/* ヘッダーのメニューボタンとナビゲーションモーダル */
.app-header {
  flex-wrap: nowrap;
}

.app-title {
  flex: 1;
  min-width: 0;
}

.app-title .app-name {
  overflow-wrap: anywhere;
}

.menu-button {
  display: inline-grid;
  flex: 0 0 auto;
  width: 48px;
  min-height: 48px;
  margin-left: auto;
  padding: 0;
  place-items: center;
  border: 2px solid var(--green-deep);
  border-radius: 50%;
  color: var(--green-deep);
  background: rgba(255, 255, 255, 0.9);
  cursor: pointer;
}

.menu-button-icon {
  display: grid;
  width: 23px;
  gap: 5px;
}

.menu-button-icon span {
  display: block;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
}

.menu-button:hover,
.menu-button:focus-visible {
  border-color: var(--green);
  background: var(--green-soft);
}

.menu-button:focus-visible,
.menu-close-button:focus-visible,
.navigation-menu-list .menu-item:focus-visible {
  outline: 3px solid rgba(23, 75, 99, 0.24);
  outline-offset: 2px;
}

.navigation-menu-modal[hidden] {
  display: none;
}

.navigation-menu-modal {
  position: fixed;
  inset: 0;
  z-index: 115;
  display: grid;
  place-items: center;
  padding: 10px;
}

.navigation-menu-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(42, 48, 46, 0.58);
  cursor: pointer;
}

.navigation-menu-dialog {
  position: relative;
  z-index: 1;
  width: min(100%, 390px);
  max-height: calc(100vh - 20px);
  overflow-y: auto;
  border: 1px solid rgba(23, 75, 99, 0.1);
  border-radius: 20px;
  background: var(--paper);
  box-shadow: 0 24px 70px rgba(23, 75, 99, 0.22);
}

.navigation-menu-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 20px 18px;
  border-bottom: 1px solid var(--line);
}

.navigation-menu-header h2 {
  margin: 0;
  font-size: 1.35rem;
}

.menu-close-button {
  position: relative;
  flex: 0 0 auto;
  width: 44px;
  min-height: 44px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--muted);
  background: #fff;
  cursor: pointer;
}

.menu-close-button::before,
.menu-close-button::after {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
  content: "";
}

.menu-close-button::before {
  transform: translate(-50%, -50%) rotate(45deg);
}

.menu-close-button::after {
  transform: translate(-50%, -50%) rotate(-45deg);
}

.navigation-menu-list,
.menu-management-group {
  display: grid;
  gap: 10px;
}

.navigation-menu-list {
  padding: 18px 20px 22px;
}

.navigation-menu-list .menu-item {
  display: flex;
  flex: none;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  min-height: 54px;
  margin: 0;
  padding: 11px 14px;
  border: 1px solid #cbd8d2;
  border-radius: 12px;
  color: var(--green-deep);
  background: #fff;
  font-size: 0.9rem;
  font-weight: 800;
  line-height: 1.4;
  text-align: center;
  text-decoration: none;
  white-space: normal;
  cursor: pointer;
}

.navigation-menu-list .menu-item:hover,
.navigation-menu-list .menu-item:focus-visible {
  border-color: var(--green);
  background: var(--green-soft);
}

.navigation-menu-list .management-tab.active {
  border-color: var(--green);
  background: var(--green-soft);
  box-shadow: inset 0 0 0 1px var(--green);
}

.navigation-menu-list .language-button-icon {
  font-size: 1.15rem;
}

@media (prefers-reduced-motion: reduce) {
  .menu-button,
  .navigation-menu-list .menu-item {
    transition: none;
  }
}