/* Chapter modules, the continue card, and the map grouped by chapter. */

.learn-page,
.mm-map,
.home-page {
  max-width: 72rem;
}

.module-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(16.5rem, 1fr));
  gap: 0.85rem;
  margin: 0.4rem 0 1.4rem;
}

.module-tile {
  --accent: var(--teal);
  --wash: #e7f4f1;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 0.75rem;
  align-items: center;
  min-height: 7.4rem;
  padding: 0.95rem 1rem 0.95rem 1.15rem;
  border-radius: 1.15rem;
  border: 1px solid color-mix(in srgb, var(--accent) 28%, var(--line));
  background:
    linear-gradient(165deg, var(--wash), var(--card) 58%);
  color: inherit;
  text-decoration: none;
  box-shadow: 0 1px 0 rgb(28 36 48 / 4%), 0 10px 24px rgb(28 36 48 / 4%);
  position: relative;
  overflow: hidden;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.module-tile::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 7px;
  background: var(--accent);
}

.module-tile:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
  box-shadow: 0 14px 28px color-mix(in srgb, var(--accent) 18%, transparent);
}

.module-tile:focus-visible,
.module-item:focus-visible,
.learn-row:focus-visible,
.learn-continue-link:focus-visible,
.module-subnav a:focus-visible,
.term-pills a:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

.module-num {
  font-family: Georgia, "Iowan Old Style", Palatino, serif;
  font-size: 1.9rem;
  font-weight: 700;
  line-height: 1;
  color: var(--accent);
  width: 1.6rem;
}

.module-copy {
  display: flex;
  flex-direction: column;
  gap: 0.12rem;
  min-width: 0;
}

.module-kicker,
.learn-row-section {
  color: var(--accent, var(--focus));
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.module-title {
  font-family: Georgia, "Iowan Old Style", Palatino, serif;
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.15;
}

.module-meta,
.module-cite,
.map-chapter-meta,
.learn-objective {
  color: var(--muted);
  margin: 0.15rem 0 0;
}

.module-ring,
.module-head-ring,
.map-chapter-ring {
  display: grid;
  justify-items: center;
  gap: 0.05rem;
}

.module-fraction {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent, var(--teal));
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.progress-ring {
  width: 3.35rem;
  height: 3.35rem;
  display: block;
}

.progress-ring-track,
.progress-ring-value {
  fill: none;
  stroke-width: 3.4;
}

.progress-ring-track { stroke: color-mix(in srgb, var(--accent, var(--teal)) 18%, var(--empty)); }

.progress-ring-value {
  stroke: var(--accent, var(--teal));
  stroke-linecap: round;
}

.learn-continue {
  --accent: var(--teal);
  --wash: #e7f4f1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.25rem 1rem;
  align-items: center;
  margin: 1rem 0 1.15rem;
  padding: 1.05rem 1.15rem 1.15rem;
  border-radius: 1.2rem;
  border: 1px solid color-mix(in srgb, var(--accent) 38%, var(--line));
  background:
    linear-gradient(120deg, var(--wash), var(--card) 62%);
  box-shadow: 0 12px 28px color-mix(in srgb, var(--accent) 12%, transparent);
}

.learn-continue h2 { margin: 0; font-size: clamp(1.45rem, 3vw, 1.9rem); }

.learn-continue p { margin: 0; }

.learn-continue-link,
.home-start-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  margin-top: 0.45rem;
  padding: 0.35rem 1.05rem;
  border-radius: 999px;
  background: var(--accent, var(--teal));
  color: white;
  font-weight: 700;
  text-decoration: none;
  justify-self: start;
}

.learn-continue-link:hover,
.home-start-link:hover { filter: brightness(1.08); }

.module-head {
  --accent: var(--teal);
  --wash: #e7f4f1;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.8rem;
  align-items: center;
  margin: 0.4rem 0 0.8rem;
  padding: 1rem 1.1rem;
  border-radius: 1.15rem;
  background: linear-gradient(160deg, var(--wash), var(--card) 70%);
  border: 1px solid color-mix(in srgb, var(--accent) 30%, var(--line));
}

.module-head h1 { margin-bottom: 0.35rem; }

.module-head p { margin: 0.2rem 0 0; }

.module-open { color: var(--muted); }

.module-items {
  list-style: none;
  margin: 0.4rem 0 1rem;
  padding: 0;
  display: grid;
  gap: 0.6rem;
}

.module-item {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 0.8rem;
  align-items: center;
  min-height: 4.6rem;
  padding: 0.75rem 0.95rem;
  border-radius: 1rem;
  background: var(--card);
  border: 1px solid var(--line);
  color: inherit;
  text-decoration: none;
  box-shadow: 0 1px 0 rgb(28 36 48 / 3%);
}

.module-item:hover { border-color: var(--accent, var(--teal)); }

.module-item-index {
  width: 2.6rem;
  height: 2.6rem;
  display: grid;
  place-items: center;
  border-radius: 999px;
  background: var(--wash, #e7f4f1);
  color: var(--accent, var(--teal-deep));
  font-weight: 700;
}

.module-item-copy {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  min-width: 0;
}

.module-item-copy span,
.home-tile span { color: var(--muted); font-size: 0.92rem; }

.module-item-go {
  color: var(--accent, var(--teal));
  font-weight: 700;
  font-size: 0.85rem;
}

.module-subnav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0.2rem 0 1rem;
}

.module-subnav a,
.term-pills a,
.learn-row {
  text-decoration: none;
}

.module-subnav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0.2rem 0.8rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--ink);
  font-weight: 700;
}

.module-subnav a[aria-current="page"] {
  background: var(--accent, var(--teal));
  border-color: transparent;
  color: white;
}

.learn-rows,
.term-pills {
  list-style: none;
  margin: 0.5rem 0 0;
  padding: 0;
}

.learn-rows { display: grid; gap: 0.55rem; }

.learn-row {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.1rem;
  min-height: 3.5rem;
  padding: 0.7rem 0.95rem;
  border-radius: 0.95rem;
  background: var(--card);
  border: 1px solid var(--line);
  color: inherit;
}

.learn-row:hover,
.term-pills a:hover { border-color: var(--teal); }

.learn-row-title { font-weight: 700; color: var(--teal-deep); }

.term-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.term-pills a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0.15rem 0.85rem;
  border-radius: 999px;
  background: var(--card);
  border: 1px solid var(--line);
  color: var(--teal-deep);
  font-weight: 700;
}

.learn-crumbs { margin-top: 0; }

.learn-crumbs a { color: var(--teal-deep); font-weight: 700; }

.learn-example h2 { font-size: 1.25rem; }

.map-chapter {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.15rem 0.8rem;
  align-items: center;
  margin: 1.3rem 0;
}

.map-chapter h2 {
  grid-column: 1;
  margin: 0;
  font-size: 1.45rem;
}

.map-ch-num {
  display: inline-grid;
  place-items: center;
  width: 1.8rem;
  height: 1.8rem;
  margin-right: 0.35rem;
  border-radius: 999px;
  background: var(--wash, #e7f4f1);
  color: var(--accent, var(--teal));
  font-size: 0.95rem;
}

.map-chapter-meta { grid-column: 1; }

.map-chapter-ring { grid-column: 2; grid-row: 1 / span 2; }

.map-chapter .lesson-list { grid-column: 1 / -1; margin-top: 0.45rem; }

@media (min-width: 760px) {
  .learn-continue {
    grid-template-columns: 1fr auto;
  }

  .learn-continue .kicker,
  .learn-continue h2,
  .learn-continue p { grid-column: 1; }

  .learn-continue-link {
    grid-column: 2;
    grid-row: 1 / span 3;
    margin-top: 0;
  }
}

@media (max-width: 599px) {
  .module-grid { grid-template-columns: 1fr; }

  .module-head,
  .map-chapter { grid-template-columns: 1fr; }

  .map-chapter-ring { grid-column: 1; grid-row: auto; justify-self: start; }

  .module-item-go { display: none; }

  .module-tile,
  .module-item,
  .learn-continue-link,
  .home-start-link,
  .module-subnav a,
  .term-pills a { min-height: 44px; }
}

@media (prefers-reduced-motion: reduce) {
  .module-tile { transition: none; }
  .module-tile:hover { transform: none; }
}