/* Homepage-only surfaces. Question and catalog pages retain their own styles. */
.home {
  --home-ink: #183b35;
  --home-muted: #526761;
  --home-line: #d6e3dc;
  --home-surface: #f4f8f5;
  --home-card: #fff;
  --home-green: #176349;
  --course-accent: var(--home-green);
  --hero-background: #f2f8ed;
  --hero-highlight: #e0efd7;
  --hero-button: #176349;
  --hero-button-ink: #fff;
  color: var(--home-ink);
}
[data-md-color-scheme="slate"] .home {
  --home-ink: #e1f2e9;
  --home-muted: #b4c9bd;
  --home-line: #40554c;
  --home-surface: #202f29;
  --home-card: #27382f;
  --home-green: #8cdeb7;
  --hero-background: #173d32;
  --hero-highlight: #245640;
  --hero-button: #d4f19c;
  --hero-button-ink: #173a2c;
}
.md-typeset .home h1,
.md-typeset .home h2,
.md-typeset .home h3,
.md-typeset .home p {
  margin: 0;
}
.md-typeset .home a {
  color: var(--home-green);
}
.md-typeset .home a:focus-visible {
  outline: 3px solid var(--home-green);
  outline-offset: 4px;
}
.home > section + section {
  margin-top: 1.15rem;
}
.home .home-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1rem;
  padding: 0.85rem 1rem;
  border-radius: 10px;
  color: var(--home-ink);
  background:
    radial-gradient(ellipse at 95% 0%, var(--hero-highlight), transparent 65%),
    var(--hero-background);
  box-shadow: 0 4px 12px #123e3410;
  border: 1px solid var(--home-line);
}
.md-typeset .home .home-eyebrow {
  font-size: 0.61rem;
  font-weight: 750;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.home-hero .home-eyebrow {
  color: var(--home-green);
}
.md-typeset .home h1 {
  color: inherit;
  font-size: clamp(1.65rem, 3.5vw, 2.25rem);
  font-weight: 780;
  letter-spacing: -0.045em;
  line-height: 1.1;
  margin: 0.25rem 0 0.35rem;
}
.md-typeset .home-hero h1 {
  font-size: clamp(1.55rem, 3vw, 1.85rem);
}
.home-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  margin: 0.6rem 0 0.25rem;
}
.md-typeset .home-hero a {
  color: var(--home-green);
  font-size: 0.72rem;
}
.md-typeset .home-hero a:focus-visible {
  outline-color: var(--home-green);
}
.md-typeset .home-hero .home-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  min-height: 44px;
  background: var(--hero-button);
  color: var(--hero-button-ink);
  padding: 0.45rem 0.7rem;
  border-radius: 7px;
  font-weight: 750;
  box-shadow: 0 2px 3px #09271f24;
}
.md-typeset .home .home-filter-hint {
  font-size: 0.62rem;
  color: var(--home-muted);
}
.home-stats {
  min-width: 10rem;
  align-self: center;
  text-align: center;
  padding-left: 1.15rem;
  border-left: 1px solid var(--home-line);
}
.home-stats > strong {
  display: block;
  font-size: 2.8rem;
  letter-spacing: -0.06em;
  line-height: 1;
  color: var(--home-green);
}
.home-stats > span {
  font-size: 1rem;
}
.home-stats > div {
  margin-top: 0.4rem;
  font-size: 0.7rem;
  line-height: 1.8;
  color: var(--home-muted);
}
.home-section-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.2rem 0.6rem;
  margin-bottom: 0.5rem;
}
.md-typeset .home h2 {
  font-size: 1.05rem;
  font-weight: 750;
  letter-spacing: -0.025em;
}
.md-typeset .home h3 {
  font-size: 0.85rem;
  font-weight: 750;
}
.md-typeset .home-section-heading p,
.home-section-heading > a {
  font-size: 0.65rem;
  color: var(--home-muted);
}
.home-featured {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.7rem;
}
.home-additional {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.55rem;
}
.md-typeset .home-course {
  display: block;
  position: relative;
  padding: 0.7rem;
  border: 1px solid var(--home-line);
  border-top: 3px solid var(--course-accent);
  border-radius: 9px;
  background: var(--home-card);
  box-shadow: 0 3px 8px #123e340b;
  color: var(--home-ink);
}
.home-course:hover {
  border-color: var(--course-accent);
  box-shadow: 0 4px 12px #123e3424;
}
/* Course identities follow syllabus/docs/COURSE_COLORS.md, extended by the
   Molecular Biology and Laboratory preferences in docs/HUMAN_GUIDANCE.md. */
.home .subject-biochemistry {
  --course-accent: #7b1fa2;
}
.home .subject-genetics {
  --course-accent: #1565c0;
}
.home .subject-biostatistics {
  --course-accent: #477427;
}
.home .subject-biotechnology {
  --course-accent: #9e3d32;
}
.home .subject-molecular_biology {
  --course-accent: #a62178;
}
.home .subject-laboratory {
  --course-accent: #14756e;
}
.home .subject-other {
  --course-accent: #b94b00;
}
[data-md-color-scheme="slate"] .home .subject-biochemistry {
  --course-accent: #d6a0eb;
}
[data-md-color-scheme="slate"] .home .subject-genetics {
  --course-accent: #8ab4f8;
}
[data-md-color-scheme="slate"] .home .subject-biostatistics {
  --course-accent: #a8d58a;
}
[data-md-color-scheme="slate"] .home .subject-biotechnology {
  --course-accent: #f28b82;
}
[data-md-color-scheme="slate"] .home .subject-molecular_biology {
  --course-accent: #ee99ce;
}
[data-md-color-scheme="slate"] .home .subject-laboratory {
  --course-accent: #7bd5cb;
}
[data-md-color-scheme="slate"] .home .subject-other {
  --course-accent: #ffab57;
}
.md-typeset .home .home-more.subject-other a {
  color: var(--course-accent);
}
.md-typeset .home-course h3,
.md-typeset .home .home-chart a {
  color: var(--course-accent);
}
.home-course.featured {
  padding: 0.8rem 1rem;
  background: linear-gradient(115deg, var(--home-surface), var(--home-card));
}
[data-md-color-scheme="slate"] .home-course {
  --home-ink: #e6e8ed;
  --home-muted: #c0c4cc;
  --home-card: #292d34;
  --home-surface: #24282f;
  --home-line: #484e58;
  --course-accent: #c7cdd7;
}
[data-md-color-scheme="slate"] .home .subject-biochemistry {
  --home-card: #3c2947;
  --home-surface: #2c2335;
  --home-line: #635070;
}
[data-md-color-scheme="slate"] .home .subject-genetics {
  --home-card: #243c58;
  --home-surface: #202c40;
  --home-line: #456080;
}
[data-md-color-scheme="slate"] .home .subject-biostatistics {
  --home-card: #303d23;
  --home-surface: #293123;
  --home-line: #566a43;
}
[data-md-color-scheme="slate"] .home .subject-biotechnology {
  --home-card: #462b2a;
  --home-surface: #352629;
  --home-line: #78504a;
}
[data-md-color-scheme="slate"] .home .subject-molecular_biology {
  --home-card: #43273b;
  --home-surface: #31232e;
  --home-line: #745369;
}
[data-md-color-scheme="slate"] .home .subject-laboratory {
  --home-card: #203c3a;
  --home-surface: #20302f;
  --home-line: #436b65;
}
[data-md-color-scheme="slate"] .md-typeset .home a.home-course {
  color: var(--home-ink);
}
.md-typeset .home-course.featured h3 {
  font-size: 1.2rem;
}
.home-course h3 > span {
  float: right;
  font-size: 0.8rem;
}
.home-course-icon {
  display: inline-block;
  font-size: 1rem;
  line-height: 1;
  color: var(--course-accent);
  margin-bottom: 0.35rem;
}
.home-tag {
  float: right;
  border: 1px solid var(--home-line);
  border-radius: 20px;
  padding: 0.05rem 0.4rem;
  font-size: 0.57rem;
  color: var(--home-muted);
}
.md-typeset .home-course p {
  font-size: 0.68rem;
  font-weight: 400;
  line-height: 1.4;
  margin: 0.25rem 0 0.45rem;
}
.md-typeset .home-course .home-detail {
  font-size: 0.65rem;
  color: var(--home-muted);
}
.home-count {
  font-size: 0.62rem;
  font-weight: 400;
  color: var(--home-muted);
}
.md-typeset .home .home-more {
  font-size: 0.7rem;
  margin-top: 0.5rem;
}
.home-muted {
  color: var(--home-muted);
}
.home-overview {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.6rem;
}
.home-panel {
  padding: 0.75rem;
  border: 1px solid var(--home-line);
  border-radius: 9px;
  background: var(--home-surface);
}
.md-typeset .home-panel ul {
  list-style: none;
  padding: 0;
  margin: 0.65rem 0 0;
}
.md-typeset .home-panel li {
  margin: 0;
}
.home-chart li + li {
  padding-top: 0.5rem;
}
.home-chart a {
  display: flex;
  justify-content: space-between;
  gap: 0.3rem;
  font-size: 0.63rem;
}
.home-bar {
  display: block;
  height: 5px;
  background: var(--home-line);
  border-radius: 5px;
  margin-top: 0.12rem;
}
.home-bar i {
  display: block;
  height: 100%;
  background: var(--course-accent);
  border-radius: inherit;
}
.md-typeset .home .home-footnote {
  font-size: 0.57rem;
  color: var(--home-muted);
  line-height: 1.4;
  margin-top: 0.7rem;
}
.home-activity li + li {
  border-top: 1px solid var(--home-line);
  padding-top: 0.4rem;
  margin-top: 0.4rem;
}
.home-activity a {
  display: block;
  font-size: 0.67rem;
  line-height: 1.35;
}
.home-activity li > span {
  display: block;
  font-size: 0.56rem;
  color: var(--home-muted);
  margin-top: 0.12rem;
}
.md-typeset .home-panel .home-empty {
  font-size: 0.7rem;
  color: var(--home-muted);
  margin-top: 0.65rem;
}
.home-example {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
  gap: 1rem;
  align-items: center;
  padding: 0.9rem;
  background: var(--home-surface);
  border: 1px solid var(--home-line);
  border-radius: 9px;
}
.home-example-image {
  display: block;
  background: #fff;
  border-radius: 5px;
  overflow: hidden;
}
.home-example-image img {
  display: block;
  width: 100%;
  height: auto;
}
.md-typeset .home-example p {
  font-size: 0.72rem;
  margin: 0.4rem 0;
}
.md-typeset .home-example .home-eyebrow {
  color: var(--home-green);
}
.home-example a {
  font-size: 0.7rem;
}
.home-tutorials a {
  display: inline-block;
  margin-right: 0.35rem;
}
.home-puzzles {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.6rem;
}
.home-puzzles > a {
  display: block;
  padding: 0.55rem;
  border-left: 3px solid var(--home-green);
  background: var(--home-surface);
  border-radius: 0 6px 6px 0;
}
.home-puzzles b {
  display: block;
  font-size: 0.72rem;
}
.home-puzzles span {
  display: block;
  font-size: 0.62rem;
  font-weight: 400;
  color: var(--home-muted);
  margin-top: 0.2rem;
}
.home-footer {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0.8rem 0;
  margin-top: 1rem;
  border-top: 1px solid var(--home-line);
  font-size: 0.63rem;
  color: var(--home-muted);
}
.home-view-all {
  display: inline-block;
  margin-top: 0.7rem;
  font-size: 0.7rem;
}
.activity-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1rem;
  margin-bottom: 0.8rem;
  font-size: 0.75rem;
}
.activity-nav [aria-current="page"] {
  font-weight: 750;
  text-decoration: underline;
}
.md-typeset .activity-page h1 {
  margin-bottom: 0.6rem;
}
.md-typeset .activity-page .activity-history {
  margin-top: 0.6rem;
  font-size: 0.72rem;
  color: var(--home-muted);
}
.md-typeset .activity-list {
  list-style: none;
  padding: 0;
  margin: 1rem 0;
}
.md-typeset .activity-list li {
  margin: 0 0 0.6rem;
}
.activity-date {
  font-size: 0.65rem;
  color: var(--home-muted);
}
.md-typeset .activity-list h2 {
  margin: 0.25rem 0;
  font-size: 0.9rem;
}
.activity-context {
  font-size: 0.72rem;
  color: var(--home-muted);
}
.md-typeset .activity-page .activity-empty {
  margin-top: 1rem;
}
@media (max-width: 760px) {
  .home-additional,
  .home-puzzles {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .home-overview {
    grid-template-columns: 1fr 1fr;
  }
  .home-overview > :first-child {
    grid-column: 1 / -1;
  }
  .home-stats {
    min-width: 7rem;
    padding-left: 0.6rem;
  }
  .home-stats > strong {
    font-size: 2.6rem;
  }
}
@media (max-width: 520px) {
  .home .home-hero {
    grid-template-columns: 1fr;
    padding: 0.85rem;
  }
  .home-stats {
    border-left: 0;
    border-top: 1px solid var(--home-line);
    padding: 0.65rem 0 0;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    justify-content: flex-start;
    gap: 0.3rem 0.5rem;
    text-align: left;
  }
  .home-stats > strong {
    font-size: 2rem;
  }
  .home-stats > span {
    font-size: 0.8rem;
  }
  .home-stats > div {
    margin: 0;
    width: 100%;
  }
  .home-stats br {
    display: none;
  }
  .home-stats div > b:not(:first-child) {
    margin-left: 0.4rem;
  }
  .home-featured,
  .home-overview,
  .home-example {
    grid-template-columns: 1fr;
  }
  .home-hero .home-actions {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.6rem;
  }
  .home-course.featured {
    padding: 0.7rem;
  }
}