/* ==========================================================================
   임팩트 맨홀시공 — 디자인 시스템
   컨셉: 주철(鑄鐵) 차콜 + 러스트 앰버. 도로/맨홀 인프라의 무게감을 담은
   산업형(industrial) 에디토리얼 스타일. 라운드 최소화, 모노스페이스 라벨.
   ========================================================================== */

:root {
  /* Primary — 차콜 아이언 (거의 블랙에 가까운 다크 그레이): 헤딩, 헤더/푸터, 다크 패널 */
  --color-primary:       #14181a;
  --color-primary-dark:  #0a0c0d;

  /* Accent — 러스트 앰버 (주철 맨홀 표면의 산화된 톤): 링크, 버튼, 배지 */
  --color-accent:        #d9781f;
  --color-accent-dark:   #b85f12;
  --color-accent-rgb:    217, 120, 31;

  --color-bg:            #f7f6f3;
  --color-bg-alt:        #eeece6;
  --color-bg-card:       #eae8e1;
  --color-text:          #1c1f21;
  --color-text-muted:    #63696d;
  --color-white:         #fff;

  --color-border:        #ded9cf;
  --color-border-accent: rgba(217, 120, 31, 0.3);

  --color-success:       #2f6b3c;
  --color-success-hover: #255a30;
  --color-success-alt:   #2f6b3c;

  --color-shadow:        20, 24, 26;

  --font-body:    'Pretendard', -apple-system, 'Apple SD Gothic Neo', sans-serif;
  --font-label:   'JetBrains Mono', 'Space Mono', monospace;
  --font-display: 'Big Shoulders Display', 'Noto Serif KR', sans-serif;

  --container-max: 1200px;
  --container-pad: 24px;
  --section-v: 112px;
  --radius: 0;
  --radius-full: 2px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

@media (max-width: 480px) {
  :root { --container-pad: 16px; }
}

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

body, p, h1, h2, h3, h4, h5, h6, li, td, th, a, span, div, button,
figure, figcaption, label, blockquote, dt, dd {
  word-break: keep-all;
  overflow-wrap: break-word;
}

html { font-size: 16px; scroll-behavior: smooth; }

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.8;
  font-weight: 400;
  letter-spacing: -0.01em;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { padding: 0; margin: 0; list-style: none; }
button { font-family: inherit; cursor: pointer; }

h1, h2, h3, h4 { font-weight: 800; letter-spacing: -0.03em; margin: 0; }

.container { max-width: var(--container-max); margin: 0 auto; padding: 0 var(--container-pad); }
.section { padding: var(--section-v) 0; }
@media (max-width: 1024px) { .section { padding: 80px 0; } }
@media (max-width: 768px)  { .section { padding: 60px 0; } }

.eyebrow {
  font-family: var(--font-label);
  font-size: .78rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--color-accent-dark);
  display: inline-block;
  margin-bottom: 14px;
}

.section-title {
  font-size: clamp(1.9rem, 3.6vw, 3rem);
  font-weight: 800;
  color: var(--color-primary);
}
.section-lead {
  color: var(--color-text-muted);
  font-size: 1.05rem;
  max-width: 640px;
  margin-top: 14px;
}

.hero-h1 {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 6.2vw, 5.4rem);
  font-weight: 700;
  line-height: .98;
  color: var(--color-primary);
}

/* 그리드 유틸 — 인라인 style 금지, 클래스로만 사용 */
.dp-g2 { display:grid; grid-template-columns:1fr 1fr; gap:28px; }
.dp-g3 { display:grid; grid-template-columns:repeat(3,1fr); gap:22px; }
.dp-g4 { display:grid; grid-template-columns:repeat(4,1fr); gap:20px; }
.dp-g5 { display:grid; grid-template-columns:repeat(5,1fr); gap:18px; }
.dp-stat3 { display:grid; grid-template-columns:repeat(3,1fr); gap:32px; text-align:center; align-items:center; }
.dp-stat4 { display:grid; grid-template-columns:repeat(4,1fr); gap:28px; text-align:center; align-items:center; }
/* 카드/뱃지/프로세스가 마지막 줄에 1개만 외톨이로 남지 않도록 항목 수에 맞는 배수만 사용 */
@media (max-width: 1024px) { .dp-g4 { grid-template-columns:repeat(2,1fr); } .dp-g5 { grid-template-columns:repeat(3,1fr); } .dp-stat4 { grid-template-columns:repeat(2,1fr); } }
@media (max-width: 768px)  { .dp-g2,.dp-g3,.dp-g4,.dp-g5 { grid-template-columns:1fr; } }
@media (max-width: 600px)  { .dp-stat3,.dp-stat4 { grid-template-columns:1fr; gap:16px; } }

/* 표 가로 스크롤 래퍼 */
.table-wrap { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; min-width: 480px; }
th, td { padding: 12px 14px; border: 1px solid var(--color-border); text-align: left; font-size: .95rem; }
th { background: var(--color-bg-alt); font-family: var(--font-label); font-size: .78rem; letter-spacing: .05em; text-transform: uppercase; color: var(--color-text-muted); }

/* 헤더 */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 500;
  height: 76px;
  display: flex; align-items: center;
  background: rgba(247,246,243,.86);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--color-border);
  transition: background .25s, box-shadow .25s;
}
.site-header.scrolled { background: rgba(247,246,243,.97); box-shadow: 0 6px 24px rgba(var(--color-shadow),.08); }
.hdr-inner { display: flex; align-items: center; justify-content: space-between; width: 100%; }
.hdr-brand { display: flex; flex-direction: column; line-height: 1.15; }
.hdr-logo { font-family: var(--font-display); font-size: 1.5rem; font-weight: 700; color: var(--color-primary); }
.hdr-logo span { color: var(--color-accent); }
.hdr-tagline { font-size: .62rem; font-weight: 500; letter-spacing: .02em; color: var(--color-text-muted); margin-top: 2px; }
.hdr-nav { display: flex; gap: 32px; font-size: .92rem; font-weight: 600; }
.hdr-nav a { position: relative; padding: 6px 0; }
.hdr-nav a::after { content:''; position:absolute; left:0; bottom:0; width:0; height:2px; background:var(--color-accent); transition:width .25s var(--ease); }
.hdr-nav a:hover::after { width:100%; }
.hdr-cta {
  font-family: var(--font-label); font-size: .8rem; letter-spacing:.1em; text-transform:uppercase;
  background: var(--color-primary); color: var(--color-white); padding: 11px 22px;
  border: 1px solid var(--color-primary); transition: background .2s, color .2s;
}
.hdr-cta:hover { background: var(--color-accent); border-color: var(--color-accent); color: var(--color-primary); }
.hamburger { display: none; flex-direction: column; gap: 5px; width: 28px; background:none; border:none; }
.hamburger span { display:block; height:2px; background:var(--color-primary); }

#mob-nav {
  position: fixed; top: 0; right: -100%; width: min(320px,84vw); height: 100vh; z-index: 900;
  background: var(--color-primary); padding: 100px 32px 32px; transition: right .3s var(--ease);
  display: flex; flex-direction: column; gap: 24px;
}
#mob-nav.open { right: 0; }
#mob-nav a { color: var(--color-white); font-size: 1.15rem; font-weight: 700; }
#mob-nav .mob-cta { font-family: var(--font-label); color: var(--color-accent); font-size:.85rem; letter-spacing:.1em; }
#mob-nav-close { position:absolute; top:28px; right:28px; background:none; border:none; color:var(--color-white); font-size:1.6rem; }

@media (max-width: 768px) {
  .site-header { height: 60px; }
  .hdr-nav, .hdr-cta, .hdr-phone { display: none; }
  .hamburger { display: flex; }
}

/* 히어로 */
.hero {
  padding-top: 156px; padding-bottom: 80px;
  background: linear-gradient(180deg, var(--color-bg-alt) 0%, var(--color-bg) 100%);
  position: relative; overflow: hidden;
}
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center; }
.hero-copy .eyebrow { margin-bottom: 18px; }
.hero-lead { margin-top: 22px; font-size: 1.1rem; color: var(--color-text-muted); max-width: 520px; }
.hero-cta-row { display: flex; gap: 16px; margin-top: 36px; flex-wrap: wrap; }
.hero-faq-grid {
  display: grid; grid-template-columns: repeat(4,1fr); grid-auto-rows: 1fr; gap: 10px;
  margin-top: 28px; max-width: 520px;
}
.hero-faq-badge {
  font-size: .76rem; font-weight: 600; text-align: center; padding: 10px 6px;
  border: 1px solid var(--color-border); background: var(--color-bg); color: var(--color-text-muted);
  transition: border-color .2s, color .2s;
}
.hero-faq-badge:hover { border-color: var(--color-accent); color: var(--color-primary); }
.hero-faq-more { background: var(--color-primary); color: var(--color-white); border-color: var(--color-primary); }
.hero-faq-more:hover { background: var(--color-accent); color: var(--color-primary); }
@media (max-width: 480px) { .hero-faq-badge { font-size: .68rem; padding: 8px 4px; } }
.hero-media { position: relative; }
.hero-mosaic { aspect-ratio: 4/5; }
.hero-mosaic img { filter: grayscale(.15); }
.hero-media::before {
  content: ''; position:absolute; inset:-14px auto auto -14px; width:120px; height:120px;
  border-top: 3px solid var(--color-accent); border-left: 3px solid var(--color-accent);
}
@keyframes hero-drift { 0%,100%{ transform:translateY(0);} 50%{ transform:translateY(-10px);} }
.hero-badge {
  position: absolute; bottom: -20px; left: -20px; background: var(--color-primary); color: var(--color-white);
  padding: 18px 22px; font-family: var(--font-label); font-size: .78rem; letter-spacing: .08em;
  animation: hero-drift 6s ease-in-out infinite;
}
.hero-badge b { display:block; font-family: var(--font-display); font-size: 1.7rem; color: var(--color-accent); }
@media (max-width: 1024px) { .hero-grid { grid-template-columns: 1fr; } .hero-media { order: -1; max-width: 420px; margin: 0 auto; } }
@media (max-width: 768px) { .hero { padding-top: 120px; } }

/* 세부페이지 히어로 — 이미지 위 컬러 오버레이 금지, 텍스트는 항상 단색 배경 위에 배치 */
.detail-hero { padding: 148px 0 64px; background: var(--color-bg-alt); }
.detail-hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; align-items: center; }
.detail-hero-copy h1 { font-family: var(--font-display); font-size: clamp(2.1rem,4vw,3.2rem); color: var(--color-primary); margin-top: 4px; }
.detail-hero-copy p { color: var(--color-text-muted); margin-top: 16px; max-width: 480px; }
/* 히어로 슬라이드쇼 — 순수 CSS 크로스페이드, 3장 이상 순환 노출 (오버레이 없음) */
.detail-hero-media, .hero-mosaic { position: relative; width: 100%; overflow: hidden; }
.detail-hero-media { height: 320px; }
.detail-hero-media img, .hero-mosaic img {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
  opacity: 0; animation: hero-slideshow 12s infinite;
}
.detail-hero-media img:nth-child(1), .hero-mosaic img:nth-child(1) { animation-delay: 0s; }
.detail-hero-media img:nth-child(2), .hero-mosaic img:nth-child(2) { animation-delay: 4s; }
.detail-hero-media img:nth-child(3), .hero-mosaic img:nth-child(3) { animation-delay: 8s; }
@keyframes hero-slideshow {
  0%   { opacity: 0; }
  4%   { opacity: 1; }
  29%  { opacity: 1; }
  33%  { opacity: 0; }
  100% { opacity: 0; }
}
@media (prefers-reduced-motion: reduce) {
  .detail-hero-media img, .hero-mosaic img { animation: none; opacity: 0; }
  .detail-hero-media img:first-child, .hero-mosaic img:first-child { opacity: 1; }
}
@media (max-width: 1024px) {
  .detail-hero-grid { grid-template-columns: 1fr; }
  .detail-hero-media { order: -1; height: 260px; }
}
@media (max-width: 640px) {
  .detail-hero { padding-top: 112px; }
  .detail-hero-media { height: 200px; }
}

/* 버튼 — 라운드 없음 */
.btn { display: inline-flex; align-items:center; gap:8px; padding: 14px 28px; font-family: var(--font-label); font-size: .82rem; letter-spacing: .14em; text-transform: uppercase; border-radius: var(--radius); transition: background .2s, color .2s, box-shadow .25s, transform .2s; border: 1px solid transparent; }
.btn-accent { background: var(--color-accent); color: var(--color-primary); }
.btn-accent:hover { background: var(--color-accent-dark); box-shadow: 0 10px 28px rgba(var(--color-accent-rgb),.3); transform: translateY(-2px); }
.btn-outline { border-color: rgba(255,255,255,.5); color: inherit; }
.btn-outline:hover { border-color: var(--color-accent); color: var(--color-accent-dark); }
.btn-dark { background: var(--color-primary); color: var(--color-white); }
.btn-dark:hover { background: var(--color-accent); color: var(--color-primary); }

/* 카드 */
.card {
  border: 1px solid var(--color-border); background: var(--color-white); padding: 32px 26px;
  position: relative; transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.card::after { content:''; position:absolute; left:0; bottom:0; width:100%; height:3px; background: var(--color-accent); transform: scaleX(0); transform-origin: left; transition: transform .3s var(--ease); }
.card:hover { transform: translateY(-6px); box-shadow: 0 20px 40px rgba(var(--color-shadow),.1); }
.card:hover::after { transform: scaleX(1); }
.card-num { font-family: var(--font-label); font-size: .78rem; color: var(--color-accent-dark); letter-spacing: .1em; }
.check-num { width: 36px; height: 36px; border-radius: 50%; background: var(--color-bg-alt); border: 1px solid var(--color-border); color: var(--color-accent-dark); font-family: var(--font-label); font-weight:700; display:flex; align-items:center; justify-content:center; }
.card h3 { font-size: 1.1rem; margin-top: 14px; }
.card p { color: var(--color-text-muted); font-size: .94rem; margin-top: 10px; }

.photo-card { border: 1px solid var(--color-border); background: var(--color-white); overflow: hidden; }
.photo-card img { aspect-ratio: 4/3; object-fit: cover; transition: transform .5s var(--ease), filter .5s var(--ease); filter: grayscale(.35); }
.photo-card:hover img { transform: scale(1.05); filter: grayscale(0); }
.photo-card-body { padding: 16px 18px; }
.photo-card-body .tag { font-family: var(--font-label); font-size: .72rem; letter-spacing:.08em; color: var(--color-accent-dark); }
.photo-card-body h3 { font-size: .98rem; margin-top: 6px; }

/* 세부페이지 내부링크 카드 — 애프터 썸네일 삽입형 */
.link-card {
  display: block; border: 1px solid var(--color-border); background: var(--color-white);
  overflow: hidden; position: relative; transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.link-card:hover { transform: translateY(-6px); box-shadow: 0 20px 40px rgba(var(--color-shadow),.1); }
.link-card-thumb { width: 100%; aspect-ratio: 16/10; object-fit: cover; filter: grayscale(.3); transition: filter .4s var(--ease), transform .4s var(--ease); }
.link-card:hover .link-card-thumb { filter: grayscale(0); transform: scale(1.05); }
.link-card-body { padding: 18px 20px; }
.link-card-badges { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 8px; }
.link-card-body h3 { font-size: 1.02rem; }
.link-card-body p { color: var(--color-text-muted); font-size: .88rem; margin-top: 6px; }
@media (max-width: 768px) {
  .link-card-badges { flex-direction: column; align-items: flex-start; gap: 4px; }
}

.tag, .badge { display: inline-block; background: var(--color-accent); color: var(--color-primary); font-family: var(--font-label); font-size: .72rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; padding: 5px 12px; border-radius: 4px; }
.badge-support { background: var(--color-success); color: var(--color-white); }

/* Before / After 정적 비교 (슬라이더 금지) */
.ba-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 4px; background: var(--color-primary); }
.ba-item { position: relative; }
.ba-item img { aspect-ratio: 3/4; object-fit: cover; }
.ba-cap { position:absolute; left:0; bottom:0; right:0; padding: 10px 14px; font-family: var(--font-label); font-size:.78rem; letter-spacing:.08em; color:#fff; background: rgba(10,12,13,.55); }
.ba-item.after .ba-cap { border-top: 2px solid var(--color-success-alt); background: rgba(47,107,60,.55); }
@media (max-width: 640px) { .ba-wrap { grid-template-columns: 1fr; } }

/* 프로세스 타임라인 */
.proc-track { display: flex; justify-content: space-between; position: relative; margin-top: 48px; }
.proc-step { flex: 1; text-align: center; position: relative; z-index: 2; padding: 0 12px; }
.proc-num { width: 52px; height: 52px; border-radius: 50%; background: var(--color-primary); color:#fff; font-family: var(--font-label); display:flex; align-items:center; justify-content:center; margin: 0 auto 16px; position: relative; z-index:2; }
.proc-track::before { content:''; position:absolute; top:26px; left:6%; right:6%; height:2px; background: var(--color-border); z-index:1; }
.proc-step h4 { font-size: .98rem; margin-top: 4px; }
.proc-step p { font-size: .86rem; color: var(--color-text-muted); margin-top: 6px; }
@media (max-width: 768px) {
  .proc-track { flex-direction: column; gap: 10px; }
  .proc-track::before { display:none; }
  .proc-step { display:grid; grid-template-columns: 52px 1fr; column-gap:16px; align-items:center; text-align:left; padding: 20px 0; border-bottom: 1px solid var(--color-border); }
  .proc-num { grid-row: 1 / 3; margin: 0; }
}

/* 상담 CTA 카드 */
.consult-panel {
  background:
    linear-gradient(rgba(var(--color-shadow),.88), rgba(var(--color-shadow),.88)),
    url('/assets/images/manhole/yongin-road-manhole-replace/after.webp') center/cover no-repeat;
  color: var(--color-white); padding: 64px 48px;
}
.consult-panel h2 { color: #fff; }
.consult-panel p { color: rgba(255,255,255,.75); }
.consult-btn-tel, .consult-btn-sms { display:flex; align-items:center; justify-content:center; gap:10px; padding: 18px; font-family: var(--font-label); font-size:.92rem; letter-spacing:.06em; }
.consult-btn-tel { background: var(--color-accent); color: var(--color-primary); }
.consult-btn-tel:hover { background: var(--color-accent-dark); }
.consult-btn-sms { border: 1px solid var(--color-border); color: var(--color-primary); background: transparent; }
.consult-btn-sms:hover { border-color: var(--color-accent); color: var(--color-accent-dark); }

/* 플로팅 / 스티키 CTA */
#float-cta {
  position: fixed; right: 28px; bottom: 28px; z-index: 400;
  background: var(--color-accent); color: var(--color-primary); font-family: var(--font-label);
  font-size: .8rem; letter-spacing: .06em; padding: 16px 22px; box-shadow: 0 12px 30px rgba(var(--color-shadow),.25);
}
#mob-bar { display: none; }
@media (max-width: 768px) {
  #float-cta { display: none; }
  body { padding-bottom: 68px; }
  #mob-bar {
    display: flex; position: fixed; left:0; right:0; bottom:0; z-index: 800; height: 64px;
  }
  #mob-bar a { flex:1; display:flex; align-items:center; justify-content:center; gap:8px; font-family: var(--font-label); font-size:.85rem; }
  #mob-bar .m-tel { background: var(--color-accent); color: var(--color-primary); }
  #mob-bar .m-sms { background: var(--color-primary); color: #fff; }
}

/* FAQ 아코디언 */
.faq-item { border-bottom: 1px solid var(--color-border); }
.faq-q { display:flex; justify-content:space-between; align-items:center; gap:16px; padding: 22px 0; font-weight: 700; background:none; border:none; width:100%; text-align:left; font-size: 1rem; color: var(--color-primary); }
.faq-q .plus { font-family: var(--font-label); color: var(--color-accent-dark); transition: transform .3s var(--ease); }
.faq-item.open .plus { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .35s var(--ease); }
.faq-a p { padding: 0 0 22px; color: var(--color-text-muted); font-size: .95rem; }

/* 통계 카운터 */
.stat-num { font-family: var(--font-display); font-size: clamp(2rem,4vw,3rem); color: var(--color-accent); }
.stat-label { font-family: var(--font-label); font-size: .78rem; letter-spacing:.08em; color: var(--color-text-muted); margin-top: 6px; }

/* 패럴랙스 섹션 (선택적으로 페이지마다 유무 랜덤) */
.parallax-section {
  position: relative; padding: 140px 0; background-attachment: fixed; background-size: cover; background-position: center;
  background-color: var(--color-primary);
}
.parallax-section::before { content:''; position:absolute; inset:0; background: rgba(10,12,13,.68); }
.parallax-section .container { position: relative; z-index: 2; color: #fff; }
.parallax-section h2 { color: #fff; }
@media (max-width: 768px) { .parallax-section { background-attachment: scroll; padding: 90px 0; } }

/* 스크롤 리빌 */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.visible { opacity: 1; transform: translateY(0); }
.stagger > * { transition-delay: calc(var(--i,0) * 90ms); }

/* 푸터 */
.site-footer { background: var(--color-primary); color: rgba(255,255,255,.7); padding: 72px 0 32px; }
.footer-grid { display: grid; grid-template-columns: 1fr 1fr; max-width: 480px; gap: 40px; }
.footer-grid h4 { color: #fff; font-family: var(--font-label); font-size: .78rem; letter-spacing: .1em; text-transform: uppercase; margin-bottom: 18px; }
.footer-grid a, .footer-grid li { display:block; font-size: .9rem; margin-bottom: 10px; color: rgba(255,255,255,.65); }
.footer-grid a:hover { color: var(--color-accent); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.12); margin-top: 48px; padding-top: 24px; font-size: .82rem; color: rgba(255,255,255,.45); }
@media (max-width: 768px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .footer-grid { grid-template-columns: 1fr; } }

/* 사이트맵 페이지 전용 */
.sm-cat h2 { font-family: var(--font-display); font-size: 2.4rem; color: var(--color-border); -webkit-text-stroke: 1px var(--color-primary); }

/* 유틸 */
.text-center { text-align: center; }
.mt-lg { margin-top: 64px; }
.pill-note { font-family: var(--font-label); font-size: .78rem; color: var(--color-text-muted); letter-spacing: .04em; }