/*=============== VARIABLES CSS ===============*/
:root {
    --header-height: 3.5rem;
  
    /*========== Colors ==========*/
    /*Color mode HSL(hue, saturation, lightness)*/
    --black-color: hsl(220, 24%, 12%);
    --black-color-light: hsl(220, 24%, 15%);
    --black-color-lighten: hsl(220, 20%, 18%);
    --white-color: #fff;
    --body-color: hsl(220, 100%, 97%);
  
    /*========== Font and typography ==========*/
    /*.5rem = 8px | 1rem = 16px ...*/
    --normal-font-size: .938rem;
  
    /*========== Font weight ==========*/
    --font-regular: 400;
    --font-semi-bold: 600;
  
    /*========== z index ==========*/
    --z-tooltip: 10;
    --z-fixed: 110;
  }
  
  /*========== Responsive typography ==========*/
  @media screen and (min-width: 1024px) {
    :root {
      --normal-font-size: 1rem;
    }
  }
  
 
  

  /*=============== REUSABLE CSS CLASSES ===============*/
  .container {
    max-width: 1120px;
    margin-inline: 1.5rem;
  }
  
  /*=============== HEADER ===============*/
  .header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--black-color);
    box-shadow: 0 2px 16px hsla(220, 32%, 8%, .3);
    z-index: var(--z-fixed);
  }
  
  /*=============== NAV ===============*/
  .nav {
    height: var(--header-height);
  }
  
  .nav__logo, 
  .nav__burger, 
  .nav__close {
    color: var(--white-color);
  }
  
  .nav__data {
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  
  .nav__logo {
    display: inline-flex;
    align-items: center;
    column-gap: .25rem;
    font-weight: var(--font-semi-bold);
    /* Color highlighting when pressed on mobile devices */
    /*-webkit-tap-highlight-color: transparent;*/
  }
  
  .nav__logo i {
    font-weight: initial;
    font-size: 1.25rem;
  }
  
  .nav__toggle {
    position: relative;
    width: 32px;
    height: 32px;
  }
  
  .nav__burger, 
  .nav__close {
    position: absolute;
    width: max-content;
    height: max-content;
    inset: 0;
    margin: auto;
    font-size: 1.25rem;
    cursor: pointer;
    transition: opacity .1s, transform .4s;
  }
  
  .nav__close {
    opacity: 0;
  }
  
  /* Navigation for mobile devices */
  @media screen and (max-width: 1118px) {
    .nav__menu {
      position: absolute;
      left: 0;
      top: 2.5rem;
      width: 100%;
      height: calc(100vh - 3.5rem);
      overflow: auto;
      pointer-events: none;
      opacity: 0;
      transition: top .4s, opacity .3s;
    }
    .nav__menu::-webkit-scrollbar {
      width: 0;
    }
    .nav__list {
      background-color: var(--black-color);
      padding-top: 1rem;
      z-index: 110;
    }
  }
  
  .nav__link {
    color: var(--white-color);
    background-color: var(--black-color);
    font-weight: var(--font-semi-bold);
    padding: 1.25rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color .3s;
  }
  
  .nav__link:hover {
    background-color: var(--black-color-light);
  }
  
  /* Show menu */
  .show-menu {
    opacity: 1;
    top: 3.5rem;
    pointer-events: initial;
  }
  
  /* Show icon */
  .show-icon .nav__burger {
    opacity: 0;
    transform: rotate(90deg);
  }
  .show-icon .nav__close {
    opacity: 1;
    transform: rotate(90deg);
  }
  
  /*=============== DROPDOWN ===============*/
  .dropdown__item {
    cursor: pointer;
  }
  
  .dropdown__arrow {
    font-size: 1.25rem;
    font-weight: initial;
    transition: transform .4s;
  }
  
  .dropdown__link, 
  .dropdown__sublink {
    padding: 1.25rem 1.25rem 1.25rem 2.5rem;
    color: var(--white-color);
    background-color: var(--black-color-light);
    display: flex;
    align-items: center;
    column-gap: .5rem;
    font-weight: var(--font-semi-bold);
    transition: background-color .3s;
  }
  
  .dropdown__link i, 
  .dropdown__sublink i {
    font-size: 1.25rem;
    font-weight: initial;
  }
  
  .dropdown__link:hover, 
  .dropdown__sublink:hover {
    background-color: var(--black-color);
  }
  
  .dropdown__menu, 
  .dropdown__submenu {
    max-height: 0;
    overflow: hidden;
    transition: max-height .4s ease-out;
  }
  
  /* Show dropdown menu & submenu */
  .dropdown__item:hover .dropdown__menu, 
  .dropdown__subitem:hover > .dropdown__submenu {
    max-height: 1000px;
    transition: max-height .4s ease-in;
  }
  
  /* Rotate dropdown icon */
  .dropdown__item:hover .dropdown__arrow {
    transform: rotate(180deg);
  }
  
  /*=============== DROPDOWN SUBMENU ===============*/
  .dropdown__add {
    margin-left: auto;
  }
  
  .dropdown__sublink {
    background-color: var(--black-color-lighten);
  }
  
  /*=============== BREAKPOINTS ===============*/
  /* For small devices */
  @media screen and (max-width: 340px) {
    .container {
      margin-inline: 1rem;
    }
  
    .nav__link {
      padding-inline: 1rem;
    }
  }
  
  /* For large devices */
  @media screen and (min-width: 1118px) {
    .container {
      margin-inline: auto;
    }
  
    .nav {
      height: calc(var(--header-height));
      display: flex;
      justify-content: space-between;
    }
    .nav__toggle {
      display: none;
    }
    .nav__list {
      height: 100%;
      display: flex;
      column-gap: 3rem;
      
    }
    .nav__link {
      height: 100%;
      padding: 0;
      justify-content: initial;
      column-gap: .25rem;
    }
    .nav__link:hover {
      background-color: transparent;
    }
  
    .dropdown__item, 
    .dropdown__subitem {
      position: relative;
    }
  
    .dropdown__menu, 
    .dropdown__submenu {
      max-height: initial;
      overflow: initial;
      position: absolute;
      left: 0;
      top: 6rem;
      opacity: 0;
      pointer-events: none;
      transition: opacity .3s, top .3s;
    }
  
    .dropdown__link, 
    .dropdown__sublink {
      padding-inline: 1rem 3.5rem;
    }
  
    .dropdown__subitem .dropdown__link {
      padding-inline: 1rem;
    }
  
    .dropdown__submenu {
      position: absolute;
      left: 100%;
      top: .5rem;
    }
  
    /* Show dropdown menu */
    .dropdown__item:hover .dropdown__menu {
      opacity: 1;
      top: 3.5rem;
      pointer-events: initial;
      transition: top .3s;
    }
  
    /* Show dropdown submenu */
    .dropdown__subitem:hover > .dropdown__submenu {
      opacity: 1;
      top: 0;
      pointer-events: initial;
      transition: top .3s;
    }
  }