/* ===== Tokens ===== */
:root{
  --charcoal:#2b2b28;
  --ink:#26261f;
  --ink-soft:#54503f;
  --warm-50:#faf8f4;
  --warm-100:#f2ede4;
  --warm-200:#e7ddcd;
  --warm-300:#d5c7b0;
  --sage:#7c8a6e;
  --sage-dark:#5f6d53;
  --bronze:#b5703f;
  --bronze-dark:#8a5530;
  --white:#ffffff;
  --line:#e2d9c9;
  --shadow:0 6px 24px rgba(43,43,40,.08);
  --radius:16px;
  --radius-sm:10px;
  --maxw:1180px;
  --font:-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Pretendard","Malgun Gothic","Noto Sans KR",sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  color:var(--ink);
  background:var(--warm-50);
  line-height:1.7;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul,ol{padding-left:1.2em}
table{border-collapse:collapse;width:100%}
h1,h2,h3,h4{line-height:1.32;font-weight:800;letter-spacing:-.01em;color:var(--charcoal)}
h1{font-size:clamp(28px,5vw,44px)}
h2{font-size:clamp(22px,3.6vw,32px);margin:0 0 .6em}
h3{font-size:clamp(17px,2.6vw,20px);margin:0 0 .4em}
p{margin:0 0 1em}
.container{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.section{padding:56px 0}
.section-tight{padding:32px 0}
.bg-warm{background:var(--warm-100)}
.bg-charcoal{background:var(--charcoal);color:var(--warm-100)}
.bg-charcoal h2,.bg-charcoal h3{color:var(--white)}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--bronze-dark);text-transform:uppercase;margin-bottom:10px;
}
.lead{font-size:clamp(16px,2.2vw,18px);color:var(--ink-soft)}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:absolute;left:-999px;top:0;background:var(--charcoal);color:#fff;padding:10px 16px;z-index:200;border-radius:0 0 8px 0}
.skip-link:focus{left:0}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(250,248,244,.92);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.site-header .container{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}
.site-logo{font-weight:800;font-size:19px;color:var(--charcoal);white-space:nowrap}
.site-logo span{color:var(--bronze)}
.site-nav{display:flex;align-items:center;gap:22px;flex-wrap:wrap}
.site-nav a{font-size:14.5px;font-weight:600;color:var(--ink-soft)}
.site-nav a:hover,.site-nav a:focus-visible{color:var(--bronze-dark)}
.nav-cta{
  background:var(--charcoal);color:#fff !important;padding:9px 18px;border-radius:999px;
  font-weight:700 !important;
}
.nav-cta:hover{background:var(--bronze-dark)}
.nav-cta-mobile{display:none;padding:8px 16px;font-size:14px}
@media (max-width:680px){
  .site-nav{display:none}
  .nav-cta-mobile{display:inline-block}
}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:999px;font-weight:700;font-size:15.5px;
  border:2px solid transparent;cursor:pointer;min-height:48px;
}
.btn-primary{background:var(--bronze);color:#fff}
.btn-primary:hover,.btn-primary:focus-visible{background:var(--bronze-dark)}
.btn-dark{background:var(--charcoal);color:#fff}
.btn-dark:hover,.btn-dark:focus-visible{background:#1c1c19}
.btn-outline{background:transparent;border-color:var(--charcoal);color:var(--charcoal)}
.btn-outline:hover{background:var(--charcoal);color:#fff}
.btn-block{width:100%}
.btn-lg{padding:17px 30px;font-size:17px}

/* ===== Hero (사진 좌측 / 콘텐츠 우측 분할형) ===== */
.hero{display:flex;flex-wrap:wrap;min-height:480px;background:var(--charcoal)}
.hero-media{position:relative;overflow:hidden;flex:1 1 50%;min-height:320px;background:var(--charcoal)}
.hero-media img{width:100%;height:100%;object-fit:cover;object-position:center 35%;display:block}
.hero-copy{flex:1 1 50%;display:flex;align-items:center;padding:48px 5vw;color:#fff}
.hero-copy-inner{max-width:560px}
.hero-copy h1{color:#fff;margin:0 0 14px}
.hero-copy p{color:#eee7d9;margin:0 0 18px;font-size:clamp(14px,1.6vw,17px)}
.hero-badges{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:20px}
.hero-badge{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.3);color:#fff;font-size:12.5px;font-weight:700;padding:6px 12px;border-radius:999px}
@media (max-width:860px){
  .hero{flex-direction:column;min-height:0}
  .hero-media{flex:none;height:280px;min-height:0}
  .hero-copy{flex:none;padding:32px 24px}
}
.hero-noimg{background:linear-gradient(135deg,var(--charcoal),#3a372c);color:#fff;padding:52px 0 40px}
.hero-noimg h1{color:#fff}
.hero-noimg p{color:#e7ddcd}

/* ===== Breadcrumb ===== */
.breadcrumb{font-size:13px;color:var(--ink-soft);padding:14px 0}
.breadcrumb a{color:var(--ink-soft);text-decoration:underline}
.breadcrumb .sep{margin:0 6px;opacity:.5}

/* ===== Before/After ===== */
.ba-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media (max-width:900px){.ba-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.ba-grid{grid-template-columns:1fr}}
.ba-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line)}
.ba-imgs{display:grid;grid-template-columns:1fr 1fr;gap:2px;background:var(--line)}
.ba-fig{position:relative;aspect-ratio:3/4;overflow:hidden;background:#ddd}
.ba-fig img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.ba-card:hover .ba-fig img{transform:scale(1.05)}
.ba-tag{
  position:absolute;top:8px;left:8px;font-size:11px;font-weight:800;letter-spacing:.04em;
  padding:4px 9px;border-radius:6px;color:#fff;text-transform:uppercase;
}
.ba-tag.before{background:rgba(84,80,63,.85)}
.ba-tag.after{background:var(--bronze)}
.ba-cap{padding:14px 16px}
.ba-cap p{margin:0;font-size:14px;font-weight:700;color:var(--charcoal)}
.ba-pair-2{display:grid;grid-template-columns:1fr 1fr;gap:18px}
@media (max-width:640px){.ba-pair-2{grid-template-columns:1fr}}

/* ===== Cards (keyword/service/area 1:1) ===== */
.card-grid-6{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card-grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
@media (max-width:900px){.card-grid-6{grid-template-columns:repeat(2,1fr)} .card-grid-4{grid-template-columns:repeat(2,1fr)}}
@media (max-width:480px){.card-grid-6{grid-template-columns:1fr} .card-grid-4{grid-template-columns:1fr}}

.sq-card{
  position:relative;display:block;border-radius:var(--radius);overflow:hidden;
  aspect-ratio:1/1;background:var(--charcoal);box-shadow:var(--shadow);
}
.sq-card img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.sq-card:hover img,.sq-card:focus-visible img{transform:scale(1.06)}
.sq-card::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(20,19,15,.82) 0%,rgba(20,19,15,.15) 55%,transparent 80%)}
.sq-card-body{position:absolute;left:0;right:0;bottom:0;padding:16px;z-index:2;color:#fff}
.sq-card-body h3{color:#fff;margin:0 0 4px;font-size:17px}
.sq-card-body p{color:#e7ddcd;margin:0;font-size:13px}
.sq-card:focus-visible{outline:3px solid var(--bronze);outline-offset:2px}

.more-row{text-align:center;margin-top:26px}

/* ===== Table ===== */
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;border-radius:var(--radius-sm);border:1px solid var(--line)}
.tbl{background:#fff;font-size:14.5px}
.tbl th,.tbl td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.tbl thead th{background:var(--warm-200);color:var(--charcoal);font-weight:800;white-space:nowrap}
.tbl tr:last-child td{border-bottom:none}

/* ===== Flow diagram ===== */
.flow{display:flex;flex-wrap:wrap;align-items:center;gap:0;margin:22px 0}
.flow-step{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:14px 16px;font-weight:700;font-size:14px;color:var(--charcoal);
  box-shadow:var(--shadow);flex:1 1 150px;text-align:center;min-width:120px;
}
.flow-arrow{flex:0 0 auto;padding:0 10px;color:var(--bronze);font-size:20px;font-weight:800}
@media (max-width:700px){
  /* 세로 한 줄 나열 대신 번호가 붙은 2열 그리드로 압축해 화면 한 번에 보이게 함 */
  .flow{display:grid;grid-template-columns:repeat(2,1fr);gap:8px;counter-reset:flowstep;margin:16px 0}
  .flow-arrow{display:none}
  .flow-step{
    flex:none;min-width:0;padding:10px 8px 9px;font-size:12.5px;line-height:1.3;
    counter-increment:flowstep;text-align:left;
  }
  .flow-step::before{
    content:counter(flowstep);display:flex;align-items:center;justify-content:center;
    width:18px;height:18px;margin-bottom:6px;border-radius:50%;
    background:var(--bronze);color:#fff;font-size:10.5px;font-weight:800;
  }
  .flow-step small{font-size:11px}
}

/* ===== Checklist ===== */
.check-list{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.check-list li{
  display:flex;gap:10px;align-items:flex-start;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-sm);padding:12px 14px;font-size:14.5px;
}
.check-list li::before{content:"";flex:0 0 auto;width:8px;height:8px;margin-top:6px;border-radius:2px;background:var(--sage-dark)}

/* ===== Diagnostic cards ===== */
.diag-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
@media (max-width:640px){.diag-grid{grid-template-columns:1fr}}
.diag-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow)}
.diag-card h3{margin-bottom:8px}
.diag-card .tag{display:inline-block;font-size:11.5px;font-weight:800;color:var(--bronze-dark);background:var(--warm-200);padding:3px 9px;border-radius:6px;margin-bottom:8px}

/* ===== Timeline ===== */
.timeline{position:relative;margin:24px 0;padding-left:30px;border-left:3px solid var(--warm-300)}
.tl-step{position:relative;padding-bottom:28px}
.tl-step:last-child{padding-bottom:0}
.tl-step::before{
  content:attr(data-n);position:absolute;left:-42px;top:0;width:28px;height:28px;border-radius:50%;
  background:var(--bronze);color:#fff;font-weight:800;font-size:13px;display:flex;align-items:center;justify-content:center;
}
.tl-step h3{margin-bottom:4px}

/* ===== Checkpoint (leak page) ===== */
.point-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
@media (max-width:760px){.point-grid{grid-template-columns:1fr 1fr}}
@media (max-width:480px){.point-grid{grid-template-columns:1fr}}
.point-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);padding:16px;text-align:center}
.point-card .n{display:inline-flex;width:30px;height:30px;border-radius:50%;background:var(--sage);color:#fff;align-items:center;justify-content:center;font-weight:800;margin-bottom:8px}

/* ===== Process steps (cleaning) ===== */
.process-row{display:flex;flex-wrap:wrap;gap:16px}
.process-step{flex:1 1 210px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow)}
.process-step .num{font-size:26px;font-weight:900;color:var(--warm-300);margin-bottom:6px}

/* ===== FAQ ===== */
.faq{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  cursor:pointer;padding:16px 4px;font-weight:700;font-size:15.5px;color:var(--charcoal);
  display:flex;justify-content:space-between;align-items:center;gap:12px;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:22px;color:var(--bronze);flex:0 0 auto}
.faq-item[open] summary::after{content:"–"}
.faq-item p{padding:0 4px 16px;color:var(--ink-soft);font-size:14.5px;margin:0}

/* ===== Related pages ===== */
.related-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px}
.related-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);padding:14px 16px;font-weight:700;font-size:14px}
.related-card:hover{border-color:var(--bronze)}
.related-card .k{display:block;font-size:12px;font-weight:600;color:var(--ink-soft);margin-bottom:2px}

/* ===== CTA band ===== */
.cta-band{background:var(--charcoal);color:#fff;border-radius:var(--radius);padding:32px;text-align:center}
.cta-band h2{color:#fff}
.cta-band p{color:#ddd4c2}

/* ===== Contact page ===== */
.contact-actions{display:flex;gap:12px;padding:14px 20px;background:var(--warm-100);border-bottom:1px solid var(--line);flex-wrap:wrap;justify-content:center}
.contact-actions .btn{flex:1 1 160px;max-width:240px}

/* ===== Footer ===== */
.site-footer{background:var(--charcoal);color:#cfc7b4;padding:20px 0;font-size:12.5px}
.footer-flex{display:flex;flex-wrap:wrap;gap:6px 14px;align-items:center;justify-content:space-between}
.footer-biz{display:flex;flex-wrap:wrap;gap:4px 14px}
.footer-links{display:flex;gap:14px;flex-wrap:wrap}
.footer-links a{color:#cfc7b4}
.footer-links a:hover{color:#fff}
@media (max-width:700px){.footer-flex{flex-direction:column;align-items:flex-start;gap:8px}}

/* ===== Mobile safety ===== */
@media (max-width:400px){
  .btn{padding:12px 18px;font-size:14.5px}
}