@charset "utf-8";

/* nav ------------------------------ */

.nav {
  position: fixed;
  top: 50%;
  right: 1rem;
  margin-top: -117px;
}

.nav-active {
  background-color: rgba(0, 0, 0, .7);
}

.nav-btn {
  width: 15px;
  height: 15px;
  display: block;
  margin: 1rem;
  text-indent: -9999px;
  background-color: #fff;
  opacity: .5;
  transition-duration: .3s;
}

.nav-btn:hover,
.nav-btn-active {
  opacity: 1;
}

.nav-btn-index {
  background-color: #000;
}

/* article ---------------------------- */

.article {
  max-width: 950px;
  padding: 3rem 5rem;
  color: #fff;
  box-sizing: border-box;
}

.article-title {
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1.3;
  text-transform: capitalize;
}

.article-desc {
  margin-top: 1rem;
  margin-bottom: 1rem;
  line-height: 1.7;
  text-align: justify;
}

/* grid ----------------------------- */

.grid {
  display: grid;
  gap: 1.5rem;
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

/* card ------------------------- */

.card {
  position: relative;
  -webkit-box-reflect: below -1px linear-gradient(to top, rgba(0, 0, 0, .3) 0, transparent 50%);
}

.card-body {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: rgba(0, 0, 0, .5);
}

.card-body:hover {
  opacity: 1;
}

.card-body .fas {
  font-size: 2rem;
  color: #fff;
}

.card-img {
  max-width: 100%;
  height: auto;
}

/* module: hover ---------------- */

.hover-fade-in .card-body {
  opacity: 0;
  transition-duration: .3s;
}

.hover-fade-in:hover .card-body {
  opacity: 1;
}

.hover-fade-out .card-body {
  opacity: 1;
  transition-duration: .3s;
}

.hover-fade-out:hover .card-body {
  opacity: 0;
}

.hover-zoom-in .fas {
  transform: scale(0);
  transition-duration: .3s;
}

.hover-zoom-in:hover .fas {
  transform: scaleX(1);
}

/* RWD ---------------------- */

@media screen and (max-width: 1024px) {
  .article {
    width: 80%;
  }
}

@media screen and (max-width: 480px) {
  .nav {
    top: 0;
    left: 0;
    margin-top: 0;
    display: flex;
    justify-content: center;
    width: 100%;
    z-index: 10;
  }

  .article {
    padding: 4rem 2rem 2rem;
    width: auto;
  }

  .article-head {
    text-align: center;
  }
}