:root {
  margin: 0;
  padding: 0;
  --accent-500: #e04908;
  --neutral-100: #fcf4f1;
  --primary: #333333;
}

html {
  font-size: 16px;
  font-family:
    "Helvetica Neue",
    "Helvetica",
    -apple-system,
    BlinkMacSystemFont,
    "Onest",
    sans-serif;
  font-optical-sizing: auto;
  font-weight: 400;
  font-style: normal;
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  margin: 0;
  padding: 0;
  background-color: #fff;
  color: var(--primary);
  font-size: 1rem;
}
a {
  color: var(--primary);
  text-decoration: none;
}
a:hover {
  opacity: 0.8;
}
a:active {
  opacity: 0.9;
}

/*
*
* TYPOGRAPHY *
*
*/

h1 {
  font-size: 4rem;
  font-weight: 400;
  line-height: 3.75rem;
  padding: 0;
  margin: 0;
  letter-spacing: -0.03em;
  font-family: "Helvetica Neue", Helvetica, sans-serif, Arial;
}

h2,
.title {
  font-size: 2.5rem;
  font-weight: 400;
  line-height: 2.25rem;
  padding: 0;
  margin: 0;
  vertical-align: baseline;
  letter-spacing: -0.03em;
  font-family: "Helvetica Neue", Helvetica, sans-serif, Arial;
}

h3 {
  font-size: 1.5rem;
  font-weight: 400;
  line-height: 2rem;
  padding: 0;
  margin: 0;
  letter-spacing: -0.01em;
  text-transform: uppercase;
}
h4,
.project {
  font-size: 1.15rem;
  font-weight: 400;
  line-height: 1.25rem;
  padding: 0;
  margin: 0;
  text-transform: uppercase;
}

p {
  font-size: 1rem;
  line-height: 1.5rem;
  vertical-align: baseline;
}

p.small,
.date {
  font-size: 0.75rem;
  line-height: 1.25rem;
  opacity: 0.8;
  vertical-align: baseline;
}

/*
*
* LAYOUT *
*
*/
.heading {
  top: 12px;
  left: 12px;
  display: flex;
  position: fixed;
  align-items: baseline;
  gap: 12px;
  width: 100%;
  max-width: calc(100vw - 36px);
  justify-content: space-between;
  background-color: rgba(0, 0, 0, 0);
  z-index: 100;
}

.heading h2 {
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 2rem;
  letter-spacing: -0.02em;
}
.heading span#headingPhrase {
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 2rem;
  letter-spacing: -0.02em;
}
.container {
  padding: 4rem 0 0 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: start;
  gap: 2rem;
}
.intro {
  color: var(--primary);
  grid-column: 1 / -1;
  padding: 12px;
  display: grid;
  grid-template-columns: 1fr 2fr;
  align-items: baseline;
}
.intro p,
.intro h1 {
  max-width: 40ch;
}

.item {
  grid-column: span 2;
  min-height: 480px;
  display: grid;
  grid-template-columns: 1fr 2fr;
  border-top: solid 1px #333;
  padding-top: 8px;
  margin-bottom: 8rem;
  opacity: 0;
  transition:
    opacity 0.6s ease-out,
    transform 0.75s ease-out;
}

div.info {
  position: sticky;
  top: 0;
  display: grid;
  align-content: start;
  align-self: flex-start;
  grid-column: 1;
  grid-row: 1;
  grid-template-columns: 5fr 1fr;
  grid-template-areas: "title tags" "project tags" "releaseDate tags" "description tags" "credits .";
  padding-top: 4rem;
}
.image-container {
  grid-column: 2;
  grid-row: 1;
}
img.image {
  width: 100%;
}

@media screen and (max-width: 960px) {
  .item {
    grid-template-columns: 1fr;
  }
  .intro {
    grid-template-columns: 1fr;
  }
  div.info {
    position: relative;
    top: auto;
    grid-row: 2;
    grid-column: 1;
  }
  div.image-container {
    grid-row: 1;
    grid-column: 1;
  }
}

.image.visible,
.item.visible {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}

.item .title,
.item .project,
.item .date {
  color: var(--primary);
}

.info .tags {
  grid-area: tags;
  display: flex;
  flex-direction: column;
  align-items: end;
  gap: 0.25rem;
}

.item .badge {
  background-color: #fff;
  color: var(--primary);
  border: 1px solid var(--primary);
  border-radius: 2px;
  margin: 2px;
  font-size: 0.75rem;
  line-height: 1rem;
  padding: 0.5rem 0.25rem;
  height: max-content;
  flex-basis: 0;
  writing-mode: vertical-lr;
  text-orientation: sideways;
  white-space: nowrap;
}

.item .title {
  color: var(--primary);
  padding: 8px 12px;
  width: fit-content;
}
.item .project {
  margin: 8px 12px;
  color: var(--primary);
  padding: 0.5rem;
  border: 1px solid var(--primary);
  border-radius: 0.25rem;
  justify-self: start;
}

.item .category {
  grid-column: span 4;
}

.item .date {
  grid-area: releaseDate;
  padding: 0 12px;
  justify-self: start;
}
.item .date a {
  background-color: var(--primary);
  color: #fff;
  padding: 0.5rem;
  border-radius: 4rem;
}

.item .description,
.item .credits {
  grid-area: description;
  padding: 12px;
  display: flex;
  justify-content: end;
  align-items: end;
  opacity: 1;
}
.item .credits {
  grid-area: credits;
}
.description p,
.credits p {
  max-width: 32rem;
}

/*
*
* COMPONENTS *
*
*/

.btn {
  display: inline-flex;
  border: solid 1px currentColor;
  border-radius: 3rem;
  padding: 0.5rem;
  width: auto;
  text-align: center;
  align-content: center;
  justify-content: center;
}
.btn.show {
  opacity: 0;
  width: 24px;
  height: 24px;
  cursor: pointer;
}
.btn.show:hover {
  background-color: #00000020;
}
.item .info .btn.show:hover + .description {
  opacity: 1;
}
.item:hover .btn.show {
  opacity: 1;
}