/* ==========================================================================
   싱크대문짝교체 — shared foundation (reset, tokens, header, footer, common UI)
   Page-specific layout lives in each page's own <style> block.
   ========================================================================== */

:root{
  --ink:#1a1a1a;
  --ink-soft:#3d3a35;
  --footer-bg:#121110;
  --wood:#c9a34e;
  --wood-dark:#a8792f;
  --paper:#faf9f6;
  --paper-alt:#f5f1e8;
  --line:#e8e2d4;
  --muted:#6c6a64;
  --text:#262521;
  --white:#ffffff;
  --radius:14px;
  --radius-sm:8px;
  --shadow:0 10px 30px -12px rgba(20,18,15,.22);
  --maxw:1180px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Pretendard","Apple SD Gothic Neo","Malgun Gothic",-apple-system,BlinkMacSystemFont,sans-serif;
  color:var(--text);
  background:var(--paper);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p,figure{margin:0}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(250,248,245,.92);
  backdrop-filter:saturate(160%) blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:0 4px 18px -10px rgba(30,37,48,.35)}
.site-header .wrap{
  display:flex;align-items:center;justify-content:space-between;
  height:68px;
}
.logo{
  display:flex;align-items:center;gap:10px;
  font-weight:800;font-size:1.05rem;letter-spacing:-.02em;color:var(--ink);
  white-space:nowrap;
}
.logo .logo-mark{
  width:34px;height:34px;border-radius:9px;background:var(--ink);
  position:relative;flex:none;
}
.logo .logo-mark::before{
  content:"";position:absolute;inset:6px;background:var(--paper);border-radius:4px;
}
.logo .logo-mark::after{
  content:"";position:absolute;left:50%;top:50%;width:3px;height:11px;
  background:var(--wood);border-radius:2px;transform:translate(-50%,-50%);
}
.main-nav{display:flex;align-items:center;gap:4px}
.main-nav a{
  display:inline-block;padding:10px 14px;border-radius:999px;
  font-size:.95rem;font-weight:600;color:var(--ink-soft);
  transition:background .15s ease,color .15s ease;
}
.main-nav a:hover,.main-nav a[aria-current="page"]{background:var(--ink);color:#fff}
.nav-cta{
  margin-left:6px;padding:10px 18px !important;border-radius:999px;
  background:var(--wood-dark) !important;color:#fff !important;
}
.nav-cta:hover{background:var(--wood) !important}

.hamburger{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:42px;height:42px;border:1px solid var(--line);border-radius:10px;
  background:#fff;cursor:pointer;
}
.hamburger span{display:block;width:20px;height:2px;background:var(--ink);margin:0 auto}

@media (max-width:860px){
  .main-nav{
    position:fixed;top:68px;left:0;right:0;height:calc(100vh - 68px);background:var(--paper);
    flex-direction:column;align-items:stretch;gap:0;padding:14px 20px;
    transform:translateY(-8px);opacity:0;pointer-events:none;
    transition:opacity .18s ease,transform .18s ease;
    border-top:1px solid var(--line);
    overflow-y:auto;
  }
  .main-nav.is-open{opacity:1;transform:translateY(0);pointer-events:auto}
  .main-nav a{padding:16px 6px;border-radius:0;border-bottom:1px solid var(--line);font-size:1.05rem}
  .nav-cta{margin-left:0;margin-top:12px;border-radius:12px !important;text-align:center}
  .hamburger{display:flex}
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:16px 28px;border-radius:999px;font-weight:700;font-size:1rem;
  border:2px solid transparent;cursor:pointer;transition:transform .12s ease,opacity .12s ease;
  min-height:52px;
}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{opacity:.88}
.btn-wood{background:var(--wood-dark);color:#fff}
.btn-wood:hover{opacity:.88}
.btn-outline{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-outline:hover{background:var(--ink);color:#fff}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.65);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.15)}
.btn-row{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- Section helpers ---------- */
.eyebrow{
  display:inline-block;font-size:.8rem;font-weight:700;letter-spacing:.06em;
  color:var(--wood-dark);text-transform:uppercase;margin-bottom:10px;
}
section{padding:72px 0}
@media (max-width:640px){section{padding:52px 0}}

/* ---------- Before/After gallery (shared component) ---------- */
.ba-set{
  display:grid;grid-template-columns:1fr 1fr;gap:18px;
  max-width:760px;margin:0 auto;
}
.ba-fig{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);background:#eee}
.ba-fig img{width:100%;height:100%;aspect-ratio:3/4;object-fit:cover}
.ba-tag{
  position:absolute;top:12px;left:12px;padding:6px 14px;border-radius:999px;
  font-size:.82rem;font-weight:800;letter-spacing:.02em;color:#fff;
  background:rgba(30,37,48,.82);backdrop-filter:blur(2px);
}
.ba-fig.is-after .ba-tag{background:rgba(138,94,55,.9)}
.ba-caption{text-align:center;margin-top:14px;color:var(--muted);font-size:.92rem}
@media (max-width:560px){
  .ba-set{grid-template-columns:1fr;max-width:360px}
}

/* ---------- FAQ ---------- */
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 4px;font-weight:700;font-size:1.02rem;
  display:flex;justify-content:space-between;align-items:center;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:1.4rem;font-weight:400;color:var(--wood-dark);flex:none}
.faq-item[open] summary::after{content:"–"}
.faq-item p{padding:0 4px 20px;color:var(--muted)}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--footer-bg);color:#c4c0b8;padding:14px 0;
  border-top:1px solid rgba(201,163,78,.28);
}
.footer-biz{font-size:.78rem;color:#7c7972;line-height:1.6}
.footer-biz .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:4px 24px}
.footer-biz strong{color:#a9a59d}
.footer-copy{font-size:.74rem;color:#5c5a55}

@media (max-width:640px){
  .site-footer{padding:10px 0}
  .footer-biz{line-height:1.4;font-size:.7rem}
  .footer-biz .wrap{gap:2px 12px}
  .footer-copy{font-size:.66rem}
}

/* ---------- Related pages (shared across detail pages) ---------- */
.related-links{padding:48px 0;border-top:1px solid var(--line)}
.related-list{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.related-list a{
  display:inline-block;padding:10px 18px;border:1px solid var(--line);border-radius:999px;
  font-size:.88rem;font-weight:600;color:var(--ink-soft);
}
.related-list a:hover{background:var(--ink);color:#fff;border-color:var(--ink)}

/* ---------- Misc shared ---------- */
.container-narrow{max-width:820px;margin:0 auto}
.text-center{text-align:center}

/* ---------- Data table (cost/comparison tables, shared across pages) ---------- */
.data-table-wrap{margin-top:28px;overflow-x:auto;border-radius:var(--radius);box-shadow:var(--shadow)}
.data-table{width:100%;border-collapse:collapse;font-size:.92rem;background:#fff;min-width:520px}
.data-table th,.data-table td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--line)}
.data-table thead th{background:var(--wood-dark);color:#fff;font-weight:700}
.data-table tbody tr:last-child td{border-bottom:none}
.data-table tbody tr:nth-child(even){background:var(--paper-alt)}

/* ---------- Related link cards (6-card grid, region pages) ---------- */
.relcard-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:32px}
a.relcard{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:20px 18px;font-size:.95rem;font-weight:700;color:var(--ink);
}
a.relcard span{display:block;margin-top:6px;font-size:.82rem;font-weight:400;color:var(--muted)}
a.relcard:hover{border-color:var(--wood-dark);color:var(--wood-dark)}
@media (max-width:820px){.relcard-grid{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.relcard-grid{grid-template-columns:1fr}}

/* ---------- Region page hero (area-services detail pages) ---------- */
.region-hero{background:var(--paper-alt);padding:56px 0;border-bottom:1px solid var(--line)}
.region-hero .lede{margin-top:16px;color:var(--ink-soft);max-width:64ch;font-size:1.03rem}
.region-hero .btn-row{margin-top:26px}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}