/* FO(사용자 화면) 반응형 레이아웃 — 시각 토큰은 디자인 시스템에서 상속 */
html { scrollbar-gutter: stable; }
body.fo-body { background: var(--surface-page); min-height: 100vh; }
.fo-page { min-height: 100vh; display: flex; flex-direction: column; }
main.fo-main { flex: 1; width: 100%; padding-bottom: 40px; }

.fo-container { width: 100%; max-width: 1120px; margin: 0 auto; padding: 0 16px; }
.fo-container.mid { max-width: 768px; }
.fo-container.narrow { max-width: 480px; }

/* ---------- 상단 헤더 ---------- */
.fo-header { position: sticky; top: 0; z-index: 40; background: rgba(255, 255, 255, 0.9); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border-bottom: 1px solid var(--border-default); }
.fo-header-in { position: relative; max-width: 1120px; margin: 0 auto; height: 56px; display: flex; align-items: center; gap: 6px; padding: 0 10px; }
@media (min-width: 768px) { .fo-header-in { padding: 0 16px; gap: 14px; } }
a.fo-wordmark { display: inline-flex; align-items: center; gap: 8px; font-size: 16.5px; font-weight: 600; letter-spacing: -0.4px; color: var(--color-onyx); white-space: nowrap; padding: 0 6px; }
a.fo-wordmark:hover { text-decoration: none; color: var(--color-onyx); }
/* 좌측 [뒤로][홈] · 우측 [검색][메뉴] 아이콘 클러스터와 겹치지 않도록 여백 */
.fo-header-title { position: absolute; left: 0; right: 0; text-align: center; font-size: 16px; font-weight: 600; letter-spacing: -0.3px; pointer-events: none; padding: 0 108px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
@media (min-width: 768px) { .fo-header-title { display: none; } }
.fo-nav { display: none; }
@media (min-width: 768px) { .fo-nav { display: flex; align-items: center; gap: 2px; } }
.fo-nav a { font-size: 14px; font-weight: 500; color: var(--text-secondary); padding: 7px 12px; border-radius: 8px; }
.fo-nav a:hover { color: var(--color-ink); background: rgba(0, 0, 0, 0.04); text-decoration: none; }
.fo-nav a.on { color: var(--color-ink); font-weight: 600; }
.fo-header-search { display: none; }
@media (min-width: 768px) { .fo-header-search { display: block; width: 300px; margin-left: auto; } }
.fo-header-icons { display: flex; align-items: center; gap: 2px; margin-left: auto; }
@media (min-width: 768px) { .fo-header-icons { margin-left: 0; } }

/* ---------- 모바일 GNB 드로어 (≤767px) ----------
   body 포털로 렌더 — 헤더 backdrop-filter가 fixed 포함블록을 만드는 문제 회피 */
.fo-header.fo-header-menu-open { z-index: 90; }
.fo-mnav-toggle { position: relative; z-index: 1; }
.fo-mnav-root {
  position: fixed; inset: 0; z-index: 80;
  pointer-events: none; visibility: hidden;
}
.fo-mnav-root.open { pointer-events: auto; visibility: visible; }
.fo-mnav-scrim {
  position: absolute; inset: 0;
  background: rgba(0, 0, 0, 0.45);
  opacity: 0;
  transition: opacity 200ms ease;
}
.fo-mnav-root.open .fo-mnav-scrim { opacity: 1; }
.fo-mnav {
  position: absolute; top: 56px; right: 0; bottom: 0;
  width: min(320px, 88vw);
  background: #fff;
  background: var(--surface-card, #fff);
  border-left: 1px solid var(--border-default);
  box-shadow: var(--shadow-xl);
  display: flex; flex-direction: column;
  transform: translateX(100%);
  transition: transform 220ms ease;
  padding: 8px 0 calc(20px + env(safe-area-inset-bottom));
  overflow: hidden;
}
.fo-mnav-root.open .fo-mnav { transform: translateX(0); }
.fo-mnav-links {
  display: flex; flex-direction: column; gap: 4px;
  padding: 12px 12px 8px; flex: 1; overflow-y: auto; min-height: 0;
  -webkit-overflow-scrolling: touch;
}
.fo-mnav-links a {
  display: block; font-size: 16px; font-weight: 500;
  color: var(--text-primary, #111);
  padding: 14px 16px; border-radius: 10px; letter-spacing: -0.3px;
  line-height: 1.35;
}
.fo-mnav-links a:hover { color: var(--color-ink); background: rgba(0, 0, 0, 0.04); text-decoration: none; }
.fo-mnav-links a.on { color: var(--color-ink); font-weight: 600; background: rgba(0, 0, 0, 0.05); }
.fo-mnav-auth {
  flex: none; display: flex; flex-direction: column; gap: 8px;
  padding: 16px 16px 8px; border-top: 1px solid var(--border-default);
  background: var(--surface-card, #fff);
}
.fo-mnav-user {
  font-size: 13.5px; font-weight: 500;
  color: var(--text-secondary); padding: 0 2px 6px;
}
@media (min-width: 768px) {
  .fo-mnav-root { display: none !important; }
}

/* ---------- 반응형 표시 헬퍼 ---------- */
@media (max-width: 767px) { .fo-desktop { display: none !important; } }
@media (min-width: 768px) { .fo-mobile { display: none !important; } }

/* ---------- 하단 탭바 (모바일) ---------- */
.fo-tabbar { position: fixed; left: 0; right: 0; bottom: 0; z-index: 45; display: flex; background: var(--surface-card); border-top: 1px solid var(--border-default); padding-bottom: env(safe-area-inset-bottom); }
@media (min-width: 768px) { .fo-tabbar { display: none; } }
a.fo-tab { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 3px; padding: 9px 0 7px; font-size: 10px; font-weight: 500; letter-spacing: -0.2px; color: var(--color-icon); }
a.fo-tab:hover { text-decoration: none; color: var(--color-icon); }
a.fo-tab.on { color: var(--color-ink); font-weight: 600; }
body.has-tabbar main.fo-main { padding-bottom: 96px; }
@media (min-width: 768px) { body.has-tabbar main.fo-main { padding-bottom: 40px; } }

/* ---------- 하단 고정 CTA (모바일) ---------- */
.fo-ctabar { position: fixed; left: 0; right: 0; bottom: 0; z-index: 46; display: flex; gap: 10px; align-items: center; background: var(--surface-card); border-top: 1px solid var(--border-default); padding: 12px 16px calc(12px + env(safe-area-inset-bottom)); }
.fo-ctabar.above-tabbar { bottom: calc(53px + env(safe-area-inset-bottom)); padding-bottom: 12px; }
@media (min-width: 768px) { .fo-ctabar { display: none; } }
body.has-cta main.fo-main { padding-bottom: 108px; }
body.has-cta.has-tabbar main.fo-main { padding-bottom: 164px; }
@media (min-width: 768px) { body.has-cta main.fo-main, body.has-cta.has-tabbar main.fo-main { padding-bottom: 40px; } }

/* ---------- 그리드 ---------- */
.fo-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
@media (min-width: 640px) { .fo-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; } }
@media (min-width: 960px) { .fo-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; } }
.fo-list-layout .fo-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media (min-width: 640px) { .fo-list-layout .fo-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (min-width: 1080px) { .fo-list-layout .fo-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); } }

/* 상세/장바구니형 2단 */
.fo-two { display: grid; grid-template-columns: minmax(0, 1fr); gap: 20px; align-items: start; }
@media (min-width: 900px) { .fo-two { grid-template-columns: minmax(0, 1fr) 380px; gap: 28px; } .fo-side-sticky { position: sticky; top: 76px; } }

/* YouTube 인페이지 플레이어 (FO-03) — plain iframe, no overlay */
.fo-yt {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  min-height: 180px;
  background: #0f0f0f;
  border-radius: var(--radius-cards);
  overflow: hidden;
}
.fo-yt iframe {
  display: block;
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
  z-index: 1;
}
.fo-yt-fallback {
  display: flex;
  align-items: center;
  justify-content: center;
}
.fo-yt-fallback-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.fo-yt-fallback-scrim {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(15, 15, 15, 0.25) 0%, rgba(15, 15, 15, 0.72) 100%);
  z-index: 1;
}
.fo-yt-open {
  position: relative;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 9999px;
  background: #fff;
  color: #0f0f0f;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.2px;
  text-decoration: none;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}
.fo-yt-open:hover { background: #f2f2f2; }
.fo-yt-open:focus-visible {
  outline: 2px solid var(--color-brand, #c45c26);
  outline-offset: 3px;
}

/* 목록: 좌측 필터 — minmax(0,…) 로 칩 가로 스크롤이 페이지를 밀어내지 않게 */
.fo-list-layout { display: grid; grid-template-columns: minmax(0, 1fr); gap: 8px; align-items: start; }
.fo-list-layout > * { min-width: 0; }
@media (min-width: 960px) { .fo-list-layout { grid-template-columns: 212px minmax(0, 1fr); gap: 28px; } }
.fo-filters { display: none; }
@media (min-width: 960px) { .fo-filters { display: block; position: sticky; top: 76px; } }
.fo-list-main { min-width: 0; max-width: 100%; }
.fo-mobile-filters { min-width: 0; max-width: 100%; }
@media (min-width: 960px) { .fo-mobile-filters { display: none; } }

/* 목록 상단: 건수 + 정렬 */
.fo-list-toolbar {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 14px 0 12px; min-width: 0;
}
.fo-list-toolbar-meta {
  flex: 1; min-width: 0; font-size: 13px; color: var(--text-secondary);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.fo-list-toolbar-sort { width: 128px; flex: none; max-width: 42%; }

/* ---------- 가로 스크롤 ---------- */
.fo-chips { display: flex; gap: 8px; overflow-x: auto; max-width: 100%; scrollbar-width: none; -webkit-overflow-scrolling: touch; }
.fo-chips > * { flex-shrink: 0; }
.fo-chips::-webkit-scrollbar { display: none; }
.fo-hscroll { display: flex; gap: 12px; overflow-x: auto; scrollbar-width: none; padding-bottom: 4px; }
.fo-hscroll::-webkit-scrollbar { display: none; }

/* ---------- 푸터 ---------- */
.fo-footer { border-top: 1px solid var(--border-default); margin-top: 56px; background: var(--surface-card); }
.fo-footer-in { max-width: 1120px; margin: 0 auto; padding: 28px 16px 32px; display: flex; flex-direction: column; gap: 20px; }
.fo-footer-top { display: flex; flex-direction: column; gap: 12px; }
@media (min-width: 768px) { .fo-footer-top { flex-direction: row; align-items: center; justify-content: space-between; } }
.fo-footer-links { display: flex; flex-wrap: wrap; gap: 6px 18px; }
.fo-footer a { color: var(--text-secondary); font-size: 12.5px; }
.fo-footer a:hover { color: var(--color-ink); }
.fo-footer-grid { display: grid; grid-template-columns: 1fr; gap: 22px; padding-top: 20px; border-top: 1px solid var(--border-default); }
@media (min-width: 768px) { .fo-footer-grid { grid-template-columns: 1.25fr 1fr 1fr; gap: 28px; } }
.fo-footer-bottom { display: flex; flex-direction: column; gap: 10px; padding-top: 18px; border-top: 1px solid var(--border-default); }
@media (min-width: 768px) { .fo-footer-bottom { flex-direction: row; align-items: center; justify-content: space-between; } }

/* ---------- 토스트 ---------- */
.fo-toast { position: fixed; left: 50%; bottom: 96px; transform: translate(-50%, 12px); background: var(--color-ink); color: var(--color-paper-white); font-size: 13.5px; font-weight: 500; letter-spacing: -0.2px; padding: 11px 18px; border-radius: 9999px; box-shadow: var(--shadow-xl); opacity: 0; pointer-events: none; transition: opacity 140ms ease, transform 140ms ease; z-index: 70; max-width: calc(100vw - 48px); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.fo-toast.show { opacity: 1; transform: translate(-50%, 0); }
@media (min-width: 768px) { .fo-toast { bottom: 36px; } }

/* ---------- 다이얼로그 (모바일 바텀시트 / 데스크톱 센터) ---------- */
.fo-scrim { position: fixed; inset: 0; background: rgba(0, 0, 0, 0.4); z-index: 60; display: flex; align-items: flex-end; justify-content: center; }
@media (min-width: 640px) { .fo-scrim { align-items: center; padding: 24px; } }
.fo-dialog {
  background: var(--surface-card);
  width: 100%;
  max-height: min(92vh, 100%);
  border-radius: 16px 16px 0 0;
  padding: 20px 20px calc(20px + env(safe-area-inset-bottom));
  box-shadow: var(--shadow-xl);
  display: flex;
  flex-direction: column;
  min-height: 0;
}
.fo-dialog-body { overflow-y: auto; -webkit-overflow-scrolling: touch; flex: 1; min-height: 0; }
@media (min-width: 640px) {
  .fo-dialog { max-width: 400px; border-radius: 12px; padding: 24px; }
  .fo-dialog.fo-dialog-wide { max-width: 560px; }
}

/* ---------- 기타 ---------- */
.fo-caption { font-size: 12px; color: var(--text-secondary); line-height: 1.55; }
.fo-hr { height: 1px; background: var(--border-default); border: 0; margin: 0; }
.fo-kv { display: flex; justify-content: space-between; align-items: center; font-size: 14px; gap: 12px; }
input, select, textarea, button { font-family: inherit; }

/* ---------- 홈 배너 (BO-08) — 관리자 등록 이미지 전폭 ----------
   레이아웃: fo-container 전폭 · 단일 이미지
   높이: 220px (모바일 176px)
   CSS 표시: PC ~1088×220 / Mobile ~360×176
   권장 업로드(레티나): PC 2240×440 / Mobile 1500×704 — 1×만 올리면 업스케일로 흐릿해짐 */
.fo-home-banners {
  margin: 24px 0 0;
  position: relative;
}
.fo-home-banner {
  position: relative;
  width: 100%;
  height: 220px;
  border-radius: var(--radius-cards, 12px);
  overflow: hidden;
  border: 1px solid var(--border-default);
  background: var(--surface-sunken, #f4f4f4);
  touch-action: pan-y;
  user-select: none;
  -webkit-user-select: none;
}
.fo-home-banners.is-dragging .fo-home-banner {
  cursor: grabbing;
}
.fo-home-banner-track {
  display: flex;
  height: 100%;
  width: 100%;
  will-change: transform;
  backface-visibility: hidden;
}
.fo-home-banner-track.is-animating {
  transition: transform 320ms cubic-bezier(0.22, 1, 0.36, 1);
}
.fo-home-banner-slide {
  position: relative;
  flex: 0 0 100%;
  width: 100%;
  height: 100%;
  overflow: hidden;
}
.fo-home-banner-slide.is-link { cursor: pointer; }
@media (pointer: coarse) {
  .fo-home-banner-slide { cursor: grab; }
  .fo-home-banners.is-dragging .fo-home-banner-slide,
  .fo-home-banners.is-dragging .fo-home-banner-slide.is-link {
    cursor: grabbing;
  }
}
.fo-home-banner-slide.is-link:hover { opacity: 0.98; }
.fo-home-banners.is-dragging .fo-home-banner-slide.is-link:hover { opacity: 1; }
.fo-home-banner-slide picture {
  display: block;
  width: 100%;
  height: 100%;
  pointer-events: none;
}
.fo-home-banner-img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  image-rendering: auto;
  -ms-interpolation-mode: bicubic;
  background: #eee;
  pointer-events: none;
  -webkit-user-drag: none;
}
.fo-home-banner-fallback {
  position: absolute;
  inset: 0;
  padding: 22px 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  justify-content: center;
  pointer-events: none;
}
.fo-home-banner-fallback strong {
  font-size: clamp(18px, 2.4vw, 22px);
  letter-spacing: -0.5px;
  font-weight: 600;
}
.fo-home-banner-nav {
  position: absolute;
  top: 50%;
  z-index: 2;
  transform: translateY(-50%);
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  padding: 0;
  border-radius: 9999px;
  background: rgba(255, 255, 255, 0.88);
  color: var(--color-ink, #111);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.14);
  cursor: pointer;
  opacity: 0;
  transition: opacity 160ms ease, background 140ms ease;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}
/* Hover: show both. Keyboard (:focus-visible): show both.
   Do not use :focus-within — mouse click leaves focus and sticks arrows visible. */
.fo-home-banners:hover .fo-home-banner-nav,
.fo-home-banners:has(.fo-home-banner-nav:focus-visible) .fo-home-banner-nav {
  opacity: 1;
}
.fo-home-banner-nav:hover {
  background: #fff;
}
.fo-home-banner-nav:focus-visible {
  outline: 2px solid var(--color-brand, #c45c26);
  outline-offset: 2px;
}
.fo-home-banner-nav-prev { left: 10px; }
.fo-home-banner-nav-next { right: 10px; }
.fo-home-banner-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2;
  height: 3px;
  background: rgba(0, 0, 0, 0.12);
  pointer-events: none;
}
.fo-home-banner-progress-fill {
  height: 100%;
  width: 0;
  background: var(--color-ink, #111);
  transform-origin: left center;
  animation-name: fo-banner-progress;
  animation-timing-function: linear;
  animation-fill-mode: forwards;
}
.fo-home-banners.is-paused .fo-home-banner-progress-fill {
  animation-play-state: paused;
}
@keyframes fo-banner-progress {
  from { width: 0%; }
  to { width: 100%; }
}
@media (max-width: 767px) {
  .fo-home-banner { height: 176px; }
  /* Mobile: finger-follow swipe — hide arrows */
  .fo-home-banner-nav { display: none; }
  .fo-home-banner-progress { height: 2.5px; }
  .fo-home-banner-slide,
  .fo-home-banner-slide.is-link { cursor: default; }
}