/* ===== 기본 설정 ===== */
:root{
  --c-bg:#ffffff;
  --c-bg-soft:#f5f7f8;
  --c-ink:#182029;
  --c-ink-soft:#5b6672;
  --c-line:#e5e9ec;
  --c-brand:#0f7a6c;
  --c-brand-dark:#0b5c52;
  --c-brand-soft:#e6f3f1;
  --c-dark:#0b2b27;
  --c-accent:#1a8ff5;
  --max-w:1160px;
  --radius:18px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:'Pretendard', -apple-system, BlinkMacSystemFont, 'Malgun Gothic', sans-serif;
  color:var(--c-ink);
  background:var(--c-bg);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
ul,ol{padding-left:1.2em}
.wrap{max-width:var(--max-w);margin:0 auto;padding:0 24px}

/* ===== 헤더 / GNB (양끝 flush) ===== */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--c-line);
}
.gnb{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:16px 40px;
}
.brand{font-size:20px;font-weight:800;color:var(--c-brand-dark);letter-spacing:-.02em}
.gnb-menu{display:flex;align-items:center;gap:28px;font-size:15px;font-weight:600;color:var(--c-ink-soft)}
.gnb-menu a:hover{color:var(--c-brand)}
.gnb-menu .nav-cta{
  background:var(--c-brand);color:#fff;padding:10px 20px;border-radius:999px;
  font-weight:700;
}
.gnb-menu .nav-cta:hover{background:var(--c-brand-dark)}
.menu-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:40px;height:40px;background:none;border:0;cursor:pointer}
.menu-toggle span{display:block;width:22px;height:2px;background:var(--c-ink);margin:0 auto}

/* ===== 히어로 (2단 레이아웃: 텍스트 + 실제 시공사진) ===== */
.hero-band{background:linear-gradient(160deg,var(--c-brand-soft) 0%,#fff 65%);padding:56px 0}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.hero h1{
  font-size:clamp(30px,4.2vw,44px);
  font-weight:800;
  letter-spacing:-.02em;
  margin:0 0 18px;
}
.hero .lead-answer{
  font-size:17.5px;
  color:var(--c-ink);
  background:#fff;
  border:1px solid var(--c-line);
  border-left:4px solid var(--c-brand);
  border-radius:12px;
  padding:18px 22px;
  margin:0 0 28px;
}
.hero-cta-row{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:8px}
.hero-media img{width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:22px;box-shadow:0 24px 48px rgba(11,43,39,.16)}
.btn{
  display:inline-block;padding:14px 26px;border-radius:999px;font-weight:700;font-size:16px;
}
.btn-primary{background:var(--c-brand);color:#fff}
.btn-primary:hover{background:var(--c-brand-dark)}
.btn-outline{border:1px solid var(--c-line);color:var(--c-ink)}
.btn-outline:hover{border-color:var(--c-brand);color:var(--c-brand)}

/* ===== 컬러 밴드 (레퍼런스: 섹션마다 배경색 전환, 엣지투엣지) ===== */
.band{width:100%;padding:60px 0}
.band-white{background:#fff}
.band-alt{background:var(--c-bg-soft)}
.band-tint{background:var(--c-brand-soft)}
.band-dark{background:var(--c-dark);color:#fff}
.band-dark h2{color:#fff}
.band-dark p{color:#cfe9e4}
.band h2{font-size:27px;font-weight:800;margin:0 0 20px;letter-spacing:-.01em}
.band h3{font-size:18px;font-weight:700;margin:20px 0 8px}
.section-badge{
  display:inline-block;background:#fff;color:var(--c-brand-dark);
  font-size:13px;font-weight:700;padding:4px 12px;border-radius:999px;margin-bottom:10px;
  border:1px solid var(--c-line);
}
.band-tint .section-badge,.band-alt .section-badge{background:#fff}

/* ===== 2단 콘텐츠 블록 (이미지 + 텍스트, 레퍼런스의 feature 섹션 패턴) ===== */
.feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.feature-grid.reverse .feature-media{order:2}
.feature-grid.reverse .feature-text{order:1}
.feature-media img{width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:var(--radius)}
.feature-media figcaption{font-size:13px;color:var(--c-ink-soft);margin-top:10px}
.feature-text p{margin:0 0 14px}

/* ===== 절차 리스트 ===== */
.process-list{counter-reset:step;list-style:none;padding:0;display:grid;gap:14px;margin:0}
.process-list li{
  counter-increment:step;position:relative;padding:18px 20px 18px 58px;
  background:#fff;border-radius:var(--radius);border:1px solid var(--c-line);
}
.band-alt .process-list li,.band-tint .process-list li{background:#fff}
.process-list li::before{
  content:counter(step);position:absolute;left:18px;top:50%;transform:translateY(-50%);
  width:28px;height:28px;background:var(--c-brand);color:#fff;border-radius:50%;
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:14px;
}

/* ===== 표 ===== */
table{width:100%;border-collapse:collapse;margin:10px 0 4px;font-size:15px;background:#fff}
table caption{text-align:left;font-size:14px;color:var(--c-ink-soft);margin-bottom:8px}
th,td{border:1px solid var(--c-line);padding:12px 14px;text-align:left}
th{background:var(--c-bg-soft);font-weight:700}
.table-note{font-size:13px;color:var(--c-ink-soft);margin-top:8px}

/* ===== FAQ 아코디언 (details/summary — JS 없이 접기/펼치기, 스크린리더·크롤러 모두 텍스트 인식) ===== */
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 4px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary h3{margin:0;font-size:17px;font-weight:700}
.faq-item summary::after{
  content:"";flex:none;width:10px;height:10px;
  border-right:2px solid var(--c-brand);border-bottom:2px solid var(--c-brand);
  transform:rotate(45deg);transition:transform .2s ease;
}
.faq-item[open] summary::after{transform:rotate(-135deg)}
.faq-item p{margin:0 4px 20px;color:var(--c-ink-soft)}
.faq-item[open] summary{padding-bottom:12px}

/* ===== CTA 밴드 (엣지투엣지 다크, 레퍼런스의 하단 CTA 패턴) ===== */
.cta-band{text-align:center}
.cta-band h2{color:#fff}
.cta-band p{color:#cfe9e4;margin:0 0 24px}
.cta-band .btn{background:#fff;color:var(--c-brand-dark)}
.cta-band .btn:hover{background:var(--c-brand-soft)}

.last-modified{font-size:13px;color:var(--c-ink-soft);text-align:center;margin:0}

/* ===== 관련 서비스 카드 ===== */
.related-services h2{font-size:24px;text-align:center;margin-bottom:32px}
.related-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:18px}
.related-card{
  border:1px solid var(--c-line);border-radius:var(--radius);overflow:hidden;background:#fff;
  transition:box-shadow .2s,transform .2s;
}
.related-card:hover{box-shadow:0 12px 24px rgba(15,122,108,.12);transform:translateY(-2px)}
.related-card img{width:100%;height:150px;object-fit:cover}
.related-card-body{padding:14px 16px}
.related-card-body h3{margin:0 0 6px;font-size:16px}
.related-card-body p{margin:0;font-size:13px;color:var(--c-ink-soft)}

/* ===== 푸터 (다크, 레퍼런스 톤 — 링크 목록 없이 사업자 정보만) ===== */
.site-footer{background:var(--c-dark);padding:36px 0}
.footer-inner{max-width:var(--max-w);margin:0 auto;padding:0 24px;color:#a9c9c4;font-size:14px}
.footer-inner p{margin:4px 0}
.footer-inner .footer-company{color:#fff;font-weight:600}

/* ===== 모바일 하단 고정 CTA ===== */
.mobile-cta-bar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:60;
  grid-template-columns:1fr 1fr;
}
.mobile-cta-bar a{
  text-align:center;padding:16px 0;font-weight:700;font-size:16px;color:#fff;
}
.mobile-cta-bar .mcta-call{background:var(--c-brand)}
.mobile-cta-bar .mcta-sms{background:var(--c-brand-dark)}

/* ===== 플로팅 메인 배너 ===== */
.floating-home{
  position:fixed;left:16px;bottom:86px;z-index:55;
  background:#fff;border:1px solid var(--c-line);box-shadow:0 8px 20px rgba(0,0,0,.12);
  border-radius:999px;padding:10px 18px;font-size:13px;font-weight:700;color:var(--c-brand-dark);
}

/* ===== 반응형 ===== */
@media (max-width:768px){
  .gnb-menu{
    position:fixed;top:64px;left:0;right:0;bottom:0;background:#fff;
    flex-direction:column;align-items:flex-start;padding:24px;gap:0;
    transform:translateX(100%);transition:transform .25s ease;overflow-y:auto;
  }
  .gnb-menu.open{transform:translateX(0)}
  .gnb-menu a{width:100%;padding:16px 4px;border-bottom:1px solid var(--c-line)}
  .gnb-menu .nav-cta{text-align:center;margin-top:16px;border-bottom:0}
  .menu-toggle{display:flex}
  .gnb{padding:14px 16px}

  .wrap{padding:0 16px}
  .hero-band{padding:32px 0}
  .hero-grid{grid-template-columns:1fr;gap:24px}
  .hero-media{order:-1}
  .hero-media img{width:100%;height:220px;aspect-ratio:auto;object-fit:cover}
  .hero h1{font-size:26px}
  .hero .lead-answer{font-size:15.5px;padding:14px 16px}
  .feature-grid{grid-template-columns:1fr;gap:20px}
  .feature-grid.reverse .feature-media{order:1}
  .feature-grid.reverse .feature-text{order:2}
  .feature-media img{width:100%;height:240px;aspect-ratio:auto;object-fit:cover}
  .band{padding:36px 0}
  .band h2{font-size:21px}
  table{font-size:13.5px}
  th,td{padding:9px 10px}
  .mobile-cta-bar{display:grid}
  body{padding-bottom:0}
  main{padding-bottom:64px}
  .floating-home{bottom:78px;padding:8px 14px;font-size:12px}
}