/* The ebook map shares the reader's palette, but has its own compact layout. */
.units-page {
  font-family: var(--interface-font);
}
.units-shell {
  width: min(100% - 3rem, 78rem);
  margin: 0 auto;
}
.units-intro {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(17rem, 0.8fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
  padding: clamp(2.5rem, 6vw, 5rem) 0 2.5rem;
}
.units-intro .eyebrow {
  color: var(--teal);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
}
.units-intro h1 {
  margin: 1rem 0 1.25rem;
  font-family: var(--reading-font);
  font-size: clamp(3rem, 5.5vw, 5rem);
  font-weight: 400;
  line-height: 1.06;
  letter-spacing: -0.05em;
}
.units-intro h1 em {
  color: var(--teal-dark);
  font-weight: 400;
}
.units-lead {
  max-width: 38rem;
  color: var(--muted);
  font-size: 1.0625rem;
  line-height: 1.8;
}
.units-availability {
  display: inline-flex;
  margin: 1.25rem 0 0;
  padding: 0.6rem 0.85rem;
  border: 1px solid var(--rule);
  border-radius: 2rem;
  color: var(--teal-dark);
  background: var(--teal-wash);
  font-size: 0.8125rem;
  font-weight: 600;
}
.units-orientation {
  padding: 1.6rem 1.8rem;
  border: 1px solid var(--rule);
  border-radius: 1.5rem;
  background: var(--surface);
  box-shadow: var(--shadow);
}
.orientation-number {
  display: block;
  color: var(--teal);
  font-family: var(--reading-font);
  font-size: 3.5rem;
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.05em;
}
.orientation-number span {
  color: var(--muted);
  font-size: 1.75rem;
}
.units-orientation h2 {
  margin: 0.8rem 0 0.5rem;
  font-size: 1.125rem;
}
.units-orientation p {
  margin: 0 0 1rem;
  color: var(--muted);
  font-size: 0.875rem;
  line-height: 1.75;
}
.units-orientation a {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  min-height: 2.75rem;
  color: var(--teal-dark);
  font-size: 0.875rem;
  font-weight: 600;
  text-underline-offset: 0.2rem;
}
.units-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border: 1px solid var(--rule);
  border-radius: 1rem;
  background: var(--surface);
}
.unit-stat {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  padding: 1.4rem 1.6rem;
}
.unit-stat + .unit-stat {
  border-left: 1px solid var(--rule);
}
.unit-stat > span {
  color: var(--muted);
  font-size: 0.8125rem;
}
.unit-stat strong {
  color: var(--ink);
  font-family: var(--reading-font);
  font-size: 2rem;
  font-weight: 400;
  line-height: 1.2;
}
.unit-stat small {
  color: var(--muted);
  font-size: 0.75rem;
  line-height: 1.6;
}
.units-local-notice {
  max-width: 63rem;
  margin: 1rem 0;
  color: var(--muted);
  font-size: 0.8125rem;
  line-height: 1.7;
}
.units-action-message {
  margin: 0.5rem 0;
  color: var(--teal-dark);
  font-size: 0.875rem;
}
.units-action-message:empty {
  display: none;
}
.units-catalog {
  padding: 2.25rem 0;
  border-top: 1px solid var(--rule);
}
.units-catalog-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}
.units-catalog-heading .eyebrow {
  margin: 0 0 0.65rem;
  color: var(--muted);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
}
.units-catalog-heading h2 {
  margin: 0;
  font-family: var(--reading-font);
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 400;
  letter-spacing: -0.03em;
}
.units-results-count {
  flex-shrink: 0;
  margin: 0;
  color: var(--muted);
  font-size: 0.8125rem;
}
.units-filters {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(15rem, 0.65fr) auto;
  align-items: stretch;
  gap: 0.75rem;
  padding: 0.75rem;
  border: 1px solid var(--rule);
  border-radius: 1.4rem;
  background: linear-gradient(
    145deg,
    color-mix(in srgb, var(--teal-wash) 58%, var(--surface)),
    var(--surface) 48%
  );
  box-shadow:
    0 1px 0 color-mix(in srgb, var(--surface) 86%, transparent) inset,
    0 18px 45px color-mix(in srgb, var(--ink) 7%, transparent);
}
.units-filters > div {
  position: relative;
  display: grid;
  align-content: center;
  min-width: 0;
  min-height: 5.25rem;
  padding: 0.8rem 1rem 0.7rem;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--rule) 88%, var(--teal));
  border-radius: 1rem;
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  box-shadow:
    0 1px 0 color-mix(in srgb, var(--surface) 92%, transparent) inset,
    0 8px 24px color-mix(in srgb, var(--ink) 4%, transparent);
  transition:
    border-color 0.18s ease,
    box-shadow 0.18s ease,
    transform 0.18s ease;
}
.units-filters > div::before {
  position: absolute;
  top: 0;
  left: 1rem;
  width: 2rem;
  height: 0.2rem;
  border-radius: 0 0 1rem 1rem;
  background: color-mix(in srgb, var(--teal) 72%, transparent);
  content: '';
}
.units-filters > div:focus-within {
  border-color: var(--teal);
  box-shadow:
    0 0 0 3px color-mix(in srgb, var(--teal) 16%, transparent),
    0 14px 30px color-mix(in srgb, var(--ink) 7%, transparent);
  transform: translateY(-1px);
}
.units-filters label {
  display: block;
  margin: 0;
  padding: 0 2rem 0.45rem 0;
  border-bottom: 1px solid color-mix(in srgb, var(--rule) 78%, transparent);
  color: var(--muted);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1.2;
  text-transform: uppercase;
}
.units-filters input,
.units-filters select {
  appearance: none;
  box-sizing: border-box;
  width: 100%;
  min-width: 0;
  min-height: 2.5rem;
  margin: 0;
  padding: 0.6rem 2.25rem 0 0;
  border: 0;
  border-radius: 0;
  outline: 0;
  color: var(--ink);
  background: transparent;
  font: inherit;
  font-size: 0.975rem;
  font-weight: 600;
  line-height: 1.25;
  text-overflow: ellipsis;
}
.units-filters input::placeholder {
  color: color-mix(in srgb, var(--muted) 72%, transparent);
  font-weight: 500;
  opacity: 1;
}
.unit-filter-search::after {
  position: absolute;
  right: 1.1rem;
  bottom: 1.18rem;
  width: 0.8rem;
  height: 0.8rem;
  border: 2px solid var(--teal-dark);
  border-radius: 50%;
  box-shadow: 0 0 0 0.3rem color-mix(in srgb, var(--teal-wash) 78%, transparent);
  content: '';
  opacity: 0.86;
  pointer-events: none;
}
.units-filters > .unit-filter-search::before {
  top: auto;
  right: 0.98rem;
  bottom: 1.08rem;
  left: auto;
  width: 0.5rem;
  height: 2px;
  border-radius: 1rem;
  background: var(--teal-dark);
  transform: rotate(45deg);
  transform-origin: center;
}
.unit-filter-search input {
  padding-right: 2.65rem;
}
.units-filters > div:not(.unit-filter-search)::after {
  position: absolute;
  right: 1.15rem;
  bottom: 1.36rem;
  width: 0.55rem;
  height: 0.55rem;
  border-right: 2px solid var(--teal-dark);
  border-bottom: 2px solid var(--teal-dark);
  content: '';
  pointer-events: none;
  transform: rotate(45deg);
  transform-origin: center;
}
.units-filters button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  min-height: 5.25rem;
  margin: 0;
  padding: 0.8rem 1.2rem;
  border: 1px solid color-mix(in srgb, var(--teal) 34%, var(--rule));
  border-radius: 1rem;
  color: var(--teal-dark);
  background: color-mix(in srgb, var(--teal-wash) 74%, var(--surface));
  box-shadow: 0 8px 24px color-mix(in srgb, var(--ink) 4%, transparent);
  font-size: 0.8rem;
  font-weight: 700;
  white-space: nowrap;
}
.units-filters button::before {
  display: grid;
  width: 1.65rem;
  height: 1.65rem;
  place-items: center;
  border: 2px solid color-mix(in srgb, var(--teal) 48%, var(--rule));
  border-right-color: transparent;
  border-radius: 50%;
  background: transparent;
  content: '';
  transform: rotate(-20deg);
}
.units-filters button:hover:not(:disabled) {
  border-color: var(--teal);
  color: var(--surface);
  background: var(--teal-dark);
  box-shadow: 0 12px 28px color-mix(in srgb, var(--teal-dark) 20%, transparent);
}
.units-filters button:hover:not(:disabled)::before {
  border-color: color-mix(in srgb, var(--surface) 42%, transparent);
  border-right-color: transparent;
}
.units-preview-notice {
  margin: 1rem 0 1.5rem;
  color: var(--muted);
  font-size: 0.8125rem;
  line-height: 1.7;
}
.units-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}
.unit-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 1.4rem;
  border: 1px solid var(--rule);
  border-radius: 1.1rem;
  background: var(--surface);
  scroll-margin-top: 6.5rem;
}
.unit-card[data-available='true'] {
  border-color: var(--teal);
  box-shadow: 0 0 0 1px var(--teal);
}
.unit-card:target {
  outline: 3px solid var(--teal);
  outline-offset: 4px;
}
.unit-card-top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}
.unit-card-number {
  color: var(--teal);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
}
.unit-card-status {
  padding: 0.25rem 0.5rem;
  border: 1px solid var(--rule);
  border-radius: 0.4rem;
  color: var(--muted);
  background: var(--field);
  font-size: 0.75rem;
  line-height: 1.5;
}
.unit-card-status.is-read {
  border-color: var(--teal);
  color: var(--teal-dark);
  background: var(--teal-wash);
}
.unit-card-part {
  margin: 0 0 0.55rem;
  color: var(--muted);
  font-size: 0.75rem;
  line-height: 1.5;
}
.unit-card h3 {
  margin: 0 0 0.75rem;
  color: var(--ink);
  font-family: var(--reading-font);
  font-size: 1.5rem;
  font-weight: 400;
  line-height: 1.25;
  letter-spacing: -0.02em;
  overflow-wrap: anywhere;
}
.unit-card-description {
  margin: 0 0 1.25rem;
  color: var(--muted);
  font-size: 0.8125rem;
  line-height: 1.65;
}
.unit-card-metrics {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 1rem;
  margin: auto 0 0;
  padding: 1rem 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.unit-card-metric dt {
  color: var(--muted);
  font-size: 0.75rem;
  line-height: 1.5;
}
.unit-card-metric dd {
  margin: 0.4rem 0 0;
  color: var(--ink);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.5;
}
.unit-card-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  padding-top: 1rem;
}
.unit-open {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  min-height: 2.75rem;
  padding: 0.6rem 0.9rem;
  border: 1px solid var(--teal);
  border-radius: 0.6rem;
  color: var(--surface);
  background: var(--teal-dark);
  font-size: 0.8125rem;
  font-weight: 600;
  text-decoration: none;
}
.unit-open:hover {
  color: var(--teal-dark);
  background: var(--teal-wash);
}
body[data-theme='night'] .unit-open {
  color: #16251a;
}
body[data-theme='night'] .unit-open:hover {
  color: var(--ink);
}
.unit-read-toggle {
  min-height: 2.75rem;
  margin: 0;
  padding: 0.6rem 0.75rem;
  font-size: 0.75rem;
}
.unit-notebook {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--rule);
  border-radius: 0.6rem;
  color: var(--teal);
  font-size: 0.75rem;
  text-decoration: none;
}
.unit-notebook:hover {
  border-color: var(--teal);
  background: var(--teal-wash);
}
.unit-read-toggle[aria-pressed='true'] {
  border-color: var(--teal);
  color: var(--teal-dark);
  background: var(--teal-wash);
}
.unit-planned {
  display: block;
  min-height: 2.75rem;
  padding: 0.4rem 0;
  color: var(--muted);
  font-size: 0.75rem;
  line-height: 1.6;
}
.units-empty {
  padding: 3rem 1.5rem;
  border: 1px dashed var(--rule);
  border-radius: 1rem;
  text-align: center;
}
.units-empty h3 {
  margin: 0 0 0.7rem;
  font-family: var(--reading-font);
  font-size: 1.75rem;
  font-weight: 400;
}
.units-empty p {
  max-width: 35rem;
  margin: 0 auto 1.5rem;
  color: var(--muted);
  line-height: 1.7;
}
.units-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 2rem 0;
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font-size: 0.75rem;
  line-height: 1.6;
}
.units-footer p {
  margin: 0;
}

@media (max-width: 65rem) {
  .units-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .units-intro {
    gap: 2rem;
  }
  .units-page .header-center {
    margin-left: 0.25rem;
  }
}
@media (max-width: 46rem) {
  .units-shell {
    width: min(100% - 2rem, 78rem);
  }
  .units-page .reader-header {
    flex-wrap: wrap;
    gap: 0.7rem;
    padding: 0.75rem 1rem;
  }
  .units-page .header-center {
    display: none;
  }
  .units-page .reader-actions {
    gap: 0.25rem;
  }
  .units-page .reader-actions .notebook-link {
    min-height: 2.75rem;
    padding: 0.5rem;
    font-size: 0.75rem;
    white-space: normal;
    text-align: center;
  }
  .units-intro {
    grid-template-columns: 1fr;
    padding-top: 2rem;
    gap: 1.5rem;
  }
  .units-intro h1 {
    font-size: clamp(2.5rem, 8vw, 3.5rem);
  }
  .units-orientation {
    padding: 1.25rem;
  }
  .orientation-number {
    float: right;
    margin: 0 0 1rem 1rem;
    font-size: 2.75rem;
  }
  .units-orientation h2 {
    margin-top: 0;
  }
  .units-stats {
    grid-template-columns: 1fr;
  }
  .unit-stat {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 0.5rem 1rem;
    padding: 1rem 1.2rem;
  }
  .unit-stat + .unit-stat {
    border-left: 0;
    border-top: 1px solid var(--rule);
  }
  .unit-stat strong {
    grid-column: 2;
    grid-row: 1 / 3;
    font-size: 1.6rem;
  }
  .unit-stat small {
    grid-column: 1;
  }
  .units-catalog-heading {
    display: block;
  }
  .units-results-count {
    margin-top: 1rem;
  }
  .units-filters {
    grid-template-columns: 1fr auto;
    gap: 0.65rem;
    padding: 0.65rem;
  }
  .unit-filter-search {
    grid-column: 1 / -1;
  }
  .units-filters select,
  .units-filters input {
    font-size: 1rem;
  }
  .units-filters button {
    min-width: 11rem;
  }
  .units-grid {
    grid-template-columns: 1fr;
  }
  .unit-card {
    scroll-margin-top: 7rem;
  }
  .unit-card-actions {
    justify-content: space-between;
  }
  .units-footer {
    display: block;
  }
  .units-footer p {
    margin-top: 0.5rem;
  }
}
@media (max-width: 36rem) {
  .units-filters {
    grid-template-columns: 1fr;
  }
  .units-filters button {
    width: 100%;
    min-width: 0;
    min-height: 3.75rem;
  }
}
@media (max-width: 24rem) {
  .units-page .reader-header .brand {
    gap: 0.4rem;
  }
  .units-page .brand-icon {
    width: 2rem;
    height: 2rem;
  }
  .units-page .brand-text {
    font-size: 1.3rem;
  }
  .units-page .brand-subtitle {
    font-size: 0.75rem;
    letter-spacing: 0.08em;
  }
  .units-page .reader-actions {
    max-width: 67%;
  }
  .units-filters > div {
    min-height: 4.9rem;
    padding-inline: 0.85rem;
  }
  .units-filters label {
    padding-right: 1.5rem;
  }
  .unit-filter-search::after,
  .units-filters > div:not(.unit-filter-search)::after {
    right: 0.95rem;
  }
}
@media print {
  .units-page .reader-header,
  .units-filters,
  .units-local-notice,
  .units-action-message,
  .unit-card-actions,
  .units-empty {
    display: none;
  }
  .units-shell {
    width: 100%;
  }
  .units-intro {
    padding-top: 0;
  }
  .units-stats,
  .unit-card,
  .units-orientation {
    box-shadow: none;
    break-inside: avoid;
  }
  .units-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .units-catalog {
    padding: 1rem 0;
  }
}