@charset "utf-8";

/* ============================================================
   (주)신도휄트 — 원페이지 스크롤 반응형
   다크 + 옐로 / 일반 스크롤 + 등장 애니메이션
   ============================================================ */

:root {
  /* ── 제품 3색에서 뽑은 브랜드 컬러 ──────────────────
     행주 실물 사진에서 추출 후 화면용으로 보정한 값 */
  --yl:        #f2de3a;   /* 옐로  (사진 #c0b400) */
  --pink:      #e4788f;   /* 핑크  (사진 #b4606c) */
  --mint:      #1a9c81;   /* 민트  (사진 #249078) */
  --mint-lt:   #4fc2a8;
  --yl-soft:   rgba(242,222,58,.16);
  --mint-soft: rgba(26,156,129,.14);

  /* 메인 — 밝은 청그레이 */
  --bg:        #d6e0e6;
  --bg-2:      #e7edf1;
  --card:      #ffffff;
  --card-2:    #f2f6f8;
  --line:      rgba(27,40,48,.12);
  --line-2:    rgba(27,40,48,.22);

  /* 한 톤 더 밝은 섹션 */
  --lt-bg:     #f7fafb;
  --lt-bg-2:   #eef3f6;
  --lt-wedge:  #e6edf1;
  --lt-wedge-2:#dde5eb;
  --lt-ink:    #1b2830;
  --lt-ink-2:  #4c5c66;
  --lt-line:   #dde4e9;

  /* 히어로 오버레이 · 푸터용 딥 청그레이 */
  --deep:      #2a3a44;

  --ink:       #1b2830;
  --ink-2:     #4c5c66;
  --muted:     #7b8b96;

  --max:       1240px;
  --gut:       24px;
  --r:         3px;
  --r-card:    10px;

  --ease:      cubic-bezier(.22,.61,.36,1);
  --header-h:  80px;

  --fs-mega:   clamp(2.4rem, 7vw, 5.6rem);
  --fs-h2:     clamp(1.7rem, 3.6vw, 2.9rem);
  --fs-h3:     clamp(1.1rem, 1.7vw, 1.35rem);
  --fs-lead:   clamp(.98rem, 1.4vw, 1.12rem);
}

*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
  -webkit-text-size-adjust: 100%;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
  }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Noto Sans KR", -apple-system, BlinkMacSystemFont,
               "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  word-break: keep-all;
  overflow-wrap: break-word;
  letter-spacing: -.01em;
  overflow-x: hidden;
}

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }

/* 영문 디스플레이 */
.en {
  font-family: Inter, "Noto Sans KR", sans-serif;
  letter-spacing: -.035em;
  font-weight: 800;
}
.num {
  font-family: Inter, sans-serif;
  font-variant-numeric: tabular-nums;
  letter-spacing: -.03em;
}

.sr {
  position: absolute; width: 1px; height: 1px;
  margin: -1px; padding: 0; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip {
  position: absolute; left: 12px; top: -60px; z-index: 300;
  background: var(--yl); color: #12211d; padding: 10px 18px;
  font-weight: 700; border-radius: var(--r); transition: top .2s;
}
.skip:focus { top: 12px; }
:focus-visible { outline: 2px solid var(--yl); outline-offset: 3px; }

/* ── 레이아웃 ─────────────────────────────────────────── */

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

.sec {
  position: relative;
  padding: clamp(80px, 11vw, 150px) 0;
  overflow: hidden;
}
.sec--alt  { background: var(--bg-2); }
.sec--lt   { background: var(--lt-bg); color: var(--lt-ink); }
.sec--lt2  { background: var(--lt-bg-2); color: var(--lt-ink); }

/* ── 대각선 배경 쐐기 ────────────────────────────────────
   섹션이 화면에 들어오면(.is-on) 화면 밖에서 1.3초에 걸쳐 밀려 들어온다.
   섹션마다 방향을 번갈아 준다. */
.diagram {
  position: absolute; top: 0; z-index: 0;
  width: 100%; height: 100%;
  pointer-events: none; opacity: .35;
  background: rgba(27,40,48,.05);
  transition: right 1.3s var(--ease), left 1.3s var(--ease),
              opacity 1.3s var(--ease);
}
.diagram--r { right: -90%; clip-path: polygon(50% 0, 100% 0, 50% 100%, 0 100%); }
.diagram--l { left: -90%;  clip-path: polygon(0 0, 50% 0, 100% 100%, 50% 100%); }
.sec.is-on .diagram--r { right: 0; opacity: 1; }
.sec.is-on .diagram--l { left: 0;  opacity: 1; }

/* 라이트 섹션에서는 회색 쐐기 */
.sec--lt  .diagram { background: var(--lt-wedge); }
.sec--lt2 .diagram { background: var(--lt-wedge-2); }

/* 계속 흐르는 그라디언트 변형 (레퍼런스 가격 섹션) */
.diagram--flow {
  left: 0; opacity: 1;
  clip-path: polygon(0 0, 50% 0, 100% 100%, 50% 100%);
  background: linear-gradient(rgba(242,222,58,.30), rgba(228,120,143,.24),
                              rgba(79,194,168,.30), rgba(242,222,58,.30));
  background-size: 100% 300%;
  animation: gradientMove 7s ease-in-out infinite;
}
@keyframes gradientMove {
  0%   { background-position: 50% 0%; }
  50%  { background-position: 50% 100%; }
  100% { background-position: 50% 0%; }
}
@media (prefers-reduced-motion: reduce) {
  .diagram { transition: none; opacity: 1; right: 0; left: 0; }
  .diagram--flow { animation: none; }
}

.sec > .wrap { position: relative; z-index: 1; }

/* ── 섹션 헤더 ───────────────────────────────────────── */

.sec-head { margin-bottom: clamp(40px, 5.5vw, 68px); }

.kicker {
  display: flex; align-items: center; gap: 12px;
  font-family: Inter, sans-serif;
  font-size: .76rem; font-weight: 700;
  letter-spacing: .22em; text-transform: uppercase;
  color: var(--mint); margin: 0 0 16px;
}
.kicker .k-num {
  color: var(--muted); font-variant-numeric: tabular-nums;
}
.kicker .k-num::after {
  content: ""; display: inline-block; vertical-align: middle;
  width: 22px; height: 1px; background: var(--line-2);
  margin: 0 4px 0 12px;
}
.sec--lt .kicker .k-num,
.sec--lt2 .kicker .k-num { color: #8b9a95; }
.sec--lt .kicker .k-num::after,
.sec--lt2 .kicker .k-num::after { background: rgba(18,33,29,.2); }

.sec-title {
  font-size: var(--fs-h2); font-weight: 800;
  line-height: 1.25; letter-spacing: -.035em;
  margin: 0 0 18px; text-wrap: balance;
}
.sec-title .hl { color: var(--ink); background: var(--yl); padding: 0 .18em; }

.lead {
  font-size: var(--fs-lead); color: var(--ink-2);
  margin: 0; max-width: 60ch;
}
.sec--lt .lead,
.sec--lt2 .lead { color: var(--lt-ink-2); }

/* ── 버튼 ─────────────────────────────────────────────── */

.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 16px 32px; border: 1px solid transparent;
  border-radius: var(--r);
  font-size: .94rem; font-weight: 700;
  transition: background .25s var(--ease), color .25s var(--ease),
              border-color .25s var(--ease), transform .25s var(--ease);
}
.btn:hover { transform: translateY(-2px); }
.btn .arw { transition: transform .25s var(--ease); }
.btn:hover .arw { transform: translateX(4px); }

.btn--yl { background: var(--yl); color: #12211d; }
.btn--yl:hover { background: #fbec7a; }

.btn--line { border-color: var(--line-2); color: var(--ink); }
.btn--line:hover { border-color: var(--mint); color: var(--mint); background: var(--mint-soft); }

.btn--dark { background: var(--deep); color: #fff; }
.btn--dark:hover { background: #1b2830; }

.btn--ltline { border-color: rgba(18,33,29,.24); color: var(--lt-ink); }
.btn--ltline:hover { border-color: var(--mint); color: var(--mint); background: var(--mint-soft); }

/* ── 헤더 ─────────────────────────────────────────────── */

.header {
  position: fixed; inset: 0 0 auto 0; z-index: 200;
  height: var(--header-h); display: flex; align-items: center;
  transition: background .35s var(--ease), height .35s var(--ease),
              border-color .35s var(--ease);
  border-bottom: 1px solid transparent;
}
.header.is-stuck {
  background: rgba(247,250,251,.94);
  backdrop-filter: saturate(1.5) blur(14px);
  -webkit-backdrop-filter: saturate(1.5) blur(14px);
  border-bottom-color: var(--line);
  height: 66px;
}
.header .wrap {
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
}

.brand { display: flex; align-items: center; gap: 11px; }
.brand img { width: 36px; height: auto; filter: brightness(0) invert(1); }
.is-stuck .brand img { filter: none; }
.is-stuck .brand-ko { color: var(--ink); }
.is-stuck .brand-en { color: var(--muted); }
.is-stuck .lang { border-color: var(--line-2); }
.is-stuck .lang a { color: var(--muted); }
.is-stuck .lang a:hover { color: var(--ink); }
.is-stuck .lang a.is-on { color: var(--mint); }
.is-stuck .lang i { color: var(--line-2); }
.is-stuck .nav a { color: var(--ink-2); }
.is-stuck .nav a:hover { color: var(--ink); }
.is-stuck .nav a.is-active { color: var(--mint); }
.is-stuck .nav a::after { background: var(--mint); }
.is-stuck .burger span { background: var(--ink); }
.brand-txt { display: flex; flex-direction: column; line-height: 1.12; }
.brand-ko { font-weight: 800; font-size: 1.05rem; letter-spacing: -.04em; }
.brand-en {
  font-family: Inter, sans-serif; font-size: .58rem; font-weight: 700;
  letter-spacing: .26em; text-transform: uppercase; color: var(--muted);
}

.nav { display: flex; align-items: center; gap: 2px; margin-left: auto; }

/* 언어 전환 + 모바일 버거를 묶는 우측 그룹 */
.header-tools { display: flex; align-items: center; gap: 6px; flex: none; }

.lang {
  display: flex; align-items: center; gap: 7px;
  padding: 7px 12px; border: 1px solid var(--line-2); border-radius: 999px;
  font-family: Inter, sans-serif; font-size: .74rem; font-weight: 700;
  letter-spacing: .1em;
}
.lang svg { opacity: .55; flex: none; }
.lang a { color: var(--muted); transition: color .2s var(--ease); }
.lang a:hover { color: #fff; }
.lang a.is-on { color: var(--yl); }
.lang i { font-style: normal; color: var(--line-2); }
.nav a {
  position: relative; padding: 10px 15px;
  font-size: .9rem; font-weight: 600; color: rgba(255,255,255,.78);
  transition: color .25s var(--ease);
}
.nav a::after {
  content: ""; position: absolute; left: 15px; right: 15px; bottom: 4px;
  height: 2px; background: var(--yl);
  transform: scaleX(0); transform-origin: left;
  transition: transform .3s var(--ease);
}
.nav a:hover { color: #fff; }
.nav a:hover::after, .nav a.is-active::after { transform: scaleX(1); }
.nav a.is-active { color: var(--yl); }
.header-cta { margin-left: 12px; padding: 11px 22px; font-size: .86rem; }

.burger {
  display: none; width: 44px; height: 44px;
  background: none; border: 0; padding: 0; position: relative;
}
.burger span {
  position: absolute; left: 10px; right: 10px; height: 2px; background: #fff;
  transition: transform .3s var(--ease), opacity .2s;
}
.burger span:nth-child(1) { top: 15px; }
.burger span:nth-child(2) { top: 21px; }
.burger span:nth-child(3) { top: 27px; }
.burger.is-open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.burger.is-open span:nth-child(2) { opacity: 0; }
.burger.is-open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.progress {
  position: fixed; top: 0; left: 0; z-index: 201;
  height: 2px; width: 100%; background: var(--yl);
  transform: scaleX(0); transform-origin: left;
}

/* ── 우측 섹션 인디케이터 (레퍼런스 01/07 차용) ───────── */

.sidenav {
  position: fixed; right: 26px; top: 50%; z-index: 150;
  transform: translateY(-50%);
  mix-blend-mode: difference;
  display: flex; flex-direction: column; align-items: center; gap: 14px;
  font-family: Inter, sans-serif; font-size: .68rem; font-weight: 700;
  letter-spacing: .1em; color: #8f9ba3;
}
.sidenav .bar {
  width: 1px; height: 90px; background: rgba(255,255,255,.3);
  position: relative; overflow: hidden;
}
.sidenav .bar i {
  position: absolute; left: 0; top: 0; width: 100%; height: 30%;
  background: var(--yl); transition: transform .4s var(--ease);
}
.sidenav .cur { color: #fff; }

/* ── 플로팅 액션 (레퍼런스 차용) ─────────────────────── */

.floats {
  position: fixed; right: 22px; bottom: 22px; z-index: 180;
  display: flex; flex-direction: column; gap: 10px; align-items: center;
}
.float {
  width: 54px; height: 54px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--yl); color: #12211d;
  box-shadow: 0 10px 26px -8px rgba(0,0,0,.6);
  transition: transform .25s var(--ease), background .25s var(--ease);
  border: 0;
}
.float:hover { transform: translateY(-3px); }
.float--tel { font-size: .62rem; font-weight: 800; line-height: 1.1; text-align: center; }
.float--top {
  background: #fff; color: var(--ink);
  border: 1px solid var(--line-2);
  opacity: 0; visibility: hidden;
  transition: opacity .3s, visibility .3s, transform .25s var(--ease);
}
.float--top.is-on { opacity: 1; visibility: visible; }
.float--top:hover { background: var(--card-2); }

/* ── 히어로 ───────────────────────────────────────────── */

/* 히어로는 사진 위라 배경이 밝아져도 글자는 흰색으로 고정한다.
   본문 토큰(--ink 계열)이 어두운 색이 됐기 때문에 여기서 되돌린다. */
.hero, .page-hero { color: #fff; }
.hero .desc, .page-hero p { color: rgba(255,255,255,.86); }
.hero-ko { color: #fff; }
.hero-stats { border-top-color: rgba(255,255,255,.16); }
.hero-stats li { border-left-color: rgba(255,255,255,.16); }
.hero-stats li > span { color: rgba(255,255,255,.72); }
.hero-scroll { color: rgba(255,255,255,.75); }
.crumb { color: rgba(255,255,255,.72); }
.crumb a:hover { color: var(--yl); }

.hero .btn--line, .page-hero .btn--line {
  border-color: rgba(255,255,255,.45); color: #fff; background: transparent;
}
.hero .btn--line:hover, .page-hero .btn--line:hover {
  border-color: #fff; color: #fff; background: rgba(255,255,255,.14);
}


.hero {
  position: relative; min-height: 100svh;
  display: flex; flex-direction: column; overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; transform: scale(1.05); }
.hero-bg::after {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(100deg, rgba(30,44,53,.9) 0%, rgba(30,44,53,.66) 45%, rgba(30,44,53,.34) 100%),
    linear-gradient(0deg, rgba(30,44,53,.88) 0%, rgba(30,44,53,0) 42%);
}
/* 본문은 남는 높이를 다 먹고 세로 가운데. 스탯 바는 자연스럽게 아래로 */
.hero > .wrap {
  position: relative; z-index: 3;
  flex: 1 1 auto;
  display: flex; flex-direction: column; justify-content: center;
  padding-top: calc(var(--header-h) + 20px);
  padding-bottom: 44px;
}

.hero-kick {
  display: flex; align-items: center; gap: 14px;
  font-family: Inter, sans-serif; font-size: .8rem; font-weight: 700;
  letter-spacing: .26em; text-transform: uppercase;
  color: var(--yl); margin: 0 0 26px;
}
.hero-kick::before { content: ""; width: 46px; height: 1px; background: var(--yl); }

.hero h1 {
  font-size: var(--fs-mega);
  line-height: 1.02; margin: 0 0 28px;
  text-transform: uppercase;
}
.hero h1 .l2 { display: block; color: var(--yl); }

.hero-ko {
  font-size: clamp(1.05rem, 2vw, 1.5rem);
  font-weight: 700; letter-spacing: -.035em;
  margin: 0 0 18px; line-height: 1.45;
}
.hero p.desc {
  font-size: var(--fs-lead); color: var(--ink-2);
  max-width: 48ch; margin: 0 0 40px;
}
.hero-acts { display: flex; flex-wrap: wrap; gap: 12px; }

/* 우하단 워터마크 로고 */
.hero-mark {
  position: absolute; right: -2%; bottom: 6%; z-index: 1;
  width: min(34vw, 420px); opacity: .06;
  filter: brightness(0) invert(1);
  pointer-events: none;
}

/* 좌측 세로 SCROLL */
.hero-scroll {
  position: absolute; left: 26px; bottom: 26%; z-index: 3;
  writing-mode: vertical-rl;
  font-family: Inter, sans-serif; font-size: .68rem; font-weight: 700;
  letter-spacing: .38em; text-transform: uppercase; color: var(--ink-2);
  display: flex; align-items: center; gap: 14px;
}
.hero-scroll::after {
  content: ""; width: 1px; height: 58px;
  background: linear-gradient(180deg, var(--yl), transparent);
  animation: drop 2.2s var(--ease) infinite;
}
@keyframes drop {
  0%   { transform: scaleY(0); transform-origin: top; }
  45%  { transform: scaleY(1); transform-origin: top; }
  55%  { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* 히어로 하단 스탯 */
.hero-stats {
  position: relative; z-index: 3; flex: none;
  border-top: 1px solid var(--line);
  background: linear-gradient(0deg, rgba(30,44,53,.82), rgba(30,44,53,.26));
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
}
.hero-stats ul {
  display: grid; grid-auto-flow: column; grid-auto-columns: 1fr;
  margin: 0; padding: 0; list-style: none;
}
.hero-stats li {
  padding: 20px 10px; text-align: center;
  border-left: 1px solid var(--line);
}
.hero-stats li:first-child { border-left: 0; }
.hero-stats b {
  display: block; font-family: Inter, sans-serif; font-weight: 800;
  font-size: clamp(1.35rem, 2.6vw, 2.1rem); letter-spacing: -.04em;
  color: var(--yl); line-height: 1.2;
}
/* 카운트업 span이 라벨 스타일을 물려받지 않도록 직계 자식만 지정 */
.hero-stats li > span {
  display: block; font-size: .75rem;
  color: var(--ink-2); letter-spacing: .02em;
}

/* ── 회사소개 ─────────────────────────────────────────── */

.about-grid {
  display: grid; grid-template-columns: 1.02fr .98fr;
  gap: clamp(34px, 5vw, 78px); align-items: center;
}
.about-copy p { color: var(--ink-2); margin: 0 0 18px; }
.about-copy p strong { color: var(--ink); font-weight: 700; }


.about-figure { position: relative; margin: 0; }
.about-figure img { border-radius: var(--r); }
.about-figure::after {
  content: ""; position: absolute; right: -14px; bottom: -14px;
  width: 132px; height: 132px;
  border-right: 3px solid var(--yl); border-bottom: 3px solid var(--yl);
  pointer-events: none;
}

.values {
  display: grid; grid-template-columns: repeat(4,1fr);
  gap: 1px; background: var(--line);
  border: 1px solid var(--line);
  margin-top: clamp(46px, 6vw, 76px);
}
.value { background: #fff; padding: 34px 26px; position: relative; }
.sec--alt .value { background: #fff; }
.value .vn {
  font-family: Inter, sans-serif; font-size: .72rem; font-weight: 700;
  color: var(--muted); letter-spacing: .1em; display: block; margin-bottom: 18px;
}
.value b {
  display: block; font-family: Inter, sans-serif; font-size: .86rem;
  font-weight: 800; letter-spacing: .12em; color: var(--mint); margin-bottom: 12px;
}
.value p { margin: 0; font-size: .9rem; color: var(--ink-2); line-height: 1.72; }

/* ── 파트너사 ─────────────────────────────────────────── */

.partners {
  display: grid; grid-template-columns: repeat(6,1fr);
  gap: 1px; background: var(--line); border: 1px solid var(--line);
}
.partner {
  background: #fff; aspect-ratio: 16/9;
  display: grid; place-items: center; padding: 20px;
}
.sec--alt .partner { background: #fff; }
.partner img {
  max-height: 34px; width: auto;
  filter: grayscale(1); opacity: .5;
  transition: opacity .3s var(--ease), transform .3s var(--ease),
              filter .3s var(--ease);
}
.partner:hover img { filter: none; opacity: 1; transform: scale(1.06); }

/* 라이트 섹션에서는 흰색 반전이 안 보인다. 원색을 흑백으로 깔고 호버에 컬러. */
.sec--lt .partner, .sec--lt2 .partner { background: #fff; }
.sec--lt .partner img, .sec--lt2 .partner img { filter: grayscale(1); opacity: .5; }
.sec--lt .partner:hover img, .sec--lt2 .partner:hover img { filter: none; opacity: 1; }
.sec--lt .partners, .sec--lt2 .partners {
  background: var(--lt-line); border-color: var(--lt-line);
}

/* ── 사업소개 (라이트) ────────────────────────────────── */

.biz-grid {
  display: grid; grid-template-columns: repeat(3,1fr);
  gap: clamp(18px, 2.4vw, 30px);
}
.biz-card {
  background: #fff; border: 1px solid var(--lt-line);
  border-radius: var(--r-card); overflow: hidden;
  display: flex; flex-direction: column;
  transition: transform .35s var(--ease), box-shadow .35s var(--ease);
}
.biz-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 22px 46px -24px rgba(15,17,20,.45);
}
.biz-card figure { margin: 0; aspect-ratio: 3/2; overflow: hidden; position: relative; }
.biz-card figure img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .6s var(--ease);
}
.biz-card:hover figure img { transform: scale(1.06); }
.biz-step {
  position: absolute; left: 0; top: 0; z-index: 2;
  background: var(--yl); color: #12211d;
  font-family: Inter, sans-serif; font-size: .72rem; font-weight: 800;
  letter-spacing: .12em; padding: 7px 14px;
}
.biz-card .body { padding: 26px 24px 30px; }
.biz-card h3 {
  font-size: var(--fs-h3); font-weight: 800;
  margin: 0 0 10px; letter-spacing: -.03em; color: var(--lt-ink);
}
.biz-card .en-sub {
  font-family: Inter, sans-serif; font-size: .74rem; font-weight: 700;
  letter-spacing: .1em; text-transform: uppercase;
  color: var(--mint); display: block; margin-bottom: 8px;
}
.biz-card p { margin: 0; font-size: .9rem; color: var(--lt-ink-2); }

/* 대표 공정 한 장은 노란 카드로 (레퍼런스의 활성 슬라이드 차용) */
.biz-card--hl { background: var(--yl); border-color: var(--yl); }
.biz-card--hl .biz-step { background: #12211d; color: var(--yl); }
.biz-card--hl .en-sub { color: rgba(18,33,29,.6); }
.biz-card--hl h3 { color: #12211d; }
.biz-card--hl p { color: rgba(18,33,29,.8); }

.biz-note {
  margin-top: clamp(34px, 5vw, 56px);
  display: grid; grid-template-columns: repeat(3,1fr);
  gap: 1px; background: var(--lt-line); border: 1px solid var(--lt-line);
}
.biz-note div { background: var(--lt-bg); padding: 28px 26px; }
.biz-note b {
  display: block; font-family: Inter, sans-serif; font-size: 1.75rem;
  font-weight: 800; letter-spacing: -.04em; margin-bottom: 4px; color: var(--mint);
}
.biz-note span { font-size: .88rem; color: var(--lt-ink-2); }

/* ── 연혁 ─────────────────────────────────────────────── */

.timeline { position: relative; }
.timeline::before {
  content: ""; position: absolute; left: 0; top: 10px; bottom: 10px;
  width: 1px; background: linear-gradient(180deg, var(--mint), var(--line) 40%, transparent);
}
.era { position: relative; padding: 0 0 48px 36px; }
.era:last-child { padding-bottom: 0; }
.era::before {
  content: ""; position: absolute; left: -5px; top: 14px;
  width: 11px; height: 11px; border-radius: 50%;
  background: var(--bg); border: 2px solid var(--line-2);
}
.sec--alt .era::before { background: var(--bg-2); }
.era--now::before { background: var(--mint); border-color: var(--mint); }
.era > b {
  display: block; font-family: Inter, sans-serif;
  font-size: clamp(1.6rem, 3.2vw, 2.3rem); font-weight: 800;
  letter-spacing: -.045em; line-height: 1; margin-bottom: 20px;
  color: rgba(27,40,48,.26);
}
.era--now > b { color: var(--mint); }
.era ul { margin: 0; padding: 0; list-style: none; }
.era li {
  display: grid; grid-template-columns: 78px 1fr; gap: 18px;
  padding: 11px 0; border-top: 1px solid var(--line); font-size: .95rem;
}
.era li:first-child { border-top: 0; }
.era li i {
  font-style: normal; font-family: Inter, sans-serif;
  font-weight: 700; color: var(--mint); font-variant-numeric: tabular-nums;
}
.era li span { color: var(--ink-2); }

/* 연혁을 라이트 섹션에 놓을 때 */
.sec--lt .timeline::before, .sec--lt2 .timeline::before {
  background: linear-gradient(180deg, var(--mint), var(--lt-line) 42%, transparent);
}
.sec--lt .era::before, .sec--lt2 .era::before {
  background: var(--lt-bg-2); border-color: var(--lt-line);
}
.sec--lt2 .era::before { background: var(--lt-bg-2); }
.sec--lt .era--now::before, .sec--lt2 .era--now::before {
  background: var(--mint); border-color: var(--mint);
}
.sec--lt .era > b, .sec--lt2 .era > b { color: rgba(18,33,29,.26); }
.sec--lt .era--now > b, .sec--lt2 .era--now > b { color: var(--mint); }
.sec--lt .era li, .sec--lt2 .era li { border-top-color: var(--lt-line); }
.sec--lt .era li i, .sec--lt2 .era li i { color: var(--mint); }
.sec--lt .era li span, .sec--lt2 .era li span { color: var(--lt-ink-2); }

/* ── 제품 ─────────────────────────────────────────────── */

.prod {
  display: grid; grid-template-columns: 1.06fr .94fr;
  gap: clamp(34px, 5vw, 76px); align-items: center;
}
.prod-gal {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.prod-gal figure {
  margin: 0; overflow: hidden; border-radius: var(--r);
  position: relative; background: #fff;
}
.prod-gal figure:first-child { grid-column: 1 / -1; }
.prod-gal img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .65s var(--ease);
}
.prod-gal figure:hover img { transform: scale(1.05); }

.prod-name {
  font-size: clamp(1.5rem, 3vw, 2.1rem); font-weight: 800;
  letter-spacing: -.04em; margin: 0 0 6px;
}
.prod-en {
  font-family: Inter, sans-serif; font-size: .78rem; font-weight: 700;
  letter-spacing: .18em; text-transform: uppercase; color: var(--mint);
  display: block; margin-bottom: 18px;
}
.prod p.desc { color: var(--ink-2); margin: 0; }

.spec-mini { margin: 28px 0 34px; border-top: 1px solid var(--line); }
.spec-mini > div {
  display: grid; grid-template-columns: 100px 1fr; gap: 16px;
  padding: 13px 0; border-bottom: 1px solid var(--line); font-size: .93rem;
}
.spec-mini dt { font-weight: 700; color: var(--muted); }
.spec-mini dd { margin: 0; color: var(--ink-2); }
.swatches { display: flex; gap: 9px; align-items: center; }
.swatch {
  width: 26px; height: 26px; border-radius: 50%;
  border: 1px solid rgba(27,40,48,.18);
}
.swatch--y { background: #f2e04b; }
.swatch--p { background: #e4788f; }
.swatch--t { background: #3fc0ab; }

/* ── 오시는 길 (라이트) ───────────────────────────────── */

/* 지도 이미지를 걷어내고 정보만 남긴 뒤로는 한 단으로 흐른다 */
.map-info { max-width: 560px; }

.info-list > div {
  display: grid; grid-template-columns: 92px 1fr; gap: 16px;
  padding: 17px 0; border-bottom: 1px solid var(--lt-line); font-size: .95rem;
}
.info-list > div:first-child { border-top: 1px solid var(--lt-line); }
.info-list dt { font-weight: 700; color: #8d939d; }
.info-list dd { margin: 0; color: var(--lt-ink-2); }
.info-list a:hover { color: var(--lt-ink); text-decoration: underline; }
.map-links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.map-links .btn { padding: 12px 20px; font-size: .87rem; }

/* ── 문의 ─────────────────────────────────────────────── */

.contact { position: relative; }
.contact-bg { position: absolute; inset: 0; z-index: 0; }
.contact-bg img { width: 100%; height: 100%; object-fit: cover; opacity: .12; }
.contact-bg::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, var(--bg) 20%, rgba(214,224,230,.78) 100%);
}
.contact-grid {
  display: grid; grid-template-columns: .88fr 1.12fr;
  gap: clamp(34px, 5vw, 76px);
}
.contact h2.mega {
  font-size: clamp(1.9rem, 4.4vw, 3.2rem);
  line-height: 1.06; margin: 0 0 20px; text-transform: uppercase;
}
.contact h2.mega .hl { color: var(--mint); display: block; }

.contact-direct { margin-top: 34px; }
.contact-direct a {
  display: flex; align-items: center; gap: 15px;
  padding: 17px 0; border-top: 1px solid var(--line);
}
.contact-direct a:last-child { border-bottom: 1px solid var(--line); }
.contact-direct i {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--mint-soft); color: var(--mint);
  display: grid; place-items: center; flex: none;
}
.contact-direct b { display: block; font-size: 1.05rem; letter-spacing: -.02em; }
.contact-direct em { font-style: normal; font-size: .76rem; color: var(--muted); }

.form { display: grid; gap: 16px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { display: grid; gap: 8px; }
.field label { font-size: .84rem; font-weight: 600; color: var(--ink-2); }
.field label .req { color: var(--mint); }
.field input, .field textarea, .field select {
  width: 100%; padding: 14px 16px;
  background: #fff;
  border: 1px solid var(--line-2); border-radius: var(--r);
  color: var(--ink); font: inherit; font-size: .94rem;
  transition: border-color .2s, background .2s;
}
.field textarea { min-height: 132px; resize: vertical; }
.field input::placeholder, .field textarea::placeholder { color: #9aa7b0; }
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none; border-color: var(--mint); background: #fff;
}
.field select option { color: var(--ink); }
.form-agree {
  display: flex; gap: 11px; align-items: flex-start;
  font-size: .84rem; color: var(--ink-2);
}
.form-agree input { margin-top: 5px; flex: none; accent-color: var(--mint); }
.form-note { font-size: .79rem; color: var(--muted); margin: 0; }

/* ── 푸터 ─────────────────────────────────────────────── */

.footer {
  background: var(--deep); color: #9fb0bb;
  padding: 58px 0 42px; font-size: .86rem;
}
.footer-top {
  display: flex; flex-wrap: wrap; gap: 28px;
  justify-content: space-between; align-items: flex-start;
  padding-bottom: 28px; border-bottom: 1px solid rgba(255,255,255,.14);
}
.footer-brand { display: flex; align-items: center; gap: 12px; }
.footer-brand img { width: 34px; filter: brightness(0) invert(1); opacity: .8; }
.footer-brand b { color: #fff; font-size: 1.05rem; letter-spacing: -.03em; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 6px 24px; }
.footer-nav a { color: #c3d0d8; }
.footer-nav a:hover { color: #fff; }
.footer-info { margin: 26px 0 0; line-height: 2.05; }
.footer-info span { margin-right: 20px; white-space: nowrap; }
.footer-copy {
  margin: 20px 0 0; font-size: .78rem; color: #7b8b96;
  font-family: Inter, sans-serif; letter-spacing: .02em;
}

/* ── 스크롤 등장 ─────────────────────────────────────── */

.reveal {
  opacity: 0; transform: translateY(28px);
  transition: opacity .8s var(--ease), transform .8s var(--ease);
  transition-delay: var(--d, 0ms);
  will-change: opacity, transform;
}
.reveal.is-in { opacity: 1; transform: none; }

.reveal-x { opacity: 0; transform: translateX(-26px); }
.reveal-x.is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .reveal, .reveal-x { opacity: 1; transform: none; }
}

/* ── 반응형 ───────────────────────────────────────────── */

@media (max-width: 1240px) {
  .sidenav { right: 14px; }
}

@media (max-width: 1080px) {
  .sidenav { display: none; }
  .values, .biz-grid, .biz-note { grid-template-columns: repeat(2,1fr); }
  .partners { grid-template-columns: repeat(3,1fr); }
  .about-grid, .prod, .contact-grid { grid-template-columns: 1fr; }
  .about-figure { order: -1; }
  .about-figure::after { display: none; }
  .hero-scroll { display: none; }
}

@media (max-width: 760px) {
  :root { --header-h: 62px; --gut: 20px; }

  .header { height: var(--header-h); }
  .header.is-stuck { height: 58px; }
  .header:not(.is-stuck) { background: rgba(30,44,53,.5); backdrop-filter: blur(8px); }
  .burger { display: block; }
  .lang { padding: 6px 10px; font-size: .7rem; gap: 6px; }
  .lang svg { display: none; }

  /* 데스크톱에선 헤더 바에 있던 CTA가 모바일에선 메뉴 패널 안으로 들어간다.
     패널 자체가 닫혀 있으면 어차피 안 보이므로 숨기지 않는다. */
  .header-cta { margin-left: 0; }

  .nav {
    position: fixed; inset: var(--header-h) 0 auto 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--lt-bg);
    border-bottom: 1px solid var(--line);
    padding: 8px 20px 22px;
    transform: translateY(-12px); opacity: 0; visibility: hidden;
    transition: opacity .25s var(--ease), transform .25s var(--ease), visibility .25s;
    max-height: calc(100svh - var(--header-h)); overflow-y: auto;
  }
  .nav.is-open { opacity: 1; visibility: visible; transform: none; }
  .nav a { padding: 15px 4px; border-bottom: 1px solid var(--line);
           font-size: 1rem; color: var(--ink) !important; }
  .nav a::after { display: none; }
  .nav .btn { margin-top: 18px; justify-content: center; border-bottom: 0; }

  .hero { min-height: 94svh; }
  .hero-mark { width: 62vw; right: -8%; bottom: 15%; opacity: .05; }
  .hero-stats ul { grid-auto-flow: row; grid-template-columns: repeat(2,1fr); }
  .hero-stats li:nth-child(3) { border-left: 0; grid-column: 1 / -1;
                                border-top: 1px solid var(--line); }
  .hero-stats li { padding: 15px 8px; }

  .values, .biz-grid, .biz-note { grid-template-columns: 1fr; }
  .partners { grid-template-columns: repeat(2,1fr); }
  .form-row { grid-template-columns: 1fr; }
  .era li { grid-template-columns: 62px 1fr; gap: 12px; font-size: .92rem; }
  .info-list > div, .spec-mini > div { grid-template-columns: 76px 1fr; gap: 12px; }
  .floats { right: 14px; bottom: 14px; }
  .float { width: 48px; height: 48px; }
}

/* ============================================================
   제품 상세페이지 (product.html)
   ============================================================ */

.page-hero {
  position: relative; min-height: 62svh;
  display: flex; align-items: flex-end; overflow: hidden;
  padding-top: var(--header-h);
}
.page-hero .hero-bg::after {
  background:
    linear-gradient(100deg, rgba(30,44,53,.88) 0%, rgba(30,44,53,.62) 50%, rgba(30,44,53,.36) 100%),
    linear-gradient(0deg, rgba(30,44,53,.92) 0%, rgba(30,44,53,0) 62%);
}
.page-hero .wrap { position: relative; z-index: 3; padding-block: 56px; }
.page-hero h1 {
  font-size: clamp(1.9rem, 4.6vw, 3.4rem); font-weight: 800;
  line-height: 1.16; letter-spacing: -.045em; margin: 0 0 16px; max-width: 18ch;
}
.page-hero .en-big {
  display: block; font-family: Inter, sans-serif; font-weight: 800;
  font-size: clamp(.82rem, 1.4vw, 1rem); letter-spacing: .2em;
  text-transform: uppercase; color: var(--yl); margin-bottom: 14px;
}
.page-hero p { color: var(--ink-2); max-width: 50ch; margin: 0; }

.crumb {
  display: flex; gap: 9px; align-items: center;
  font-size: .8rem; color: var(--muted); margin-bottom: 20px;
}
.crumb a:hover { color: var(--yl); }
.crumb i { font-style: normal; opacity: .5; }

/* 좌우 교차 */
.split {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: clamp(32px, 5vw, 78px); align-items: center;
}
.split + .split { margin-top: clamp(60px, 8vw, 116px); }
.split--flip .split-media { order: 2; }
.split-media { margin: 0; border-radius: var(--r); overflow: hidden; }
.split-body h3 {
  font-size: clamp(1.3rem, 2.4vw, 1.8rem); font-weight: 800;
  margin: 0 0 14px; letter-spacing: -.035em;
}
.split-body .en-sub {
  display: block; font-family: Inter, sans-serif; font-size: .74rem;
  font-weight: 700; letter-spacing: .18em; text-transform: uppercase;
  color: var(--mint); margin-bottom: 10px;
}
.split-body p { color: var(--ink-2); margin: 0 0 14px; }
.split-body p:last-child { margin-bottom: 0; }
.sec--lt .split-body p,
.sec--lt2 .split-body p { color: var(--lt-ink-2); }
.sec--lt .split-body .en-sub,
.sec--lt2 .split-body .en-sub { color: var(--mint); }

/* 특징 4칸 */
.features {
  display: grid; grid-template-columns: repeat(4,1fr);
  gap: 1px; background: var(--line); border: 1px solid var(--line);
}
.feature { background: #fff; padding: 32px 26px; }
.sec--alt .feature { background: #fff; }
.feature i {
  display: grid; place-items: center; width: 44px; height: 44px;
  border-radius: 50%; background: var(--mint-soft); color: var(--mint);
  margin-bottom: 18px;
}
.feature b { display: block; font-size: 1.02rem; margin-bottom: 8px; letter-spacing: -.03em; }
.feature p { margin: 0; font-size: .89rem; color: var(--ink-2); line-height: 1.72; }

/* 라이트 섹션용 변형 */
.sec--lt .features, .sec--lt2 .features {
  background: var(--lt-line); border-color: var(--lt-line);
}
.sec--lt .feature  { background: #fff; }
.sec--lt2 .feature { background: var(--lt-bg); }
.sec--lt .feature i, .sec--lt2 .feature i {
  background: var(--mint-soft); color: var(--mint);
}
.sec--lt .feature b, .sec--lt2 .feature b { color: var(--lt-ink); }
.sec--lt .feature p, .sec--lt2 .feature p { color: var(--lt-ink-2); }

/* 컬러 */
.colors { display: grid; grid-template-columns: repeat(3,1fr); gap: clamp(14px,2.2vw,24px); }
.color-card {
  border: 1px solid var(--line); border-radius: var(--r-card);
  overflow: hidden; background: #fff;
}
.color-card figure { margin: 0; aspect-ratio: 3/2; overflow: hidden; }
.color-card img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .6s var(--ease);
}
.color-card:hover img { transform: scale(1.06); }
.color-card .body { padding: 18px 20px 22px; display: flex; align-items: center; gap: 13px; }
.color-card .dot {
  width: 26px; height: 26px; border-radius: 50%;
  border: 1px solid rgba(27,40,48,.16); flex: none;
}
.color-card b { display: block; font-size: .98rem; letter-spacing: -.02em; }
.color-card em { font-style: normal; font-size: .78rem; color: var(--muted); }

/* 규격표 */
.spec-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.spec-table { width: 100%; min-width: 540px; border-collapse: collapse; font-size: .95rem; }
.spec-table thead th {
  background: var(--mint); color: #fff;
  font-family: Inter, sans-serif; font-weight: 800;
  font-size: .78rem; letter-spacing: .12em; text-transform: uppercase;
  padding: 15px 18px; text-align: left; white-space: nowrap;
}
.spec-table tbody td {
  padding: 16px 18px; border-bottom: 1px solid var(--line); color: var(--ink-2);
}
.spec-table tbody tr:hover td { background: rgba(27,40,48,.035); }
.spec-table tbody td:first-child {
  font-family: Inter, sans-serif; font-weight: 700; color: var(--ink);
}
.spec-caption { margin: 16px 0 0; font-size: .84rem; color: var(--muted); }

.sec--lt .spec-table tbody td, .sec--lt2 .spec-table tbody td {
  color: var(--lt-ink-2); border-bottom-color: var(--lt-line);
}
.sec--lt .spec-table tbody td:first-child,
.sec--lt2 .spec-table tbody td:first-child { color: var(--lt-ink); }
.sec--lt .spec-table tbody tr:hover td,
.sec--lt2 .spec-table tbody tr:hover td { background: rgba(18,33,29,.035); }
.sec--lt .spec-caption, .sec--lt2 .spec-caption { color: #7b8b86; }

/* 사용 장면 */
.uses { display: grid; grid-template-columns: repeat(4,1fr); gap: clamp(10px,1.6vw,18px); }
.use {
  position: relative; margin: 0; border-radius: var(--r);
  overflow: hidden; aspect-ratio: 3/4;
}
.use img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .7s var(--ease);
}
.use:hover img { transform: scale(1.07); }
.use figcaption {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 38px 18px 16px; color: #fff;
  font-size: .87rem; font-weight: 600; letter-spacing: -.02em;
  background: linear-gradient(0deg, rgba(24,36,44,.9), rgba(24,36,44,0));
}

/* 하단 CTA */
.cta-band { background: var(--yl); color: #12211d; padding: clamp(54px,8vw,90px) 0; }
.cta-band .wrap {
  display: flex; flex-wrap: wrap; gap: 28px;
  align-items: center; justify-content: space-between;
}
.cta-band h2 {
  font-size: var(--fs-h2); font-weight: 800;
  letter-spacing: -.04em; margin: 0 0 10px; line-height: 1.24;
}
.cta-band p { margin: 0; color: rgba(18,33,29,.75); }
.cta-band .acts { display: flex; flex-wrap: wrap; gap: 12px; }

@media (max-width: 1080px) {
  .features { grid-template-columns: repeat(2,1fr); }
  .uses { grid-template-columns: repeat(2,1fr); }
  .split { grid-template-columns: 1fr; }
  .split--flip .split-media, .split-media { order: -1; }
}
@media (max-width: 760px) {
  .page-hero { min-height: 50svh; }
  .features, .colors { grid-template-columns: 1fr; }
  .uses { grid-template-columns: repeat(2,1fr); gap: 9px; }
  .use { aspect-ratio: 1/1; }
  .cta-band .wrap { flex-direction: column; align-items: flex-start; }
}