/* 형제 사이트 로고 — 홈 로고와 동일 높이·균등 간격 */
.site-header-brand-row {
  display: flex;
  align-items: center;
  gap: 20px;
  min-width: 0;
  flex-shrink: 1;
  position: relative;
}

.sibling-sites {
  display: flex;
  align-items: center;
  margin-left: 0;
  flex-shrink: 0;
}

.sibling-sites-desktop {
  display: flex;
  align-items: center;
  gap: 20px;
}

.sibling-site-link {
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 0;
  text-decoration: none;
  filter: grayscale(1);
  opacity: 0.42;
  transform: scale(1);
  transition: filter 0.2s ease, opacity 0.2s ease, transform 0.2s ease;
  width: 120px;
  height: 36px;
  flex-shrink: 0;
  position: relative;
  overflow: hidden;
  border-radius: 6px;
}

.sibling-site-link:hover,
.sibling-site-link:focus-visible {
  filter: none;
  opacity: 1;
  transform: scale(1.04);
  outline: none;
}

.sibling-site-link img,
.sibling-site-link picture,
.sibling-site-link picture img {
  display: block;
  height: 36px;
  width: auto;
  max-width: 120px;
  max-height: 36px;
  object-fit: contain;
  object-position: center center;
}

/* 로고 hover 오버레이 (홈 + 형제) */
.brand-logo-slot {
  position: relative;
  overflow: hidden;
  border-radius: 6px;
}

.brand-logo-media {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  line-height: 0;
}

.brand-logo-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.88);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.22s ease, transform 0.22s ease;
  pointer-events: none;
  z-index: 2;
}

.brand-logo-tagline {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: #0f172a;
  white-space: nowrap;
  line-height: 1;
}

@media (hover: hover) and (pointer: fine) {
  .brand-logo-slot:hover .brand-logo-overlay,
  .brand-logo-slot:focus-visible .brand-logo-overlay {
    opacity: 1;
    transform: translateY(0);
  }
}

.sibling-sites-panel .brand-logo-overlay {
  display: none;
}

.sibling-sites-mobile {
  display: none;
}

.sibling-sites-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  padding: 0;
  border: 1px solid #ddd;
  border-radius: 50%;
  background: #fff;
  color: #64748b;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}

.sibling-sites-toggle:hover,
.sibling-sites-toggle[aria-expanded="true"] {
  border-color: #cbd5e1;
  color: #334155;
  background: #f8fafc;
}

.sibling-sites-toggle svg {
  width: 14px;
  height: 14px;
  transition: transform 0.2s ease;
}

.sibling-sites-toggle[aria-expanded="true"] svg {
  transform: rotate(180deg);
}

.sibling-sites-panel {
  position: absolute;
  top: calc(100% + 8px);
  left: -10px;
  right: 0;
  min-width: 0;
  width: auto;
  padding: 8px 10px;
  background: #fff;
  border: 1px solid #e8eef5;
  border-radius: 12px;
  box-shadow: 0 12px 32px rgba(15, 23, 42, 0.14);
  display: flex;
  flex-direction: column;
  gap: 4px;
  z-index: 200;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transform-origin: top left;
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
}

.sibling-sites-panel.is-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.sibling-sites-panel .sibling-site-link {
  filter: none;
  opacity: 1;
  transform: none;
  width: auto;
  height: auto;
  justify-content: flex-start;
  padding: 10px 8px 10px 0;
  border-radius: 8px;
  transition: background 0.15s;
}

.sibling-sites-panel .sibling-site-link:hover,
.sibling-sites-panel .sibling-site-link:focus-visible {
  background: #f1f5f9;
  transform: none;
}

.sibling-sites-panel .sibling-site-link img,
.sibling-sites-panel .sibling-site-link picture img {
  height: 32px;
  max-width: 140px;
}

@media (max-width: 768px) {
  .site-header-brand-row {
    gap: 12px;
  }
  .sibling-sites {
    margin-left: 0;
  }
  .sibling-sites-desktop {
    display: none;
  }
  .sibling-sites-mobile {
    display: block;
  }
  .sibling-sites-toggle {
    margin-left: 0;
  }
  .sibling-site-link {
    width: 96px;
    height: 30px;
  }
  .sibling-site-link img,
  .sibling-site-link picture img {
    height: 30px;
    max-height: 30px;
    max-width: 96px;
  }
}