/* ============================================================
   바라기 미래연구소 — 모노크롬 디자인 시스템
   ============================================================ */
:root{
  --ink:#111111;
  --bg:#FAFAF8;
  --gray:#8A8A86;
  --gray-2:#555550;
  --gray-3:#C2C2BD;
  --white:#FFFFFF;
  --pad-x:56px;
  --max-w:1760px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
html{background:var(--bg)}
body{
  font-family:"Pretendard Variable",Pretendard,-apple-system,BlinkMacSystemFont,"Malgun Gothic",sans-serif;
  background:var(--bg);color:var(--ink);
  -webkit-font-smoothing:antialiased;word-break:keep-all;
  max-width:var(--max-w);margin:0 auto;
}
@media(min-width:1762px){
  body{border-left:1px solid var(--ink);border-right:1px solid var(--ink)}
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul{list-style:none}
::selection{background:var(--ink);color:var(--bg)}

/* ---------- 공통 레이아웃 ---------- */
.container{max-width:var(--max-w);margin:0 auto;padding-left:var(--pad-x);padding-right:var(--pad-x)}
.kicker{font-size:13px;font-weight:700;letter-spacing:.34em;color:var(--gray)}

/* ---------- 내비게이션 ---------- */
.nav{
  position:sticky;top:0;z-index:100;background:rgba(250,250,248,.92);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--ink);
}
.nav .in{display:flex;justify-content:space-between;align-items:center;padding:0 var(--pad-x);height:76px;max-width:var(--max-w);margin:0 auto}
.nav .logo{font-size:16px;font-weight:800;letter-spacing:-.02em}
.nav ul{display:flex;gap:40px;align-items:center}
.nav ul a{font-size:14px;font-weight:600;position:relative;padding:4px 0}
.nav ul a:not(.c)::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--ink);transition:width .25s}
.nav ul a:not(.c):hover::after,.nav ul a.on::after{width:100%}
.nav ul a.c{background:var(--ink);color:#fff;padding:13px 26px;transition:background .2s}
.nav ul a.c:hover{background:#333}
.nav .burger{display:none;background:none;border:none;cursor:pointer;width:40px;height:40px;position:relative}
.nav .burger span{position:absolute;left:8px;right:8px;height:2px;background:var(--ink);transition:all .3s}
.nav .burger span:nth-child(1){top:13px}
.nav .burger span:nth-child(2){top:20px}
.nav .burger span:nth-child(3){top:27px}
.nav.menu-open .burger span:nth-child(1){top:20px;transform:rotate(45deg)}
.nav.menu-open .burger span:nth-child(2){opacity:0}
.nav.menu-open .burger span:nth-child(3){top:20px;transform:rotate(-45deg)}

/* ---------- 푸터 ---------- */
.footer{border-top:1px solid var(--ink);margin-top:0}
.footer .in{max-width:var(--max-w);margin:0 auto;padding:56px var(--pad-x) 64px;display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px}
.footer .brand .t{font-size:17px;font-weight:800}
.footer .brand p{margin-top:14px;font-size:13.5px;line-height:2;color:var(--gray-2)}
.footer h4{font-size:12px;font-weight:700;letter-spacing:.28em;color:var(--gray);margin-bottom:16px}
.footer .col a,.footer .col span{display:block;font-size:14px;font-weight:500;padding:5px 0;color:var(--gray-2)}
.footer .col a:hover{color:var(--ink)}
.footer .base{border-top:1px solid rgba(17,17,17,.12)}
.footer .base .in2{max-width:var(--max-w);margin:0 auto;padding:20px var(--pad-x);display:flex;justify-content:space-between;font-size:12px;color:var(--gray);flex-wrap:wrap;gap:8px}

/* ---------- 버튼 · 링크 ---------- */
.btn-solid{display:inline-block;background:var(--ink);color:#fff;font-size:15px;font-weight:700;padding:18px 40px;transition:background .2s;border:none;cursor:pointer}
.btn-solid:hover{background:#333}
.btn-line{display:inline-flex;align-items:center;gap:12px;font-size:16px;font-weight:800;border-bottom:3px solid var(--ink);padding-bottom:8px}
.btn-line .ar{font-size:20px;transition:transform .25s}
.btn-line:hover .ar{transform:translateX(8px)}

/* ---------- 홈: 히어로 ---------- */
.hero{display:grid;grid-template-columns:1.1fr 1fr;min-height:calc(100vh - 76px)}
.hero .txt{position:relative;padding:64px 0 52px var(--pad-x);display:flex;flex-direction:column;justify-content:space-between;gap:48px;overflow:hidden}
.hero .txt>div:first-child,.hero .foot{position:relative;z-index:1}
.hero .wm{display:none;position:absolute;right:28px;bottom:-14px;font-size:clamp(140px,13vw,260px);font-weight:900;letter-spacing:-.02em;line-height:1;color:transparent;-webkit-text-stroke:1px #E4E4DF;white-space:nowrap;pointer-events:none;user-select:none;z-index:0}
.hero h1{font-size:clamp(52px,7.4vw,132px);line-height:1.06;font-weight:900;letter-spacing:-.045em;margin-top:clamp(30px,3vw,48px)}
.hero h1 .soft{color:var(--gray-3)}
.hero .sub{margin-top:clamp(40px,3.4vw,56px);max-width:540px}
.hero .sub p{font-size:clamp(17px,1.2vw,20px);line-height:1.8;color:#444}
.hero .sub .btn-line{margin-top:34px}
.hero .foot{display:flex;gap:clamp(56px,5vw,88px)}
.hero .foot .f .n{font-size:clamp(30px,2.4vw,44px);font-weight:900;letter-spacing:-.03em}
.hero .foot .f .l{font-size:13px;color:var(--gray);font-weight:600;margin-top:6px}
.hero .pic{position:relative;border-left:1px solid var(--ink);overflow:hidden}
.hero .pic img{width:100%;height:100%;object-fit:cover;object-position:center 20%;filter:none;transition:filter 1.2s ease}
.hero .pic img.bw{filter:grayscale(1) contrast(1.06)}
.hero .pic .tag{position:absolute;left:0;bottom:0;background:var(--ink);color:#fff;font-size:12px;font-weight:700;letter-spacing:.18em;padding:14px 22px}

/* ---------- 마퀴 ---------- */
.marq{border-top:1px solid var(--ink);border-bottom:1px solid var(--ink);overflow:hidden;background:var(--ink);color:#fff}
.marq .track{display:flex;gap:64px;white-space:nowrap;padding:18px 0;font-size:15px;font-weight:700;letter-spacing:.04em;animation:mv 28s linear infinite;width:max-content}
@keyframes mv{to{transform:translateX(-50%)}}
@media (prefers-reduced-motion:reduce){.marq .track{animation:none}}

/* ---------- 섹션 공통 ---------- */
.section{padding:110px 0}
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:56px;gap:24px}
.sec-head h2{font-size:clamp(34px,4vw,58px);font-weight:900;letter-spacing:-.04em;line-height:1.12;margin-top:22px}
.sec-head .btn-line{flex-shrink:0}

/* ---------- 홈: 분야 행 ---------- */
.rows .row{
  display:grid;grid-template-columns:90px 1fr 1.1fr auto;align-items:center;gap:24px;
  padding:40px 0;border-bottom:1px solid var(--ink);transition:padding-left .3s;
}
.rows .row:first-child{border-top:1px solid var(--ink)}
.rows .row:hover{padding-left:14px}
.rows .row .no{font-size:14px;font-weight:700;color:var(--gray)}
.rows .row h3{font-size:clamp(26px,3vw,44px);font-weight:900;letter-spacing:-.035em}
.rows .row p{font-size:14.5px;color:#555;line-height:1.7}
.rows .row .ar{font-size:26px;font-weight:400;transition:transform .3s}
.rows .row:hover .ar{transform:translateX(10px)}

/* ---------- 사진 그리드 ---------- */
.shots{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.shots figure{position:relative;overflow:hidden;border:1px solid var(--ink)}
.shots img{width:100%;aspect-ratio:4/2.9;object-fit:cover;filter:grayscale(1);transition:filter .5s,transform .6s}
.shots figure:hover img{filter:grayscale(0);transform:scale(1.03)}
.shots figcaption{position:absolute;left:0;right:0;bottom:0;padding:40px 16px 14px;font-size:12.5px;font-weight:700;color:#fff;background:linear-gradient(transparent,rgba(17,17,17,.85))}

/* ---------- CTA 밴드 ---------- */
.cta-band{background:var(--ink);color:#fff}
.cta-band .in{max-width:var(--max-w);margin:0 auto;padding:120px var(--pad-x);display:flex;justify-content:space-between;align-items:center;gap:40px;flex-wrap:wrap}
.cta-band h2{font-size:clamp(36px,4.6vw,68px);font-weight:900;letter-spacing:-.04em;line-height:1.15}
.cta-band .btn-w{display:inline-block;background:#fff;color:var(--ink);font-size:16px;font-weight:800;padding:22px 52px;transition:all .2s}
.cta-band .btn-w:hover{background:var(--gray-3)}
.cta-band p{margin-top:20px;font-size:15px;color:#999;line-height:1.8}

/* ---------- 서브페이지 헤더 ---------- */
.page-head{border-bottom:1px solid var(--ink)}
.page-head .in{max-width:var(--max-w);margin:0 auto;padding:88px var(--pad-x) 72px}
.page-head h1{font-size:clamp(48px,6.4vw,96px);font-weight:900;letter-spacing:-.045em;line-height:1.06;margin-top:26px}
.page-head .desc{margin-top:30px;font-size:17px;line-height:1.85;color:#444;max-width:560px}

/* ---------- 소개 ---------- */
.about-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:72px;align-items:start}
.about-grid .pic{border:1px solid var(--ink);overflow:hidden;position:sticky;top:110px}
.about-grid .pic img{filter:grayscale(1);width:100%;object-fit:cover;transition:filter .5s}
.about-grid .pic:hover img{filter:grayscale(0)}
.story h2{font-size:clamp(26px,2.8vw,40px);font-weight:900;letter-spacing:-.035em;line-height:1.35;margin-bottom:28px}
.story p{font-size:16.5px;line-height:2;color:#333;margin-bottom:24px}
.story .hl{background:var(--ink);color:#fff;padding:2px 8px;font-weight:700}
.tl{margin-top:16px}
.tl .t-row{display:grid;grid-template-columns:120px 1fr;gap:20px;padding:22px 0;border-top:1px solid rgba(17,17,17,.16)}
.tl .t-row .k{font-size:13px;font-weight:800;letter-spacing:.08em;color:var(--gray)}
.tl .t-row h4{font-size:17px;font-weight:800}
.tl .t-row p{font-size:14px;color:#555;line-height:1.75;margin-top:6px}

/* ---------- 강의 카드 ---------- */
.lect-grid{display:grid;grid-template-columns:1fr 1fr;gap:0;border-top:1px solid var(--ink)}
.lect{border-bottom:1px solid var(--ink);padding:48px 44px 52px;position:relative;transition:background .3s}
.lect:nth-child(odd){border-right:1px solid var(--ink)}
.lect:hover{background:#F2F2EE}
.lect .no{font-size:13px;font-weight:700;color:var(--gray)}
.lect h3{font-size:clamp(26px,2.6vw,38px);font-weight:900;letter-spacing:-.03em;margin-top:16px}
.lect .aud{margin-top:18px;display:flex;flex-wrap:wrap;gap:8px}
.lect .aud span{font-size:12px;font-weight:700;border:1px solid var(--ink);padding:6px 14px}
.lect .cur{margin-top:24px}
.lect .cur .ct{font-size:12px;font-weight:700;letter-spacing:.22em;color:var(--gray);margin-bottom:12px}
.lect .cur li{font-size:14.5px;color:#444;line-height:1.6;padding:8px 0 8px 22px;position:relative;border-top:1px solid rgba(17,17,17,.1)}
.lect .cur li::before{content:"—";position:absolute;left:0;color:var(--gray)}

/* ---------- 실적 ---------- */
.pf-group{margin-bottom:88px}
.pf-group .g-head{display:flex;align-items:baseline;gap:20px;margin-bottom:10px}
.pf-group .g-head h2{font-size:clamp(28px,3.2vw,46px);font-weight:900;letter-spacing:-.035em}
.pf-group .g-head .cnt{font-size:14px;font-weight:700;color:var(--gray)}
.pf-rows .pf-row{display:grid;grid-template-columns:1fr 1.6fr;gap:24px;align-items:baseline;padding:24px 0;border-bottom:1px solid rgba(17,17,17,.16)}
.pf-rows .pf-row:first-child{border-top:1px solid var(--ink)}
.pf-rows .pf-row .org{font-size:19px;font-weight:800;letter-spacing:-.02em}
.pf-rows .pf-row .tp{font-size:15px;color:#555;line-height:1.7}

/* ---------- 문의 ---------- */
.contact-hero{border-bottom:1px solid var(--ink)}
.contact-hero .in{max-width:var(--max-w);margin:0 auto;padding:96px var(--pad-x) 88px;text-align:left}
.contact-hero .mail{display:inline-block;font-size:clamp(34px,5.4vw,76px);font-weight:900;letter-spacing:-.035em;margin-top:34px;border-bottom:4px solid var(--ink);padding-bottom:10px;word-break:break-all}
.contact-hero .acts{margin-top:44px;display:flex;gap:14px;flex-wrap:wrap}
.contact-hero .btn-ghost{display:inline-block;border:1px solid var(--ink);font-size:15px;font-weight:700;padding:17px 36px;transition:all .2s;cursor:pointer;background:none}
.contact-hero .btn-ghost:hover{background:var(--ink);color:#fff}
.c-grid{display:grid;grid-template-columns:1fr 1fr;gap:72px}
.c-grid h3{font-size:14px;font-weight:700;letter-spacing:.28em;color:var(--gray);margin-bottom:24px}
.c-grid .big{font-size:26px;font-weight:800;letter-spacing:-.02em}
.c-grid p{font-size:15px;line-height:1.9;color:#444;margin-top:14px}
.c-grid .chk li{font-size:16px;font-weight:600;padding:16px 0 16px 34px;border-bottom:1px solid rgba(17,17,17,.14);position:relative}
.c-grid .chk li::before{content:"✓";position:absolute;left:2px;font-weight:900}
.note{margin-top:26px;font-size:13.5px;color:var(--gray);line-height:1.8}

/* ---------- 진행 프로세스 ---------- */
.process{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.process .st{border-top:2px solid var(--ink);padding-top:18px}
.process .st .n{font-size:13px;font-weight:800;color:var(--gray)}
.process .st h4{font-size:19px;font-weight:800;margin-top:10px}
.process .st p{font-size:14px;color:#555;line-height:1.7;margin-top:8px}

/* ---------- FAQ ---------- */
.faq details{border-bottom:1px solid rgba(17,17,17,.16)}
.faq details:first-of-type{border-top:1px solid var(--ink)}
.faq summary{cursor:pointer;font-size:17px;font-weight:700;padding:22px 44px 22px 0;list-style:none;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);font-size:26px;font-weight:300}
.faq details[open] summary::after{content:"−"}
.faq .a{padding:0 0 26px;font-size:15px;line-height:1.9;color:#444;max-width:680px}

/* ---------- 인사이트 ---------- */
.blog-cards{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.blog-card{border:1px solid var(--ink);padding:44px 40px;display:block;transition:all .3s;position:relative}
.blog-card:hover{background:var(--ink);color:#fff}
.blog-card .bk{font-size:12px;font-weight:700;letter-spacing:.28em;color:var(--gray)}
.blog-card h3{font-size:clamp(24px,2.4vw,34px);font-weight:900;letter-spacing:-.03em;margin-top:16px}
.blog-card p{font-size:15px;line-height:1.8;margin-top:14px;color:#555;transition:color .3s}
.blog-card:hover p,.blog-card:hover .bk{color:#bbb}
.blog-card .go{display:inline-block;margin-top:26px;font-size:14px;font-weight:800;border-bottom:2px solid currentColor;padding-bottom:4px}
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chips span{border:1px solid var(--ink);padding:9px 20px;font-size:13.5px;font-weight:600}

/* ---------- 404 ---------- */
.nf{min-height:calc(100vh - 76px);display:flex;flex-direction:column;justify-content:center;padding:0 var(--pad-x)}
.nf .code{font-size:clamp(120px,18vw,280px);font-weight:900;letter-spacing:-.05em;line-height:1;color:transparent;-webkit-text-stroke:2px var(--ink)}
.nf h1{font-size:clamp(26px,3vw,40px);font-weight:900;letter-spacing:-.03em;margin-top:20px}
.nf p{font-size:16px;color:#555;margin-top:14px;line-height:1.8}

/* ---------- 리빌 ---------- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .8s ease,transform .8s ease}
.reveal.on{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

/* ---------- 반응형 ---------- */
@media(min-width:1500px){
  .hero .wm{display:block}
}
@media(max-width:1024px){
  :root{--pad-x:32px}
  .hero h1{font-size:clamp(48px,8.4vw,84px)}
  .shots{grid-template-columns:1fr 1fr}
}
@media(max-width:860px){
  :root{--pad-x:20px}
  .nav .in{height:64px}
  .nav ul{
    position:fixed;top:64px;left:0;right:0;background:var(--bg);flex-direction:column;gap:0;
    border-bottom:1px solid var(--ink);display:none;padding:8px 0 16px;
  }
  .nav.menu-open ul{display:flex}
  .nav ul li{width:100%;text-align:center}
  .nav ul a{display:block;padding:16px 0;font-size:16px}
  .nav ul a.c{margin:10px 20px 0}
  .nav .burger{display:block}
  .hero{grid-template-columns:1fr;min-height:0}
  .hero .txt{padding:44px var(--pad-x) 40px}
  .hero .foot{gap:32px;flex-wrap:wrap}
  .hero .pic{border-left:none;border-top:1px solid var(--ink);min-height:88vw}
  .section{padding:68px 0}
  .sec-head{flex-direction:column;align-items:flex-start}
  .rows .row{grid-template-columns:56px 1fr auto;gap:14px}
  .rows .row p{display:none}
  .shots{grid-template-columns:1fr}
  .cta-band .in{padding:72px var(--pad-x);flex-direction:column;align-items:flex-start}
  .about-grid{grid-template-columns:1fr;gap:44px}
  .about-grid .pic{position:static}
  .lect-grid{grid-template-columns:1fr}
  .lect{padding:36px var(--pad-x) 42px}
  .lect:nth-child(odd){border-right:none}
  .pf-rows .pf-row{grid-template-columns:1fr;gap:6px}
  .c-grid{grid-template-columns:1fr;gap:48px}
  .process{grid-template-columns:1fr 1fr;gap:28px 18px}
  .blog-cards{grid-template-columns:1fr}
  .footer .in{grid-template-columns:1fr;gap:32px}
}