/* 신용문스튜디오 A안: 한지·먹·진사 / 마루 부리 + 프리텐다드 */
:root{
  --paper:#F3ECDD; --ink:#252D35; --jinsa:#A43D35; --soft:#DBCCB4;
  --paper-2:#EDE4D1; --line:rgba(37,45,53,.18); --line-2:rgba(37,45,53,.1); --muted:rgba(37,45,53,.72);
  --serif:'Maru Buri','MaruBuri','Noto Serif KR',serif;
  --sans:Pretendard,'Pretendard Variable','Malgun Gothic',sans-serif;
  --wrap:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font:400 16px/1.75 var(--sans);letter-spacing:-.01em;word-break:keep-all}
img{display:block;max-width:100%;height:auto}
a{color:inherit}
h1,h2,h3{font-family:var(--serif);font-weight:700;letter-spacing:-.03em;line-height:1.4;margin:0}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid var(--jinsa);outline-offset:3px}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 32px}
.narrow{max-width:820px}
.skip{position:absolute;left:-999px;top:8px;background:var(--ink);color:var(--paper);padding:10px 14px;z-index:50}
.skip:focus{left:8px}
.eyebrow{font-size:14px;font-weight:700;color:var(--jinsa);letter-spacing:.02em;margin-bottom:12px}
.sec-t{font-size:clamp(26px,3vw,36px);margin-bottom:28px}
.fine{font-size:14px;color:var(--muted);margin-top:16px}
.center{text-align:center}

/* 상단: 기존 로고(흰 글자)를 먹색 띠 위에 */
.top{position:sticky;top:0;z-index:30;background:var(--ink);color:var(--paper)}
.top-in{display:flex;align-items:center;gap:28px;height:72px}
.brand img{width:64px;height:auto}
.top nav{display:flex;gap:26px;margin-left:auto;font-size:15px;font-weight:500}
.top nav a{text-decoration:none;opacity:.86;padding:6px 0;border-bottom:1px solid transparent}
.top nav a:hover,.top nav a[aria-current]{opacity:1;border-color:currentColor}
.top-cta{background:var(--jinsa);color:var(--paper);text-decoration:none;font-weight:700;font-size:14px;padding:10px 16px;white-space:nowrap}

/* 버튼 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:52px;padding:0 24px;font-weight:700;font-size:16px;text-decoration:none;border:1px solid var(--jinsa);transition:transform .18s ease,background-color .18s ease}
.btn:hover{transform:translateY(-1px)}
.btn-main{background:var(--jinsa);color:var(--paper)}
.btn-line{color:var(--jinsa);background:transparent}
.btn-ghost{color:var(--ink);border-color:var(--line);background:transparent}
.btn-paper{background:var(--paper);color:var(--ink);border-color:var(--paper)}
.more{font-size:15px;font-weight:600;text-decoration:none;border-bottom:1px solid currentColor;padding-bottom:2px;white-space:nowrap}

/* 히어로 */
.hero{padding:80px 0 88px;border-bottom:1px solid var(--line-2)}
.hero-in{display:grid;grid-template-columns:1.35fr 1fr;gap:56px;align-items:center}
.hero h1{font-size:clamp(34px,3.6vw,50px);line-height:1.4;margin-bottom:24px}
.lead{font-size:18px;color:var(--muted);max-width:560px}
.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px}
.hero-photo{margin:0;background:var(--soft);padding:28px 28px 16px}
.hero-photo img{width:100%;aspect-ratio:1/1;object-fit:cover}
.hero-photo figcaption,.hero-works figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:12px}
.hero-works{margin:0;display:grid;gap:14px;background:var(--soft);padding:22px 22px 14px}
.hero-works img{width:100%;aspect-ratio:16/9;object-fit:cover}

/* 두 갈래 */
.paths{padding:88px 0}
.path-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.path{border:1px solid var(--line);padding:36px;display:flex;flex-direction:column;gap:14px;background:var(--paper)}
.path h3{font-size:26px}
.path>p:not(.eyebrow){color:var(--muted)}
.path .eyebrow{margin-bottom:0}
.path-act{display:flex;flex-wrap:wrap;gap:10px;margin-top:auto;padding-top:10px}

/* 용품 카테고리 */
.goods{padding:88px 0;background:var(--paper-2);border-top:1px solid var(--line-2);border-bottom:1px solid var(--line-2)}
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;margin-bottom:28px}
.sec-head .sec-t{margin-bottom:0}
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.cat{display:flex;flex-direction:column;text-decoration:none;background:var(--paper);border:1px solid var(--line-2);height:100%}
.cat-img{display:block;background:#F7F2E8;padding:18px;border-bottom:1px solid var(--line-2)}
.cat-img img{width:100%;aspect-ratio:1/1;object-fit:contain;transition:transform .4s ease}
.cat:hover .cat-img img{transform:scale(1.03)}
.cat-name{font-family:var(--serif);font-weight:700;font-size:21px;padding:16px 18px 2px}
.cat-note{font-size:14px;color:var(--jinsa);font-weight:600;padding:0 18px 16px}
.cat-name:last-child{padding-bottom:16px}

/* 마케팅 요약 */
.services{padding:88px 0}
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--ink)}
.svc{padding:28px 24px 30px;border-bottom:1px solid var(--line)}
.svc+.svc{border-left:1px solid var(--line)}
.svc-no{font-size:13px;font-weight:700;color:var(--jinsa)}
.svc h3{font-size:23px;margin:10px 0 8px}
.svc p{color:var(--muted)}
.svc-price{margin-top:18px;color:var(--ink)!important}
.svc-price b{font-size:20px}
.svc-price small,.plan-price small{font-size:13px;color:var(--muted);font-weight:500}

/* 포트폴리오 */
.works{padding:88px 0;background:var(--paper-2);border-top:1px solid var(--line-2)}
.work-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.work{display:block;text-decoration:none}
.work-img{display:block;overflow:hidden;background:var(--ink)}
.work-img img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s ease}
.work:hover .work-img img{transform:scale(1.03)}
.work-title{display:block;font-size:15px;font-weight:600;line-height:1.55;margin-top:12px}

/* 채널 */
.channels{padding:88px 0}
.ch-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.ch-grid a{display:flex;flex-direction:column;gap:4px;border:1px solid var(--line);padding:22px 20px;text-decoration:none;min-height:96px;transition:background-color .18s ease}
.ch-grid a:hover{background:var(--paper-2)}
.ch-grid b{font-family:var(--serif);font-size:19px}
.ch-grid span{font-size:14px;color:var(--muted)}
.operator{margin-top:28px;font-size:15px;color:var(--muted)}
.operator a{color:var(--ink);font-weight:600}

/* 마케팅 상세 */
.steps{padding:80px 0;border-bottom:1px solid var(--line-2)}
.step-list{display:grid;grid-template-columns:repeat(5,1fr);border-top:1px solid var(--ink)}
.step-list li{padding:22px 18px 6px 0}
.step-list span{font-size:13px;font-weight:700;color:var(--jinsa)}
.step-list h3{font-size:20px;margin:6px 0 8px}
.step-list p{font-size:15px;color:var(--muted)}
.price{padding:88px 0}
.tabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px;position:sticky;top:72px;background:var(--paper);padding:12px 0;z-index:5;border-bottom:1px solid var(--line-2)}
.tabs a{font-size:14px;font-weight:600;text-decoration:none;border:1px solid var(--line);padding:9px 14px}
.tabs a:hover{border-color:var(--ink)}
.group{padding-top:44px;scroll-margin-top:96px}
.group-t{font-size:24px;margin-bottom:18px}
.plan-grid{display:grid;gap:16px}
.plan-grid.two{grid-template-columns:1fr 1fr}
.plan-grid.three{grid-template-columns:repeat(3,1fr)}
.plan{border:1px solid var(--line);padding:30px 28px;background:var(--paper);position:relative}
.plan-pick{border:2px solid var(--jinsa)}
.badge{position:absolute;top:-1px;right:24px;background:var(--jinsa);color:var(--paper);font-size:13px;font-weight:700;padding:5px 10px}
.plan h3{font-size:22px}
.plan-sum{color:var(--muted);font-size:15px;margin-top:6px}
.plan-price{margin-top:18px;padding-top:16px;border-top:1px solid var(--line-2)}
.plan-price b{font-size:26px;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.plan-min{font-size:14px;color:var(--jinsa);font-weight:600;margin-top:4px}
.plan ul{margin-top:18px;display:grid;gap:8px}
.plan li{font-size:15px;padding-left:18px;position:relative}
.plan li::before{content:"";position:absolute;left:2px;top:.72em;width:6px;height:6px;background:var(--jinsa)}
.faq{padding:88px 0;border-top:1px solid var(--line-2)}
details{border-top:1px solid var(--line)}
details:last-child{border-bottom:1px solid var(--line)}
summary{cursor:pointer;list-style:none;padding:20px 32px 20px 0;font-weight:700;font-size:17px;position:relative}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";position:absolute;right:4px;top:16px;font-size:22px;font-weight:400;color:var(--jinsa)}
details[open] summary::after{content:"−"}
details p{padding:0 0 22px;color:var(--muted)}
.cta{background:var(--ink);color:var(--paper);padding:80px 0}
.cta-in{display:flex;flex-direction:column;align-items:flex-start;gap:22px}
.cta h2{font-size:clamp(26px,3vw,38px)}
.cta p{font-size:15px;opacity:.85}

/* 하단 */
.foot{background:var(--ink);color:var(--paper);padding:56px 0 110px;font-size:14px;border-top:1px solid rgba(243,236,221,.12)}
.foot-brand{display:flex;align-items:center;gap:18px;padding-bottom:28px;border-bottom:1px solid rgba(243,236,221,.18)}
.foot-copy{font-family:var(--serif);font-size:18px;font-weight:700;line-height:1.5}
.foot-grid{display:grid;grid-template-columns:1fr 2fr 1.3fr;gap:32px;padding:28px 0}
.foot-grid h2{font-family:var(--sans);font-size:14px;font-weight:700;margin-bottom:10px;opacity:.75}
.foot-grid a{display:block;text-decoration:none;opacity:.9;margin-bottom:4px}
.foot-grid a:hover{text-decoration:underline}
.foot-grid p{opacity:.85;line-height:1.8}
.foot-legal{opacity:.65;font-size:13px}
.float-chat{position:fixed;right:20px;bottom:20px;z-index:40;display:flex;align-items:center;gap:8px;background:var(--jinsa);color:var(--paper);text-decoration:none;padding:13px 18px;font-size:15px;box-shadow:0 6px 18px rgba(37,45,53,.22)}

/* 등장 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .7s ease,transform .7s ease}
.reveal.on{opacity:1;transform:none}
.no-js .reveal{opacity:1;transform:none}

@media (max-width:1000px){
  .hero-in{grid-template-columns:1fr;gap:40px}
  .hero-photo,.hero-works{max-width:560px}
  .work-grid{grid-template-columns:repeat(2,1fr)}
  .ch-grid{grid-template-columns:repeat(2,1fr)}
  .step-list{grid-template-columns:repeat(3,1fr)}
  .plan-grid.three{grid-template-columns:1fr 1fr}
  .top nav{gap:18px}
}
@media (max-width:720px){
  body{font-size:15px}
  .wrap{padding:0 20px}
  .top-in{height:62px;gap:12px}
  .brand img{width:52px}
  .top nav{display:none}
  .top-cta{margin-left:auto;padding:9px 13px}
  html{scroll-padding-top:70px}
  .hero{padding:44px 0 56px}
  .hero h1{font-size:31px}
  .lead{font-size:16px}
  .actions{flex-direction:column}
  .actions .btn{width:100%}
  .hero-photo{padding:18px 18px 10px}
  .paths,.goods,.services,.works,.channels,.price,.faq,.steps{padding:60px 0}
  .path-grid,.svc-grid,.plan-grid.two,.plan-grid.three,.foot-grid{grid-template-columns:1fr}
  .path{padding:26px 22px}
  .path h3{font-size:23px}
  .path-act .btn{flex:1 1 100%}
  .sec-head{flex-direction:column;align-items:flex-start}
  .cat-grid{grid-template-columns:1fr 1fr;gap:12px}
  .cat-img{padding:12px}
  .cat-name{font-size:18px;padding:12px 12px 0}
  .cat-note{font-size:13px;padding:0 12px 12px}
  .cat-name:last-child{padding-bottom:12px}
  .svc+.svc{border-left:0}
  .svc{padding:22px 0}
  .work-grid{grid-template-columns:1fr 1fr;gap:12px}
  .work-title{font-size:14px}
  .ch-grid{grid-template-columns:1fr 1fr}
  .ch-grid a{padding:16px 14px;min-height:84px}
  .step-list{grid-template-columns:1fr}
  .step-list li{padding:16px 0;border-bottom:1px solid var(--line-2)}
  .tabs{top:62px;flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none}
  .tabs a{white-space:nowrap}
  .group{scroll-margin-top:80px}
  .plan{padding:24px 20px}
  .plan-price b{font-size:23px}
  .foot-brand{flex-direction:column;align-items:flex-start}
  .float-chat{right:14px;bottom:14px;padding:12px 15px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none!important;animation:none!important}
  .reveal{opacity:1;transform:none}
}

/* 결정 반영 (2026-10-16) */
.cta-badge{display:inline-block;background:var(--jinsa);color:var(--paper);font-size:14px;font-weight:700;padding:6px 12px}
.foot-links{display:flex;gap:18px;margin-bottom:10px;font-size:14px}
.foot-links a{text-decoration:none;opacity:.9}
.foot-links a:hover{text-decoration:underline}
.legal{padding:72px 0 96px}
.legal h1{font-size:clamp(28px,3vw,38px);margin-bottom:28px}
.legal h2{font-size:20px;margin:30px 0 10px}
.legal p{color:var(--muted)}
.legal p a{color:var(--ink);font-weight:600}
@media (max-width:720px){
  .top-in{flex-wrap:wrap;height:auto;padding-top:8px;row-gap:0}
  .top nav{display:flex;order:3;width:calc(100% + 40px);margin:0 -20px;padding:0 20px;gap:20px;overflow-x:auto;scrollbar-width:none;height:44px;align-items:center;border-top:1px solid rgba(243,236,221,.14);font-size:14px}
  .top nav::-webkit-scrollbar{display:none}
  .top nav a{white-space:nowrap}
  .top-in>.brand{height:54px;display:flex;align-items:center}
  html{scroll-padding-top:110px}
  .tabs{top:106px}
  .group{scroll-margin-top:124px}
}

/* 로고 통일: 유튜브 로고 원형 (2026-10-16) */
.logo-badge{border-radius:50%;object-fit:cover;display:block}
.brand img.logo-badge{width:48px;height:48px}
.foot-brand img.logo-badge{width:56px;height:56px}
@media (max-width:720px){.brand img.logo-badge{width:42px;height:42px}}