/* =========================================================
   layout.css  –  헤더 / 푸터 등 공통 레이아웃
   ========================================================= */

/* =========================================================
   HEADER
   ========================================================= */
.header {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--header-h);
  z-index: var(--z-header);
  display: flex;
  align-items: center;
  background: linear-gradient(180deg, rgba(5, 5, 5, 0.88) 0%, rgba(5, 5, 5, 0.45) 55%, rgba(5, 5, 5, 0) 100%);
  transition: background 0.4s var(--ease-soft),
              backdrop-filter 0.4s var(--ease-soft),
              box-shadow 0.4s var(--ease-soft);
}

/* 스크롤 시 어둡고 선명하게 */
.header.is-scrolled {
  background: rgba(8, 7, 6, 0.92);
  backdrop-filter: blur(10px);
  box-shadow: 0 1px 0 var(--color-line), 0 10px 30px rgba(0, 0, 0, 0.4);
}

.header__inner {
  position: relative;
  width: 100%;
  max-width: var(--inner);
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

/* 로고 */
.logo {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  font-family: var(--font-eng);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--color-text);
  white-space: nowrap;
}
.logo b {
  color: var(--color-gold-light);
  font-weight: 700;
}

/* GNB — 헤더 정중앙 고정 */
.gnb {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}
.gnb__list {
  display: flex;
  align-items: center;
  gap: 36px;
}
.gnb__link {
  position: relative;
  display: inline-block;
  padding: 10px 4px 12px;
  font-size: 16px;
  font-weight: 500;
  color: var(--color-text);
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.7);
  transition: color 0.25s var(--ease-soft),
              transform 0.25s var(--ease-soft),
              text-shadow 0.25s var(--ease-soft),
              letter-spacing 0.25s var(--ease-soft);
}
/* 하단 밑줄 : 가운데에서 양쪽으로 퍼짐 + 골드 글로우 */
.gnb__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  border-radius: 2px;
  background: var(--grad-gold);
  box-shadow: 0 0 10px rgba(216, 177, 106, 0.7);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.35s var(--ease-soft), opacity 0.35s var(--ease-soft);
  opacity: 0;
}
/* 상단 작은 점 인디케이터 */
.gnb__link::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  width: 4px;
  height: 4px;
  margin-left: -2px;
  border-radius: 50%;
  background: var(--color-gold-light);
  box-shadow: 0 0 8px rgba(216, 177, 106, 0.9);
  transform: translateY(-4px) scale(0);
  transition: transform 0.3s var(--ease-soft);
}
.gnb__link:hover,
.gnb__link:focus-visible,
.gnb__link[aria-current="page"] {
  color: var(--color-gold-light);
  transform: translateY(-2px);
  letter-spacing: 0.02em;
  text-shadow: 0 0 14px rgba(216, 177, 106, 0.45);
}
.gnb__link:hover::after,
.gnb__link:focus-visible::after,
.gnb__link[aria-current="page"]::after {
  transform: scaleX(1);
  opacity: 1;
}
.gnb__link:hover::before,
.gnb__link[aria-current="page"]::before {
  transform: translateY(-4px) scale(1);
}
/* 현재 섹션 메뉴는 은은하게 점멸 */
.gnb__link[aria-current="page"] {
  animation: gnbPulse 2.4s ease-in-out infinite;
}
@keyframes gnbPulse {
  0%, 100% { text-shadow: 0 0 14px rgba(216, 177, 106, 0.35); }
  50%      { text-shadow: 0 0 20px rgba(216, 177, 106, 0.75); }
}

/* 우측 유틸 */
.header__util {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 16px;
}
.icon-btn {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: var(--color-text);
  transition: background 0.25s var(--ease-soft), color 0.25s var(--ease-soft);
}
.icon-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-gold-light);
}
.icon-btn svg {
  width: 20px;
  height: 20px;
  filter: drop-shadow(0 1px 4px rgba(0, 0, 0, 0.6));
}

.header__start {
  min-height: 44px;
  padding: 0 22px;
}

/* 햄버거 */
.hamburger {
  display: none;
  width: 46px;
  height: 46px;
  position: relative;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  /* 버튼임이 분명하게 보이도록 배경/테두리 */
  border: 1px solid var(--color-line-gold);
  border-radius: 10px;
  background: rgba(8, 7, 6, 0.45);
  backdrop-filter: blur(6px);
  transition: border-color 0.25s var(--ease-soft), background 0.25s var(--ease-soft);
}
.hamburger:hover {
  border-color: var(--color-gold-light);
  background: rgba(8, 7, 6, 0.65);
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  border-radius: 2px;
  background: var(--color-text);
  transition: transform 0.3s var(--ease-soft), opacity 0.3s var(--ease-soft);
}
.hamburger.is-active span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}
.hamburger.is-active span:nth-child(2) {
  opacity: 0;
}
.hamburger.is-active span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* =========================================================
   MOBILE MENU (오버레이 슬라이드)
   ========================================================= */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: calc(var(--z-header) - 1);
  background: rgba(6, 5, 4, 0.97);
  backdrop-filter: blur(8px);
  padding: calc(var(--header-h) + 24px) 24px 40px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-12px);
  transition: opacity 0.4s var(--ease-soft),
              transform 0.4s var(--ease-soft),
              visibility 0.4s var(--ease-soft);
  overflow-y: auto;
}
.mobile-menu.is-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.mobile-menu__list {
  display: flex;
  flex-direction: column;
}
.mobile-menu__item {
  border-bottom: 1px solid var(--color-line);
}
.mobile-menu__link {
  display: block;
  padding: 20px 4px;
  font-family: var(--font-title);
  font-size: 22px;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: color 0.25s var(--ease-soft), padding-left 0.25s var(--ease-soft);
}
.mobile-menu__link:hover {
  color: var(--color-gold-light);
  padding-left: 12px;
}
.mobile-menu__bottom {
  margin-top: 32px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.mobile-menu__util {
  display: flex;
  gap: 12px;
  margin-top: 8px;
}

/* =========================================================
   FOOTER
   ========================================================= */
.footer {
  position: relative;
  background: #060504;
  border-top: 1px solid var(--color-line);
  padding: 56px 0 40px;
}
.footer__inner {
  width: 100%;
  max-width: var(--inner);
  margin: 0 auto;
  padding: 0 40px;
}
.footer__top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 40px;
  flex-wrap: wrap;
}
.footer__logo {
  font-family: var(--font-eng);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--color-text);
}
.footer__logo b {
  color: var(--color-gold-light);
}

/* 정책 링크 */
.footer__policy {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin: 22px 0;
}
.footer__policy a {
  font-size: 13px;
  color: var(--color-text-sub);
  transition: color 0.25s var(--ease-soft);
}
.footer__policy a.is-strong {
  color: var(--color-gold-light);
  font-weight: 600;
}
.footer__policy a:hover {
  color: var(--color-text);
}

/* SNS */
.sns {
  display: flex;
  gap: 12px;
}
.sns a {
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-line);
  border-radius: 50%;
  color: var(--color-text-sub);
  transition: all 0.25s var(--ease-soft);
}
.sns a:hover {
  border-color: var(--color-line-gold);
  color: var(--color-gold-light);
  transform: translateY(-3px);
}
.sns svg {
  width: 18px;
  height: 18px;
}

.footer__info {
  margin-top: 8px;
  font-size: 13px;
  color: var(--color-text-mute);
  line-height: 1.9;
}
.footer__brand {
  margin-top: 18px;
  font-family: var(--font-eng);
  font-size: 14px;
  letter-spacing: 0.2em;
  color: var(--color-text-sub);
}
.footer__copy {
  margin-top: 10px;
  font-size: 12px;
  color: var(--color-text-mute);
  letter-spacing: 0.02em;
}

/* TOP 버튼 */
.top-btn {
  position: fixed;
  right: 28px;
  bottom: 28px;
  width: 52px;
  height: 52px;
  z-index: var(--z-header);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(20, 17, 12, 0.85);
  border: 1px solid var(--color-line-gold);
  color: var(--color-gold-light);
  backdrop-filter: blur(6px);
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: opacity 0.3s var(--ease-soft),
              transform 0.3s var(--ease-soft),
              visibility 0.3s var(--ease-soft),
              background 0.25s var(--ease-soft);
}
.top-btn.is-show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.top-btn:hover {
  background: var(--grad-gold);
  color: #1a130a;
}
.top-btn svg {
  width: 22px;
  height: 22px;
}

/* =========================================================
   반응형 – 헤더 / 푸터
   ========================================================= */
@media (max-width: 1199px) {
  .header__inner,
  .footer__inner {
    padding: 0 32px;
  }
  .gnb__list {
    gap: 24px;
  }
  .gnb__link {
    font-size: 15px;
  }
}

/* 태블릿 이하 – 햄버거 노출, GNB 숨김 */
@media (max-width: 1024px) {
  .gnb,
  .header__util .icon-btn--search,
  .header__util .header__start,
  .header__util .icon-btn--user {
    display: none;
  }
  .hamburger {
    display: flex;
  }
}

@media (max-width: 767px) {
  .header__inner,
  .footer__inner {
    padding: 0 20px;
  }
  .logo {
    font-size: 17px;
  }
  .footer {
    padding: 44px 0 32px;
  }
  .footer__top {
    flex-direction: column;
    gap: 24px;
  }
  .top-btn {
    right: 16px;
    bottom: 16px;
    width: 46px;
    height: 46px;
  }
}