body.hints-page::before {
  background-image: linear-gradient(rgba(10, 12, 11, 0.7), rgba(10, 12, 11, 0.7)), var(--reader-background-image);
  filter: saturate(0.55) contrast(0.9);
}

.hints-main {
  width: 100%;
}

.hints-introduction {
  max-width: 38rem;
  margin-bottom: clamp(2.5rem, 6vw, 4.5rem);
}

.hints-label {
  margin-bottom: 0.75rem;
  color: var(--accent);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.hints-introduction h1 {
  margin-bottom: 1.25rem;
  color: var(--reader-ink);
  font-size: clamp(2.8rem, 7vw, 4.7rem);
  letter-spacing: -0.055em;
  line-height: 0.95;
}

.hints-introduction > p:last-child {
  margin-bottom: 0;
  color: var(--reader-muted);
  font-family: var(--serif);
  font-size: 1.1rem;
}

.hints-navigation {
  margin-bottom: clamp(1.75rem, 4vw, 2.75rem);
  padding: 0.9rem 0;
  border-top: 1px solid var(--reader-rule);
  border-bottom: 1px solid var(--reader-rule);
}

.hints-navigation ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.hints-navigation li {
  display: flex;
  align-items: center;
}

.hints-navigation li:not(:last-child)::after {
  margin: 0 0.6rem;
  color: var(--reader-rule);
  content: "·";
}

.hints-navigation a {
  color: var(--reader-muted);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-decoration-color: transparent;
  text-transform: uppercase;
  text-underline-offset: 0.25em;
}

.hints-navigation a:hover,
.hints-navigation a:focus-visible {
  color: var(--accent);
  text-decoration-color: currentColor;
}

.hints-chapter {
  scroll-margin-top: 2rem;
}

.hints-chapter + .hints-chapter {
  margin-top: clamp(2.25rem, 5vw, 3.5rem);
}

.hints-chapter h2 {
  margin-bottom: 0.8rem;
  color: var(--reader-ink);
  font-size: clamp(1.9rem, 4vw, 2.7rem);
  letter-spacing: -0.04em;
  line-height: 1;
}

.hints-chapter h2 a {
  text-decoration: none;
}

.hints-chapter h2 a:hover,
.hints-chapter h2 a:focus-visible {
  color: color-mix(in srgb, var(--reader-ink) 88%, var(--accent));
}

.hint-question {
  max-width: 37rem;
  margin-bottom: 1.8rem;
  padding-left: 1rem;
  border-left: 2px solid var(--accent);
  color: var(--reader-muted);
  font-family: var(--serif);
  font-size: 1.04rem;
  line-height: 1.6;
}

.hint-item {
  border-top: 1px solid var(--reader-rule);
}

.hint-item:last-child {
  border-bottom: 1px solid var(--reader-rule);
}

.hint-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 3.25rem;
  padding: 0.7rem 0;
  color: var(--reader-ink);
  cursor: pointer;
  font-family: var(--sans);
  font-size: 0.82rem;
  font-weight: 650;
  letter-spacing: 0.03em;
  list-style: none;
}

.hint-item summary::-webkit-details-marker {
  display: none;
}

.hint-item summary::after {
  width: 0.42rem;
  height: 0.42rem;
  margin-left: 1rem;
  border-right: 1px solid currentColor;
  border-bottom: 1px solid currentColor;
  content: "";
  opacity: 0.75;
  transform: rotate(45deg) translateY(-0.12rem);
}

.hint-item[open] summary::after {
  transform: rotate(225deg) translateY(-0.12rem);
}

.hint-item summary:hover {
  color: var(--accent);
}

.hint-item summary:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: -2px;
}

.hint-content {
  max-width: 38rem;
  padding: 0 2rem 1.3rem 0;
  color: var(--reader-muted);
  font-family: var(--serif);
  font-size: 1.02rem;
  line-height: 1.65;
}

.hint-content p {
  margin: 0;
}

.solution-item summary {
  color: var(--accent);
}

.solution-item .hint-content {
  color: var(--reader-ink);
}

.hints-footer {
  margin-top: clamp(3.5rem, 8vw, 6rem);
  padding-top: 1.25rem;
  border-top: 1px solid var(--reader-rule);
  color: var(--reader-muted);
  font-family: var(--sans);
  font-size: 0.7rem;
}

.hints-footer p {
  margin: 0;
}

@media (max-width: 32rem) {
  body.hints-page::before {
    background-image: linear-gradient(rgba(10, 12, 11, 0.82), rgba(10, 12, 11, 0.82)), var(--reader-background-image);
  }

  .hints-main {
    width: 100%;
  }

  .hints-navigation li:not(:last-child)::after {
    margin-inline: 0.45rem;
  }
}