/* ===== Top Utility Bar ===== */
.top-bar {
  background: var(--color-bg);
  font-size: var(--font-size-meta);
  color: var(--color-text-muted);
}

.top-bar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0 0 0;
}

.top-bar__links {
  display: flex;
  gap: 12px;
}

.top-bar__links a:hover {
  color: var(--color-brand);
}

/* ===== Main Header ===== */
.site-header {
  background: var(--color-bg);
  padding: 16px 0 20px;
}

.site-header__inner {
  display: grid;
  grid-template-columns: var(--header-banner-width) 1fr var(--header-banner-width);
  align-items: center;
  gap: 24px;
}

.header-banner {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 60px;
  background: var(--color-bg-subtle);
  border: 1px dashed var(--color-border);
  border-radius: 4px;
  font-size: var(--font-size-caption);
  color: var(--color-text-light);
}

.header-banner--right {
  justify-self: end;
}

.logo {
  justify-self: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.logo__text {
  font-size: var(--font-size-logo);
  font-weight: 800;
  font-style: italic;
  letter-spacing: -0.02em;
  line-height: 1;
}

.logo__text--brand {
  color: var(--color-brand);
}

.logo__text--dark {
  color: var(--color-text);
}

.logo__name {
  font-size: var(--font-size-logo-name);
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: 0.08em;
}

/* ===== GNB ===== */
.gnb {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  overflow: visible;
}

.gnb__inner {
  display: flex;
  align-items: center;
  height: var(--gnb-height);
  gap: 8px;
  overflow: visible;
}

.gnb__menu-btn {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
}

.gnb__menu-btn span {
  display: block;
  height: 2px;
  background: var(--color-text);
  border-radius: 1px;
}

.gnb__list {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  height: 100%;
  overflow: visible;
}

.gnb__item {
  position: relative;
  display: flex;
  align-items: center;
  height: var(--gnb-height);
}

.gnb__item-row {
  display: flex;
  align-items: center;
  height: 100%;
  gap: 2px;
}

.gnb__sub-toggle {
  display: none;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  color: var(--color-text-muted);
}

.gnb__sub-toggle-icon {
  width: 14px;
  height: 14px;
  transition: transform var(--transition);
}

.gnb__item--has-sub.is-open .gnb__sub-toggle-icon {
  transform: rotate(180deg);
}

.gnb__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  height: 100%;
  padding: 0 14px;
  font-size: var(--font-size-article);
  font-weight: 600;
  color: var(--color-text);
  white-space: nowrap;
  transition: color var(--transition);
}

.gnb__link:hover,
.gnb__link.is-active {
  color: var(--color-brand);
}

.gnb__link.is-active::after {
  content: '';
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: var(--gnb-active-padding);
  height: var(--gnb-active-border);
  background: var(--color-brand);
}

/* GNB 2차 메뉴 */
.gnb__sub {
  display: none;
  position: absolute;
  top: 100%;
  left: 50%;
  min-width: 168px;
  padding: 8px 0;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 0 0 var(--box-radius) var(--box-radius);
  box-shadow: var(--box-shadow);
  transform: translateX(-50%);
  z-index: 110;
}

.gnb__sub-link {
  display: block;
  padding: 10px 18px;
  font-size: var(--font-size-small);
  font-weight: 500;
  color: var(--color-text);
  white-space: nowrap;
  transition: color var(--transition), background var(--transition);
}

.gnb__sub-link:hover {
  color: var(--color-brand);
  background: var(--color-bg-subtle);
}

.gnb__search-btn {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  color: var(--color-text);
}

.gnb__search-btn:hover {
  color: var(--color-brand);
}

.gnb__search-btn svg {
  width: 22px;
  height: 22px;
}

/* ===== Search Panel ===== */
.search-panel {
  display: none;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
}

.search-panel.is-open {
  display: block;
}

.search-panel__inner {
  display: flex;
  gap: 8px;
  padding-top: 16px;
  padding-bottom: 16px;
}

@media (max-width: 1024px) {
  .search-panel__inner {
    padding-left: var(--container-padding);
    padding-right: var(--container-padding);
  }
}

.search-panel__input {
  flex: 1;
  height: 44px;
  padding: 0 16px;
  border: 2px solid var(--color-text);
  border-radius: 4px;
  background: var(--color-bg);
  font-size: var(--font-size-article);
}

.search-panel__input:focus {
  outline: none;
  border-color: var(--color-brand);
}

.search-panel__submit {
  height: 44px;
  padding: 0 24px;
  background: var(--color-brand);
  color: #fff;
  font-weight: 600;
  border-radius: 4px;
}

.search-panel__submit:hover {
  background: var(--color-brand-dark);
}

/* ===== Footer ===== */
.site-footer {
  margin-top: var(--gap-section);
  background: var(--color-bg-footer);
  border-top: 1px solid var(--color-border);
}

.footer-nav {
  padding: 20px 0;
  border-bottom: 1px solid var(--color-border);
}

.footer-nav__list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 4px 0;
}

.footer-nav__list li:not(:last-child)::after {
  content: '|';
  margin: 0 12px;
  color: var(--color-text-light);
}

.footer-nav__list a {
  font-size: var(--font-size-small);
  color: var(--color-text-muted);
}

.footer-nav__list a:hover {
  color: var(--color-brand);
}

.footer-info {
  padding: 24px 0 32px;
  font-size: var(--font-size-meta);
  line-height: 1.8;
  color: var(--color-text-light);
  text-align: center;
}

.footer-info__site {
  font-weight: 600;
  color: var(--color-text-muted);
  margin-bottom: 8px;
}

.footer-info__copy {
  margin-top: 12px;
  font-size: var(--font-size-caption);
}

/* ===== Side Drawer (mobile prep) ===== */
.drawer-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 900;
  background: rgba(0, 0, 0, 0.5);
}

.drawer-overlay.is-visible {
  display: block;
}

.side-drawer {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1000;
  width: 80%;
  max-width: 320px;
  height: 100vh;
  background: var(--color-bg);
  transform: translateX(-100%);
  transition: transform 0.3s ease;
  overflow-y: auto;
}

.side-drawer.is-open {
  transform: translateX(0);
}

.side-drawer__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px;
  border-bottom: 1px solid var(--color-border);
}

.side-drawer .logo__text {
  font-size: var(--font-size-logo-drawer);
}

.side-drawer__close {
  width: 44px;
  height: 44px;
  font-size: var(--font-size-drawer-close);
  color: var(--color-text);
}

.side-drawer__nav a {
  display: block;
  padding: 14px 16px;
  font-size: var(--font-size-article);
  font-weight: 600;
  border-bottom: 1px solid var(--color-border);
}

.side-drawer__item--has-sub {
  border-bottom: 1px solid var(--color-border);
}

.side-drawer__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.side-drawer__sub-toggle {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  color: var(--color-text-muted);
}

.side-drawer__sub-toggle-icon {
  width: 16px;
  height: 16px;
  transition: transform var(--transition);
}

.side-drawer__item--has-sub.is-open .side-drawer__sub-toggle-icon {
  transform: rotate(180deg);
}

.side-drawer__link {
  flex: 1;
  display: block;
  padding: 14px 16px;
  font-size: var(--font-size-article);
  font-weight: 600;
}

.side-drawer__sub {
  display: none;
  background: var(--color-bg-subtle);
}

.side-drawer__item--has-sub.is-open .side-drawer__sub {
  display: block;
}

.side-drawer__sub a {
  padding: 12px 16px 12px 24px;
  font-size: var(--font-size-small);
  font-weight: 500;
  color: var(--color-text-muted);
  border-bottom: 1px solid var(--color-border);
}

.side-drawer__sub a:last-child {
  border-bottom: none;
}

.side-drawer__nav a:hover,
.side-drawer__link:hover,
.side-drawer__sub a:hover {
  color: var(--color-brand);
}

@media (max-width: 1024px) {
  .site-header__inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .header-banner {
    display: none;
  }

  .gnb__inner {
    display: grid;
    grid-template-columns: 40px 1fr 40px;
    align-items: center;
    gap: 0;
  }

  .gnb__menu-btn {
    grid-column: 1;
    justify-self: start;
  }

  .gnb__list {
    grid-column: 2;
    justify-content: center;
    min-width: 0;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    -ms-overflow-style: none;
  }

  .gnb__search-btn {
    grid-column: 3;
    justify-self: end;
  }

  .gnb__list::-webkit-scrollbar {
    display: none;
  }

  .gnb__sub-toggle {
    display: flex;
  }

  .gnb__item--has-sub .gnb__link {
    padding-right: 4px;
  }

  .gnb__item--has-sub.is-open .gnb__sub {
    display: block;
    position: fixed;
    left: 0;
    right: 0;
    top: var(--gnb-panel-top, 0);
    width: 100%;
    min-width: 0;
    transform: none;
    border-radius: 0;
    border-left: none;
    border-right: none;
  }
}

@media (min-width: 1025px) {
  .gnb__menu-btn {
    display: none;
  }

  .gnb__sub-toggle {
    display: none;
  }

  .gnb__item--has-sub:hover .gnb__sub,
  .gnb__item--has-sub:focus-within .gnb__sub {
    display: block;
  }

  .side-drawer,
  .drawer-overlay {
    display: none !important;
  }
}