/* ============================================================
   (주)배관의미래 — style.css
   ============================================================ */

/* ---------- 1. 토큰 ---------- */
:root{
  --blue:#1226E8;
  --blue-dark:#0B18A8;
  --blue-soft:#E8EAFD;
  --green:#4B9B6E;
  --green-soft:#E7F2EC;

  --white:#FFFFFF;
  --tint:#F4F7FB;
  --ink:#10151F;
  --body:#3D4655;
  --muted:#7A8496;
  --line:#E2E8F1;

  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-xl:32px;

  --shadow-sm:0 2px 8px rgba(16,21,31,.05);
  --shadow-md:0 8px 28px rgba(16,21,31,.08);
  --shadow-lg:0 20px 60px rgba(18,38,232,.12);

  --wrap:1200px;
  --gutter:20px;
  --sec-y:clamp(64px, 9vw, 128px);
  --header-h:72px;

  --font:"Pretendard Variable", Pretendard, "NanumSquare", -apple-system,
         BlinkMacSystemFont, "Segoe UI", "Malgun Gothic", system-ui, sans-serif;
}

/* ---------- 2. 리셋 ---------- */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth; scroll-padding-top:calc(var(--header-h) + 16px)}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.7;
  color:var(--body);
  background:var(--white);
  -webkit-font-smoothing:antialiased;
  word-break:keep-all;
  overflow-wrap:break-word;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{list-style:none;padding:0}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}

.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:var(--gutter)}

/* ---------- 3. 섹션 공통 ---------- */
.sec{padding-block:var(--sec-y);position:relative}
.sec--white{background:var(--white)}
.sec--tint{background:var(--tint)}

.sec__head{max-width:780px;margin-bottom:clamp(36px,5vw,64px)}
.sec__head--center{margin-inline:auto;text-align:center}
.brk{display:none}
@media (min-width:641px){.brk{display:inline}}

.eyebrow{
  display:inline-block;
  font-size:13px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  color:var(--green);
  background:var(--green-soft);
  padding:6px 14px;border-radius:999px;
  margin-bottom:16px;
}
.eyebrow--on-dark{color:#8FE3B4;background:rgba(75,155,110,.22)}

.sec__title{
  font-size:clamp(26px,3.6vw,40px);
  line-height:1.32;
  font-weight:800;
  letter-spacing:-.03em;
  color:var(--ink);
}
.sec__lead{margin-top:18px;font-size:clamp(15px,1.6vw,18px);color:var(--muted)}
.eyebrow .x{color:var(--green);font-weight:800}

/* ---------- 4. 버튼 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:999px;
  font-weight:700;font-size:16px;line-height:1;
  transition:transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease;
  white-space:nowrap;
}
.btn--primary{background:var(--blue);color:#fff;box-shadow:0 8px 20px rgba(18,38,232,.24)}
.btn--primary:hover{background:var(--blue-dark);transform:translateY(-2px);box-shadow:0 12px 26px rgba(18,38,232,.3)}
.btn--ghost{background:transparent;color:var(--blue);box-shadow:inset 0 0 0 2px var(--blue)}
.btn--ghost:hover{background:var(--blue-soft);transform:translateY(-2px)}
.btn--sm{padding:10px 18px;font-size:14px}
.btn--lg{padding:18px 40px;font-size:18px}

/* 5. 이미지 placeholder — 모든 슬롯이 실제 이미지로 교체되어 삭제됨 */

/* ---------- 6. 헤더 ---------- */
.header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.88);
  backdrop-filter:saturate(1.6) blur(12px);
  -webkit-backdrop-filter:saturate(1.6) blur(12px);
  border-bottom:1px solid transparent;
  transition:border-color .25s ease, box-shadow .25s ease;
}
.header.is-scrolled{border-bottom-color:var(--line);box-shadow:var(--shadow-sm)}
.header__inner{
  height:var(--header-h);
  display:flex;align-items:center;justify-content:space-between;gap:20px;
}

.logo{display:inline-flex;align-items:center;flex:none}
.logo img{
  height:38px;width:auto;display:block;
  /* 원본이 1852×296(6.26:1) — 로드 전에도 자리를 잡아 레이아웃이 튀지 않게 */
  aspect-ratio:1852/296;
}

/* 흰 배경 JPG 로고를 어두운 푸터에 올리기 위한 처리.
   invert(1)로 흰 배경을 검정에 가깝게 뒤집고, hue-rotate(180deg)로
   뒤집히면서 반전된 색상(남색 글자·초록 심볼)을 원래 계열로 되돌린다.
   배경이 투명한 PNG·SVG로 교체하면 이 클래스는 빼도 됩니다. */
.logo--dark img{
  height:34px;
  /* contrast(.85)는 뒤집힌 검정 배경을 푸터 배경(#10151F)과 비슷한 밝기로 띄운다 */
  filter:invert(1) hue-rotate(180deg) contrast(.85) saturate(1.1);
}

.nav{display:flex;align-items:center;gap:6px}
.nav a{
  padding:10px 16px;border-radius:999px;
  font-weight:600;font-size:15px;color:var(--ink);
  transition:background .18s ease,color .18s ease;
}
.nav a:hover{background:var(--blue-soft);color:var(--blue)}
.nav__cta{margin-left:10px;color:#fff !important}
.nav__cta:hover{color:#fff !important}

.burger{display:none;width:44px;height:44px;border-radius:12px;position:relative}
.burger span{
  position:absolute;left:12px;width:20px;height:2px;border-radius:2px;background:var(--ink);
  transition:transform .25s ease, opacity .2s ease, top .25s ease;
}
.burger span:nth-child(1){top:16px}
.burger span:nth-child(2){top:21px}
.burger span:nth-child(3){top:26px}
.burger[aria-expanded="true"] span:nth-child(1){top:21px;transform:rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){top:21px;transform:rotate(-45deg)}

/* ---------- 7. 히어로 ---------- */
.hero{padding-top:clamp(48px,6vw,88px)}
.hero__grid{
  display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(32px,5vw,72px);
  align-items:center;
}
.hero__title{
  font-size:clamp(30px,4vw,44px);
  line-height:1.26;font-weight:800;letter-spacing:-.035em;color:var(--ink);
}
.hero__title .hl{
  color:var(--blue);
  background:linear-gradient(to top, var(--green-soft) 38%, transparent 38%);
  padding-inline:2px;
}
.hero__lead{margin-top:22px;font-size:clamp(16px,1.8vw,19px);color:var(--muted);max-width:30em}
.hero__cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}

/* 숫자 4개.
   컬럼을 auto(내용 너비)로 잡아 "20,000건"이 칸에 눌려 넘치지 않게 한다.
   숫자 줄은 4개 모두 같은 font-size·line-height라 높이가 같고,
   그래서 아래 라벨 줄도 같은 높이에서 시작한다. */
.stats{
  display:grid;grid-template-columns:repeat(4,auto);
  justify-content:space-between;
  column-gap:clamp(12px,2vw,28px);row-gap:22px;
  margin-top:clamp(36px,5vw,56px);
  padding-top:clamp(28px,4vw,36px);
  border-top:1px solid var(--line);
}
.stat{display:flex;flex-direction:column;gap:6px;min-width:0}
.stat__num{
  display:flex;align-items:baseline;gap:2px;
  white-space:nowrap;line-height:1.1;
}
.stat__val{
  font-size:clamp(23px,2.4vw,30px);font-weight:800;letter-spacing:-.04em;
  color:var(--blue);font-variant-numeric:tabular-nums;
}
.stat__unit{
  font-size:clamp(13px,1.25vw,15px);font-weight:700;letter-spacing:-.01em;
  color:var(--muted);
}
.stat__label{font-size:13px;color:var(--muted);font-weight:600;line-height:1.3}

.hero__visual{position:relative}
.hero__img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-xl);
  box-shadow:var(--shadow-md);
}
/* ---------- 8. 카드 3열 + 마무리 박스 ---------- */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:clamp(24px,3vw,34px);
  box-shadow:var(--shadow-sm);
  transition:transform .25s ease, box-shadow .25s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.card__no{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:14px;
  background:var(--blue-soft);color:var(--blue);
  font-weight:800;font-size:15px;margin-bottom:18px;
}
.card__title{font-size:19px;font-weight:700;color:var(--ink);margin-bottom:10px;letter-spacing:-.02em}
.card__text{font-size:15px;color:var(--muted)}

/* 마무리 박스 */
.closer{
  margin-top:clamp(28px,3.5vw,44px);
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-xl);
  padding:clamp(26px,3.4vw,44px);
  box-shadow:var(--shadow-sm);
}
.sec--white .closer{background:var(--tint);border-color:transparent;box-shadow:none}
.closer__title{
  font-size:clamp(19px,2.3vw,25px);font-weight:800;
  color:var(--ink);letter-spacing:-.025em;line-height:1.4;
}
.closer__text{margin-top:12px;font-size:clamp(15px,1.7vw,17px);color:var(--body);max-width:62ch}

.closer--media{
  display:grid;grid-template-columns:1.1fr .9fr;
  gap:clamp(24px,3vw,44px);align-items:center;
}

/* 어두운 섹션(약속)에서의 마무리 박스 */
.sec--promise .closer{
  background:rgba(255,255,255,.08);
  border-color:rgba(255,255,255,.16);
  box-shadow:none;
  backdrop-filter:blur(6px);
}
.sec--promise .closer__title{color:#fff}
.sec--promise .closer__text{color:rgba(255,255,255,.76)}

/* AI가 하는 일 / 사람이 하는 일 */
.split__grid{
  display:grid;grid-template-columns:1fr 1fr;
  gap:clamp(20px,3vw,40px);margin-top:clamp(22px,2.6vw,30px);
}
.split__col + .split__col{border-left:1px solid var(--line);padding-left:clamp(20px,3vw,40px)}
.split__h{
  font-size:15px;font-weight:800;letter-spacing:-.01em;margin-bottom:14px;
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;
}
.split__h--ai{color:var(--blue);background:var(--blue-soft)}
.split__h--human{color:var(--green);background:var(--green-soft)}

/* ---------- 9. 일하는 방식 (4단계 플로우) ---------- */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(16px,2.2vw,24px)}
.flow__item{
  position:relative;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:clamp(22px,2.6vw,30px);
  box-shadow:var(--shadow-sm);
  transition:transform .22s ease, box-shadow .22s ease;
}
.flow__item:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.flow__no{
  display:inline-flex;align-items:center;justify-content:center;
  width:46px;height:46px;border-radius:15px;
  background:var(--blue);color:#fff;
  font-size:15px;font-weight:800;letter-spacing:.01em;
  margin-bottom:18px;
}
.flow__title{
  font-size:clamp(17px,1.9vw,19px);font-weight:800;color:var(--ink);
  letter-spacing:-.025em;margin-bottom:10px;
}
.flow__text{font-size:14.5px;color:var(--muted)}
/* 단계 사이 연결 화살표 */
.flow__item:not(:last-child)::after{
  content:"";position:absolute;top:40px;
  right:calc(-1 * clamp(16px,2.2vw,24px) / 2 - 5px);
  width:10px;height:10px;
  border-top:2px solid #C9D4E4;border-right:2px solid #C9D4E4;
  transform:rotate(45deg);
}

/* ---------- 10. 30년 × AI ---------- */
.ai__media{
  display:grid;grid-template-columns:1fr auto 1fr;
  gap:clamp(16px,2.5vw,32px);align-items:center;
  margin-bottom:clamp(28px,3.5vw,44px);
}
/* 이미지 안의 카드·라벨이 잘리면 안 되므로 contain.
   여백은 이미지 배경과 같은 톤으로 채운다. */
.ai__img{
  width:100%;aspect-ratio:4/3;object-fit:contain;
  background:#EEF3F9;
  border-radius:var(--r-xl);
  box-shadow:var(--shadow-sm);
}
.ai__x{font-size:clamp(26px,3.6vw,40px);font-weight:800;color:var(--green);line-height:1}

.ticks{display:grid;gap:10px}
.ticks li{position:relative;padding-left:26px;font-size:15px;color:var(--body)}
.ticks li::before{
  content:"";position:absolute;left:0;top:.55em;
  width:16px;height:9px;border-left:2.5px solid var(--green);border-bottom:2.5px solid var(--green);
  transform:rotate(-45deg);
}
.ticks--blue li::before{border-left-color:var(--blue);border-bottom-color:var(--blue)}

/* ---------- 11. 취급 품목 ---------- */

/* 그룹 라벨 (표준 12종 / 전문 3종) */
.group{
  display:flex;align-items:center;gap:12px;
  margin:0 0 20px;
  font-size:clamp(17px,2.2vw,20px);font-weight:800;color:var(--ink);letter-spacing:-.02em;
}
.group::after{content:"";flex:1;height:1px;background:var(--line)}
.group__count{
  font-size:13px;font-weight:700;color:var(--blue);
  background:var(--blue-soft);padding:5px 12px;border-radius:999px;
}
.group--pro{margin-top:clamp(40px,5vw,60px)}
.group--pro .group__count{color:var(--green);background:var(--green-soft)}

.items{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.items--pro{grid-template-columns:repeat(3,1fr)}
.item{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px 16px;text-align:center;
  transition:transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.item:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:var(--blue-soft)}
.item__ico{
  display:inline-flex;align-items:center;justify-content:center;
  width:72px;height:72px;border-radius:22px;background:var(--tint);
  margin-bottom:14px;transition:background .22s ease;
}
.item:hover .item__ico{background:var(--blue-soft)}
.item__ico svg{width:46px;height:46px}
.item h4{font-size:15px;font-weight:700;color:var(--ink);letter-spacing:-.02em;margin:0}
.item p{font-size:12.5px;color:var(--muted);margin-top:5px;letter-spacing:-.01em}
.items__note{margin-top:28px;text-align:center;font-size:15px;color:var(--muted)}

/* 전문 3종 — 초록 계열로 구분 */
.item--pro{
  border-color:#CFE6DA;
  background:linear-gradient(180deg,#FBFDFC 0%, var(--white) 55%);
  padding-block:30px;
}
.item--pro:hover{border-color:var(--green);box-shadow:0 10px 30px rgba(75,155,110,.16)}
.item--pro .item__ico{background:var(--green-soft)}
.item--pro:hover .item__ico{background:#D5EADF}
.item--pro h4{font-size:16px}
.items--pro .s-line{stroke:var(--green)}
.items--pro .s-fill{fill:#D5EADF}
.items--pro .s-fill2{fill:#EDF6F1}

/* 카툰 아이콘 스타일 */
.s-line{fill:none;stroke:var(--blue);stroke-width:3.2;stroke-linecap:round;stroke-linejoin:round}
.s-thin{stroke-width:2.2}
.s-fill{fill:var(--blue-soft)}
.s-fill2{fill:var(--green-soft)}

/* ---------- 12. 전문 영역 ---------- */
.fields{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.field{
  background:var(--white);border-radius:var(--r-xl);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-sm);
  transition:transform .25s ease, box-shadow .25s ease;
  display:flex;flex-direction:column;
}
.field:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
/* 카드가 overflow:hidden이라 위쪽 모서리는 카드 곡률대로 잘린다 */
.field__img{width:100%;aspect-ratio:4/3;object-fit:cover}
.field__body{padding:clamp(22px,2.6vw,30px);flex:1}

/* 선급자재·밀시트 강조 카드 */
.field--accent{border:2px solid var(--green);box-shadow:0 6px 24px rgba(75,155,110,.14)}
.field--accent:hover{box-shadow:0 20px 50px rgba(75,155,110,.22)}
.field--accent .field__title{color:var(--green)}
.field__title{font-size:21px;font-weight:800;color:var(--ink);letter-spacing:-.02em}
.field__text{margin-top:10px;font-size:15px;color:var(--muted)}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.tags li{
  font-size:13px;font-weight:600;color:var(--green);
  background:var(--green-soft);padding:6px 12px;border-radius:999px;
}

/* ---------- 13. 약속 ---------- */
.sec--promise{
  background:linear-gradient(160deg,#0D1B8F 0%, var(--blue) 55%, #2A3BF0 100%);
  color:rgba(255,255,255,.78);
}
.sec--promise .sec__title{color:#fff}
.sec--promise .sec__lead{color:rgba(255,255,255,.7)}
.promises{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.promise{
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.16);
  border-radius:var(--r-lg);
  padding:clamp(24px,3vw,34px);
  backdrop-filter:blur(6px);
}
.promise__no{
  display:inline-block;font-size:14px;font-weight:800;letter-spacing:.1em;
  color:#8FE3B4;margin-bottom:12px;
}
/* 카드 안쪽이라 카드(--r-lg)보다 한 단계 작은 곡률 */
.promise__img{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  border-radius:var(--r-md);
  margin-bottom:18px;
}
.promise h3{font-size:19px;font-weight:800;color:#fff;margin-bottom:10px;letter-spacing:-.025em;line-height:1.4}
.promise p{font-size:15px;color:rgba(255,255,255,.72)}
.promise__cta{margin-top:clamp(32px,4vw,44px);text-align:center}
.sec--promise .btn--primary{background:#fff;color:var(--blue);box-shadow:0 10px 30px rgba(0,0,0,.2)}
.sec--promise .btn--primary:hover{background:var(--green-soft)}

/* ---------- 14. 푸터 ---------- */
.footer{background:var(--ink);color:rgba(255,255,255,.66);padding-top:clamp(56px,7vw,88px)}

.footer__head{margin-bottom:clamp(28px,3.5vw,40px)}
.footer__title{
  font-size:clamp(25px,3.6vw,40px);font-weight:800;color:#fff;
  letter-spacing:-.035em;line-height:1.3;
}
.footer__sub{margin-top:12px;font-size:clamp(15px,1.7vw,18px);color:rgba(255,255,255,.6)}

/* 전화 · 팩스 · 이메일 — 동일 비중 */
.reach{
  display:grid;grid-template-columns:repeat(3,1fr);gap:12px;
  margin-bottom:12px;
}
.reach__item{
  display:flex;flex-direction:column;gap:6px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r-lg);
  padding:clamp(18px,2.4vw,26px);
  transition:background .2s ease, border-color .2s ease, transform .2s ease;
}
a.reach__item:hover{background:rgba(255,255,255,.1);border-color:var(--green);transform:translateY(-2px)}
.reach__label{
  font-size:12px;font-weight:700;letter-spacing:.1em;
  color:#8FE3B4;text-transform:uppercase;
}
.reach__num{
  font-size:clamp(20px,2.6vw,27px);font-weight:800;letter-spacing:-.02em;
  color:#fff;line-height:1.2;font-variant-numeric:tabular-nums;
}
.reach__num--mail{font-size:clamp(16px,2vw,21px);letter-spacing:-.01em;word-break:break-all}

/* 카카오톡 채널 */
.kakao{
  display:grid;grid-template-columns:auto 1fr auto auto;align-items:center;
  gap:clamp(14px,2vw,20px);
  margin-bottom:clamp(40px,5vw,60px);
  background:rgba(254,229,0,.08);
  border:1px solid rgba(254,229,0,.3);
  border-radius:var(--r-lg);
  padding:clamp(16px,2.2vw,22px) clamp(18px,2.4vw,26px);
  transition:background .2s ease, border-color .2s ease, transform .2s ease;
}
.kakao:hover{background:rgba(254,229,0,.15);border-color:#FEE500;transform:translateY(-2px)}
.kakao__ico{
  display:flex;align-items:center;justify-content:center;flex:none;
  width:54px;height:54px;border-radius:17px;background:#FEE500;
}
.kakao__ico svg{width:30px;height:30px;color:#191919}
.kakao__body{display:flex;flex-direction:column;gap:3px;min-width:0}
.kakao__label{
  font-size:12px;font-weight:700;letter-spacing:.1em;
  color:#FEE500;text-transform:uppercase;
}
.kakao__name{
  font-size:clamp(17px,2vw,21px);font-weight:800;color:#fff;letter-spacing:-.025em;
}
.kakao__name em{
  font-style:normal;font-weight:700;font-size:.8em;
  color:rgba(255,255,255,.5);margin-left:6px;
}
.kakao__note{font-size:14px;color:rgba(255,255,255,.62);margin-top:3px}
.kakao__go{font-size:20px;color:#FEE500;flex:none}
/* 카톡 QR (PC 전용 — 모바일은 카드 터치로 바로 연결) */
.kakao__qr{display:flex;flex-direction:column;align-items:center;gap:5px;flex:none}
.kakao__qrimg{display:block;width:96px;height:96px;border-radius:8px;background:#fff}
.kakao__qrcap{font-size:11px;font-weight:600;color:rgba(255,255,255,.6);letter-spacing:-.01em}

.footer__grid{
  display:grid;grid-template-columns:1.2fr 1fr 1.1fr;gap:clamp(28px,4vw,48px);
  padding-bottom:clamp(40px,5vw,64px);
}
.footer__h{font-size:15px;font-weight:700;color:#fff;margin-bottom:18px;letter-spacing:-.01em}
.contact{display:grid;gap:12px}
.contact li{display:grid;grid-template-columns:98px 1fr;gap:12px;align-items:start;font-size:15px}
.contact span{color:rgba(255,255,255,.4);font-size:14px;font-weight:600}
.contact a{color:#fff;font-weight:600;border-bottom:1px solid transparent;transition:border-color .2s}
.contact a:hover{border-bottom-color:var(--green)}
.contact p{margin:0;color:rgba(255,255,255,.72)}

/* 주소 아래 지도 링크 (.contact a보다 뒤에 와야 색이 먹는다) */
.contact .map-link{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:10px;
  font-size:14px;font-weight:700;color:#8FE3B4;
  border-bottom:1px solid rgba(143,227,180,.4);
  transition:color .2s ease, border-color .2s ease;
}
.contact .map-link:hover{color:#fff;border-bottom-color:#fff}

.footer__bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding-block:24px 32px;
  display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.42);
}

/* ---------- 15. 맨 위로 ---------- */
.to-top{
  position:fixed;right:20px;bottom:20px;z-index:90;
  width:48px;height:48px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--blue);color:#fff;font-size:20px;font-weight:700;
  box-shadow:0 10px 24px rgba(18,38,232,.3);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .25s ease, transform .25s ease, visibility .25s;
}
.to-top.is-on{opacity:1;visibility:visible;transform:translateY(0)}

/* ---------- 16. 스크롤 등장 애니메이션 ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s cubic-bezier(.22,.8,.3,1), transform .7s cubic-bezier(.22,.8,.3,1)}
.reveal.is-in{opacity:1;transform:none}
.reveal--delay1{transition-delay:.1s}
.reveal--delay2{transition-delay:.2s}
.reveal--delay3{transition-delay:.3s}
.items .item{transition:opacity .55s ease, transform .55s ease, box-shadow .22s ease, border-color .22s ease}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  *{animation-duration:.01ms !important;transition-duration:.01ms !important}
}

/* ============================================================
   17. 반응형
   ============================================================ */

/* 태블릿 이하 */
@media (max-width:1024px){
  .hero__grid{grid-template-columns:1fr;gap:40px}
  .hero__visual{order:-1}
  .grid3{grid-template-columns:repeat(2,1fr)}
  .grid3 .card:last-child{grid-column:1 / -1}
  .closer--media{grid-template-columns:1fr}
  .flow{grid-template-columns:repeat(2,1fr)}
  .flow__item:not(:last-child)::after{display:none}
  .items{grid-template-columns:repeat(3,1fr)}
  .fields{grid-template-columns:1fr;max-width:640px;margin-inline:auto}
  .footer__grid{grid-template-columns:1fr 1fr}
  .footer__brand{grid-column:1 / -1}
}

/* 히어로가 2단인 구간에서는 숫자를 2×2로 (왼쪽 칸이 좁아 4개가 안 들어감) */
@media (max-width:1200px){
  .stats{grid-template-columns:repeat(2,auto);justify-content:start;column-gap:clamp(28px,6vw,64px)}
}

/* 태블릿 — 연락처 3칸이 좁아지면 2줄로 */
@media (max-width:860px){
  .reach{grid-template-columns:1fr 1fr}
  .reach__item:last-child{grid-column:1 / -1}
}

/* 모바일 */
@media (max-width:768px){
  :root{--gutter:18px}

  /* 모바일 내비 */
  .burger{display:block}
  .nav{
    position:fixed;left:0;right:0;top:var(--header-h);
    flex-direction:column;align-items:stretch;gap:2px;
    background:#fff;
    padding:12px 18px calc(18px + env(safe-area-inset-bottom));
    border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-md);
    transform:translateY(-12px);
    opacity:0;visibility:hidden;pointer-events:none;
    transition:opacity .22s ease, transform .22s ease, visibility .22s;
    max-height:calc(100dvh - var(--header-h));
    overflow-y:auto;
  }
  .nav.is-open{opacity:1;visibility:visible;transform:none;pointer-events:auto}
  .nav a{padding:14px 12px;border-radius:var(--r-sm);font-size:16px}
  .nav__cta{margin:8px 0 0;justify-content:center;padding:15px}

  .flow{grid-template-columns:1fr;gap:14px}

  .ai__media{grid-template-columns:1fr;gap:12px}
  .ai__x{justify-self:center}

  .split__grid{grid-template-columns:1fr;gap:26px}
  .split__col + .split__col{
    border-left:0;padding-left:0;
    border-top:1px solid var(--line);padding-top:26px;
  }

  .grid3{grid-template-columns:1fr}
  .grid3 .card:last-child{grid-column:auto}
  .items{grid-template-columns:repeat(2,1fr);gap:12px}
  .items--pro{grid-template-columns:1fr}
  .item--pro{
    display:grid;grid-template-columns:auto 1fr;grid-template-rows:auto auto;
    column-gap:16px;align-content:center;align-items:center;
    text-align:left;padding:18px;
  }
  .item--pro .item__ico{grid-row:1 / 3;margin-bottom:0;width:62px;height:62px;border-radius:18px}
  .item--pro .item__ico svg{width:38px;height:38px}
  .item--pro h4{align-self:end}
  .item--pro p{align-self:start;margin-top:2px}
  .promises{grid-template-columns:1fr}
  .footer__grid{grid-template-columns:1fr}
  .reach{grid-template-columns:1fr;gap:10px}
  .reach__item:last-child{grid-column:auto}
  .reach__item{flex-direction:row;align-items:baseline;justify-content:space-between;gap:14px;padding:16px 20px}
  .reach__label{flex:none}
  .kakao{gap:14px;padding:16px}
  .kakao__ico{width:48px;height:48px;border-radius:15px}
  .kakao__ico svg{width:27px;height:27px}
  .kakao__go{display:none}
  .kakao__qr{display:none}
  .kakao{grid-template-columns:auto 1fr}

  .stats{grid-template-columns:repeat(2,auto);justify-content:start;column-gap:clamp(24px,10vw,56px);row-gap:20px}
  .to-top{right:14px;bottom:14px;width:44px;height:44px}
}

/* 좁은 폰 (~430px) */
@media (max-width:430px){
  .hero__cta{flex-direction:column;align-items:stretch}
  .hero__cta .btn{width:100%}
  .contact li{grid-template-columns:1fr;gap:2px}
  .item{padding:18px 12px}
  .item__ico{width:60px;height:60px;border-radius:18px;margin-bottom:10px}
  .item__ico svg{width:36px;height:36px}
  .item h3{font-size:14px}
}

/* 초소형 폰 — 품목을 한 줄 목록으로 */
@media (max-width:359px){
  .items{grid-template-columns:1fr}
  .item{
    display:grid;grid-template-columns:auto 1fr;grid-template-rows:auto auto;
    column-gap:14px;align-content:center;align-items:center;
    text-align:left;padding:14px;
  }
  .item__ico{grid-row:1 / 3;margin-bottom:0;width:52px;height:52px;border-radius:15px}
  .item__ico svg{width:32px;height:32px}
  .item h4{align-self:end}
  .item p{align-self:start;margin-top:2px}
}