/* ============================================================
   el_unified — 카탈로그 메커니즘 (el_imweb에서 스킨만 교체해 이식)
   출처: static/el_imweb/imweb.css(탭바·섹션·카드) + price.css(FAQ 아코디언)
   구조·동작은 그대로, 색만 --un-*(eondui 브리지) 참조로 교체.
   ============================================================ */

/* ── 이중 내비 2층 — 스티키 콘텐츠 탭바 (헤더 아래 고정) ── */
.un-tabbar {
  position: sticky; top: var(--un-header-h); z-index: 40;
  background: color-mix(in srgb, var(--e-white) 88%, transparent);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--un-border);
}
.un-tabs {
  display: flex; align-items: center; padding: 10px 0; gap: 0;
  overflow-x: auto; scrollbar-width: none; -ms-overflow-style: none;
}
.un-tabs::-webkit-scrollbar { display: none; }
.un-tab {
  display: inline-flex; align-items: center; justify-content: center; height: 40px; padding: 0 16px;
  border-radius: var(--un-r-full); font-size: 15px; font-weight: 600; background: transparent; border: 0;
  color: var(--un-ink-2); margin-right: 4px; white-space: nowrap; flex: 0 0 auto;
  transition: background-color var(--e-dur-fast) var(--e-ease), color var(--e-dur-fast) var(--e-ease);
}
.un-tab:hover { background: var(--un-bg-gray); }
.un-tab.is-active { background: var(--un-black); color: var(--e-on-accent); }
.un-tab.is-active:hover { background: var(--un-black); }

/* 용도 칩(2차 필터) — el_hub 계보 */
.un-chips { display: flex; flex-wrap: wrap; gap: var(--e-sp-2); padding-bottom: 10px; }
.un-chip {
  display: inline-flex; align-items: center; height: 28px; padding: 0 var(--e-sp-3);
  border-radius: var(--un-r-full); border: 1px solid var(--un-border-2);
  background: transparent; color: var(--un-ink-2); font-size: 13px;
  transition: background-color var(--e-dur-fast) var(--e-ease), color var(--e-dur-fast) var(--e-ease);
}
.un-chip:hover { border-color: var(--un-border-h); }
.un-chip.is-active { background: var(--e-accent); color: var(--e-on-accent); border-color: var(--e-accent); }

/* ── 카테고리 섹션 ── */
.un-section { border-top: 1px solid var(--un-border); padding: 48px 0 96px; }
.un-section.un-section--first { border-top: 0; }
.un-section-title { font-size: 20px; line-height: 28px; font-weight: 700; color: var(--un-ink); margin-bottom: 24px; }

/* ── 카드 그리드 ── */
.un-grid { display: grid; grid-template-columns: repeat(4, 1fr); column-gap: 24px; row-gap: 56px; }
@media (max-width: 1100px) { .un-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 840px) { .un-grid { grid-template-columns: repeat(2, 1fr); column-gap: 16px; row-gap: 40px; } }

.un-card { display: block; }
.un-card-thumb {
  position: relative; aspect-ratio: 4 / 3; border: 1px solid var(--un-border); border-radius: var(--un-r-lg);
  overflow: hidden; background: var(--e-white); transition: border-color var(--e-dur-fast) var(--e-ease),
  transform var(--e-dur) var(--e-ease), box-shadow var(--e-dur) var(--e-ease);
}
.un-card:hover .un-card-thumb { border-color: var(--un-border-h); transform: translateY(-2px); box-shadow: var(--e-shadow-md); }
.un-card-name { margin-top: 16px; font-size: 17px; line-height: 26px; font-weight: 700; color: var(--un-ink); text-align: left; }
.un-card-desc { margin-top: 4px; font-size: 13px; color: var(--un-muted); }
.un-card-price { margin-top: 6px; font-size: 13px; font-variant-numeric: tabular-nums; color: var(--un-ink); }
.un-card-badge {
  display: inline-block; font-size: 11px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase;
  padding: 2px 8px; border-radius: var(--un-r-full); background: var(--e-accent-soft); color: var(--e-accent-strong);
}

/* 카드 빈 상태 */
.un-empty { display: none; grid-column: 1 / -1; text-align: center; padding: var(--e-sp-16) var(--e-sp-4); font-size: 14px; color: var(--un-muted); }
.un-empty.is-shown { display: block; }
.un-card.is-hidden { display: none; }
.un-card.is-entering { animation: un-card-in .4s var(--e-ease-out) both; }
@keyframes un-card-in { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) { .un-card, .un-card-thumb { transition: none; } .un-card.is-entering { animation: none; } }

/* ── FAQ 아코디언 (el_imweb price.css 이식) ── */
.un-faq-list { display: flex; flex-direction: column; gap: 12px; }
.un-faq-item { background: var(--un-bg-gray); border-radius: var(--un-r-lg); overflow: hidden; }
.un-faq-q {
  width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 20px 24px; background: none; border: 0; text-align: left; font-size: 15px; font-weight: 600; color: var(--un-ink);
}
.un-faq-q svg { width: 18px; height: 18px; color: var(--un-muted); flex: 0 0 auto; transition: transform var(--e-dur) var(--e-ease); }
.un-faq-item.is-open .un-faq-q svg { transform: rotate(180deg); }
.un-faq-a { max-height: 0; opacity: 0; overflow: hidden; transition: max-height var(--e-dur) var(--e-ease), opacity var(--e-dur-fast) var(--e-ease); }
.un-faq-item.is-open .un-faq-a { max-height: 300px; opacity: 1; }
.un-faq-a p { padding: 0 24px 22px; font-size: 14px; line-height: 1.7; color: var(--un-ink-2); }