/* ==========================================================================
   apartnusu.mjnusu.com — 아파트누수탐지
   Design system: Slate(쿨그레이) + Copper(테라코타), no-radius architectural
   레퍼런스(bbc.veteranfix.com)는 구조/컴포넌트 문법만 참고 — 색상은 의도적으로 다르게 베리에이션.
   가짜 리뷰/평점 스키마·시공건수 카운터는 프로젝트 규칙상 이식하지 않음.
   ========================================================================== */

@font-face {
  font-family: 'Pretendard';
  src: url('/assets/fonts/Pretendard-Variable.woff2') format('woff2-variations'),
       url('/assets/fonts/Pretendard-Variable.woff2') format('woff2');
  font-weight: 45 920;
  font-style: normal;
  font-display: swap;
}

:root{
  --color-primary:      #DCE2E6;  /* 쿨 슬레이트그레이 — 헤더/푸터/블루프린트 강조 */
  --color-accent:       #B5530E;  /* 테라코타/커퍼 — 단일 액센트 (레퍼런스의 퍼플과 다른 계열로 베리에이션) */
  --color-accent-hover: #953F08;
  --color-accent-rgb:   181, 83, 14;
  --color-text:         #16181c;
  --color-text-muted:   #565c62;
  --color-bg:           #fff;
  --color-bg-alt:       #f5f4f1;
  --color-border:       #dcdcd6;

  --container-max: 1240px;
  --container-narrow: 960px;
  --gutter: 24px;
  --nav-h: 62px;
  --font: 'Pretendard', -apple-system, BlinkMacSystemFont, 'Malgun Gothic', sans-serif;
}

*, *::before, *::after{ box-sizing: border-box; }
html{ -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce){ html{ scroll-behavior: auto; } }

body{
  margin:0;
  font-family: var(--font);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 1.0625rem;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
@media (max-width:768px){ body{ padding-bottom: 64px; } } /* 모바일 하단 고정바 여유 */

img{ max-width:100%; display:block; height:auto; }
a{ color: inherit; text-decoration:none; }
button{ font: inherit; }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4{ margin:0 0 .6em; font-weight:800; letter-spacing:-0.01em; line-height:1.28; }
p{ margin:0; color: var(--color-text-muted); font-size:.96rem; line-height:1.85; }

.container{ width:100%; max-width: var(--container-max); margin-inline:auto; padding-inline: var(--gutter); }
.container-narrow{ width:100%; max-width: var(--container-narrow); margin-inline:auto; padding-inline: var(--gutter); }
.section{ padding: clamp(56px, 8vw, 96px) var(--gutter); }
.section-alt{ background: var(--color-bg-alt); }
.section-primary{ background: var(--color-primary); }

.sec-title{ font-size: clamp(1.7rem, 3vw, 2.3rem); font-weight:800; letter-spacing:-0.4px; text-align:center; }
.sec-sub{ text-align:center; color: var(--color-text-muted); font-size:.97rem; max-width:640px; margin:0 auto 44px; line-height:1.75; }
.ta-center{ text-align:center; }
.jc-center{ justify-content:center; }
.mt-24{ margin-top:24px; }

/* ---------- buttons (무각) ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:.5em;
  padding: .95rem 1.9rem; border-radius:0; font-weight:700; font-size:.98rem;
  border: none; white-space:nowrap; cursor:pointer;
  transition: background-color .18s ease, border-color .18s ease, color .18s ease, transform .15s ease;
}
.btn:active{ transform: translateY(1px); }
.btn-primary{ background: var(--color-accent); color:#fff; }
.btn-primary:hover{ background: var(--color-accent-hover); }
.btn-outline{ background:transparent; color: var(--color-text); border:1px solid rgba(13,13,26,.28); padding: .89rem 1.85rem; }
.btn-outline:hover{ border-color: var(--color-accent); color: var(--color-accent); }
.btn-outline.on-dark{ color:#fff; border-color: rgba(255,255,255,.45); }
.btn-outline.on-dark:hover{ border-color:#fff; color:#fff; }
.btn-block{ width:100%; }

/* ---------- header ---------- */
.site-header{
  position: sticky; top:0; z-index:100; height: var(--nav-h);
  display:flex; align-items:center; background: var(--color-primary);
  border-bottom: 1px solid rgba(var(--color-accent-rgb), .3);
}
.hdr-inner{ display:flex; align-items:center; justify-content:space-between; gap: clamp(12px,3vw,28px); }
.hdr-logo{ display:flex; align-items:center; gap:.6rem; }
.hdr-logo-mark{ width:26px; height:26px; flex:none; color: var(--color-accent); }
.hdr-logo-text{ display:flex; flex-direction:column; line-height:1.15; }
.hdr-biz{ font-weight:800; font-size:1rem; color: var(--color-accent); letter-spacing:-.2px; }
.hdr-tagline{ font-size:.68rem; font-weight:700; letter-spacing:.14em; text-transform:uppercase; color: var(--color-text-muted); }
.hdr-inner .btn{ padding:.68rem 1.35rem; font-size:.9rem; }

/* ---------- mobile sticky bar ---------- */
#mob-bar{ display:none; }
@media(max-width:768px){
  #mob-bar{
    display:flex; position:fixed; bottom:0; left:0; right:0; z-index:200;
    background: var(--color-primary); border-top:1px solid rgba(var(--color-accent-rgb),.3);
  }
  #mob-bar a{ flex:1; text-align:center; padding:16px 0; font-weight:700; font-size:.88rem; }
  #mob-bar a.mob-call{ background: var(--color-accent); color:#fff; }
  #mob-bar a.mob-consult{ color: var(--color-text); }
}

/* ---------- hero 공통 타이포그래피 (배리언트 간 재사용) ---------- */
.hero-badge{ display:inline-block; font-size:.72rem; font-weight:700; letter-spacing:.16em; text-transform:uppercase; color: var(--color-accent); border:1px solid rgba(var(--color-accent-rgb),.4); padding:6px 14px; margin-bottom:18px; }
.hero-h1{ font-size: clamp(2.1rem, 4.2vw, 3.1rem); font-weight:800; line-height:1.15; letter-spacing:-0.6px; margin:0 0 .4em; }
.hero-sub{ color: var(--color-text-muted); margin-bottom:26px; font-size:1rem; line-height:1.75; }
.hero-ctas{ display:flex; gap:14px; flex-wrap:wrap; }
.hero-reassure{ font-size:.8rem; color: var(--color-text-muted); margin:14px 0 0; }

/* ---------- 홈 히어로 — 좌우 분할(텍스트 패널 / 사진), 겹침 없음 (세부페이지 배리언트와 확실히 구분) ---------- */
.hero-split{ display:grid; grid-template-columns: 1fr 1.15fr; min-height: min(84vh, 720px); border-bottom:3px solid var(--color-accent); }
.hero-split__panel{ background: var(--color-primary); display:flex; flex-direction:column; justify-content:center; padding: clamp(40px,6vw,84px); }
.hero-split__panel .hero-badge{ align-self:flex-start; }
.hero-split__media{ position:relative; overflow:hidden; background: var(--color-text); }
.hero-split__media img{ position:absolute; inset:0; width:100%; height:100%; object-fit:cover; opacity:0; transform:scale(1.045); transition: opacity .7s cubic-bezier(.4,0,.2,1), transform 2.9s cubic-bezier(.4,0,.2,1); }
.hero-split__media img.is-active{ opacity:1; transform:scale(1); }
@media(max-width:860px){
  .hero-split{ grid-template-columns:1fr; }
  .hero-split__media{ order:-1; min-height:42vh; }
  .hero-split__panel{ padding: 32px 22px 40px; }
}

/* ---------- 세부/상담 페이지용 히어로 배리언트 — 사진 위 하단 앵커 + 그라데이션 (홈과 다른 배치로 구분) ---------- */
.hero{ position:relative; min-height: min(88vh, 760px); display:flex; align-items:center; overflow:hidden; border-bottom:3px solid var(--color-accent); background: var(--color-primary); }
.hero-bg{ position:absolute; inset:0; }
.hero-bg img{ width:100%; height:100%; object-fit:cover; position:absolute; inset:0; opacity:0; transition: opacity 1.4s ease; }
.hero-bg img.is-active{ opacity:1; }
.hero-textbox{ position:relative; z-index:2; max-width:640px; margin:0 24px; }
.hero--bottom{ align-items:flex-end; min-height:56vh; }
.hero--bottom::after{ content:''; position:absolute; left:0; right:0; bottom:0; height:62%; background: linear-gradient(to top, rgba(13,13,26,.86), transparent); z-index:1; pointer-events:none; }
.hero--bottom .hero-textbox{ margin:0 24px 44px; max-width:720px; }
.hero--bottom .hero-badge{ color:#fff; border-color: rgba(255,255,255,.5); }
.hero--bottom .hero-h1{ color:#fff; }
.hero--bottom .hero-sub{ color: rgba(255,255,255,.85); }
.hero--bottom .hero-reassure{ color: rgba(255,255,255,.7); }

/* ---------- grid utilities ---------- */
.dp-g2{ display:grid; grid-template-columns:1fr 1fr; gap:24px; }
.dp-g3{ display:grid; grid-template-columns:repeat(3,1fr); gap:20px; }
@media(max-width:768px){ .dp-g2,.dp-g3{ grid-template-columns:1fr; } }

/* ---------- link-card (코너브래킷 갤러리 카드) ---------- */
.link-card{ position:relative; display:block; background: var(--color-bg); border:1px solid var(--color-border); overflow:hidden; }
.link-card::before,.link-card::after{ content:''; position:absolute; width:16px; height:16px; z-index:2; pointer-events:none; }
.link-card::before{ top:0; left:0; border-top:2px solid var(--color-accent); border-left:2px solid var(--color-accent); }
.link-card::after{ bottom:0; right:0; border-bottom:2px solid var(--color-accent); border-right:2px solid var(--color-accent); }
.link-card img{ aspect-ratio:4/3; object-fit:cover; margin:0; width:100%; }
.link-card-body{ padding:16px 18px 18px; }
.link-card-body h3{ margin-bottom:6px; font-size:1rem; }
.link-card-body p{ font-size:.86rem; margin:0; }
.link-card-cap{ font-size:.8rem; color: var(--color-accent); font-weight:700; display:inline-block; margin-top:8px; }

/* "더 알아보기/상담하기" 유도용 이미지 없는 카드 (link-card와 짝) */
.link-card-more{ display:flex; align-items:center; justify-content:center; background: var(--color-bg-alt); border:1px dashed rgba(var(--color-accent-rgb),.4); min-height:100%; }
.link-card-more-inner{ text-align:center; padding:32px 20px; }
.link-card-more-arrow{ display:block; font-size:1.6rem; color: var(--color-accent); margin-bottom:10px; }
.link-card-more-inner h3{ margin-bottom:6px; }
.link-card-more-inner span{ font-size:.8rem; color: var(--color-text-muted); }
@media (hover:hover) and (pointer:fine){ .link-card:hover img{ opacity:.92; } }

/* ---------- blueprint section (다루는 방식) ---------- */
.section-blueprint{
  position:relative;
  background-image:
    linear-gradient(rgba(var(--color-accent-rgb), .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(var(--color-accent-rgb), .07) 1px, transparent 1px);
  background-size:34px 34px; background-position:center top;
}
/* 코너브래킷 대신 좌측 굵은 accent 바 — 갤러리/히어로와 다른 모티프로 베리에이션 */
/* 큰 넘버+태그 언더라인이 시그니처라 카드 자체는 plain border로 — 코너브래킷(갤러리)·좌측바(증상카드)와 다른 모티프 */
.why-card{ position:relative; background: var(--color-bg); border:1px solid var(--color-border); padding:30px 26px 34px; overflow:hidden; }
.why-num{ display:block; font-size:3.2rem; font-weight:800; line-height:1; color: rgba(var(--color-accent-rgb), .16); margin-bottom:-6px; letter-spacing:-1px; }
.why-card h3{ position:relative; font-size:1.08rem; margin-top:6px; }
.why-card p{ margin-bottom:6px; }
.why-tag{ display:inline-block; font-size:.68rem; font-weight:800; letter-spacing:2px; color: var(--color-accent); border-top:1px solid rgba(var(--color-accent-rgb), .3); padding-top:10px; margin-top:8px; width:100%; }
.mid-cta{ text-align:center; margin:36px 0 0; font-size:.94rem; color: var(--color-text-muted); }
.mid-cta a{ color: var(--color-accent); font-weight:700; }

/* ---------- capability row (대표 서비스, 코너브래킷) ---------- */
.capability-row{ position:relative; display:grid; grid-template-columns:1fr 1fr; gap:0; background: var(--color-bg); border:1px solid var(--color-border); overflow:hidden; }
.capability-row::before,.capability-row::after{ content:''; position:absolute; width:20px; height:20px; z-index:2; pointer-events:none; }
.capability-row::before{ top:-1px; left:-1px; border-top:2px solid var(--color-accent); border-left:2px solid var(--color-accent); }
.capability-row::after{ bottom:-1px; right:-1px; border-bottom:2px solid var(--color-accent); border-right:2px solid var(--color-accent); }
.capability-row__media img{ width:100%; height:100%; object-fit:cover; display:block; aspect-ratio:4/3; }
.capability-row__body{ padding: clamp(28px,4vw,48px); display:flex; flex-direction:column; justify-content:center; }
.capability-row.reverse .capability-row__media{ order:2; }
@media(max-width:768px){ .capability-row, .capability-row.reverse{ grid-template-columns:1fr; } .capability-row.reverse .capability-row__media{ order:0; } }

/* 증상 체크리스트 카드 (블루프린트/코너브래킷과 다른 심플한 좌측 accent 도트 모티프) */
.symptom-card{ position:relative; background: var(--color-bg); border:1px solid var(--color-border); padding: 22px 22px 22px 26px; }
.symptom-card::before{ content:''; position:absolute; top:24px; left:0; width:4px; height:22px; background: var(--color-accent); }
.symptom-card h3{ font-size:1rem; margin-bottom:6px; }
.symptom-card p{ font-size:.88rem; margin:0; }

/* 원칙 리스트 (about band 안) */
.principle-list{ display:flex; flex-direction:column; gap:14px; margin-top:1.4rem; }
.principle-list li{ display:flex; gap:.7rem; align-items:flex-start; font-size:.94rem; color: var(--color-text); }
.principle-list li::before{ content:''; flex:none; width:8px; height:8px; margin-top:.5em; background: var(--color-accent); }

/* ---------- before/after 정적 배치 ---------- */
.ba-wrap{ display:grid; grid-template-columns:1fr 1fr; gap:4px; }
.ba-item{ position:relative; }
.ba-item img{ aspect-ratio:4/3; object-fit:cover; margin:0; width:100%; }
.ba-item span{ position:absolute; top:10px; left:10px; background: var(--color-primary); color: var(--color-text); font-size:.72rem; font-weight:700; padding:4px 12px; letter-spacing:1px; text-transform:uppercase; }
.ba-cap{ margin-top:.7rem; font-size:.88rem; }
@media(max-width:600px){ .ba-wrap{ grid-template-columns:1fr; } }

/* ---------- process (연결선 타임라인) ---------- */
.proc-list{ display:flex; list-style:none; margin:0; padding:0; }
.proc-step{ flex:1; position:relative; padding:0 12px; text-align:center; }
.proc-step:not(:last-child)::after{ content:''; position:absolute; top:24px; left:50%; width:100%; height:2px; background: var(--color-border); z-index:0; }
.proc-num{ position:relative; z-index:1; margin:0 auto 12px; width:48px; height:48px; background: var(--color-accent); color:#fff; font-weight:800; display:flex; align-items:center; justify-content:center; }
.proc-step h3{ font-size:.92rem; font-weight:700; color: var(--color-text); margin:0; }
.proc-desc{ font-size:.8rem; font-weight:400; margin-top:6px; color: var(--color-text-muted); }
@media(max-width:768px){
  .proc-list{ display:grid; grid-template-columns:1fr 1fr; gap:16px 14px; }
  .proc-step{ padding:16px; text-align:left; background: var(--color-bg); border:1px solid var(--color-border); border-top:3px solid var(--color-accent); }
  .proc-step::after{ display:none; }
  .proc-num{ margin:0 0 10px; width:34px; height:34px; font-size:.85rem; }
}
@media(max-width:420px){ .proc-list{ grid-template-columns:1fr; } }

/* ---------- FAQ (native details, 레퍼런스 시각언어로 재스타일) ---------- */
.faq-list{ margin-top:8px; }
.faq-item{ border-bottom:1px solid var(--color-border); }
.faq-item summary{ cursor:pointer; list-style:none; display:flex; justify-content:space-between; align-items:center; gap:1rem; padding:20px 0; font-weight:700; font-size:.96rem; color: var(--color-text); }
.faq-item summary::-webkit-details-marker{ display:none; }
.faq-item summary::after{ content:'+'; flex:none; font-size:1.3rem; font-weight:400; color: var(--color-accent); transition: transform .25s ease; line-height:1; }
.faq-item[open] summary::after{ transform: rotate(45deg); }
.faq-item p{ padding:0 0 20px; max-width:68ch; }

/* ---------- video frame ---------- */
.video-frame{ position:relative; border:1px solid var(--color-border); overflow:hidden; aspect-ratio:16/9; background:#000; }
.video-frame iframe{ position:absolute; inset:0; width:100%; height:100%; border:0; }

/* ---------- contact card ---------- */
.contact-card{ display:flex; flex-direction:column; align-items:center; text-align:center; background: var(--color-bg); border:1px solid var(--color-border); border-top:4px solid var(--color-accent); padding: clamp(32px,5vw,48px) 32px; gap:6px; }
.contact-badge{ display:inline-block; font-size:.74rem; font-weight:800; letter-spacing:2px; color: var(--color-accent); background: rgba(var(--color-accent-rgb), .08); border:1px solid rgba(var(--color-accent-rgb), .3); padding:5px 14px; margin-bottom:10px; }
.phone-display{ font-size: clamp(1.9rem, 4.4vw, 2.6rem); font-weight:800; color: var(--color-text); margin:4px 0 0; letter-spacing:-.5px; }
.phone-display a{ color: var(--color-accent); }
.contact-desc{ font-size:.9rem; margin:0 0 8px; }
@media(max-width:600px){ .contact-card{ padding:36px 24px; } }

/* ---------- footer ---------- */
.site-footer{ background: var(--color-primary); border-top:3px solid var(--color-accent); padding: 56px 24px 80px; color: var(--color-text); }
.footer-grid{ display:grid; grid-template-columns: 1.4fr 1fr 1fr; gap:40px; max-width: var(--container-max); margin:0 auto; }
.footer-grid h4{ color: var(--color-accent); margin-bottom:16px; font-size:.85rem; letter-spacing:.05em; }
.footer-grid p, .footer-grid li{ font-size:.85rem; color: var(--color-text-muted); line-height:1.9; }
.footer-grid a:hover{ color: var(--color-accent); }
.footer-bottom{ max-width: var(--container-max); margin:36px auto 0; padding-top:22px; border-top:1px solid rgba(var(--color-accent-rgb),.2); font-size:.78rem; color: var(--color-text-muted); display:flex; justify-content:space-between; flex-wrap:wrap; gap:.5rem; }
@media(max-width:768px){ .footer-grid{ grid-template-columns:1fr; gap:32px; } .site-footer{ padding-bottom: 88px; } }

/* ---------- cards (2개뿐일 때 3열 빈칸 방지용 2분할) ---------- */
.grid-2up{ display:grid; grid-template-columns: 7fr 5fr; gap: clamp(16px,2.2vw,28px); }
@media (max-width: 600px){ .grid-2up{ grid-template-columns: 1fr; } }

/* ---------- reveal / motion (progressive enhancement, 컴포넌트별 베리에이션) ----------
   기본값은 항상 보임 — JS 없이도 본문이 숨지 않는다.
   JS가 실행되면 현재 뷰포트 밖 요소에만 .pending을 붙여 스크롤 진입 시 트랜지션으로 나타난다.
   컴포넌트 성격에 맞춰 fade-up / scale-in / slide-left / slide-right로 구분한다.
   주의: 관찰 대상 요소 자체를 clip-path 등으로 0 크기로 만드는 효과는 절대 쓰지 않는다 —
   IntersectionObserver가 "화면에 없음(ratio 0)"으로 판정해 영원히 등장하지 않는 자기모순이 생긴다. */
.reveal, .reveal-scale, .reveal-left, .reveal-right{
  opacity:1; transform:none; transition: opacity .7s cubic-bezier(.16,1,.3,1), transform .7s cubic-bezier(.16,1,.3,1);
}
.reveal.pending{ opacity:0; transform: translateY(24px); }
.reveal-scale.pending{ opacity:0; transform: scale(.94); }
.reveal-left.pending{ opacity:0; transform: translateX(-30px); }
.reveal-right.pending{ opacity:0; transform: translateX(30px); }

/* 프로세스/갤러리처럼 순서가 있는 묶음 — 항목별 지연시간(순차 등장) */
.stagger > *{ transition-delay: calc(var(--i, 0) * 90ms); }

@media (prefers-reduced-motion: reduce){
  .reveal, .reveal-scale, .reveal-left, .reveal-right{ opacity:1 !important; transform:none !important; transition:none !important; }
  .hero-bg img, .hero-split__media img{ transition:none !important; transform:none !important; }
}

.hairline{ border-top:1px solid var(--color-border); }
.stack{ display:flex; flex-direction:column; gap:1rem; }