/* メインナビゲーションのスタイル */
.main-navigation {
  background-color: #fff;
  border-bottom: 2px solid #989bc6;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  position: sticky;
  top: 0;
  z-index: 1000;
  position: relative;
}

.main-navigation__container {
  width: 100%;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
  gap: 24px;
}

.main-navigation__brand {
  flex-shrink: 0;
}

.main-navigation__brand-link {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  transition: opacity 0.2s ease;
}

.main-navigation__brand-link:hover {
  opacity: 0.8;
}

.main-navigation__brand-character {
  height: 46px;
  width: auto;
}

.main-navigation__brand-logo {
  height: 24px;
  width: auto;
}

.main-navigation__content {
  display: contents;
}

.main-navigation__toggle {
  display: none;
}

.main-navigation__menu {
  display: flex;
  align-items: center;
  gap: 30px;
  flex: 1;
  justify-content: center;
  padding: 0 40px;
}

.main-navigation__link {
  color: #4a507c;
  text-decoration: none;
  font-size: 16px;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 6px;
  transition: all 0.2s ease;
  position: relative;
}

.main-navigation__link--external {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.main-navigation__external-icon {
  font-size: 12px;
  line-height: 1;
}

.main-navigation__link:hover {
  background-color: rgba(152, 155, 198, 0.15);
  transform: translateY(-1px);
}

.main-navigation__link--active {
  background-color: rgba(152, 155, 198, 0.25);
  font-weight: 600;
}

/* ユーザー情報・ログアウトエリア */
.main-navigation__user {
  display: flex;
  align-items: center;
  gap: 15px;
  flex-shrink: 0;
}

.main-navigation__user-name {
  color: #4a507c;
  font-size: 14px;
  font-weight: 500;
  opacity: 0.9;
}

.main-navigation__logout-btn {
  background-color: rgba(152, 155, 198, 0.15);
  color: #4a507c;
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 6px;
  transition: all 0.2s ease;
  border: 1px solid rgba(152, 155, 198, 0.6);
}

.main-navigation__logout-btn:hover {
  background-color: rgba(152, 155, 198, 0.3);
  transform: translateY(-1px);
}

/* メインコンテンツのスタイル */
.main-content {
  height: calc(100vh - 62px);
  overflow-y: auto; /* メインコンテンツ全体でスクロール */
  display: flex;
  flex-direction: column;
  width: 100%;
  box-sizing: border-box;
}

/* ナビゲーションが無い画面（打刻画面など）でのメインコンテンツ */
body:has(.time-recorder) .main-content {
  height: 100vh;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
  .main-navigation__container {
    padding: 0 15px;
    height: 56px;
    position: relative;
  }
  
  .main-navigation__brand-character {
    height: 42px;
  }

  .main-navigation__brand-logo {
    height: 18px;
  }
  
  .main-navigation__toggle {
    width: 42px;
    height: 42px;
    padding: 9px;
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    background: transparent;
    border: 0;
    border-radius: 6px;
    cursor: pointer;
  }

  .main-navigation__toggle:focus-visible {
    outline: 2px solid #4a507c;
    outline-offset: 2px;
  }

  .main-navigation__toggle-line {
    display: block;
    width: 100%;
    height: 3px;
    border-radius: 2px;
    background-color: #4a507c;
    transition: transform 0.2s ease, opacity 0.2s ease;
  }

  .main-navigation__toggle[aria-expanded="true"] .main-navigation__toggle-line:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }

  .main-navigation__toggle[aria-expanded="true"] .main-navigation__toggle-line:nth-child(2) {
    opacity: 0;
  }

  .main-navigation__toggle[aria-expanded="true"] .main-navigation__toggle-line:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }

  .main-navigation__content {
    display: none;
    position: absolute;
    top: 56px;
    left: 0;
    right: 0;
    padding: 12px 15px 16px;
    background-color: #fff;
    border-top: 1px solid rgba(152, 155, 198, 0.4);
    border-bottom: 2px solid #989bc6;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.15);
  }

  .main-navigation__content--open {
    display: block;
  }

  .main-navigation__menu {
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 0;
  }
  
  .main-navigation__link {
    font-size: 14px;
    padding: 10px 12px;
    text-align: center;
  }

  .main-navigation__user {
    justify-content: center;
    margin-top: 10px;
    padding-top: 12px;
    border-top: 1px solid rgba(152, 155, 198, 0.4);
  }
  
  .main-content {
    height: calc(100vh - 56px);
  }

  body:has(.time-recorder) .main-content {
    height: 100vh;
  }
}

@media (max-width: 480px) {
  .main-navigation__container {
    height: 56px;
    padding: 0 15px;
  }
  
  .main-navigation__link {
    font-size: 14px;
    padding: 10px 12px;
  }
  
  .main-content {
    height: calc(100vh - 56px);
  }

  body:has(.time-recorder) .main-content {
    height: 100vh;
  }
}