/* ===== 욕실보수공사 — design tokens ===== */
:root{
  --ink:#181614;
  --stone-900:#221f1c;
  --stone-700:#4d4842;
  --stone-500:#7c766e;
  --stone-300:#c9c3ba;
  --stone-200:#e3ded6;
  --stone-100:#efebe4;
  --paper:#faf8f4;
  --line:#e1dbd0;
  --accent:#3c5568;
  --accent-ink:#22323e;
  --accent-soft:#e7edf1;
  --warn:#8a4b3c;
  --radius:2px;
  --font: -apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Malgun Gothic","Pretendard",sans-serif;
  --wrap:1180px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:var(--font);color:var(--ink);background:var(--paper);
  line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
ul{list-style:none;margin:0;padding:0}
h1,h2,h3,p,figure{margin:0}
table{border-collapse:collapse;width:100%}
button{font:inherit;cursor:pointer}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}

/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:50;background:rgba(250,248,244,.94);
  backdrop-filter:saturate(140%) blur(8px);border-bottom:1px solid var(--line);
}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;height:60px}
.brand-mark{font-weight:700;font-size:1.05rem;letter-spacing:-.01em}
.brand-mark span{color:var(--accent)}
.main-nav{display:none}
.main-nav ul{display:flex;gap:28px}
.main-nav a{font-size:.92rem;font-weight:600;color:var(--stone-700);transition:color .15s}
.main-nav a:hover{color:var(--accent)}
.nav-cta{display:none}
.hamburger{
  width:40px;height:40px;border:1px solid var(--line);background:transparent;border-radius:var(--radius);
  display:flex;align-items:center;justify-content:center;
}
.hamburger span,.hamburger span::before,.hamburger span::after{
  content:"";display:block;width:18px;height:2px;background:var(--ink);position:relative;
}
.hamburger span::before{position:absolute;top:-6px}
.hamburger span::after{position:absolute;top:6px}
.mobile-nav{
  display:none;position:fixed;inset:60px 0 0 0;background:var(--paper);z-index:49;
  padding:24px 20px;overflow-y:auto;
}
.mobile-nav.open{display:block}
.mobile-nav ul{display:flex;flex-direction:column;gap:4px}
.mobile-nav a{display:block;padding:16px 4px;font-size:1.05rem;font-weight:700;border-bottom:1px solid var(--line)}
@media(min-width:900px){
  .main-nav{display:block}
  .nav-cta{display:inline-flex}
  .hamburger{display:none}
}

/* ===== Breadcrumb ===== */
.breadcrumb{padding:12px 0;font-size:.8rem;color:var(--stone-500)}
.breadcrumb ol{display:flex;flex-wrap:wrap;gap:6px}
.breadcrumb a{color:var(--stone-500)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb li:not(:last-child)::after{content:"/";margin-left:6px;color:var(--stone-300)}
.breadcrumb li[aria-current]{color:var(--stone-700);font-weight:600}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:var(--radius);font-weight:700;font-size:.95rem;
  border:1px solid var(--ink);white-space:nowrap;
}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{background:var(--accent-ink);border-color:var(--accent-ink)}
.btn-ghost{background:transparent;color:var(--ink)}
.btn-ghost:hover{background:var(--stone-100)}
.btn-accent{background:var(--accent);border-color:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-ink);border-color:var(--accent-ink)}
.btn-block{width:100%}
@media(min-width:520px){.btn-block{width:auto}}

/* ===== Hero base ===== */
.hero{position:relative;border-bottom:1px solid var(--line);overflow:hidden}
.hero-inner{padding:40px 0 48px}
.hero h1{font-size:clamp(1.9rem,6vw,3.1rem);line-height:1.18;font-weight:800;letter-spacing:-.02em}
.hero .lede{margin-top:18px;font-size:1.05rem;color:var(--stone-700);max-width:56ch}
.hero .cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.eyebrow{
  display:inline-block;font-size:.78rem;font-weight:700;letter-spacing:.08em;
  color:var(--accent);text-transform:uppercase;margin-bottom:14px;
}

/* --- split --- */
.hero--split .hero-grid{display:grid;gap:28px}
.hero--split .hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius)}
@media(min-width:860px){
  .hero--split .hero-grid{grid-template-columns:1.05fr .95fr;align-items:center}
  .hero--split .hero-media img{aspect-ratio:auto;height:100%}
}

/* --- fullbleed --- */
.hero--fullbleed{color:#fff}
.hero--fullbleed .hero-bg{position:absolute;inset:0}
.hero--fullbleed .hero-bg img{width:100%;height:100%;object-fit:cover}
.hero--fullbleed .hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(20,18,16,.35) 0%,rgba(20,18,16,.55) 55%,rgba(20,18,16,.86) 100%);
}
.hero--fullbleed .hero-inner{position:relative;min-height:420px;display:flex;flex-direction:column;justify-content:flex-end;padding-bottom:44px}
.hero--fullbleed .lede{color:#e9e6df}
.hero--fullbleed .eyebrow{color:#cfe0ea}

/* --- asymmetric --- */
.hero--asymmetric .hero-grid{display:grid;gap:26px}
.hero--asymmetric .hero-media{position:relative;padding:14px 0 0 14px}
.hero--asymmetric .hero-media::before{
  content:"";position:absolute;left:0;top:0;width:88%;height:88%;border:1px solid var(--accent);z-index:0;
}
.hero--asymmetric .hero-media img{position:relative;z-index:1;aspect-ratio:4/3;object-fit:cover}
@media(min-width:860px){
  .hero--asymmetric .hero-grid{grid-template-columns:1fr 1fr;align-items:center}
  .hero--asymmetric .hero-media img{aspect-ratio:3/4;height:460px;width:100%}
}

/* --- stacked-grid (tile mosaic) --- */
.hero--stacked-grid .tile-mosaic{
  display:grid;grid-template-columns:repeat(4,1fr);gap:3px;margin-top:26px;
}
.hero--stacked-grid .tile-mosaic img{aspect-ratio:1/1;object-fit:cover}
.hero--stacked-grid .tile-mosaic div:nth-child(odd){margin-top:14px}

/* --- minimal line (silicone/seam) --- */
.hero--minimal .hero-grid{display:grid;gap:24px}
.hero--minimal .seam-rule{height:2px;background:repeating-linear-gradient(90deg,var(--accent) 0 18px,transparent 18px 26px);margin:22px 0}
.hero--minimal .hero-media img{aspect-ratio:16/9;object-fit:cover}
@media(min-width:860px){
  .hero--minimal .hero-grid{grid-template-columns:1fr .8fr;align-items:center}
}

/* --- diagnostic (leak / water trace) --- */
.hero--diagnostic{background:var(--stone-900);color:#fff}
.hero--diagnostic .hero-grid{display:grid;gap:24px}
.hero--diagnostic .lede{color:#d8d3ca}
.hero--diagnostic .eyebrow{color:#8fb2c7}
.hero--diagnostic .trace{
  position:relative;height:3px;width:100%;margin:24px 0;
  background:linear-gradient(90deg,transparent,#5c8aa8,transparent);
}
.hero--diagnostic .hero-media img{aspect-ratio:4/3;object-fit:cover;filter:grayscale(.15)}
@media(min-width:860px){
  .hero--diagnostic .hero-grid{grid-template-columns:1fr .9fr;align-items:center}
}

/* ===== Section ===== */
.section{padding:56px 0}
.section-tight{padding:36px 0}
.section-title{font-size:clamp(1.4rem,3.6vw,2rem);font-weight:800;letter-spacing:-.01em}
.section-sub{color:var(--stone-500);margin-top:10px;max-width:64ch}
.section-head{margin-bottom:30px}
.bg-stone{background:var(--stone-100)}
.bg-ink{background:var(--stone-900);color:#fff}
.bg-ink .section-sub{color:#cfc9bf}

/* ===== Prose content ===== */
.prose{max-width:74ch}
.prose p{margin-bottom:18px;color:var(--stone-700)}
.prose h2{font-size:1.5rem;font-weight:800;margin:44px 0 16px;letter-spacing:-.01em}
.prose h3{font-size:1.15rem;font-weight:700;margin:28px 0 12px}
.prose ul{margin:0 0 18px}
.prose li{position:relative;padding-left:20px;margin-bottom:8px;color:var(--stone-700)}
.prose li::before{content:"";position:absolute;left:0;top:.7em;width:6px;height:6px;background:var(--accent)}

/* ===== Diagnostic table ===== */
.diag-table{margin:20px 0 8px;border-top:2px solid var(--ink)}
.diag-table th,.diag-table td{
  text-align:left;padding:14px 12px;border-bottom:1px solid var(--line);font-size:.94rem;vertical-align:top;
}
.diag-table th{width:34%;font-weight:700;color:var(--stone-900);background:var(--stone-100)}
.diag-table td{color:var(--stone-700)}

/* ===== Checklist / timeline ===== */
.checklist{border:1px solid var(--line);border-radius:var(--radius);padding:22px 22px 6px;background:#fff}
.checklist li{padding-left:28px;margin-bottom:16px}
.checklist li::before{
  content:"";position:absolute;left:0;top:2px;width:16px;height:16px;border:2px solid var(--accent);border-radius:2px;background:none;
}
.timeline{display:flex;flex-direction:column;gap:0;margin:24px 0;counter-reset:step}
.timeline li{
  counter-increment:step;position:relative;padding:0 0 26px 44px;border-left:2px solid var(--line);margin-left:14px;
}
.timeline li:last-child{border-color:transparent;padding-bottom:0}
.timeline li::before{
  content:counter(step);position:absolute;left:-15px;top:-2px;width:28px;height:28px;border-radius:50%;
  background:var(--ink);color:#fff;font-size:.8rem;font-weight:700;display:flex;align-items:center;justify-content:center;
}
.timeline strong{display:block;font-size:1rem;margin-bottom:4px}
.timeline span{color:var(--stone-500);font-size:.9rem}

/* ===== Material card ===== */
.material-grid{display:grid;gap:16px;grid-template-columns:repeat(2,1fr);margin:22px 0}
@media(min-width:640px){.material-grid{grid-template-columns:repeat(3,1fr)}}
.material-card{border:1px solid var(--line);padding:16px;background:#fff}
.material-card b{display:block;font-size:.92rem;margin-bottom:6px}
.material-card p{font-size:.85rem;color:var(--stone-500);margin:0}

/* ===== Callout ===== */
.callout{
  border-left:3px solid var(--accent);background:var(--accent-soft);padding:18px 20px;margin:24px 0;font-size:.95rem;color:var(--accent-ink);
}

/* ===== Cards (keyword/service/area) ===== */
.card-grid{display:grid;gap:18px;grid-template-columns:repeat(2,1fr)}
@media(min-width:640px){.card-grid{grid-template-columns:repeat(3,1fr)}}
@media(min-width:900px){.card-grid.cols-4{grid-template-columns:repeat(4,1fr)}}
.info-card{
  display:block;border:1px solid var(--line);background:#fff;overflow:hidden;transition:box-shadow .18s,transform .18s;
}
.info-card:hover{box-shadow:0 10px 26px rgba(20,18,16,.08);transform:translateY(-2px)}
.info-card .thumb{aspect-ratio:1/1;overflow:hidden;background:var(--stone-100)}
.info-card .thumb img{width:100%;height:100%;object-fit:cover}
.info-card .body{padding:14px 14px 18px}
.info-card .kw{font-weight:700;font-size:.98rem;margin-bottom:6px}
.info-card .desc{font-size:.82rem;color:var(--stone-500);margin-bottom:10px}
.info-card .more{font-size:.8rem;font-weight:700;color:var(--accent)}

/* ===== Carousel ===== */
.carousel{display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:10px;margin:0 -20px;padding-left:20px;padding-right:20px}
.carousel::-webkit-scrollbar{height:6px}
.carousel::-webkit-scrollbar-thumb{background:var(--stone-300)}
.carousel .info-card{flex:0 0 240px;scroll-snap-align:start}
@media(min-width:900px){
  .carousel{overflow:visible;flex-wrap:wrap;margin:0}
  .carousel .info-card{flex:1 1 calc(33.333% - 12px)}
}

/* ===== Before/After slider ===== */
.ba{
  position:relative;aspect-ratio:4/3;overflow:hidden;border-radius:var(--radius);
  touch-action:pan-y;user-select:none;background:var(--stone-200);
}
.ba img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;pointer-events:none}
.ba .ba-after-wrap{position:absolute;inset:0;overflow:hidden;width:50%}
.ba .ba-after-wrap img{width:auto;min-width:100%}
.ba .ba-handle{
  position:absolute;top:0;bottom:0;left:50%;width:0;transform:translateX(-50%);
  cursor:ew-resize;display:flex;align-items:center;justify-content:center;
}
.ba .ba-handle::before{content:"";position:absolute;top:0;bottom:0;left:50%;width:2px;background:#fff;transform:translateX(-50%)}
.ba .ba-grip{
  width:36px;height:36px;border-radius:50%;background:#fff;box-shadow:0 2px 8px rgba(0,0,0,.3);
  display:flex;align-items:center;justify-content:center;font-size:.9rem;color:var(--ink);position:relative;z-index:2;
}
.ba-label{
  position:absolute;top:10px;font-size:.7rem;font-weight:800;letter-spacing:.04em;color:#fff;
  background:rgba(20,18,16,.6);padding:4px 9px;border-radius:2px;z-index:2;text-transform:uppercase;
}
.ba-label.before{left:10px}
.ba-label.after{right:10px}
.ba-caption{margin-top:12px;font-size:.88rem;color:var(--stone-500)}
.ba-caption b{color:var(--ink);font-weight:700}
.plain-photo-card{margin:0}
.plain-photo-card .ppc-frame{aspect-ratio:4/3;overflow:hidden;border-radius:var(--radius)}
.plain-photo-card img{width:100%;height:100%;object-fit:cover}
.plain-photo-card figcaption{margin-top:12px;font-size:.88rem;color:var(--stone-500)}
.plain-photo-card figcaption b{color:var(--ink);font-weight:700}
.plain-photo-card figcaption{margin-top:12px;font-size:.88rem;color:var(--stone-500)}
.case-grid{display:grid;gap:24px;grid-template-columns:1fr}
@media(min-width:700px){.case-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1100px){.case-grid{grid-template-columns:repeat(3,1fr)}}

/* ===== FAQ ===== */
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;text-align:left;background:none;border:none;padding:20px 0;display:flex;justify-content:space-between;
  align-items:center;gap:16px;font-weight:700;font-size:1rem;color:var(--ink);
}
.faq-q::after{content:"+";font-size:1.3rem;font-weight:400;color:var(--accent);flex-shrink:0}
.faq-item.open .faq-q::after{content:"−"}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease}
.faq-a p{padding:0 0 20px;color:var(--stone-700);font-size:.95rem}

/* ===== Related ===== */
.related-list{display:grid;gap:10px;grid-template-columns:1fr}
@media(min-width:640px){.related-list{grid-template-columns:1fr 1fr}}
.related-list a{
  display:flex;justify-content:space-between;align-items:center;padding:16px 18px;border:1px solid var(--line);
  background:#fff;font-weight:600;font-size:.92rem;
}
.related-list a:hover{border-color:var(--accent);color:var(--accent)}

/* ===== CTA band ===== */
.cta-band{background:var(--stone-900);color:#fff;padding:52px 0;text-align:center}
.cta-band h2{font-size:clamp(1.3rem,3.4vw,1.9rem);font-weight:800;margin-bottom:14px}
.cta-band p{color:#cfc9bf;margin-bottom:26px}

/* ===== Footer ===== */
.site-footer{border-top:1px solid var(--line);padding:18px 0}
.biz-info{display:flex;flex-wrap:wrap;gap:4px 14px;font-size:.78rem;color:var(--stone-500)}
.biz-info b{color:var(--stone-700);font-weight:600}
.footer-bottom{margin-top:10px;font-size:.72rem;color:var(--stone-300)}

/* ===== Diagram (repair zones) ===== */
.zone-grid{display:grid;gap:14px;grid-template-columns:repeat(2,1fr);margin:22px 0}
@media(min-width:640px){.zone-grid{grid-template-columns:repeat(4,1fr)}}
.zone-card{border:1px solid var(--line);padding:18px 14px;text-align:center;background:#fff}
.zone-card .num{font-weight:800;color:var(--accent);font-size:.78rem;letter-spacing:.06em;margin-bottom:8px}
.zone-card b{display:block;font-size:.9rem;margin-bottom:6px}
.zone-card p{font-size:.8rem;color:var(--stone-500);margin:0}

/* ===== 404 ===== */
.error-page{min-height:60vh;display:flex;align-items:center;justify-content:center;text-align:center;padding:60px 20px}
.error-page .code{font-size:4rem;font-weight:800;color:var(--stone-300)}