/* ============================================================
   써니켐 (Sunnychem) — main styles
   Palette: ink #231F20 · bronze #BA8D65 · deep bronze #8F6B4A / #70553D
            panel #F8F4F0 · gray #535455 · muted #9B958E · line #EEE9E3
   Fonts:  Pretendard (KR/body) · Jost (display latin)
   ============================================================ */
:root{
  --ink:#231F20;
  --ink2:#282828;
  --bronze:#BA8D65;
  --bronze-d:#8F6B4A;
  --bronze-dd:#70553D;
  --panel:#F8F4F0;
  --gray:#535455;
  --muted:#9B958E;
  --line:#EEE9E3;
  --line2:#E0D6CB;
  --maxw:1476px;
  --pad:52px;
}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;background:#fff;}
html{scroll-behavior:smooth;}
body{
  font-family:'Pretendard',sans-serif;color:#111;line-height:1.3;
  -webkit-font-smoothing:antialiased;word-break:keep-all;overflow-x:hidden;
}
a{text-decoration:none;color:inherit;}
ul{margin:0;padding:0;list-style:none;}
img{display:block;max-width:100%;}
em{font-style:normal;}
.disp{
  margin:0;font-family:'Jost',sans-serif;font-weight:500;
  font-size:clamp(48px,4.2vw,80px);line-height:1.1;color:#111;
  text-transform:uppercase;
}
.disp--light{color:#fff;}
.mask{display:block;overflow:hidden;}
.mask > i{display:block;font-style:normal;}

/* ---------- keyframes ---------- */
@keyframes hjRise{from{transform:translateY(110%)}to{transform:translateY(0)}}
@keyframes hjFade{from{opacity:0}to{opacity:1}}
@keyframes hjFadeUp{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}
@keyframes hjZoomOut{from{transform:scale(1.2)}to{transform:scale(1)}}
@keyframes hjBar{from{transform:scaleX(0)}to{transform:scaleX(1)}}
@keyframes hjMarquee{from{transform:translateX(0)}to{transform:translateX(-50%)}}
@keyframes hjSlideIn{from{transform:translateX(120%);opacity:0}to{transform:translateX(0);opacity:1}}
@keyframes scrollDot{0%{transform:translateY(0);opacity:0}30%{opacity:1}100%{transform:translateY(26px);opacity:0}}

/* ============================================================
   INTRO
   ============================================================ */
.intro{
  position:fixed;inset:0;z-index:300;background:var(--ink);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:26px;
  transition:opacity .8s ease;
}
.intro.is-hidden{opacity:0;}
.intro.is-gone{display:none;}
.intro__logo{
  font-family:'Jost',sans-serif;font-weight:500;font-size:26px;letter-spacing:8px;
  color:#fff;text-transform:uppercase;animation:hjFadeUp .9s cubic-bezier(.22,1,.36,1) both;
}
.intro__bar{width:160px;height:1px;background:rgba(255,255,255,.16);overflow:hidden;}
.intro__bar span{display:block;width:100%;height:100%;background:var(--bronze);transform-origin:left;animation:hjBar 1.3s cubic-bezier(.65,0,.35,1) .2s both;}
.intro__sub{font-size:13px;letter-spacing:1px;color:rgba(255,255,255,.5);animation:hjFadeUp .9s cubic-bezier(.22,1,.36,1) .25s both;}

/* ============================================================
   HEADER
   ============================================================ */
.header{
  position:fixed;top:0;left:0;right:0;z-index:100;color:#fff;background:transparent;
  transition:background .4s ease,color .4s ease,box-shadow .4s ease;
}
.header.is-solid{background:#fff;color:#111;box-shadow:0 1px 0 var(--line);}
.header__inner{
  max-width:1776px;margin:0 auto;padding:0 var(--pad);height:96px;
  display:flex;align-items:center;justify-content:space-between;gap:40px;
}
.brand{font-family:'Jost',sans-serif;font-weight:600;font-size:22px;letter-spacing:5px;text-transform:uppercase;}
.gnb{display:flex;align-items:center;gap:64px;height:100%;}
.gnb a{font-size:17px;font-weight:600;letter-spacing:-.3px;height:100%;display:flex;align-items:center;transition:color .25s;}
.gnb a:hover{color:var(--bronze);}
.header__actions{display:flex;align-items:center;gap:20px;}
.btn-quote{font-size:14px;font-weight:600;padding:10px 22px;border:1px solid currentColor;transition:all .3s;}
.btn-quote:hover{background:var(--bronze);border-color:var(--bronze);color:#fff;}
.lang{display:flex;gap:10px;font-family:'Jost',sans-serif;font-size:13px;letter-spacing:1px;}
.lang span{opacity:.35;}
.lang--off{opacity:.5;}

/* mega panel */
.mega{overflow:hidden;height:0;transition:height .45s cubic-bezier(.65,0,.35,1);background:#fff;color:#111;border-top:1px solid var(--line);}
.mega__inner{max-width:1776px;margin:0 auto;padding:40px var(--pad) 56px;display:grid;grid-template-columns:repeat(4,1fr);gap:40px;}
.mega__label{font-family:'Jost',sans-serif;font-size:13px;letter-spacing:3px;color:var(--bronze);text-transform:uppercase;margin-bottom:20px;}
.mega__col ul{display:flex;flex-direction:column;gap:14px;}
.mega__col a{color:var(--gray);font-size:15px;transition:color .25s;}
.mega__col a:hover{color:var(--bronze);}

/* hamburger */
.nav-toggle{display:none;width:44px;height:44px;background:none;border:0;cursor:pointer;padding:10px;}
.nav-toggle span{display:block;height:2px;background:currentColor;border-radius:2px;transition:transform .3s,opacity .3s;}
.nav-toggle span+span{margin-top:6px;}
body.menu-open .nav-toggle span:nth-child(1){transform:translateY(8px) rotate(45deg);}
body.menu-open .nav-toggle span:nth-child(2){opacity:0;}
body.menu-open .nav-toggle span:nth-child(3){transform:translateY(-8px) rotate(-45deg);}

/* mobile menu */
.mmenu{
  position:fixed;inset:0;z-index:95;background:var(--ink);color:#fff;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  opacity:0;visibility:hidden;transform:translateY(-8px);transition:opacity .35s,transform .35s,visibility .35s;
  padding:0 32px;
}
body.menu-open .mmenu{opacity:1;visibility:visible;transform:none;}
.mmenu__nav{display:flex;flex-direction:column;align-items:center;gap:8px;}
.mmenu__nav a{font-size:30px;font-weight:600;padding:10px 0;letter-spacing:-.5px;}
.mmenu__nav a:hover{color:var(--bronze);}
.mmenu__cta{margin-top:22px;padding:16px 44px;background:var(--bronze);color:#fff;font-weight:600;font-size:16px;}
.mmenu__info{margin-top:26px;display:flex;flex-direction:column;align-items:center;gap:6px;font-family:'Jost',sans-serif;font-size:14px;color:rgba(255,255,255,.6);}

/* ============================================================
   HERO
   ============================================================ */
.hero{position:relative;height:100vh;min-height:640px;background:var(--ink);overflow:hidden;}
.hero__bg{position:absolute;inset:0;animation:hjZoomOut 2.8s cubic-bezier(.22,1,.36,1) both;}
.hero__video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
.hero__overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(35,31,32,.5) 0%,rgba(35,31,32,.2) 45%,rgba(35,31,32,.65) 100%);}
.hero__txt{
  position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:24px;z-index:2;padding:0 24px;will-change:transform,opacity;text-align:center;
}
.hero__eyebrow{font-family:'Jost',sans-serif;font-size:clamp(20px,3vw,48px);font-weight:500;letter-spacing:6px;color:#fff;text-transform:uppercase;animation:hjFade 1s ease .2s both;}
.hero__title{display:flex;justify-content:center;color:#fff;font-family:'Jost',sans-serif;font-weight:500;font-size:clamp(64px,11.5vw,196px);line-height:1;letter-spacing:.06em;text-transform:uppercase;}
.hero__title span{display:inline-block;overflow:hidden;}
.hero__title i{display:inline-block;font-style:normal;animation:hjRise .95s cubic-bezier(.22,1,.36,1) var(--d) both;}
.hero__lead{margin:6px 0 0;color:#fff;font-weight:400;letter-spacing:-.5px;line-height:1.65;font-size:clamp(16px,2.1vw,26px);animation:hjFade 1.2s ease 1.5s both;}
.hero__lead em{font-weight:600;color:var(--bronze);}
.hero__scroll{position:absolute;left:50%;bottom:34px;transform:translateX(-50%);z-index:3;color:rgba(255,255,255,.75);font-family:'Jost',sans-serif;font-size:12px;letter-spacing:2px;text-transform:uppercase;display:flex;flex-direction:column;align-items:center;gap:12px;animation:hjFade 1s ease 2s both;}
.hero__scroll span{width:1px;height:44px;background:rgba(255,255,255,.35);position:relative;overflow:hidden;}
.hero__scroll span::after{content:"";position:absolute;left:0;top:0;width:100%;height:14px;background:var(--bronze);animation:scrollDot 1.8s ease-in-out infinite;}

/* ============================================================
   ABOUT
   ============================================================ */
.about{padding:200px var(--pad) 240px;background:#fff;}
.about__inner{max-width:var(--maxw);margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:start;}
.about__text p{margin:32px 0 0;font-size:20px;line-height:1.6;letter-spacing:-.8px;color:#111;}
.btn-dark{display:inline-block;margin-top:48px;padding:15px 40px;background:var(--ink);color:#fff;font-size:17px;font-weight:600;letter-spacing:-.4px;transition:background .3s;}
.btn-dark:hover{background:var(--bronze);}
.about__media{position:relative;padding-bottom:150px;}
.about__img{width:100%;max-width:576px;height:640px;margin-left:auto;overflow:hidden;}
.about__img img{width:100%;height:100%;object-fit:cover;}
.about__card{
  position:absolute;left:-40px;bottom:0;width:min(450px,92%);padding:48px;
  background:rgba(248,244,240,.9);backdrop-filter:blur(20px);box-shadow:0 30px 70px -30px rgba(35,31,32,.35);
}
.about__card h3{margin:0;font-size:24px;font-weight:600;letter-spacing:-.96px;color:var(--ink);}
.about__card-line{width:48px;height:1px;background:var(--ink);margin:28px 0;}
.about__card dl{margin:0;display:grid;grid-template-columns:auto 1fr;gap:16px 28px;font-size:16px;line-height:1.55;letter-spacing:-.3px;}
.about__card dt{font-family:'Jost',sans-serif;font-size:13px;letter-spacing:2px;color:var(--bronze-d);text-transform:uppercase;padding-top:2px;}
.about__card dd{margin:0;color:var(--ink);font-weight:500;}

/* ============================================================
   MARQUEE
   ============================================================ */
.marquee{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);overflow:hidden;}
.marquee__track{display:flex;width:max-content;animation:hjMarquee 30s linear infinite;}
.marquee__group{display:flex;align-items:center;gap:56px;padding:48px 28px;white-space:nowrap;}
.marquee span{font-family:'Jost',sans-serif;font-size:clamp(38px,6vw,64px);font-weight:500;text-transform:uppercase;line-height:1;}
.m-out{color:transparent;-webkit-text-stroke:1px var(--ink);}
.m-fill{color:var(--ink);}
.marquee b{width:10px;height:10px;background:var(--bronze);border-radius:50%;flex:none;}

/* ============================================================
   PRODUCT
   ============================================================ */
.product{padding:200px var(--pad);background:var(--ink2);overflow:hidden;}
.product__inner{max-width:1776px;margin:0 auto;}
.product__head{display:flex;justify-content:space-between;align-items:flex-end;gap:40px;flex-wrap:wrap;margin-bottom:56px;}
.product__head p{margin:0;font-size:20px;line-height:1.6;letter-spacing:-.8px;color:#fff;text-align:right;}
.product__grid{display:grid;grid-template-columns:1fr 2fr 1fr;grid-auto-rows:400px;gap:24px;}
.product__grid .card--wide{grid-column:1 / span 2;}
.card{position:relative;overflow:hidden;display:block;}
.card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
.card__grad,.icard__grad{position:absolute;inset:0;background:linear-gradient(180deg,rgba(35,31,32,0) 30%,rgba(35,31,32,.72) 100%);pointer-events:none;}
.card__cap{position:absolute;left:0;bottom:0;padding:48px;display:flex;flex-direction:column;z-index:1;}
.card__cap b{font-family:'Jost',sans-serif;font-size:clamp(28px,3vw,40px);font-weight:500;color:#fff;text-transform:uppercase;line-height:1.1;}
.card__cap em{margin-top:8px;color:rgba(255,255,255,.85);font-size:19px;font-weight:500;letter-spacing:-.5px;}

/* ============================================================
   INDUSTRY
   ============================================================ */
.industry{padding:200px var(--pad);background:#fff;}
.industry__inner{max-width:var(--maxw);margin:0 auto;}
.industry__head{margin-bottom:50px;}
.industry__head p{margin:32px 0 0;font-size:20px;line-height:1.6;letter-spacing:-.8px;color:#111;max-width:640px;}
.industry__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.icard{position:relative;height:420px;overflow:hidden;}
.icard img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
.icard__cap{position:absolute;left:0;bottom:0;padding:40px;z-index:1;}
.icard__cap span{display:block;font-family:'Jost',sans-serif;font-size:14px;letter-spacing:3px;color:var(--bronze);text-transform:uppercase;margin-bottom:10px;}
.icard__cap strong{font-size:24px;font-weight:600;color:#fff;letter-spacing:-.8px;}

/* ============================================================
   CONTACT
   ============================================================ */
.contact{position:relative;padding:180px var(--pad);background:var(--ink);overflow:hidden;}
.contact__bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.4;}
.contact__veil{position:absolute;inset:0;background:rgba(35,31,32,.55);}
.contact__inner{position:relative;max-width:var(--maxw);margin:0 auto;text-align:center;color:#fff;}
.contact__inner .disp{font-size:clamp(44px,4vw,72px);}
.contact__inner p{margin:36px 0 0;font-size:clamp(17px,2vw,21px);line-height:1.6;letter-spacing:-.8px;color:rgba(255,255,255,.9);}
.contact__meta{margin-top:32px;display:flex;justify-content:center;gap:40px;flex-wrap:wrap;font-family:'Jost',sans-serif;font-size:18px;color:rgba(255,255,255,.85);}
.btn-ghost{display:inline-block;margin-top:48px;padding:16px 48px;color:#fff;font-size:18px;font-weight:600;letter-spacing:-.4px;border:1px solid #fff;background:transparent;transition:background .3s,border-color .3s,color .3s;}
.btn-ghost:hover{background:var(--bronze);border-color:var(--bronze);}

/* ============================================================
   LOCATION
   ============================================================ */
.location{padding:200px var(--pad) 220px;background:#fff;}
.location__inner{max-width:var(--maxw);margin:0 auto;}
.location__head{display:flex;justify-content:space-between;align-items:flex-end;gap:32px;flex-wrap:wrap;margin-bottom:64px;}
.location__head p{margin:32px 0 0;font-size:20px;line-height:1.6;letter-spacing:-.8px;color:#111;}
.location__links{display:flex;gap:12px;flex-wrap:wrap;}
.lk{display:inline-flex;align-items:center;gap:10px;padding:13px 28px;font-size:16px;font-weight:700;transition:background .3s;}
.lk--kakao{background:#FEE500;color:#191919;}
.lk--kakao:hover{background:#f5d900;}
.lk--naver{background:#03C75A;color:#fff;}
.lk--naver:hover{background:#02b053;}
.lk--naver b{font-family:'Jost',sans-serif;font-weight:600;}
.location__map{margin-bottom:80px;border:1px solid var(--line2);background:#fff;}
.location__map iframe{display:block;width:100%;height:480px;border:0;}
.location__map-foot{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;padding:18px 24px;border-top:1px solid var(--line2);}
.location__map-foot > span:first-child{font-size:15px;color:var(--gray);letter-spacing:-.3px;}
.location__map-links{display:flex;gap:24px;flex-wrap:wrap;}
.foot-kakao{font-size:14px;font-weight:600;color:#F2A900;}
.foot-kakao:hover{color:#d99700;}
.foot-naver{font-size:14px;font-weight:600;color:#03C75A;}
.foot-naver:hover{color:#02b053;}
.location__info{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.linfo{border-top:2px solid var(--ink);padding:32px 0 40px;}
.linfo__label{font-family:'Jost',sans-serif;font-size:14px;letter-spacing:3px;color:var(--bronze-d);text-transform:uppercase;margin-bottom:22px;}
.linfo p{margin:0;font-size:21px;font-weight:500;line-height:1.55;letter-spacing:-.7px;color:var(--ink);}
.linfo a:hover{color:var(--bronze);}

/* ============================================================
   FOOTER
   ============================================================ */
.footer{background:#fff;border-top:1px solid var(--line);padding:72px var(--pad) 60px;color:var(--gray);}
.footer__inner{max-width:var(--maxw);margin:0 auto;display:flex;flex-direction:column;gap:32px;}
.footer__top{display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap;}
.footer__brand{font-family:'Jost',sans-serif;font-weight:600;font-size:18px;letter-spacing:4px;color:#111;text-transform:uppercase;}
.to-top{width:46px;height:46px;border:1px solid #D8D2CB;background:#fff;color:var(--ink);font-size:16px;cursor:pointer;transition:all .3s;}
.footer__top .to-top:hover{background:var(--ink);color:#fff;border-color:var(--ink);}
.footer__meta{display:flex;flex-wrap:wrap;gap:10px 32px;font-size:14px;line-height:1.5;letter-spacing:-.28px;}
.footer__copy{margin:0;font-size:12px;letter-spacing:.5px;color:var(--muted);}

/* ============================================================
   QUICK MENU
   ============================================================ */
.quick{position:fixed;right:0;bottom:120px;z-index:90;width:88px;display:flex;flex-direction:column;animation:hjSlideIn .8s cubic-bezier(.22,1,.36,1) 2.4s both;}
.quick__q{display:flex;align-items:center;justify-content:center;height:80px;background:var(--ink);color:#fff;font-size:13px;font-weight:600;line-height:1.4;text-align:center;transition:background .3s;}
.quick__q:hover{background:var(--bronze-dd);}
.quick__top{height:56px;background:var(--bronze-dd);border:none;border-top:1px solid rgba(255,255,255,.12);color:#fff;font-size:13px;font-weight:600;cursor:pointer;transition:background .3s;}
.quick__top:hover{background:var(--bronze);}

/* reveal defaults (JS adds inline transition + toggles) */
[data-reveal]{opacity:1;}

/* image hover zoom */
.zoom{will-change:transform;}
.zoom img{transition:transform 1.2s cubic-bezier(.22,1,.36,1);}
.zoom:hover img{transform:scale(1.06);}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width:1200px){
  :root{--pad:40px;}
  .about{padding:150px 40px 200px;}
  .product,.industry,.location{padding:150px 40px;}
  .contact{padding:150px 40px;}
  .about__inner{gap:56px;}
}

@media (max-width:1024px){
  .gnb{display:none;}
  .btn-quote,.lang{display:none;}
  .nav-toggle{display:block;}
  .mega{display:none;}
  .header__inner{height:76px;}
  .product__grid{grid-template-columns:1fr 1fr;grid-auto-rows:340px;}
  .product__grid .card--wide{grid-column:1 / span 2;}
  .about__inner{grid-template-columns:1fr;gap:40px;}
  .about__media{padding-bottom:0;max-width:576px;}
  .about__img{margin:0;height:auto;aspect-ratio:9/10;}
  .about__card{position:static;width:100%;margin-top:-60px;margin-left:auto;}
  .product__head p,.industry__head p{text-align:left;}
}

@media (max-width:820px){
  :root{--pad:24px;}
  .about{padding:110px 24px 130px;}
  .product,.industry,.location{padding:110px 24px;}
  .contact{padding:120px 24px;}
  .industry__grid{grid-template-columns:1fr;}
  .icard{height:360px;}
  .location__map iframe{height:360px;}
  .marquee__group{padding:32px 20px;gap:36px;}
}

@media (max-width:640px){
  .header__inner{padding:0 20px;}
  .product__grid{grid-template-columns:1fr;grid-auto-rows:300px;}
  .product__grid .card--wide{grid-column:auto;}
  .about__text p{font-size:18px;}
  .card__cap,.icard__cap{padding:32px;}
  .location__info{grid-template-columns:1fr;}
  .linfo{padding:28px 0 32px;}
  .location__head{margin-bottom:44px;}
  .location__map{margin-bottom:56px;}
  .quick{width:64px;bottom:90px;}
  .quick__q{height:64px;font-size:12px;}
  .contact__meta{gap:20px;font-size:16px;}
  .about__card{padding:36px;}
}

@media (max-width:380px){
  .hero__title{font-size:56px;}
}

/* accessibility: reduce motion */
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;}
  html{scroll-behavior:auto;}
  .marquee__track{animation:none;}
}