:root{color-scheme:light;--paper:#f3f0e7;--ink:#252e2b;--muted:#646c63;--line:#c8c8bb;--card:#f9f6ee;--teal:#32645e;--soft:#e4e8dc;--yellow:#f1c957;--dot:#d5d3c7;--shadow:rgba(44,53,43,.06);font-family:Arial,"Noto Sans KR","Malgun Gothic",sans-serif;font-size:16px;line-height:1.65;color:var(--ink);background:var(--paper)}
@media(prefers-color-scheme:dark){:root:not([data-theme=light]){color-scheme:dark;--paper:#202c29;--ink:#f1eddf;--muted:#b2bcae;--line:#4b5b50;--card:#293732;--teal:#a7c9b4;--soft:#32433a;--dot:#35483c;--shadow:rgba(0,0,0,.14)}}
:root[data-theme=dark]{color-scheme:dark;--paper:#202c29;--ink:#f1eddf;--muted:#b2bcae;--line:#4b5b50;--card:#293732;--teal:#a7c9b4;--soft:#32433a;--dot:#35483c;--shadow:rgba(0,0,0,.14)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:120px}body{margin:0;background-image:radial-gradient(var(--dot) .7px,transparent .9px);background-size:12px 12px}a{color:inherit;text-underline-offset:4px}button,input{font:inherit}button,a,input,summary{touch-action:manipulation}button,summary{cursor:pointer}a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{outline:2px solid var(--teal);outline-offset:5px}button{color:inherit}img{display:block;max-width:100%}h1,h2,h3,p,figure{margin:0}h1,h2,h3{word-break:keep-all;text-wrap:balance}h1,h2{font-weight:400;letter-spacing:-.055em;line-height:1.15}h1{font-size:clamp(3rem,5.25vw,5.1rem)}h2{font-size:clamp(2rem,3.5vw,3.5rem)}h3{font-weight:500;letter-spacing:-.03em;line-height:1.4}a,button{transition:background-color .18s,color .18s,transform .18s}svg{flex-shrink:0}button[hidden],nav[hidden]{display:none!important}
.academy-header{position:sticky;z-index:20;top:22px;max-width:1328px;min-height:68px;margin:22px auto 0;padding:12px 20px;background:var(--card);border:1px solid var(--line);border-radius:10px;box-shadow:0 4px 16px var(--shadow);display:flex;align-items:center;justify-content:space-between;gap:28px}.brand{display:flex;align-items:center;gap:10px;white-space:nowrap;text-decoration:none;font-size:18px;letter-spacing:-.7px}.brand b{font-weight:400;color:var(--teal);margin-left:5px}.academy-mark{width:30px;height:30px;color:var(--teal)}.desktop-nav{display:flex;gap:27px;margin-left:auto}.desktop-nav a{font-size:13px;text-decoration:none}.desktop-nav a:hover{text-decoration:underline}.header-actions{display:flex;align-items:center;gap:16px}.language{font:12px ui-monospace,Consolas,monospace;text-decoration:none;border-left:1px solid var(--line);padding:4px 0 4px 16px}.theme-button{border:0;background:transparent;padding:9px;display:grid;place-items:center;border-radius:5px}.theme-button:hover{background:var(--soft)}.menu-button{display:none}.mobile-nav{position:absolute;top:100%;left:-1px;right:-1px;border:1px solid var(--line);padding:16px 20px;background:var(--card);border-radius:0 0 10px 10px}.mobile-nav a{display:block;padding:12px 0;text-decoration:none;border-bottom:1px solid var(--line)}.mobile-nav a:last-child{border:0}
.button{display:inline-flex;align-items:center;justify-content:space-between;gap:30px;min-height:48px;padding:10px 22px;border:1px solid var(--ink);border-radius:5px;text-decoration:none;font:13px/1.5 ui-monospace,"Malgun Gothic",monospace;background:var(--card);color:var(--ink)}.button:hover{transform:translateY(-2px);box-shadow:0 3px 0 var(--line)}.button.primary{background:var(--yellow);color:#24352c;border-color:#706c47}.button.small{min-height:38px;padding:7px 14px;gap:22px;font-size:12px}.plain-link{display:inline-flex;gap:20px;align-items:center;text-decoration:none;font-size:13px;border-bottom:1px solid var(--line);padding:8px 0}.plain-link:hover{color:var(--teal);border-color:var(--teal)}.eyebrow{font:11px/1.5 ui-monospace,Consolas,"Malgun Gothic",monospace;letter-spacing:.09em;color:var(--muted);display:flex;align-items:center;gap:9px}.status-dot{width:7px;height:7px;background:var(--teal);display:inline-block;border-radius:50%}.intro{font-size:17px;line-height:1.85;color:var(--muted)}
.home-page{max-width:1280px;margin:0 auto;padding:0 24px}.hero{display:grid;grid-template-columns:1fr 1.06fr;align-items:center;gap:50px;padding:70px 0 54px;min-height:620px}.hero-copy{padding:16px 0}.hero h1{margin:24px 0}.hero-actions{display:flex;align-items:center;gap:24px;margin-top:30px}.hero-note{display:flex;gap:14px;align-items:center;font-size:11px;color:var(--muted);margin-top:45px}.hero-note>span{font:11px ui-monospace,monospace;border:1px solid var(--line);border-radius:3px;padding:5px 8px}.hero-art{position:relative;border:1px solid #b5bbac;border-radius:10px;background:#f3e9cc;overflow:hidden;color:#354d44;box-shadow:7px 7px 0 var(--soft)}.figure-label{font:9px/1.5 ui-monospace,Consolas,monospace;letter-spacing:.04em}.hero-art>.figure-label{display:flex;justify-content:space-between;padding:13px 17px;border-bottom:1px solid #c7c9b4;background:#f2ecdb}.hero-art>img{width:100%;height:auto;aspect-ratio:1.2;object-fit:cover}.hero-art figcaption{display:flex;justify-content:space-between;align-items:center;min-height:49px;padding:10px 17px;font:11px ui-monospace,"Malgun Gothic",monospace;border-top:1px solid #c7c9b4;background:#f2ecdb}.stamp{border:1px solid #5e7c69;border-radius:3px;padding:6px 10px;text-align:center;font-size:9px;line-height:1.2;transform:rotate(-5deg);background:#e6eadb;margin-top:-25px}.workshop-strip{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:21px 0;border-block:1px solid var(--line);font:11px ui-monospace,"Malgun Gothic",monospace;color:var(--muted)}.workshop-strip b{font-weight:400;color:var(--ink);margin-left:12px}.workshop-strip i{font-style:normal}.strip-end{font-size:9px;letter-spacing:.05em;margin-left:auto;padding-left:40px}
.curriculum{padding:85px 0 50px}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:34px}.section-heading .eyebrow{margin-bottom:16px}.section-heading>p{font-size:14px;color:var(--muted);line-height:1.9;max-width:390px}.course-meta{display:flex;align-items:center;gap:22px;border-top:1px solid var(--line);padding:15px 0 20px;font-size:12px}.course-meta>span:first-child{font-weight:600}.course-meta>span:last-child{color:var(--muted);font-size:11px}.lab-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px}.lab-card{background:var(--card);border:1px solid var(--line);border-radius:8px;overflow:hidden;text-decoration:none;display:flex;flex-direction:column;box-shadow:0 4px 6px var(--shadow)}.lab-card:hover{transform:translateY(-5px);box-shadow:0 8px 18px var(--shadow)}.lab-art{position:relative;border-bottom:1px solid var(--line);overflow:hidden;background:#f6eedc}.lab-art img{width:100%;aspect-ratio:1.5;height:auto;object-fit:cover;transition:transform .4s}.lab-card:hover .lab-art img{transform:scale(1.025)}.lab-index{position:absolute;top:14px;left:14px;color:#355148;border:1px solid #aeb5a7;border-radius:3px;background:#f6f0dfe8;padding:4px 8px;font:10px ui-monospace,monospace}.completion-mark:not(:empty){position:absolute;right:14px;top:14px;width:25px;height:25px;background:#32645e;color:#fff;display:grid;place-items:center;border-radius:50%;font-size:14px}.lab-card-body{padding:22px 23px;display:flex;flex:1;flex-direction:column}.lab-tags{display:flex;gap:9px;font:10px ui-monospace,"Malgun Gothic",monospace;color:var(--muted);margin-bottom:15px}.lab-tags span{border:1px solid var(--line);border-radius:3px;padding:3px 7px}.lab-card h3{font-size:22px;min-height:2.8em}.lab-card p{font-size:13px;color:var(--muted);line-height:1.8;margin-top:12px;margin-bottom:24px}.lab-card-link{border-top:1px solid var(--line);padding-top:16px;display:flex;justify-content:space-between;margin-top:auto;font-size:12px}
.learning-record{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:55px;background:var(--soft);border:1px solid var(--line);border-radius:6px;padding:30px 34px}.record-heading{display:flex;align-items:center;gap:25px}.record-symbol{font-size:46px;color:var(--teal);font-weight:300}.record-heading h2{font-size:21px;letter-spacing:-.03em;margin:8px 0}.record-heading p:last-child{font-size:12px;color:var(--muted)}.record-meter>p{font:12px ui-monospace,"Malgun Gothic",monospace}progress{display:block;width:100%;height:6px;margin:14px 0;accent-color:var(--teal);border:0;border-radius:0}progress::-webkit-progress-bar{background:var(--line)}progress::-webkit-progress-value{background:var(--teal)}.record-meta{display:flex;justify-content:space-between;gap:12px;font-size:10px;color:var(--muted)}.text-button{border:0;background:none;color:var(--muted);font-size:10px;text-decoration:underline;padding:0;text-underline-offset:3px;min-height:24px}.field-guide{display:grid;grid-template-columns:1fr 1fr;gap:75px;align-items:center;padding:95px 0}.guide-art{border:1px solid var(--line);border-radius:8px;overflow:hidden;background:#f5ebd3;transform:rotate(-1.3deg)}.guide-art img{width:100%;height:auto}.guide-art>.figure-label{display:block;border-top:1px solid #c7c9b4;padding:14px;color:#435950;background:#f2ecdb}.guide-copy>.eyebrow{margin-bottom:20px}.guide-copy>p:not(.eyebrow){font-size:15px;color:var(--muted);line-height:1.9;max-width:430px;margin:24px 0}.guide-copy .plain-link{margin-left:25px}.academy-footer{background:#264b44;color:#f0efdf;border-top:1px solid #577a66;padding:50px max(24px,calc((100% - 1232px)/2)) 24px}.footer-top{display:flex;align-items:center;justify-content:space-between;gap:30px;padding-bottom:50px}.footer-top .eyebrow{color:#bac5ac;margin-bottom:18px}.footer-top h2{font-size:40px}.footer-top .button{background:transparent;color:#f0efdf;border-color:#9fae94}.footer-bottom{border-top:1px solid #64806b;padding-top:25px;display:flex;align-items:center;gap:35px;font-size:11px}.footer-bottom .brand{font-size:15px}.footer-bottom .academy-mark,.footer-bottom .brand b{color:#e3d396}.footer-bottom nav{display:flex;gap:22px;margin-left:auto}.footer-bottom nav a{text-decoration:none}.copyright{font:9px ui-monospace,monospace;color:#bac5ac;white-space:nowrap}.skip{position:fixed;top:-80px;padding:12px;background:var(--card);z-index:30}.skip:focus{top:0}
.lab-page{max-width:1232px;margin:auto;padding:40px 24px 90px}.breadcrumb{display:flex;gap:12px;font:11px ui-monospace,"Malgun Gothic",monospace;color:var(--muted);padding-bottom:28px;border-bottom:1px solid var(--line);margin-bottom:36px}.lesson-layout{display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:70px}.lesson-layout article{min-width:0}.lesson-layout h1{font-size:clamp(2.3rem,4vw,3.5rem);margin:15px 0}.lesson-layout .intro{margin:20px 0 30px;font-size:17px}.lesson-layout article h2{font-size:24px;margin:40px 0 16px;letter-spacing:-.04em}.lesson-layout article p{margin:15px 0;line-height:1.9;font-size:15px}.lesson-layout article>.eyebrow{font-size:11px}.lesson-layout aside{border-left:1px solid var(--line);padding-left:25px;font-size:13px;position:sticky;top:128px;align-self:start}.lesson-nav{display:flex;gap:12px;padding:15px 0;border-bottom:1px solid var(--line);text-decoration:none;align-items:baseline;font-size:12px}.lesson-nav span{font:10px ui-monospace,monospace;color:var(--muted)}.lesson-nav[aria-current]{color:var(--teal);font-weight:700}.lesson-layout aside>a:last-child{display:inline-block;margin-top:12px}.code-toolbar{display:flex;gap:15px;align-items:center;padding:11px 15px;border:1px solid var(--line);border-bottom:0;background:var(--soft);font:11px ui-monospace,"Malgun Gothic",monospace;border-radius:5px 5px 0 0}.code-toolbar span{margin-right:auto}.code-toolbar button{border:0;background:transparent;padding:4px;font:inherit}pre{border:1px solid var(--line);background:var(--card);margin:0;overflow:auto;padding:22px;font:13px/1.8 ui-monospace,SFMono-Regular,Consolas,monospace;border-radius:0 0 5px 5px}dl{display:grid;grid-template-columns:1fr 1fr;font-size:13px;border-top:1px solid var(--line);margin:24px 0}dt,dd{padding:12px 0;border-bottom:1px solid var(--line);margin:0}dt{color:var(--muted)}dd{font-family:ui-monospace,monospace}.expected{background:var(--soft);border:1px solid var(--line);border-left:3px solid var(--teal);padding:20px 25px;margin-top:30px;border-radius:3px}.expected h2{margin:0!important;font-size:20px!important}.expected p{margin-bottom:0!important}details{padding:18px 0;border-block:1px solid var(--line);margin:20px 0}summary{font-size:14px;font-weight:600}.muted{color:var(--muted);font-size:12px!important}.lesson-actions{display:flex;justify-content:space-between;gap:20px;align-items:center;margin-top:35px;padding-top:25px;border-top:1px solid var(--line)}.lesson-actions label{display:flex;align-items:center;gap:12px;font-size:13px;cursor:pointer}.lesson-actions input{width:20px;height:20px;accent-color:var(--teal)}hr{border:0;border-top:1px solid var(--line);margin:28px 0}
@media(min-width:1000px){.hero-copy,.hero-art{animation:arrive .6s ease-out both}.hero-art{animation-delay:.08s}}@keyframes arrive{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}
@media(max-width:1400px){.academy-header{margin-inline:32px}.home-page{padding-inline:44px}}
@media(max-width:1050px){.academy-header{gap:18px;margin-inline:24px}.desktop-nav{gap:18px}.header-start{display:none}.hero{gap:25px;padding-top:50px;min-height:560px}h1{font-size:4.6vw}.hero-note{margin-top:26px}.figure-label{font-size:8px}.hero-art>.figure-label>span:last-child{display:none}.strip-end{display:none}.lab-cards{gap:18px}.lab-card-body{padding:18px}.lab-card h3{font-size:20px}.field-guide{gap:40px}.learning-record{gap:26px;padding:24px}.footer-bottom{flex-wrap:wrap}.copyright{width:100%;text-align:right}.guide-copy .plain-link{margin:15px 0 0;display:flex;width:max-content}}
@media(max-width:760px){html{scroll-padding-top:98px}.academy-header{top:12px;margin:12px 16px 0;padding:11px 14px;min-height:60px;gap:12px}.brand{font-size:16px;gap:7px}.brand b{margin-left:2px}.academy-mark{width:25px;height:25px}.desktop-nav{display:none}.header-actions{gap:10px}.theme-button{padding:7px}.language{padding-left:11px}.menu-button{display:flex;flex-direction:column;gap:5px;background:none;border:0;padding:9px}.menu-button span{width:17px;height:1px;background:currentColor}.home-page{padding:0 22px}.hero{grid-template-columns:1fr;padding:44px 0 36px;gap:32px;min-height:0}.hero-copy{padding:0}.hero h1{font-size:clamp(38px,8.8vw,66px);margin:21px 0}.hero .eyebrow{font-size:10px}.intro{font-size:15px}.hero-actions{margin-top:24px;gap:24px}.hero-note{margin-top:27px;font-size:10px}.hero-art{max-width:600px;width:100%;margin:auto;box-shadow:4px 4px 0 var(--soft)}.hero-art>img{aspect-ratio:1.32;object-fit:cover}.workshop-strip{gap:10px;font-size:9px;flex-wrap:wrap;padding:18px 0}.workshop-strip b{margin-left:5px}.workshop-strip i{font-size:11px}.curriculum{padding:52px 0 30px}.section-heading{display:block;margin-bottom:24px}.section-heading h2{font-size:34px}.section-heading>p{margin-top:18px;font-size:13px}.course-meta{gap:12px;justify-content:space-between;align-items:start}.course-meta>span:last-child{font-size:10px}.lab-cards{grid-template-columns:1fr;gap:22px}.lab-card h3{min-height:0;font-size:23px}.lab-art img{aspect-ratio:1.7;object-fit:cover}.lab-card-body{padding:22px}.lab-card p{margin-top:10px;margin-bottom:20px}.learning-record{grid-template-columns:1fr;padding:23px;gap:23px}.record-heading{gap:16px}.record-heading h2{font-size:20px}.record-symbol{font-size:35px}.record-meta{flex-wrap:wrap}.field-guide{grid-template-columns:1fr;padding:60px 0;gap:36px}.guide-copy h2{font-size:34px}.guide-copy>p:not(.eyebrow){font-size:14px}.guide-copy .plain-link{display:inline-flex;margin:0 0 0 16px}.academy-footer{padding:35px 23px 22px}.footer-top{display:block;padding-bottom:35px}.footer-top h2{font-size:34px}.footer-top .button{margin-top:28px}.footer-bottom{gap:22px}.footer-bottom nav{width:100%;margin:0;gap:20px}.copyright{text-align:left}.lab-page{padding:30px 22px 55px}.lesson-layout{grid-template-columns:1fr;gap:0}.lesson-layout aside{display:none}.breadcrumb{font-size:10px;padding-bottom:22px;margin-bottom:28px}.lesson-layout h1{font-size:34px}.lesson-layout article p{font-size:14px}.code-toolbar{gap:10px;padding:10px;font-size:10px}pre{font-size:12px;padding:16px}dl{grid-template-columns:1.2fr 1fr;font-size:11px}.lesson-actions{flex-direction:column;align-items:stretch}.button{font-size:12px;min-height:46px;padding:10px 18px}.lesson-actions label{min-height:40px}}
@media(max-width:380px){.brand{font-size:14px}.academy-mark{width:22px}.header-actions{gap:5px}.academy-header{margin-inline:12px}.home-page{padding-inline:18px}.hero-actions{gap:18px}.plain-link{font-size:12px}.workshop-strip{display:grid;grid-template-columns:1fr 1fr 1fr}.workshop-strip i{display:none}.workshop-strip>span{display:flex;flex-direction:column;gap:5px}.workshop-strip b{margin:0}.guide-copy .plain-link{display:flex;margin:15px 0 0;width:max-content}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}