/* Detox English 웹 매뉴얼 — Design Md Files/Nike-Lecture-Kit-Grunge/DESIGN-nike-freefont.md 의 토큰을 그대로 쓴다 */
@font-face{font-family:Pretendard;src:url(fonts/Pretendard-Regular.woff2) format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:Pretendard;src:url(fonts/Pretendard-SemiBold.woff2) format("woff2");font-weight:600;font-display:swap}
@font-face{font-family:SCore;src:url(fonts/SCDreamBlack.woff2) format("woff2");font-weight:900;font-display:swap}

:root{
  --ink:#111111; --canvas:#ffffff; --cloud:#f5f5f5; --charcoal:#39393b; --mute:#707072;
  --stone:#9e9ea0; --line:#cacacb; --soft:#e5e5e5; --sale:#d30005; --success:#007d48;
  --pill:30px; --gutter:40px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--canvas);color:var(--ink);font:17px/1.7 Pretendard,"Apple SD Gothic Neo","Malgun Gothic",sans-serif;word-break:keep-all;overflow-wrap:anywhere}
a{color:inherit}
button{font:inherit;cursor:pointer;touch-action:manipulation}
:focus-visible{outline:3px solid var(--ink);outline-offset:3px}
.skip{position:fixed;top:-80px;left:16px;background:var(--canvas);padding:10px 16px;z-index:20}
.skip:focus{top:12px}

/* 머리 */
.top{position:sticky;top:0;z-index:10;background:var(--canvas);border-bottom:1px solid var(--soft);display:flex;align-items:center;justify-content:space-between;gap:20px;padding:0 var(--gutter);min-height:72px}
.brand{display:flex;flex-direction:column;text-decoration:none;line-height:1.25}
.brandMark{font:900 15px/1.2 SCore,Pretendard,sans-serif;letter-spacing:.04em}
.brandSub{font-size:13px;color:var(--mute)}
.mainNav{display:flex;gap:6px;flex-wrap:wrap}
.mainNav a{text-decoration:none;font-weight:600;font-size:15px;padding:9px 18px;border-radius:var(--pill)}
.mainNav a:hover{background:var(--cloud)}
.mainNav a[aria-current=page]{background:var(--ink);color:var(--canvas)}
.menuBtn{display:none;border:1px solid var(--line);background:var(--canvas);border-radius:var(--pill);padding:8px 18px;min-height:44px}

/* 틀 */
.shell{max-width:1240px;margin:0 auto;padding:0 var(--gutter)}
.shell.withToc{display:grid;grid-template-columns:220px minmax(0,1fr);gap:56px}
.toc{position:sticky;top:96px;align-self:start;padding:40px 0;max-height:calc(100vh - 96px);overflow:auto}
.tocHead{font-size:13px;color:var(--mute);margin:0 0 10px}
.toc a{display:block;text-decoration:none;font-size:14px;line-height:1.5;padding:8px 12px;border-left:2px solid var(--soft);color:var(--charcoal)}
.toc a:hover{border-left-color:var(--line)}
.toc a.active{border-left-color:var(--ink);color:var(--ink);font-weight:600;background:var(--cloud)}
main{min-width:0;padding:40px 0 80px;max-width:820px}

/* 글 */
h1{font:900 clamp(32px,5vw,56px)/1.15 SCore,Pretendard,sans-serif;letter-spacing:-.03em;margin:8px 0 24px}
h2{font-size:28px;line-height:1.35;letter-spacing:-.015em;margin:64px 0 16px;padding-top:24px;border-top:1px solid var(--soft);scroll-margin-top:90px}
h3{font-size:20px;line-height:1.45;margin:36px 0 10px}
p{margin:0 0 16px}
.lead{font-size:20px;color:var(--charcoal)}
strong{font-weight:600}
code{font-family:Consolas,"SFMono-Regular",Menlo,monospace;font-size:.88em;background:var(--cloud);padding:2px 6px;border-radius:6px}
ul,ol{padding-left:24px;margin:0 0 18px}
li{margin:6px 0}
hr{border:0;border-top:1px solid var(--soft);margin:48px 0}
figure{margin:28px 0}
figure img{display:block;max-width:100%;height:auto;background:var(--cloud);border:1px solid var(--soft)}
figcaption{font-size:14px;color:var(--mute);margin-top:8px}

/* 표 */
.tableWrap{overflow-x:auto;margin:20px 0 28px}
table{border-collapse:collapse;width:100%;font-size:16px}
th,td{text-align:left;vertical-align:top;padding:12px 14px;border-bottom:1px solid var(--line)}
th:first-child,td:first-child{white-space:nowrap}
th{background:var(--cloud);font-weight:600}

/* 콜아웃 */
.callout{margin:24px 0;padding:18px 22px;background:var(--cloud);border-left:4px solid var(--ink)}
.callout p:last-child{margin-bottom:0}
.callout-warn{border-left-color:var(--sale)}
.callout-tip{border-left-color:var(--success)}
.callout-aside,.callout-note{border-left-color:var(--stone)}

/* 복사 상자 */
.box{margin:20px 0 28px;border:1px solid var(--soft);background:var(--cloud)}
.boxHead{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 14px 10px 18px;border-bottom:1px solid var(--soft);background:var(--canvas)}
.boxTitle{font-size:14px;font-weight:600;color:var(--charcoal)}
.copyBtn{background:var(--ink);color:var(--canvas);border:0;border-radius:var(--pill);padding:8px 20px;min-height:40px;font-weight:600;font-size:14px}
.copyBtn.done{background:var(--success)}
.box pre{margin:0;padding:18px;white-space:pre-wrap;overflow-wrap:anywhere;font:15px/1.7 Consolas,"SFMono-Regular",Menlo,Pretendard,monospace}
.box-text pre{font-family:Pretendard,sans-serif}
.copyNote{margin:0;padding:0 18px;font-size:13px;color:var(--mute);min-height:0}
.copyNote:not(:empty){padding:0 18px 12px}

/* 체크 목록 */
.checklist{list-style:none;padding-left:0}
.checklist li{margin:8px 0}
.check{display:flex;gap:12px;align-items:flex-start;cursor:pointer;padding:10px 14px;border:1px solid var(--soft);border-radius:14px}
.check input{width:22px;height:22px;margin:2px 0 0;accent-color:var(--ink);flex:none}
.check input:checked + span{color:var(--mute);text-decoration:line-through}

/* 운영체제 전환 */
.osSwitch{display:flex;align-items:center;gap:8px;margin:0 0 8px;font-size:14px;color:var(--mute)}
.osSwitch button{border:1px solid var(--line);background:var(--canvas);border-radius:var(--pill);padding:6px 16px;min-height:38px;font-weight:600}
.osSwitch button[aria-pressed=true]{background:var(--ink);color:var(--canvas);border-color:var(--ink)}
.os{border-left:3px solid var(--soft);padding-left:18px;margin:16px 0}
.osLabel{font-size:13px;font-weight:600;color:var(--mute);margin-bottom:6px}
body[data-os=windows] .os-mac,body[data-os=mac] .os-windows{display:none}

/* 첫 화면 */
.page-index h1{max-width:760px}
.cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin:24px 0}
.card{display:block;text-decoration:none;padding:22px;border:1px solid var(--soft);border-radius:24px;background:var(--canvas)}
.card:hover{border-color:var(--ink)}
.card strong{display:block;font-size:20px;margin-bottom:6px}
.card span{color:var(--mute);font-size:15px}
.pillLink{display:inline-block;background:var(--ink);color:var(--canvas);text-decoration:none;border-radius:var(--pill);padding:12px 26px;font-weight:600;margin:8px 0 16px}

/* 꼬리 */
.foot{margin-top:72px;padding-top:24px;border-top:1px solid var(--soft);font-size:14px;color:var(--mute)}
.fontCredit{font-size:12px}

@media (max-width:960px){
  :root{--gutter:24px}
  .shell.withToc{grid-template-columns:1fr;gap:0}
  .toc{position:static;max-height:none;padding:24px 0 0;display:flex;flex-wrap:wrap;gap:6px}
  .tocHead{width:100%}
  .toc a{border:1px solid var(--soft);border-radius:var(--pill);padding:6px 14px;font-size:13px}
  .toc a.active{border-color:var(--ink)}
}
@media (max-width:640px){
  :root{--gutter:16px}
  body{font-size:16px}
  .top{min-height:64px}
  .menuBtn{display:inline-flex;align-items:center}
  .mainNav{display:none;position:absolute;top:64px;left:0;right:0;background:var(--canvas);border-bottom:1px solid var(--soft);padding:12px 16px;flex-direction:column}
  .mainNav.open{display:flex}
  h2{font-size:24px;margin-top:48px}
  .cards{grid-template-columns:1fr}
  .box pre{font-size:14px;padding:14px}
  table{font-size:14px}
  th,td{padding:10px}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
@media print{
  .top,.toc,.copyBtn,.osSwitch,.menuBtn,.skip{display:none!important}
  .shell,.shell.withToc{display:block;padding:0}
  main{padding:0;max-width:none}
  .os{display:block!important}
  h2{break-after:avoid}
  .box,.callout,table{break-inside:avoid}
}