/* ============================================================
   로드브리핑 () — 공통 스타일
   속도 우선: 시스템 폰트, 가벼운 CSS, JS 최소.
   재스킨 쉬움: 아래 --accent 한 줄만 바꾸면 전체 색이 바뀜.
   ============================================================ */

:root{
  --bg:#ffffff;
  --surface:#f6f7f9;
  --ink:#15171c;
  --muted:#5b626e;
  --faint:#68707c;
  --line:#e7e9ee;
  --accent:#2438e0;          /* 브랜드 강조색 — 여기 한 줄이 정체성 */
  --accent-ink:#1b2ba8;
  --maxw:1080px;
  --read:680px;
  --gutter:20px;
  --sans:"Pretendard","Apple SD Gothic Neo","Malgun Gothic","Segoe UI",system-ui,sans-serif;
  --serif:"Nanum Myeongjo","Batang",Georgia,serif;
}
@media(max-width:720px){
  main.wrap.doc{display:block;width:calc(100vw - 32px)!important;max-width:calc(100vw - 32px)!important;margin:0 16px!important;padding:28px 0 20px!important}
  main.wrap.doc>*{max-width:100%!important}
  main.wrap.doc p,main.wrap.doc li{max-width:100%!important;overflow-wrap:anywhere!important;word-break:break-word!important}
}
@media (prefers-color-scheme: dark){
  :root{
    --bg:#0f1114; --surface:#171a1f; --ink:#eceef2; --muted:#a3abb8;
    --faint:#6c7480; --line:#262a31; --accent:#7d8cff; --accent-ink:#aab4ff;
  }
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--sans);font-size:17px;line-height:1.65;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
a:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:3px}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 var(--gutter)}
.skip{position:absolute;left:-9999px}
.skip:focus{position:fixed;left:12px;top:12px;background:var(--ink);color:var(--bg);padding:10px 14px;border-radius:8px;z-index:100}

/* ---- 헤더 ---- */
.site-head{border-bottom:1px solid var(--line);position:sticky;top:0;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(10px);z-index:20}
.head-in{display:flex;align-items:center;gap:20px;height:64px}
.brand{display:inline-flex;align-items:center;gap:9px;font-weight:800;font-size:22px;letter-spacing:-.03em}
.brand::before{content:"";width:38px;height:38px;flex:0 0 38px;border-radius:10px;background:#fff url('roadbriefing-icon-192.png') center/cover no-repeat;box-shadow:0 0 0 1px var(--line)}
.brand b{color:var(--accent)}
.brand .tm{font-size:11px;color:var(--faint);font-weight:600;vertical-align:6px;margin-left:4px}
.nav{display:flex;gap:22px;margin-left:auto;align-items:center}
.nav a{font-size:14.5px;font-weight:600;color:var(--muted)}
.nav a:hover{color:var(--ink)}
.nav a.on{color:var(--accent)}
.menu-btn{display:none;margin-left:auto;background:none;border:1px solid var(--line);border-radius:8px;padding:8px 12px;color:var(--ink);font-size:14px;cursor:pointer}
@media(max-width:720px){
  .nav{display:none;position:absolute;top:64px;left:0;right:0;flex-direction:column;gap:0;background:var(--bg);border-bottom:1px solid var(--line);padding:6px 20px 14px}
  .nav.open{display:flex}
  .nav a{padding:11px 0;border-top:1px solid var(--line);font-size:16px}
  .menu-btn{display:block}
}

/* ---- 키커/라벨 ---- */
.kicker{display:inline-block;font-size:12px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--accent)}
.eyebrow{font-size:12.5px;color:var(--faint);font-weight:600}

/* ---- 홈 히어로 ---- */
.lead{display:grid;grid-template-columns:1.15fr .85fr;gap:36px;align-items:center;padding:40px 0 34px;border-bottom:1px solid var(--line)}
.lead-media{aspect-ratio:16/9;overflow:hidden;background:var(--surface)}
.lead h1{font-size:clamp(28px,4.4vw,44px);line-height:1.12;letter-spacing:-.03em;margin:14px 0 10px;font-weight:800}
.lead p{color:var(--muted);font-size:17px;margin:0}
.byline{margin-top:16px;font-size:13.5px;color:var(--faint)}
.byline b{color:var(--muted)}
@media(max-width:760px){.lead{grid-template-columns:1fr;gap:18px;padding:24px 0}}

/* ---- 카드 그리드 ---- */
.sec-title{display:flex;align-items:baseline;gap:12px;margin:38px 0 18px}
.sec-title h2{font-size:20px;letter-spacing:-.02em;margin:0}
.sec-title a{margin-left:auto;font-size:13.5px;color:var(--accent);font-weight:700}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
@media(max-width:860px){.grid{grid-template-columns:repeat(2,1fr);gap:20px}}
@media(max-width:540px){.grid{grid-template-columns:1fr}}
.card-media{aspect-ratio:16/9;overflow:hidden;background:var(--surface);margin-bottom:12px}
.card-media img,.hero-media img,.lead-media img{width:100%;height:100%;object-fit:cover}
/* 모바일: 이미지 좌우 꽉 채우기(full-bleed) — 언론사 스타일 */
@media(max-width:640px){
  :root{--gutter:16px}
  .hero-media,.lead-media,.card-media{margin-left:calc(-1*var(--gutter));margin-right:calc(-1*var(--gutter));border-radius:0}
  .hero-media{aspect-ratio:3/2}
  .caption{padding:0 2px}
}
.card h3{font-size:18px;line-height:1.32;letter-spacing:-.02em;margin:6px 0 6px;font-weight:700}
.card:hover h3{color:var(--accent)}
.card p{color:var(--muted);font-size:14.5px;margin:0}
.card .byline{margin-top:9px}
.grid>.card:first-child{grid-column:1/-1}
.grid>.card:first-child .card-media{width:100vw;margin-left:calc(50% - 50vw)}
.grid>.card:first-child h3{font-size:28px;line-height:1.25;margin-top:8px}
.grid>.card:first-child p:not(.byline){font-size:16px;line-height:1.65}
@media(min-width:861px){
  .grid>.card:first-child .card-media{width:100%;height:clamp(360px,38vw,430px);aspect-ratio:auto;margin-left:0;border-radius:14px}
}
@media(max-width:860px){.grid>.card:first-child{grid-column:1/-1}}
@media(max-width:540px){.grid>.card:first-child{grid-column:1/-1}.grid>.card:first-child h3{font-size:22px}.grid>.card:first-child p:not(.byline){font-size:15px}}

/* ---- 기사 본문 ---- */
.article{max-width:var(--read);margin:0 auto;padding:36px 0 10px}
.wrap.article-layout{max-width:1280px}
.article-layout{display:grid;grid-template-columns:minmax(0,var(--read)) 500px;gap:40px;align-items:start}
.article-column{min-width:0}
.article-layout .article{width:100%;margin:0}
.article-rail{position:relative;margin-top:92px;min-width:0;will-change:transform}
.article-rail h2{font-size:17px;margin:0 0 14px;padding-bottom:12px;border-bottom:2px solid var(--ink)}
.rail-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px 16px}
.rail-item{display:block;padding:0 0 16px;border-bottom:1px solid var(--line);min-width:0}
.rail-item img{width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;background:var(--surface);margin-bottom:10px}
.rail-item h3{font-size:16px;line-height:1.4;letter-spacing:-.02em;margin:0;font-weight:700}
.rail-item:hover h3{color:var(--accent)}
@media(min-width:1200px) and (max-height:920px){
  .article-rail{top:72px}
  .article-rail h2{font-size:16px;margin-bottom:10px;padding-bottom:8px}
  .rail-list{gap:12px 14px}
  .rail-item{padding-bottom:10px}
  .rail-item img{aspect-ratio:16/8.5;margin-bottom:6px}
  .rail-item h3{font-size:14px;line-height:1.3;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden}
}
@media(min-width:1200px) and (max-height:740px){
  .article-rail{top:66px;margin-top:60px}
  .article-rail h2{font-size:15px;margin-bottom:8px;padding-bottom:6px}
  .rail-list{gap:6px 12px}
  .rail-item{padding-bottom:5px}
  .rail-item img{aspect-ratio:16/6.8;margin-bottom:3px}
  .rail-item h3{font-size:12px;line-height:1.18}
}
@media(max-width:1199px){.article-layout{display:block}.article-rail{display:none}}
.breadcrumb{font-size:13px;color:var(--faint);margin-bottom:16px}
.breadcrumb a:hover{color:var(--accent)}
.article h1{max-width:var(--read);font-size:clamp(28px,4.6vw,42px);line-height:1.14;letter-spacing:-.03em;font-weight:800;margin:8px 0 14px}
.article .meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;color:var(--faint);font-size:13.5px;margin-bottom:24px}
.article .meta .au{color:var(--muted);font-weight:700}
.hero-media{aspect-ratio:16/9;overflow:hidden;background:var(--surface);margin-bottom:10px}
.caption{font-size:12.5px;color:var(--faint);margin:0 0 28px}
.prose{max-width:var(--read)}
.prose p{margin:0 0 20px}
.prose h2{font-size:24px;letter-spacing:-.02em;margin:34px 0 12px}
.prose h3{font-size:20px;margin:26px 0 10px}
.prose a{color:var(--accent);text-decoration:underline;text-underline-offset:2px}
.prose blockquote{margin:24px 0;padding:4px 0 4px 20px;border-left:3px solid var(--accent);color:var(--muted);font-size:19px}
.prose ul,.prose ol{margin:0 0 20px;padding-left:22px}
.prose li{margin:6px 0}

/* ---- 광고 자리 (CLS 방지: 고정 높이 예약) ---- */
.ad-slot{max-width:var(--read);margin:30px auto;min-height:280px;background:var(--surface);border:1px dashed var(--line);border-radius:10px;display:flex;align-items:center;justify-content:center;color:var(--faint);font-size:12px}

/* ---- 저자 박스 ---- */
.author-box{max-width:var(--read);margin:36px auto 0;padding:20px;border:1px solid var(--line);border-radius:14px;display:flex;gap:16px;align-items:center}
.author-box img{width:56px;height:56px;border-radius:50%;background:var(--surface);flex:none}
.author-box .n{font-weight:800}
.author-box .b{color:var(--muted);font-size:14px;margin-top:2px}
.continuous-feed{max-width:var(--maxw);margin:56px auto 20px;padding-top:30px;border-top:3px solid var(--ink)}
.continuous-feed>h2{font-size:26px;margin:0 0 22px}
.feed-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px 20px}
.feed-card{min-width:0}.feed-media{aspect-ratio:16/9;overflow:hidden;background:var(--surface);margin-bottom:12px}
.feed-media img{display:block;width:100%;height:100%;object-fit:cover}
.feed-card h3{font-size:17px;line-height:1.35;margin:5px 0 7px}.feed-card p{margin:0;color:var(--muted);font-size:13px;line-height:1.5}.feed-card .byline{margin-top:8px;font-size:12px}.feed-card:hover h3{color:var(--accent)}.feed-sentinel{height:1px}
@media(min-width:641px) and (max-width:900px){.feed-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:640px){.continuous-feed{margin-top:42px}.feed-grid{grid-template-columns:1fr;gap:30px}.feed-media{margin-left:calc(-1*var(--gutter));margin-right:calc(-1*var(--gutter))}.feed-card h3{font-size:20px}}

/* ---- 관련 기사 ---- */
.related{max-width:var(--read);margin:40px auto 0;padding-top:26px;border-top:1px solid var(--line)}

/* 연속 스크롤(다음 기사) */
.next-sep{max-width:var(--read);margin:64px auto 0;text-align:center;position:relative}
.next-sep::before{content:"";position:absolute;left:0;right:0;top:50%;border-top:1px solid var(--line)}
.next-sep span{position:relative;background:var(--bg);padding:0 14px;font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--faint);font-weight:700}
.next-article{animation:fadeIn .4s ease}
.article-stream{max-width:var(--read);margin:0 auto}
.article-stream .article{padding-top:22px}
.article-stream .article .breadcrumb{display:none}
.article-stream .stream-label{font-size:12px;letter-spacing:.13em;color:var(--accent);font-weight:800;margin:0 0 14px}
.after-stream{margin:60px 0 10px;padding-top:28px;border-top:3px solid var(--ink)}
.after-stream h2{font-size:25px;margin:0 0 20px}
.after-stream-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:26px 18px}
.after-card{min-width:0}
.after-card img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--surface);margin-bottom:10px}
.after-card h3{font-size:17px;line-height:1.38;letter-spacing:-.02em;margin:0 0 7px}
.after-card .byline{font-size:12px;margin:0;color:var(--faint)}
.after-card:hover h3{color:var(--accent)}
@media(max-width:640px){.after-stream{margin-top:48px}.after-stream-grid{grid-template-columns:1fr;gap:30px}.after-card img{margin-left:calc(-1*var(--gutter));width:calc(100% + (2 * var(--gutter)));max-width:none}.after-card h3{font-size:20px}}
@keyframes fadeIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
@media(prefers-reduced-motion:reduce){.next-article{animation:none}}

/* ---- 정적 문서(법적 페이지) ---- */
.doc{max-width:var(--read);margin:0 auto;padding:40px 0 20px}
.wrap.doc{max-width:calc(var(--read) + (2 * var(--gutter)));padding:40px var(--gutter) 20px}
.doc h1{font-size:32px;letter-spacing:-.02em;margin:0 0 8px}
.doc .updated{color:var(--faint);font-size:13.5px;margin-bottom:28px}
.doc h2{font-size:20px;margin:30px 0 10px}
.doc p,.doc li{color:var(--ink)}
.doc ul{padding-left:20px}
.doc .ph{background:color-mix(in srgb,var(--accent) 12%,transparent);border-radius:4px;padding:1px 6px;font-size:.9em}

/* ---- 푸터 ---- */
.site-foot{border-top:1px solid var(--line);margin-top:60px;padding:34px 0 50px;color:var(--muted);font-size:14px}
.foot-in{display:flex;flex-wrap:wrap;gap:22px 30px;align-items:flex-start}
.foot-brand{font-weight:800;font-size:18px;letter-spacing:-.02em}
.foot-nav{display:flex;flex-wrap:wrap;gap:16px;margin-left:auto}
.foot-nav a:hover{color:var(--accent)}
.foot-legal{width:100%;border-top:1px solid var(--line);margin-top:8px;padding-top:16px;color:var(--muted);font-size:12.5px}

.btn{display:inline-block;background:var(--accent);color:#fff;font-weight:700;font-size:14.5px;padding:11px 18px;border-radius:9px}
.btn:hover{background:var(--accent-ink)}



/* Road Briefing responsive hardening */
html,body{max-width:100%;overflow-x:hidden}
.article-media{margin:32px 0 10px}
.article-media img{display:block;width:100%;height:auto;aspect-ratio:16/9;object-fit:cover}
.article-media .caption{margin:8px 0 28px}
.article>figure{margin-left:0;margin-right:0}
.wrap,.doc,.foot-in,.foot-nav{min-width:0}
.author-mark{width:56px;height:56px;border-radius:50%;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:16px;letter-spacing:.02em;flex:none}
@media(max-width:720px){
  .site-head{position:relative}
  .head-in{height:60px}
  .foot-in{display:block}
  .foot-nav{margin:18px 0 0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px 16px;width:100%}
  .foot-nav a{overflow-wrap:anywhere}
  .foot-legal{margin-top:20px;line-height:1.6}
  .doc{padding-top:28px}
  .wrap.doc{padding:28px var(--gutter) 20px}
  .doc p,.doc li{overflow-wrap:anywhere;word-break:keep-all}
}

/* Road Briefing responsive hardening */
html,body{max-width:100%;overflow-x:hidden}
.wrap,.doc,.foot-in,.foot-nav{min-width:0}
.author-mark{width:56px;height:56px;border-radius:50%;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:16px;letter-spacing:.02em;flex:none}
@media(max-width:720px){
  body{width:100%}
  .site-head{position:relative}
  .head-in{height:60px}
  .foot-in{display:block}
  .foot-nav{margin:18px 0 0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px 16px;width:100%}
  .foot-nav a{overflow-wrap:anywhere}
  .foot-legal{margin-top:20px;line-height:1.6}
  .doc{padding-top:28px;width:100%;max-width:100%}
  .doc p,.doc li{max-width:100%;overflow-wrap:anywhere;word-break:normal}
}

/* Road Briefing responsive hardening */
html,body{max-width:100%;overflow-x:hidden}
.wrap,.doc,.foot-in,.foot-nav{min-width:0}
.author-mark{width:56px;height:56px;border-radius:50%;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:16px;letter-spacing:.02em;flex:none}
@media(max-width:720px){
  body{width:100%}
  .site-head{position:relative}
  .head-in{height:60px}
  .foot-in{display:block}
  .foot-nav{margin:18px 0 0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px 16px;width:100%}
  .foot-nav a{overflow-wrap:anywhere}
  .foot-legal{margin-top:20px;line-height:1.6}
  .doc{padding-top:28px;width:100%;max-width:100%}
  .doc p,.doc li{max-width:100%;overflow-wrap:anywhere;word-break:normal}
}

/* Road Briefing responsive hardening */
html,body{max-width:100%;overflow-x:hidden}
.wrap,.doc,.foot-in,.foot-nav{min-width:0}
.author-mark{width:56px;height:56px;border-radius:50%;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:16px;letter-spacing:.02em;flex:none}
@media(max-width:720px){
  body{width:100%}
  .site-head{position:relative}
  .head-in{height:60px}
  .foot-in{display:block}
  .foot-nav{margin:18px 0 0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px 16px;width:100%}
  .foot-nav a{overflow-wrap:anywhere}
  .foot-legal{margin-top:20px;line-height:1.6}
  .doc{padding-top:28px;width:100%;max-width:100%}
  .doc p,.doc li{max-width:100%;overflow-wrap:anywhere;word-break:normal}
  .article-media{margin-left:calc(-1*var(--gutter));margin-right:calc(-1*var(--gutter));width:auto}
  .article-media .caption{padding:0 var(--gutter)}
  .article>figure>.hero-media{margin-left:calc(-1*var(--gutter));margin-right:calc(-1*var(--gutter));width:calc(100% + (2 * var(--gutter)))}
  .article>figure>.caption{display:block;padding-left:0;padding-right:0}
}

/* Header interaction fix: layout-neutral underline and consistent active/focus states. */
.nav a{position:relative;transition:color .18s ease}
.nav a::after{content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;border-radius:2px;background:currentColor;transform:scaleX(0);transform-origin:center;transition:transform .18s ease}
.nav a:hover,.nav a.on,.nav a:focus-visible{color:var(--accent)}
.nav a:hover::after,.nav a.on::after,.nav a:focus-visible::after{transform:scaleX(1)}
.nav a:focus-visible,.menu-btn:focus-visible{outline:2px solid var(--accent);outline-offset:4px}