/* 심지 회사 사이트 스타일 (v4 여러 페이지)
   배치: 흰 구역 ↔ 검정 구역 교차. 큰 문장은 굵기 400~500. 목록은 큰 글자 + 가는 선.
   색: 검정·흰 + 그린은 버튼에만. 글꼴: Pretendard. 색은 이 변수에서만 바꿈. */
:root{
  --ink:#111111; --paper:#ffffff; --soft:#f5f5f3; --green:#006241; --green-hover:#004d33;
  --ink-sub:#555555; --ink-faint:#767676; --line:#e5e5e5;
  --on-ink:#ffffff; --on-ink-sub:#a3a3a3; --line-ink:#2e2e2e;
  --photo-light:#dcdcda; --photo-dark:#2b2b2b; --photo-text:#4f4f4f; --photo-text-dark:#b0b0b0;
  --font:"Pretendard Variable",-apple-system,"Apple SD Gothic Neo","Malgun Gothic",sans-serif;
  --ease:cubic-bezier(.2,.7,.1,1);
  --nav:64px;
  color-scheme:light;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font);font-size:17px;line-height:1.75;word-break:keep-all;-webkit-font-smoothing:antialiased}
a{color:inherit}
img{max-width:100%}
:focus-visible{outline:3px solid var(--green);outline-offset:3px}
.in{max-width:1280px;margin:0 auto;padding-left:max(32px,env(safe-area-inset-left,0px));padding-right:max(32px,env(safe-area-inset-right,0px))}
.skip{position:absolute;left:-9999px;top:0}
.skip:focus{left:12px;top:12px;z-index:100;background:var(--paper);padding:8px 12px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}

/* 상단 메뉴 */
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:51;background:var(--ink)}
.nav{position:fixed;top:env(safe-area-inset-top,0px);left:0;right:0;z-index:50;background:var(--ink);color:var(--on-ink)}
.nav .in{display:flex;align-items:center;justify-content:space-between;height:var(--nav);gap:16px}
.mark{font-weight:700;font-size:19px;letter-spacing:-.01em;text-decoration:none;white-space:nowrap}
.links{display:flex;align-items:center;gap:28px;font-size:15px;font-weight:600}
.links a:not(.btn){text-decoration:none;color:var(--on-ink-sub);transition:color .2s}
.links a:not(.btn):hover,.links a[aria-current]{color:var(--on-ink)}
.menu-btn{display:none;background:none;border:0;width:44px;height:44px;position:relative;cursor:pointer;color:var(--on-ink)}
.menu-btn span:not(.sr){position:absolute;left:11px;right:11px;height:2px;background:currentColor;transition:transform .25s var(--ease)}
.menu-btn span:nth-child(1){top:17px}.menu-btn span:nth-child(2){top:25px}
.menu-btn[aria-expanded="true"] span:nth-child(1){transform:translateY(4px) rotate(45deg)}
.menu-btn[aria-expanded="true"] span:nth-child(2){transform:translateY(-4px) rotate(-45deg)}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 22px;border-radius:999px;background:var(--green);color:#fff;font:inherit;font-weight:600;font-size:15px;text-decoration:none;border:0;cursor:pointer;transition:background .2s,transform .2s var(--ease)}
.btn:hover{background:var(--green-hover)}
.btn:active{transform:scale(.97)}
.btn-lg{min-height:52px;padding:0 34px;font-size:16px}
.ghost{display:inline-flex;align-items:center;min-height:48px;padding:0 24px;border:1px solid currentColor;border-radius:999px;font-weight:600;font-size:15px;text-decoration:none;transition:background .25s,color .25s}
.ghost:hover{background:var(--on-ink);color:var(--ink)}
.more{display:inline-block;margin-top:24px;font-size:15px;font-weight:600;text-decoration:none;border-bottom:1px solid currentColor;padding-bottom:2px}

/* 사진 자리: 파일이 없으면 회색 자리와 설명이 보임 */
.photo{position:relative;margin:0;background:var(--photo-light);overflow:hidden;display:grid;place-items:center;color:var(--photo-text);max-width:100%}
.dark .photo{background:var(--photo-dark);color:var(--photo-text-dark)}
.photo .ph{display:grid;gap:4px;padding:10px 14px;border:1px dashed currentColor;border-radius:6px;font-size:14px;font-weight:600;text-align:center;max-width:90%}
.photo .ph-public{border:0;font-weight:500;font-size:13px;opacity:.8}
.photo .ph small{font-weight:500;font-size:12px;opacity:.85}
.photo picture{position:absolute;inset:0}
.photo img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease)}

/* 공통 구역 */
main{padding-top:calc(var(--nav) + env(safe-area-inset-top,0px))}
section{scroll-margin-top:calc(var(--nav) + 8px)}
.sec{padding-block:clamp(88px,10vw,144px)}
.soft{background:var(--soft)}
.dark{background:var(--ink);color:var(--on-ink)}
.label{margin:0;font-size:14px;font-weight:600;color:var(--ink-faint);letter-spacing:.02em}
.dark .label{color:var(--on-ink-sub)}
.title{margin:12px 0 0;font-weight:600;font-size:clamp(32px,3.8vw,54px);line-height:1.22;letter-spacing:-.025em;text-wrap:balance}
.big{margin:0;font-weight:400;font-size:clamp(34px,5vw,72px);line-height:1.22;letter-spacing:-.035em;text-wrap:balance}
.big em{font-style:normal;font-weight:500}
.lead{margin:20px 0 0;max-width:46ch;color:var(--ink-sub);font-size:clamp(17px,1.4vw,19px)}
.dark .lead,.muted{color:var(--on-ink-sub)}
.fine{font-size:14px;color:var(--ink-faint)}
.dark .fine{color:var(--on-ink-sub)}
.head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:16px}
.head .more{margin-top:0}

/* 페이지 머리 */
.phead{padding-block:clamp(72px,9vw,128px) clamp(48px,6vw,80px)}
.phead .title{font-size:clamp(36px,4.6vw,64px);font-weight:500}

/* 홈 첫 화면 */
.hero{position:relative;background:var(--ink);color:var(--on-ink)}
.hero-photo{height:min(86svh,880px);min-height:440px;background:var(--photo-dark)!important;color:var(--photo-text-dark)!important}
.hero-over{position:absolute;left:0;right:0;bottom:0;padding-block:clamp(96px,14vw,180px) clamp(32px,5vw,56px);background:linear-gradient(rgba(17,17,17,0),rgba(17,17,17,.78) 62%,rgba(17,17,17,.86))}
.hero .cap,.hero .ghost{text-shadow:0 1px 2px rgba(0,0,0,.35)}
.hero-over .in{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px}
.hero .cap{margin:0;font-size:clamp(16px,1.4vw,19px);font-weight:500;max-width:30ch}
.hero .ghost{color:var(--on-ink)}

/* 홈 소개 */
.intro{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,4fr);gap:48px clamp(48px,7vw,120px);align-items:end}
.side{display:grid;gap:18px;color:var(--ink-sub);font-size:16px;line-height:1.8}
.side p{margin:0}
.side .fine{border-top:1px solid var(--line);padding-top:16px;display:flex;flex-wrap:wrap;gap:4px 14px}
.side .more{margin-top:0;color:var(--ink)}

/* 사례 격자 (큰 1 + 세로 2, 아래 3열) */
.works{margin-top:clamp(40px,5vw,64px);display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:40px 24px}
.work{min-width:0;text-decoration:none;display:grid;gap:14px;align-content:start}
.work:hover .photo img{transform:scale(1.03)}
.w-main{grid-column:1/3;grid-row:1/3}
.w-main .photo{aspect-ratio:auto!important;height:100%;min-height:420px}
.work h3{margin:0;font-size:clamp(18px,1.6vw,22px);font-weight:600;line-height:1.4}
.work .meta{display:flex;flex-wrap:wrap;gap:6px 14px;font-size:14px;color:var(--on-ink-sub)}

/* 과정 목록: 큰 글자 + 가는 선 */
.rows{margin-top:clamp(32px,4vw,56px);border-top:1px solid var(--ink)}
.row{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,5fr) auto;gap:8px 40px;align-items:baseline;padding:30px 0;border-bottom:1px solid var(--line);text-decoration:none}
.row h3{margin:0;font-weight:400;font-size:clamp(24px,2.8vw,40px);line-height:1.25;letter-spacing:-.025em;transition:transform .3s var(--ease)}
.row p{margin:0;color:var(--ink-sub);font-size:16px}
.row .go{font-size:14px;font-weight:600;color:var(--ink-sub);white-space:nowrap;border-bottom:1px solid var(--line)}
@media (hover:hover){.row:hover h3{transform:translateX(8px)}.row:hover .go{color:var(--ink);border-color:var(--ink)}}

/* 단계 */
.method{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:40px 72px;align-items:start}
.method .stick{position:sticky;top:calc(var(--nav) + 48px)}
.steps{list-style:none;margin:0;padding:0}
.steps li{display:grid;grid-template-columns:64px minmax(0,1fr);gap:16px;padding:32px 0;border-top:1px solid var(--line)}
.steps li:first-child{border-top-color:var(--ink)}
.steps b{font-weight:300;font-size:40px;line-height:1;font-variant-numeric:tabular-nums}
.steps h3{margin:0;font-size:22px;font-weight:600}
.steps p{margin:6px 0 0;color:var(--ink-sub)}
.steps.wide{margin-top:24px}
.mini{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.mini li{display:grid;grid-template-columns:36px minmax(0,1fr);gap:10px;padding:14px 0;border-bottom:1px solid var(--line);font-size:16px}
.mini b{font-weight:500;color:var(--ink-faint)}

/* 회사 소개 */
.cols3,.cols4{margin-top:48px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px;border-top:1px solid var(--ink);padding-top:32px}
.cols4{grid-template-columns:repeat(4,minmax(0,1fr))}
.cols3 h3,.cols4 h3{margin:0 0 8px;font-size:20px;font-weight:600}
.cols3 p,.cols4 p{margin:0;color:var(--ink-sub);font-size:16px}
.ceo{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:48px clamp(48px,7vw,120px);align-items:center}
.ceo .big{margin-top:12px}
.dl{margin:32px 0 0;display:grid;grid-template-columns:max-content minmax(0,1fr);border-top:1px solid var(--line-ink)}
.dl dt,.dl dd{margin:0;padding:14px 0;border-bottom:1px solid var(--line-ink);font-size:16px}
.dl dt{color:var(--on-ink-sub);padding-right:28px}
.dl.light{border-top-color:var(--ink)}
.dl.light dt,.dl.light dd{border-bottom-color:var(--line)}
.dl.light dt{color:var(--ink-faint)}
.two{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:48px 72px}
.list{margin:16px 0 0;padding:0;list-style:none;border-top:1px solid var(--ink)}
.list li{padding:16px 0;border-bottom:1px solid var(--line);font-size:18px}

/* 상세 */
.detail{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,4fr);gap:40px 64px;align-items:start}
.spec{margin:0;display:grid;grid-template-columns:max-content minmax(0,1fr);border-top:1px solid var(--ink)}
.spec dt,.spec dd{margin:0;padding:16px 0;border-bottom:1px solid var(--line)}
.spec dt{color:var(--ink-faint);padding-right:24px;font-size:15px}
.tbl{overflow-x:auto;margin-top:32px}
table{border-collapse:collapse;width:100%;min-width:520px}
th,td{text-align:left;padding:16px 16px 16px 0;border-bottom:1px solid var(--line);vertical-align:top}
th{font-weight:600;border-bottom-color:var(--ink);font-size:15px}

/* FAQ */
.narrow{max-width:880px}
.qa{border-bottom:1px solid var(--line)}
.qa:first-child{border-top:1px solid var(--ink)}
.qa summary{cursor:pointer;list-style:none;padding:24px 40px 24px 0;font-size:clamp(18px,1.7vw,22px);font-weight:500;position:relative}
.qa summary::-webkit-details-marker{display:none}
.qa summary::after{content:"";position:absolute;right:6px;top:50%;width:12px;height:12px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:translateY(-70%) rotate(45deg);transition:transform .25s var(--ease)}
.qa[open] summary::after{transform:translateY(-30%) rotate(-135deg)}
.qa p{margin:0 0 24px;color:var(--ink-sub);max-width:60ch}

/* 문의 */
.cta-in{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:32px}
.contact{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,7fr);gap:56px clamp(48px,7vw,120px)}
form{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:26px 24px;align-content:start}
.f{display:grid;gap:6px;min-width:0}
.f.wide{grid-column:1/-1}
label{font-size:14px;font-weight:600;color:var(--ink-sub)}
label i{font-style:normal;color:var(--ink-faint);font-weight:500}
input,select,textarea{font:inherit;font-size:17px;color:var(--ink);background:transparent;border:0;border-bottom:1px solid #bdbdbd;padding:10px 0;border-radius:0;width:100%;min-height:44px;transition:border-color .2s}
select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--ink) 50%),linear-gradient(135deg,var(--ink) 50%,transparent 50%);background-position:calc(100% - 12px) 55%,calc(100% - 7px) 55%;background-size:5px 5px;background-repeat:no-repeat;padding-right:24px}
textarea{min-height:140px;resize:vertical}
input:focus,select:focus,textarea:focus{outline:none;border-bottom-color:var(--ink)}
.agree{grid-column:1/-1;display:flex;gap:10px;align-items:flex-start;font-size:14px;line-height:1.6}
.agree input{width:20px;height:20px;min-height:0;margin-top:2px;accent-color:var(--green);flex-shrink:0}
.send{grid-column:1/-1;display:flex;flex-wrap:wrap;gap:12px 20px;align-items:center}
.msg{font-size:14px;color:var(--ink-sub)}

/* 바닥 */
.foot{background:var(--ink);color:var(--on-ink-sub);font-size:14px;padding-block:56px 40px;border-top:1px solid var(--line-ink)}
.foot .in{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:24px 48px}
.foot b{color:var(--on-ink);font-size:17px}
.foot p{margin:6px 0 0}
.foot nav{display:flex;flex-wrap:wrap;gap:8px 24px}
.foot nav a{text-decoration:none}
.foot nav a:hover{color:var(--on-ink)}
.foot .fine{grid-column:1/-1;margin:0;color:var(--on-ink-sub)}

/* 움직임: 화면 밖 요소만 스크롤로 등장 */
.js .rv.pre{opacity:0;transform:translateY(32px)}
.js .rv{transition:opacity .8s var(--ease),transform .8s var(--ease)}
.js .hero-photo .ph,.js .hero-photo img{animation:settle 1.4s var(--ease) both}
@keyframes settle{from{opacity:0;transform:scale(1.04)}to{opacity:1;transform:none}}

@media (max-width:900px){
  :root{--nav:56px}
  .in{padding-left:max(20px,env(safe-area-inset-left,0px));padding-right:max(20px,env(safe-area-inset-right,0px))}
  .menu-btn{display:block}
  .links{position:fixed;top:calc(var(--nav) + env(safe-area-inset-top,0px));left:0;right:0;bottom:0;background:var(--ink);flex-direction:column;align-items:stretch;gap:0;padding:8px max(20px,env(safe-area-inset-left,0px)) calc(24px + env(safe-area-inset-bottom,0px));overflow-y:auto;visibility:hidden;opacity:0;transform:translateY(-8px);transition:opacity .25s var(--ease),transform .25s var(--ease),visibility 0s .25s}
  .links.open{visibility:visible;opacity:1;transform:none;transition:opacity .25s var(--ease),transform .25s var(--ease)}
  .links a:not(.btn){font-size:22px;padding:18px 0;border-bottom:1px solid var(--line-ink);color:var(--on-ink)}
  .links .btn{margin-top:24px;min-height:52px}
  .hero-photo{height:72svh;min-height:420px}
  .intro,.ceo,.contact,.method,.detail,.two{grid-template-columns:minmax(0,1fr)}
  .method .stick{position:static}
  .works{grid-template-columns:minmax(0,1fr);gap:36px}
  .w-main{grid-column:auto;grid-row:auto}
  .w-main .photo{min-height:0;height:auto;aspect-ratio:4/3!important}
  .row{grid-template-columns:minmax(0,1fr);padding:24px 0}
  .cols3,.cols4{grid-template-columns:minmax(0,1fr)}
  form{grid-template-columns:minmax(0,1fr)}
  .ceo .photo{max-width:420px}
  .foot .in{grid-template-columns:minmax(0,1fr)}
  .steps li{grid-template-columns:48px minmax(0,1fr)}
  .steps b{font-size:32px}
}
@media (min-width:901px) and (max-width:1100px){
  .works{grid-template-columns:repeat(2,minmax(0,1fr))}
  .w-main{grid-column:1/-1;grid-row:auto}
  .w-main .photo{min-height:0;height:auto;aspect-ratio:16/9!important}
  .links{gap:18px;font-size:14px}
  .cols4{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
  .js .rv.pre{opacity:1;transform:none}
}