:root {
  color-scheme: light;
  --ink: #172033;
  --muted: #526071;
  --brand: #0b4f6c;
  --brand-strong: #073b50;
  --link: #005ea8;
  --focus: #7a3e00;
  --surface: #ffffff;
  --surface-soft: #f4f7fa;
  --surface-accent: #eaf4f7;
  --border: #c7d1dc;
  --border-strong: #8d9bad;
  --success-surface: #eef7f2;
  --warning-surface: #fff7e6;
  --radius-sm: 0.5rem;
  --radius: 0.75rem;
  --shadow: 0 0.25rem 1rem rgb(23 32 51 / 0.08);
  --content: 72rem;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
}

* {
  box-sizing: border-box;
}

html {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  background: var(--surface-soft);
  color: var(--ink);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-width: 20rem;
  background: var(--surface-soft);
}

a {
  color: var(--link);
  text-underline-offset: 0.16em;
  text-decoration-thickness: 0.08em;
}

a:hover {
  text-decoration-thickness: 0.14em;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
summary:focus-visible,
[tabindex]:focus-visible {
  outline: 0.2rem solid var(--focus);
  outline-offset: 0.18rem;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 0.5rem;
  left: 0.5rem;
  transform: translateY(-160%);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  background: var(--ink);
  color: #ffffff;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: relative;
  z-index: 20;
  border-bottom: 1px solid var(--border);
  background: rgb(255 255 255 / 0.98);
}

.site-header__inner,
.site-footer__inner,
.site-main {
  width: min(100% - 2rem, var(--content));
  margin-inline: auto;
}

.site-header__inner {
  display: flex;
  min-height: 4.75rem;
  align-items: center;
  gap: var(--space-4);
}

.brand {
  color: var(--ink);
  font-size: 1.18rem;
  font-weight: 820;
  letter-spacing: -0.02em;
  text-decoration: none;
  white-space: nowrap;
}

.preview-badge,
.eyebrow,
.status-chip,
.mobile-nav__status {
  display: inline-flex;
  align-items: center;
  min-height: 2rem;
  padding: 0.25rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface-accent);
  color: var(--brand-strong);
  font-size: 0.875rem;
  font-weight: 700;
}

.preview-badge {
  color: var(--muted);
  background: var(--surface-soft);
  font-size: 0.8rem;
}

.primary-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  margin-left: auto;
}

.primary-nav a,
.mobile-nav__links a,
.footer-nav a {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  padding: 0.45rem 0.7rem;
  border-radius: 0.45rem;
  color: var(--ink);
  font-weight: 650;
}

.primary-nav a[aria-current="page"],
.mobile-nav__links a[aria-current="page"] {
  background: var(--surface-accent);
  color: var(--brand-strong);
  text-decoration: none;
}

.mobile-nav {
  display: none;
  margin-left: auto;
}

.mobile-nav__summary {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.55rem 0.8rem;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--ink);
  font-weight: 750;
  cursor: pointer;
  list-style: none;
  user-select: none;
}

.mobile-nav__summary::-webkit-details-marker {
  display: none;
}

.mobile-nav__summary:hover {
  background: var(--surface-soft);
}

.mobile-nav__chevron {
  width: 0.55rem;
  height: 0.55rem;
  border-right: 0.13rem solid currentColor;
  border-bottom: 0.13rem solid currentColor;
  transform: rotate(45deg) translateY(-0.12rem);
  transform-origin: center;
}

.mobile-nav[open] .mobile-nav__chevron {
  transform: rotate(225deg) translate(-0.08rem, -0.08rem);
}

.mobile-nav__panel {
  position: absolute;
  top: calc(100% + 1px);
  right: 0;
  left: 0;
  padding: var(--space-3) max(1rem, calc((100vw - var(--content)) / 2));
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.mobile-nav__links {
  display: grid;
  gap: var(--space-1);
}

.mobile-nav__links a {
  width: 100%;
  justify-content: space-between;
  padding-inline: 0.8rem;
}

.mobile-nav__status {
  margin-top: var(--space-3);
  color: var(--muted);
  background: var(--surface-soft);
  font-size: 0.8rem;
}

.site-main {
  padding-block: 2.5rem 4rem;
}

.site-main:focus {
  outline: none;
}

.site-main:focus-visible {
  outline: 0.2rem solid var(--focus);
  outline-offset: 0.2rem;
}

h1,
h2,
h3 {
  line-height: 1.2;
  text-wrap: balance;
}

h1 {
  max-width: 22ch;
  margin: 0.75rem 0 1rem;
  font-size: clamp(2rem, 5vw, 3.4rem);
  letter-spacing: -0.035em;
}

h2 {
  margin-top: 2.5rem;
  font-size: clamp(1.35rem, 3vw, 1.9rem);
}

h3 {
  font-size: 1.12rem;
}

p,
li {
  max-width: 72ch;
}

.lead {
  max-width: 62ch;
  color: var(--muted);
  font-size: 1.15rem;
}

.hero {
  padding-block: 1rem 1.5rem;
}

.discovery-hero {
  max-width: 62rem;
  padding-block: var(--space-5) var(--space-7);
}

.discovery-hero h1 {
  max-width: 18ch;
  margin-top: var(--space-4);
}

.orientation-points {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: var(--space-6) 0 0;
  padding: var(--space-5) 0 0;
  border-top: 1px solid var(--border);
  list-style: none;
}

.orientation-points li {
  display: grid;
  gap: var(--space-1);
  padding-inline: var(--space-4);
  color: var(--muted);
  font-size: 0.925rem;
}

.orientation-points li:first-child {
  padding-left: 0;
}

.orientation-points li + li {
  border-left: 1px solid var(--border);
}

.orientation-points strong {
  color: var(--ink);
  font-size: 0.95rem;
}

.section-intro {
  max-width: 48rem;
}

.section-intro h2,
.comparison-boundary h2 {
  margin: var(--space-2) 0 var(--space-3);
}

.section-intro > p:last-child,
.comparison-boundary p {
  color: var(--muted);
}

.section-kicker {
  margin: 0;
  color: var(--brand-strong);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.075em;
  text-transform: uppercase;
}

.family-entry {
  padding-block: var(--space-6) var(--space-7);
}

.family-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 24rem), 1fr));
  gap: var(--space-5);
  margin-top: var(--space-6);
}

.family-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  justify-content: space-between;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.family-card__body {
  padding: var(--space-6);
}

.family-card h3 {
  margin: 0 0 var(--space-3);
  font-size: clamp(1.35rem, 3vw, 1.65rem);
}

.family-card__mechanism {
  min-height: 3.2em;
  margin: 0;
  color: var(--muted);
}

.family-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
  margin: var(--space-6) 0 var(--space-4);
}

.family-facts__item {
  min-width: 0;
  padding-top: var(--space-3);
  border-top: 1px solid var(--border);
}

.family-facts dt {
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 700;
}

.family-facts dd {
  margin: var(--space-1) 0 0;
  overflow-wrap: anywhere;
  font-weight: 650;
}

.family-facts dd strong {
  font-size: 1.25rem;
}

.family-card__comparison {
  margin: var(--space-4) 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.family-card__action {
  padding: 0 var(--space-6) var(--space-6);
}

.comparison-boundary {
  display: flex;
  gap: var(--space-6);
  align-items: end;
  justify-content: space-between;
  margin-top: var(--space-5);
  padding-block: var(--space-6);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.comparison-boundary > div {
  max-width: 48rem;
}

.comparison-boundary__action {
  flex: 0 0 auto;
  margin: 0;
  font-weight: 700;
}

.browse-hero,
.detail-hero {
  max-width: 62rem;
  padding-bottom: var(--space-6);
}

.browse-filters {
  margin-block: 0 var(--space-7);
}

.browse-page .results-grid {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 22rem), 1fr));
  gap: var(--space-5);
}

.opportunity-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: var(--space-5);
}

.opportunity-card__header {
  min-width: 0;
}

.opportunity-card h3 {
  margin: 0;
  overflow-wrap: anywhere;
  font-size: clamp(1.2rem, 2.5vw, 1.4rem);
}

.opportunity-card__identity,
.detail-identity {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1) var(--space-2);
  color: var(--muted);
  overflow-wrap: anywhere;
}

.opportunity-card__identity {
  margin: var(--space-2) 0 0;
  font-size: 0.95rem;
}

.economic-summary {
  margin-block: var(--space-5);
  padding-block: var(--space-4);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.economic-summary__label {
  margin: 0;
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 750;
  letter-spacing: 0.02em;
}

.economic-summary__value {
  margin: var(--space-1) 0 var(--space-2);
  font-size: clamp(1.18rem, 2.5vw, 1.4rem);
  line-height: 1.3;
}

.economic-summary__currentness {
  margin: 0;
}

.opportunity-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
}

.opportunity-card__actions .compare-choice {
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  background: var(--surface-soft);
}

.empty-state {
  grid-column: 1 / -1;
  padding: var(--space-6);
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius);
  background: var(--surface);
}

.empty-state h3 {
  margin-top: 0;
  font-size: 1.2rem;
}

.empty-state p {
  color: var(--muted);
}

.comparison-submit {
  padding-top: var(--space-3);
  border-top: 1px solid var(--border);
}

.detail-identity {
  margin: var(--space-3) 0 0;
  color: var(--ink);
  font-size: 1rem;
}

.detail-identity strong {
  font-weight: 750;
}

.detail-summary {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(16rem, 0.75fr);
  gap: var(--space-6);
  margin-block: var(--space-4) var(--space-6);
  padding: var(--space-6);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.detail-summary h2 {
  margin: var(--space-2) 0 var(--space-3);
  font-size: 1.2rem;
}

.detail-summary__value {
  margin: 0;
  overflow-wrap: anywhere;
  font-size: clamp(1.45rem, 4vw, 2rem);
  line-height: 1.2;
}

.detail-summary__mechanism {
  margin: var(--space-3) 0 0;
  color: var(--muted);
}

.detail-summary__status {
  padding-left: var(--space-5);
  border-left: 1px solid var(--border);
}

.detail-summary__status p:not(.section-kicker) {
  margin: var(--space-3) 0 0;
  color: var(--muted);
}

.detail-grid {
  align-items: start;
}

.content-section--important {
  border-left: 0.3rem solid #8a5700;
  background: var(--warning-surface);
}

.content-section--sources {
  overflow-wrap: anywhere;
}

.detail-page .trust-card {
  margin-top: var(--space-6);
}

.detail-page .trust-card h2 {
  margin-top: 0;
  font-size: clamp(1.25rem, 3vw, 1.6rem);
}

.card-grid,
.results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr));
  gap: 1rem;
  margin-block: 1.25rem 2rem;
}

.card,
.opportunity-card,
.trust-card,
.content-section {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.card,
.trust-card {
  padding: 1.25rem;
}

.card h2,
.card h3 {
  margin-top: 0.35rem;
}

.card-meta,
.meta-list {
  color: var(--muted);
}

.card-actions,
.form-actions,
.section-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  margin-top: 1rem;
}

.button,
button {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1rem;
  border: 2px solid var(--brand);
  border-radius: var(--radius-sm);
  background: var(--brand);
  color: #ffffff;
  font: inherit;
  font-weight: 750;
  line-height: 1.2;
  cursor: pointer;
  text-decoration: none;
}

.button:hover,
button:hover {
  border-color: var(--brand-strong);
  background: var(--brand-strong);
}

.button--secondary {
  background: var(--surface);
  color: var(--brand-strong);
}

.button--secondary:hover {
  border-color: var(--brand-strong);
  background: var(--surface-accent);
  color: var(--brand-strong);
}

fieldset {
  margin: 0;
  padding: 1.25rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}

legend {
  padding-inline: 0.35rem;
  font-size: 1.1rem;
  font-weight: 800;
}

.filter-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 13rem), 1fr));
  gap: 1rem;
}

.form-field {
  display: grid;
  gap: 0.35rem;
  align-content: start;
  font-weight: 650;
}

.form-help,
.small-note {
  margin-block: 0.5rem;
  color: var(--muted);
  font-size: 0.925rem;
}

input,
select {
  width: 100%;
  min-height: 2.75rem;
  padding: 0.6rem 0.7rem;
  border: 1px solid var(--border-strong);
  border-radius: 0.45rem;
  background: #ffffff;
  color: var(--ink);
  font: inherit;
}

input[type="checkbox"] {
  width: 1.35rem;
  min-height: 1.35rem;
  accent-color: var(--brand);
}

.compare-choice {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  min-height: 2.75rem;
  font-weight: 700;
}

.section-heading {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  align-items: baseline;
  justify-content: space-between;
}

.section-heading h2 {
  margin-bottom: 0;
}

.trust-strip,
.notice {
  margin-block: 1.25rem;
  padding: 1rem 1.1rem;
  border-left: 0.3rem solid var(--brand);
  border-radius: 0.45rem;
  background: var(--surface-accent);
}

.notice--warning {
  border-left-color: #8a5700;
  background: var(--warning-surface);
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 20rem), 1fr));
  gap: 1rem;
  margin-block: 1.5rem;
}

.content-section {
  padding: 1.1rem 1.25rem;
}

.content-section h2 {
  margin-top: 0;
  font-size: 1.2rem;
}

.trust-page .trust-hero {
  max-width: 54rem;
  padding-bottom: var(--space-7);
}

.trust-page .trust-section {
  max-width: 54rem;
  margin: 0;
  padding: var(--space-5) 0;
  border: 0;
  border-top: 1px solid var(--border);
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.trust-page .trust-section h2 {
  margin: 0 0 var(--space-3);
  font-size: clamp(1.2rem, 2.5vw, 1.45rem);
}

.trust-page .trust-section p:last-child,
.trust-page .trust-section ul:last-child {
  margin-bottom: 0;
}

.trust-page .trust-section li + li {
  margin-top: var(--space-1);
}

.trust-page .legal-details p {
  overflow-wrap: anywhere;
}

.trust-page .legal-details > p > strong {
  color: var(--ink);
}

.trust-page > .notice,
.trust-page > .small-note {
  max-width: 54rem;
}

.table-region {
  max-width: 100%;
  overflow-x: auto;
  margin-block: 1.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}

table {
  width: 100%;
  min-width: 46rem;
  border-collapse: collapse;
}

caption {
  padding: 1rem;
  text-align: left;
  font-weight: 800;
}

th,
td {
  padding: 0.85rem;
  border-top: 1px solid var(--border);
  vertical-align: top;
  text-align: left;
}

thead th {
  background: var(--surface-accent);
}

tbody th {
  width: 12rem;
  background: var(--surface-soft);
}

.site-footer {
  border-top: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted);
}

.site-footer__inner {
  padding-block: 2rem;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 0.5rem;
  margin-bottom: 0.75rem;
}

code {
  overflow-wrap: anywhere;
  font-size: 0.9em;
}

@media (max-width: 42rem) {
  .site-header__inner {
    min-height: 4.25rem;
    gap: var(--space-3);
  }

  .primary-nav,
  .preview-badge {
    display: none;
  }

  .mobile-nav {
    display: block;
  }

  .site-main {
    padding-block: 2rem 3rem;
  }

  .discovery-hero {
    padding-top: var(--space-4);
  }

  .orientation-points {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .orientation-points li {
    padding: var(--space-3) 0;
  }

  .orientation-points li + li {
    border-top: 1px solid var(--border);
    border-left: 0;
  }

  .family-entry {
    padding-block: var(--space-5) var(--space-6);
  }

  .comparison-boundary {
    align-items: start;
    flex-direction: column;
    gap: var(--space-3);
  }

  .browse-filters {
    margin-bottom: var(--space-6);
  }

  .opportunity-card__actions {
    align-items: stretch;
    flex-direction: column;
  }

  .opportunity-card__actions .compare-choice {
    width: 100%;
  }

  .detail-summary {
    grid-template-columns: 1fr;
    gap: var(--space-5);
    padding: var(--space-5);
  }

  .detail-summary__status {
    padding-top: var(--space-4);
    padding-left: 0;
    border-top: 1px solid var(--border);
    border-left: 0;
  }

  .trust-page .trust-hero {
    padding-bottom: var(--space-6);
  }

  .trust-page .trust-section {
    padding-block: var(--space-4);
  }
}

@media (max-width: 32rem) {
  .site-header__inner,
  .site-footer__inner,
  .site-main {
    width: min(100% - 1.25rem, var(--content));
  }

  .brand {
    font-size: 1.08rem;
  }

  .mobile-nav__panel {
    padding-inline: 0.625rem;
  }

  .family-card__body {
    padding: var(--space-5);
  }

  .family-card__action {
    padding: 0 var(--space-5) var(--space-5);
  }

  .family-facts {
    grid-template-columns: 1fr;
  }

  .family-card__mechanism {
    min-height: 0;
  }

  .opportunity-card {
    padding: var(--space-4);
  }

  .form-actions,
  .card-actions,
  .section-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .button,
  button {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

@media (forced-colors: active) {
  .site-header,
  .site-footer,
  .mobile-nav__panel,
  .card,
  .family-card,
  .opportunity-card,
  .detail-summary,
  .trust-card,
  .content-section,
  .comparison-boundary,
  .empty-state,
  .table-region,
  fieldset {
    border-color: CanvasText;
  }

  .preview-badge,
  .eyebrow,
  .status-chip,
  .mobile-nav__status,
  .primary-nav a[aria-current="page"],
  .mobile-nav__links a[aria-current="page"] {
    border: 1px solid CanvasText;
  }

  .mobile-nav__summary,
  .button,
  button {
    border-color: ButtonText;
  }
}