:root {
  --wg-header-bg: rgba(3, 18, 34, 0.97);
  --wg-header-line: rgba(127, 216, 251, 0.15);
  --wg-header-text: rgba(229, 247, 255, 0.8);
  --wg-header-cyan: #8be5ff;
}

.wg-shared-header.site-nav {
  position: fixed !important;
  top: 0;
  right: 0;
  left: 0;
  z-index: 99990 !important;
  display: flex !important;
  min-height: 82px;
  align-items: center !important;
  justify-content: flex-start !important;
  gap: clamp(24px, 3.2vw, 52px) !important;
  padding: 16px clamp(20px, 4vw, 48px) !important;
  border-bottom: 1px solid var(--wg-header-line);
  color: #eef9ff;
  background: linear-gradient(180deg, var(--wg-header-bg), rgba(3, 18, 34, 0.91)) !important;
  box-shadow: 0 8px 30px rgba(0, 6, 15, 0.13);
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", "Noto Sans JP", sans-serif;
  pointer-events: auto !important;
  box-sizing: border-box !important;
}

.admin-bar .wg-shared-header.site-nav {
  top: 32px;
}

.wg-shared-header *,
.wg-shared-header *::before,
.wg-shared-header *::after {
  box-sizing: border-box;
}

.wg-shared-header .nav-logo {
  display: flex !important;
  flex: 0 0 auto;
  align-items: center !important;
  gap: 10px !important;
  color: #eef9ff !important;
  font-family: Georgia, "Hiragino Mincho ProN", serif !important;
  font-size: 15px !important;
  font-weight: 400 !important;
  letter-spacing: 0.3em !important;
  line-height: 1 !important;
  text-decoration: none !important;
  text-shadow: 0 1px 12px rgba(0, 28, 55, 0.7);
  white-space: nowrap;
}

.wg-shared-header .nav-logo-mark {
  width: 42px !important;
  height: 42px !important;
  margin: 0 !important;
  object-fit: contain;
  filter: drop-shadow(0 1px 6px rgba(0, 28, 55, 0.6));
}

.wg-shared-header .nav-links {
  position: static !important;
  display: flex !important;
  visibility: visible !important;
  flex: 0 1 auto;
  align-items: center !important;
  justify-content: flex-end !important;
  gap: clamp(22px, 2.5vw, 40px) !important;
  margin: 0 0 0 auto !important;
  padding: 0 !important;
  background: transparent !important;
  opacity: 1 !important;
  transform: none !important;
}

.wg-nav-primary,
.wg-nav-pages {
  display: flex;
  align-items: center;
}

.wg-nav-primary {
  gap: clamp(14px, 1.75vw, 26px);
}

.wg-nav-pages {
  gap: clamp(16px, 2vw, 30px);
  margin-left: 0;
  padding-left: clamp(20px, 2.4vw, 36px);
  border-left: 1px solid rgba(139, 229, 255, 0.24);
}

.wg-shared-header .nav-links a {
  position: relative;
  display: inline-block;
  padding: 5px 0 !important;
  color: var(--wg-header-text) !important;
  font-size: 10px !important;
  font-weight: 400 !important;
  letter-spacing: 0.19em !important;
  line-height: 1.4 !important;
  text-decoration: none !important;
  text-shadow: 0 1px 10px rgba(0, 28, 55, 0.7);
  white-space: nowrap;
  transition: color 0.25s ease, text-shadow 0.25s ease;
}

.wg-shared-header .wg-nav-pages a {
  color: rgba(184, 234, 252, 0.9) !important;
}

.wg-shared-header .nav-links a::after {
  content: "";
  position: absolute;
  right: 0.19em;
  bottom: -4px;
  left: 0;
  height: 1px;
  background: var(--wg-header-cyan);
  opacity: 0;
  transform: scaleX(0.25);
  transform-origin: left;
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.wg-shared-header .nav-links a:hover,
.wg-shared-header .nav-links a.is-active {
  color: #fff !important;
  text-shadow: 0 0 16px rgba(139, 229, 255, 0.8) !important;
}

.wg-shared-header .nav-links a:hover::after,
.wg-shared-header .nav-links a.is-active::after {
  opacity: 0.95;
  transform: scaleX(1);
}

.wg-shared-header .mobile-menu-toggle,
.wg-shared-header .mobile-menu-backdrop {
  display: none;
}

/* BLOG: SWELL標準ヘッダーを共通ヘッダーへ置き換える */
.wg-shared-header-page #header.l-header,
.wg-shared-header-page .l-header.-series {
  display: none !important;
}

.wg-shared-header-page {
  padding-top: 82px !important;
}

/* PLAN: 固定ヘッダー分の余白 */
body.wg-has-shared-header {
  padding-top: 89px !important;
}

@media (max-width: 1080px) {
  .wg-shared-header.site-nav {
    gap: 22px !important;
    padding-right: 24px !important;
    padding-left: 24px !important;
  }

  .wg-nav-primary {
    gap: 14px;
  }

  .wg-nav-pages {
    gap: 16px;
    padding-left: 20px;
  }

  .wg-shared-header .nav-links a {
    font-size: 9px !important;
    letter-spacing: 0.14em !important;
  }
}

@media (max-width: 782px) {
  .admin-bar .wg-shared-header.site-nav {
    top: 46px;
  }
}

@media (max-width: 768px) {
  .wg-shared-header.site-nav {
    min-height: 68px;
    justify-content: space-between !important;
    padding: 12px 18px !important;
  }

  .wg-shared-header .nav-logo {
    position: relative;
    z-index: 3;
    font-size: 13px !important;
  }

  .wg-shared-header .nav-logo-mark {
    width: 36px !important;
    height: 36px !important;
  }

  .wg-shared-header .mobile-menu-toggle {
    position: relative;
    z-index: 4;
    display: flex !important;
    width: 44px;
    height: 44px;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    margin: 0;
    padding: 0;
    border: 0;
    border-radius: 0;
    color: #eef9ff;
    background: transparent !important;
    box-shadow: none;
    cursor: pointer;
  }

  .wg-shared-header .mobile-menu-toggle span {
    display: block;
    width: 24px;
    height: 1px;
    background: currentColor;
    transition: transform 0.3s ease, opacity 0.3s ease;
  }

  .wg-shared-header .nav-links {
    position: fixed !important;
    inset: 0 !important;
    z-index: 2;
    display: flex !important;
    visibility: hidden !important;
    flex-direction: column;
    align-items: center !important;
    justify-content: center !important;
    gap: 32px !important;
    padding: 92px 24px 46px !important;
    background: rgba(3, 16, 30, 0.985) !important;
    opacity: 0 !important;
    transform: translateY(-8px) !important;
    transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease;
  }

  .wg-shared-header.menu-open .nav-links {
    visibility: visible !important;
    opacity: 1 !important;
    transform: none !important;
  }

  .wg-nav-primary {
    flex-direction: column;
    gap: 23px;
  }

  .wg-nav-pages {
    display: flex;
    width: min(100%, 330px);
    flex-direction: column;
    gap: 18px;
    margin: 0;
    padding: 26px 0 0;
    border-top: 1px solid rgba(139, 229, 255, 0.24);
    border-left: 0;
    text-align: center;
  }

  .wg-shared-header .nav-links a {
    width: max-content !important;
    min-width: 0 !important;
    align-self: center !important;
    margin-right: auto !important;
    margin-left: auto !important;
    font-size: 13px !important;
    letter-spacing: 0.22em !important;
    text-align: center !important;
  }

  .wg-shared-header .wg-nav-pages a {
    font-size: 11px !important;
    letter-spacing: 0.15em !important;
  }

  .wg-shared-header.menu-open .mobile-menu-toggle span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .wg-shared-header.menu-open .mobile-menu-toggle span:nth-child(2) {
    opacity: 0;
  }

  .wg-shared-header.menu-open .mobile-menu-toggle span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  body.mobile-menu-open {
    overflow: hidden !important;
  }

  .wg-shared-header-page {
    padding-top: 68px !important;
  }

  body.wg-has-shared-header {
    padding-top: 73px !important;
  }
}

@media (prefers-reduced-motion: reduce) {
  .wg-shared-header *,
  .wg-shared-header *::before,
  .wg-shared-header *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
  }
}