/*
  Il file stilizza gli elementi presenti nell'header di tutte le pagine del sito, in particolare il logo, la navbar e l'hamburger.
*/

header{
  position: absolute;
  width: 100%;
  /* height: 80px; */
  top: 0;
  left: 0;
  padding: 0 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 100;
}

/* ========== Logo. ========== */

.logo{
  width: 220px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition-duration: .8s;
  transition-property: transform, opacity;
  transform-origin: top left;
  transition-timing-function: ease;
  z-index: 100;
}

.logoNascosto{
  transform: scale(0);
  opacity: 0;
  transform-origin: left top;
}

.logo > img{
  display: inline-flex;
  /* height: 40px; */
  height: 60px;
  width: auto;
}

.logo > div{
  font-size: 16px;
  color: #fff;
}

.logo i{
  font-size: 75%;
  margin-right: 2px;
}

.logo span{
  font-size: 70%;
}

/* ========== Navbar. ========== */
/* header > nav{
  height: auto;
} */

header > nav ul{
  list-style: none;
  width: 500px;
  height: 80px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

header > nav a{
  position: relative;
  min-width: 50px;
  height: 50px;
  font-size: 14px;
  text-decoration: none;
  color: #fff;
  display: flex;
  justify-content: center;
  align-items: center;
  transition-property: transform, opacity; /* Animazione. */
  transition-duration: .8s; /* Animazione. */
  transition-delay: calc(.1s * var(--i));
  transition-timing-function: ease; /* Animazione. */
}

header .menuNascosto{
  transform: translate(50px, -100px);
  opacity: 0;
  overflow: hidden;
}

header > nav a::before{
  content: "";
  position: absolute;
  left: -10%;
  bottom: 6px;
  width: 0;
  height: 3px;
  border-radius: 2px;
  background-color: #c610d0;
  z-index: 20;
  transition-property: width; /* Animazione. */
  transition-duration: .5s; /* Animazione. */
  transition-timing-function: ease; /* Animazione. */
}

header > nav a:hover::before{
  width: 120%;
}

/* Menù a cascata. */
/* .displayMenu{
  height: auto;
} */

/* Hamburger. */

.hamburger-wrapper{
  display: none;
  position: absolute;
  top: 0;
  right: 30px;
  width: 60px;
  height: 60px;
  background-color: transparent;
  /* border-color: transparent; */
  border: none;
  cursor: pointer;
}

.hamburger-icon{
  position: relative;
  width: 30px;
  height: 30px;
  /* background-color: transparent; */
  margin: auto;
  display: flex;
  align-items: center;
  transform: rotate(0);
  /* transition: 1s; */ /* Animazione */
  transition-property: transform; /* Animazione. */
  transition-duration: 1s; /* Animazione. */
  transition-timing-function: ease; /* Animazione. */
}

.hamburger-wrapper.active .hamburger-icon{
  transform: rotate(315deg);
}

.hamburger-icon span{
  position: absolute;
  display: block;
  height: 4px;
  background-color: #aaa;
  border-radius: 2px;
  transition-property: top left; /* Animazione. */
  transition-duration: .3s; /* Animazione. */
  transition-timing-function: ease; /*Valore default.*/ /* Animazione. */
  transition-delay: 1s; /*Animazione. */
}

.hamburger-icon span:nth-child(1){
  top: 0;
  left: 0;
  width: 50%;
  transform: translateY(0);
}

.hamburger-wrapper.active span:nth-child(1){
  width: 100%;
  transform: translateY(15px);
  transition-property: transform; /* Animazione. */
  transition-duration: 0s; /*Valore default.*/ /* Animazione. */
  transition-timing-function: ease; /*Valore default.*/ /* Animazione. */
  transition-delay: 0s; /* Animazione. */
}

.hamburger-icon span:nth-child(2){
  width: 100%;
  transform: scale(1);
  opacity: 1;
}

.hamburger-wrapper.active span:nth-child(2){
  transform: scale(0);
  opacity: 0;
  transition-property: transform; /* Animazione. */
  transition-duration: 0s; /*Valore default.*/ /* Animazione. */
  transition-timing-function: ease; /*Valore default.*/ /* Animazione. */
  transition-delay: 0s; /* Animazione. */
}

.hamburger-icon span:nth-child(3){
  bottom: 0;
  right: 0;
  width: 50%;
  transform: rotate(0);
}

.hamburger-wrapper.active span:nth-child(3){
  bottom: 11px;
  width: 100%;
  transform: rotate(90deg);
  transition-property: transform; /* Animazione. */
  transition-duration: 0s; /*Valore default.*/ /* Animazione. */
  transition-timing-function: ease; /*Valore default.*/ /* Animazione. */
  transition-delay: 0s; /* Animazione. */
}

/* ===================================================================================== */

@media only screen and (max-width: 850px){
  /* Hamburger. */
  header{
    height: 80px;
  }

  .hamburger-wrapper{
    display: flex;
    z-index: 100;
  }

  /* Navbar. */
  header > nav{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 0;
    opacity: 0;
    overflow: hidden;
    background-color: #000;
    transition-property: height, padding, opacity; /* Animazione. */
    transition-duration: 1s; /* Animazione. */
    transition-timing-function: cubic-bezier(.215, .61, .355, 1); /* Animazione. */
  }

  .displayMenu{
    height: 200vh;
    padding: 150px 40px 0;
    opacity: 1;
  }

  header > nav ul{
    display: block;
    width: 100%;
    /* margin-top: 30px; */
  }

  header > nav li{
    margin-bottom: 10px;
    width: 100%;
    border-bottom: 1px solid #555;
  }

  header > nav a{
    justify-content: start;
    padding-top: 10px;
    width: fit-content;
    min-width: 50px;
    transition-property: font-weight;
  }

  header > nav a:hover{
    font-weight: bold;
  }

  header > nav a::before{
    height: 0;
    width: 0;
    background-color: transparent;
  }
}

@media only screen and (max-width: 400px){
  .logo{
    transform: scale(.6);
    transform-origin: top left;
  }

  .displayMenu{
    padding-top: 100px;
  }
}

@media only screen and (max-height: 300px){
  header > nav li{
    margin-bottom: 0;
  }
}