/* -----------------------------------------------------------------------------

  CIRCLE NAV COMPONENT

----------------------------------------------------------------------------- */
/**
 * This is the actual nav component. It consists of a nav element with an
 * unordered list inside, and also a button to toggle the actual navigation.
 * It's fixed to the bottom-right of the screen, and each of the items are
 * positioned absolutely inside the parent nav tag. The default set up above is
 * 5 navigation items. Because all the transforms and such are calculated wrt
 * this number, you'll need to edit it accordingly depending on how many items
 * you decide to put in the markup.
 * 
 * Example markup:
 *
 * <nav class="c-circle-nav">
 *   <ul class="c-circle-nav__items">
 *     <li class="c-circle-nav__item">
 *       <a class="c-circle-nav__link"></a>
 *     </li>
 *     <li class="c-circle-nav__item">
 *       <a class="c-circle-nav__link"></a>
 *     </li>
 *     ...
 *   </ul>
 * </nav>
 */
.c-circle-nav {
  position: fixed;
  top: 14px;
  right: 14px;
  z-index: 1000;
  width: 50px;
  height: 50px;
  border-radius: 25px;
}
@media (min-width: 9999px) and (min-height: 9999px) {
  .c-circle-nav {
    width: 100px;
    height: 100px;
    border-radius: 50px;
  }
}
.c-circle-nav__items {
  display: block;
  list-style: none;
  position: absolute;
  z-index: 90;
  margin: 0;
  padding: 0;
}

.c-circle-nav__item {
  display: block;
  position: absolute;
  top: 0;
  left: 0;
  width: 50px;
  height: 50px;
  border-radius: 25px;
  opacity: 0;
  transition-property: transform, opacity;
  transition-duration: 0.3s, 0.3s;
  transition-timing-function: cubic-bezier(0.35, -0.59, 0.47, 0.97);
  font-size: 25px;
}
@media (min-width: 9999px) and (min-height: 9999px) {
  .c-circle-nav__item {
    width: 100px;
    height: 100px;
    border-radius: 50px;
  }
}
/**
 * Transisition delays at the default state.
 */
.c-circle-nav__item:nth-child(1) {
  transition-delay: 0.4s;
}

.c-circle-nav__item:nth-child(2) {
  transition-delay: 0.3s;
}

.c-circle-nav__item:nth-child(3) {
  transition-delay: 0.2s;
}

.c-circle-nav__item:nth-child(4) {
  transition-delay: 0.1s;
}

.c-circle-nav__item:nth-child(5) {
  transition-delay: 0s;
}

/**
 * We're using the .is-active class, which is added to the nav via JavaScript.
 * Once the nav is active, the items inherit the properties below. We will
 * manually write out the transform properties for first and last items, as we
 * already know their position. For all items in between though, we'll use some
 * polar-to-cartesian math and some Sass functions to get the positioning.
 */
.c-circle-nav.is-active .c-circle-nav__item {
  transition-timing-function: cubic-bezier(0.35, 0.03, 0.47, 1.59);
}

.c-circle-nav.is-active .c-circle-nav__item:nth-child(1) {
  transition-delay: 0s;
  transform: translate(-165px, 0);
}
@media (min-width: 9999px) and (min-height: 9999px) {
  .c-circle-nav.is-active .c-circle-nav__item:nth-child(1) {
    transform: translate(-330px, 0);
  }
}
.c-circle-nav.is-active .c-circle-nav__item:nth-child(2) {
  transition-delay: 0.1s;
  transform: translate(-153px, 63px);
}
@media (min-width: 9999px) and (min-height: 9999px) {
  .c-circle-nav.is-active .c-circle-nav__item:nth-child(2) {
    transform: translate(-305px, 126px);
  }
}
.c-circle-nav.is-active .c-circle-nav__item:nth-child(3) {
  transition-delay: 0.2s;
  transform: translate(-117px, 116px);
}
@media (min-width: 9999px) and (min-height: 9999px) {
  .c-circle-nav.is-active .c-circle-nav__item:nth-child(3) {
    transform: translate(-234px, 233px);
  }
}
.c-circle-nav.is-active .c-circle-nav__item:nth-child(4) {
  transition-delay: 0.3s;
  transform: translate(-64px, 152px);
}
@media (min-width: 9999px) and (min-height: 9999px) {
  .c-circle-nav.is-active .c-circle-nav__item:nth-child(4) {
    transform: translate(-127px, 304px);
  }
}
.c-circle-nav.is-active .c-circle-nav__item:nth-child(5) {
  transition-delay: 0.4s;
  transform: translate(0, 165px);
}
@media (min-width: 9999px) and (min-height: 9999px) {
  .c-circle-nav.is-active .c-circle-nav__item:nth-child(5) {
    transform: translate(0, 330px);
  }
}
/**
 * Apart from the transform properties, we'll also make sure the items get
 * the correct opacity.
 */
.c-circle-nav.is-active .c-circle-nav__item {
  opacity: 1;
}

/**
 * Let's style the links now. This is just boilerplate stuff, and of course,
 * you'll probably want to change up the icons to match your needs. In any case,
 * we'll do it here for the sake of completion.
 */
.c-circle-nav__link {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: 25px;
  box-shadow: inset 0 0 0 2px #fff;
  padding: 10px 0;
  text-align: center;
  line-height: 1em;
  font-size: 11px;
  color: #fff;
}
@media (min-width: 9999px) and (min-height: 9999px) {
  .c-circle-nav__link {
    border-radius: 50px;
  }
}
.c-circle-nav__link span.fa {
  display: block;
  font-size: 25px;
  color: #60bb46;
  margin: 2px 0 13px;
}

.c-circle-nav__link img {
  display: block;
  max-width: 100%;
  height: auto;
}

.c-circle-nav__link:hover {
  color: #fff;
}
.c-circle-nav__link:hover span {
  color: #68adb8;
}

/* -----------------------------------------------------------------------------

  THE TOGGLE COMPONENT

----------------------------------------------------------------------------- */
/**
 * The toggle is a button element, and as such requires some resets that are
 * unique to buttons. This button also inherits some funky stuff from my
 * CSS animating hamburger menu icons demo, which can be found at this url:
 * https://github.com/callmenick/Animating-Hamburger-Icons
 */
.c-circle-nav__toggle {
  display: block;
  position: absolute;
  z-index: 100;
  margin: 0;
  padding: 0;
  width: 50px;
  height: 50px;
  background-color: #60bb46;
  font: inherit;
  font-size: 0;
  text-indent: -9999px;
  border-radius: 25px;
  transition: background 0.3s;
  /* reset some browser defaults */
  cursor: pointer;
  border: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  box-shadow: none;
}
@media (min-width: 9999px) and (min-height: 9999px) {
  .c-circle-nav__toggle {
    width: 100px;
    height: 100px;
    border-radius: 50px;
  }
}
.c-circle-nav__toggle:hover,
.c-circle-nav__toggle:focus,
.c-circle-nav__toggle.is-active {
  outline: none;
  background-color: #3a712a;
}

.c-circle-nav__toggle span,
.c-circle-nav__toggle span::before,
.c-circle-nav__toggle span::after {
  display: block;
  position: absolute;
  height: 4px;
  background: #fff;
  border-radius: 1px;
}
@media (min-width: 9999px) and (min-height: 9999px) {
  .c-circle-nav__toggle span,
  .c-circle-nav__toggle span::before,
  .c-circle-nav__toggle span::after {
    height: 8px;
    border-radius: 2px;
  }
}
.c-circle-nav__toggle span {
  top: 23px;
  left: 10px;
  right: 10px;
  transition: background 0.3s;
}
@media (min-width: 9999px) and (min-height: 9999px) {
  .c-circle-nav__toggle span {
    top: 46px;
    left: 20px;
    right: 20px;
  }
}
.c-circle-nav__toggle span::before,
.c-circle-nav__toggle span::after {
  left: 0;
  width: 100%;
  content: "";
  transition-duration: 0.3s, 0.3s;
  transition-delay: 0.3s, 0s;
}

.c-circle-nav__toggle span::before {
  top: -8px;
  transition-property: top, transform;
}
@media (min-width: 9999px) and (min-height: 9999px) {
  .c-circle-nav__toggle span::before {
    top: -16px;
  }
}
.c-circle-nav__toggle span::after {
  bottom: -8px;
  transition-property: bottom, transform;
}
@media (min-width: 9999px) and (min-height: 9999px) {
  .c-circle-nav__toggle span::after {
    bottom: -16px;
  }
}
/* button active state */
.c-circle-nav__toggle.is-active span {
  background: none;
}

.c-circle-nav__toggle.is-active span::before {
  top: 0;
  transform: rotate(45deg);
  transition-delay: 0s, 0.3s;
}

.c-circle-nav__toggle.is-active span::after {
  bottom: 0;
  transform: rotate(-45deg);
  transition-delay: 0s, 0.3s;
}

/* -----------------------------------------------------------------------------

  THE MASK COMPONENT

----------------------------------------------------------------------------- */
/**
 * Here's the mask component, which actually gets created and inserted to the 
 * DOM via JavaScript. It simply acts as an overlay to draw attention to the 
 * navigation when it is active. It also uses the .is-acvite state class.
 */
.c-mask {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 999;
  visibility: hidden;
  opacity: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.8);
  transition: opacity 0.3s, visibility 0.3s;
}

.c-mask.is-active {
  opacity: 1;
  visibility: visible;
}