/* 디자인밝을창 블로그 — 메인 사이트(v1 Motion)의 색·글꼴·여백을 따른다 */
@font-face{font-family:"Pretendard Variable";src:url("../font/PretendardVariable.woff2") format("woff2");font-weight:45 920;font-display:swap}
:root{
  --bg:#f5f5f7; --ink:#1d1d1f; --ink2:#6e6e73; --ink3:#86868b; --line:#d2d2d7; --dark:#1d1d1f;
  --accent:#0071e3; --gut:clamp(20px,5.8vw,64px); --max:1120px; --read:680px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"Pretendard Variable",Pretendard,-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Malgun Gothic",sans-serif;font-size:17px;line-height:1.75;letter-spacing:-.01em;-webkit-font-smoothing:antialiased;word-break:keep-all}
a{color:inherit}
img{max-width:100%;display:block}

/* 머리글 */
.site-head{position:sticky;top:0;z-index:10;background:rgba(255,255,255,.92);backdrop-filter:blur(14px);border-bottom:1px solid transparent}
.site-head.scrolled{border-color:var(--line)}
.site-head .in{max-width:var(--max);margin:0 auto;padding:18px var(--gut);display:flex;align-items:center;gap:28px}
.wordmark{font-weight:650;font-size:16px;text-decoration:none;letter-spacing:-.02em}
.nav{margin-left:auto;display:flex;gap:26px;font-size:14.5px}
.nav a{text-decoration:none;color:var(--ink2)}
.nav a:hover,.nav a[aria-current]{color:var(--ink)}
.nav a[aria-current]{font-weight:600}

/* 목록 */
.hero{max-width:var(--max);margin:0 auto;padding:clamp(56px,10vw,120px) var(--gut) clamp(36px,6vw,64px)}
.eyebrow{font-size:13px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--ink3)}
.hero h1{font-size:clamp(44px,7.6vw,108px);font-weight:300;letter-spacing:-.035em;line-height:1.02;margin:14px 0 0}
.hero h1 .dot{display:inline-block;width:.16em;height:.16em;border-radius:50%;background:var(--accent);margin-left:.04em}
.hero p{max-width:560px;color:var(--ink2);margin:22px 0 0;font-size:18px}
.filters{max-width:var(--max);margin:0 auto;padding:0 var(--gut) 26px;display:flex;gap:8px;flex-wrap:wrap}
.chip{border:1px solid var(--line);background:transparent;border-radius:99px;padding:6px 14px;font:inherit;font-size:14px;color:var(--ink2);cursor:pointer}
.chip.on{background:var(--ink);border-color:var(--ink);color:#fff}
.posts{max-width:var(--max);margin:0 auto;padding:0 var(--gut) 100px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:48px 32px}
.post{text-decoration:none;display:flex;flex-direction:column}
.post .thumb{aspect-ratio:4/3;border-radius:6px;overflow:hidden;background:#fff;position:relative}
.post .thumb svg,.post .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s cubic-bezier(.2,.8,.2,1)}
.post:hover .thumb svg,.post:hover .thumb img{transform:scale(1.03)}
.post .meta{margin-top:16px;font-size:13px;color:var(--ink3);display:flex;gap:10px}
.post h2{font-size:22px;font-weight:650;letter-spacing:-.02em;line-height:1.38;margin:6px 0 0}
.post p{font-size:15.5px;color:var(--ink2);margin:8px 0 0;line-height:1.65}
.post.featured{grid-column:1/-1;display:grid;grid-template-columns:1.25fr 1fr;gap:40px;align-items:center}
.post.featured h2{font-size:clamp(26px,3vw,36px)}
.post.featured .thumb{aspect-ratio:16/10}

/* 글 */
.article{max-width:var(--read);margin:0 auto;padding:clamp(48px,8vw,96px) var(--gut) 40px}
.crumbs{font-size:13.5px;color:var(--ink3)}
.crumbs a{text-decoration:none}
.article h1{font-size:clamp(32px,4.6vw,52px);font-weight:650;letter-spacing:-.03em;line-height:1.22;margin:18px 0 0}
.article .lede{font-size:20px;color:var(--ink2);margin:20px 0 0;line-height:1.65}
.byline{display:flex;gap:12px;align-items:center;margin:30px 0 0;padding:18px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);font-size:14px;color:var(--ink2)}
.byline b{color:var(--ink);font-weight:600}
.cover{max-width:960px;margin:0 auto;padding:0 var(--gut)}
.cover figure{margin:0}
.cover figure svg{display:block;width:100%;height:auto;border-radius:8px}
.cover figcaption,.body figcaption{font-size:13.5px;color:var(--ink3);margin-top:10px}
.body{max-width:var(--read);margin:0 auto;padding:44px var(--gut) 0}
.body h2{font-size:27px;font-weight:650;letter-spacing:-.025em;line-height:1.35;margin:60px 0 0}
.body h2 .n{color:var(--accent);margin-right:10px;font-weight:500}
.body p{margin:18px 0 0}
.body ul{margin:18px 0 0;padding-left:20px}
.body li{margin-top:8px}
.body figure{margin:36px 0 0}
.body .note{margin:36px 0 0;padding:22px 24px;border-radius:8px;background:#fff;font-size:15.5px;color:var(--ink2)}
.body .note b{color:var(--ink)}
.body strong{font-weight:650}
.cta{max-width:var(--read);margin:80px auto 0;padding:0 var(--gut)}
.cta .box{background:var(--dark);color:#fff;border-radius:10px;padding:40px clamp(24px,5vw,48px)}
.cta h3{font-size:26px;font-weight:600;letter-spacing:-.02em;margin:0;line-height:1.4}
.cta p{color:rgba(255,255,255,.72);margin:12px 0 0;font-size:16px}
.cta .actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.cta a.btn{display:inline-block;background:#fff;color:var(--ink);text-decoration:none;padding:12px 24px;border-radius:99px;font-weight:600;font-size:15px}
.cta a.btn.ghost{background:transparent;color:#fff;box-shadow:inset 0 0 0 1px rgba(255,255,255,.42)}
.cta a.btn:focus-visible,.chip:focus-visible,.post:focus-visible,.nav a:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.related{max-width:var(--max);margin:100px auto 0;padding:0 var(--gut) 100px;border-top:1px solid var(--line)}
.related h3{font-size:13px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--ink3);margin:28px 0 24px}
.related .posts{padding:0;grid-template-columns:repeat(3,minmax(0,1fr))}
.site-foot{border-top:1px solid var(--line)}
.site-foot .in{max-width:var(--max);margin:0 auto;padding:36px var(--gut) 56px;display:flex;gap:24px;flex-wrap:wrap;font-size:14px;color:var(--ink2)}
.site-foot a{text-decoration:none}
.site-foot .r{margin-left:auto}

@media (max-width:900px){
  .posts,.related .posts{grid-template-columns:1fr 1fr}
  .post.featured{grid-template-columns:1fr;gap:18px}
}
@media (max-width:600px){
  body{font-size:16.5px}
  .nav{gap:18px;font-size:14px}
  .posts,.related .posts{grid-template-columns:1fr}
  .article .lede{font-size:18px}
  .body h2{font-size:23px}
}

/* 그림·도표 */
.cover figure img,.body figure img{display:block;width:100%;height:auto;border-radius:8px;background:#fff}
.body figure svg{display:block;width:100%;height:auto;border-radius:8px}
.hero-art{max-width:var(--max);margin:0 auto;padding:0 var(--gut) 40px}
.hero-art img{width:100%;height:auto;border-radius:10px;background:#fff}
.post .thumb img{background:#fff}
.body ol{margin:18px 0 0;padding-left:22px}
.body a{color:var(--accent);text-underline-offset:3px}
.post[hidden]{display:none}
@media (prefers-reduced-motion:reduce){.post .thumb img{transition:none}.post:hover .thumb img{transform:none}}

/* ---- 목록: 사이드 카테고리 + 카드 격자 (패스트파이브의 여백·행간 참고) ---- */
.skip{position:absolute;left:-999px;top:8px;background:#141414;color:#fff;padding:8px 14px;border-radius:8px;z-index:30}
.skip:focus{left:8px}
.head-cta{margin-left:6px;background:var(--ink);color:#fff;text-decoration:none;font-size:13.5px;font-weight:600;padding:8px 16px;border-radius:99px}
.site-head .nav{margin-left:auto}
.listing{max-width:var(--max);margin:0 auto;padding:clamp(28px,4vw,48px) var(--gut) 120px;display:grid;grid-template-columns:220px minmax(0,1fr);gap:clamp(32px,5vw,64px);align-items:start}
.side{position:sticky;top:84px}
.side h2{font-size:12.5px;font-weight:600;letter-spacing:.12em;color:var(--ink3);margin:0 0 14px}
.side nav a{display:flex;justify-content:space-between;align-items:center;padding:13px 14px;border-radius:12px;text-decoration:none;color:var(--ink2);font-size:15.5px}
.side nav a i{font-style:normal;font-size:13px;color:var(--ink3)}
.side nav a:hover{background:#ececf0}
.side nav a[aria-current]{background:#e8e8ed;color:var(--ink);font-weight:650}
.search{margin-top:24px}
.search input{width:100%;border:0;border-radius:99px;background:#fff;box-shadow:inset 0 0 0 1px #d2d2d7;padding:13px 18px;font:inherit;font-size:14.5px;color:var(--ink)}
.search input:focus-visible{outline:2px solid var(--accent)}
.banner{display:grid;grid-template-columns:1.1fr 1fr;gap:clamp(20px,4vw,48px);align-items:center;background:#fff;border-radius:24px;padding:clamp(28px,4vw,52px)}
.banner .eyebrow{margin:0}
.banner h1{font-size:clamp(30px,3.6vw,44px);font-weight:650;letter-spacing:-.03em;line-height:1.25;margin:12px 0 0}
.banner p:not(.eyebrow){color:var(--ink2);margin:16px 0 0;font-size:16px;line-height:1.75}
.banner img{width:100%;height:auto;border-radius:14px;background:#fff}
.count{margin:44px 0 22px;font-size:14px;color:var(--ink3)}
.count b{color:var(--ink);font-weight:600}
.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:56px 32px}
.card{display:block;text-decoration:none}
.card[hidden]{display:none}
.card .thumb{aspect-ratio:16/10;border-radius:16px;overflow:hidden;background:#fff}
.card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s cubic-bezier(.2,.8,.2,1)}
.card:hover .thumb img{transform:scale(1.03)}
.pills{display:flex;flex-wrap:wrap;gap:6px 10px;margin:20px 0 0;font-size:13px}
.pills .cat{color:var(--accent);font-weight:650}
.pills .topic{color:var(--ink3)}
.pills .topic::before{content:"|";margin-right:10px;color:var(--line)}
.card h2{font-size:21px;font-weight:650;letter-spacing:-.02em;line-height:1.5;margin:8px 0 0}
.card p{font-size:15px;line-height:1.7;color:var(--ink2);margin:10px 0 0}
.card .meta{display:flex;gap:12px;margin-top:14px;font-size:13px;color:var(--ink3)}
.card .meta span+span::before{content:"|";margin-right:12px;color:var(--line)}
.none{margin:60px 0;color:var(--ink3);text-align:center}
.grid.small{grid-template-columns:repeat(2,minmax(0,1fr))}
.related .grid.small{padding:0}
.related .card h2{font-size:18px}
.related .card p{display:none}
.article .pills{margin:14px 0 0}
.float{position:fixed;right:18px;bottom:22px;display:flex;flex-direction:column;gap:8px;z-index:15}
.float a{width:56px;height:56px;border-radius:18px;background:var(--ink);color:#fff;text-decoration:none;font-size:11px;line-height:1.25;display:flex;flex-direction:column;align-items:center;justify-content:center;box-shadow:0 8px 24px rgba(0,0,0,.18)}
.float a b{font-size:13px}
.float a:last-child{background:#fff;color:var(--ink);box-shadow:0 8px 24px rgba(0,0,0,.12),inset 0 0 0 1px var(--line)}
.site-foot .in{align-items:center}
@media (max-width:900px){
  .listing{grid-template-columns:1fr;gap:20px}
  .side{position:static}
  .side nav{display:flex;gap:8px;overflow-x:auto;padding-bottom:4px}
  .side h2{display:none}
  .side nav a{flex:none;gap:8px;padding:9px 16px;border:1px solid var(--line);border-radius:99px;font-size:14.5px}
  .side nav a[aria-current]{background:var(--ink);border-color:var(--ink);color:#fff}
  .side nav a i{display:none}
  .search{margin-top:12px}
  .banner{grid-template-columns:1fr}
  .grid{gap:44px 24px}
}
@media (max-width:600px){
  .grid,.grid.small{grid-template-columns:1fr}
  .head-cta{display:none}
  .float a{width:50px;height:50px}
}