/*
========================================
  Header
========================================
*/
:root {
  --redfrog-navbar-height: 90px;
  --redfrog-navbar-background-color: rgba(0, 0, 0, 0.6);
}

header {
  position: fixed;
  /* top: 0; */
  /* left: 0; */
  width: 100%;
  z-index: 1030;
}

header nav.navbar {
  position: relative;
  /* @no_need: cuz navbar-nav height is set directly */
  /* display: flex; */
  /* align-items: stretch; */
  /* @~~~I: cannot use flex-direction: column; */
  /* flex-direction: column; */
  /* justify-content: stretch; */
  /* determine height by navbar-nav */
  /* height: var(--redfrog-navbar-height); */
  padding: 0;
}

/*
========================================
  3-Panel Layout
========================================
*/

header nav.navbar .redfrog-navbar-container {
  /* >" its height will be `auto`. This means it will shrink-to-fit its content. */
  /* @~~~I: just flex all the way... */
  /* height: 100%; */
  /* @: dk need expand width */
  width: 100%;
  /* flex: 1; */
  position: relative;
  display: grid;
  --navbar-grid-template-columns: 1fr 8fr 1fr;
  grid-template-columns: var(--navbar-grid-template-columns);
  /* justify-content: stretch; */
  /* align-items: stretch; */
  /* justify-items: stretch; */
}

header.lang-chinese nav.navbar .redfrog-navbar-container {
  --navbar-grid-template-columns: 3.5fr 8fr 3.5fr;
}

header nav.navbar .redfrog-navbar-container .redfrog-navbar-panel-left {
  justify-self: start;
  display: flex;
  align-items: center;
}

header nav.navbar .redfrog-navbar-container .redfrog-navbar-panel-middle {
  /* @no_need: cuz navbar-nav height is set directly */
  /* display: flex; */
  /* align-items: center; */
}

header nav.navbar .redfrog-navbar-container .redfrog-navbar-panel-right {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 2rem;
}

/*
========================================
  Desktop Navbar
========================================
*/
@media (min-width: 768px) {
  header .navbar-nav {
    /* header .offcanvas-body .navbar-nav { */
    position: relative;
    /* display: grid; */
    /* grid-template-columns: repeat(auto-fit, minmax(20px, 1fr)); */
    display: flex;
    justify-content: space-around;
    /* @: height is determined here instead, cuz offcanvas is cutting off the direction height connection */
    height: var(--redfrog-navbar-height);
    /* @: dk need expand width */
    width: 100%;
    /* flex: 1; */
  }

  header .navbar-nav .nav-item {
    display: flex;
    /* @no_need: just let child stretch and take height, and do center at final step */
    /* align-items: center; */
  }

  header .navbar-nav .nav-item .nav-link {
    display: flex;
    align-items: center;
    justify-content: center;
    /* @no_need: let flex row stretch do the job */
    /* height: 100%; */
    /* @need: it wont stretch, though parent is flex... */
    width: 100%;
  }

  /* 
  @note: only apply to the first level dropdown menu
  dont do for 2nd level dropdown menu (ie: dropdown-submenu)
  */
  header .navbar-nav .nav-item.dropdown>.dropdown-menu {
    /* 
    @note: This positions the dropdown directly below the navbar item. 
    this is needed if hover is used
    */
    top: 100%;
  }
}

/* @note: both hover / click are supported; where click makes the menu persistent; */
/* Show dropdown on hover, not only on click */
header .nav-item.dropdown:hover>.dropdown-menu {
  display: block;
}

header .dropend.dropdown-submenu:hover>.dropdown-menu {
  display: block;
  top: 0;
  left: 100%;
}

/* 
/~
========================================
  Horizontal Dropdown Menu Styles (Desktop View)
========================================
~/

/~ for aligning the middle container ~/
.redfrog-dropdown-menu-content-container {
  grid-template-columns: var(--navbar-grid-template-columns);
}
*/

/*
========================================
  Mobile Navbar
========================================
correspond to <nav class="navbar navbar-expand-md">
*/
@media (max-width: 767.98px) {
  header .offcanvas .redfrog-navbar-panel-middle {
    display: flex;
    justify-content: flex-end;
  }

  /* makes the nav item vertically placed */
  header .offcanvas .navbar-nav {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: flex-start;
    /* height: auto; */
  }

  :root {
    --redfrog-navbar-height: 60px;
  }

  header nav.navbar {
    /* set height, otherwise this is auto is min-content */
    height: var(--redfrog-navbar-height);
  }

  header .offcanvas .nav-item {
    width: 100%;
  }

  header .offcanvas.offcanvas-end {
    --bs-offcanvas-width: 280px;
  }
}

/* 
========================================
  Style Only, Not Structure Related
========================================
vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
*/

header {
  background-color: var(--redfrog-navbar-background-color);
  padding: 0 1rem;
}

@media (min-width: 768px) {
  header {
    /* box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05); */
    /* transition: background-color .3s ease-in-out; */
    /* 
    cannot apply to mobile width... 
    cause dropdown lose the blur...
    */
    /* backdrop-filter: blur(3px); */
    /* -webkit-backdrop-filter: blur(3px); */
  }

  header.redfrog-at-top {
    background-color: transparent;
  }

  /* 
  header .navbar-nav>.nav-item>.nav-link {
    text-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
  } */

  /* lv1 item */
  header .navbar-nav .nav-item .nav-link {
    color: white;
    font-weight: 400;
    text-align: center;
  }

  header .navbar-nav .nav-item:hover .nav-link {
    color: var(--jesloo-primary-color-light);
  }

  /* lv1 menu */
  header .navbar-nav .nav-item:hover {
    /* background-color: rgba(220, 220, 220, 0.1); */
    /* color: var(--jesloo-primary-color); */
    /* border-bottom: 2px solid var(--jesloo-primary-color); */
  }

  /*
  header .navbar-nav .nav-item.dropdown>.dropdown-menu {
    /~ background-color: var(--jesloo-primary-color-transparent); ~/
    background-color: rgb(6 30 48 / 40%);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
  }
  */

  /* lv1 menu */
  header .navbar-nav .nav-item.dropdown>.dropdown-menu .redfrog-dropdown-menu-content-list li a.dropdown-item {
    padding: 0.5rem 1rem;
    font-size: 18px;
  }

  /* header padding */
  header nav.navbar .redfrog-navbar-panel-left {
    padding-left: 2rem;
  }

  header nav.navbar .redfrog-navbar-panel-right {
    padding-right: 2rem;
  }
}

@media (min-width: 1899.98px) {
  header.lang-chinese nav.navbar .redfrog-navbar-panel-left {
    padding-left: 12rem;
  }

  header.lang-chinese nav.navbar .redfrog-navbar-panel-right {
    padding-right: 12rem;
  }
}

/* lv1 menu */
header .navbar-nav .nav-item.dropdown>.dropdown-menu .redfrog-dropdown-menu-content-list {
  /* grid-column: 2 / 3; */
  /* grid-template-columns: repeat(auto-fit, minmax(20px, 1fr)); */
  list-style: none;
  /* padding: var(--bs-dropdown-padding-y) var(--bs-dropdown-padding-x); */
  padding: 0;
  margin: 0;
}

/* lv1 item */
header .navbar-nav .nav-item .nav-link {
  /* allow wrap when nav item text is too long, especially for English */
  white-space: normal;
  font-size: 18px;
}

/* remove the arrow of dropdown item */
header .dropdown-toggle::after {
  /* vertical-align: middle; */
  display: none;
}

/* remove the space between the dropdown menu and the navbar */
header .dropdown-menu[data-bs-popper] {
  /* margin-top: 0; */
  --bs-dropdown-spacer: 0;
}

header nav.navbar .redfrog-navbar-container .navbar-brand img {
  max-height: 70px;
  transition: max-height 0.3s ease-in-out;
}

@media (max-width: 767.98px) {
  header nav.navbar .redfrog-navbar-container .redfrog-navbar-panel-middle {
    display: flex;
    justify-content: flex-end;
  }

  header nav.navbar .navbar-toggler {
    filter: invert(1);
    background-color: rgba(0, 0, 0, 0.2);
    margin-left: 1rem;
  }
}

/*
===================
  Other adaptive width
===================
// // common for 2K screen 
// @media (min-width: 1920.02px) {
// // common for 1920x1080 PC screen 
// @media (max-width: 1399.98px) {
// // common for tablet width / smaller screen
// @media (max-width: 991.98px) {
// // common for mobile width 
// @media (max-width: 767.98px) {
*/

@media (max-width: 1399.98px) {
  header nav.navbar .redfrog-navbar-container {
    --navbar-grid-template-columns: 1fr 8fr 1fr;
  }

  header .navbar-nav .nav-item.dropdown>.dropdown-menu .redfrog-dropdown-menu-content-list li a.dropdown-item {
    font-size: 16px;
  }

  header .navbar-nav .nav-item .nav-link {
    font-size: 16px;
  }

  header nav.navbar .redfrog-navbar-container .redfrog-navbar-panel-left {
    padding-left: revert;
  }

  header nav.navbar .redfrog-navbar-container .redfrog-navbar-panel-right {
    padding-right: revert;
  }

  header nav.navbar .redfrog-navbar-container .navbar-brand img {
    max-height: 30px;
  }
}

@media (max-width: 991.98px) {
  header .navbar-nav .nav-item.dropdown>.dropdown-menu .redfrog-dropdown-menu-content-list li a.dropdown-item {
    font-size: 12px;
  }

  header .navbar-nav .nav-item .nav-link {
    font-size: 12px;
  }
}

/* 
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
========================================
  Style Only, Not Structure Related
========================================
*/


/*
========================================
  Header Language Switcher
========================================
*/

header .language-switcher {
  color: white;
}

header .language-switcher a {
  display: flex;
  align-items: center;
  gap: 0.2rem;
}

header .language-switcher a:hover {
  color: var(--jesloo-primary-color-light);
}

/*
========================================
  Header Login to Management System
========================================
*/
header .login-to-management-system {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  min-width: 45px;
  /* background-color: #5eb95e; */
  background-color: transparent;
  /* border: 1px solid #4ca34c; */
  /* color: #4ca34c; */
  color: var(--jesloo-primary-color-light);
  border: 1px solid var(--jesloo-primary-color-light);
  padding: 0.25rem 0.5rem;
  border-radius: 0.25rem;
  text-decoration: none;
  transition: background-color 0.3s ease-in-out, color 0.3s ease-in-out;
  text-align: center;
}

header .login-to-management-system:hover {
  /* background-color: #4ca34c; */
  background-color: var(--jesloo-primary-color);
  border: 1px solid var(--jesloo-primary-color);
  color: white;
}

/* 
@media (min-width: 1399.98px) {
  header .login-to-management-system {
    margin-left: 2rem;
  }
} */

@media (max-width: 1200px) {
  header .login-to-management-system {
    font-size: 8px;
    padding: 2px 4px;
  }
}

/* 
========================================
  Offcanvas Debug
========================================
*/

/* force offcanvas to be visible for debugging */
/* 
header :is(.offcanvas, .offcanvas-header, .offcanvas-body) {
  visibility: visible;
  transform: none !important;
} */
/*
/~
========================================
  Dropdown Animation
========================================
~/

@keyframes fadeInDown {
  0% {
    opacity: 0;
    transform: translateY(-10px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}*/