:root{--ink:#0c2533;--muted:#38515e;--blue:#00679e;--sky:#5badce;--paper:#f5f4ee;--white:#fffef9;--mist:#e8f2f4;--line:#ccd7d9;--gutter:clamp(22px,4vw,64px)}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:110px;background:var(--paper)}
body{margin:0;font-family:"Pretendard Variable",Pretendard,"Noto Sans KR","Malgun Gothic",sans-serif;color:var(--ink);line-height:1.8;word-break:keep-all;overflow-wrap:break-word}
a{color:inherit;text-underline-offset:5px}
img{display:block;max-width:100%;height:auto}
[hidden]{display:none!important}
:focus-visible{outline:3px solid var(--blue);outline-offset:5px}
::selection{color:white;background:var(--blue)}
.top-marker{position:absolute;top:0;left:0;width:1px;height:1px;pointer-events:none}
.skip-link{position:fixed;z-index:110;left:20px;top:12px;padding:10px 18px;background:var(--ink);color:white;transform:translateY(-180%)}
.skip-link:focus{transform:none}
.site-header{position:fixed;z-index:90;top:0;left:0;right:0;padding:14px var(--gutter);pointer-events:none}
.nav-shell{max-width:1440px;margin:auto;padding:10px 12px 10px 18px;display:flex;align-items:center;gap:24px;border:1px solid var(--line);border-radius:40px;background:var(--paper);pointer-events:auto}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-size:12px;line-height:1.2;font-weight:800;letter-spacing:.12em}
.brand img{width:48px;flex-shrink:0}
.brand small{display:block;font-size:8px;letter-spacing:.15em;margin-top:4px}
.nav-links{display:flex;gap:26px;margin-left:auto;font-size:12px;font-weight:700}
.nav-links a{text-decoration:none}
.back-link{padding:9px 17px;color:white;background:var(--ink);border-radius:30px;text-decoration:none;font-size:11px;font-weight:700}
.page-shell{max-width:1240px;margin:auto;padding:0 var(--gutter)}
.page-hero{padding-top:150px;padding-bottom:60px}
.eyebrow{font-size:11px;font-weight:750;letter-spacing:.14em;color:var(--blue);text-transform:uppercase;margin:0 0 23px}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(240px,.6fr);gap:clamp(34px,5vw,80px);align-items:end}
h1{margin:0 0 28px;font-size:clamp(39px,4.5vw,65px);line-height:1.25;letter-spacing:-.06em;font-weight:750}
.hero-deck{margin:0;color:var(--muted);font-size:18px;line-height:1.95;max-width:700px}
.principle-note{margin:0;background:var(--ink);color:var(--white);padding:30px;border-radius:18px}
.principle-note img{width:120px;margin:0 0 32px}
.principle-note blockquote{margin:0;font-family:Batang,"Noto Serif KR",Georgia,serif;font-size:23px;line-height:1.75;letter-spacing:-.035em}
.principle-note p{margin:22px 0 0;color:#b8c8cf;font-size:12px}
.process-nav{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-bottom:65px}
.process-nav a{display:flex;align-items:center;gap:12px;padding:20px 16px;font-size:13px;text-decoration:none;border-right:1px solid var(--line)}
.process-nav a:last-child{border-right:0}
.process-nav span{font-size:10px;color:var(--blue)}
.process-nav a[aria-current="page"]{background:var(--mist);font-weight:750}
.process-nav a:hover{background:white}
.article-grid{display:grid;grid-template-columns:170px minmax(0,1fr);gap:clamp(35px,5vw,74px)}
.chapter-nav{position:sticky;top:110px;align-self:start;font-size:12px}
.chapter-nav p{font-size:10px;font-weight:750;letter-spacing:.12em;color:var(--blue);margin:0 0 15px}
.chapter-nav ol{list-style:none;padding:0;margin:0}
.chapter-nav a{display:block;padding:11px 0;border-bottom:1px solid var(--line);text-decoration:none;color:var(--muted)}
.guide-content{min-width:0}
.guide-section{padding-bottom:48px;margin-bottom:48px;border-bottom:1px solid var(--line)}
.guide-section:last-child{margin-bottom:0}
.guide-section h2{font-family:Batang,"Noto Serif KR",Georgia,serif;font-weight:400;font-size:clamp(27px,3vw,38px);line-height:1.5;letter-spacing:-.04em;margin:0 0 25px}
.guide-section h3{font-size:19px;line-height:1.6;margin:28px 0 12px}
.guide-section p{font-size:17px;color:var(--muted);line-height:2;margin:0 0 22px}
.guide-section strong{color:var(--ink);font-weight:750}
.guide-section p:last-child{margin-bottom:0}
.question-list{margin:27px 0;padding-left:23px;color:var(--muted);font-size:16px;line-height:1.95}
.question-list li{padding:6px 0 6px 3px}
.example{margin:30px 0;padding:27px;background:white;border-left:3px solid var(--sky)}
.example .example-label{margin:0 0 17px;font-size:10px;letter-spacing:.08em;color:var(--blue);font-weight:750;line-height:1.8}
.example blockquote{font-family:Batang,"Noto Serif KR",Georgia,serif;font-size:24px;line-height:1.75;margin:0 0 21px;color:var(--blue)}
.example p{font-size:15px}
.deliverables{margin:28px 0;display:grid;grid-template-columns:1fr 1fr;gap:16px}
.deliverables>div{padding:21px;background:var(--mist);min-width:0}
.deliverables dt{font-weight:750;font-size:15px;margin-bottom:9px}
.deliverables dd{margin:0;color:var(--muted);font-size:14px;line-height:1.9}
.scope-note{padding:22px 24px;margin:30px 0;background:var(--mist);border-radius:8px}
.scope-note strong{display:block;font-size:12px;margin-bottom:9px;color:var(--blue)}
.scope-note p{font-size:14px;line-height:1.9;margin:0}
.reading-link{display:block;padding:23px 0;margin-top:26px;border-top:1px solid var(--line);color:var(--blue);font-weight:700;text-decoration:none;font-size:15px;line-height:1.9}
.reading-link small{display:block;margin-bottom:7px;font-size:10px;letter-spacing:.08em;color:var(--muted);font-weight:400}
.next-step{padding:45px 0 65px;margin-top:18px;display:flex;justify-content:space-between;align-items:center;gap:25px}
.next-step p{margin:0;color:var(--muted);font-size:15px;max-width:580px}
.next-step strong{display:block;font-size:19px;margin-bottom:8px;color:var(--ink)}
.action-link{flex-shrink:0;display:inline-flex;align-items:center;gap:20px;min-height:46px;padding:11px 20px;border-radius:30px;background:var(--blue);color:white;text-decoration:none;font-size:13px;font-weight:700}
.action-link:hover{background:var(--ink)}
.article-footer{padding:34px var(--gutter);background:var(--ink);color:white}
.footer-inner{max-width:1440px;margin:auto;display:flex;justify-content:space-between;align-items:center;gap:25px}
.footer-logo{width:120px}
.footer-meta{font-size:10px;line-height:1.9;letter-spacing:.08em;text-align:right;color:#c5d6de}
.floating-top{position:fixed;top:50%;right:14px;transform:translateY(-50%);z-index:80;width:44px;height:44px;display:grid;place-items:center;border:1px solid white;border-radius:50%;background:var(--ink);color:white;text-decoration:none;font-size:22px}
@media(max-width:950px){.hero-grid{grid-template-columns:1fr}.principle-note{display:grid;grid-template-columns:120px 1fr;gap:15px 28px;align-items:center}.principle-note img{margin:0;grid-row:span 2}.principle-note p{margin:0}.article-grid{grid-template-columns:1fr;gap:36px}.chapter-nav{position:static}.chapter-nav ol{display:grid;grid-template-columns:1fr 1fr;gap:0 24px}.next-step{align-items:flex-start;flex-direction:column}}
@media(max-width:680px){.nav-links,.brand small{display:none}.nav-shell{gap:10px;padding-left:12px}.brand{font-size:11px;gap:8px}.brand img{width:42px}.back-link{margin-left:auto;padding:9px 12px;font-size:10px}.page-hero{padding-top:125px;padding-bottom:38px}.hero-deck{font-size:16px}.principle-note{padding:24px;grid-template-columns:1fr}.principle-note img{width:85px;grid-row:auto;margin-bottom:7px}.principle-note blockquote{font-size:22px}.process-nav{grid-template-columns:1fr;margin-bottom:36px}.process-nav a{border-right:0;border-bottom:1px solid var(--line);padding:14px}.process-nav a:last-child{border-bottom:0}.chapter-nav ol{grid-template-columns:1fr}.guide-section{padding-bottom:35px;margin-bottom:35px}.guide-section p{font-size:16px}.question-list{font-size:15px}.example{padding:23px 19px}.example p{font-size:15px}.deliverables{grid-template-columns:1fr}.scope-note{padding:20px}.scope-note p{font-size:14px}.footer-inner{align-items:flex-start;flex-direction:column}.footer-meta{text-align:left}.floating-top{width:38px;height:38px;right:8px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
@media print{html,body{background:white;color:black;scroll-behavior:auto}.site-header,.skip-link,.process-nav,.chapter-nav,.floating-top,.next-step,.article-footer{display:none}.page-shell{max-width:none;padding:0}.page-hero{padding:0 0 30px}.hero-grid,.article-grid{display:block}h1{font-size:30pt}.hero-deck{font-size:12pt}.principle-note{display:none}.guide-section{padding-bottom:24px;margin-bottom:24px}.guide-section h2{font-size:21pt;break-after:avoid}.guide-section p{font-size:11pt;orphans:3;widows:3}.example,.scope-note,.deliverables>div{break-inside:avoid}.deliverables{grid-template-columns:1fr 1fr}.reading-link{font-size:11pt}}