/* ============================================
   FAQ 페이지 전용 스타일
   - common.css 디자인 토큰(:root 변수)만 사용해 사이트와 톤 일치
   - 다크블루 검색 히어로 + 카테고리 칩 필터 + 카드 리스트
   ============================================ */

.faq-page {
  background-color: var(--surface-neutral-2);
}

.faq-page [hidden] {
  display: none !important;
}

/* ---------- Hero (검색) ---------- */
.faq-hero {
  position: relative;
  padding-top: calc(var(--header-height) + clamp(40px, 6vw, 76px));
  padding-bottom: clamp(48px, 7vw, 88px);
  padding-left: var(--gutter-x);
  padding-right: var(--gutter-x);
  /* 헤더(다크블루 반투명)와 자연스럽게 이어지는 네이비 그라데이션 */
  background: radial-gradient(120% 150% at 50% 0%,
    var(--surface-dark-blue-1) 0%,
    var(--surface-dark-blue-2) 48%,
    var(--surface-dark-blue-3) 100%);
  text-align: center;
  overflow: hidden;
}

.faq-hero__inner {
  position: relative;
  z-index: 1;
  max-width: 760px;
  margin: 0 auto;
}

.faq-hero__title {
  margin: 0;
  font-family: var(--font-pretendard);
  color: var(--surface-white);
  font-size: clamp(26px, 4vw, 40px);
  font-weight: 700;
  letter-spacing: var(--tracking-tight);
}

.faq-hero__desc {
  margin: 14px 0 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: clamp(14px, 1.6vw, 17px);
  line-height: 1.6;
}

.faq-hero__search {
  position: relative;
  display: flex;
  align-items: center;
  max-width: 620px;
  margin: clamp(28px, 4vw, 40px) auto 0;
  background: var(--surface-white);
  border-radius: 14px;
  box-shadow: 0 12px 34px rgba(0, 0, 0, 0.22);
}

.faq-hero__search-icon {
  position: absolute;
  left: 20px;
  color: var(--surface-neutral-5);
  pointer-events: none;
}

.faq-hero__search-input {
  width: 100%;
  border: 0;
  outline: none;
  background: transparent;
  font-family: var(--font-pretendard);
  font-size: 16px;
  color: var(--surface-dark-blue-2);
  padding: 18px 22px 18px 54px;
  border-radius: 14px;
}

.faq-hero__search-input::placeholder { color: var(--surface-neutral-5); }
.faq-hero__search-input::-webkit-search-cancel-button { cursor: pointer; }
.faq-hero__search-input:focus-visible { box-shadow: 0 0 0 3px var(--surface-primary-2); }

/* 하단 액센트 라인 (참고 이미지의 주황 라인 → 브랜드 시안~퍼플 그라데이션) */
.faq-hero__accent {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--surface-primary) 0%, var(--surface-secondary) 100%);
}

/* ---------- 본문 ---------- */
.faq-body {
  padding: clamp(32px, 5vw, 56px) 0 clamp(64px, 9vw, 120px);
}

/* 필터 영역 (제품 행 + 카테고리 행, 2단) */
.faq-filters {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: clamp(18px, 2.6vw, 28px);
}

.faq-filter-group {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.faq-filter-label {
  flex: 0 0 auto;
  min-width: 52px;
  padding-top: 9px;
  font-size: 13px;
  font-weight: 600;
  color: var(--surface-neutral-5);
  white-space: nowrap;
}

.faq-filter-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

#faqProducts {
  gap: 12px;
}

#faqCategories {
  gap: 8px;
}

.faq-chip {
  appearance: none;
  -webkit-appearance: none;
  border: 1px solid var(--surface-neutral-3);
  background: var(--surface-white);
  color: var(--surface-dark-blue-2);
  font-family: var(--font-pretendard);
  font-size: 14px;
  font-weight: 500;
  line-height: 1;
  padding: 10px 16px;
  border-radius: 999px;
  cursor: pointer;
  transition: color 0.18s ease, background-color 0.18s ease, border-color 0.18s ease;
  white-space: nowrap;
}
.faq-chip:hover { border-color: var(--surface-primary); color: var(--surface-primary); }
.faq-chip.is-active {
  background: var(--surface-primary);
  border-color: var(--surface-primary);
  color: var(--surface-white);
}
.faq-chip:focus-visible { outline: 2px solid var(--surface-primary); outline-offset: 2px; }

.faq-chip--product {
  padding: 11px 18px;
  font-weight: 700;
  box-shadow: 0 2px 8px rgba(14, 20, 27, 0.04);
}

#faqCategories .faq-chip {
  padding: 8px 13px;
  border-radius: 8px;
  border-color: #D6E0E8;
  background: #F7FAFC;
  color: #52606D;
  font-size: 13px;
  font-weight: 500;
}

#faqCategories .faq-chip:hover {
  border-color: rgba(2, 179, 207, 0.45);
  background: rgba(2, 179, 207, 0.06);
  color: #02B3CF;
}

#faqCategories .faq-chip.is-active {
  border-color: rgba(2, 179, 207, 0.5);
  background: rgba(2, 179, 207, 0.12);
  color: #02B3CF;
  box-shadow: inset 0 0 0 1px rgba(2, 179, 207, 0.12);
}

/* 결과 카운트 */
.faq-count {
  margin: 0 0 16px;
  font-size: 14px;
  color: var(--surface-neutral-5);
}

/* 카드 리스트 (2열 → 모바일 1열) */
.faq-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  align-items: start;
}

.faq-card {
  background: var(--surface-white);
  border: 1px solid #e7edf2;
  border-radius: 16px;
  padding: 22px 24px;
  box-shadow: var(--drop-shadow-1);
  transition: box-shadow 0.18s ease, transform 0.18s ease, border-color 0.18s ease;
}
.faq-card:hover {
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.08);
  border-color: var(--surface-primary-2);
  transform: translateY(-2px);
}

/* 카드 상단: 카테고리 뱃지(좌) + 제품명(우) */
.faq-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 12px;
}

.faq-card__badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--surface-primary);
  background: rgba(2, 179, 207, 0.12);
  border-radius: 6px;
  padding: 4px 10px;
}

/* 우상단 제품명 (대장 지정: #02B3CF, 12px) */
.faq-card__product {
  flex: 0 0 auto;
  font-size: 12px;
  font-weight: 600;
  color: #02B3CF;
  white-space: nowrap;
  text-align: right;
}

.faq-card__question {
  margin: 0;
  font-family: var(--font-pretendard);
  font-size: 17px;
  font-weight: 700;
  color: var(--surface-dark-blue-2);
  line-height: 1.45;
}

.faq-card__divider {
  height: 1px;
  margin: 14px 0;
  border: 0;
  background: #eef2f5;
}

.faq-card__answer {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: #4a5560;
  white-space: pre-line;
}

/* 답변 내 출처 표기: 한 줄 띄우고 작게(12px) */
.faq-card__source {
  display: block;
  margin-top: 1.2em;
  font-size: 12px;
  line-height: 1.6;
  color: var(--surface-neutral-5);
  white-space: pre-line;
}

/* 검색어 하이라이트 */
.faq-card mark {
  background: var(--surface-primary-2);
  color: inherit;
  border-radius: 3px;
  padding: 0 1px;
}

/* 답변 내 URL 링크 */
.faq-card__link {
  color: var(--surface-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
  word-break: break-all;
}
.faq-card__link:hover { color: var(--button-primary-pressed); }

/* 더보기 버튼 */
.faq-more {
  display: flex;
  justify-content: center;
  margin-top: clamp(24px, 4vw, 40px);
}
.faq-more__btn {
  appearance: none;
  -webkit-appearance: none;
  border: 1px solid var(--surface-neutral-3);
  background: var(--surface-white);
  color: var(--surface-dark-blue-2);
  font-family: var(--font-pretendard);
  font-size: 15px;
  font-weight: 600;
  padding: 14px 36px;
  border-radius: 999px;
  cursor: pointer;
  transition: color 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}
.faq-more__btn:hover {
  border-color: var(--surface-primary);
  color: var(--surface-primary);
  box-shadow: var(--drop-shadow-1);
}
.faq-more__btn:focus-visible { outline: 2px solid var(--surface-primary); outline-offset: 2px; }

/* 결과 없음 */
.faq-empty {
  text-align: center;
  padding: 64px 20px;
}
.faq-empty__title {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 700;
  color: var(--surface-dark-blue-2);
}
.faq-empty__desc {
  margin: 0;
  font-size: 14px;
  color: var(--surface-neutral-5);
}

/* ---------- 반응형 ---------- */
@media (max-width: 768px) {
  .faq-list { grid-template-columns: 1fr; gap: 14px; }
  .faq-hero__search-input { font-size: 15px; padding: 16px 18px 16px 50px; }
  .faq-card { padding: 20px; border-radius: 14px; }
}