.topnav {
  position: sticky;
  top: 0;
  align-self: start;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  padding: 0.625rem 2.5rem;
  background: var(--topnav-bgc);
  color: var(--topnav-txt);
  box-shadow: 0px 6px 12px -4px rgba(0, 0, 0, 0.2);
  z-index: 100;
  overflow: hidden;
}
.topnavhide {
  transform: translateY(-350px);
  opacity: 0;
  transition: 0.8s ease;
}
.topnavshow {
  animation: topnavshow 0.5s ease;
}
@keyframes topnavshow {
  from {
    opacity: 0;
    transform: translateY(-350px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
/* ============================================== */
/* ====================      ==================== */
/* ==================== left ==================== */
/* ====================      ==================== */
/* ============================================== */
.nav-left {
  display: flex;
  justify-content: start;
  align-items: center;
}

.nav-left .logo {
  /* width: fit-content; */
  width: 70px;
  height: auto;
  text-align: center;
}

.nav-left .logo a {
  width: 100%;
  height: auto;
  display: block;
  text-decoration: none;
  border-radius: 0.5rem;
  padding: 0.25rem;
}

.nav-left .logo a:hover {
  background: #ffc0cb80;
}

.nav-left .logo a img {
  max-width: 100%;
  height: 60px;
}

/* ================================================ */
/* ====================        ==================== */
/* ==================== center ==================== */
/* ====================        ==================== */
/* ================================================ */
.nav-center {
  display: flex;
  justify-content: center;
  align-items: center;
}

.nav-center .search {
  width: 100%;
}

.search form label {
  display: flex;
  border-radius: 0.75rem;
}

.search input {
  width: 50%;
  padding: 0.5rem 0.75rem;
  margin-left: 25%;
  background: var(--secondary-bgc);
  font-size: 1.25rem;
  outline: none;
  border: 1px solid var(--input-clr);
  border-top-left-radius: 0.25rem;
  border-bottom-left-radius: 0.25rem;
  transition: all 500ms linear;
  color: var(--primary-txt);
}

.search input:focus {
  width: 100%;
  margin: 0;
  border: 1px solid var(--input-clr);
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
}

.search form label button {
  border: 0;
  outline: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 0.5rem 0.75rem;
  background: var(--input-clr);
  color: #ffffff;
  border-radius: 0.25rem;
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
  transition: all 500ms linear;
}

.search i {
  cursor: pointer;
}

/* =============================================== */
/* ====================       ==================== */
/* ==================== right ==================== */
/* ====================       ==================== */
/* =============================================== */
.nav-right {
  width: 100%;
  height: 100%;
}

.nav-right .nav-group {
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: end;
  align-items: center;
  gap: 0.5rem;
}

.nav-right .nav-group button {
  background: var(--secondary-bgc);
  border: 0;
  outline: 0;
  padding: 0;
}

.nav-right .nav-group button img {
  max-width: 100%;
  object-fit: cover;
}

.nav-right .nav-group .notification i,
.nav-right .nav-group .user i,
.nav-right .nav-group .theme i,
.nav-right .nav-group .sm-search i {
  position: relative;
  cursor: pointer;
  padding: 1rem;
  color: var(--primary-txt);
  transition: 500ms;
  font-size: 16px;
}

.nav-right .nav-group .notification,
.nav-right .nav-group .user,
.nav-right .nav-group .theme,
.nav-right .nav-group .sm-search,
.nav-right .nav-group .userimg {
  text-align: center;
  width: 60px;
  cursor: pointer;
}

.nav-right .nav-group .sm-search {
  display: none;
}

.nav-right .nav-group .notification:hover i {
  color: var(--notification-i-clr);
}

.nav-right .nav-group .user:hover i {
  color: var(--user-i-clr);
}

.nav-right .nav-group .theme:hover i {
  color: var(--theme-i-clr);
}
.nav-right .nav-group .sm-search:hover i {
  color: var(--input-clr);
}

/* icon 圖示的底線 */
.nav-right .nav-group i::after {
  content: "";
  position: absolute;
  bottom: 0.5rem;
  left: 0;
  width: 100%;
  height: 2px;
  background: transparent;
  transition: 500ms ease;
  opacity: 0;
}

.nav-right .nav-group .notification:hover i::after {
  background: var(--notification-i-clr);
  bottom: 0;
  opacity: 1;
}

.nav-right .nav-group .user:hover i::after {
  background: var(--user-i-clr);
  bottom: 0;
  opacity: 1;
}

.nav-right .nav-group .theme:hover i::after {
  background: var(--theme-i-clr);
  bottom: 0;
  opacity: 1;
}
.nav-right .nav-group .sm-search:hover i::after {
  background: var(--input-clr);
  bottom: 0;
  opacity: 1;
}

/* 搜尋框的樣式 (預設隱藏) */
.mobile-search {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(231, 162, 162, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  flex-direction: row;
  gap: 10px;
  padding: 20px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease-in-out;
  transform: translateY(-105%);
}

/* 顯示搜尋框 */
.mobile-search.active {
  transform: translateY(0);
}

/* 搜尋框內的輸入框 */
.mobile-search input {
  width: 70%;
  padding: 10px;
  font-size: 16px;
  border: none;
  border-radius: 5px;
  color: #000;
}
.mobile-search input:focus,
.mobile-search textarea:focus {
  outline: none;
  border: 2px solid #eda7a7; /* 變成粉色邊框 */
  box-shadow: 0 0 5px rgba(248, 185, 190, 0.8);
  transition: all 0.1s ease-in-out; /* 平滑過渡效果 */
}

/* 關閉按鈕 */
.mobile-search .close-search {
  background: transparent !important;
  border: none;
  color: white;
  font-size: 20px;
  cursor: pointer;
}
.nav-link {
  transition: none;
}
/* =============================================== */
/* ====================       ==================== */
/* ==================== media ==================== */
/* ====================       ==================== */
/* =============================================== */
@media screen and (min-width: 769px) {
  .mobile-search {
    transform: translateY(-105%) !important;
  }
  .dropdown-toggle {
    white-space: nowrap;
  }
  .dropdown-toggle::after {
    display: inline-block;
    margin-left: 0.255em;
    vertical-align: 1rem;
    content: "";
    border-top: 0.3em solid var(--primary-txt);
    border-right: 0.3em solid transparent;
    border-bottom: 0;
    border-left: 0.3em solid transparent;
  }
}
@media screen and (max-width: 768px) {
  .nav-center .search {
    display: none;
  }
  .nav-right .nav-group .sm-search {
    display: flex;
    padding-left: 12px;
  }

  .nav-right .nav-group {
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: end;
    align-items: center;
    gap: 0.01em;
  }

  .nav-right .nav-group .notification i,
  .nav-right .nav-group .theme i,
  .nav-right .nav-group .sm-search i {
    padding: 0.5rem 0.1rem;
  }
  .nav-right .nav-group .user i {
    padding: 0.5rem 0.5rem;
  }
}
@media screen and (max-width: 590px) {
  .nav-center .search {
    display: none;
  }
  .nav-right .nav-group .sm-search {
    display: flex;
    padding-left: 12px;
  }
}