:root {
  --bg: var(--site-color-page);
  --bg-deep: var(--site-color-surface-subtle);
  --ink: var(--site-color-text);
  --muted: var(--site-color-text-muted);
  --accent: var(--site-color-accent);
  --accent-ink: var(--site-color-accent-strong);
  --line: var(--site-color-border);
  --surface: var(--site-color-surface);
  --max: var(--site-reading-width);
  --display: var(--md-ref-typeface-brand);
  --body: var(--md-ref-typeface-plain);
  --ui: var(--md-ref-typeface-brand);
}

* { box-sizing: border-box; }
html { font-size: 18px; scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: var(--body);
  line-height: 1.6;
  background: var(--bg);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.wrap { width: min(100% - 2rem, var(--max)); margin-inline: auto; }
.wrap-home { width: min(100% - 2rem, var(--site-content-width)); }

.home-layout {
  display: grid;
  grid-template-columns: minmax(11rem, 13.5rem) minmax(0, 1fr) minmax(11rem, 13.5rem);
  grid-template-areas: "right center left";
  gap: 1.5rem 1.75rem;
  align-items: start;
  padding-top: 1.25rem;
  padding-bottom: 3rem;
}
.home-rail-left {
  grid-area: left;
  max-height: calc(100vh - 5.5rem);
  overflow-y: auto;
  scrollbar-width: thin;
}
.digest-feed-home { grid-area: center; }
.home-rail-right { grid-area: right; }
.home-rail {
  font-family: var(--ui);
  position: sticky;
  top: 4.25rem;
}
.rail-title {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-ink);
  margin: 0 0 0.85rem;
}
.rail-subtitle {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 1.35rem 0 0.65rem;
}
.rail-empty {
  margin: 0;
  font-size: 0.85rem;
  color: var(--muted);
}
.channel-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}
.channel-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--ink);
  padding: 0.35rem 0;
  border-bottom: 1px solid transparent;
  font-size: 0.88rem;
  font-weight: 600;
}
.channel-row:hover {
  color: var(--accent);
  border-bottom-color: var(--line);
}
.channel-row-name {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.channel-row-count {
  flex-shrink: 0;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}
.stat-list {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}
.stat-list div {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}
.stat-list dt {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}
.stat-list dd {
  margin: 0;
  font-family: var(--display);
  font-size: 1.65rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
}
.chips-rail {
  margin-top: 0;
}
.chip-count {
  opacity: 0.7;
  font-size: 0.85em;
  margin-left: 0.15rem;
}

.skip-link {
  position: absolute; left: -999px; top: 0;
  background: var(--md-sys-color-inverse-surface); color: var(--md-sys-color-on-inverse-surface); padding: .5rem 1rem;
}
.skip-link:focus { left: 1rem; z-index: 10; }

.site-header {
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--md-sys-color-surface) 88%, transparent);
  backdrop-filter: blur(10px);
  position: sticky; top: 0; z-index: 5;
}
.site-header .wrap {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.85rem 0;
}
.brand {
  font-family: var(--display);
  font-weight: 700;
  letter-spacing: -0.02em;
  text-decoration: none;
  color: var(--ink);
  font-size: 1.15rem;
}
nav a {
  font-family: var(--ui);
  color: var(--muted);
  text-decoration: none;
  margin-left: 1.1rem;
  font-size: 0.85rem;
  font-weight: 600;
}
nav a:hover, a:hover { color: var(--accent); }

.breadcrumbs {
  padding: 0.65rem 0 0;
}
.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 0.45rem;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--ui);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--muted);
}
.breadcrumbs li {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  min-width: 0;
}
.breadcrumbs li:not(:last-child)::after {
  content: "/";
  color: var(--line);
  font-weight: 500;
}
.breadcrumbs a {
  margin-left: 0;
  color: var(--muted);
  text-decoration: none;
}
.breadcrumbs a:hover { color: var(--accent); }
.breadcrumbs [aria-current="page"] {
  color: var(--ink);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: min(36rem, 70vw);
}

.hero {
  padding: 1.75rem 0 1.25rem;
  animation: rise 0.55s ease both;
}
.brand-mark {
  font-family: var(--ui);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-ink);
  margin: 0 0 0.5rem;
}
.hero h1 {
  font-family: var(--display);
  font-size: clamp(1.85rem, 4.5vw, 2.6rem);
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin: 0 0 0.6rem;
}
.lede {
  color: var(--muted);
  max-width: 32rem;
  margin: 0;
  font-size: var(--md-sys-typescale-body-large);
}

.digest-feed {
  display: flex;
  flex-direction: column;
  gap: 0;
  padding-bottom: 3.5rem;
}
.digest-feed-home {
  padding-top: 0;
  padding-bottom: 0;
  min-width: 0;
}

.digest {
  padding: 1.75rem 0 2rem;
  border-top: 1px solid var(--line);
  animation: rise 0.6s ease both;
}
.digest:nth-child(1) { animation-delay: 0.05s; }
.digest:nth-child(2) { animation-delay: 0.12s; }
.digest:nth-child(3) { animation-delay: 0.18s; }

.digest-layout {
  display: grid;
  grid-template-columns: minmax(9rem, 12.5rem) 1fr;
  gap: 1.25rem 1.5rem;
  align-items: start;
}
.digest-thumb {
  margin: 0;
  position: sticky;
  top: 4.5rem;
}
.digest-thumb a {
  display: block;
  line-height: 0;
  text-decoration: none;
}
.digest-thumb img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
  background: var(--line);
  border-radius: 0.35rem;
}
.digest-body { min-width: 0; }

.digest-header { margin-bottom: 0.85rem; }
.digest-meta {
  font-family: var(--ui);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--muted);
  margin: 0 0 0.4rem;
}
.digest-meta a {
  color: var(--accent-ink);
  text-decoration: none;
}
.digest-title {
  font-family: var(--display);
  font-size: clamp(1.25rem, 3vw, 1.55rem);
  letter-spacing: -0.02em;
  line-height: 1.25;
  margin: 0;
}
.digest-title a {
  color: inherit;
  text-decoration: none;
  text-decoration-color: transparent;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.16em;
  transition: color 0.18s ease, text-decoration-color 0.18s ease;
}
.digest-title a:hover {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: color-mix(in srgb, var(--md-sys-color-primary) 45%, transparent);
}
.digest-title a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 0.12rem;
}

.digest-summary {
  margin: 0 0 1.1rem;
  font-size: 1.05rem;
  color: var(--ink);
}

.article-downloads {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin: -0.25rem 0 1.5rem;
}

.policy-page {
  padding-top: 1.5rem;
  padding-bottom: 3rem;
}
.policy-article {
  max-width: 42rem;
}
.policy-header {
  margin-bottom: 2rem;
}
.policy-header h1 {
  font-family: var(--display);
  font-size: clamp(2rem, 7vw, 4rem);
  line-height: 0.95;
  margin: 0.25rem 0 1rem;
}
.policy-intro {
  color: var(--muted);
  font-size: 1.12rem;
  margin: 0;
}
.policy-article section {
  border-top: 1px solid var(--line);
  padding-top: 1.25rem;
  margin-top: 1.25rem;
}
.policy-article h2 {
  font-family: var(--ui);
  font-size: 0.95rem;
  line-height: 1.25;
  margin: 0 0 0.5rem;
}
.policy-article p,
.policy-article li {
  color: var(--ink);
}
.policy-article ul {
  margin: 0;
  padding-left: 1.1rem;
}
.policy-contact {
  font-family: var(--ui);
}
.policy-contact a {
  color: var(--accent);
}

.digest-takeaways h3 {
  font-family: var(--ui);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-ink);
  margin: 0 0 0.65rem;
}
.digest-takeaways ol {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: takeaway;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}
.digest-takeaways li {
  counter-increment: takeaway;
  padding-left: 1.75rem;
  position: relative;
}
.digest-takeaways li::before {
  content: counter(takeaway);
  position: absolute;
  left: 0;
  top: 0.1rem;
  font-family: var(--ui);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent);
  width: 1.25rem;
  height: 1.25rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  display: grid;
  place-items: center;
  background: var(--surface);
}
.digest-takeaways strong {
  font-family: var(--ui);
  font-size: 0.95rem;
}
.digest-takeaways p {
  margin: 0.25rem 0 0;
  color: var(--muted);
  font-size: 0.98rem;
}

.ts {
  font-family: var(--ui);
  font-size: 0.78rem;
  font-weight: 600;
  margin-left: 0.4rem;
  color: var(--accent);
  text-decoration: none;
}
.ts:hover { text-decoration: underline; }

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  list-style: none;
  padding: 0;
  margin: 1.1rem 0 0;
}
.chip {
  display: inline-flex;
  align-items: center;
  font-family: var(--ui);
  font-size: 0.78rem;
  font-weight: 600;
  text-decoration: none;
  padding: 0.28rem 0.65rem;
  border: 1px solid var(--line);
  border-radius: 0.35rem;
  background: var(--surface);
  color: var(--ink);
  transition: border-color 0.15s ease, background 0.15s ease, color 0.15s ease;
}
a.chip:hover {
  border-color: var(--accent);
  color: var(--accent-ink);
  background: var(--md-sys-color-primary-container);
}
.chip-channel {
  border-color: var(--md-sys-color-primary-container);
  background: var(--md-sys-color-primary-container);
  color: var(--accent-ink);
}
.chip-topic {
  color: var(--muted);
}
.topics {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  list-style: none;
  padding: 0;
  margin: 1rem 0 0;
}
.topics a {
  display: inline-flex;
  font-family: var(--ui);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--muted);
  text-decoration: none;
  padding: 0.28rem 0.65rem;
  border: 1px solid var(--line);
  border-radius: 0.35rem;
  background: var(--surface);
}
.topics a:hover {
  border-color: var(--accent);
  color: var(--accent-ink);
}

.digest-actions {
  margin: 1.25rem 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  align-items: center;
  font-family: var(--ui);
  font-size: 0.88rem;
  font-weight: 600;
}
.action-primary {
  color: var(--md-sys-color-on-primary);
  background: var(--accent);
  text-decoration: none;
  padding: 0.45rem 0.9rem;
  border-radius: 0.35rem;
}
.action-primary:hover { background: var(--md-sys-color-on-primary-container); color: var(--md-sys-color-on-primary); }
.action-secondary {
  display: inline-flex;
  align-items: center;
  min-height: 2.25rem;
  padding: 0.48rem 0.85rem;
  border: 1px solid color-mix(in srgb, var(--accent) 34%, var(--line));
  border-radius: 0.35rem;
  background: color-mix(in srgb, var(--accent) 7%, var(--md-sys-color-surface));
  color: var(--accent-ink);
  font-family: var(--ui);
  font-size: 0.85rem;
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
  transition: border-color 0.18s ease, background 0.18s ease, color 0.18s ease;
}
.action-secondary:hover {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 12%, var(--md-sys-color-surface));
  color: var(--accent-ink);
}
.action-secondary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}
.action-muted {
  color: var(--muted);
  text-decoration: none;
}
.action-muted:hover { color: var(--accent); }

.empty { color: var(--muted); padding: 2rem 0; }

/* Search */
.search-hero {
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--line);
}
.search-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.7rem;
  max-width: 42rem;
  margin-top: 1.4rem;
}
.search-form input {
  min-width: 0;
  min-height: 2.65rem;
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: 0.35rem;
  background: var(--surface);
  color: var(--ink);
  font: 500 0.95rem var(--ui);
}
.search-form input:focus {
  outline: 2px solid color-mix(in srgb, var(--accent) 55%, transparent);
  outline-offset: 2px;
  border-color: var(--accent);
}
.search-form button {
  min-height: 2.65rem;
  padding: 0.55rem 1rem;
  border: 0;
  border-radius: 0.35rem;
  background: var(--accent);
  color: var(--md-sys-color-on-primary);
  font: 700 0.9rem var(--ui);
  cursor: pointer;
}
.search-form button:hover { background: var(--accent-ink); }
.search-form button:disabled {
  cursor: wait;
  opacity: 0.88;
}
.search-form.is-searching input {
  cursor: wait;
}
.search-status {
  min-height: 1.25rem;
  margin: 0.7rem 0 0;
  color: var(--accent-ink);
  font-family: var(--ui);
  font-size: 0.85rem;
  font-weight: 600;
}
.search-status:empty {
  visibility: hidden;
}
.search-results {
  padding-bottom: 3.5rem;
}
.search-summary {
  display: flex;
  gap: 0.4rem;
  align-items: baseline;
  padding: 1.35rem 0 0.35rem;
  color: var(--muted);
  font-family: var(--ui);
  font-size: 0.9rem;
}
.search-summary strong {
  color: var(--ink);
  font-size: 1.05rem;
}
.search-result {
  padding: 1.35rem 0 1.55rem;
  border-top: 1px solid var(--line);
}
.search-result:first-of-type {
  border-top: 0;
}
.search-result h2 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(1.2rem, 3vw, 1.45rem);
  line-height: 1.25;
}
.search-result h2 a {
  color: inherit;
  text-decoration: none;
}
.search-result h2 a:hover {
  color: var(--accent-ink);
  text-decoration: underline;
  text-decoration-color: color-mix(in srgb, var(--md-sys-color-primary) 40%, transparent);
  text-underline-offset: 0.16em;
}
.search-snippet {
  max-width: 45rem;
  margin: 0.6rem 0 0;
  color: var(--ink);
}
.search-match-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 1rem;
  align-items: center;
  margin-top: 0.75rem;
}
.search-match-meta .chips {
  margin: 0;
}
.search-fields {
  margin: 0;
  color: var(--muted);
  font-family: var(--ui);
  font-size: 0.8rem;
  font-weight: 600;
}

/* Knowledge graph */
.graph-page {
  width: min(100% - 2rem, var(--site-content-width));
  padding-top: 1.35rem;
  padding-bottom: 3.5rem;
}
.graph-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1.25rem;
  align-items: end;
  padding-bottom: 1.15rem;
  border-bottom: 1px solid var(--line);
}
.graph-snapshot {
  margin: 0;
  min-width: 12rem;
  text-align: right;
  color: var(--muted);
  font-family: var(--ui);
  font-size: 0.78rem;
}
.graph-snapshot strong {
  display: block;
  color: var(--ink);
  font-family: var(--display);
  font-size: 1.15rem;
  line-height: 1.1;
}
.graph-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1.1rem 0 1rem;
  font-family: var(--ui);
}
.graph-tab {
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--muted);
  border-radius: 0.35rem;
  padding: 0.45rem 0.75rem;
  font-family: var(--ui);
  font-weight: 700;
  font-size: 0.82rem;
  cursor: pointer;
}
.graph-tab[aria-selected="true"] {
  border-color: var(--accent);
  background: var(--md-sys-color-primary-container);
  color: var(--accent-ink);
}
.graph-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(17rem, 21rem);
  gap: 1.25rem;
  align-items: start;
}
.graph-shell {
  min-width: 0;
  border-top: 1px solid var(--line);
  padding-top: 0.9rem;
}
.graph-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.8rem;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.8rem;
  font-family: var(--ui);
}
.graph-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}
.graph-filter {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 0.35rem;
  background: color-mix(in srgb, var(--md-sys-color-surface) 72%, transparent);
  padding: 0.28rem 0.55rem;
}
.graph-filter input {
  accent-color: var(--accent);
}
.graph-search {
  border: 1px solid var(--line);
  border-radius: 0.35rem;
  background: var(--surface);
  min-height: 2rem;
  padding: 0.35rem 0.55rem;
  font-family: var(--ui);
  font-size: 0.82rem;
  color: var(--ink);
  width: min(100%, 13rem);
}
.graph-canvas {
  position: relative;
  overflow: hidden;
  min-height: 30rem;
  background: color-mix(in srgb, var(--md-sys-color-surface) 42%, transparent);
  border: 1px solid var(--line);
  border-radius: 0.35rem;
  padding: 0.85rem;
}
.kg-summary {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.8rem;
  align-items: baseline;
  justify-content: space-between;
  font-family: var(--ui);
  margin-bottom: 0.85rem;
}
.kg-summary strong {
  color: var(--ink);
  font-size: 0.98rem;
}
.kg-summary span,
.kg-more {
  color: var(--muted);
  font-size: 0.76rem;
  font-family: var(--ui);
}
.kg-clusters {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}
.kg-cluster {
  background: color-mix(in srgb, var(--md-sys-color-surface) 62%, transparent);
  border: 1px solid var(--line);
  border-left: 0.35rem solid var(--accent);
  border-radius: 0.35rem;
  min-width: 0;
  overflow: hidden;
}
.kg-cluster.concept { border-left-color: var(--md-sys-color-concept); }
.kg-cluster.entity { border-left-color: var(--md-sys-color-entity); }
.kg-cluster.technique { border-left-color: var(--md-sys-color-technique); }
.kg-cluster.article { border-left-color: var(--md-sys-color-article); }
.kg-cluster-main {
  appearance: none;
  width: 100%;
  border: 0;
  border-bottom: 1px solid color-mix(in srgb, var(--md-sys-color-outline-variant) 72%, transparent);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  display: grid;
  gap: 0.22rem;
  padding: 0.75rem 0.85rem 0.7rem;
  text-align: left;
  font-family: var(--ui);
}
.kg-cluster-main:hover,
.kg-related:hover {
  background: color-mix(in srgb, var(--md-sys-color-primary-container) 70%, transparent);
}
.kg-cluster-main strong {
  font-family: var(--display);
  font-size: 1rem;
  line-height: 1.15;
}
.kg-cluster-main span {
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 700;
}
.kg-type {
  color: var(--accent-ink) !important;
  font-size: 0.66rem !important;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.kg-related-list {
  display: flex;
  flex-direction: column;
  gap: 0.28rem;
  padding: 0.55rem;
}
.kg-related {
  appearance: none;
  border: 1px solid transparent;
  border-radius: 0.3rem;
  background: color-mix(in srgb, var(--md-sys-color-surface) 78%, transparent);
  color: var(--ink);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.55rem;
  min-width: 0;
  padding: 0.42rem 0.5rem;
  text-align: left;
  font-family: var(--ui);
  font-size: 0.78rem;
  font-weight: 700;
}
.kg-related span {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.kg-related small {
  color: var(--muted);
  flex: 0 0 auto;
  font-size: 0.68rem;
}
.kg-related.topic { border-left: 0.22rem solid var(--md-sys-color-topic); }
.kg-related.concept { border-left: 0.22rem solid var(--md-sys-color-concept); }
.kg-related.entity { border-left: 0.22rem solid var(--md-sys-color-entity); }
.kg-related.technique { border-left: 0.22rem solid var(--md-sys-color-technique); }
.kg-related.article { border-left: 0.22rem solid var(--md-sys-color-article); }
.kg-related-empty {
  color: var(--muted);
  font-family: var(--ui);
  font-size: 0.76rem;
  padding: 0.35rem 0.3rem;
}
.kg-more {
  margin: 0.85rem 0 0;
}
.graph-empty[hidden] { display: none; }
.graph-detail {
  border-top: 1px solid var(--line);
  padding-top: 0.9rem;
  position: sticky;
  top: 4.5rem;
}
.graph-detail h2 {
  font-family: var(--display);
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin: 0 0 0.35rem;
}
.graph-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.55rem;
  margin: 0 0 1rem;
}
.graph-metrics div {
  border: 1px solid var(--line);
  border-radius: 0.35rem;
  padding: 0.55rem;
  background: color-mix(in srgb, var(--md-sys-color-surface) 62%, transparent);
  font-family: var(--ui);
}
.graph-metrics strong {
  display: block;
  font-family: var(--display);
  font-size: 1.15rem;
  line-height: 1.05;
}
.graph-metrics span,
.evidence-title {
  color: var(--muted);
  font-family: var(--ui);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.evidence-title {
  color: var(--accent-ink);
  margin: 0 0 0.65rem;
}
.graph-evidence {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}
.graph-evidence a {
  color: var(--ink);
  text-decoration: none;
  font-family: var(--ui);
  font-size: 0.9rem;
  font-weight: 700;
  line-height: 1.25;
}
.graph-evidence a:hover { color: var(--accent); }
.graph-evidence p {
  margin: 0.18rem 0 0;
  color: var(--muted);
  font-size: 0.86rem;
}

.pager {
  display: flex;
  justify-content: flex-end;
  margin: 1.75rem 0 0.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
}
.pager-next {
  font-family: var(--ui);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--accent-ink);
  text-decoration: none;
  letter-spacing: 0.02em;
}
.pager-next:hover { color: var(--accent); }
.pager-next::after { content: " →"; }

/* Detail page */
.video-page .video-header { margin-top: 1.5rem; }
.video-page h1 {
  font-family: var(--display);
  letter-spacing: -0.03em;
  line-height: 1.15;
}
.video-page .thumb img { width: 100%; height: auto; display: block; border-radius: 0.35rem; }
.embed {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  margin: 1.5rem 0 2rem;
  background: var(--md-sys-color-inverse-surface);
  border-radius: 0.35rem;
  overflow: hidden;
}
.embed iframe {
  position: absolute; inset: 0; width: 100%; height: 100%; border: 0;
}
.embed.is-fallback {
  height: auto;
  padding-bottom: 0;
  background: transparent;
}
.embed-fallback[data-embed-fallback] {
  position: absolute;
  inset: 0;
  display: block;
  text-decoration: none;
  color: inherit;
}
.embed.is-fallback .embed-fallback[data-embed-fallback] {
  position: relative;
  inset: auto;
}
.embed-fallback img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: 0.35rem;
}
.embed.is-fallback .embed-fallback img {
  height: auto;
}
.embed-fallback-label {
  position: absolute;
  left: 50%;
  bottom: 1rem;
  transform: translateX(-50%);
  font-family: var(--ui);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: #fff;
  background: rgba(15, 23, 42, 0.82);
  padding: 0.45rem 0.85rem;
  border-radius: 0.3rem;
}
.eyebrow {
  font-family: var(--ui);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.75rem;
  font-weight: 700;
}
.eyebrow a { color: var(--muted); text-decoration: none; }
.meta { font-family: var(--ui); font-size: 0.8rem; color: var(--muted); margin: 0; }
.video-page section { margin: 2rem 0; }
.video-page h2 {
  font-family: var(--ui);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-ink);
}
.attribution {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin: 2.5rem 0;
  padding: 1rem 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--ui);
  font-size: 0.85rem;
}
.attribution p {
  margin: 0;
}
.attribution-description {
  line-height: 1.45;
}
.related-digests {
  margin: 2rem 0 3rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
}
.related-digests h2 {
  font-family: var(--ui);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-ink);
  margin: 0 0 0.9rem;
}
.related-digest-list {
  display: grid;
  gap: 0.9rem;
}
.digest-related-card {
  display: grid;
  grid-template-columns: 8rem minmax(0, 1fr);
  gap: 0.85rem;
  align-items: start;
}
.digest-related-card-no-thumb {
  grid-template-columns: minmax(0, 1fr);
}
.digest-related-thumb {
  display: block;
  line-height: 0;
}
.digest-related-thumb img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
  border-radius: 0.35rem;
  background: var(--line);
}
.digest-related-body h3 {
  font-family: var(--display);
  font-size: 1rem;
  line-height: 1.25;
  margin: 0 0 0.35rem;
}
.digest-related-body h3 a {
  color: var(--ink);
  text-decoration: none;
}
.digest-related-body h3 a:hover { color: var(--accent); }
.digest-related-body p:last-child {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 2rem 0 3rem;
  color: var(--muted);
  font-size: 0.85rem;
  font-family: var(--ui);
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  margin: 0.75rem 0;
}
.footer-links a {
  color: var(--muted);
  text-decoration: none;
}
.footer-links a:hover {
  color: var(--accent);
  text-decoration: underline;
}

@keyframes rise {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: none; }
}

@media (max-width: 960px) {
  /* Articles first; rails become compact strips below. */
  .home-layout {
    grid-template-columns: 1fr;
    grid-template-areas:
      "center"
      "right"
      "left";
    gap: 1.1rem;
    padding-top: 0.85rem;
    min-width: 0;
  }
  .home-rail {
    position: static;
    min-width: 0;
    padding: 0.75rem 0 0;
    border-top: 1px solid var(--line);
  }
  .home-rail-left {
    max-height: none;
    overflow-y: visible;
  }
  .channel-list {
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    gap: 0.45rem;
    max-width: 100%;
    overflow-x: auto;
    padding-bottom: 0.25rem;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
  }
  .channel-list li { flex: 0 0 auto; }
  .channel-row {
    border: 1px solid var(--line);
    border-radius: 0.35rem;
    padding: 0.4rem 0.7rem;
    background: var(--surface);
    white-space: nowrap;
  }
  .channel-row-name { white-space: nowrap; }

  .stat-list {
    flex-direction: row;
    gap: 1.75rem;
  }
  .stat-list dd { font-size: 1.35rem; }
  .rail-subtitle { margin-top: 0.9rem; }
  .chips-rail {
    display: flex;
    flex-wrap: nowrap;
    gap: 0.4rem;
    max-width: 100%;
    overflow-x: auto;
    padding-bottom: 0.25rem;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
  }
  .chips-rail li { flex: 0 0 auto; margin: 0; }

  .graph-head,
  .graph-layout {
    grid-template-columns: 1fr;
  }
  .graph-snapshot {
    text-align: left;
  }
  .graph-detail {
    position: static;
  }
}

@media (max-width: 720px) {
  .digest-layout {
    grid-template-columns: 1fr;
    gap: 0.9rem;
  }
  .digest-thumb { position: static; }
  .digest-related-card {
    grid-template-columns: 6rem minmax(0, 1fr);
  }
  .digest-related-card-no-thumb {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 540px) {
  html { font-size: 16px; }
  .wrap,
  .wrap-home {
    width: min(100% - 1rem, var(--max));
  }
  .site-header .wrap {
    flex-wrap: wrap;
    gap: 0.45rem 0.85rem;
  }
  nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem 0.85rem;
  }
  nav a {
    margin-left: 0;
  }
  .hero {
    padding-top: 1.25rem;
  }
  .digest {
    padding: 1.35rem 0 1.55rem;
  }
  .digest-title {
    font-size: clamp(1.18rem, 8vw, 1.38rem);
  }
  .digest-summary {
    font-size: 1rem;
  }
  .digest-actions {
    gap: 0.65rem 0.9rem;
  }
  .graph-toolbar {
    align-items: stretch;
  }
  .graph-search {
    width: 100%;
  }
  .graph-canvas {
    min-height: 25rem;
    padding: 0.65rem;
  }
  .kg-clusters {
    grid-template-columns: 1fr;
  }
  .graph-metrics {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
}

/* Shared public surface layer: semantic roles first, existing digest structure
   preserved. This remains CSS-only so routes and interactions stay unchanged. */
html,
body {
  overflow-x: clip;
}

:where(a, button, input):focus-visible {
  outline: 0.16rem solid var(--md-sys-color-primary);
  outline-offset: 0.18rem;
}

.site-header {
  background: color-mix(in srgb, var(--md-sys-color-surface) 94%, transparent);
  border-bottom-color: var(--md-sys-color-outline-variant);
  box-shadow: var(--md-sys-elevation-level2);
}

.brand {
  color: var(--md-sys-color-primary);
}

nav a,
.breadcrumbs a,
.footer-links a,
.action-primary,
.action-secondary,
.pager-next,
.chip,
.topics a,
.graph-tab,
.graph-filter {
  border-radius: var(--md-ref-shape-corner-small);
  white-space: nowrap;
}

.home-layout {
  padding-top: 1.75rem;
}

.digest {
  margin: 0 0 1rem;
  padding: 1.35rem;
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--md-ref-shape-corner-large);
  background: var(--md-sys-color-surface);
  box-shadow: var(--md-sys-elevation-level1);
}

.digest-thumb img,
.digest-related-thumb img,
.video-page .thumb img,
.embed {
  border-radius: var(--md-ref-shape-corner-medium);
}

.digest-title a:hover,
.search-result h2 a:hover {
  color: var(--md-sys-color-primary);
  text-decoration-color: var(--md-sys-color-primary);
}

.chip,
.topics a,
.graph-tab,
.graph-filter,
.channel-row {
  border-radius: 999px;
  border-color: var(--md-sys-color-outline-variant);
  background: var(--md-sys-color-surface-container-low);
}

.action-primary,
.action-secondary,
.search-form button,
.pager-next {
  white-space: nowrap;
}

.chip-channel {
  border-color: var(--md-sys-color-primary-container);
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
}

a.chip:hover,
.topics a:hover,
.graph-tab:hover,
.graph-filter:hover,
.channel-row:hover {
  border-color: var(--md-sys-color-primary);
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
}

.action-primary,
.action-secondary,
.search-form button {
  min-height: 2.35rem;
  border-radius: 999px;
  transition: background-color 0.18s ease, border-color 0.18s ease, color 0.18s ease, transform 0.18s ease;
}

.action-primary {
  background: var(--md-sys-color-primary);
}

.action-primary:hover,
.search-form button:hover {
  background: var(--md-sys-color-on-primary-container);
}

.action-secondary {
  border-color: var(--md-sys-color-outline);
  background: var(--md-sys-color-surface);
  color: var(--md-sys-color-primary);
}

.action-secondary:hover {
  border-color: var(--md-sys-color-primary);
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
}

.action-primary:active,
.action-secondary:active,
.search-form button:active {
  transform: translateY(0.08rem);
}

.search-form input {
  border-radius: var(--md-ref-shape-corner-medium);
  border-color: var(--md-sys-color-outline);
}

.search-form input:focus {
  outline: 0.16rem solid var(--md-sys-color-primary);
  outline-offset: 0.18rem;
  border-color: var(--md-sys-color-primary);
}

.graph-tab[aria-selected="true"] {
  border-color: var(--md-sys-color-primary);
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
}

.video-page .video-header,
.policy-page,
.search-hero,
.graph-page {
  padding-top: 2rem;
}

.hero,
.search-results,
.graph-shell,
.graph-detail,
.video-page article > section:not(.article-downloads):not(.attribution) {
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--md-ref-shape-corner-large);
  background: var(--md-sys-color-surface);
  box-shadow: 0 0.2rem 0.8rem color-mix(in srgb, var(--md-sys-color-shadow) 5%, transparent);
}

.hero,
.search-results {
  padding-inline: 1.35rem;
}

.search-results {
  margin-bottom: 3rem;
}

.graph-shell,
.graph-detail {
  padding: 1rem;
}

.video-page article > section:not(.article-downloads):not(.attribution) {
  padding: 1.25rem;
}

.video-page article > section:not(.article-downloads):not(.attribution) h2 {
  margin-top: 0;
}

.video-page section,
.policy-article section,
.related-digests {
  border-color: var(--md-sys-color-outline-variant);
}

.site-footer {
  border-top-color: var(--md-sys-color-outline-variant);
}

@media (max-width: 720px) {
  .digest {
    padding: 1rem;
  }
}
/* Compact feed presentation. The same semantic card becomes a grid or list
   item so view changes never alter the underlying article state. */
.feed-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin: 0 0 1rem;
}
.feed-toolbar-label {
  margin: 0;
  color: var(--md-sys-color-on-surface-variant);
  font-family: var(--ui);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.feed-view-switcher {
  display: inline-flex;
  gap: 0.15rem;
  padding: 0.2rem;
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: 999px;
  background: var(--md-sys-color-surface-container-low);
}
.feed-view-option {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  min-height: 2.35rem;
  padding: 0.35rem 0.7rem;
  border: 0;
  border-radius: 999px;
  color: var(--md-sys-color-on-surface-variant);
  background: transparent;
  cursor: pointer;
  font: 600 0.78rem/1 var(--ui);
}
.feed-view-option:hover {
  background: var(--md-sys-color-surface-container-high);
  color: var(--md-sys-color-on-surface);
}
.feed-view-option[aria-pressed="true"] {
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
}
.feed-view-icon {
  font-size: 1.05rem;
  line-height: 1;
}
.compact-feed {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 280px), 1fr));
  align-items: start;
  gap: 1rem;
}
.compact-feed[data-feed-view="list"] {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}
.feed-card {
  display: flex;
  min-width: 0;
  height: auto;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--md-ref-shape-corner-medium);
  background: var(--md-sys-color-surface-container-low);
  color: var(--md-sys-color-on-surface);
  transition: border-color 0.18s ease, background-color 0.18s ease, box-shadow 0.18s ease;
}
.feed-card:hover {
  border-color: var(--md-sys-color-outline);
  background: var(--md-sys-color-surface);
  box-shadow: 0 0.25rem 0.8rem color-mix(in srgb, var(--md-sys-color-shadow) 7%, transparent);
}
.feed-card__thumbnail {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--md-sys-color-surface-container-high);
  line-height: 0;
}
.feed-card__thumbnail img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.feed-card__thumbnail--fallback {
  background: var(--md-sys-color-surface-container-high);
}
.feed-card__body {
  display: flex;
  min-width: 0;
  flex: 1;
  flex-direction: column;
  gap: 0.55rem;
  padding: 0.85rem;
}
.feed-card__source,
.feed-card__metadata,
.feed-card__summary,
.feed-card__title {
  min-width: 0;
  margin: 0;
}
.feed-card__source {
  overflow: hidden;
  color: var(--md-sys-color-primary);
  font: 700 0.75rem/1.25 var(--ui);
  text-overflow: ellipsis;
  white-space: nowrap;
}
.feed-card__source a {
  color: inherit;
  text-decoration: none;
}
.feed-card__title {
  font-family: var(--display);
  font-size: 1.12rem;
  letter-spacing: -0.02em;
  line-height: 1.25;
}
.feed-card__title a {
  display: -webkit-box;
  overflow: hidden;
  color: inherit;
  text-decoration: none;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}
.feed-card__summary {
  display: -webkit-box;
  overflow: hidden;
  color: var(--md-sys-color-on-surface-variant);
  font-size: 0.88rem;
  line-height: 1.45;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}
.feed-card__footer {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.6rem;
  margin-top: auto;
}
.feed-card__metadata {
  flex: 1 1 auto;
  color: var(--md-sys-color-on-surface-variant);
  font: 600 0.73rem/1.35 var(--ui);
}
.feed-card__tags {
  display: flex;
  flex: 0 1 auto;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.25rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.feed-card__tags .chip {
  max-width: 8rem;
  overflow: hidden;
  text-overflow: ellipsis;
}
.feed-card__article-link {
  align-self: flex-start;
  color: var(--md-sys-color-primary);
  font: 700 0.78rem/1.25 var(--ui);
  text-decoration: none;
}
.feed-card__article-link:hover,
.feed-card__title a:hover,
.feed-card__source a:hover {
  text-decoration: underline;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.16em;
}
.feed-card__title a:focus-visible,
.feed-card__article-link:focus-visible,
.feed-card__source a:focus-visible,
.feed-card__thumbnail:focus-visible,
.feed-view-option:focus-visible {
  outline: 0.16rem solid var(--md-sys-color-primary);
  outline-offset: 0.15rem;
}

.compact-feed[data-feed-view="list"] .feed-card {
  display: grid;
  grid-template-columns: minmax(9rem, 13rem) minmax(0, 1fr);
}
.compact-feed[data-feed-view="list"] .feed-card__thumbnail {
  align-self: stretch;
  height: 100%;
}
.compact-feed[data-feed-view="list"] .feed-card__body {
  padding: 0.75rem 0.9rem;
}
.compact-feed[data-feed-view="list"] .feed-card__summary {
  -webkit-line-clamp: 2;
}

@media (max-width: 720px) {
  .compact-feed[data-feed-view="list"] .feed-card {
    grid-template-columns: minmax(0, 1fr);
  }
  .compact-feed[data-feed-view="list"] .feed-card__thumbnail {
    height: auto;
  }
}

@media (max-width: 480px) {
  .feed-toolbar {
    align-items: flex-start;
    flex-direction: column;
  }
  .feed-view-switcher {
    width: 100%;
  }
  .feed-view-option {
    flex: 1;
  }
  .feed-card__footer {
    align-items: flex-start;
    flex-direction: column;
  }
  .feed-card__tags {
    justify-content: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .feed-card,
  .feed-view-option {
    transition: none;
  }
}

/* Technical editorial finish: shared roles stay here while the existing
   server-rendered structure and interaction selectors remain unchanged. */
:root {
  --max: var(--site-reading-width);
  --line: var(--site-color-border);
  --surface: var(--site-color-surface);
  --accent: var(--site-color-accent);
  --accent-ink: var(--site-color-accent-strong);
}

body {
  color: var(--site-color-text);
  background: var(--site-color-page);
}

a { color: var(--site-color-accent); }
a:hover { color: var(--site-color-accent-strong); }

:where(a, button, input):focus-visible {
  outline: 3px solid var(--site-color-focus);
  outline-offset: 3px;
}

.site-header {
  background: var(--site-color-surface);
  box-shadow: 0 1px 0 var(--site-color-border);
  backdrop-filter: none;
}
.site-header .wrap { min-height: 4rem; }
.brand { color: var(--site-color-text); }
nav a { min-height: var(--site-control-min); display: inline-flex; align-items: center; }

.hero,
.search-hero,
.graph-head,
.video-page .video-header,
.policy-header {
  border-color: var(--site-color-border);
}
.hero h1,
.graph-head h1,
.video-page h1,
.policy-header h1 {
  color: var(--site-color-text);
}
.brand-mark,
.eyebrow,
.rail-title,
.digest-takeaways h3,
.video-page h2,
.related-digests h2 {
  color: var(--site-color-accent-strong);
}
.lede,
.policy-intro { color: var(--site-color-text-muted); }

.topic-journey {
  margin: var(--site-space-5) 0;
  padding: var(--site-space-5);
  border: 1px solid var(--site-color-border);
  border-radius: var(--site-radius-lg);
  background: var(--site-color-surface);
}
.topic-journey h2 { margin: 0; color: var(--site-color-text); }
.topic-journey__intro {
  max-width: 68ch;
  margin: 0.5rem 0 0;
  color: var(--site-color-text-muted);
}
.topic-journey__groups {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--site-space-4);
  margin-top: var(--site-space-5);
}
.topic-journey__group {
  min-width: 0;
  padding: var(--site-space-4);
  border: 1px solid var(--site-color-border);
  border-radius: var(--site-radius-md);
  background: var(--site-color-surface-subtle);
}
.topic-journey__group h3 {
  margin: 0 0 var(--site-space-3);
  color: var(--site-color-accent-strong);
  font: 700 0.82rem/1.25 var(--ui);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.topic-journey__item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  color: var(--site-color-text);
  text-decoration: none;
}
.topic-journey__item:hover .topic-journey__title { color: var(--site-color-accent); text-decoration: underline; }
.topic-journey__title { font: 700 1rem/1.3 var(--display); }
.topic-journey__meta { color: var(--site-color-text-faint); font: 600 0.72rem/1.3 var(--ui); }
.topic-journey__summary {
  display: -webkit-box;
  overflow: hidden;
  color: var(--site-color-text-muted);
  font-size: 0.85rem;
  line-height: 1.4;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

.home-layout { max-width: var(--site-content-width); }
.home-rail { border-color: var(--site-color-border); }
.home-rail-left,
.home-rail-right { min-width: 0; }
.channel-row,
.chip,
.topics a,
.graph-tab,
.graph-filter {
  border-radius: var(--site-radius-sm);
  background: var(--site-color-surface);
  border-color: var(--site-color-border);
}
.channel-row:hover,
a.chip:hover,
.topics a:hover,
.graph-tab:hover,
.graph-filter:hover {
  background: var(--site-color-accent-soft);
  border-color: var(--site-color-accent);
  color: var(--site-color-accent-strong);
}

.digest {
  border-radius: var(--site-radius-lg);
  border-color: var(--site-color-border);
  background: var(--site-color-surface-raised);
  box-shadow: 0 5px 18px color-mix(in srgb, var(--site-color-text) 5%, transparent);
}
.digest-title a:hover,
.search-result h2 a:hover { color: var(--site-color-accent); }
.digest-summary { color: var(--site-color-text); }

.action-primary,
.action-secondary,
.search-form button {
  min-height: var(--site-control-min);
  border-radius: var(--site-radius-sm);
}
.action-primary,
.search-form button { background: var(--site-color-accent); }
.action-primary:hover,
.search-form button:hover { background: var(--site-color-accent-strong); }
.action-secondary {
  border-color: var(--site-color-border-strong);
  background: var(--site-color-surface);
  color: var(--site-color-accent-strong);
}
.action-secondary:hover {
  background: var(--site-color-accent-soft);
  border-color: var(--site-color-accent);
  color: var(--site-color-accent-strong);
}

.compact-feed { gap: var(--site-space-4); }
.feed-card {
  border-radius: var(--site-radius-md);
  border-color: var(--site-color-border);
  background: var(--site-color-surface);
  box-shadow: none;
}
.feed-card:hover {
  border-color: var(--site-color-border-strong);
  background: var(--site-color-surface);
  box-shadow: 0 5px 18px color-mix(in srgb, var(--site-color-text) 7%, transparent);
}
.feed-card__thumbnail--fallback { background: var(--site-color-surface-subtle); }
.feed-card__source,
.feed-card__article-link { color: var(--site-color-accent); }
.feed-card__title a,
.feed-card__summary { overflow: visible; }
.feed-card__title a {
  display: block;
  -webkit-line-clamp: unset;
}
.feed-card__summary {
  display: block;
  -webkit-line-clamp: unset;
  color: var(--site-color-text-muted);
}
.feed-card__footer { margin-top: 0.2rem; }
.feed-card__footer {
  flex-direction: column;
}
.feed-card__tags {
  justify-content: flex-start;
}
.feed-card__tags .chip-topic {
  color: var(--site-color-accent-strong);
  background: var(--site-color-accent-soft);
  border-color: var(--site-color-border-strong);
}
.search-results > .search-result {
  margin-top: var(--site-space-4);
  padding: 0;
  border: 1px solid var(--site-color-border);
}
.search-results > .search-result:first-of-type {
  border-top: 1px solid var(--site-color-border);
}
.search-result .search-fields {
  margin: 0;
  color: var(--site-color-text-muted);
}
.feed-view-switcher { border-radius: var(--site-radius-sm); background: var(--site-color-surface); }
.feed-view-option { min-height: var(--site-control-min); border-radius: var(--site-radius-sm); }
.feed-view-option[aria-pressed="true"] { background: var(--site-color-accent-soft); color: var(--site-color-accent-strong); }

.search-form input,
.graph-search {
  min-height: var(--site-control-min);
  border-radius: var(--site-radius-sm);
  border-color: var(--site-color-border-strong);
  background: var(--site-color-surface);
}
.search-form input:focus,
.graph-search:focus { outline: 3px solid var(--site-color-focus); border-color: var(--site-color-accent); }
.search-results,
.graph-shell,
.graph-detail,
.video-page article > section:not(.article-downloads):not(.attribution) {
  border-color: var(--site-color-border);
  background: var(--site-color-surface);
  box-shadow: none;
}
.graph-tab { min-height: var(--site-control-min); }
.graph-tab[aria-selected="true"] { background: var(--site-color-accent-soft); color: var(--site-color-accent-strong); }
.graph-canvas { background: var(--site-color-surface-subtle); }

.video-page article,
.policy-article { max-width: var(--site-reading-width); }
.video-page article > section:not(.article-downloads):not(.attribution) { border-radius: var(--site-radius-lg); }
.video-page .video-header { max-width: var(--site-reading-width); }
.video-page section { margin-block: var(--site-space-5); }
.related-digests { border-color: var(--site-color-border); }
.site-footer { max-width: var(--site-content-width); border-color: var(--site-color-border); }

@media (min-width: 1440px) {
  .compact-feed { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (max-width: 1023px) and (min-width: 768px) {
  .compact-feed { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .graph-layout { grid-template-columns: minmax(0, 1fr) minmax(15rem, 18rem); }
  .topic-journey__groups { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 599px) {
  .wrap,
  .wrap-home { width: min(100% - 2rem, var(--site-content-width)); }
  .site-header .wrap { align-items: flex-start; }
  nav a { min-height: 2.5rem; }
  .home-layout { gap: var(--site-space-4); }
  .topic-journey { padding: var(--site-space-4); }
  .topic-journey__groups { grid-template-columns: 1fr; }
  .feed-toolbar { align-items: stretch; }
  .feed-view-switcher { width: 100%; }
  .feed-view-option { flex: 1; }
  .search-form { grid-template-columns: 1fr; }
  .search-form button { width: 100%; }
  .graph-head { gap: var(--site-space-3); }
  .graph-snapshot { min-width: 0; }
  .graph-toolbar { align-items: stretch; }
  .graph-search { width: 100%; }
  .graph-canvas { min-height: 22rem; }
  .graph-metrics { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .digest,
  .video-page article > section:not(.article-downloads):not(.attribution),
  .search-results,
  .graph-shell,
  .graph-detail { padding-inline: var(--site-space-3); }
}

@media (max-width: 380px) {
  .graph-metrics { grid-template-columns: 1fr; }
  .digest-actions { align-items: stretch; flex-direction: column; }
  .action-primary,
  .action-secondary { justify-content: center; width: 100%; }
}