/* common */

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
}

h1,
h2,
h3 {
  margin: 0;
  font-weight: normal;
}

p {
  margin: 0;
}

img {
  vertical-align: bottom;
}

.container {
  margin: 0 16px;
}

ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

a {
  text-decoration: none;
  color: inherit;
  transition: opacity 0.3s;
}

a:hover {
  opacity: 0.5;
}

/* header */

header {
  background: white;
  padding: 16px 0;
  position: fixed;
  top: 0;
  width: 100%;
  transition: background-color 0.3s, box-shadow 0.3s;
  z-index: 1;
}

header.scrolled {
  background-color: rgba(255, 255, 255, 0.95);
  box-shadow: 0 0 4px rgba(0, 0, 0, 0.3);
}

header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

header ul {
  display: flex;
}

header li a {
  display: flex;
  flex-direction: column;
  font-size: 12px;
  text-align: center;
}

header li a i {
  font-size: 18px;
}

header li + li {
  margin-left: 8px;
}

header form {
  display: none;
}

header input,
header button {
  all: unset;
}

header input {
  border-bottom: 1px solid #aaa;
  padding: 4px;
  width: 300px;
}

header button {
  cursor: pointer;
}
#to_top {
  position: fixed;
  bottom: 16px;
  right: 16px;
  opacity: 0;
  transition: opacity 0.3s;
}

/* hero */

.hero {
  height: 720px;
}

.hero img {
  width: 100%;
  height: 720px;
  object-fit: cover;
  position: absolute;
  opacity: 0;
  transition: opacity 1s;
}

.hero img.current {
  opacity: 1;
}

/* products */

.products {
  padding: 80px 0 0;
}

.products ul {
  margin-top: 32px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.products + .products {
  padding-top: 80px;
}

.products li {
  width: calc((100% - 12px) / 6);
}

.products li img {
  width: 100%;
}

.products li h3 {
  font-size: 16px;
  margin-top: 8px;
}

.products li a {
  display: block;
}

.products .more {
  display: block;
  width: 70%;
  line-height: 48px;
  border: 2px solid #333;
  text-align: center;
  margin: 32px auto 0;
}

/* footer */

footer {
  margin-top: 80px;
  background: #4c4948;
  padding: 16px 0;
  color: #eee;
}

footer .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

footer small {
  font-size: 16px;
}

footer li i {
  font-size: 24px;
}

footer ul {
  display: flex;
}

footer li + li {
  margin-left: 8px;
}

/* medium screen */

@media (min-width: 600px) {
  .products li {
    width: calc((100% - 60px) / 6);
  }
}

/* large screen */

@media (min-width: 800px) {
  .container {
    width: calc(100% - 60px);
    margin: 0 auto;
    max-width: 1260px;
  }

  header form {
    display: block;
  }
}