toc a{display:flex;align-items:center;gap:9px;min-height:44px;color:var(--muted);text-decoration:none;line-height:1.5}.guide-toc a span{display:flex;align-items:center;justify-content:center;width:23px;height:26px;border:1px solid #8b909b;border-radius:50%;flex-shrink:0;font-size:11px;font-weight:600;color:var(--ink)}.guide-toc a.active{color:var(--ink);font-weight:600}.guide-toc a.active span{background:var(--ink);color:var(--paper);border-color:var(--ink)}.guide-main{min-width:0;border-left:1px solid var(--rule);padding-left:30px}.chapter{padding:42px 0 45px;border-bottom:1px solid var(--ink);scroll-margin-top:96px}.chapter-heading{display:flex;gap:17px;margin-bottom:27px;align-items:baseline}.chapter-letter{font-family:var(--serif);font-size:39px;line-height:1.3}.chapter-subtitle{font-size:13px;color:var(--muted);margin-bottom:24px}.instruction-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:29px;align-items:start}.instructions{margin:0;padding:0;list-style:none;counter-reset:guide}.instructions li{counter-increment:guide;position:relative;padding-left:27px;font-size:14px;margin-bottom:17px}.instructions li:before{content:counter(guide);position:absolute;left:0;top:3px;width:18px;height:18px;border:1px solid var(--red);color:var(--red);border-radius:50%;font-size:11px;line-height:17px;text-align:center;font-weight:700}.instructions strong{font-weight:650;color:var(--ink)}.instructions .secondary{display:block;font-size:12px;color:var(--muted);margin-top:6px}.guide-ui{position:relative;font-size:13px;border:1px solid var(--line-ui);border-radius:var(--radius-m);background:var(--face);box-shadow:var(--shadow-1);padding:19px;line-height:1.7}.guide-ui-title{font-weight:650;font-size:14px;text-align:center;padding-bottom:14px}.ui-group{background:white;border-radius:8px;overflow:hidden;margin-top:12px}.ui-row{padding:11px 13px;display:flex;justify-content:space-between;gap:9px;border-bottom:1px solid #e4e6eb;font-size:12px;position:relative;align-items:center;line-height:1.7}.ui-row:last-child{border-bottom:0}.ui-blue{color:var(--blue)}.ui-muted{color:var(--muted)}.ui-heading{font-size:11px;color:var(--muted);margin:17px 4px 4px}.ui-pin{font-size:11px;font-weight:650;display:inline-flex;align-items:center;justify-content:center;width:20px;height:20px;border-radius:50%;border:1px solid var(--red);color:var(--red);flex-shrink:0}.pin-row{display:flex;align-items:center;gap:9px}.onboarding{text-align:center;background:white;padding:24px 20px}.onboarding .welcome{font-size:20px;font-weight:700;line-height:1.6;margin:10px 0 18px}.onboarding .ui-row{text-align:left;align-items:center}.ui-button{background:var(--blue);color:white;border-radius:7px;padding:10px 15px;font-size:13px;margin-top:20px;text-align:center}.ui-toggle{height:18px;width:31px;background:#228741;border-radius:20px;flex-shrink:0;position:relative}.ui-toggle:after{content:'';position:absolute;width:14px;height:14px;border-radius:50%;background:white;right:2px;top:2px}.help-boxes{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:27px}.help-box{border-top:2px solid var(--rule);padding:14px 0 0;font-size:12px;color:var(--muted)}.help-box b{display:block;font-size:12px;color:var(--ink);margin-bottom:5px}.help-box.wrong{border-color:var(--margin)}.help-box.wrong b{color:var(--red)}.guide-image{max-width:320px;margin:auto}.guide-image .shot{padding:6px}.guide-image .caption{font-size:11px}.guide-ui .search-ui{padding:0;border:0}.guide-ui .searchbar{font-size:11px;padding:9px}.guide-ui .search-result{font-size:12px;padding:10px}.guide-ui .search-result p{font-size:11px}.guide-ui .flashcard{padding:15px}.guide-ui .flashcard h3{font-size:17px;min-height:75px}.guide-ui .caption{font-size:11px}.guide-fullrow{margin-top:27px;border-top:1px solid var(--line);padding-top:20px}.guide-fullrow h3{font-size:17px;margin-bottom:12px}.guide-fullrow p{font-size:13px;color:var(--muted);margin-top:10px}.problem-table{width:100%;border-collapse:collapse;font-size:13px}.problem-table th,.problem-table td{text-align:left;vertical-align:top;border-bottom:1px solid var(--line);padding:16px 10px 16px 0}.problem-table th{width:30%;font-weight:600}.problem-table td{color:var(--muted)}.guide-end{padding:40px 0}.guide-end h2{font-size:27px;margin-bottom:20px}.not-found{min-height:70vh;display:flex;flex-direction:column;align-items:flex-start;justify-content:center;gap:24px}.not-found .number{font-size:100px}.not-found h1{font-size:44px}.nojs-only{display:none}html:not(.has-js) .nojs-only{display:block}html:not(.has-js) .filter-fields{display:none}
@media(min-width:1300px){.pdf{min-height:341px}.pdf-wrap{padding:20px 25px 24px}}
@media(max-width:1100px){.hero{gap:32px;grid-template-columns:1fr 1.1fr}.hero:after{left:47.5%}.app-name{margin-bottom:25px}.hero .lead{font-size:17px}.pdf-wrap{padding:16px}.pdf{padding:22px 20px}.pdf .pdf-question{font-size:14px}.pdf .math{font-size:22px}.editor-actions{gap:11px}.feature-row{grid-template-columns:100px 1fr 175px}.review-layout{margin-left:0;gap:28px;grid-template-columns:.8fr 1.3fr}.guide-layout{grid-template-columns:125px 1fr;gap:25px}.guide-main{padding-left:23px}.instruction-grid{gap:22px}}
@media(max-width:850px){.wrap{width:calc(100% - 48px)}.book{padding-left:22px}.hero{gap:26px;padding-top:40px}.hero:after{left:46.5%}.hero .lead{font-size:15px}.app-name{gap:10px}.app-name img{width:42px;height:42px}.app-name b{font-size:17px}.hero-visual>.note{font-size:24px}.editor-head{padding:12px 10px;font-size:11px}.editor-actions{font-size:15px;gap:8px}.pdf-wrap{padding:12px}.pdf{padding:18px 15px;min-height:293px}.pdf-top{font-size:8px;margin-bottom:13px}.pdf p{font-size:10px}.pdf .pdf-question{font-size:12px}.choices{font-size:10px}.pencilbar{gap:10px}.section-heading{grid-template-columns:49px 1fr auto;gap:13px}.number{font-size:40px}.section-intro{font-size:16px}.scenes,.spread,.feature-list,.guide-summary,.answer-grid,.purchase,.faq-list{margin-left:0;padding-left:0}.scenes{gap:0 30px}.spread{gap:27px}.feature-row{grid-template-columns:92px 1fr 140px;gap:15px}.feature-row p{font-size:13px}.feature-row h3{font-size:16px}.review-section{margin-left:-22px;padding-left:22px;margin-right:-22px;padding-right:22px}.review-layout{grid-template-columns:1fr;gap:26px}.review-panel{padding:22px}.review-layout>.copy{display:grid;grid-template-columns:1fr 1fr;gap:0 25px}.review-layout>.copy h3{grid-column:1/-1}.review-layout>.copy .note{margin-top:16px}.review-shot{grid-column:2;grid-row:2/4;margin:0}.steps-five .step-five{padding:15px 11px}.answer-grid{gap:28px}.end-cover{padding:50px 42px}.guide-layout{display:block}.guide-toc{position:sticky;z-index:5;top:66px;background:var(--paper);display:flex;gap:5px;flex-wrap:wrap;align-items:center;border-bottom:1px solid var(--ink);padding:12px 0}.toc-title{display:none}.guide-toc a{font-size:0;min-height:34px;justify-content:center;min-width:35px;gap:0}.guide-toc a span{font-size:12px}.guide-main{border-left:0;padding-left:0}.instruction-grid{grid-template-columns:1fr 1fr;gap:32px}.chapter{scroll-margin-top:70px}}
@media(max-width:600px){.wrap{width:calc(100% - 36px)}.topbar{padding:8px 0;gap:12px}.topbar .brand{font-size:15px;gap:7px}.brand img{width:21px;height:21px}.topnav{gap:15px}.topnav a{font-size:12px}.topnav .desktop-nav{display:none}.edition{font-size:10px;letter-spacing:.02em;padding:12px 0}.edition span:last-child{max-width:120px;text-align:right}.book{padding-left:15px}.hero{grid-template-columns:1fr;gap:30px;padding:33px 0 39px}.hero:after{display:none}.hero-copy{padding-top:0}.app-name{margin-bottom:23px}.app-name img{width:43px;height:43px}.app-name b{font-size:18px}.hero h1{line-height:1.43;letter-spacing:-.055em}.hero .lead{max-width:320px;font-size:15px;margin:21px 0 21px;line-height:1.8}.button{min-height:52px;padding:12px 18px;font-size:14px;gap:23px}.price-line{font-size:11px;margin:10px 0 12px}.text-link{font-size:14px}.hero-visual>.note{justify-content:flex-start;padding-left:7px;margin-bottom:10px}.hero-visual .caption{font-size:10px}.editor-head{font-size:12px;padding:12px}.editor-actions{font-size:16px;gap:12px}.pdf-wrap{padding:15px 17px 18px}.pdf{padding:22px 20px;min-height:310px}.pdf-top{font-size:9px}.pdf .pdf-question{font-size:13px}.pdf p{font-size:11px}.pdf .math{font-size:22px}.choices{font-size:11px}.section-heading{grid-template-columns:35px 1fr;gap:12px;margin-bottom:24px}.number{font-size:31px;line-height:1.5}.section h2{line-height:1.5;letter-spacing:-.04em}.tag{position:absolute;top:14px;right:0;font-size:9px;padding:0}.section-intro{font-size:14px;margin-top:10px}.scenes{grid-template-columns:1fr;gap:0}.scene{padding:18px 0;grid-template-columns:24px 1fr;gap:10px}.scene b{font-size:15px}.scene p{font-size:13px;line-height:1.8}.bubble{font-size:17px}.spread,.spread.wide{grid-template-columns:1fr;gap:27px}.spread .copy h3{font-size:19px}.copy p,.copy li{font-size:14px;line-height:1.8}.shot-tall{max-width:280px}.shot-crop{max-height:395px}.feature-row{grid-template-columns:80px 1fr;gap:12px;padding:20px 0}.feature-row h3{font-size:15px}.feature-row .mini-tags{grid-column:2}.feature-row p{font-size:13px}.search-ui{padding:17px}.searchbar{font-size:12px}.search-result{font-size:13px;padding:14px 12px}.search-result p{font-size:12px}.review-section{margin-left:-15px;padding-left:15px;margin-right:0;padding-right:0}.review-layout>.copy{display:block}.review-layout>.copy .note{font-size:25px;margin-top:16px}.review-shot{margin-top:20px}.review-panel{padding:17px 14px;margin-right:0}.filter-fields{gap:10px}.filter-fields select{font-size:13px;padding:7px 9px}.data-table{font-size:10px}.data-table th,.data-table td{padding:8px 5px}.flashcard{padding:23px}.intervals span{font-size:10px}.intervals b{font-size:16px}.steps-five{display:block;margin:22px 0}.step-five,.step-five:first-child{display:grid;grid-template-columns:29px 88px 1fr;gap:9px;align-items:start;border-right:0;border-bottom:1px solid var(--rule);padding:16px 0}.step-five:last-child{border-bottom:0}.step-five span{font-size:22px}.step-five h3{font-size:13px;margin:2px 0}.step-five p{font-size:11px}.answer-grid{grid-template-columns:1fr;gap:32px}.spec-table{font-size:13px}.spec-table th{width:88px}.purchase{grid-template-columns:1fr;gap:25px}.purchase-price{font-size:45px}.purchase-price small{font-size:13px}.purchase p{font-size:14px}.faq-list summary{font-size:14px;gap:11px;min-height:64px}.faq-list details>p{padding:0 0 20px 26px;font-size:13px}.faq-list summary:before{width:12px;height:17px}.end-cover{padding:39px 24px;margin-left:-15px;display:block}.end-cover p{font-size:13px}.end-cover .end-number{display:none}.footer-links{gap:5px 20px}.footer a{font-size:12px}.footer-meta{font-size:10px}.guide-header{padding:30px 0}.guide-header h1{letter-spacing:-.05em}.guide-header p{font-size:14px}.guide-header .eyebrow{font-size:11px}.guide-toc{gap:0;justify-content:space-between;padding:8px 0}.guide-toc a{min-width:28px;min-height:40px}.guide-toc a span{width:21px;height:24px;font-size:10px}.chapter{padding:32px 0;scroll-margin-top:65px}.chapter-heading{gap:13px;margin-bottom:20px}.chapter-letter{font-size:31px}.chapter h2{line-height:1.6}.chapter-subtitle{font-size:12px}.instruction-grid{grid-template-columns:1fr;gap:23px}.instructions li{font-size:13px;padding-left:27px;margin-bottom:16px}.guide-ui{padding:18px;max-width:100%}.guide-image{max-width:260px}.help-boxes{grid-template-columns:1fr;gap:19px}.help-box{font-size:12px}.guide-fullrow p{font-size:12px}.problem-table{font-size:12px}.problem-table th{width:30%;padding-right:14px}.guide-end h2{font-size:25px}.not-found h1{font-size:32px}.not-found{min-height:65vh}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}

/* build2: 단계 번호 대응과 모바일 독서 리듬 */
@media(max-width:600px){.hero{padding-top:27px;gap:23px}.hero .lead{margin-top:17px;margin-bottom:18px;line-height:1.7}.app-name{margin-bottom:18px}.hero h1{line-height:1.35}.guide-toc{display:grid;grid-template-columns:repeat(5,1fr);gap:0;padding:5px 0}.guide-toc a{min-width:44px;min-height:44px;font-size:10px;gap:5px;justify-content:flex-start;white-space:nowrap}.guide-toc a span{width:19px;height:23px;font-size:10px}.chapter{scroll-margin-top:110px}.guide-header .caption{font-size:11px;line-height:1.8}.permissions{flex-wrap:wrap;gap:8px 14px}.hero-visual .caption{flex-direction:column;gap:0}.topbar .brand>span{font-size:12px}.review-reference summary{font-size:12px}}

/* build3: 큰 글씨, 실제 화면 조각, 명시적인 상대 경로 */
body{font-size:var(--fs-body);line-height:1.7}.caption{font-size:14px!important;line-height:1.7!important}.copy p,.copy li{font-size:18px;line-height:1.75}.scene b{font-size:19px}.scene p,.feature-row p{font-size:17px}.scene{padding:28px 0}.feature-row h3{font-size:19px}.feature-row{grid-template-columns:130px 1fr 190px}.section-heading{margin-bottom:38px}.label{font-size:14px}.instructions li{font-size:17px;line-height:1.75;margin-bottom:21px}.instructions .secondary{font-size:14px}.help-box,.guide-fullrow p{font-size:15px;line-height:1.8}.help-box b{font-size:15px}.chapter{padding-top:50px;padding-bottom:50px}.problem-table{font-size:16px;line-height:1.8}.privacy-copy p,.purchase p{font-size:17px}.spec-table{font-size:16px}.steps-five p{font-size:15px}.step-five h3{font-size:18px}.steps-five .step-five{padding:22px 14px}.faq-list summary{font-size:18px}.faq-list details>p{font-size:17px}.permissions{font-size:14px;flex-wrap:wrap}.purchase-price small{font-size:16px}.result-status,.filter-fields label,.filter-fields select{font-size:15px}.filter-fields select{border-color:#7e8798}.demo-label{font-size:14px}.data-table{font-size:14px}.guide-ui .caption{font-size:14px}.ui-row{font-size:14px}.ui-group .ui-row{padding:13px}.ui-heading{font-size:14px}.guide-ui-title{font-size:16px}.guide-toc a{font-size:14px;min-width:44px;min-height:44px}.toc-long,.toc-short{font-weight:inherit}.toc-short{display:none}.image-link{display:inline-flex;align-items:center;min-height:44px;font-size:14px}.editor-detail{max-width:100%;padding:22px;background:#eeedf1;border:1px solid var(--line-ui);border-radius:var(--radius-m);box-shadow:var(--shadow-1)}.editor-detail .ui-heading{margin:0 0 12px;color:var(--muted)}.crop-pin-frame{position:relative}.crop-pin-frame img{border-radius:5px;border:1px solid #d6d9df;width:100%}.crop-pin{position:absolute;background:#fff;box-shadow:0 0 0 3px #fff}.nav-pin{left:26%;top:72%}.tools-pin{left:22%;top:70%}.editor-detail .caption{margin-top:12px}.detail-shot{max-width:440px}.guide-image.detail-shot{max-width:360px}.review-reference summary{font-size:14px}.review-shot img{width:92px}.search-result{font-size:16px}.search-result p{font-size:15px}.searchbar{font-size:16px}.flashcard summary,.flashcard details p{font-size:16px}.review-layout{grid-template-columns:.9fr 1.2fr}.footer a{font-size:14px}.topnav a{font-size:14px}.hero-visual .caption{display:block}.hero-visual .caption span{display:block}.review-layout>.copy .caption{font-size:14px!important}.review-section .table-wrap{overflow:visible}.instructions{max-width:680px}
@media(max-width:1100px){.feature-row{grid-template-columns:100px 1fr 165px}.review-layout{grid-template-columns:.9fr 1.2fr}}
@media(max-width:850px){.wrap{width:calc(100% - 56px)}.review-layout{grid-template-columns:1fr}.review-layout>.copy{display:block}.review-shot{margin-top:22px}.copy p,.copy li{font-size:17px}.feature-row{grid-template-columns:90px 1fr 145px}.guide-toc a{font-size:0;min-width:44px;min-height:44px}.instruction-grid{grid-template-columns:1fr;gap:27px}.instruction-grid>figure{max-width:550px;width:100%;margin:0}.guide-ui{max-width:480px}.guide-image.detail-shot{max-width:360px}.guide-layout .faq-list{margin-left:0}}
@media(max-width:600px){.wrap{width:calc(100% - 40px)}.topnav a{font-size:12px}.scene b{font-size:17px}.scene p,.copy p,.copy li,.feature-row p{font-size:17px;line-height:1.75}.scene{padding:22px 0}.feature-row{grid-template-columns:1fr;gap:9px;padding:24px 0}.feature-row h3{font-size:19px}.feature-row .mini-tags{grid-column:auto}.section-heading{margin-bottom:26px}.label{font-size:14px}.filter-fields select{font-size:15px}.filter-fields label{font-size:14px}.demo-label,.result-status{font-size:14px}.search-result{font-size:15px}.search-result p{font-size:14px}.searchbar{font-size:14px}.review-panel{padding:19px 14px}.review-shot{align-items:flex-start}.review-reference summary{font-size:14px}.steps-five .step-five{padding:20px 0;grid-template-columns:31px 1fr}.step-five h3{font-size:17px;margin:2px 0}.step-five p{font-size:16px;grid-column:2}.step-five p br{display:none}.spec-table{font-size:16px}.privacy-copy p,.purchase p{font-size:17px}.purchase-price small{font-size:15px}.faq-list summary{font-size:17px}.faq-list details>p{font-size:17px}.guide-header .caption{font-size:14px}.guide-header p{font-size:17px}.guide-toc{position:static;grid-template-columns:repeat(5,1fr);gap:0}.guide-toc a{font-size:12px;min-width:44px;min-height:48px;gap:5px}.guide-toc .toc-long{display:none}.guide-toc .toc-short{display:inline}.instructions li{font-size:17px;line-height:1.75}.chapter{padding-top:40px;padding-bottom:40px;scroll-margin-top:84px}.help-box,.guide-fullrow p{font-size:16px;line-height:1.75}.help-boxes{gap:23px}.ui-row{font-size:15px}.guide-ui .ui-group .ui-row{padding:13px}.guide-ui-title{font-size:17px}.problem-table{font-size:16px}.problem-table tr{display:block;padding:19px 0;border-bottom:1px solid var(--line)}.problem-table th,.problem-table td{display:block;width:100%;padding:0;border:0}.problem-table td{margin-top:9px}.permissions{font-size:14px}.editor-detail{padding:17px}.detail-shot,.guide-image.detail-shot{max-width:100%}.image-link{font-size:14px}.footer a{font-size:14px}.data-table,.data-table tbody{display:block;font-size:15px}.data-table thead{display:none}.data-table tr{display:block;padding:14px 0;border-bottom:1px solid #b8bdc8}.data-table th,.data-table td{display:block;border:0;padding:3px 0}.data-table th{font-size:17px}.data-table td[data-label]:before{content:attr(data-label)' · ';font-weight:600;color:var(--ink)}.nojs-only .data-table td:nth-child(2):before{content:'모든 필기 · '}.nojs-only .data-table td:nth-child(3):before{content:'오답노트 · '}.nojs-only .data-table td:nth-child(4):before{content:'책갈피 · '}.guide-main .faq-list{margin:0}.end-cover{padding:40px 23px}.guide-header .eyebrow{font-size:14px}}

/* build4: 요약 시트, 한 번의 결과 알림, 태블릿 펼침면 */
:root{--sans:'Pretendard Variable',Pretendard,-apple-system,BlinkMacSystemFont,'Apple SD Gothic Neo','Malgun Gothic',sans-serif}.section-intro{font-size:18px}.demo-label,.card-meta,.edition,.price-line,.purchase-price small{font-variant-numeric:tabular-nums}.instructions li{font-size:18px}.summary-preview{margin-bottom:24px;background:#f2f2f7}.summary-head{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #d5d8e1;padding-bottom:13px;font-size:15px}.summary-preview h3{font-size:16px;margin:20px 0 14px}.summary-preview p{font-size:15px;line-height:1.8;margin:12px 0}.summary-preview h4{font-size:15px;margin:20px 0 10px}.summary-copy{border:1px solid #7e8798;border-radius:5px;color:var(--blue);padding:5px 11px;font-size:14px}.summary-preview .caption{margin-top:20px}.data-table caption{font-size:14px}.footer-label,.footer-meta{font-size:12px}.backup-shot{position:relative}.backup-pin{left:88%;top:50%}.hero h1{text-wrap:balance}
@media(min-width:601px) and (max-width:850px){.instruction-grid{grid-template-columns:1.05fr 1fr;gap:29px}.guide-ui{max-width:none}.instruction-grid>figure{margin:0;max-width:none}.instructions li{font-size:17px}}
@media(max-width:600px){.section-intro{font-size:17px}.instructions li{font-size:17px}.summary-preview p{font-size:16px}.summary-preview h3{font-size:17px}.hero-visual .caption{display:block}.caption{line-height:1.7}.guide-header p{max-width:100%}}

/* 독립 리뷰: 제목 위계, 태블릿 목차와 키보드·터치 접근성 */
.pdf .pdf-question{font-weight:700;letter-spacing:-.025em;margin-top:0}
.faq-list p a,.help-box a{display:inline-flex;align-items:center;min-height:44px;min-width:44px}
.topnav a{min-width:44px;justify-content:center}
.guide-toc a{min-width:44px}
@media(min-width:601px) and (max-width:850px){
 .guide-toc{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:3px 8px;padding:9px 0}
 .guide-toc a{font-size:13px;min-height:48px;gap:7px;justify-content:flex-start}
 .guide-toc .toc-long{display:inline}.guide-toc .toc-short{display:none}
 .chapter{scroll-margin-top:180px}
}

/* polish-20261025: 고정 헤더, 토큰, 복습 행, 모션 언어(획 그리기 → 채점 표시 → 페이지 넘김) */
.site-head{position:sticky;top:0;z-index:50;background:var(--paper)}
.site-head .topbar{transition:padding var(--dur-micro) var(--ease)}
.site-head.is-scrolled .topbar{padding-top:8px;padding-bottom:8px}
.site-head.is-scrolled{box-shadow:0 1px 0 var(--line)}
html{scroll-padding-top:96px}
.topnav a{transition:color var(--dur-micro) var(--ease)}
code,kbd{font-family:var(--sans);font-size:.92em;font-weight:600;color:var(--ink);background:#fff;border:1px solid var(--line-ui);border-radius:4px;padding:1px 6px;font-variant-numeric:tabular-nums;white-space:nowrap}
.caption,.demo-label,.tag,.edition{font-size:var(--fs-xs)}
.chapter-letter{flex-shrink:0;white-space:nowrap}
.copy h3+p{margin-top:0}
.review-day{font-size:var(--fs-xs);font-weight:600;color:var(--muted);letter-spacing:.02em;margin:20px 0 8px}
.review-day:first-child{margin-top:0}
.review-items{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.review-card{display:grid;grid-template-columns:44px 1fr;gap:14px;align-items:center;background:#fff;border:1px solid var(--line-ui);border-radius:var(--radius-s);padding:10px 14px 10px 10px;box-shadow:var(--shadow-1);min-width:0}
.review-thumb{width:44px;height:58px;display:block}
.review-thumb .ink{stroke-dasharray:1}
.review-card .card-title{font-size:var(--fs-s);font-weight:600;line-height:1.5}
.review-card .card-meta{font-size:var(--fs-xs);color:var(--muted);line-height:1.6;margin-top:2px;font-variant-numeric:tabular-nums}
.review-shot img{width:112px}
#review-results{transition:opacity 180ms var(--ease),transform 180ms var(--ease)}
html.has-js #review-results.is-turning{opacity:0;transform:translateX(12px)}
html.has-js #review-results.is-entering{opacity:0;transform:translateX(-12px);transition:none}
.hand-solution .ink-blue,.hand-solution .ink-red{stroke-dasharray:1}
.mobile-cta{display:none}
@media(min-width:601px) and (max-width:850px){.hero{grid-template-columns:1fr 1fr}.hero h1{font-size:min(var(--fs-display),44px)}}
.chapter h2{font-size:max(24px,calc(var(--fs-h2)*.8))}
@media(max-width:600px){.edition{font-size:12px}.edition span:last-child{max-width:none;white-space:nowrap}.data-table caption{display:block;width:100%}}
@media(max-width:640px){
 .mobile-cta{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:40;align-items:center;justify-content:space-between;gap:12px;padding:10px 20px calc(10px + env(safe-area-inset-bottom));background:var(--paper);border-top:1px solid var(--ink);transition:transform .28s var(--ease),opacity .28s var(--ease)}
 .mobile-cta .button{min-height:44px;padding:8px 16px;font-size:14px;gap:12px;flex-shrink:0}
 .mobile-cta-price{font-size:12px;color:var(--muted);line-height:1.45;font-variant-numeric:tabular-nums}
 body.has-mobile-cta{padding-bottom:calc(76px + env(safe-area-inset-bottom))}
 html.has-js .mobile-cta.is-hidden{transform:translateY(110%);opacity:0;pointer-events:none}
 .topnav .nav-cta{display:none}
 .topnav{gap:0}
}
@keyframes ink-draw{from{stroke-dashoffset:1}to{stroke-dashoffset:0}}
@keyframes ink-fade{from{opacity:0;transform:translateY(3px)}to{opacity:1;transform:none}}
@keyframes mark-draw{from{transform:rotate(-1.5deg) scaleX(0)}to{transform:rotate(-1.5deg) scaleX(1)}}
@media(prefers-reduced-motion:no-preference){
 html.has-js .hero-visual:not(.is-inked) .ink-blue,html.has-js .hero-visual:not(.is-inked) .ink-red{stroke-dashoffset:1}
 html.has-js .hero-visual:not(.is-inked) .ink-note{opacity:0}
 html.has-js .hero-visual.is-inked .ink-blue{animation:ink-draw .7s var(--ease) .2s both}
 html.has-js .hero-visual.is-inked .ink-red{animation:ink-draw .45s var(--ease) .9s both}
 html.has-js .hero-visual.is-inked .ink-note{animation:ink-fade .25s var(--ease) 1.25s both}
 html.has-js .red-mark:after{animation:mark-draw .5s var(--ease) .25s both}
 html.has-js #review-results .review-thumb .ink{animation:ink-draw .4s var(--ease) .15s both}
 html.reveal-ready .reveal{opacity:0;transform:translateY(14px);transition:opacity var(--dur-enter) var(--ease),transform var(--dur-enter) var(--ease)}
 html.reveal-ready .reveal.stagger{opacity:1;transform:none;transition:none}
 html.reveal-ready .reveal.stagger>*{opacity:0;transform:translateY(14px);transition:opacity var(--dur-enter) var(--ease),transform var(--dur-enter) var(--ease)}
 html.reveal-ready .reveal.stagger>*:nth-child(2){transition-delay:70ms}
 html.reveal-ready .reveal.stagger>*:nth-child(3){transition-delay:140ms}
 html.reveal-ready .reveal.stagger>*:nth-child(4){transition-delay:210ms}
 html.reveal-ready .reveal.stagger>*:nth-child(5){transition-delay:280ms}
 html.reveal-ready .reveal.stagger>*:nth-child(n+6){transition-delay:350ms}
 html.reveal-ready .reveal.is-in,html.reveal-ready .reveal.is-in>*{opacity:1;transform:none}
 html.reveal-ready .reveal .ui-pin,html.reveal-ready .instructions.reveal li:before{opacity:0;transform:scale(1.6);transition:opacity 220ms var(--ease) 560ms,transform 260ms var(--ease) 560ms}
 html.reveal-ready .reveal.is-in .ui-pin,html.reveal-ready .instructions.reveal.is-in li:before{opacity:1;transform:none}
 html.reveal-ready .reveal .copy .note{opacity:0;transform:rotate(-2deg) translateY(4px);transition:opacity 300ms var(--ease) 520ms,transform 300ms var(--ease) 520ms}
 html.reveal-ready .reveal.is-in .copy .note{opacity:1;transform:none}
}