:root {
  color-scheme: light;
  --paper: #f5f3ee;
  --panel: #fffefa;
  --ink: #252a25;
  --muted: #5d655c;
  --line: #d8d8ce;
  --accent: #315d4b;
  --accent-dark: #1e4132;
  --accent-soft: #e7eee8;
  --warm: #a14b29;
  --page-width: 1280px;
  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    'Segoe UI',
    sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background: var(--paper);
  color: var(--ink);
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  scroll-behavior: smooth;
  scroll-padding-top: 1.5rem;
}

body {
  min-width: 320px;
  margin: 0;
  overflow-wrap: anywhere;
}

button,
input {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

a {
  color: var(--accent-dark);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--warm);
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
summary:focus-visible {
  outline: 3px solid #a34322;
  outline-offset: 3px;
}

[hidden] {
  display: none !important;
}

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

.skip-link {
  position: absolute;
  z-index: 10;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.7rem 1rem;
  transform: translateY(-160%);
  border-radius: 0.35rem;
  background: var(--ink);
  color: white;
}

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

.site-header,
main,
.site-footer {
  width: min(calc(100% - 3rem), var(--page-width));
  margin-inline: auto;
}

.site-header {
  display: flex;
  min-height: 4.5rem;
  align-items: center;
  justify-content: space-between;
  border-bottom: 3px double var(--ink);
}

.wordmark {
  color: var(--ink);
  font-family: Georgia, 'Times New Roman', serif;
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 760;
  letter-spacing: -0.04em;
  text-decoration: none;
}

.wordmark span {
  color: var(--warm);
}

.header-note {
  color: var(--muted);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 0.6rem 3rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--ink);
}

.hero > .eyebrow {
  grid-column: 1 / -1;
  margin-bottom: 0;
}

.hero h1,
.hero-copy {
  grid-column: 1;
}

.hero .search-label {
  grid-column: 2;
  grid-row: 2;
  align-self: end;
  margin-bottom: 0;
}

.hero .search-form {
  grid-column: 2;
  grid-row: 3;
  align-self: start;
}

.eyebrow {
  margin: 0 0 0.8rem;
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 750;
  letter-spacing: 0.13em;
  line-height: 1.4;
  text-transform: uppercase;
}

h1,
h2,
h3,
h4,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  font-family: Georgia, 'Times New Roman', serif;
  font-weight: 500;
  letter-spacing: -0.035em;
}

h1 {
  max-width: 22ch;
  margin-bottom: 0;
  font-size: clamp(2rem, 4vw, 3.1rem);
  line-height: 1.05;
}

.hero-copy {
  max-width: 59ch;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.5;
}

.search-form {
  display: flex;
  max-width: 670px;
  min-height: 3rem;
  gap: 0.65rem;
  padding: 0.35rem;
  border: 1px solid #bfc8be;
  border-radius: 0;
  background: var(--panel);
}

.search-label {
  display: block;
  margin-bottom: 0.65rem;
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 700;
}

.catalog-loading {
  padding-bottom: 3rem;
  color: var(--muted);
}

.search-form button:disabled,
.search-form input:disabled {
  cursor: wait;
}

.search-form input {
  width: 100%;
  min-width: 0;
  padding: 0.75rem 0.95rem;
  border: 0;
  border-radius: 0.3rem;
  background: transparent;
  color: var(--ink);
  font-size: 1rem;
}

.search-form input:focus-visible {
  outline-offset: -2px;
}

.search-form input::placeholder {
  color: #737b72;
  opacity: 1;
}

.search-form button,
.button-primary {
  flex: 0 0 auto;
  padding: 0.74rem 1.2rem;
  border: 0;
  border-radius: 0.3rem;
  background: var(--accent);
  color: white;
  cursor: pointer;
  font-weight: 700;
}

.search-form button:hover,
.button-primary:hover {
  background: var(--accent-dark);
}

.topic-choices {
  padding: 1.25rem 0 2rem;
}

.section-heading {
  margin-bottom: 1rem;
}

.section-heading h2,
.message-panel h2 {
  margin-bottom: 0;
  font-size: clamp(1.6rem, 3vw, 2rem);
  line-height: 1.12;
}

.topic-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 13rem), 1fr));
  gap: 0;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}

.topic-card {
  display: flex;
  min-width: 0;
  min-height: 0;
  flex-direction: column;
  align-items: flex-start;
  padding: 1rem;
  border: 0;
  border-inline-start: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  text-align: left;
  transition: background-color 140ms ease;
}

.topic-card:first-child {
  border-inline-start: 0;
}

.topic-card:hover {
  background: var(--accent-soft);
}

.topic-card-index {
  margin-bottom: 0.5rem;
  color: var(--warm);
  font-size: 0.7rem;
  font-weight: 800;
}

.topic-card-title {
  margin-bottom: 0.45rem;
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 1.34rem;
  letter-spacing: -0.02em;
}

.topic-card-summary {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.45;
}

.topic-card-arrow {
  margin-top: auto;
  padding-top: 0.75rem;
  color: var(--accent-dark);
  font-size: 0.8rem;
  font-weight: 720;
}

.message-panel {
  max-width: 750px;
  margin: 0 auto 5rem;
  padding: clamp(1.5rem, 5vw, 2.6rem);
  border: 1px solid var(--line);
  border-radius: 0.45rem;
  background: var(--panel);
}

.message-panel h2 {
  margin-bottom: 0.8rem;
}

.message-panel p {
  max-width: 60ch;
  color: var(--muted);
  line-height: 1.65;
}

.error-panel {
  border-color: #d7a38e;
}

.button-primary {
  margin-top: 0.5rem;
}

.text-button {
  padding: 0.3rem 0;
  border: 0;
  background: transparent;
  color: var(--accent-dark);
  cursor: pointer;
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.topic-view {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 28rem), 1fr));
  gap: 1.25rem;
  padding: 0 0 2rem;
}

.topic-view:empty {
  display: none;
}

.topic-header,
.category-nav,
.resource-sections {
  grid-column: 1 / -1;
}

main:has(.topic-title) .hero {
  padding-block: 1rem;
}

main:has(.topic-title) h1 {
  font-size: 1.65rem;
}

.topic-header {
  padding: 1rem 0 0;
}

.topic-header .text-button {
  margin-bottom: 0.75rem;
}

.topic-title {
  margin-bottom: 0.65rem;
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  line-height: 1;
}

.topic-summary {
  max-width: 85ch;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.5;
}

.foundation-panel,
.starting-path {
  min-width: 0;
  margin: 0;
  padding: 1rem 0;
  border-top: 2px solid var(--ink);
  border-bottom: 1px solid var(--line);
}

.foundation-panel h3,
.starting-path h3,
.resource-section h3 {
  margin-bottom: 0.65rem;
  font-size: 1.65rem;
  line-height: 1.15;
}

.foundation-copy {
  max-width: 72ch;
  color: #343b34;
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 1.05rem;
  line-height: 1.55;
}

.concept-panel {
  margin: 1rem 0;
}

.concept-panel h4,
.source-references h4 {
  margin-bottom: 0.7rem;
  font-size: 0.86rem;
}

.concept-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  padding: 0;
  margin: 0;
  list-style: none;
}

.concept-list li {
  padding: 0.2rem 0.45rem;
  border: 1px solid var(--line);
  color: #344b3d;
  font-size: 0.82rem;
}

.source-references ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 1.4rem;
  padding-left: 1.1rem;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.86rem;
}

.path-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
  padding: 0;
  margin: 0.75rem 0 0;
  list-style: none;
}

.path-step {
  display: flex;
  min-width: 0;
  gap: 0.8rem;
}

.path-number {
  flex: 0 0 auto;
  color: var(--warm);
  font-size: 0.83rem;
  font-weight: 800;
}

.path-resource {
  font-weight: 750;
  line-height: 1.4;
}

.path-step p {
  margin: 0.45rem 0 0;
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.5;
}

.category-nav {
  padding: 0.5rem 0;
  border-bottom: 3px double var(--ink);
}

.category-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.category-link {
  padding: 0.5rem 0.65rem;
  border-bottom: 1px solid var(--line);
  font-size: 0.84rem;
  font-weight: 650;
  text-decoration: none;
}

.resource-sections {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 21rem), 1fr));
  gap: 1.5rem;
}

.resource-section {
  min-width: 0;
  padding: 0.75rem 0 0;
  border-top: 2px solid var(--ink);
  scroll-margin-top: 1rem;
}

.resource-section .section-heading {
  margin-bottom: 0.5rem;
}

.resource-section .section-heading .eyebrow {
  margin-bottom: 0.45rem;
}

.resource-section h3 {
  margin-bottom: 0;
}

.resource-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

.resource-card {
  display: flex;
  min-width: 0;
  min-height: 0;
  flex-direction: column;
  align-items: flex-start;
  padding: 0.75rem 0.5rem;
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}

.resource-source,
.resource-verified {
  margin-bottom: 0.35rem;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.035em;
}

.resource-title {
  margin-bottom: 0.4rem;
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 1.14rem;
  font-weight: 650;
  line-height: 1.3;
}

.resource-note {
  margin-bottom: 0.5rem;
  color: #465047;
  font-size: 0.88rem;
  line-height: 1.45;
}

.resource-verified {
  margin-top: auto;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.69rem;
  font-weight: 500;
}

.coverage-note {
  grid-column: 1 / -1;
  margin-top: 0;
  padding: 0.75rem 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.6;
}

.coverage-note summary {
  color: var(--accent-dark);
  cursor: pointer;
  font-weight: 700;
}

.coverage-note ul {
  padding-left: 1.2rem;
  margin-bottom: 0;
}

.coverage-note li + li {
  margin-top: 0.45rem;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  min-height: 4.5rem;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.82rem;
}

.site-footer p {
  margin-bottom: 0;
}

.site-footer a {
  flex: 0 0 auto;
}

.external-note {
  max-width: 48ch;
  font-size: 0.75rem;
  line-height: 1.6;
}

.noscript-message {
  padding: 1rem;
  margin: 0;
  background: #fff0e8;
  color: #55220f;
  text-align: center;
}

@media (max-width: 800px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 0.65rem;
  }

  .hero .search-label,
  .hero .search-form {
    grid-column: 1;
    grid-row: auto;
  }

  .hero .search-label {
    margin-top: 0.35rem;
  }
}

@media (max-width: 560px) {
  .site-header,
  main,
  .site-footer {
    width: min(calc(100% - 2rem), var(--page-width));
  }

  .site-header {
    min-height: 4.3rem;
  }

  .header-note {
    max-width: 12ch;
    text-align: right;
  }

  .hero {
    padding-block: 1rem;
  }

  h1 {
    font-size: 2rem;
  }

  .search-form {
    gap: 0.25rem;
  }

  .search-form input {
    padding-inline: 0.65rem;
  }

  .search-form button {
    padding-inline: 0.8rem;
  }

  .topic-choices {
    padding-block: 1rem;
  }

  .topic-card {
    display: grid;
    grid-template-columns: 1.4rem minmax(0, 1fr);
    gap: 0.15rem;
    padding: 0.55rem 0;
    border-inline-start: 0;
    border-bottom: 1px solid var(--line);
  }

  .topic-card-index {
    align-self: center;
    margin-bottom: 0;
  }

  .topic-card-title {
    margin-bottom: 0;
  }

  .topic-card-summary,
  .topic-card-arrow {
    grid-column: 1 / -1;
  }

  .topic-card-arrow {
    padding-top: 0;
    margin-top: 0;
  }

  .source-references ul {
    flex-direction: column;
    gap: 0.55rem;
  }

  .site-footer {
    min-height: 6.5rem;
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    gap: 0.5rem;
    padding-block: 1rem;
  }
}

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