nouveau-theatre-de-besancon/assets/css/src/nav.css

@keyframes scroll-left {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(calc(0px - ((100% / 3) - var(--space-m) / 1.6)));
  }
}

.main-nav a.current,
#expanded-nav a.current {
  font-weight: bold;
}

.info-banner {
  overflow: hidden;
  white-space: nowrap;
  border-bottom: var(--border);
  background-color: var(--color);
}

.info-banner ul {
  box-sizing: border-box;
  padding: 1rem var(--space-m);
  display: inline-block;
  animation: scroll-left 12s linear infinite;
}

.info-banner li {
  display: inline-block;
  padding-right: 6vw;
  font-size: var(--font-size-s);
}

.main-header {
  position: sticky;
  top: 0;
  background-color: #fff;
  z-index: 10;
}
/* Nav */

/* Expanded nav */

#expanded-nav {
  position: fixed;
  width: 100%;
  box-sizing: border-box;
  top: -50rem;
  z-index: 11;
  background-color: var(--color-beige);
  display: grid;
  grid-template-columns: 2fr 8fr 1fr;
  padding: 3rem var(--space-m) 3rem 1rem;
  border-bottom: var(--border);

  transition: top 0.6s var(--curve-quick-slow);
}
#expanded-nav.open {
  top: 0rem;
}

.expanded-nav__logo-link {
  height: fit-content;
}

.expanded-nav__columns {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  row-gap: 6rem;
}

.expanded-nav__category {
  margin-bottom: 1rem;
}
.expanded-nav__category .toggle {
  display: none;
}
.expanded-nav__subcategory {
  font-size: var(--font-size-s);
}

.expanded-nav__ticketing a {
  display: flex;
  align-items: center;
}

.expanded-nav__links {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.expanded-nav__links .social-icons {
  margin-top: 1rem;
}

/* Header */

.main-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: var(--border);
  padding: 1rem;
  padding-right: var(--space-m);
}

.main-nav__right {
  display: flex;
  align-items: center;
}

.main-nav__featured-pages {
  display: flex;
}

.main-nav__right > *:not(:last-child),
.main-nav__featured-pages li:not(:last-child) {
  margin-right: 2.69rem;
}

.main-nav__search {
  transform: translateY(1px);
}

.main-nav .burger-btn {
  position: relative;
  width: 1.5rem;
  height: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.main-nav .burger-btn__line,
.main-nav .burger-btn__line::before,
.main-nav .burger-btn__line::after {
  content: "";
  width: 100%;
  height: 3px;
  background-color: #000;
  position: absolute;
}

.main-nav .burger-btn__line::before {
  transform: translateY(-0.5rem);
}

.main-nav .burger-btn__line::after {
  transform: translateY(0.5rem);
}

/* Main nav small */
.main-nav--small .logo {
  font-size: var(--font-size-m);
}
.main-nav .logo > * {
  height: 1.8ch;
  max-width: 10rem;
  overflow: hidden;
  transition: all 0.5s var(--curve-quick);
}

.main-nav--small .logo > *:not(:first-child) {
  margin-left: 1.25ch;
}

.main-nav--small .logo > * {
  max-width: 1ch;
}
.main-nav--small .logo > *:nth-child(2) {
  max-width: 0.9ch;
}

@media screen and (max-width: 800px) {
  .main-nav__featured-pages {
    display: none;
  }

  .main-nav__right > :not(:last-child),
  .main-nav__featured-pages li:not(:last-child) {
    margin-right: 7vw;
  }

  .main-nav svg {
    height: 5.2vw;
  }

  #expanded-nav {
    width: 100vw;
    height: 100vh;
    top: -100vh;
    display: block;
    overflow: scroll;
  }

  #expanded-nav .close-btn {
    position: absolute !important;
    top: 3rem;
    right: var(--space-m);
  }

  .expanded-nav__columns {
    display: block;
    margin-top: 3rem;
  }
  .expanded-nav__category .toggle {
    display: block;
    transform: rotate(0deg);
    transition: transform 0.2s ease-in-out;
  }
  .expanded-nav__category .toggle.open {
    transform: rotate(90deg);
  }

  .expanded-nav__subcategories {
    padding-left: 2.8ch;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s var(--curve-quick-slow);
  }
  .expanded-nav__subcategories.open {
    max-height: 13rem;
  }

  .expanded-nav__subcategories > li:last-child {
    margin-bottom: 1rem;
  }

  .expanded-nav__columns > li:not(.expanded-nav__links) {
    border-bottom: var(--border);
    margin-bottom: 1rem;
  }

  .expanded-nav__ticketing {
    font-size: var(--font-size-h4);
    padding-bottom: 1rem;
    border-bottom: var(--border);
  }

  .expanded-nav__category {
    width: 100%;
    display: flex;
    justify-content: space-between;
  }

  .expanded-nav__socials {
    margin-top: 3rem;
  }
}