:root {
  color-scheme: light;
  --deep-water: #0b3b3f;
  --river: #236b6f;
  --reed: #4f7048;
  --sand: #eadfc9;
  --foam: #fbfcf8;
  --ink: #10212b;
  --signal: #b7791f;
  --mist: #eef4ee;
  --line: #cbd8cd;
  --panel: #ffffff;
  --muted: #52645f;
  --danger-bg: #fff5df;
  --danger-line: #c98220;
  --font-head: ui-serif, Georgia, Cambria, serif;
  --font-body: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --step--1: 0.92rem;
  --step-0: 1rem;
  --step-1: 1.12rem;
  --step-2: 1.42rem;
  --step-3: 1.85rem;
  --step-4: 2.45rem;
  --step-5: 3.2rem;
  --space-1: 0.35rem;
  --space-2: 0.6rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2.25rem;
  --space-6: 3.5rem;
  --radius-sm: 4px;
  --radius-md: 8px;
  --shadow-soft: 0 18px 45px rgba(16, 33, 43, 0.12);
  --content: 1240px;
  --article: 820px;
  --article-copy: 72ch;
  --article-wide: 1160px;
  --wide-content: 1320px;
  --nav-height: 64px;
  --transition: 160ms ease;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--foam);
  color: var(--ink);
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(180deg, #fbfcf8 0%, #f3f0e7 100%);
}
a { color: var(--deep-water); text-decoration-thickness: 0.08em; text-underline-offset: 0.2em; }
a:hover { color: #062b2f; }
:focus-visible {
  outline: 3px solid var(--signal);
  outline-offset: 3px;
}
.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 20;
  padding: 0.7rem 1rem;
  background: var(--ink);
  color: white;
  border-radius: var(--radius-sm);
}
.skip-link:focus { top: 1rem; }
.preview-banner {
  padding: 0.35rem clamp(1rem, 4vw, 2rem);
  background: var(--deep-water);
  color: white;
  font-size: 0.86rem;
  line-height: 1.35;
  text-align: center;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  min-height: var(--nav-height);
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: var(--space-3);
  align-items: center;
  padding: 0.9rem clamp(1rem, 4vw, 2.5rem);
  border-bottom: 1px solid var(--line);
  background: rgba(251, 252, 248, 0.96);
  backdrop-filter: blur(10px);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--ink);
  font-weight: 800;
  font-size: 1.18rem;
  text-decoration: none;
}
.brand-mark {
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: linear-gradient(140deg, var(--deep-water) 0 48%, var(--sand) 49% 58%, var(--reed) 59%);
  box-shadow: inset 0 0 0 2px rgba(255,255,255,0.45);
}
.main-nav, .lang-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  align-items: center;
}
.main-nav { justify-content: center; }
.lang-nav { justify-content: end; }
.main-nav a, .lang-nav a, .menu-summary {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding: 0.45rem 0.7rem;
  color: var(--ink);
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-size: 1rem;
  font-weight: 650;
  transition: background-color var(--transition), color var(--transition), border-color var(--transition);
}
.main-nav a[aria-current="page"], .lang-nav a[aria-current="page"] {
  background: var(--mist);
  color: var(--deep-water);
}
.mobile-menu { display: none; }
.wrap {
  width: min(var(--content), calc(100% - 2rem));
  margin-inline: auto;
}
main { min-height: 60vh; }
.hero {
  overflow: hidden;
  background: linear-gradient(180deg, var(--mist), #f7f2e8);
  border-bottom: 1px solid var(--line);
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.94fr) minmax(360px, 1.06fr);
  gap: clamp(1.75rem, 4vw, 4.25rem);
  align-items: center;
  min-height: 64vh;
  padding: clamp(2.25rem, 5vw, 4.75rem) 0;
}
.hero-compact .hero-grid {
  min-height: 50vh;
  padding: clamp(1.6rem, 3.7vw, 3.25rem) 0;
}
.eyebrow, .badge, .source-badge, .category {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  width: fit-content;
  border-radius: 999px;
  padding: 0.25rem 0.62rem;
  background: #e8f0e8;
  color: var(--deep-water);
  font-size: 0.8rem;
  font-weight: 750;
  letter-spacing: 0;
}
.source-badge { background: #f4ead6; color: #70450d; }
h1, h2, h3 {
  font-family: var(--font-head);
  line-height: 1.12;
  letter-spacing: 0;
  color: var(--ink);
}
h1 { margin: 0.75rem 0 1rem; font-size: clamp(2.35rem, 7vw, var(--step-5)); max-width: 11ch; }
.hero h1 { max-width: 14ch; }
.page-title { max-width: 18ch; }
h2 { margin: 0 0 var(--space-3); font-size: clamp(1.75rem, 4vw, var(--step-4)); }
h3 { margin: 0 0 0.55rem; font-size: var(--step-2); }
p { margin: 0 0 1rem; }
.lead { font-size: var(--step-1); max-width: 62ch; color: #263a3f; }
.actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: var(--space-4); }
.button {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.72rem 1rem;
  border: 1px solid var(--deep-water);
  border-radius: var(--radius-sm);
  background: var(--deep-water);
  color: white;
  font-weight: 800;
  text-decoration: none;
  transition: background-color var(--transition), color var(--transition), border-color var(--transition);
}
.button:hover { background: #062b2f; color: white; }
.button.secondary:hover { background: var(--mist); color: var(--deep-water); }
.button.secondary { background: transparent; color: var(--deep-water); }
.nature-visual {
  min-height: 430px;
  border: 1px solid rgba(11,59,63,0.18);
  border-radius: var(--radius-md);
  background:
    linear-gradient(180deg, rgba(255,255,255,0.28), transparent 38%),
    linear-gradient(160deg, #dfe9dc 0 34%, #b7cfb1 35% 42%, #236b6f 43% 68%, #0b3b3f 69%);
  box-shadow: var(--shadow-soft);
  position: relative;
}
.nature-visual svg, .fish-art svg { width: 100%; height: 100%; display: block; }
.nature-visual img,
.fish-art img,
.article-hero img,
.media-figure img,
.media-figure video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.image-visual {
  overflow: hidden;
}
.image-visual figcaption,
.media-figure figcaption {
  padding: 0.65rem 0.85rem;
  background: rgba(251,252,248,0.94);
  color: var(--muted);
  font-size: var(--step--1);
}
.section { padding: clamp(2.5rem, 6vw, 5rem) 0; }
.hero + .wrap .trust-strip { margin-top: var(--space-3); }
.hero + .wrap + .section { padding-top: var(--space-4); }
.section.alt { background: #f1f5ee; border-block: 1px solid var(--line); }
.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
}
.card, .article-card, .fact-box, .toc, .warning, .newsletter, .trust-strip {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.86);
}
.card, .article-card { padding: var(--space-4); }
.article-card {
  display: grid;
  gap: var(--space-3);
  min-height: 100%;
}
.card a, .article-card a { font-weight: 800; }
.fish-art {
  display: grid;
  place-items: center;
  min-height: 150px;
  margin: calc(-1 * var(--space-4)) calc(-1 * var(--space-4)) var(--space-3);
  background: linear-gradient(145deg, #dfeae3, #f4ead6);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  overflow: hidden;
}
.photo-art {
  aspect-ratio: 4 / 3;
  min-height: 0;
}
.section-note {
  max-width: 72ch;
  color: var(--muted);
}
.trust-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  overflow: hidden;
  margin-top: var(--space-4);
}
.trust-strip span {
  padding: 1rem;
  background: rgba(255,255,255,0.72);
  font-weight: 750;
  color: var(--deep-water);
}
.editorial {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: var(--space-5);
  align-items: start;
}
.footer {
  padding: var(--space-5) 0;
  color: #d9e7e0;
  background: var(--ink);
}
.footer a { color: #f5e9d1; }
.footer-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-4);
}
.footer-links { display: flex; flex-wrap: wrap; gap: 0.8rem 1.2rem; }
.beta-note { color: #aebfba; font-size: var(--step--1); }
.page-hero {
  padding: clamp(2.5rem, 6vw, 4.5rem) 0;
  background: linear-gradient(180deg, var(--mist), var(--foam));
  border-bottom: 1px solid var(--line);
}
.content-narrow {
  width: min(var(--article), calc(100% - 2rem));
  margin-inline: auto;
}
.article-shell {
  width: min(var(--article-wide), calc(100% - 2rem));
  margin-inline: auto;
}
.article-shell > section:not(.article-wide-section),
.article-shell > .source-list {
  max-width: min(var(--article), 100%);
  margin-inline: auto;
}
.wide { width: min(var(--content), calc(100% - 2rem)); margin-inline: auto; }
.filters { display: flex; flex-wrap: wrap; gap: 0.55rem; margin: 1.25rem 0 0; }
.filters span {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.35rem 0.7rem;
  background: white;
  color: var(--muted);
  font-weight: 700;
}
.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 1rem;
  color: var(--muted);
  font-size: var(--step--1);
}
.metadata {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  color: var(--muted);
  font-size: 0.96rem;
}
.article-hero {
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto;
  margin: var(--space-4) 0 var(--space-4);
  aspect-ratio: 16 / 9;
  min-height: 360px;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--line);
  background: #dce8df;
}
.article-header {
  display: grid;
  gap: var(--space-4);
}
.article-kicker {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}
.article-intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(18rem, 0.58fr);
  gap: var(--space-5);
  align-items: start;
}
.article-summary {
  border-left: 4px solid var(--river);
  padding: var(--space-3);
  background: rgba(255,255,255,0.76);
  color: var(--muted);
}
.checklist {
  padding-left: 1.2rem;
}
.comparison-table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-4) 0;
  font-size: 0.96rem;
}
.comparison-table th,
.comparison-table td {
  border: 1px solid var(--line);
  padding: 0.65rem;
  text-align: left;
  vertical-align: top;
}
.comparison-table th {
  background: var(--mist);
  color: var(--deep-water);
}
.table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.quote {
  margin: var(--space-4) 0;
  padding: var(--space-4);
  border-left: 4px solid var(--reed);
  background: rgba(255,255,255,0.78);
  font-family: var(--font-head);
  font-size: var(--step-1);
}
.empty-state {
  padding: var(--space-4);
  border: 1px dashed var(--line);
  border-radius: var(--radius-md);
  color: var(--muted);
}
.pagination {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: var(--space-5);
}
.search-result-card {
  display: grid;
  gap: 0.35rem;
  padding: var(--space-4);
  border-bottom: 1px solid var(--line);
}
.media-figure {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--panel);
}
.video-figure {
  width: min(620px, 100%);
  margin: var(--space-4) auto;
}
.video-figure video {
  aspect-ratio: 9 / 16;
  height: auto;
  background: var(--ink);
}
.toc, .fact-box, .warning, .newsletter {
  padding: var(--space-4);
  margin: var(--space-4) 0;
}
.article-support-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(18rem, 0.52fr);
  gap: var(--space-4);
  align-items: start;
  margin: var(--space-4) 0 var(--space-5);
}
.article-support-grid .toc,
.article-support-grid .fact-box {
  margin: 0;
  height: 100%;
}
.media-section {
  max-width: min(var(--article), 100%);
  margin-inline: auto;
  padding: var(--space-4) 0;
}
.article-shell > section p,
.article-shell > section li,
.source-list p,
.source-list li {
  max-width: var(--article-copy);
}
.toc ol, .source-list ol { margin: 0; padding-left: 1.25rem; }
.warning {
  background: var(--danger-bg);
  border-color: var(--danger-line);
}
.article-shell > section h2,
.article-shell > .source-list h2 {
  margin-top: var(--space-5);
  padding-top: var(--space-3);
  border-top: 1px solid var(--line);
}
.source-list { margin-top: var(--space-5); }
.related-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.perch-page .page-title { max-width: 12ch; }
.evidence-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
  margin: var(--space-4) 0;
}
.evidence-card {
  min-height: 100%;
  padding: var(--space-4);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.84);
}
.evidence-card h3 { margin-top: var(--space-3); }
.evidence-ok { border-left: 4px solid var(--reed); }
.evidence-review { border-left: 4px solid var(--signal); }
.evidence-callout {
  padding: var(--space-4);
  margin: var(--space-4) 0;
  border: 1px solid var(--danger-line);
  border-left: 4px solid var(--danger-line);
  border-radius: var(--radius-md);
  background: var(--danger-bg);
}
.fact-list {
  display: grid;
  gap: var(--space-3);
  margin: 0;
}
.fact-list div {
  display: grid;
  grid-template-columns: 10rem minmax(0, 1fr);
  gap: var(--space-3);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--line);
}
.fact-list div:last-child { border-bottom: 0; padding-bottom: 0; }
.fact-list dt {
  color: var(--deep-water);
  font-weight: 800;
}
.fact-list dd { margin: 0; }
.gap-list {
  display: grid;
  gap: 0.7rem;
  padding-left: 1.2rem;
}
.perch-hero {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(360px, 0.94fr);
  gap: clamp(1.5rem, 4vw, 3.5rem);
  align-items: center;
  margin-bottom: var(--space-5);
}
.perch-hero-copy {
  display: grid;
  align-content: center;
}
.latin-name {
  margin-top: -0.5rem;
  color: var(--muted);
  font-size: var(--step-2);
}
.hero-proof-strip {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-2);
  margin-top: var(--space-4);
  max-width: 44rem;
}
.hero-proof-strip span {
  min-height: 4.5rem;
  padding: 0.8rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.82);
  color: var(--muted);
  font-size: var(--step--1);
}
.hero-proof-strip strong {
  display: block;
  color: var(--deep-water);
  font-size: 0.98rem;
}
.perch-hero .article-hero {
  min-height: clamp(320px, 42vw, 520px);
  margin: 0;
  box-shadow: var(--shadow-soft);
}
.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.7fr) minmax(18rem, 0.5fr);
  gap: var(--space-4);
  align-items: end;
  margin-bottom: var(--space-4);
}
.section-heading p {
  color: var(--muted);
}
.fact-card-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-3);
}
.v3-glance-grid .fact-card {
  display: grid;
  align-content: start;
  gap: 0.25rem;
}
.fact-card {
  min-height: 100%;
  padding: var(--space-4);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.88);
}
.gap-card {
  border-color: var(--danger-line);
  background: #fff9ec;
}
.fact-card h3 {
  margin-top: var(--space-3);
  font-size: var(--step-1);
}
.perch-toc {
  max-width: min(var(--article), 100%);
  margin-inline: auto;
}
.answer-finder {
  margin-block: var(--space-5);
  padding: clamp(1.25rem, 3vw, 2rem);
  border-block: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(255,255,255,0.78), rgba(255,255,255,0.52)),
    #eef4ee;
}
.intent-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-3);
}
.quick-answer-grid,
.decision-grid,
.matrix-grid,
.check-grid {
  display: grid;
  gap: var(--space-3);
  margin: var(--space-4) 0;
}
.quick-answer-grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}
.decision-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.matrix-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.check-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.quick-answer-grid article,
.decision-grid article,
.matrix-grid article,
.check-grid article {
  min-height: 100%;
  padding: var(--space-4);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.9);
}
.quick-answer-grid strong,
.decision-grid h3,
.matrix-grid h3,
.check-grid strong {
  display: block;
  color: var(--deep-water);
  font-family: var(--font-head);
  line-height: 1.2;
}
.quick-answer-grid span,
.decision-grid p,
.matrix-grid p,
.check-grid p {
  color: var(--muted);
}
.check-grid span {
  display: inline-flex;
  margin-bottom: var(--space-2);
  color: var(--signal);
  font-weight: 900;
}
.intent-grid a {
  min-height: 9.5rem;
  display: grid;
  align-content: start;
  gap: 0.4rem;
  padding: var(--space-4);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.9);
  color: var(--ink);
  text-decoration: none;
  transition: border-color var(--transition), transform var(--transition), background-color var(--transition);
}
.intent-grid a:hover {
  transform: translateY(-2px);
  border-color: var(--river);
  background: #ffffff;
}
.intent-grid span,
.chapter-kicker span:last-child,
.diet-flow span,
.season-sequence span {
  color: var(--muted);
  font-size: var(--step--1);
  font-weight: 800;
}
.intent-grid strong {
  color: var(--deep-water);
  font-family: var(--font-head);
  font-size: var(--step-1);
  line-height: 1.18;
}
.intent-grid small {
  color: var(--muted);
  font-size: var(--step--1);
}
.chapter-panel {
  margin-block: clamp(2rem, 5vw, 4.5rem);
  padding: clamp(1.25rem, 3vw, 2rem) 0 0;
  border-top: 1px solid var(--line);
  border-bottom: 0;
  background: transparent;
}
.article-shell > .chapter-panel.chapter-wide {
  max-width: min(var(--article-wide), 100%);
}
.chapter-kicker {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-2);
}
.chapter-panel h2 {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}
.chapter-lead {
  color: #263a3f;
  font-size: var(--step-1);
  font-weight: 650;
}
.feature-grid,
.diet-flow,
.season-sequence {
  display: grid;
  gap: var(--space-3);
  margin: var(--space-4) 0;
}
.feature-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}
.feature-grid article,
.diet-flow article,
.season-sequence article {
  min-height: 100%;
  padding: var(--space-3);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.88);
}
.feature-grid strong,
.diet-flow strong {
  display: block;
  color: var(--deep-water);
  line-height: 1.25;
}
.feature-grid span {
  display: block;
  margin-top: 0.35rem;
  color: var(--muted);
  font-size: var(--step--1);
}
.structure-strip {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-4);
}
.structure-strip span {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  padding: 0.45rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: #ffffff;
  color: var(--deep-water);
  font-weight: 800;
}
.diet-flow {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.diet-flow article {
  border-left: 4px solid var(--reed);
}
.diet-flow article:nth-child(2) {
  border-left-color: var(--river);
}
.diet-flow article:nth-child(3) {
  border-left-color: var(--signal);
}
.season-sequence {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.season-sequence p {
  margin: 0.35rem 0 0;
  color: var(--muted);
}
.split-list {
  display: grid;
  grid-template-columns: minmax(0, 0.7fr) minmax(0, 1fr);
  gap: var(--space-4);
  margin: var(--space-4) 0;
}
.split-list article,
.gap-panel,
.faq-list details,
.source-details {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.86);
}
.split-list article,
.gap-panel {
  padding: var(--space-4);
}
.habitat-map {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: var(--space-2);
  margin: var(--space-4) 0;
}
.habitat-map article {
  min-height: 10rem;
  padding: var(--space-3);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background:
    linear-gradient(180deg, rgba(255,255,255,0.94), rgba(255,255,255,0.78)),
    linear-gradient(135deg, #d9e7e0, #f4ead6);
}
.habitat-map span {
  display: inline-flex;
  margin-bottom: var(--space-3);
  color: var(--signal);
  font-weight: 900;
}
.habitat-map h3 {
  font-size: var(--step-1);
}
.habitat-map p,
.content-card-stack p,
.practice-panel p {
  color: var(--muted);
}
.v3-interpretation article {
  border-left: 4px solid var(--reed);
}
.v3-interpretation article + article {
  border-left-color: var(--signal);
}
.content-card-stack {
  display: grid;
  gap: var(--space-3);
  margin: var(--space-4) 0;
}
.content-card-stack article,
.practice-panel > div {
  padding: var(--space-3) 0;
  border-top: 1px solid var(--line);
  background: transparent;
}
.practice-panel {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
  margin: var(--space-4) 0;
}
.season-lock {
  display: grid;
  gap: var(--space-2);
  padding: var(--space-4);
  margin: var(--space-4) 0;
  border: 1px dashed var(--danger-line);
  border-radius: var(--radius-md);
  background:
    repeating-linear-gradient(135deg, rgba(183,121,31,0.08) 0 10px, transparent 10px 20px),
    #fffaf0;
}
.lock-label {
  color: #70450d;
  font-weight: 900;
}
.evidence-callout.compact {
  max-width: var(--article-copy);
}
.faq-list {
  display: grid;
  gap: var(--space-2);
  max-width: var(--article-copy);
}
.faq-list details,
.source-details {
  overflow: hidden;
}
.faq-list summary,
.source-details summary {
  min-height: 48px;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.85rem 1rem;
  cursor: pointer;
  color: var(--deep-water);
  font-weight: 800;
}
.faq-list summary::marker,
.source-details summary::marker {
  color: var(--signal);
}
.faq-list details p {
  padding: 0 var(--space-4) var(--space-4);
}
.source-details {
  margin-top: var(--space-4);
}
.source-details[open] {
  box-shadow: var(--shadow-soft);
}
.source-details-body {
  padding: 0 var(--space-4) var(--space-4);
}
@media (min-width: 1024px) {
  .article-header {
    grid-template-columns: minmax(0, 0.94fr) minmax(360px, 0.82fr);
    column-gap: clamp(2rem, 4vw, 4rem);
    align-items: end;
  }
  .article-header .breadcrumbs,
  .article-header .article-kicker,
  .article-header h1,
  .article-header .article-intro-grid,
  .article-header .metadata {
    grid-column: 1;
  }
  .article-header .article-hero {
    grid-column: 2;
    grid-row: 1 / 6;
    align-self: stretch;
    margin: 0;
    min-height: 100%;
  }
}
@media (min-width: 1440px) {
  .wrap { width: min(var(--wide-content), calc(100% - 4rem)); }
  .hero-grid { grid-template-columns: minmax(0, 0.9fr) minmax(460px, 1.1fr); }
}
@media (max-width: 820px) {
  .site-header { grid-template-columns: 1fr auto; align-items: start; }
  .main-nav { display: none; }
  .mobile-menu { display: block; grid-column: 1 / -1; }
  .mobile-menu summary { cursor: pointer; list-style: none; }
  .mobile-menu nav { display: grid; gap: 0.3rem; padding-top: 0.5rem; }
  .mobile-menu a { min-height: 44px; display: flex; align-items: center; padding: 0.45rem 0; font-weight: 700; }
  .hero-grid, .editorial, .footer-grid, .perch-hero, .section-heading, .split-list, .practice-panel, .hero-proof-strip, .intent-grid, .feature-grid, .diet-flow, .season-sequence, .quick-answer-grid, .decision-grid, .matrix-grid, .check-grid { grid-template-columns: 1fr; }
  .article-intro-grid, .article-support-grid { grid-template-columns: 1fr; }
  .grid, .trust-strip, .related-grid, .evidence-grid, .fact-card-grid { grid-template-columns: 1fr; }
  .nature-visual { min-height: 280px; }
  .article-hero { min-height: 240px; }
  .perch-hero .article-hero {
    min-height: 250px;
    aspect-ratio: 4 / 3;
  }
  .habitat-map { grid-template-columns: 1fr; }
  .habitat-map article { min-height: 0; }
  h1 { max-width: 12ch; }
  .fact-list div { grid-template-columns: 1fr; gap: 0.25rem; }
}
@media (min-width: 821px) and (max-width: 1100px) {
  .fact-card-grid,
  .habitat-map,
  .intent-grid,
  .feature-grid,
  .quick-answer-grid,
  .decision-grid,
  .matrix-grid,
  .check-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .diet-flow,
  .season-sequence {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 420px) {
  .site-header { padding-inline: 0.8rem; }
  .wrap, .wide, .content-narrow, .article-shell { width: min(100% - 1.25rem, var(--content)); }
  .actions .button { width: 100%; }
  .lang-nav a { padding-inline: 0.55rem; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}