/* AI skimmable layout — light + dark via existing CSS variables */

.ai-skim {
  font-family: var(--font-sans);
}

.ai-30 {
  margin: 0 0 1.25rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-elevated);
}

.ai-30__label {
  margin: 0 0 0.65rem;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.ai-30__biggest {
  margin: 0 0 0.75rem;
  font-family: var(--font-serif);
  font-size: 0.98rem;
  line-height: 1.45;
  color: var(--text);
}

.ai-30__list {
  margin: 0;
  padding-left: 1.2rem;
  font-size: 0.85rem;
  line-height: 1.45;
  color: var(--text);
}

.ai-30__list li {
  margin-bottom: 0.4rem;
}

.ai-30__list a {
  font-weight: 600;
  text-decoration: none;
}

.ai-30__list a:hover {
  text-decoration: underline;
}

/* Filter chips */
.ai-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0 0 1.5rem;
  position: sticky;
  top: 0.5rem;
  z-index: 3;
  padding: 0.4rem 0;
  background: linear-gradient(180deg, var(--bg) 60%, transparent);
}

.ai-chip {
  appearance: none;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text-muted);
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  padding: 0.35rem 0.6rem;
  border-radius: 2px;
  cursor: pointer;
  line-height: 1.2;
}

.ai-chip:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.ai-chip--active {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-soft);
}

.ai-section {
  margin-bottom: 1.75rem;
  scroll-margin-top: calc(var(--header-offset, 3.25rem) + 3.25rem);
}

.ai-section__title {
  margin: 0 0 0.75rem;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text);
}

/* Compact expandable cards — full width, large tap targets on phone */
.ai-card-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  width: 100%;
}

.ai-card {
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-elevated);
  padding: 0;
  width: 100%;
}

.ai-card__summary {
  list-style: none;
  cursor: pointer;
  padding: 0.9rem 1rem;
  min-height: var(--tap-min, 44px);
  -webkit-tap-highlight-color: transparent;
}

.ai-card__summary::-webkit-details-marker {
  display: none;
}

.ai-card__summary::marker {
  content: "";
}

.ai-card__title-row {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}

.ai-card__title {
  font-size: 0.98rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--text);
  overflow-wrap: anywhere;
}

.ai-card__title-row::before {
  content: "▸";
  color: var(--text-muted);
  font-size: 0.75rem;
  line-height: 1.5;
  flex-shrink: 0;
}

.ai-card[open] .ai-card__title-row::before {
  content: "▾";
}

.ai-card__takeaway {
  margin: 0.35rem 0 0.5rem;
  font-size: 0.82rem;
  line-height: 1.4;
  color: var(--text-muted);
}

.ai-card__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 0.45rem;
}

.ai-tag {
  display: inline-block;
  padding: 0.1rem 0.4rem;
  border: 1px solid var(--border);
  border-radius: 2px;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--badge-ai);
  border-color: currentColor;
}

.ai-tag--agent {
  text-transform: none;
  letter-spacing: 0.01em;
  font-weight: 600;
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-soft);
}

.ai-domain {
  display: inline-block;
  font-size: 0.68rem;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}

.ai-card__body {
  padding: 0 1rem 1rem;
  border-top: 1px solid var(--border);
  font-family: var(--font-serif);
  font-size: 1rem;
  line-height: 1.6;
  overflow-wrap: anywhere;
}

.ai-card__body a {
  overflow-wrap: anywhere;
  word-break: break-word;
}

.ai-card__body > .ai-card__full > p {
  margin: 0.75rem 0 0;
}

.ai-card__body > .ai-card__full > p:first-child {
  margin-top: 0.75rem;
}

.ai-card__full li {
  margin-bottom: 0.35rem;
}

/* Dense papers / repos — stacked cards on phone, table from 768px */
.ai-dense {
  width: 100%;
  max-width: 100%;
  overflow: visible;
  border: none;
  background: transparent;
}

.ai-dense__table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  line-height: 1.4;
}

.ai-dense__table thead {
  display: none;
}

.ai-dense__table tbody,
.ai-dense__table tr,
.ai-dense__table td {
  display: block;
  width: 100%;
}

.ai-dense__table tr {
  margin: 0 0 0.65rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-elevated);
}

.ai-dense__table td {
  padding: 0.2rem 0;
  border: none;
  vertical-align: top;
}

.ai-dense__name {
  font-weight: 600;
  font-size: 0.95rem;
  line-height: 1.35;
  margin-bottom: 0.35rem;
  overflow-wrap: anywhere;
}

.ai-dense__name a {
  text-decoration: none;
  color: var(--text);
}

.ai-dense__name a:hover {
  color: var(--accent);
  text-decoration: underline;
}

.ai-dense__takeaway {
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.45;
}

.ai-dense__meta {
  margin-top: 0.45rem;
  color: var(--text-muted);
  font-size: 0.8rem;
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
}

.ai-dense__meta a {
  overflow-wrap: anywhere;
  word-break: break-word;
}

.ai-dense__details > summary {
  cursor: pointer;
  list-style: none;
  min-height: var(--tap-min, 44px);
  display: flex;
  align-items: flex-start;
  padding: 0.25rem 0;
  -webkit-tap-highlight-color: transparent;
}

.ai-dense__details > summary::-webkit-details-marker {
  display: none;
}

.ai-dense__details > summary::before {
  content: "▸ ";
  color: var(--text-muted);
  font-size: 0.7rem;
  flex-shrink: 0;
  margin-top: 0.15rem;
}

.ai-dense__details[open] > summary::before {
  content: "▾ ";
}

.ai-dense__full {
  margin-top: 0.5rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--border);
  font-family: var(--font-serif);
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--text);
  overflow-wrap: anywhere;
}

@media (min-width: 768px) {
  .ai-dense {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    border: 1px solid var(--border);
    border-radius: 4px;
    background: var(--bg-elevated);
  }

  .ai-dense__table {
    display: table;
    font-size: 0.8rem;
    line-height: 1.35;
  }

  .ai-dense__table thead {
    display: table-header-group;
  }

  .ai-dense__table tbody {
    display: table-row-group;
  }

  .ai-dense__table tr {
    display: table-row;
    margin: 0;
    padding: 0;
    border: none;
    border-radius: 0;
    background: transparent;
  }

  .ai-dense__table th {
    display: table-cell;
    text-align: left;
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-muted);
    padding: 0.55rem 0.65rem;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
  }

  .ai-dense__table td {
    display: table-cell;
    width: auto;
    padding: 0.55rem 0.65rem;
    border-bottom: 1px solid var(--border);
  }

  .ai-dense__table tr:last-child td {
    border-bottom: none;
  }

  .ai-dense__name {
    white-space: nowrap;
    max-width: 14rem;
    font-size: inherit;
    margin-bottom: 0;
  }

  .ai-dense__name a {
    color: var(--link);
  }

  .ai-dense__takeaway {
    min-width: 12rem;
    font-size: inherit;
  }

  .ai-dense__meta {
    white-space: nowrap;
    margin-top: 0;
    font-size: inherit;
  }

  .ai-dense__details > summary {
    min-height: 0;
    display: list-item;
    padding: 0;
  }

  .ai-dense__full {
    font-size: 0.88rem;
  }
}

.ai-skim__fallback {
  margin: 1.25rem 0 0;
  font-size: 0.75rem;
}

.ai-skim__fallback-btn {
  appearance: none;
  background: none;
  border: none;
  padding: 0;
  color: var(--text-muted);
  font-family: var(--font-sans);
  font-size: 0.75rem;
  text-decoration: underline;
  cursor: pointer;
}

.ai-skim__fallback-btn:hover {
  color: var(--accent);
}

.ai-30 {
  padding: 0.9rem 1rem;
}

.ai-30__biggest {
  font-size: 1rem;
  line-height: 1.5;
}