:root {
  --ukf-ink: #10231c;
  --ukf-green: #143f31;
  --ukf-paper: #f4f0e6;
  --ukf-paper-deep: #e8e0cf;
  --ukf-oxblood: #7a2435;
  --ukf-brass: #b17b16;
  --ukf-blue: #d8e8e6;
  --ukf-white: #fffdf7;
  --ukf-rule: #809187;
  --ukf-muted: #4c5f56;
  --ukf-max: 76rem;
  --ukf-serif: Georgia, "Times New Roman", serif;
  --ukf-sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 8rem;
}

body {
  margin: 0;
  color: var(--ukf-ink);
  background: var(--ukf-paper);
  font-family: var(--ukf-sans);
  font-size: 1rem;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: var(--ukf-oxblood);
  text-decoration-thickness: 0.09em;
  text-underline-offset: 0.16em;
}

a:hover {
  color: #4d1220;
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--ukf-brass);
  outline-offset: 4px;
}

p,
ul,
ol,
dl {
  margin-top: 0;
}

h1,
h2,
h3 {
  color: var(--ukf-ink);
  font-family: var(--ukf-serif);
  font-weight: 700;
  line-height: 1.08;
  text-wrap: balance;
}

h1 {
  max-width: 15ch;
  margin: 0 0 1.35rem;
  font-size: clamp(2.2rem, 4.6vw, 4.4rem);
  letter-spacing: -0.045em;
}

h2 {
  margin: 0 0 1rem;
  font-size: clamp(2rem, 4.2vw, 3.8rem);
  letter-spacing: -0.035em;
}

h3 {
  margin: 0 0 0.7rem;
  font-size: clamp(1.35rem, 2.4vw, 2rem);
}

.ukf-skip {
  position: fixed;
  z-index: 1000;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.65rem 0.9rem;
  color: var(--ukf-white);
  background: var(--ukf-oxblood);
  transform: translateY(-180%);
}

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

.ukf-shell {
  width: min(calc(100% - 2rem), var(--ukf-max));
  margin-inline: auto;
}

.ukf-site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  border-bottom: 2px solid var(--ukf-ink);
  background: rgba(244, 240, 230, 0.98);
}

.ukf-header-row {
  display: grid;
  grid-template-columns: minmax(15rem, 1fr) auto;
  align-items: center;
  gap: 1rem 2rem;
  min-height: 5.25rem;
  padding-block: 0.65rem;
}

.ukf-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  width: fit-content;
  color: var(--ukf-ink);
  font-family: var(--ukf-serif);
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.05;
  text-decoration: none;
}

.ukf-brand img {
  width: 2.7rem;
  height: 2.7rem;
}

.ukf-brand small {
  display: block;
  margin-top: 0.28rem;
  color: var(--ukf-muted);
  font-family: var(--ukf-sans);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.ukf-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.45rem 1rem;
}

.ukf-nav a {
  color: var(--ukf-ink);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-decoration: none;
  text-transform: uppercase;
}

.ukf-nav a:hover {
  color: var(--ukf-oxblood);
  text-decoration: underline;
}

.ukf-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--ukf-ink);
  background: var(--ukf-white);
}

.ukf-hero::before {
  position: absolute;
  inset: 0 auto 0 max(58%, calc(50% + 9rem));
  width: 1px;
  background: var(--ukf-rule);
  content: "";
}

.ukf-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(17rem, 1.25fr);
  gap: clamp(2rem, 6vw, 6rem);
  padding-block: clamp(4rem, 9vw, 8rem) 3.5rem;
}

.ukf-kicker,
.ukf-section-code,
.ukf-caption {
  color: var(--ukf-oxblood);
  font-size: 0.74rem;
  font-weight: 850;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.ukf-answer {
  max-width: 51rem;
  margin-bottom: 1.4rem;
  font-size: clamp(1.08rem, 2vw, 1.32rem);
  line-height: 1.55;
}

.ukf-byline {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.8rem;
  align-items: center;
  padding-top: 1rem;
  border-top: 1px solid var(--ukf-rule);
  color: var(--ukf-muted);
  font-size: 0.82rem;
}

.ukf-byline strong {
  color: var(--ukf-ink);
}

.ukf-location-slip {
  align-self: start;
  padding: 1.2rem 0 0 1.4rem;
  border-top: 7px solid var(--ukf-brass);
}

.ukf-location-slip h2 {
  font-size: 1.35rem;
  letter-spacing: 0;
}

.ukf-location-slip dl {
  margin: 0;
  border-bottom: 1px solid var(--ukf-rule);
}

.ukf-location-slip div {
  padding: 0.85rem 0;
  border-top: 1px solid var(--ukf-rule);
}

.ukf-location-slip dt {
  color: var(--ukf-muted);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.ukf-location-slip dd {
  margin: 0.25rem 0 0;
  font-family: var(--ukf-serif);
  font-size: 1.04rem;
  font-weight: 700;
  line-height: 1.35;
}

.ukf-section {
  padding-block: clamp(3.8rem, 8vw, 7rem);
  border-bottom: 1px solid var(--ukf-rule);
}

.ukf-section-white {
  background: var(--ukf-white);
}

.ukf-section-blue {
  background: var(--ukf-blue);
}

.ukf-section-green {
  color: var(--ukf-white);
  background: var(--ukf-green);
}

.ukf-section-green h2,
.ukf-section-green h3,
.ukf-section-green a {
  color: var(--ukf-white);
}

.ukf-section-green .ukf-section-code {
  color: var(--ukf-white);
}

.ukf-section-head {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(17rem, 1fr);
  gap: 2rem 5rem;
  align-items: end;
  margin-bottom: 2.3rem;
}

.ukf-section-head > :last-child {
  max-width: 40rem;
  margin-bottom: 0.4rem;
}

.ukf-definition-grid,
.ukf-model-strip,
.ukf-method-grid,
.ukf-planner-grid,
.ukf-source-grid {
  display: grid;
  gap: 1px;
  border: 1px solid var(--ukf-ink);
  background: var(--ukf-ink);
}

.ukf-definition-grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.ukf-definition-grid article,
.ukf-model-strip article,
.ukf-method-grid article,
.ukf-planner-grid article,
.ukf-source-grid article {
  padding: 1.25rem;
  background: var(--ukf-paper);
}

.ukf-definition-grid h3,
.ukf-model-strip h3,
.ukf-method-grid h3,
.ukf-planner-grid h3,
.ukf-source-grid h3 {
  font-size: 1.12rem;
  letter-spacing: 0;
}

.ukf-definition-grid p,
.ukf-model-strip p,
.ukf-method-grid p,
.ukf-planner-grid p,
.ukf-source-grid p {
  margin-bottom: 0;
  font-size: 0.91rem;
}

.ukf-model-strip {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.ukf-model-strip article {
  min-height: 18rem;
}

.ukf-model-label {
  display: block;
  margin-bottom: 2rem;
  color: var(--ukf-oxblood);
  font-size: 0.72rem;
  font-weight: 850;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.ukf-method-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.ukf-method-grid article {
  min-height: 12rem;
}

.ukf-step-no {
  display: inline-grid;
  place-items: center;
  width: 2.1rem;
  height: 2.1rem;
  margin-bottom: 1.25rem;
  border: 1px solid var(--ukf-ink);
  color: var(--ukf-white);
  background: var(--ukf-oxblood);
  font-family: var(--ukf-serif);
  font-weight: 700;
}

.ukf-evidence-key {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin: 2rem 0 0;
  padding: 0;
  list-style: none;
}

.ukf-evidence-key li,
.ukf-state {
  display: inline-block;
  padding: 0.28rem 0.48rem;
  border: 1px solid currentColor;
  color: var(--ukf-ink);
  background: var(--ukf-white);
  font-size: 0.69rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  line-height: 1.2;
  text-transform: uppercase;
}

.ukf-provider-list {
  margin: 0;
  padding: 0;
  border-top: 3px solid var(--ukf-ink);
  list-style: none;
  counter-reset: ukf-provider;
}

.provider-card {
  display: grid;
  grid-template-columns: 4.5rem minmax(12rem, 0.8fr) minmax(0, 2.2fr);
  gap: 1.25rem;
  padding: 2rem 0;
  border-bottom: 1px solid var(--ukf-rule);
  counter-increment: ukf-provider;
}

.provider-card::before {
  color: var(--ukf-oxblood);
  content: counter(ukf-provider, decimal-leading-zero);
  font-family: var(--ukf-serif);
  font-size: 2.4rem;
  font-weight: 700;
  line-height: 1;
}

.ukf-provider-name h3 {
  margin-bottom: 0.35rem;
}

.ukf-provider-name p {
  color: var(--ukf-muted);
  font-size: 0.8rem;
}

.ukf-provider-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  margin: 0;
  border-top: 1px solid var(--ukf-rule);
  border-left: 1px solid var(--ukf-rule);
}

.ukf-provider-facts div {
  min-width: 0;
  padding: 0.9rem;
  border-right: 1px solid var(--ukf-rule);
  border-bottom: 1px solid var(--ukf-rule);
}

.ukf-provider-facts dt {
  margin-bottom: 0.3rem;
  color: var(--ukf-muted);
  font-size: 0.66rem;
  font-weight: 850;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.ukf-provider-facts dd {
  margin: 0;
  overflow-wrap: anywhere;
  font-size: 0.86rem;
  line-height: 1.5;
}

.ukf-table-wrap {
  max-width: 100%;
  overflow-x: auto;
  border: 1px solid var(--ukf-ink);
  background: var(--ukf-white);
}

.ukf-table {
  width: 100%;
  min-width: 58rem;
  border-collapse: collapse;
  font-size: 0.86rem;
}

.ukf-table caption {
  padding: 1rem;
  border-bottom: 1px solid var(--ukf-ink);
  font-family: var(--ukf-serif);
  font-size: 1.08rem;
  font-weight: 700;
  text-align: left;
}

.ukf-table th,
.ukf-table td {
  padding: 0.8rem;
  border-right: 1px solid var(--ukf-rule);
  border-bottom: 1px solid var(--ukf-rule);
  vertical-align: top;
  text-align: left;
}

.ukf-table thead th {
  color: var(--ukf-white);
  background: var(--ukf-green);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.ukf-table tbody th {
  background: var(--ukf-paper-deep);
  font-weight: 800;
}

.ukf-table tbody tr:hover td,
.ukf-table tbody tr:hover th {
  background: #fff5d8;
}

.ukf-planner-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.ukf-planner-grid article {
  min-height: 13rem;
}

.ukf-callout {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(14rem, 0.8fr);
  gap: 2rem;
  margin-top: 2rem;
  padding: 1.4rem;
  border: 2px solid var(--ukf-oxblood);
  background: var(--ukf-white);
}

.ukf-callout p:last-child,
.ukf-callout ul:last-child {
  margin-bottom: 0;
}

.ukf-faq-list {
  border-top: 3px solid var(--ukf-ink);
}

.ukf-faq-list details {
  border-bottom: 1px solid var(--ukf-rule);
}

.ukf-faq-list summary {
  padding: 1.25rem 3rem 1.25rem 0;
  cursor: pointer;
  font-family: var(--ukf-serif);
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  font-weight: 700;
}

.ukf-faq-list details[open] summary {
  color: var(--ukf-oxblood);
}

.ukf-faq-answer {
  max-width: 58rem;
  padding: 0 0 1.4rem 2rem;
  border-left: 4px solid var(--ukf-brass);
}

.ukf-faq-answer p:last-child {
  margin-bottom: 0;
}

.ukf-source-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.ukf-source-grid ul {
  margin-bottom: 0;
  padding-left: 1.2rem;
}

.ukf-source-grid li + li {
  margin-top: 0.55rem;
}

.ukf-source-grid a {
  overflow-wrap: anywhere;
}

.ukf-closing {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(15rem, 0.8fr);
  gap: 3rem;
  align-items: end;
}

.ukf-closing h2 {
  max-width: 16ch;
}

.ukf-closing-nav {
  display: grid;
  gap: 0.65rem;
  padding-left: 1.2rem;
  border-left: 5px solid var(--ukf-brass);
}

.ukf-closing-nav a {
  font-weight: 800;
}

.ukf-site-footer {
  padding-block: 2.5rem;
  color: var(--ukf-white);
  background: #0c2119;
}

.ukf-footer-grid {
  display: grid;
  grid-template-columns: minmax(12rem, 1fr) minmax(18rem, 2fr) minmax(12rem, 1fr);
  gap: 2rem;
}

.ukf-site-footer h2,
.ukf-site-footer h3,
.ukf-site-footer a {
  color: var(--ukf-white);
}

.ukf-site-footer h2 {
  margin-bottom: 0.5rem;
  font-size: 1.5rem;
  letter-spacing: 0;
}

.ukf-site-footer h3 {
  font-size: 1rem;
}

.ukf-site-footer p,
.ukf-site-footer li {
  font-size: 0.8rem;
}

.ukf-site-footer ul {
  margin: 0;
  padding-left: 1.1rem;
}

.ukf-smallprint {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid #799084;
  color: #d5e1db;
  font-size: 0.74rem;
}

.ukf-error-main {
  display: grid;
  min-height: 68vh;
  place-items: center;
  padding-block: 5rem;
}

.ukf-error-file {
  width: min(100%, 45rem);
  padding: clamp(2rem, 6vw, 5rem);
  border: 1px solid var(--ukf-ink);
  border-left: 1.1rem solid var(--ukf-oxblood);
  background: var(--ukf-white);
}

.ukf-error-code {
  margin-bottom: 0.5rem;
  color: var(--ukf-brass);
  font-family: var(--ukf-serif);
  font-size: clamp(4rem, 16vw, 9rem);
  font-weight: 700;
  line-height: 0.9;
}

@media (max-width: 70rem) {
  .ukf-header-row {
    grid-template-columns: 1fr;
  }

  .ukf-nav {
    justify-content: flex-start;
    padding-bottom: 0.35rem;
  }

  .ukf-definition-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .provider-card {
    grid-template-columns: 4rem minmax(0, 1fr);
  }

  .ukf-provider-facts {
    grid-column: 2;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 52rem) {
  html {
    scroll-padding-top: 11rem;
  }

  .ukf-hero::before {
    display: none;
  }

  .ukf-hero-grid,
  .ukf-section-head,
  .ukf-closing,
  .ukf-footer-grid,
  .ukf-callout {
    grid-template-columns: 1fr;
  }

  .ukf-location-slip {
    padding-left: 0;
  }

  .ukf-definition-grid,
  .ukf-method-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .ukf-model-strip,
  .ukf-planner-grid,
  .ukf-source-grid {
    grid-template-columns: 1fr;
  }

  .ukf-model-strip article,
  .ukf-method-grid article,
  .ukf-planner-grid article {
    min-height: 0;
  }
}

@media (max-width: 36rem) {
  .ukf-shell {
    width: min(calc(100% - 1.25rem), var(--ukf-max));
  }

  .ukf-nav {
    gap: 0.35rem 0.7rem;
  }

  .ukf-nav a {
    font-size: 0.68rem;
  }

  .ukf-definition-grid,
  .ukf-method-grid {
    grid-template-columns: 1fr;
  }

  .provider-card {
    grid-template-columns: 3rem minmax(0, 1fr);
  }

  .provider-card::before {
    font-size: 1.8rem;
  }

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

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

@media print {
  .ukf-site-header,
  .ukf-skip,
  .ukf-site-footer {
    display: none;
  }

  body {
    color: #000;
    background: #fff;
    font-size: 10pt;
  }

  .ukf-section,
  .provider-card,
  .ukf-faq-list details {
    break-inside: avoid;
  }
}