.p-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.p-header__logo {
  display: flex;
  align-items: center;
}

.p-header__logo img {
  height: 28px;
  width: auto;
}

.p-header__nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.p-header__nav-list {
  display: flex;
  gap: 28px;
}

.p-header__nav-link {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
  transition: color 0.3s ease;
}

.p-header__nav-link.is-active {
  color: var(--color-accent);
}

.p-header__nav-extra {
  display: none;
}

.p-header__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
}

.p-header__toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-text);
  transition: background-color 0.3s ease;
}

.l-header--overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background-color: transparent;
  border-bottom-color: transparent;
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

.l-header--overlay .p-header__nav-link {
  color: #ffffff;
}

.l-header--overlay .p-header__nav-link.is-active {
  color: #ffffff;
  opacity: 0.85;
}

.l-header--overlay .p-header__toggle-bar {
  background-color: #ffffff;
}

.l-header--overlay.is-scrolled {
  background-color: rgba(8, 15, 26, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom-color: var(--color-border);
}

.l-header--overlay.is-scrolled .p-header__nav-link {
  color: var(--color-text);
}

.l-header--overlay.is-scrolled .p-header__nav-link.is-active {
  color: var(--color-accent);
  opacity: 1;
}

.l-header--overlay.is-scrolled .p-header__toggle-bar {
  background-color: var(--color-text);
}

@media (max-width: 900px) {
  .l-header--overlay .p-header__nav {
    background-color: var(--color-bg);
  }

  .l-header--overlay .p-header__nav-link {
    color: var(--color-text);
  }

  .l-header--overlay .p-header__nav-link.is-active {
    color: var(--color-accent);
    opacity: 1;
  }
}

@media (max-width: 900px) {
  .p-header__nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    height: calc(100dvh - 72px);
    flex-direction: column;
    align-items: flex-start;
    gap: 24px;
    padding: 32px 24px;
    background-color: var(--color-bg);
    transform: translateX(100%);
    transition: transform 0.25s ease;
    overflow-y: auto;
  }

  .p-header__nav.is-open {
    transform: translateX(0);
  }

  .p-header__nav-list {
    flex-direction: column;
    gap: 20px;
    width: 100%;
  }

  .p-header__toggle {
    display: flex;
  }

  .p-header__nav-extra {
    display: flex;
    flex-direction: column;
    gap: 28px;
    width: 100%;
    margin-top: 4px;
    padding-top: 28px;
    border-top: 1px solid var(--color-border);
  }

  .p-header__nav-group-label {
    font-family: var(--font-family-mono);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.16em;
    color: var(--color-accent-bright);
    margin-bottom: 14px;
  }

  .p-header__nav-sublist {
    display: flex;
    flex-direction: column;
    gap: 12px;
  }

  .p-header__nav-sublink {
    position: relative;
    display: inline-block;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    transition: color 0.2s ease, padding-left 0.2s ease;
  }

  .p-header__nav-sublink::before {
    content: '・';
    color: var(--color-accent-bright);
  }

  .p-header__nav-sublink:hover {
    color: var(--color-accent-bright);
    padding-left: 6px;
  }

  .p-header__nav-address,
  .p-header__nav-tel {
    display: block;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    line-height: 1.7;
  }

  .p-header__nav-tel {
    color: var(--color-accent-bright);
    margin-top: 2px;
  }
}