/* ===========================
   공통 푸터 (common/footer.html 용)
   =========================== */

.footer {
  background-color: var(--color-gray-100);
  padding: 73px 50px 91px;
  color: var(--color-white);
}

.footer-inner {
  display: flex;
  justify-content: center;
  gap: 80px;
  max-width: 1437px;
  margin: 0 auto;
  flex-wrap: wrap;
}

/* footer-nav: 데스크톱 = CSS Grid 2행(타이틀/컬럼) + 가운데 divider 라인
   .footer-nav-tab은 display:contents로 grid 자식이 직접 배치되도록 함 */
.footer-nav {
  flex: 1 1 500px;
  display: grid;
  grid-template-columns: repeat(4, auto);
  grid-template-rows: auto auto auto;
  column-gap: 90px;
  row-gap: 22px;
  justify-content: center;
  text-align: center;
  position: relative;
}

.footer-nav-tab {
  display: contents;
}

.footer-nav-item {
  margin: 0;
  grid-row: 1;
  font-size: var(--fs-19);
  font-family: 'Cormorant', serif;
  font-weight: 700;
  letter-spacing: -0.01em;
}

/* 가운데 divider: grid row 2를 가로지르는 가상 요소 */
.footer-nav::before {
  content: "";
  grid-row: 2;
  grid-column: 1 / -1;
  height: 1px;
  background-color: var(--color-white);
  opacity: 0.3;
}

.footer-col {
  grid-row: 3;
  display: flex;
  flex-direction: column;
  gap: 18px;
  font-size: var(--fs-13);
  font-family: var(--font-ko-main);
}

.footer-col-item {
  letter-spacing: -0.01em;
  font-weight: 500;
  color: inherit;
  text-decoration: none;
  cursor: pointer;
}
.footer-col-item:hover {
  text-decoration: underline;
  text-underline-offset: 4px;
}

.footer-info {
  flex: 0 1 400px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 34px;
  text-align: center;
}

.footer-logo {
  display: block;
  width: 336px;
  max-width: 100%;
  height: auto;
  margin: 0 auto;
  object-fit: cover;
}

.footer-contact {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  font-family: var(--font-ko-main);
  text-align: center;
}

.footer-phone {
  font-size: var(--fs-20);
  font-family: var(--font-roboto-serif);
  line-height: 150%;
}

.footer-address {
  font-size: var(--fs-13);
  font-family: var(--font-ko-sub);
  line-height: 230%;
}

.footer-contact-detail {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-copyright {
  font-size: var(--fs-13);
  font-family: var(--font-ko-sub);
  line-height: 160%;
  color: var(--color-white);
}

/* ≤ 1199px */
@media screen and (max-width: 1199px) {
  .footer {
    padding: 60px 30px;
  }
  .footer-nav {
    column-gap: 60px;
  }
}

/* ≤ 960px: 모바일 — 좌측 정렬 4탭 세로 + 클릭 토글 아코디언 */
@media screen and (max-width: 960px) {
  .footer-inner {
    flex-direction: column;
    gap: 40px;
  }
  .footer-info {
    flex: 1 1 auto;
  }
  .footer-nav {
    flex: 1 1 auto;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    text-align: left;
  }
  .footer-nav::before {
    display: none;
  }
  .footer-nav-tab {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
  }
  .footer-nav-item {
    grid-row: auto;
    cursor: pointer;
    width: 100%;
    padding: 16px 8px;
    text-align: left;
    user-select: none;
    position: relative;
  }
  .footer-nav-item::after {
    content: "+";
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.4em;
    line-height: 1;
    font-weight: 400;
  }
  .footer-nav-tab.is-open .footer-nav-item::after {
    content: "−";
  }
  .footer-col {
    grid-row: auto;
    display: none;
    padding: 0 8px 16px 8px;
    gap: 12px;
  }
  .footer-nav-tab.is-open .footer-col {
    display: flex;
  }
}

/* ≤ 420px */
@media screen and (max-width: 420px) {
  .footer {
    padding: 40px 16px;
  }
  .footer-logo {
    width: 100%;
  }
  .footer-copyright {
    font-size: 11px;
  }
}