.guides-hub-page {
  --guides-surface: #ffffff;
  --guides-subtle: #eef1ee;
  --guides-line: #c9d1ca;
  --guides-copy: #36443b;
  min-height: 100vh;
  color: var(--ink);
  background: #f7f8f6;
}

.guides-hub-page main {
  min-height: calc(100vh - 184px);
}

.guides-page-width {
  width: min(1100px, calc(100% - 2rem));
  margin-inline: auto;
  padding-block: clamp(2.75rem, 6vw, 5rem) clamp(4rem, 8vw, 7rem);
}

.guides-intro {
  max-width: 680px;
  margin-bottom: clamp(2rem, 4vw, 3rem);
}

.guides-intro h1 {
  margin: 0 0 0.55rem;
  font: 800 clamp(2.35rem, 4.2vw, 3.6rem) / 1.05 var(--display);
  letter-spacing: -0.035em;
  scroll-margin-top: 6rem;
  text-wrap: balance;
}

.guides-intro p {
  max-width: 62ch;
  margin: 0;
  color: var(--guides-copy);
  font-size: 1.02rem;
  text-wrap: pretty;
}

.course-layout {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  gap: 1.75rem;
  align-items: start;
}

.course-summary,
.syllabus {
  overflow: hidden;
  background: var(--guides-surface);
  border: 1px solid var(--guides-line);
  border-radius: 8px;
}

.course-summary {
  position: sticky;
  top: 96px;
}

.course-cover {
  display: grid;
  min-height: 190px;
  place-items: center;
  background: var(--green);
}

.course-cover img {
  border-radius: 15px;
}

.course-summary-body {
  padding: 1.2rem;
}

.course-summary h2 {
  margin: 0;
  font: 800 1.3rem/1.2 var(--display);
  letter-spacing: -0.015em;
  text-wrap: balance;
}

.course-summary-body > p:not(.course-download) {
  margin: 0.7rem 0 1.1rem;
  color: var(--guides-copy);
  font-size: 0.9rem;
  line-height: 1.55;
  text-wrap: pretty;
}

.course-summary dl {
  margin: 0;
  border-top: 1px solid var(--guides-line);
}

.course-summary dl div {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 0.7rem;
  border-bottom: 1px solid var(--guides-line);
}

.course-summary dt,
.course-summary dd {
  margin: 0;
  font-size: 0.85rem;
}

.course-summary dt {
  color: var(--guides-copy);
}

.course-summary dd {
  font-weight: 800;
  text-align: right;
}

.course-download {
  margin: 1rem 0 0;
  color: var(--guides-copy);
  font-size: 0.84rem;
  line-height: 1.5;
}

.course-download a {
  color: var(--ink);
  font-weight: 800;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.syllabus > header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 58px;
  padding-inline: 1.1rem;
  background: var(--guides-subtle);
  border-bottom: 1px solid var(--guides-line);
}

.syllabus h2 {
  margin: 0;
  font: 800 1.15rem/1.2 var(--display);
}

.syllabus > header span {
  color: var(--guides-copy);
  font-size: 0.82rem;
  font-weight: 700;
}

.syllabus > a {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr) auto;
  gap: 0.8rem;
  align-items: center;
  min-height: 78px;
  padding: 0.8rem 1rem;
  color: var(--ink);
  border-bottom: 1px solid var(--guides-line);
  transition: background-color 150ms var(--ease-out-quart);
}

.syllabus > a:last-child {
  border-bottom: 0;
}

.lesson-icon {
  display: grid;
  width: 30px;
  height: 30px;
  place-items: center;
  padding-left: 0.1rem;
  color: var(--green-dark);
  background: #e1f6e7;
  border-radius: 50%;
  font-size: 0.66rem;
  line-height: 1;
}

.lesson-copy,
.lesson-copy strong,
.lesson-copy small {
  display: block;
  min-width: 0;
}

.lesson-copy strong {
  font: 800 1rem/1.3 var(--display);
  text-wrap: pretty;
}

.lesson-copy small {
  margin-top: 0.15rem;
  color: var(--green-dark);
  font-size: 0.76rem;
  font-weight: 800;
  line-height: 1.35;
}

.lesson-open {
  min-width: 66px;
  color: var(--green-dark);
  font-size: 0.78rem;
  font-weight: 800;
  text-align: right;
}

@media (hover: hover) {
  .syllabus > a:hover {
    background: #f3f6f3;
  }

  .syllabus > a:hover .lesson-copy strong,
  .course-download a:hover {
    color: var(--green-dark);
    text-decoration: underline;
    text-underline-offset: 4px;
  }
}

@media (max-width: 760px) {
  .course-layout {
    grid-template-columns: 1fr;
  }

  .course-summary {
    position: static;
    display: grid;
    grid-template-columns: 190px minmax(0, 1fr);
  }

  .course-cover {
    min-height: 100%;
  }
}

@media (max-width: 520px) {
  .guides-page-width {
    width: min(100% - 1.5rem, 1100px);
    padding-block: 2.25rem 4.5rem;
  }

  .guides-intro h1 {
    font-size: 2.25rem;
  }

  .course-summary {
    display: block;
  }

  .course-cover {
    min-height: 154px;
  }

  .course-cover img {
    width: 72px;
    height: 72px;
    border-radius: 13px;
  }

  .syllabus > header {
    padding-inline: 0.85rem;
  }

  .syllabus > a {
    grid-template-columns: 30px minmax(0, 1fr) auto;
    gap: 0.65rem;
    min-height: 82px;
    padding: 0.8rem 0.85rem;
  }

  .lesson-icon {
    width: 28px;
    height: 28px;
  }

  .lesson-open {
    min-width: 20px;
    overflow: hidden;
    color: transparent;
    font-size: 0;
  }

  .lesson-open::after {
    content: "→";
    color: var(--green-dark);
    font-size: 1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .syllabus > a {
    transition: none;
  }
}