/* ═══════════════════════════════════════════════════════════
   어울림 회사소개 — 신뢰형 코퍼레이트 리디자인
   - 딥 네이비 액센트 + 화이트 베이스
   - 사이드바 강한 컬러 면 + 본문 정갈한 그리드
   - 헤더는 원본 구조 유지, 액센트 컬러만 통일
═══════════════════════════════════════════════════════════ */

@import url("https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/pretendard.min.css");

:root {
  /* 원본 헤더 토큰 */
  --bg:        #ffffff;
  --line:      #e6e8ec;
  --accent:    #15233f;        /* 딥 네이비 — 헤더 활성 라인 */

  /* 본문 팔레트 */
  --c-bg:        #ffffff;
  --c-bg-soft:   #f6f8fb;
  --c-bg-rail:   #15233f;       /* 좌측 레일 — 딥 네이비 */
  --c-bg-rail-2: #1d2d4d;
  --c-line:      #e6e8ec;
  --c-line-2:    #d8dde5;
  --c-text:      #0e1a30;
  --c-text-2:    #2c3a52;
  --c-text-3:    #5a6478;
  --c-text-4:    #8a93a4;
  --c-accent:    #15233f;
  --c-accent-soft:#eaeef5;

  --t-h1:       30px;
  --t-h2:       22px;
  --t-h3:       16px;
  --t-body:     14.5px;
  --t-meta:     12px;
  --t-eyebrow:  11px;

  --w-r: 400; --w-m: 500; --w-s: 600; --w-b: 700;

  --font: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* , *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  color: var(--c-text);
  background: var(--bg);
  font-size: var(--t-body);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  word-break: keep-all;
  overflow-wrap: break-word;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

/* ═══════════════════════════════════════════════════
   HEADER — 원본 구조 유지
═══════════════════════════════════════════════════ */
.site-header {
  position: sticky; top: 0; z-index: 20;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex; flex-direction: column; align-items: center;
  max-width: 1760px; width: 92%; margin: 0 auto; padding: 0;
}
.header-logo-wrap {
  display: flex; justify-content: center; align-items: center;
  height: 70px; width: 100%;
}
.logo-link { display: flex; justify-content: center; align-items: center; }
.logo-link img { max-width: 400px; max-height: 44px; width: auto; height: auto; }
.header-nav { width: 100%; }
.header-nav-list {
  list-style: none; display: flex;
  align-items: center; justify-content: center;
}
.header-nav-list li {
  height: 50px; display: flex; align-items: center;
  padding: 0 25px; position: relative;
}
.header-nav-list li a {
  font-size: 14px; font-weight: 500; color: #3a3a3a;
  text-decoration: none; white-space: nowrap;
  line-height: 48px; display: block; position: relative;
}
.header-nav-list li a::after {
  content: ""; position: absolute; bottom: 0; left: 0;
  width: 100%; height: 2px; background-color: #cfcfcf;
  transform: scaleX(0); transform-origin: 100% 0;
  transition: transform 0.3s cubic-bezier(0.45,0.46,0.05,0.96);
}
.header-nav-list li a:hover::after,
.header-nav-list li a[aria-current="page"]::after {
  transform: scaleX(1); transform-origin: 0 0;
  transition: transform 0.5s cubic-bezier(0.45,0.46,0.05,0.96);
}
.header-nav-list li a[aria-current="page"]::after { background-color: var(--accent); }

@media (min-width: 600px) {
  .header-logo-wrap { height: 70px; } .logo-link img { max-height: 44px; }
  .header-nav-list li { height: 56px; padding: 0 30px; }
  .header-nav-list li a { line-height: 54px; font-size: 14px; }
}
@media (min-width: 860px) {
  .header-logo-wrap { height: 80px; } .logo-link img { max-height: 52px; }
  .header-nav-list li { height: 60px; padding: 0 34px; }
  .header-nav-list li a { line-height: 58px; }
}
@media (max-width: 599px) {
  .header-inner { width: 100%; }
  .header-logo-wrap { height: 54px; } .logo-link img { max-height: 32px; }
  .header-nav { width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; scrollbar-width: none; }
  .header-nav::-webkit-scrollbar { display: none; }
  .header-nav-list { justify-content: flex-start; padding: 0 12px; }
  .header-nav-list li { padding: 0 14px; height: 44px; }
  .header-nav-list li a { font-size: 13px; line-height: 42px; }
}

/* ═══════════════════════════════════════════════════
   HERO BANNER — 신뢰형 풀폭 인트로
═══════════════════════════════════════════════════ */
.hero-banner {
  background: linear-gradient(180deg, #f6f8fb 0%, #ffffff 100%);
  border-bottom: 1px solid var(--c-line);
}
.hero-banner-inner {
  max-width: 1200px; margin: 0 auto;
  padding: 80px 40px 72px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 48px;
  align-items: end;
}
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--mono);
  font-size: var(--t-eyebrow);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-accent);
  font-weight: var(--w-s);
  margin-bottom: 20px;
}
.hero-eyebrow::before {
  content: ""; width: 24px; height: 1px; background: var(--c-accent);
}
.hero-banner h1 {
  font-size: var(--t-h1);
  font-weight: var(--w-b);
  letter-spacing: -0.02em;
  line-height: 1.35;
  color: var(--c-text);
  margin-bottom: 18px;
  max-width: 22ch;
}
.hero-banner p {
  font-size: var(--t-body);
  color: var(--c-text-2);
  line-height: 1.85;
  max-width: 56ch;
}
.hero-stamp {
  display: grid;
  grid-template-rows: auto auto;
  gap: 4px;
  padding: 18px 22px;
  background: var(--c-accent);
  color: #fff;
  border-radius: 4px;
  min-width: 200px;
}
.hero-stamp .label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.6);
}
.hero-stamp .value {
  font-size: 14px;
  font-weight: var(--w-s);
  letter-spacing: -0.01em;
}

/* ═══════════════════════════════════════════════════
   MAIN GRID — 좌 인덱스 + 우 본문
═══════════════════════════════════════════════════ */
.vb-main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 64px 40px 96px;
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 72px;
  align-items: start;
}

/* ── 좌측 인덱스 ── */
.vb-index {
  position: sticky;
  top: 180px;
  background: var(--c-bg-soft);
  border: 1px solid var(--c-line);
  border-radius: 6px;
  padding: 18px 16px;
}
.vb-index-title {
  font-family: var(--mono);
  font-size: var(--t-eyebrow);
  letter-spacing: 0.18em;
  color: var(--c-text-3);
  text-transform: uppercase;
  font-weight: var(--w-s);
  padding: 4px 8px 12px;
  margin-bottom: 8px;
  border-bottom: 1px solid var(--c-line);
}
.vb-index-list { display: flex; flex-direction: column; gap: 2px; }
.vb-index-list a {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 10px;
  border-radius: 4px;
  font-size: var(--t-body);
  color: var(--c-text-3);
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
}
.vb-index-list a span {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: var(--w-s);
  color: var(--c-text-4);
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: 3px;
  padding: 3px 6px;
  flex-shrink: 0;
  transition: all 0.2s var(--ease);
}
.vb-index-list a:hover { color: var(--c-text); background: #fff; }
.vb-index-list a.is-active {
  color: #fff;
  background: var(--c-accent);
  font-weight: var(--w-m);
}
.vb-index-list a.is-active span {
  background: rgba(255,255,255,0.15);
  border-color: rgba(255,255,255,0.25);
  color: #fff;
}

/* ── 본문 ── */
.vb-article { max-width: 720px; }

.vb-sec {
  padding: 28px 0 48px;
  scroll-margin-top: 200px;
}
.vb-sec + .vb-sec {
  border-top: 1px solid var(--c-line);
  padding-top: 48px;
}

/* 섹션 헤더 — 신뢰감 있는 번호판 + 라인 */
.vb-sec-head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 18px;
  align-items: center;
  margin-bottom: 28px;
  padding-bottom: 18px;
  border-bottom: 2px solid var(--c-accent);
}
.vb-sec p.vb-sec-num {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: var(--w-b);
  color: #fff;
  background: var(--c-accent);
  padding: 6px 10px;
  border-radius: 3px;
  letter-spacing: 0.04em;
  margin-bottom: 0;
}
.vb-sec h2 {
  font-size: var(--t-h2);
  font-weight: var(--w-s);
  letter-spacing: -0.015em;
  color: var(--c-text);
}
.vb-sec p {
  font-size: var(--t-body);
  color: var(--c-text-2);
  line-height: 1.85;
  margin-bottom: 22px;
}

/* 정의형 표 (회사 개요 / 문의) */
.vb-spec {
  border-top: 1px solid var(--c-text);
  margin-top: 8px;
}
.vb-spec li {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 24px;
  padding: 14px 4px;
  border-bottom: 1px solid var(--c-line);
  align-items: baseline;
}
.vb-spec li span {
  font-size: var(--t-body);
  color: var(--c-text-3);
  font-weight: var(--w-m);
}
.vb-spec li strong {
  font-size: var(--t-body);
  font-weight: var(--w-s);
  color: var(--c-text);
}

/* 서비스 그리드 (업무 영역) — 카드형 */
.vb-services {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 8px;
}
.vb-services li {
  background: var(--c-bg-soft);
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--c-accent);
  border-radius: 4px;
  padding: 18px 18px;
}
.vb-svc-key {
  display: flex; align-items: center; gap: 8px;
  font-size: var(--t-body);
  font-weight: var(--w-s);
  color: var(--c-text);
  margin-bottom: 6px;
}
.vb-svc-key::before {
  content: attr(data-key);
  font-family: var(--mono);
  font-size: 10px;
  background: var(--c-accent);
  color: #fff;
  padding: 2px 6px;
  border-radius: 2px;
  letter-spacing: 0.04em;
}
.vb-services li p:not(.vb-svc-key) {
  font-size: 13.5px;
  color: var(--c-text-3);
  line-height: 1.7;
}

/* 작업 방식 — 단계 라인 */
.vb-steps {
  margin-top: 8px;
  border-left: 1px dashed var(--c-line-2);
  padding-left: 0;
}
.vb-steps li {
  position: relative;
  padding: 14px 0 22px 28px;
}
.vb-steps li::before {
  content: attr(data-step);
  position: absolute;
  left: -16px; top: 14px;
  width: 32px; height: 32px;
  background: #fff;
  border: 1.5px solid var(--c-accent);
  color: var(--c-accent);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: var(--w-b);
}
.vb-step-key {
  font-size: var(--t-body);
  font-weight: var(--w-s);
  color: var(--c-text);
  margin-bottom: 4px;
}
.vb-steps li p:not(.vb-step-key) {
  font-size: 13.5px;
  color: var(--c-text-3);
  line-height: 1.75;
}

/* ═══════════════════════════════════════════════════
   작업 프로세스 — 사진 + 단계 정보 (zigzag)
═══════════════════════════════════════════════════ */
.vb-sec-wide { /* 사진을 본문보다 살짝 넓게 — 그러나 전체 그리드 안에서만 */ }
.vb-sec-wide .vb-sec-head + p { max-width: 62ch; }

.vb-flow {
  display: flex;
  flex-direction: column;
  gap: 28px;
  margin-top: 12px;
  padding-top: 8px;
}

.vb-flow-item {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 28px;
  align-items: stretch;
  position: relative;
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: 6px;
  overflow: hidden;
  transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease), transform 0.25s var(--ease);
}
.vb-flow-item:hover {
  border-color: var(--c-line-2);
  box-shadow: 0 8px 28px -18px rgba(21,35,63,0.25);
  transform: translateY(-2px);
}

/* 짝수 단계는 좌우 반전 — zigzag 리듬 */
.vb-flow-item:nth-child(even) {
  grid-template-columns: 1fr 1.05fr;
}
.vb-flow-item:nth-child(even) .vb-flow-media { order: 2; }
.vb-flow-item:nth-child(even) .vb-flow-body  { order: 1; }

/* 좌측 단계 인디케이터 — 좌측 가장자리 라인 + 번호 */
.vb-flow-item::before {
  content: attr(data-step);
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: var(--w-b);
  letter-spacing: 0.08em;
  color: #fff;
  background: var(--c-accent);
  padding: 5px 8px;
  border-radius: 2px;
}
.vb-flow-item:nth-child(even)::before {
  /* 짝수 단계에서도 사진 좌상단에 배지가 오도록 */
  left: auto;
  right: 14px;
}

/* 미디어 — 사진 카드 */
.vb-flow-media {
  position: relative;
  margin: 0;
  background: var(--c-bg-soft);
  overflow: hidden;
  min-height: 260px;
}
.vb-flow-media img {
  width: 100%;
  height: 100%;
  min-height: 260px;
  max-height: 320px;
  object-fit: cover;
  display: block;
  transition: transform 0.6s var(--ease);
}
.vb-flow-item:hover .vb-flow-media img { transform: scale(1.025); }
.vb-flow-media figcaption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 10px 14px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: #fff;
  background: linear-gradient(180deg, rgba(14,26,48,0) 0%, rgba(14,26,48,0.78) 100%);
  text-transform: uppercase;
  font-weight: var(--w-s);
}

/* 본문 */
.vb-flow-body {
  padding: 26px 28px 28px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
}
.vb-flow-num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--c-accent);
  font-weight: var(--w-s);
  text-transform: uppercase;
  margin-bottom: 4px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.vb-flow-num::before {
  content: "";
  width: 18px; height: 1px;
  background: var(--c-accent);
}
.vb-flow-title {
  font-size: 18px;
  font-weight: var(--w-s);
  letter-spacing: -0.012em;
  color: var(--c-text);
  margin-bottom: 8px;
  line-height: 1.4;
}
.vb-flow-desc {
  font-size: 13.5px !important;
  color: var(--c-text-2) !important;
  line-height: 1.78 !important;
  margin: 0 !important;
}
.vb-flow-note {
  margin-top: 10px !important;
  margin-bottom: 0 !important;
  font-family: var(--mono);
  font-size: 10.5px !important;
  letter-spacing: 0.06em;
  color: var(--c-text-3) !important;
  background: var(--c-bg-soft);
  border: 1px solid var(--c-line);
  border-radius: 2px;
  padding: 4px 8px;
  display: inline-block;
  width: fit-content;
  line-height: 1.4 !important;
}

/* 모바일 — 세로 스택 */
@media (max-width: 720px) {
  .vb-flow-item,
  .vb-flow-item:nth-child(even) {
    grid-template-columns: 1fr;
  }
  .vb-flow-item:nth-child(even) .vb-flow-media { order: 1; }
  .vb-flow-item:nth-child(even) .vb-flow-body  { order: 2; }
  .vb-flow-item::before,
  .vb-flow-item:nth-child(even)::before {
    left: 12px; right: auto; top: 12px;
  }
  .vb-flow-media,
  .vb-flow-media img { min-height: 220px; max-height: 240px; }
  .vb-flow-body { padding: 22px 22px 24px; }
}

/* 작업 원칙 — 체크 아이콘 행 */
.vb-principle {
  margin-top: 8px;
  border-top: 1px solid var(--c-line);
}
.vb-principle li {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 14px;
  padding: 18px 0;
  border-bottom: 1px solid var(--c-line);
  align-items: start;
}
.vb-principle li::before {
  content: "";
  display: block;
  width: 18px; height: 18px;
  margin-top: 2px;
  border-radius: 50%;
  background: var(--c-accent);
  background-image: linear-gradient(135deg, transparent 30%, transparent 30%);
  position: relative;
}
.vb-principle li {
  position: relative;
}
.vb-principle li::after {
  content: "";
  position: absolute;
  left: 5px; top: 8px;
  width: 8px; height: 4px;
  border-left: 1.5px solid #fff;
  border-bottom: 1.5px solid #fff;
  transform: rotate(-45deg);
}
.vb-pr-name {
  font-size: var(--t-body);
  font-weight: var(--w-s);
  color: var(--c-text);
  margin-bottom: 4px;
}
.vb-principle li p:not(.vb-pr-name) {
  font-size: 13.5px;
  color: var(--c-text-3);
  line-height: 1.75;
}

/* 문의 버튼 */
.vb-btn {
  display: inline-flex; align-items: center; gap: 10px;
  margin-top: 16px;
  padding: 13px 24px;
  background: var(--c-accent);
  color: #fff;
  font-size: var(--t-body);
  font-weight: var(--w-m);
  letter-spacing: 0.01em;
  border-radius: 4px;
  transition: background 0.2s var(--ease), transform 0.2s var(--ease);
}
.vb-btn:hover { background: var(--c-bg-rail-2); transform: translateY(-1px); }

/* FOOTER */
.vb-footer {
  border-top: 1px solid var(--c-line);
  background: var(--c-bg-soft);
  padding: 28px 40px;
}
.vb-footer-inner {
  max-width: 1200px; margin: 0 auto;
  display: flex; justify-content: space-between; align-items: center;
  font-family: var(--mono);
  font-size: var(--t-eyebrow);
  color: var(--c-text-3);
  letter-spacing: 0.04em;
}

/* REVEAL */
.reveal {
  opacity: 0; transform: translateY(8px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* RESPONSIVE */
@media (max-width: 920px) {
  .hero-banner-inner { grid-template-columns: 1fr; gap: 28px; padding: 56px 24px 48px; }
  .vb-main { grid-template-columns: 1fr; gap: 28px; padding: 40px 24px 64px; }
  .vb-index { position: static; }
  .vb-services { grid-template-columns: 1fr; }
  .vb-spec li { grid-template-columns: 1fr; gap: 4px; padding: 12px 0; }
  .vb-footer-inner { flex-direction: column; gap: 8px; align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}