/* ==== Nav ==== */
.nav{
  position:sticky;top:0;z-index:100;background:rgba(250,248,243,.92);
  backdrop-filter:blur(8px);border-bottom:1px solid var(--c-line);
}
.nav__in{
  max-width:var(--container);margin:0 auto;padding:.85rem var(--space-3);
  display:flex;align-items:center;justify-content:space-between;gap:1rem;
}
.nav__logo{display:flex;align-items:center;gap:.6rem;font-family:var(--font-heading);font-weight:600}
.nav__logo-ko{font-size:1.05rem}
.nav__logo-en{display:block;font-size:.68rem;letter-spacing:.08em;color:var(--c-ink-soft)}
.nav__links{display:flex;gap:1.4rem;font-size:.92rem}
.nav__links a:hover{color:var(--c-accent)}
.nav__toggle{display:none;background:none;border:0;font-size:1.4rem;cursor:pointer;color:var(--c-ink)}

@media (max-width:900px){
  .nav__links{
    position:fixed;inset:56px 0 0 0;background:var(--c-bg);flex-direction:column;
    padding:2rem var(--space-3);gap:1.3rem;font-size:1.1rem;transform:translateY(-8px);
    opacity:0;pointer-events:none;transition:opacity .25s ease,transform .25s ease;
  }
  .nav__links.is-open{opacity:1;pointer-events:auto;transform:translateY(0)}
  .nav__toggle{display:block}
}

/* ==== Buttons ==== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.4rem;
  padding:.8rem 1.6rem;border-radius:var(--radius-full);font-weight:600;font-size:.95rem;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease;
  border:1px solid transparent;cursor:pointer;
}
.btn-primary{background:var(--c-ink);color:#fff}
.btn-primary:hover{background:var(--c-accent-dark);transform:translateY(-2px);box-shadow:0 8px 20px rgba(26,24,21,.18)}
.btn-outline{background:transparent;color:var(--c-ink);border-color:var(--c-ink)}
.btn-outline:hover{background:var(--c-ink);color:#fff;transform:translateY(-2px)}
.btn-outline-w{background:transparent;color:#fff;border-color:rgba(255,255,255,.7)}
.btn-outline-w:hover{background:#fff;color:var(--c-ink)}

/* ==== Hero ==== */
.hero{position:relative;min-height:78vh;display:flex;align-items:flex-end;overflow:hidden;color:#fff}
.hero-bg{position:absolute;inset:0;object-fit:cover;width:100%;height:100%}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(26,24,21,.15) 0%,rgba(26,24,21,.75) 100%)}
.hero-content{position:relative;z-index:2;padding:var(--space-5) 0}
.hero-tag{color:var(--c-accent);font-size:.8rem;letter-spacing:.1em;text-transform:uppercase;font-weight:600}
.hero h1{color:#fff;margin-top:.6rem}
.hero-desc{max-width:46ch;color:rgba(255,255,255,.86);font-size:1.05rem}
.hero-actions{display:flex;gap:.8rem;margin-top:1.6rem;flex-wrap:wrap}
.hero-stats{display:flex;gap:2rem;margin-top:2.4rem;flex-wrap:wrap}
.hero-stat b{font-family:var(--font-heading);font-size:1.6rem;display:block}
.hero-stat span{font-size:.8rem;color:rgba(255,255,255,.75)}

.sub-hero{position:relative;min-height:44vh;display:flex;align-items:center;color:#fff;overflow:hidden}
.sub-hero-bg{position:absolute;inset:0;background-size:cover;background-position:center}
.sub-hero-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(26,24,21,.35),rgba(26,24,21,.82))}
.sub-hero-shell{position:relative;z-index:2;padding-block:var(--space-5)}
.sub-breadcrumb{font-size:.82rem;color:rgba(255,255,255,.7);margin-bottom:.8rem}
.sub-breadcrumb a{color:rgba(255,255,255,.9)}
.sub-tag{color:var(--c-accent);font-size:.8rem;letter-spacing:.1em;text-transform:uppercase;font-weight:600;display:block;margin-bottom:.4rem}
.sub-hero-title{color:#fff}
.sub-hero-desc{color:rgba(255,255,255,.85);max-width:48ch}
.sub-hero-actions{display:flex;gap:.8rem;margin-top:1.4rem;flex-wrap:wrap}

/* ==== Cards ==== */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1.4rem}
.svc-card{
  background:var(--c-white);border:1px solid var(--c-line);border-radius:var(--radius-md);
  overflow:hidden;transition:transform .25s ease,box-shadow .25s ease;
}
.svc-card:hover{transform:translateY(-6px);box-shadow:0 16px 34px rgba(26,24,21,.12)}
.svc-card img{aspect-ratio:4/3;object-fit:cover}
.svc-body{padding:1.3rem 1.2rem 1.5rem}
.svc-tag{font-size:.72rem}
.svc-title{margin:.3rem 0 .4rem}
.svc-desc{color:var(--c-ink-soft);font-size:.92rem}
.svc-link{display:inline-block;margin-top:.7rem;font-size:.86rem;font-weight:600;color:var(--c-accent)}

@media (max-width:900px){
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:600px){
  .card-grid{grid-template-columns:1fr}
}

/* ==== Split section ==== */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:2.8rem;align-items:start}
.split.reverse{direction:rtl}
.split.reverse > *{direction:ltr}
@media (max-width:860px){
  .split{grid-template-columns:1fr}
}

.feat-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem;margin-top:1.2rem}
.feat-item{background:var(--c-surface);border-radius:var(--radius-md);padding:1.2rem 1.1rem}
.feat-num{color:var(--c-accent);font-family:var(--font-heading);font-size:1rem}
.feat-title{margin:.3rem 0}
.feat-desc{font-size:.88rem;color:var(--c-ink-soft);margin:0}

.list-check{list-style:none;padding:0;margin:0;display:grid;gap:.7rem}
.list-check li{padding-left:1.6rem;position:relative;color:var(--c-ink-soft)}
.list-check li::before{content:'';position:absolute;left:0;top:.5em;width:8px;height:8px;border-radius:50%;background:var(--c-accent)}

.tip{background:var(--c-surface);border-left:3px solid var(--c-accent);padding:.9rem 1.1rem;border-radius:0 var(--radius-sm) var(--radius-sm) 0;font-size:.92rem}

.timeline{display:grid;gap:1rem}
.timeline-item{display:grid;grid-template-columns:64px 1fr;gap:.9rem;align-items:start}
.timeline-d{font-family:var(--font-heading);color:var(--c-accent);font-weight:600}
.timeline-t{margin:0 0 .2rem;font-weight:600}
.timeline-s{margin:0;font-size:.88rem;color:var(--c-ink-soft)}

table.cmp{width:100%;border-collapse:collapse;font-size:.9rem}
table.cmp th,table.cmp td{padding:.65rem .7rem;border-bottom:1px solid var(--c-line);text-align:left}
table.cmp th{color:var(--c-accent);font-weight:600}

/* ==== FAQ ==== */
.faq-item{border-bottom:1px solid var(--c-line);padding:1.1rem 0}
.faq-q{display:flex;justify-content:space-between;align-items:center;cursor:pointer;font-weight:600;gap:1rem}
.faq-q::after{content:'+';color:var(--c-accent);font-size:1.3rem;flex-shrink:0;transition:transform .2s ease}
.faq-item.is-open .faq-q::after{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease;color:var(--c-ink-soft);font-size:.94rem}
.faq-item.is-open .faq-a{max-height:400px;padding-top:.7rem}

/* ==== Related links / aside ==== */
.related-links{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem}
.related-links a{
  background:var(--c-surface);border-radius:var(--radius-sm);padding:.9rem 1rem;font-size:.9rem;font-weight:600;
  display:block;transition:background .2s ease;
}
.related-links a:hover{background:var(--c-line)}
@media (max-width:700px){.related-links{grid-template-columns:1fr}}

/* ==== Sticky mobile CTA ==== */
.msb{
  position:fixed;left:0;right:0;bottom:0;z-index:90;background:var(--c-white);
  border-top:1px solid var(--c-line);display:none;padding:.6rem var(--space-2);
  gap:.6rem;box-shadow:0 -6px 18px rgba(26,24,21,.08);
}
@media (max-width:767px){.msb{display:flex}}
.msb-btn{flex:1;text-align:center;padding:.8rem;border-radius:var(--radius-full);font-weight:600;font-size:.92rem}
.msb-btn--cta{background:var(--c-ink);color:#fff}
.msb-btn--outline{background:var(--c-surface);color:var(--c-ink)}

/* ==== Footer ==== */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.78);padding:var(--space-5) 0 calc(var(--space-4) + 60px)}
.site-footer a{color:#fff}
.footer-grid{display:flex;justify-content:space-between;gap:2rem;flex-wrap:wrap}
.footer-legal{font-size:.82rem;line-height:1.9;color:rgba(255,255,255,.6)}
@media (max-width:767px){.site-footer{padding-bottom:calc(var(--space-4) + 70px)}}