/*====================================
# nav
==================================== */
.main-nav {
  padding: 0 20px;
  background-color: rgba(35, 41, 70, 0.95);
  min-height: 65px;
}

.main-nav .navbar-nav .nav-link {
  color: #ffffff;
  transition: 0.3s ease-in-out;
  padding: 10px 20px;
}

.main-nav .navbar-nav .nav-link:hover,
.main-nav .navbar-nav .nav-link:focus {
  color: #00FFFF;
}


/*****  報名按鈕 *****/
.signup-link {
  --border-width: .125em;
  --curve-size: .5em;
  --blur: 30px;
  position: relative;
  clip-path: polygon(
      /* Top-left */
      0% var(--curve-size),

      var(--curve-size) 0,
      /* top-right */
      100% 0,
      100% calc(100% - var(--curve-size)),

      /* bottom-right 1 */
      calc(100% - var(--curve-size)) 100%,
      /* bottom-right 2 */
      0 100%);
  transition: color 250ms;
}

.signup-link::after,
.signup-link::before {
  content: '';
  position: absolute;
  inset: 0;
}

.signup-link::before {
  background: var(--bgLightGradient);
  background-size: 300% 300%;
  animation: move-bg7234 5s ease infinite;
  z-index: -2;
}

@keyframes move-bg7234 {
  0% {
    background-position: 31% 0%
  }

  50% {
    background-position: 70% 100%
  }

  100% {
    background-position: 31% 0%
  }
}

.signup-link::after {
  background: #212121;
  z-index: -1;
  clip-path: polygon(
      /* Top-left */
      var(--border-width) calc(var(--curve-size) + var(--border-width) * .5),

      calc(var(--curve-size) + var(--border-width) * .5) var(--border-width),

      /* top-right */
      calc(100% - var(--border-width)) var(--border-width),

      calc(100% - var(--border-width)) calc(100% - calc(var(--curve-size) + var(--border-width) * .5)),

      /* bottom-right 1 */
      calc(100% - calc(var(--curve-size) + var(--border-width) * .5)) calc(100% - var(--border-width)),
      /* bottom-right 2 */
      var(--border-width) calc(100% - var(--border-width)));
  transition: clip-path 500ms;
}

.signup-link:where(:hover, :focus)::after {
  clip-path: polygon(
      /* Top-left */
      calc(100% - var(--border-width)) calc(100% - calc(var(--curve-size) + var(--border-width) * 0.5)),

      calc(100% - var(--border-width)) var(--border-width),

      /* top-right */
      calc(100% - var(--border-width)) var(--border-width),

      calc(100% - var(--border-width)) calc(100% - calc(var(--curve-size) + var(--border-width) * .5)),

      /* bottom-right 1 */
      calc(100% - calc(var(--curve-size) + var(--border-width) * .5)) calc(100% - var(--border-width)),

      /* bottom-right 2 */
      calc(100% - calc(var(--curve-size) + var(--border-width) * 0.5)) calc(100% - var(--border-width)));
  transition: 200ms;
}

/*****  /報名按鈕 *****/

.custom-toggler.navbar-toggler {
  border: none;
}

.navbar-brand img {
  height: 4rem;
}

.main-nav .dropdown-menu {
  border: none;
  background-color: rgba(0, 0, 0, 0.6);
  border-radius: 0;
}

.main-nav .dropdown-menu .dropdown-item {
  color: #ffffff;
}

.main-nav .dropdown-menu .dropdown-item:hover {
  background-color: rgba(242, 68, 114, 0.7);
}

@media (max-width:992px) {
  .main-nav {
    position: fixed;
    width: 100%;
    z-index: 100;
  }

  .main-nav .navbar-nav {
    width: 100%;
    height: 100vh;
    text-align: center;
  }

  .main-nav .navbar-nav .nav-link {
    padding: 15px 20px;
  }

  .signup-link {
    border-radius: 30px;
  }


}

/*====================================
# openbtn 小版按鈕
==================================== */
.openbtn {
  position: relative;
  cursor: pointer;
  width: 50px;
  height: 50px;
  border-radius: 5px;
}

/*======= 按鈕內側 =======*/
.openbtn span {
  display: inline-block;
  transition: all .4s;
  position: absolute;
  left: 14px;
  height: 3px;
  border-radius: 2px;
  background: #fff;
  width: 45%;
}

.openbtn span:nth-of-type(1) {
  top: 15px;
}

.openbtn span:nth-of-type(2) {
  top: 23px;
}

.openbtn span:nth-of-type(3) {
  top: 31px;
}

/*======= active 線動作 =======*/

.openbtn.active span:nth-of-type(1) {
  top: 18px;
  left: 18px;
  transform: translateY(6px) rotate(-45deg);
  width: 30%;
}

.openbtn.active span:nth-of-type(2) {
  opacity: 0;
}

.openbtn.active span:nth-of-type(3) {
  top: 30px;
  left: 18px;
  transform: translateY(-6px) rotate(45deg);
  width: 30%;
}