/* =========================================================
   누수탐지업체 — 누수 진단 리포트 컨셉 디자인 시스템
   메인: 아이보리 / 서브: 진회색 / 강조: 검정 / 포인트: 딥그린
   ========================================================= */

:root{
  --ivory:       #EDE6D6;
  --ivory-soft:  #F5F1E7;
  --ivory-line:  #DCD3BE;
  --charcoal:    #3B3A35;
  --black:       #17160F;
  --green:       #1E3D2E;
  --green-light: #2F5C43;
  --green-pale:  #E7EDE6;
  --text-main:   #211F19;
  --text-sub:    #6C6A5F;
  --radius-sm: 6px;
  --radius-md: 14px;
  --radius-lg: 28px;
  --shadow-card: 0 18px 40px -22px rgba(23,22,15,.45);
  --wrap: 1160px;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family:'Pretendard', -apple-system, BlinkMacSystemFont, 'Malgun Gothic', sans-serif;
  background:var(--ivory-soft);
  color:var(--text-main);
  line-height:1.6;
  word-break:keep-all;
  overflow-wrap:break-word;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
h1,h2,h3,h4,p,dl,dd{ margin:0; }
ul{ margin:0; padding:0; list-style:none; }
.wrap{ max-width:var(--wrap); margin:0 auto; padding:0 24px; }

.eyebrow{
  display:inline-block;
  font-size:13px;
  font-weight:700;
  letter-spacing:.14em;
  color:var(--green-light);
  text-transform:uppercase;
  margin-bottom:14px;
}

/* ---------- 헤더 ---------- */
.site-header{
  position:sticky; top:0; z-index:100;
  background:rgba(237,230,214,.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--ivory-line);
}
.site-header__inner{
  display:flex; align-items:center; justify-content:space-between;
  height:72px; gap:24px; flex-wrap:wrap;
}
.brand{ font-size:19px; font-weight:800; letter-spacing:-.01em; color:var(--black); }
.site-nav{ display:flex; gap:28px; font-size:14px; font-weight:600; color:var(--charcoal); }
.site-nav a:hover{ color:var(--green); }
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  padding:12px 26px; border-radius:999px; font-weight:700; font-size:15px;
  background:var(--green); color:var(--ivory-soft);
  transition:transform .15s ease, background .15s ease;
}
.btn:hover{ background:var(--green-light); transform:translateY(-1px); }
.btn--header{ padding:10px 22px; font-size:14px; }
.btn--ghost{ background:transparent; color:var(--ivory-soft); border:1px solid rgba(237,230,214,.5); }
.btn--ghost:hover{ background:rgba(237,230,214,.12); }
.btn--lg{ padding:16px 36px; font-size:16px; }

.nav-toggle-input{ position:absolute; opacity:0; width:0; height:0; pointer-events:none; }
.nav-toggle-btn{
  display:none; flex-direction:column; justify-content:center; gap:5px;
  width:26px; height:20px; cursor:pointer;
}
.nav-toggle-btn span{ display:block; height:2px; border-radius:2px; background:var(--black); }

@media (max-width:760px){
  .brand{ order:1; }
  .btn--header{ order:2; }
  .nav-toggle-btn{ display:flex; order:3; }
  .site-nav{
    display:none; order:4; width:100%; flex-direction:column; gap:0;
    border-top:1px solid var(--ivory-line); margin-top:12px;
  }
  .site-nav a{ padding:14px 4px; border-bottom:1px solid var(--ivory-line); }
  .nav-toggle-input:checked ~ .site-nav{ display:flex; }
}

/* ---------- 히어로 ---------- */
.hero{
  position:relative;
  background:var(--black);
  color:var(--ivory-soft);
  overflow:hidden;
  padding:96px 0 80px;
}
.hero::before,
.hero::after{
  content:"";
  position:absolute;
  border-radius:50%;
  filter:blur(60px);
  opacity:.5;
}
.hero::before{
  width:520px; height:420px;
  background:radial-gradient(circle at 30% 30%, rgba(59,58,53,.9), transparent 70%);
  top:-140px; right:-120px;
}
.hero::after{
  width:420px; height:420px;
  background:radial-gradient(circle at 60% 40%, rgba(31,61,46,.55), transparent 70%);
  bottom:-180px; left:-100px;
}
.hero__inner{ position:relative; z-index:1; max-width:760px; }
.hero h1{
  font-size:13px;
  font-weight:700;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--green-light);
  margin-bottom:18px;
}
.hero__headline{
  font-size:clamp(32px,5vw,54px);
  font-weight:800;
  line-height:1.28;
  letter-spacing:-.01em;
  color:#fff;
}
.hero__headline em{ color:var(--green-light); font-style:normal; }
.hero__sub{
  margin-top:24px;
  font-size:clamp(15px,1.6vw,18px);
  color:rgba(237,230,214,.78);
  max-width:520px;
}
.hero__actions{ margin-top:36px; display:flex; gap:14px; flex-wrap:wrap; }
.hero__badge{
  display:flex; gap:10px; margin-top:56px; flex-wrap:wrap;
}
.hero__badge span{
  font-size:12.5px; font-weight:600; color:rgba(237,230,214,.65);
  border:1px solid rgba(237,230,214,.25); border-radius:999px; padding:7px 16px;
  white-space:nowrap;
}

/* ---------- 퍼즐형 이미지 레이아웃 (Section 2) ---------- */
.puzzle-section{ padding:88px 0 64px; }
.puzzle-head{ max-width:600px; margin-bottom:44px; }
.puzzle-head h2{ font-size:clamp(24px,3.4vw,34px); font-weight:800; letter-spacing:-.01em; }
.puzzle-head p{ margin-top:12px; color:var(--text-sub); font-size:15.5px; }

.puzzle{
  display:grid;
  grid-template-columns:repeat(6,1fr);
  grid-template-rows:repeat(2,260px);
  gap:18px;
}
.puzzle-card{
  position:relative;
  border-radius:var(--radius-md);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  display:flex; align-items:flex-end;
  padding:22px;
  color:#fff;
}
.puzzle-card__img{ position:absolute; inset:0; width:100%; height:100%; object-fit:cover; z-index:0; }
.puzzle-card::after{
  content:""; position:absolute; inset:0; z-index:1;
  background:linear-gradient(to top, rgba(23,22,15,.8) 0%, rgba(23,22,15,.15) 55%, transparent 75%);
}
.puzzle-card__label{ position:relative; z-index:2; font-weight:700; font-size:16px; }
.puzzle-card__label small{ display:block; font-weight:500; font-size:12.5px; opacity:.75; margin-top:3px; }
.puzzle-card--main{ grid-column:1 / 4; grid-row:1 / 3; z-index:2; }
.puzzle-card--main .puzzle-card__label{ font-size:21px; }
.puzzle-card--a{ grid-column:4 / 7; grid-row:1 / 2; }
.puzzle-card--b{ grid-column:4 / 7; grid-row:2 / 3; }

@media (max-width:840px){
  .puzzle{ grid-template-columns:repeat(2,1fr); grid-template-rows:280px 200px; }
  .puzzle-card--main{ grid-column:1/3; grid-row:1/2; }
  .puzzle-card--a{ grid-column:1/2; grid-row:2/3; margin:0; }
  .puzzle-card--b{ grid-column:2/3; grid-row:2/3; margin:0; }
  .puzzle-card__label small{ font-size:13.5px; line-height:1.5; }
}

/* ---------- 큰 글씨 섹션 (Section 3) ---------- */
.statement{
  background:var(--ivory);
  padding:100px 0;
  text-align:center;
  border-top:1px solid var(--ivory-line);
  border-bottom:1px solid var(--ivory-line);
}
.statement__inner{ max-width:760px; margin:0 auto; }
.statement h2{
  font-size:clamp(24px,4vw,38px);
  font-weight:800;
  line-height:1.5;
  letter-spacing:-.01em;
}
.statement h2 .accent{
  color:var(--green);
  position:relative;
}
.statement p{ margin-top:22px; color:var(--text-sub); font-size:16px; }

/* ---------- 섹션 공통 헤딩 ---------- */
.section{ padding:88px 0; }
.section-head{ max-width:620px; margin:0 auto 48px; text-align:center; }
.section-head h2{ font-size:clamp(24px,3.4vw,32px); font-weight:800; letter-spacing:-.01em; }
.section-head p{ margin-top:12px; color:var(--text-sub); font-size:15.5px; }
.section--dark{ background:var(--charcoal); color:var(--ivory-soft); }
.section--dark .section-head p{ color:rgba(237,230,214,.65); }
.section--tint{ background:var(--green-pale); border-top:1px solid var(--ivory-line); border-bottom:1px solid var(--ivory-line); }

/* ---------- 진단 유형 카드 (Section 4) ---------- */
.diagnosis-grid{
  display:grid; grid-template-columns:repeat(5,1fr); gap:16px;
}
.diagnosis-card{
  background:var(--ivory-soft);
  border:1px solid var(--ivory-line);
  border-radius:var(--radius-md);
  padding:28px 20px;
  text-align:center;
}
.diagnosis-card__icon{
  width:52px; height:52px; margin:0 auto 16px;
  border-radius:50%;
  background:var(--green-pale);
  display:flex; align-items:center; justify-content:center;
}
.diagnosis-card__icon svg{ width:24px; height:24px; stroke:var(--green); }
.diagnosis-card h3{ font-size:15.5px; font-weight:700; }

@media (max-width:900px){ .diagnosis-grid{ grid-template-columns:repeat(2,1fr); } .diagnosis-card:last-child{ grid-column:span 2; } }

/* ---------- NSEO 서비스 카드 (Section 5) ---------- */
.services-grid{
  display:grid; grid-template-columns:repeat(5,1fr); gap:16px;
}
.service-card{
  display:block;
  background:var(--black);
  color:var(--ivory-soft);
  border-radius:var(--radius-md);
  padding:28px 22px;
  min-height:190px;
  position:relative;
  overflow:hidden;
  transition:transform .18s ease;
}
.service-card:hover{ transform:translateY(-4px); }
.service-card::after{
  content:"";
  position:absolute; inset:0;
  background:radial-gradient(circle at 85% 15%, rgba(47,92,67,.55), transparent 60%);
}
.service-card__num{ position:relative; z-index:1; font-size:12.5px; color:var(--green-light); font-weight:700; letter-spacing:.08em; }
.service-card h3{ position:relative; z-index:1; margin-top:44px; font-size:17px; font-weight:800; line-height:1.4; }
.service-card p{ position:relative; z-index:1; margin-top:10px; font-size:12.5px; color:rgba(237,230,214,.62); line-height:1.55; }
.service-card__arrow{ position:relative; z-index:1; display:inline-block; margin-top:16px; font-size:13px; font-weight:700; color:var(--ivory-soft); }

@media (max-width:900px){ .services-grid{ grid-template-columns:repeat(2,1fr); } .service-card:last-child{ grid-column:span 2; } }

/* ---------- 진단 과정 타임라인 (Section 6) ---------- */
.timeline{ max-width:720px; margin:0 auto; position:relative; }
.timeline::before{
  content:""; position:absolute; left:23px; top:8px; bottom:8px; width:2px;
  background:var(--ivory-line);
}
.timeline-step{ position:relative; display:flex; gap:24px; padding-bottom:40px; }
.timeline-step:last-child{ padding-bottom:0; }
.timeline-step__dot{
  flex:none; width:48px; height:48px; border-radius:50%;
  background:var(--green); color:#fff; font-weight:800; font-size:15px;
  display:flex; align-items:center; justify-content:center;
  position:relative; z-index:1;
}
.timeline-step__body h3{ font-size:17px; font-weight:800; margin-top:6px; }
.timeline-step__body p{ margin-top:6px; color:var(--text-sub); font-size:14.5px; }

/* ---------- Before / After 시공 사례 (Section 7) ---------- */
.compare{ display:grid; grid-template-columns:1fr 1fr; gap:0; border-radius:var(--radius-lg); overflow:hidden; box-shadow:var(--shadow-card); }
.compare__panel{ padding:32px; display:flex; flex-direction:column; gap:16px; position:relative; }
.compare__panel--before{ background:linear-gradient(160deg, var(--ivory) 0%, var(--charcoal) 130%); color:#fff; }
.compare__panel--after{ background:linear-gradient(160deg, var(--green) 0%, var(--green-light) 130%); color:#fff; }
.compare__tag{ font-size:13px; font-weight:800; letter-spacing:.08em; text-transform:uppercase; opacity:.85; }
.compare__photo{ width:100%; height:280px; object-fit:cover; border-radius:var(--radius-md); display:block; box-shadow:0 14px 30px -12px rgba(0,0,0,.4); }
.compare__panel h3{ font-size:20px; font-weight:800; }
.compare__panel p{ font-size:14px; opacity:.85; }

/* ---------- 누수 흔적 6카드 (사진 보완 섹션) ---------- */
.traces-grid{ display:grid; grid-template-columns:repeat(5,1fr); gap:14px; }
.trace-card{
  position:relative;
  border-radius:var(--radius-md);
  overflow:hidden;
  min-height:225px;
  display:flex; align-items:flex-end; justify-content:center;
  padding:18px;
  color:#fff;
}
.trace-card__img{ position:absolute; inset:0; width:100%; height:100%; object-fit:cover; z-index:0; }
.trace-card::after{
  content:""; position:absolute; inset:0; z-index:1;
  background:linear-gradient(to top, rgba(23,22,15,.82) 0%, transparent 65%);
}
.trace-card span{ position:relative; z-index:2; font-size:13px; font-weight:700; }
@media (max-width:900px){ .traces-grid{ grid-template-columns:repeat(3,1fr); } }
@media (max-width:560px){ .traces-grid{ grid-template-columns:repeat(2,1fr); } .trace-card:last-child{ grid-column:span 2; } }

/* ---------- FAQ 카드 (Section 8) ---------- */
.faq-grid{ display:grid; grid-template-columns:repeat(2,1fr); gap:16px; }
.faq-card{
  background:var(--ivory-soft);
  border:1px solid var(--ivory-line);
  border-left:4px solid var(--green);
  border-radius:var(--radius-sm);
  padding:26px 28px;
}
.faq-card h3{ font-size:15.5px; font-weight:800; display:flex; gap:10px; }
.faq-card h3 span{ color:var(--green); }
.faq-card p{ margin-top:10px; font-size:14.5px; color:var(--text-sub); line-height:1.65; }
@media (max-width:760px){ .faq-grid{ grid-template-columns:1fr; } }

/* ---------- CTA (Section 9) ---------- */
.cta{
  background:var(--black);
  color:#fff;
  text-align:center;
  padding:96px 0;
  position:relative;
  overflow:hidden;
}
.cta::before{
  content:""; position:absolute; inset:0;
  background:radial-gradient(circle at 50% 0%, rgba(47,92,67,.4), transparent 60%);
}
.cta__inner{ position:relative; z-index:1; max-width:600px; margin:0 auto; }
.cta h2{ font-size:clamp(26px,4vw,40px); font-weight:800; line-height:1.4; }
.cta p{ margin-top:18px; color:rgba(237,230,214,.7); font-size:15.5px; }
.cta .btn{ margin-top:32px; }

/* ---------- 서브페이지 공통 ---------- */
.page-hero{
  background:var(--black); color:#fff; padding:72px 0 56px;
  position:relative; overflow:hidden;
}
.page-hero::before{
  content:""; position:absolute; width:480px; height:480px; border-radius:50%;
  background:radial-gradient(circle, rgba(47,92,67,.45), transparent 70%);
  top:-220px; right:-160px; filter:blur(40px);
}
.page-hero__inner{ position:relative; z-index:1; max-width:680px; }
.page-hero .eyebrow{ color:var(--green-light); }
.page-hero h1{ font-size:clamp(28px,4.4vw,44px); font-weight:800; line-height:1.35; }
.page-hero p{ margin-top:18px; color:rgba(237,230,214,.75); font-size:16px; }
.breadcrumb{ font-size:13px; color:rgba(237,230,214,.55); margin-bottom:18px; }
.breadcrumb a{ color:rgba(237,230,214,.75); }

.article{ padding:64px 0; }
.article__body{ max-width:760px; margin:0 auto; }
.article__body h2{ font-size:clamp(20px,2.8vw,26px); font-weight:800; margin-top:52px; margin-bottom:16px; letter-spacing:-.01em; }
.article__body h2:first-child{ margin-top:0; }
.article__body h3{ font-size:17px; font-weight:800; margin-top:28px; margin-bottom:10px; }
.article__body p{ font-size:15.5px; color:var(--text-main); margin-bottom:16px; }
.article__body ul{ margin-bottom:16px; }
.article__body ul li{
  position:relative; padding-left:22px; margin-bottom:10px; font-size:15px; color:var(--text-main);
}
.article__body ul li::before{
  content:""; position:absolute; left:0; top:9px; width:8px; height:8px; border-radius:2px; background:var(--green);
}
.callout{
  background:var(--ivory); border-left:4px solid var(--green);
  border-radius:var(--radius-sm); padding:22px 26px; margin:28px 0;
  font-size:15px; color:var(--charcoal);
}
.callout strong{ color:var(--green); }

.info-table{ width:100%; border-collapse:collapse; margin:20px 0 28px; font-size:14.5px; }
.info-table th,.info-table td{ text-align:left; padding:14px 16px; border-bottom:1px solid var(--ivory-line); }
.info-table th{ width:34%; color:var(--text-sub); font-weight:700; background:var(--ivory); }

.article-cta{
  background:var(--green); color:#fff; border-radius:var(--radius-lg);
  padding:44px 40px; text-align:center; margin-top:56px;
}
.article-cta h3{ font-size:22px; font-weight:800; }
.article-cta p{ color:rgba(237,230,214,.8); margin-top:10px; font-size:14.5px; }
.article-cta .btn{ margin-top:22px; background:#fff; color:var(--green); }
.article-cta .btn:hover{ background:var(--ivory); }

.related{ margin-top:56px; }
.related h3{ font-size:16px; font-weight:800; margin-bottom:16px; }
.related-grid{ display:grid; grid-template-columns:repeat(2,1fr); gap:16px; }
.related-grid a{
  display:block; background:var(--ivory-soft); border:1px solid var(--ivory-line);
  border-radius:var(--radius-md); overflow:hidden; font-size:15px; font-weight:700;
  transition:border-color .15s ease;
}
.related-grid a:hover{ border-color:var(--green); color:var(--green); }
.related-grid img{ width:100%; height:200px; object-fit:cover; display:block; }
.related-grid span{ display:block; padding:16px 18px; }
@media (max-width:560px){ .related-grid{ grid-template-columns:1fr; } .related-grid img{ height:180px; } }

/* ---------- 사이트맵 페이지 ---------- */
.sitemap-list{ max-width:640px; margin:0 auto; }
.sitemap-list li{ border-bottom:1px solid var(--ivory-line); }
.sitemap-list a{ display:block; padding:18px 4px; font-weight:700; }
.sitemap-list a:hover{ color:var(--green); }

/* ---------- 푸터 ---------- */
.site-footer{ background:var(--charcoal); color:var(--ivory-soft); padding:56px 0 0; }
.site-footer__inner{
  display:grid; grid-template-columns:1fr 1.4fr 1fr; gap:40px;
  padding-bottom:40px; border-bottom:1px solid rgba(237,230,214,.14);
}
.site-footer__logo{ font-size:18px; font-weight:800; }
.site-footer__desc{ margin-top:10px; font-size:13.5px; line-height:1.7; color:rgba(237,230,214,.6); max-width:260px; word-break:keep-all; }
.site-footer__biz{ font-size:13.5px; }
.site-footer__biz p{ padding:5px 0; color:rgba(237,230,214,.75); word-break:keep-all; }
.site-footer__biz a{ color:rgba(237,230,214,.75); }
.site-footer__links{ display:flex; flex-direction:column; gap:9px; font-size:13.5px; }
.site-footer__links a{ color:rgba(237,230,214,.7); }
.site-footer__links a:hover{ color:#fff; }
.site-footer__copy{ padding:22px 0; font-size:12.5px; color:rgba(237,230,214,.45); }

@media (max-width:900px){
  .site-footer__inner{ grid-template-columns:1fr; gap:28px; }
  .compare{ grid-template-columns:1fr; }
  .faq-grid{ grid-template-columns:1fr; }
}