/* ============================================
   단비금속인테리어 — Danbi Metal Interior
   Concept: 밝고 청량한 화이트 + 스틸 블루 포인트
   ============================================ */
:root{
  --white:#ffffff;
  --snow:#f6f8fb;
  --tint:#eef3f9;
  --line:#e4e9f0;
  --dark:#12161c;
  --text:#232a33;
  --text-light:#6d7683;
  --steel:#2563b0;
  --steel-deep:#1a4c8c;
  --sky:#dbeafe;
  --radius:18px;
  --shadow-sm:0 4px 16px rgba(18,32,53,.06);
  --shadow:0 16px 48px rgba(18,32,53,.10);
  --shadow-lg:0 28px 72px rgba(18,32,53,.16);
  --ease:cubic-bezier(.22,.61,.36,1);
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'Pretendard Variable',Pretendard,-apple-system,'Malgun Gothic',sans-serif;
  color:var(--text);
  background:var(--white);
  line-height:1.7;
  word-break:keep-all;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%}
a{text-decoration:none;color:inherit}
::selection{background:var(--sky);color:var(--steel-deep)}
.container{max-width:1180px;margin:0 auto;padding:0 24px}
.center{text-align:center}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 34px;border-radius:50px;font-size:15px;font-weight:600;
  transition:all .35s var(--ease);cursor:pointer;border:0;letter-spacing:-.01em;
  position:relative;overflow:hidden;
}
.btn-primary{background:var(--steel);color:#fff;box-shadow:0 8px 22px rgba(37,99,176,.28)}
.btn-primary:hover{background:var(--steel-deep);transform:translateY(-3px);box-shadow:0 14px 30px rgba(37,99,176,.36)}
.btn-outline{border:1.5px solid var(--line);color:var(--text);background:var(--white)}
.btn-outline:hover{border-color:var(--steel);color:var(--steel);transform:translateY(-3px);box-shadow:var(--shadow-sm)}
.btn-light{background:#fff;color:var(--dark)}
.btn-light:hover{transform:translateY(-3px);box-shadow:0 14px 34px rgba(0,0,0,.32)}
.btn-sm{padding:9px 22px;font-size:13.5px}
.btn-lg{padding:16px 42px;font-size:16px}
.btn-block{width:100%}
.btn-insta{
  background:linear-gradient(45deg,#405de6,#833ab4,#e1306c,#fd8d32);
  color:#fff;box-shadow:0 10px 26px rgba(131,58,180,.3);
}
.btn-insta:hover{transform:translateY(-3px);box-shadow:0 16px 34px rgba(131,58,180,.4)}

/* ---------- Header ---------- */
.header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(255,255,255,.8);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(228,233,240,.7);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:76px}
.logo{font-size:20px;font-weight:800;color:var(--dark);letter-spacing:-.02em}
.logo span{color:var(--steel)}
.nav{display:flex;gap:38px}
.nav a{color:var(--text-light);font-size:15px;font-weight:500;transition:color .25s;position:relative;padding:6px 0}
.nav a:hover{color:var(--dark)}
.nav a.active{color:var(--steel);font-weight:700}
.nav a.active::after{content:'';position:absolute;left:0;right:0;bottom:-4px;height:2px;background:var(--steel);border-radius:2px}
.header-cta{background:var(--steel);color:#fff}
.header-cta:hover{background:var(--steel-deep);box-shadow:0 8px 20px rgba(37,99,176,.3)}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{width:24px;height:2px;background:var(--dark);border-radius:2px;transition:all .3s}

/* ---------- Hero (밝은 청량 콘셉트) ---------- */
.hero{
  position:relative;padding:190px 0 110px;overflow:hidden;
  background:
    radial-gradient(900px 500px at 85% -10%, var(--tint) 0%, transparent 60%),
    radial-gradient(700px 480px at -10% 110%, #edf4fd 0%, transparent 55%),
    linear-gradient(180deg,#fbfcfe 0%,var(--white) 100%);
}
.hero-deco{position:absolute;border-radius:50%;filter:blur(70px);opacity:.5;pointer-events:none}
.hero-deco-1{width:420px;height:420px;background:#d5e6fb;top:-140px;right:-80px;animation:float 9s ease-in-out infinite}
.hero-deco-2{width:300px;height:300px;background:#e8f1fc;bottom:-120px;left:-60px;animation:float 11s ease-in-out infinite reverse}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(26px)}}

.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:center}
.hero-tag{
  display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.32em;
  color:var(--steel);margin-bottom:22px;text-transform:uppercase;
  padding:8px 18px;border:1px solid var(--sky);border-radius:50px;background:rgba(219,234,254,.35);
}
.hero h1{font-size:clamp(34px,4.8vw,56px);font-weight:800;line-height:1.26;letter-spacing:-.035em;margin-bottom:24px;color:var(--dark)}
.hero h1 em{
  font-style:normal;
  background:linear-gradient(120deg,var(--steel) 20%,#4d8ed6 80%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.hero h1 em .wi{
  background:linear-gradient(120deg,var(--steel) 20%,#4d8ed6 80%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.hero-sub{font-size:clamp(15px,1.5vw,17.5px);color:var(--text-light);margin-bottom:38px;line-height:1.85}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:38px}
.hero-points{display:flex;gap:22px;flex-wrap:wrap;list-style:none}
.hero-points li{font-size:14px;font-weight:600;color:var(--text-light);display:flex;align-items:center;gap:8px}
.hero-points li::before{
  content:'';width:18px;height:18px;flex-shrink:0;border-radius:50%;
  background:var(--sky) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%232563b0' stroke-width='3.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 13l4 4L19 7'/%3E%3C/svg%3E") center/10px no-repeat;
}

.hero-visual{position:relative;min-height:480px}
.hero-photo{border-radius:22px;overflow:hidden;box-shadow:var(--shadow-lg);background:var(--tint)}
.hero-photo img{width:100%;height:100%;object-fit:cover}
.hero-photo-main{position:absolute;top:0;right:0;width:78%;aspect-ratio:4/5;animation:heroIn 1s var(--ease) both .15s}
.hero-photo-sub{
  position:absolute;bottom:8px;left:0;width:46%;aspect-ratio:1/1;
  border:6px solid #fff;animation:heroIn 1s var(--ease) both .35s;
}
.hero-badge{
  position:absolute;top:34px;left:2%;z-index:3;
  background:rgba(255,255,255,.86);backdrop-filter:blur(12px);
  border:1px solid rgba(228,233,240,.9);border-radius:16px;
  padding:16px 22px;box-shadow:var(--shadow);
  animation:heroIn 1s var(--ease) both .55s;
}
.hero-badge strong{display:block;font-size:15.5px;color:var(--dark);letter-spacing:-.01em}
.hero-badge span{font-size:12.5px;color:var(--text-light)}
@keyframes heroIn{from{opacity:0;transform:translateY(34px)}to{opacity:1;transform:none}}

/* ---------- Marquee (대형 아웃라인 키네틱 타이포) ---------- */
.marquee{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:26px 0;overflow:hidden;background:var(--white);white-space:nowrap;
}
.marquee-track{display:inline-flex;align-items:center;gap:44px;animation:marquee 30s linear infinite;padding-right:44px}
.marquee:hover .marquee-track{animation-play-state:paused}
.marquee span{
  font-size:clamp(30px,4vw,52px);font-weight:800;letter-spacing:.04em;line-height:1;
  text-transform:uppercase;color:transparent;-webkit-text-stroke:1.3px #b9c6d6;
  transition:color .4s,-webkit-text-stroke-color .4s;
}
.marquee span:hover{color:var(--steel);-webkit-text-stroke-color:var(--steel)}
.marquee i{font-style:normal;font-size:11px;color:var(--steel);opacity:.6}
@keyframes marquee{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ---------- Page hero (서브페이지) ---------- */
.page-hero{
  position:relative;padding:176px 0 84px;overflow:hidden;
  background:
    radial-gradient(800px 420px at 85% -20%, var(--tint) 0%, transparent 60%),
    linear-gradient(180deg,#fbfcfe 0%,var(--white) 100%);
}
.page-hero .container{position:relative;z-index:2}
.page-hero h1{font-size:clamp(32px,4.2vw,46px);font-weight:800;letter-spacing:-.03em;color:var(--dark);margin-bottom:14px}
.page-hero .hero-tag{margin-bottom:18px}
.page-hero-sub{color:var(--text-light);font-size:16px}

/* ---------- Sections ---------- */
.section{padding:120px 0}
.section-tag{font-size:12.5px;font-weight:700;letter-spacing:.3em;color:var(--steel);margin-bottom:16px;text-transform:uppercase}
.section-title{font-size:clamp(26px,3.4vw,38px);font-weight:800;letter-spacing:-.025em;margin-bottom:56px;line-height:1.4;color:var(--dark)}
.section-tint{background:linear-gradient(180deg,var(--snow) 0%,#f2f6fb 100%)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap}
.section-head .section-title{margin-bottom:40px}
.section-head .btn{margin-bottom:48px}

/* ---------- Services ---------- */
.service-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.service-card{
  background:var(--white);border:1px solid var(--line);
  border-radius:var(--radius);padding:40px 30px;
  transition:transform .4s var(--ease),box-shadow .4s var(--ease),border-color .4s;
}
.service-card:hover{transform:translateY(-10px);box-shadow:var(--shadow);border-color:transparent}
.service-icon{
  width:58px;height:58px;border-radius:16px;margin-bottom:24px;
  background:linear-gradient(135deg,var(--tint),var(--sky));
  display:flex;align-items:center;justify-content:center;color:var(--steel);
  transition:transform .4s var(--ease);
}
.service-icon svg{width:28px;height:28px}
.service-card:hover .service-icon{transform:scale(1.08) rotate(-4deg)}
.service-card h3{font-size:19px;font-weight:700;margin-bottom:12px;letter-spacing:-.01em;color:var(--dark)}
.service-card p{font-size:14.5px;color:var(--text-light);line-height:1.8}

/* ---------- Strengths ---------- */
.strength-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.strength{
  position:relative;background:var(--white);border:1px solid var(--line);
  border-radius:var(--radius);padding:38px 36px;overflow:hidden;
  transition:box-shadow .4s var(--ease),transform .4s var(--ease);
}
.strength:hover{box-shadow:var(--shadow);transform:translateY(-6px)}
.strength em{
  position:absolute;top:18px;right:26px;font-style:normal;
  font-size:44px;font-weight:800;color:var(--tint);letter-spacing:-.04em;line-height:1;
  transition:color .4s;
}
.strength:hover em{color:var(--sky)}
.strength strong{display:block;font-size:18.5px;color:var(--dark);margin-bottom:10px;letter-spacing:-.01em}
.strength p{font-size:14.5px;color:var(--text-light);line-height:1.8;max-width:88%}

/* ---------- Works preview / Gallery ---------- */
.works-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.work{position:relative;border-radius:var(--radius);overflow:hidden;aspect-ratio:4/3;background:var(--tint);box-shadow:var(--shadow-sm)}
.work img{width:100%;height:100%;object-fit:cover;transition:transform .7s var(--ease)}
.work:hover img{transform:scale(1.07)}
.work-overlay{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  background:rgba(18,22,28,.4);backdrop-filter:blur(2px);
  color:#fff;font-size:15px;font-weight:700;letter-spacing:.02em;
  opacity:0;transition:opacity .4s var(--ease);
}
.work:hover .work-overlay{opacity:1}

.portfolio-desc{color:var(--text-light);margin-bottom:44px;font-size:16px}
.gallery{columns:3;column-gap:18px}
.gallery-item{
  border-radius:var(--radius);overflow:hidden;cursor:zoom-in;
  background:var(--tint);box-shadow:var(--shadow-sm);position:relative;
  break-inside:avoid;margin-bottom:18px;
}
.gallery-item img{width:100%;height:auto}
.gallery-item::after{
  content:'+';position:absolute;right:14px;bottom:12px;width:34px;height:34px;
  border-radius:50%;background:rgba(255,255,255,.85);backdrop-filter:blur(6px);
  color:var(--steel);font-size:21px;font-weight:600;line-height:34px;text-align:center;
  opacity:0;transform:scale(.6);transition:all .35s var(--ease);
}
.gallery-item:hover::after{opacity:1;transform:scale(1)}
.gallery-item img{transition:transform .7s var(--ease)}
.gallery-item:hover img{transform:scale(1.05)}

/* ---------- Lightbox ---------- */
.lightbox{
  position:fixed;inset:0;z-index:200;background:rgba(13,16,20,.94);
  display:none;align-items:center;justify-content:center;
}
.lightbox.open{display:flex;animation:fadeIn .25s ease}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
.lightbox img{max-width:88vw;max-height:86vh;border-radius:10px;object-fit:contain}
.lightbox button{
  position:absolute;background:rgba(255,255,255,.08);border:0;color:rgba(255,255,255,.8);
  font-size:26px;cursor:pointer;width:52px;height:52px;border-radius:50%;
  transition:all .25s;line-height:1;backdrop-filter:blur(4px);
}
.lightbox button:hover{color:#fff;background:rgba(255,255,255,.18)}
.lightbox-close{top:22px;right:26px;font-size:30px}
.lightbox-prev{left:20px;top:50%;transform:translateY(-50%)}
.lightbox-next{right:20px;top:50%;transform:translateY(-50%)}

/* ---------- Showcase (풀블리드 패럴랙스) ---------- */
.showcase{
  position:relative;min-height:480px;max-height:720px;display:flex;align-items:center;
  color:#fff;overflow:hidden;text-align:center;
}
.showcase-bg{
  position:absolute;left:0;right:0;top:-14%;bottom:-14%;
  background-size:cover;background-position:center;will-change:transform;
}
.showcase-bg::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(rgba(13,20,30,.5),rgba(13,20,30,.44));
}
.showcase-inner{position:relative;z-index:2;padding:110px 24px}
.showcase-tag{
  font-size:12.5px;font-weight:700;letter-spacing:.34em;color:#9cc3f0;
  margin-bottom:22px;text-transform:uppercase;
}
.showcase h2{
  font-size:clamp(27px,4vw,46px);font-weight:800;letter-spacing:-.025em;
  line-height:1.45;margin-bottom:20px;
}
.showcase-sub{color:rgba(255,255,255,.72);font-size:16.5px}

/* ---------- Instagram ---------- */
.insta .section-title{margin-bottom:14px}
.insta-handle{font-size:19px;color:var(--steel);font-weight:700;margin-bottom:34px;letter-spacing:.02em}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:linear-gradient(120deg,#122036 0%,#1a3a63 55%,var(--steel-deep) 100%);
  padding:78px 0;color:#fff;
}
.cta-band::before{
  content:'';position:absolute;width:480px;height:480px;border-radius:50%;
  background:rgba(77,142,214,.18);filter:blur(80px);top:-200px;right:-100px;
}
.cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta-band h2{font-size:clamp(22px,3vw,31px);font-weight:800;letter-spacing:-.02em;margin-bottom:8px}
.cta-band p{color:rgba(255,255,255,.65);font-size:15.5px}

/* ---------- About ---------- */
.about-cols{display:grid;grid-template-columns:1.1fr .9fr;gap:70px;align-items:center}
.about-text h2{font-size:clamp(26px,3.2vw,36px);font-weight:800;letter-spacing:-.025em;line-height:1.45;margin-bottom:30px;color:var(--dark)}
.about-text p{color:var(--text-light);font-size:15.5px;margin-bottom:18px;line-height:1.9}
.about-img img{border-radius:22px;box-shadow:var(--shadow-lg);aspect-ratio:4/5;object-fit:cover;width:100%}
.about-img img.logo-img{aspect-ratio:1/1;object-fit:contain;background:#fff;border:1px solid var(--line)}

.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:step}
.process-step{
  background:var(--white);border-radius:var(--radius);padding:34px 28px;
  border:1px solid var(--line);box-shadow:var(--shadow-sm);
  transition:transform .4s var(--ease),box-shadow .4s var(--ease);
}
.process-step:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.process-step span{
  display:inline-block;font-size:11.5px;font-weight:800;color:var(--steel);
  letter-spacing:.16em;background:var(--tint);padding:5px 13px;border-radius:20px;
}
.process-step h3{font-size:19px;color:var(--dark);margin:16px 0 12px;letter-spacing:-.01em}
.process-step p{font-size:14px;color:var(--text-light);line-height:1.8}

.info-table{width:100%;border-collapse:collapse;max-width:760px}
.info-table th,.info-table td{padding:20px 8px;border-bottom:1px solid var(--line);text-align:left;font-size:15.5px}
.info-table th{width:140px;color:var(--steel);font-weight:700}
.info-table a{color:var(--steel);font-weight:600}

/* ---------- Contact ---------- */
.contact-cols{display:grid;grid-template-columns:1fr 1.1fr;gap:70px;align-items:start}
.contact-info h2{font-size:clamp(26px,3.2vw,36px);font-weight:800;letter-spacing:-.025em;line-height:1.45;margin-bottom:18px;color:var(--dark)}
.contact-desc{color:var(--text-light);margin-bottom:38px}
.contact-links{display:flex;flex-direction:column;gap:14px}
.contact-link{
  display:flex;align-items:center;gap:18px;padding:22px 26px;
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s;
}
.contact-link:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:transparent}
.contact-link-icon{
  width:48px;height:48px;border-radius:14px;
  background:linear-gradient(135deg,var(--tint),var(--sky));color:var(--steel);
  display:flex;align-items:center;justify-content:center;font-size:20px;flex-shrink:0;
}
.contact-link strong{font-size:16px;letter-spacing:-.01em;color:var(--dark)}
.contact-link span:last-child{font-size:14px;color:var(--text-light);line-height:1.55}

.contact-form-wrap{
  background:var(--white);border:1px solid var(--line);
  border-radius:22px;padding:46px 42px;box-shadow:var(--shadow);
}
.contact-form-wrap h3{font-size:22px;color:var(--dark);margin-bottom:28px;letter-spacing:-.01em}
.contact-form label{display:block;font-size:14px;font-weight:600;margin-bottom:20px;color:var(--text)}
.contact-form label span{color:var(--steel)}
.contact-form input,.contact-form select,.contact-form textarea{
  width:100%;margin-top:8px;padding:13px 16px;border-radius:12px;
  border:1.5px solid var(--line);background:var(--snow);color:var(--text);
  font-size:15px;font-family:inherit;transition:border-color .25s,box-shadow .25s,background .25s;
}
.contact-form input:focus,.contact-form select:focus,.contact-form textarea:focus{
  outline:none;border-color:var(--steel);background:var(--white);
  box-shadow:0 0 0 4px rgba(37,99,176,.1);
}
.contact-form textarea{resize:vertical}
.hp-field{position:absolute!important;left:-9999px!important;opacity:0;height:0;pointer-events:none}
.form-alert{display:none;padding:14px 18px;border-radius:12px;margin-bottom:22px;font-size:14.5px;font-weight:600}
.form-alert.ok{display:block;background:#ecf8f0;color:#217a43;border:1px solid #cdeeda}
.form-alert.fail{display:block;background:#fdf0ef;color:#b0413e;border:1px solid #f6d7d5}

/* ---------- Footer ---------- */
.footer{background:var(--dark);color:rgba(255,255,255,.5);padding:60px 0}
.footer-inner{display:flex;justify-content:space-between;gap:28px;flex-wrap:wrap;align-items:flex-start}
.footer-logo{font-size:18px;font-weight:800;color:#fff;margin-bottom:14px}
.footer-logo span{color:#5f9ade}
.footer-info{font-size:14px;margin-bottom:6px}
.footer-copy{font-size:12.5px;color:rgba(255,255,255,.3);margin-top:10px}
.footer-nav{display:flex;gap:26px}
.footer-nav a{font-size:14px;color:rgba(255,255,255,.5);transition:color .25s}
.footer-nav a:hover{color:#fff}

/* ---------- Effects ---------- */
.header.scrolled{box-shadow:0 6px 26px rgba(18,32,53,.08);background:rgba(255,255,255,.94)}

/* 스크롤 프로그레스 바 */
.scroll-progress{
  position:fixed;top:0;left:0;height:3px;width:100%;z-index:200;
  background:linear-gradient(90deg,var(--steel),#6aa5e8);
  transform-origin:0 50%;transform:scaleX(0);pointer-events:none;
}

/* 커스텀 커서 (데스크탑) */
@media (pointer:fine){
  .cursor-dot,.cursor-ring{
    position:fixed;top:0;left:0;pointer-events:none;z-index:300;border-radius:50%;
    transform:translate(-50%,-50%);
  }
  .cursor-dot{width:6px;height:6px;background:var(--steel)}
  .cursor-ring{
    width:34px;height:34px;border:1.5px solid rgba(37,99,176,.45);
    transition:width .25s var(--ease),height .25s var(--ease),border-color .25s,background .25s;
  }
  .cursor-ring.grow{width:56px;height:56px;border-color:rgba(37,99,176,.2);background:rgba(37,99,176,.06)}
}

/* 헤딩 단어 마스크 리빌 */
.split .w{display:inline-block;overflow:hidden;vertical-align:top}
.split .wi{display:inline-block;transform:translateY(115%);transition:transform .9s var(--ease)}
.split.visible .wi{transform:none}
.split.visible .w:nth-child(2) .wi{transition-delay:.07s}
.split.visible .w:nth-child(3) .wi{transition-delay:.14s}
.split.visible .w:nth-child(4) .wi{transition-delay:.21s}
.split.visible .w:nth-child(5) .wi{transition-delay:.28s}
.split.visible .w:nth-child(6) .wi{transition-delay:.35s}
.split.visible .w:nth-child(7) .wi{transition-delay:.42s}
.split.visible .w:nth-child(8) .wi{transition-delay:.49s}

/* 히어로 대형 아웃라인 타이포 + 그리드 라인 */
.hero-bigword{
  position:absolute;top:90px;left:-2%;z-index:0;pointer-events:none;user-select:none;
  font-size:clamp(140px,24vw,340px);font-weight:800;letter-spacing:-.02em;line-height:1;
  color:transparent;-webkit-text-stroke:1.5px rgba(37,99,176,.10);
  animation:bigwordDrift 14s ease-in-out infinite alternate;
}
@keyframes bigwordDrift{from{transform:translateX(0)}to{transform:translateX(-3%)}}
.hero::after{
  content:'';position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(37,99,176,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(37,99,176,.045) 1px,transparent 1px);
  background-size:72px 72px;
  -webkit-mask-image:radial-gradient(700px 480px at 78% 40%,#000 0%,transparent 75%);
  mask-image:radial-gradient(700px 480px at 78% 40%,#000 0%,transparent 75%);
}
.hero .container{z-index:2}

/* 이미지 커튼 리빌 */
.curtain{position:relative}
.curtain::after{
  content:'';position:absolute;inset:0;background:linear-gradient(120deg,#eaf1fa,#f6f9fd);
  transform:translateX(0);transition:transform 1s var(--ease);z-index:2;
}
.curtain.visible::after{transform:translateX(101%)}
.curtain img{transform:scale(1.15);transition:transform 1.3s var(--ease)}
.curtain.visible img{transform:scale(1)}
.work.curtain:hover img{transform:scale(1.07)}

/* 포트폴리오 프리뷰 비대칭 그리드 */
.works-grid{grid-auto-rows:minmax(0,1fr)}
.works-grid .work:first-child{grid-row:span 2;aspect-ratio:auto}

/* 갤러리 그레이스케일 → 컬러 */
.gallery-item img{filter:saturate(.82)}
.gallery-item:hover img{filter:saturate(1.05)}

.img-fade{opacity:0;transition:opacity .7s var(--ease)}
.img-loaded{opacity:1}

.fab-wrap{position:fixed;right:22px;bottom:22px;z-index:150;display:flex;flex-direction:column;align-items:flex-end;gap:12px}
.fab{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:0;cursor:pointer;transition:all .35s var(--ease);
}
.fab-insta,.fab-call{
  padding:14px 22px;border-radius:50px;color:#fff;font-size:14.5px;font-weight:700;
}
.fab-insta{
  background:linear-gradient(45deg,#405de6,#833ab4,#e1306c,#fd8d32);
  box-shadow:0 12px 30px rgba(131,58,180,.35);
}
.fab-call{
  background:linear-gradient(135deg,var(--steel),#1a4c8c);
  box-shadow:0 12px 30px rgba(37,99,176,.35);
  animation:fabPulse 2.6s ease-in-out infinite;
}
.fab-call:hover{transform:translateY(-3px) scale(1.03);box-shadow:0 18px 38px rgba(37,99,176,.45)}
.fab-insta:hover{transform:translateY(-3px) scale(1.03);box-shadow:0 18px 38px rgba(131,58,180,.45)}
@keyframes fabPulse{0%,100%{box-shadow:0 12px 30px rgba(131,58,180,.35)}50%{box-shadow:0 12px 30px rgba(131,58,180,.35),0 0 0 10px rgba(225,48,108,.08)}}
.fab-top{
  width:46px;height:46px;border-radius:50%;background:#fff;color:var(--text);
  border:1px solid var(--line);box-shadow:var(--shadow-sm);
  opacity:0;visibility:hidden;transform:translateY(10px);
}
.fab-top.show{opacity:1;visibility:visible;transform:none}
.fab-top:hover{color:var(--steel);border-color:var(--steel)}

.lightbox-counter{
  position:absolute;bottom:24px;left:50%;transform:translateX(-50%);
  color:rgba(255,255,255,.85);font-size:14px;font-weight:600;letter-spacing:.06em;
  background:rgba(255,255,255,.1);backdrop-filter:blur(6px);
  padding:7px 18px;border-radius:30px;
}

/* ---------- Reveal animation ---------- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.reveal.visible{opacity:1;transform:none}
.stagger .reveal:nth-child(2){transition-delay:.12s}
.stagger .reveal:nth-child(3){transition-delay:.24s}
.stagger .reveal:nth-child(4){transition-delay:.36s}
.stagger .reveal:nth-child(5){transition-delay:.14s}
.stagger .reveal:nth-child(6){transition-delay:.26s}

/* ---------- Responsive ---------- */
@media (max-width:960px){
  .hero{padding:150px 0 90px}
  .hero-inner{grid-template-columns:1fr;gap:56px}
  .hero-visual{min-height:0;height:420px;max-width:520px}
  .service-grid{grid-template-columns:repeat(2,1fr)}
  .process-grid{grid-template-columns:repeat(2,1fr)}
  .works-grid{grid-template-columns:repeat(2,1fr)}
  .gallery{columns:2}
  .about-cols,.contact-cols{grid-template-columns:1fr;gap:44px}
  .about-img{order:-1}
  .about-img img{aspect-ratio:16/10}
  .section{padding:88px 0}
}
@media (max-width:680px){
  .nav{
    position:fixed;top:76px;left:0;right:0;flex-direction:column;gap:0;
    background:rgba(255,255,255,.97);backdrop-filter:blur(18px);
    max-height:0;overflow:hidden;transition:max-height .4s var(--ease);
  }
  .nav.open{max-height:330px;border-bottom:1px solid var(--line);box-shadow:0 24px 44px rgba(18,32,53,.08)}
  .nav a{padding:17px 24px;border-top:1px solid var(--line)}
  .nav a.active::after{display:none}
  .nav-toggle{display:flex}
  .header-cta{display:none}
  .section{padding:68px 0}
  .section-title{margin-bottom:36px}

  /* --- 모바일 히어로 재구성 --- */
  .hero{padding:118px 0 64px}
  .hero-tag{padding:7px 14px;font-size:11px;letter-spacing:.26em}
  .hero-sub br{display:none}
  .hero-actions{margin-bottom:30px}
  .hero-actions .btn{flex:1;min-width:0;padding:15px 12px;font-size:15px}
  .hero-points{flex-direction:column;gap:10px}
  .hero-visual{height:auto;min-height:0;margin-bottom:26px;max-width:none}
  .hero-photo-main{position:relative;top:auto;right:auto;width:100%;aspect-ratio:4/3}
  .hero-photo-sub{width:36%;aspect-ratio:1/1;bottom:-20px;left:14px;border-width:4px}
  .hero-badge{top:auto;bottom:-18px;right:12px;left:auto;padding:11px 16px;border-radius:13px}
  .hero-badge strong{font-size:13.5px}
  .hero-badge span{font-size:11px}
  .hero-bigword{top:66px;font-size:150px;-webkit-text-stroke-color:rgba(37,99,176,.09)}

  /* --- 시공분야: 좌우 스냅 캐러셀 --- */
  .service-grid{
    display:flex;grid-template-columns:none;gap:14px;
    overflow-x:auto;scroll-snap-type:x mandatory;
    margin:0 -24px;padding:6px 24px 18px;
    scrollbar-width:none;
  }
  .service-grid::-webkit-scrollbar{display:none}
  .service-card{min-width:74%;scroll-snap-align:center;padding:32px 26px}
  .service-card:hover{transform:none}

  /* --- 포트폴리오 프리뷰: 좌우 스냅 캐러셀 --- */
  .works-grid{
    display:flex;grid-template-columns:none;gap:14px;
    overflow-x:auto;scroll-snap-type:x mandatory;
    margin:0 -24px;padding:6px 24px 18px;
    scrollbar-width:none;
  }
  .works-grid::-webkit-scrollbar{display:none}
  .works-grid .work{min-width:80%;scroll-snap-align:center;aspect-ratio:4/3;grid-row:auto}
  .swipe-hint{
    display:block;font-size:12.5px;color:var(--text-light);
    margin-top:-6px;text-align:right;
  }

  .strength-grid{grid-template-columns:1fr;gap:14px}
  .strength{padding:28px 24px}
  .strength em{font-size:34px;top:16px;right:20px}
  .strength p{max-width:100%}

  .showcase{min-height:380px}
  .showcase-inner{padding:80px 24px}

  .gallery{columns:2;column-gap:12px}
  .gallery-item{margin-bottom:12px;border-radius:12px}
  .gallery-item::after{display:none}

  .section-head .btn{margin-bottom:36px;padding:9px 20px;font-size:13.5px}
  .cta-inner{flex-direction:column;text-align:center}
  .cta-band{padding:58px 0}
  .cta-band .btn{width:100%}
  .contact-form-wrap{padding:34px 24px}
  .footer-inner{flex-direction:column;text-align:center;gap:18px}
  .footer-nav{justify-content:center}
  .marquee{padding:16px 0}
  .marquee span{font-size:24px;-webkit-text-stroke-width:1px}
  .fab-insta,.fab-call{padding:12px 18px;font-size:13.5px}
  .fab-wrap{right:14px;bottom:14px;gap:10px}
  .insta-handle{font-size:16px}
  .process-grid{grid-template-columns:1fr;gap:14px}
  .info-table th{width:104px}
  .about-cols{gap:36px}
}
@media (min-width:681px){
  .swipe-hint{display:none}
}