.story-surface {
  --story-rule: color-mix(in srgb, var(--ink) 20%, transparent);
}

.story-surface-detail {
  margin-inline: calc(-1 * var(--app-gutter));
  padding-inline: var(--app-gutter);
}

.story-surface-detail .story-card.story-reader {
  padding: 1.6rem 1.4rem 1.8rem;
}

.story-collection-title {
  max-width: 10ch;
  margin: clamp(3rem, 10vw, 5.5rem) 0 clamp(2rem, 6vw, 3.5rem);
  color: var(--ink-strong);
}

.story-overview {
  list-style: none;
  padding: 0;
  margin: 0;
  border-top: 1px solid var(--story-rule);
  transition: border-color 160ms ease;
}

.story-overview:has(.story-overview-item:first-child .story-overview-link:hover),
.story-overview:has(.story-overview-item:first-child .story-overview-link:focus-visible) {
  border-top-color: var(--ink-strong);
}

.story-overview-item {
  margin: 0;
  border-bottom: 1px solid var(--story-rule);
  transition: border-color 160ms ease;
}

.story-overview-item:has(+ .story-overview-item .story-overview-link:hover),
.story-overview-item:has(+ .story-overview-item .story-overview-link:focus-visible) {
  border-bottom-color: var(--ink-strong);
}

.story-overview-link {
  display: grid;
  grid-template-columns: 3rem minmax(0, 1fr) auto;
  gap: clamp(0.8rem, 3vw, 2.2rem);
  align-items: start;
  padding: clamp(1.4rem, 4vw, 2.6rem) 0;
  color: var(--ink);
  text-decoration: none;
}

.story-overview-link:hover .story-number,
.story-overview-link:hover .story-overview-action,
.story-overview-link:focus-visible .story-number,
.story-overview-link:focus-visible .story-overview-action {
  color: var(--ink-strong);
}

.story-overview-link:focus-visible,
.story-back-link:focus-visible,
.story-page-link:focus-visible,
.story-selector-label select:focus-visible,
.story-text-link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 5px;
}

.story-number,
.story-position,
.story-overview-action,
.story-selector-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.story-number,
.story-overview-action {
  color: var(--ink);
  transition: color 160ms ease;
}

.story-overview-copy {
  display: grid;
  gap: 0.55rem;
}

.story-overview-title {
  max-width: 24ch;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 3.4rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 0.96;
}

.story-overview-standfirst {
  max-width: 65ch;
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.55;
}

.story-overview-action {
  white-space: nowrap;
}

.story-reader-tools {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: end;
  margin: 0.35rem 0 1.25rem;
  padding-bottom: 0.9rem;
  border-bottom: 1px solid var(--story-rule);
}

.story-back-link {
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
}

.story-selector-label {
  display: grid;
  gap: 0.35rem;
  width: min(24rem, 42vw);
}

.story-selector-label select {
  width: 100%;
  min-height: 2.7rem;
  border: 1px solid var(--ink);
  border-radius: 0.45rem;
  background-color: var(--paper);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='none' stroke='%23141418' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round' d='M1 1.5 6 6.5 11 1.5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.85rem center;
  background-size: 12px 8px;
  color: var(--ink);
  padding: 0.5rem 1.85rem 0.5rem 0.75rem;
  font: 0.9rem/1.25 var(--font-body);
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
}

.story-reader {
  position: relative;
}

.story-reader .story-position {
  margin: 0 0 0.85rem;
}

.story-reader .story-title {
  max-width: 17ch;
  font-size: clamp(2.25rem, 5.9vw, 4.85rem);
  line-height: 0.92;
  margin: 0 0 0.95rem;
}

.story-reader .story-standfirst {
  max-width: 48ch;
  margin: 0 0 clamp(1.95rem, 4.6vw, 4rem);
  color: var(--ink-strong);
  font-family: var(--font-display);
  font-size: clamp(1.16rem, 2.05vw, 1.62rem);
  line-height: 1.27;
}

.story-reader .story-block {
  margin: clamp(2rem, 5vw, 4.5rem) 0;
}

.story-reader .story-block > p,
.story-reader .story-block > ul {
  color: var(--ink-strong);
  font-size: 1.05rem;
  line-height: 1.75;
}

.story-reader .story-block h2 {
  padding-top: 0.6rem;
  border-top: 1px solid var(--story-rule);
  font-size: 0.63rem;
  letter-spacing: 0.145em;
}

.story-reader .challenge-block {
  border-top: 0;
}

.time-models-breakout {
  width: min(60%, 42rem);
  max-width: 100%;
  margin: clamp(2rem, 5vw, 3.25rem) 0;
  padding: 1.35rem 1.35rem 1.45rem;
  background: var(--paper);
  border: 2px solid var(--ink);
  border-radius: 0;
  box-shadow: 6px 6px 0 var(--ink);
}

.time-models-breakout .eyebrow {
  margin: 0 0 0.65rem;
}

.time-models-breakout-note {
  margin: 0 0 1rem;
  max-width: 65ch;
}

.time-models-breakout-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem 1rem;
}

.time-models-breakout .time-mode {
  padding: 1rem 1.05rem 1.1rem;
  background: var(--paper);
  border: 1px solid #e8eaef;
  border-radius: calc(var(--card-radius) - 2px);
}

.time-models-breakout .time-mode h3 {
  font-size: 1.04rem;
  margin: 0 0 0.36rem;
}

.time-models-breakout .time-mode p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.5;
  color: var(--ink-strong);
}

.story-pagination {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 2rem;
  border-top: 1px solid var(--story-rule);
  padding-top: 1rem;
}

.story-page-link {
  display: grid;
  gap: 0.35rem;
  min-height: 7rem;
  padding: 1rem;
  border: 1px solid var(--story-rule);
  color: var(--ink);
  text-decoration: none;
}

.story-page-link.next {
  text-align: right;
}

.story-route-error {
  max-width: 46rem;
  margin: 4rem 0;
  padding: 2rem;
  border: 1px solid var(--accent);
}

.story-route-error h1 {
  margin-top: 0;
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 4rem);
  line-height: 1;
}

.story-text-link {
  display: inline-block;
  margin-top: 1rem;
  text-decoration: none;
}

@media (max-width: 700px) {
  .story-overview-link {
    grid-template-columns: 2rem minmax(0, 1fr);
  }

  .story-overview-action {
    display: none;
  }

  .story-reader-tools {
    display: grid;
    align-items: stretch;
  }

  .story-selector-label {
    width: 100%;
  }

  .time-models-breakout {
    width: 100%;
    padding: 1.1rem 1rem 1.15rem;
    box-shadow: 4px 4px 0 var(--ink);
  }

  .time-models-breakout-grid {
    grid-template-columns: 1fr;
  }

  .story-pagination {
    grid-template-columns: minmax(0, 1fr);
  }

  .story-page-link.next {
    text-align: left;
  }

  .story-page-spacer {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .story-overview-title {
    transition: none;
  }
}