/* ============================================================
   layout.css — 헤더 · 푸터 · 히어로 · 섹션 레이아웃
   ============================================================ */

/* ---------------- Header / Nav ---------------- */
.site-header {
  position: sticky; top: 0; z-index: var(--z-header);
  height: var(--nav-h);
  background: rgba(255, 255, 255, 0.82);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--t-base), box-shadow var(--t-base);
}
.site-header.is-scrolled {
  border-bottom-color: var(--c-seam);
  box-shadow: var(--shadow-nav);
}

.nav {
  height: 100%;
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px;
}
.nav__logo {
  display: inline-flex; align-items: center; gap: 9px;
  font-size: 1.25rem; font-weight: var(--fw-bold);
  letter-spacing: var(--tracking-tight); color: var(--c-primary);
}
.nav__mark {
  width: 30px; height: 30px; flex-shrink: 0;
  display: grid; place-items: center;
  border-radius: var(--r-sm);
  background: var(--c-primary); color: var(--c-on-dark);
  font-size: 0.95rem; font-weight: var(--fw-bold);
  letter-spacing: 0;
}

.nav__menu { display: flex; align-items: center; gap: 4px; }
.nav__link {
  padding: 8px 14px;
  font-size: var(--fs-sm); font-weight: var(--fw-semi);
  color: var(--c-ink); border-radius: var(--r-sm);
  transition: color var(--t-fast), background var(--t-fast);
}
.nav__link:hover { color: var(--c-primary); background: var(--c-smoke); }
.nav__link[aria-current="page"] { color: var(--c-primary); }
.nav__cta { margin-left: 8px; }

/* Hamburger */
.nav__toggle {
  display: none;
  width: 44px; height: 44px;
  align-items: center; justify-content: center;
}
.nav__toggle .bars { position: relative; width: 22px; height: 16px; }
.nav__toggle .bars span {
  position: absolute; left: 0; width: 100%; height: 2px;
  background: var(--c-ink); border-radius: 2px;
  transition: transform var(--t-base), opacity var(--t-fast);
}
.nav__toggle .bars span:nth-child(1) { top: 0; }
.nav__toggle .bars span:nth-child(2) { top: 7px; }
.nav__toggle .bars span:nth-child(3) { top: 14px; }
body.menu-open .nav__toggle .bars span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
body.menu-open .nav__toggle .bars span:nth-child(2) { opacity: 0; }
body.menu-open .nav__toggle .bars span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 880px) {
  .nav__toggle { display: inline-flex; }
  .nav__menu {
    position: fixed; inset: var(--nav-h) 0 0 0;
    flex-direction: column; align-items: stretch; justify-content: flex-start;
    gap: 4px; padding: 24px var(--container-pad) 48px;
    background: var(--c-canvas);
    transform: translateX(100%);
    transition: transform var(--t-base) var(--ease-out);
    overflow-y: auto;
    z-index: var(--z-menu);
  }
  body.menu-open .nav__menu { transform: translateX(0); }
  .nav__link {
    padding: 16px; font-size: var(--fs-lead); border-radius: var(--r-md);
  }
  .nav__cta { margin: 14px 0 0; }
  .nav__cta .btn { width: 100%; }
}

/* ---------------- Hero ---------------- */
.hero {
  background: var(--g-hero);
  padding-block: clamp(64px, 9vw, 124px);
  text-align: center;
}
.hero__label {
  display: inline-block;
  font-size: var(--fs-caption); font-weight: var(--fw-semi);
  letter-spacing: 0.05em; color: var(--c-primary);
  padding: 6px 14px; border-radius: var(--r-pill);
  background: var(--c-primary-wash);
  margin-bottom: var(--sp-20);
}
.hero h1 { max-width: 18ch; margin: 0 auto var(--sp-20); }
.hero__sub {
  font-size: var(--fs-lead); color: var(--c-ink-soft);
  line-height: var(--lh-snug);
  max-width: 60ch; margin: 0 auto var(--sp-32);
}
.hero__actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

.hero--sub { padding-block: clamp(56px, 7vw, 92px); }
.hero--sub h1 { font-size: var(--fs-display); }

/* ---------------- Footer ---------------- */
.site-footer {
  background: var(--c-smoke);
  padding-block: var(--sp-64) var(--sp-32);
}
.site-footer__top {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.3fr;
  gap: 40px;
}
.site-footer__brand-name {
  font-size: 1.2rem; font-weight: var(--fw-bold);
  color: var(--c-primary); margin-bottom: var(--sp-16);
}
.site-footer__slogan {
  font-size: var(--fs-sm); color: var(--c-ink-soft);
  line-height: var(--lh-base); max-width: 34ch;
}
.site-footer__slogan strong { color: var(--c-ink); }

.footer-col h3 {
  font-size: var(--fs-caption); font-weight: var(--fw-bold);
  letter-spacing: 0.03em; color: var(--c-ink);
  margin-bottom: var(--sp-16);
}
.footer-col ul { display: flex; flex-direction: column; gap: 11px; }
.footer-col a, .footer-col li {
  font-size: var(--fs-sm); color: var(--c-ink-soft);
  transition: color var(--t-fast);
}
.footer-col a:hover { color: var(--c-primary); }
.footer-col .ico-row { display: flex; gap: 8px; align-items: flex-start; }
.footer-col .ico-row svg { width: 16px; height: 16px; flex-shrink: 0; margin-top: 4px; color: var(--c-ink-muted); }

.site-footer__legal {
  margin-top: var(--sp-48); padding-top: var(--sp-24);
  border-top: 1px solid var(--c-hairline);
  font-size: var(--fs-fine); color: var(--c-ink-muted);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px;
}

@media (max-width: 880px) {
  .site-footer__top { grid-template-columns: 1fr 1fr; gap: 32px; }
  .site-footer__brand { grid-column: 1 / -1; }
}
@media (max-width: 519px) {
  .site-footer__top { grid-template-columns: 1fr; }
}

/* ---------------- 2단 미디어 레이아웃 (프로필 등) ---------------- */
.media-split {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: clamp(28px, 4vw, 56px);
  align-items: center;
}
.media-split__img {
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: var(--shadow-photo);
  background: var(--c-smoke);
}
.media-split__img img { width: 100%; height: 100%; object-fit: cover; }
@media (max-width: 767px) {
  .media-split { grid-template-columns: 1fr; }
  .media-split__img { max-width: 420px; margin-inline: auto; }
}

/* CTA 밴드 */
.cta-band { text-align: center; }
.cta-band h2 { margin-bottom: var(--sp-12); }
.cta-band__sub {
  font-size: var(--fs-lead); color: var(--c-ink-soft);
  margin-bottom: var(--sp-32);
}
.cta-band__actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* 본문 prose (가이드/서비스 상세) */
.prose { max-width: 760px; margin-inline: auto; }
.prose p { margin-bottom: 1.1em; }
.prose h3 { margin: 1.6em 0 0.6em; }
.prose .placeholder {
  color: var(--c-ink-muted); text-align: center;
  padding: 64px 24px; background: var(--c-smoke);
  border-radius: var(--r-lg); border: 1px dashed var(--c-hairline);
}