/* ============================================================
   STIZ Layout — Header · Footer · Search Overlay · Mobile Drawer
   기반: 디자인 핸드오프 shop/shared.jsx
   병합일: 2026-07-09

   구조:
   1. Header (.stiz-header) — sticky, mega-menu 2분화, 유틸리티
   2. Search Overlay (.stiz-search-overlay) — backdrop-blur + 중앙 박스
   3. Mobile Drawer (.stiz-drawer) — 우측 slide-in
   4. Footer (.stiz-footer) — dark, 4-column + newsletter + legal
   ============================================================ */


/* ══════════════════════════════════════════════════════════
   1. Header — .stiz-header
   ══════════════════════════════════════════════════════════ */
.stiz-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  transition: background-color var(--dur-base) var(--ease-standard),
              box-shadow var(--dur-base) var(--ease-standard);
}

/* 메인 페이지의 투명 히어로 헤더 — body에 .page-main 클래스가 있을 때 */
body.page-main .stiz-header {
  background: transparent;
  border-bottom-color: transparent;
}
body.page-main .stiz-header.is-scrolled {
  background: var(--surface);
  border-bottom-color: var(--border);
  box-shadow: var(--shadow-sm);
}

.stiz-header-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
  height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.stiz-header-logo {
  font-size: 26px;
  font-weight: var(--fw-black);
  letter-spacing: var(--ls-tighter);
  color: var(--stiz-black);
  text-decoration: none;
  flex-shrink: 0;
}
body.page-main .stiz-header:not(.is-scrolled) .stiz-header-logo { color: var(--stiz-white); }

/* 데스크탑 네비 */
.stiz-nav-desktop {
  display: flex;
  align-items: center;
  gap: 34px;
}
.stiz-nav-item-wrap {
  position: relative;
  display: inline-flex;
}
.stiz-nav-item {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  font-size: 16px;
  font-weight: var(--fw-bold);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--gray-700);
  padding: 26px 0;
  border-bottom: 2px solid transparent;
  transition: color var(--dur-fast) var(--ease-standard),
              border-color var(--dur-fast) var(--ease-standard);
}
.stiz-nav-item:hover { color: var(--stiz-black); }
.stiz-nav-item.is-active { color: var(--stiz-black); border-bottom-color: var(--stiz-black); }
.stiz-nav-item[data-accent="true"] { color: var(--accent); }
body.page-main .stiz-header:not(.is-scrolled) .stiz-nav-item {
  color: var(--text-on-dark-muted);
}
body.page-main .stiz-header:not(.is-scrolled) .stiz-nav-item[data-accent="true"] { color: var(--stiz-white); }
body.page-main .stiz-header:not(.is-scrolled) .stiz-nav-item:hover { color: var(--stiz-white); }

.stiz-nav-item .material-symbols-outlined { font-size: 20px; }

/* Mega-menu */
.stiz-mega {
  position: absolute;
  top: 100%;
  left: -20px;
  margin-top: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-xl);
  padding: 26px;
  border-radius: 10px;
  min-width: 440px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity var(--dur-base) var(--ease-standard),
              transform var(--dur-base) var(--ease-standard),
              visibility 0s linear var(--dur-base);
  z-index: var(--z-menu);
}
.stiz-nav-item-wrap:hover .stiz-mega,
.stiz-nav-item-wrap:focus-within .stiz-mega {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  transition-delay: 0s;
}
.stiz-mega-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
}
.stiz-mega-title {
  font-size: 11px;
  font-weight: var(--fw-bold);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin: 0 0 12px;
}
.stiz-mega-link {
  display: block;
  font-size: 15px;
  color: var(--gray-800);
  text-decoration: none;
  padding: 7px 0;
  font-weight: var(--fw-medium);
  transition: color var(--dur-fast) var(--ease-standard),
              transform var(--dur-fast) var(--ease-standard);
}
.stiz-mega-link:hover { color: var(--accent); transform: translateX(2px); }
.stiz-mega-foot {
  display: flex;
  gap: 22px;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}
.stiz-mega-foot-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 13px;
  font-weight: var(--fw-bold);
  color: var(--stiz-black);
  text-decoration: none;
}
.stiz-mega-foot-link[data-accent="true"] { color: var(--accent); }
.stiz-mega-foot-link .material-symbols-outlined { font-size: 16px; }
.stiz-mega-foot-link:hover { text-decoration: underline; }

/* 우측 유틸 아이콘들 */
.stiz-header-utils {
  display: flex;
  align-items: center;
  gap: 2px;
}
.stiz-header-utils .stiz-icon-btn {
  color: var(--stiz-black);
  width: 44px;
  height: 44px;
}
body.page-main .stiz-header:not(.is-scrolled) .stiz-header-utils .stiz-icon-btn { color: var(--stiz-white); }

/* 장바구니 뱃지 */
.stiz-cart-badge {
  position: absolute;
  top: 4px;
  right: 4px;
  min-width: 17px;
  height: 17px;
  padding: 0 4px;
  background: var(--stiz-red-600);
  color: var(--stiz-white);
  font-size: 10px;
  font-weight: var(--fw-bold);
  border-radius: var(--radius-full);
  display: none;
  align-items: center;
  justify-content: center;
  line-height: 1;
  pointer-events: none;
}
.stiz-cart-badge.has-items { display: flex; }
.stiz-cart-btn { position: relative; }

/* 모바일 메뉴 버튼 — 데스크탑에서 숨김 */
.stiz-mobile-menu-btn { display: none; }

@media (max-width: 960px) {
  .stiz-nav-desktop { display: none; }
  .stiz-mobile-menu-btn { display: inline-flex; }
  .stiz-header-inner { height: 64px; }
}


/* ══════════════════════════════════════════════════════════
   2. Search Overlay — .stiz-search-overlay
   ══════════════════════════════════════════════════════════ */
.stiz-search-overlay {
  position: fixed;
  inset: 0;
  z-index: 150;
  background: rgba(17, 17, 17, 0.55);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 12vh 20px 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--dur-base) var(--ease-standard),
              visibility 0s linear var(--dur-base);
}
.stiz-search-overlay.is-open {
  opacity: 1;
  visibility: visible;
  transition-delay: 0s;
}
.stiz-search-box {
  background: var(--surface);
  width: 100%;
  max-width: 640px;
  border-radius: 12px;
  padding: 28px;
  box-shadow: var(--shadow-xl);
  transform: translateY(-16px);
  transition: transform var(--dur-base) var(--ease-out);
}
.stiz-search-overlay.is-open .stiz-search-box { transform: translateY(0); }
.stiz-search-header {
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 2px solid var(--stiz-black);
  padding-bottom: 12px;
}
.stiz-search-header .material-symbols-outlined { font-size: 28px; }
.stiz-search-input {
  flex: 1;
  border: none;
  outline: none;
  font-size: 22px;
  font-family: var(--font-sans);
  color: var(--text-primary);
  background: transparent;
}
.stiz-search-input::placeholder { color: var(--text-muted); }
.stiz-search-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}
.stiz-search-chip {
  background: var(--surface-sunken);
  border: none;
  border-radius: var(--radius-full);
  padding: 8px 14px;
  font-size: 13px;
  cursor: pointer;
  color: var(--text-secondary);
  font-family: var(--font-sans);
  transition: background-color var(--dur-fast) var(--ease-standard),
              color var(--dur-fast) var(--ease-standard);
}
.stiz-search-chip:hover { background: var(--stiz-black); color: var(--stiz-white); }
.stiz-search-results {
  margin-top: 16px;
  max-height: 320px;
  overflow-y: auto;
}
.stiz-search-full-link {
  display: block;
  text-align: center;
  margin-top: 12px;
  padding: 12px;
  background: var(--stiz-black);
  color: var(--stiz-white);
  font-size: 14px;
  font-weight: var(--fw-bold);
  text-decoration: none;
  border-radius: var(--radius-card);
}
.stiz-search-full-link:hover { background: var(--gray-800); }


/* ══════════════════════════════════════════════════════════
   3. Mobile Drawer — .stiz-drawer
   ══════════════════════════════════════════════════════════ */
.stiz-drawer-overlay {
  position: fixed;
  inset: 0;
  z-index: 150;
  background: rgba(17, 17, 17, 0.4);
  display: flex;
  justify-content: flex-end;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--dur-base) var(--ease-standard),
              visibility 0s linear var(--dur-base);
}
.stiz-drawer-overlay.is-open {
  opacity: 1;
  visibility: visible;
  transition-delay: 0s;
}
.stiz-drawer {
  width: 300px;
  max-width: 84vw;
  height: 100%;
  background: var(--surface);
  padding: 24px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform var(--dur-base) var(--ease-out);
}
.stiz-drawer-overlay.is-open .stiz-drawer { transform: translateX(0); }
.stiz-drawer-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}
.stiz-drawer-brand {
  font-weight: var(--fw-black);
  font-size: 22px;
  letter-spacing: var(--ls-tighter);
}
.stiz-drawer-link {
  padding: 14px 0;
  font-size: 16px;
  font-weight: var(--fw-bold);
  color: var(--stiz-black);
  text-decoration: none;
  border-bottom: 1px solid var(--border);
}
.stiz-drawer-link[data-accent="true"] { color: var(--accent); }
.stiz-drawer-sub {
  padding: 9px 0 9px 14px;
  font-size: 14px;
  color: var(--gray-600);
  text-decoration: none;
}
.stiz-drawer-sub:hover { color: var(--stiz-black); }


/* ══════════════════════════════════════════════════════════
   4. Footer — .stiz-footer
   ══════════════════════════════════════════════════════════ */
.stiz-footer {
  background: var(--surface-dark);
  color: var(--stiz-white);
  padding: 56px 0 32px;
  margin-top: 0;
}
.stiz-footer-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}
.stiz-footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.3fr;
  gap: 40px;
}
@media (max-width: 960px) {
  .stiz-footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}
@media (max-width: 640px) {
  .stiz-footer-grid { grid-template-columns: 1fr; gap: 28px; }
}
.stiz-footer-brand {
  font-size: 24px;
  font-weight: var(--fw-black);
  letter-spacing: var(--ls-tighter);
  margin-bottom: 14px;
  color: var(--stiz-white);
}
.stiz-footer-tagline {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
  line-height: var(--lh-relaxed);
  margin: 0;
}
.stiz-footer-social {
  display: flex;
  gap: 14px;
  margin-top: 18px;
}
.stiz-footer-social a {
  color: #999;
  text-decoration: none;
  font-size: 22px;
  transition: color var(--dur-fast) var(--ease-standard);
}
.stiz-footer-social a:hover { color: var(--stiz-white); }
.stiz-footer-h4 {
  font-size: 13px;
  font-weight: var(--fw-bold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin: 0 0 16px;
  color: var(--stiz-white);
}
.stiz-footer-link {
  display: block;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.65);
  text-decoration: none;
  padding: 5px 0;
  transition: color var(--dur-fast) var(--ease-standard);
}
.stiz-footer-link:hover { color: var(--stiz-white); }
.stiz-footer-newsletter-form {
  display: flex;
}
.stiz-footer-newsletter-input {
  flex: 1;
  min-width: 0;
  background: #222;
  border: none;
  color: var(--stiz-white);
  padding: 10px 12px;
  font-size: 13px;
  outline: none;
  font-family: var(--font-sans);
}
.stiz-footer-newsletter-input::placeholder { color: #888; }
.stiz-footer-newsletter-btn {
  background: var(--stiz-white);
  color: var(--stiz-black);
  border: none;
  padding: 0 16px;
  font-weight: var(--fw-bold);
  font-size: 13px;
  cursor: pointer;
  font-family: var(--font-sans);
}
.stiz-footer-newsletter-btn:hover { background: var(--gray-100); }
.stiz-footer-legal {
  border-top: 1px solid var(--border-dark);
  margin-top: 40px;
  padding-top: 24px;
  font-size: 12px;
  color: #888;
  line-height: var(--lh-relaxed);
}
.stiz-footer-legal p { margin: 0; }
.stiz-footer-legal p + p { margin-top: 4px; }
.stiz-footer-legal-brand {
  color: #bbb !important;
  font-weight: var(--fw-semibold);
  margin: 0 0 6px !important;
}
.stiz-footer-legal-links {
  margin-top: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
}
.stiz-footer-legal-links a {
  color: #aaa;
  text-decoration: none;
  font-size: 12px;
  transition: color var(--dur-fast) var(--ease-standard);
}
.stiz-footer-legal-links a:hover { color: var(--stiz-white); }