/*====================================
# nav
==================================== */
.main-nav {
  background-image: linear-gradient(130deg, var(--color4) 30%, var(--main-color) 30%);
  background-color: var(--color4);
  min-height: 65px;
}

@media (min-width:1300px) {
  .main-nav {
    padding: 0 7rem;
  }
}

.main-nav .navbar-nav .nav-link {
  color: var(--brown);
  border-radius: 30px;
  padding: 0.2rem 0 0;
  margin: auto 1rem;
  font-size: 19px;
  position: relative;
  transition: .2s ease-in-out;
}

@media (max-width:1660px) {
  .main-nav .navbar-nav .nav-link {
    margin: auto 0.8rem;
  }
}

@media (max-width:1460px) {
  .main-nav .navbar-nav .nav-link {
    margin: auto 0.7rem;
  }
}

@media (max-width:1427px) {
  .main-nav .navbar-nav .nav-link {
    margin: auto 0.6rem;
    font-size: 17px;
  }
}

@media (max-width:1324px) {
  .main-nav .navbar-nav .nav-link {
    margin: auto 0.5rem;
  }
}

@media (max-width:1300px) {
  .main-nav .navbar-nav .nav-link {
    font-size: 17px;
  }
}

.dropdown-menu {
  margin-bottom: 10px;
}

.main-nav .navbar-nav .nav-item>.nav-link:before {
  content: "";
  display: block;
  position: absolute;
  height: 4px;
  bottom: -5px;
  right: 0;
  left: 0;
  z-index: -1;
  background-color: var(--color4);
  transition: transform .3s ease;
  transform: scaleX(0);
  transform-origin: bottom right;
}

.main-nav .navbar-nav .nav-link:hover,
.main-nav .navbar-nav .nav-link:focus {
  color: var(--brown);
}

.main-nav .navbar-nav .nav-item>.nav-link:hover:before {
  transform: scaleX(1);
  transform-origin: bottom left;
}

.main-nav .navbar-nav .signup-link {
  padding: 2px 20px;
  color: #212121;
  border-radius: 50px;
  background-color: var(--lightY);
  box-shadow: 0 1px 7px #5da39460;
  border: 1px solid #fff;
  font-size: 18px;
}

.main-nav .navbar-nav .signup-link:hover,
.main-nav .navbar-nav .signup-link:focus {
  color: #fff;
  background-color: var(--color4);

}

.main-nav .navbar-nav .nav-item>.signup-link:before {
  height: 0;
  bottom: 0;
  background-color: none;
}

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

.navbar-brand img {
  width: 200px;
}


@media (max-width:1427px) {
  .main-nav .navbar-nav .signup-link {
    box-shadow: 0 1px 5px #4830a160;
    font-size: 17px;
  }
}

@media (max-width:1300px) {
  .navbar-brand img {
    width: 150px;
  }
}

@media (max-width:1200px) {
  .main-nav {
    background-image: linear-gradient(130deg, var(--color4) 20%, var(--main-color) 20%);
  }
}

@media (max-width:992px) {
  .main-nav {
    background-image: none;
  }

  .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;
  }
}

@media (max-width:576px) {
  .navbar-brand img {
    width: 250px;
  }
}

/*====================================
# 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%;
}