:root {
  --aef-ink: #1c2421;
  --aef-rust: #b4452d;
  --aef-board: #d3ddd8;
  --aef-mist: #e7efec;
  --aef-measure: 68rem;
  --aef-read: 42rem;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--aef-board);
  color: var(--aef-ink);
  font-family: "Hanken Grotesk", "Segoe UI", sans-serif;
  font-size: 1.0625rem;
  line-height: 1.6;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

h1,
h2,
h3 {
  font-family: Castoro, Palatino, "Palatino Linotype", serif;
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.015em;
}

p,
li,
dd {
  overflow-wrap: anywhere;
}

.aef-skip {
  position: absolute;
  left: 0.75rem;
  top: -3.5rem;
  background: var(--aef-rust);
  color: #fff;
  padding: 0.45rem 0.7rem;
  border-radius: 3px;
  z-index: 3;
}

.aef-skip:focus {
  top: 0.75rem;
}

.aef-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem 2rem;
  flex-wrap: wrap;
  padding: 0.85rem 1.4rem;
  background: var(--aef-ink);
  color: var(--aef-mist);
}

.aef-mark {
  display: block;
  width: 210px;
}

.aef-mark img {
  width: 210px;
  height: auto;
}

.aef-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.15rem;
}

.aef-links a {
  color: inherit;
  text-decoration: none;
  font-size: 0.98rem;
  padding: 0.35rem 0;
}

.aef-links a[aria-current="page"]::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 0.45rem;
  background: var(--aef-rust);
  vertical-align: middle;
}

#aef-main {
  width: min(var(--aef-measure), calc(100% - 2rem));
  margin: 0 auto;
  padding: 2.4rem 0 3.5rem;
}

.aef-open {
  display: grid;
  grid-template-columns: 8px minmax(0, 1fr);
  gap: 0 1.35rem;
  align-items: stretch;
}

.aef-rule {
  background: var(--aef-rust);
  transform-origin: top center;
  min-height: 100%;
}

.aef-rule.aef-draw {
  animation: aef-grow 700ms ease forwards;
}

.aef-rule.aef-still {
  transform: none;
}

@keyframes aef-grow {
  from {
    transform: scaleY(0.08);
  }
  to {
    transform: scaleY(1);
  }
}

.aef-plate {
  display: inline-block;
  margin: 0 0 0.85rem;
  padding: 0.12rem 0.45rem;
  border: 1px solid var(--aef-rust);
  color: var(--aef-rust);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.aef-open h1 {
  margin: 0 0 1rem;
  font-size: clamp(2rem, 4.2vw, 3.35rem);
  max-width: 18ch;
}

.aef-pair {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem 1.5rem;
  margin-bottom: 1.15rem;
}

.aef-sub {
  margin: 0;
  font-size: 1rem;
}

.aef-send {
  display: inline-block;
  flex: 0 0 auto;
  background: var(--aef-rust);
  color: #fff;
  text-decoration: none;
  border: 0;
  border-radius: 3px;
  padding: 0.62rem 0.95rem;
  font: 500 1rem/1 "Hanken Grotesk", "Segoe UI", sans-serif;
  cursor: pointer;
}

.aef-send:hover {
  background: #8e3422;
}

.aef-send:focus-visible,
.aef-links a:focus-visible,
.aef-foot a:focus-visible,
#aef-main a:focus-visible {
  outline: 2px solid var(--aef-rust);
  outline-offset: 3px;
}

.aef-prose {
  margin: 0;
  max-width: 68ch;
}

.aef-piece,
.aef-list,
.aef-moves,
.aef-counter {
  margin-top: 3.25rem;
}

.aef-piece h2,
.aef-list h2,
.aef-moves h2,
.aef-counter h2,
.aef-sheet h2 {
  margin: 0 0 0.7rem;
  font-size: 1.55rem;
}

.aef-piece h2 a,
#aef-main a {
  color: var(--aef-ink);
}

.aef-sheets {
  list-style: none;
  margin: 0.4rem 0 0;
  padding: 0;
}

.aef-sheets a {
  display: grid;
  grid-template-columns: 18px 13.5rem minmax(0, 1fr);
  gap: 0.75rem;
  align-items: baseline;
  padding: 0.9rem 0;
  border-bottom: 1px solid rgba(28, 36, 33, 0.28);
  text-decoration: none;
  color: inherit;
}

.aef-dash {
  width: 18px;
  height: 2px;
  margin-top: 0.55rem;
  background: var(--aef-rust);
}

.aef-sheets strong {
  font-family: Castoro, Palatino, serif;
  font-weight: 400;
  font-size: 1.15rem;
}

.aef-moves ol,
.aef-sheet ol {
  margin: 0.2rem 0 0;
  padding-left: 1.25rem;
}

.aef-moves li + li,
.aef-sheet li + li {
  margin-top: 0.45rem;
}

.aef-counter p {
  margin: 0.2rem 0;
}

.aef-sheet {
  max-width: var(--aef-read);
  border-top: 6px solid var(--aef-rust);
  padding-top: 1.25rem;
}

.aef-sheet h1 {
  margin: 0 0 0.8rem;
  font-size: clamp(1.8rem, 3vw, 2.5rem);
}

.aef-tag {
  margin: 0 0 0.7rem;
  color: var(--aef-rust);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.aef-fields {
  display: grid;
  grid-template-columns: 11rem minmax(0, 1fr);
  gap: 0.45rem 1rem;
  margin: 1rem 0;
}

.aef-fields dt {
  font-weight: 600;
}

.aef-fields dd {
  margin: 0;
}

.aef-form {
  display: grid;
  gap: 0.85rem;
  margin-top: 1.2rem;
}

.aef-form label {
  display: grid;
  gap: 0.3rem;
  font-weight: 600;
}

.aef-form input,
.aef-form textarea {
  width: 100%;
  border: 1px solid var(--aef-ink);
  border-radius: 0;
  background: var(--aef-mist);
  color: var(--aef-ink);
  font: 400 1rem/1.4 "Hanken Grotesk", "Segoe UI", sans-serif;
  padding: 0.55rem 0.65rem;
}

.aef-asks {
  list-style: none;
  margin: 0;
  padding: 0;
}

.aef-asks li {
  padding: 0.85rem 0;
  border-bottom: 1px solid rgba(28, 36, 33, 0.28);
}

.aef-asks p {
  margin: 0.2rem 0;
}

.aef-foot {
  border-top: 8px solid var(--aef-rust);
  background: var(--aef-board);
  padding: 1.8rem 1.2rem 2.4rem;
}

.aef-foot-grid {
  width: min(var(--aef-measure), 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: 1.4rem 2.5rem;
}

.aef-foot p {
  margin: 0.15rem 0;
}

.aef-foot-links {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.35rem;
}

.aef-foot a {
  color: var(--aef-ink);
}

.aef-fine {
  width: min(var(--aef-measure), 100%);
  margin: 1rem auto 0;
  max-width: 68ch;
}

@media (max-width: 760px) {
  .aef-pair {
    flex-direction: column;
    align-items: flex-start;
  }

  .aef-sheets a {
    grid-template-columns: 18px minmax(0, 1fr);
  }

  .aef-sheets a span {
    grid-column: 2;
  }

  .aef-fields,
  .aef-foot-grid {
    grid-template-columns: 1fr;
  }

  .aef-open h1 {
    max-width: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .aef-rule.aef-draw {
    animation: none;
  }
}