:root {
  color-scheme: light;
  --bg: #f4f7f6;
  --ink: #0f1c24;
  --surface: #ffffff;
  --surface-alt: #eaf1ef;
  --text: #17252d;
  --muted: #61727b;
  --border: #d7e2e1;
  --accent: #126b5b;
  --accent-strong: #0d4f44;
  --gold: #8a611b;
  --blue: #244f73;
  --shadow: 0 18px 48px rgba(15, 28, 36, 0.09);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

a {
  color: inherit;
}

a:focus-visible,
button:focus-visible,
select:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 3px;
}

main {
  overflow: hidden;
}

.skip-link {
  background: var(--ink);
  border-radius: 0 0 8px 0;
  color: #ffffff;
  font-weight: 700;
  left: 0;
  padding: 10px 14px;
  position: fixed;
  text-decoration: none;
  top: 0;
  transform: translateY(-120%);
  transition: transform 160ms ease;
  z-index: 20;
}

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

.site-header,
.site-footer {
  background: var(--surface);
  border-color: var(--border);
}

.site-header {
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.site-footer {
  border-top: 1px solid var(--border);
  color: var(--muted);
  padding: 24px;
  text-align: center;
}

.footer-links {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  justify-content: center;
  margin-bottom: 12px;
}

.footer-links a {
  color: var(--accent-strong);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}

.footer-links a:hover {
  text-decoration: underline;
}

.nav,
main {
  margin: 0 auto;
  max-width: 1120px;
  padding: 0 24px;
}

.nav {
  align-items: center;
  display: flex;
  justify-content: space-between;
  min-height: 72px;
}

.brand {
  align-items: center;
  color: var(--text);
  display: inline-flex;
  gap: 10px;
  font-weight: 700;
  text-decoration: none;
}

.brand-mark {
  align-items: center;
  background: var(--ink);
  border-radius: 8px;
  color: #ffffff;
  display: inline-flex;
  font-size: 13px;
  height: 34px;
  justify-content: center;
  letter-spacing: 0.04em;
  width: 44px;
}

.nav-links {
  display: flex;
  gap: 20px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
}

.nav-links a:hover {
  color: var(--accent);
}

.hero {
  align-items: center;
  display: grid;
  gap: 48px;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
  min-height: 620px;
  padding: 72px 0 54px;
}

.hero-copy {
  max-width: 760px;
}

.eyebrow {
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  color: var(--ink);
  font-size: 64px;
  line-height: 1.1;
  margin-bottom: 18px;
}

h2 {
  color: var(--ink);
  font-size: 34px;
  line-height: 1.2;
  margin-bottom: 14px;
}

h3 {
  color: var(--ink);
  font-size: 20px;
  line-height: 1.3;
  margin-bottom: 10px;
}

.lede {
  color: var(--muted);
  font-size: 21px;
  max-width: 760px;
}

.button {
  background: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 8px;
  color: #ffffff;
  display: inline-flex;
  font-weight: 700;
  margin-top: 12px;
  padding: 12px 18px;
  text-decoration: none;
}

.button:hover {
  background: var(--accent-strong);
}

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

.button-secondary:hover {
  background: var(--surface-alt);
}

.hero-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: var(--shadow);
  display: grid;
  gap: 14px;
  padding: 22px;
}

.hero-panel div {
  border-left: 4px solid var(--accent);
  padding: 6px 0 6px 14px;
}

.hero-panel div:nth-child(2) {
  border-left-color: var(--blue);
}

.hero-panel div:nth-child(3) {
  border-left-color: var(--gold);
}

.panel-label,
.card-tag,
.section-kicker {
  color: var(--accent);
  display: block;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-panel strong {
  color: var(--ink);
  display: block;
  font-size: 22px;
  margin-top: 3px;
}

.section {
  border-top: 1px solid var(--border);
  padding: 64px 0;
}

.section-split {
  align-items: start;
  display: grid;
  gap: 32px;
  grid-template-columns: minmax(240px, 0.85fr) minmax(0, 1.15fr);
}

.section-split p:last-child {
  color: var(--muted);
  font-size: 18px;
}

.section-heading {
  margin-bottom: 28px;
  max-width: 760px;
}

.grid {
  display: grid;
  gap: 18px;
}

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

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

.card,
.comparison-card,
.about-panel,
.cta {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.card,
.comparison-card {
  min-height: 220px;
  padding: 24px;
}

.card {
  display: flex;
  flex-direction: column;
}

.card-tag {
  margin-bottom: 18px;
}

.card:nth-child(2) .card-tag {
  color: var(--blue);
}

.card:nth-child(3) .card-tag {
  color: var(--gold);
}

.comparison-card {
  background: var(--surface-alt);
}

.selector-shell {
  align-items: stretch;
  display: grid;
  gap: 22px;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
}

.selector-form,
.selector-result {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 26px;
}

.selector-fieldset {
  border: 0;
  margin: 0;
  padding: 0;
}

.selector-fieldset legend {
  color: var(--ink);
  font-size: 20px;
  font-weight: 800;
  margin-bottom: 18px;
}

.selector-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-bottom: 20px;
}

.form-field {
  display: grid;
  gap: 8px;
}

.form-field span {
  color: var(--ink);
  font-size: 14px;
  font-weight: 800;
}

.form-field select {
  appearance: none;
  background:
    linear-gradient(45deg, transparent 50%, var(--muted) 50%),
    linear-gradient(135deg, var(--muted) 50%, transparent 50%),
    var(--surface);
  background-position:
    calc(100% - 18px) 50%,
    calc(100% - 12px) 50%,
    0 0;
  background-repeat: no-repeat;
  background-size:
    6px 6px,
    6px 6px,
    100% 100%;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font: inherit;
  min-height: 48px;
  padding: 10px 40px 10px 12px;
  width: 100%;
}

.form-field select:disabled,
.button:disabled {
  cursor: not-allowed;
  opacity: 0.65;
}

.selector-result {
  background: var(--surface-alt);
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 100%;
}

.selector-result.is-error {
  background: #fff6f1;
  border-color: #df9a6a;
}

.selector-result.is-match {
  background: #edf7f4;
  border-color: #9ac8bd;
}

.result-label {
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  margin-bottom: 10px;
  text-transform: uppercase;
}

.result-summary {
  color: var(--ink);
  font-size: 18px;
  font-weight: 800;
}

.result-status {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: 8px;
  color: var(--accent-strong);
  font-weight: 800;
  margin: 14px 0 0;
  padding: 10px 12px;
}

.selection-list {
  display: grid;
  gap: 8px;
  margin: 18px 0 0;
}

.selection-list div {
  border-top: 1px solid var(--border);
  display: flex;
  gap: 10px;
  justify-content: space-between;
  padding-top: 8px;
}

.selection-list dt {
  color: var(--muted);
  font-weight: 700;
}

.selection-list dd {
  color: var(--ink);
  margin: 0;
  text-align: right;
}

.internal-topic-list {
  margin: 14px 0 0;
  padding-left: 20px;
}

.internal-topic-list li {
  color: var(--muted);
  margin-bottom: 4px;
}

.result-action {
  align-self: flex-start;
}

.guide-main {
  max-width: 980px;
}

.guide-hero {
  padding: 72px 0 46px;
}

.guide-note {
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: 8px;
  color: var(--muted);
  margin-top: 24px;
  max-width: 780px;
  padding: 16px 18px;
}

.guide-section {
  max-width: 940px;
}

.guide-section > p {
  color: var(--muted);
  font-size: 18px;
  max-width: 820px;
}

.guide-card-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 24px;
}

.guide-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 24px;
}

.guide-card p {
  color: var(--muted);
}

.guide-warning {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 4px solid var(--gold);
  border-radius: 8px;
  padding-left: 28px;
  padding-right: 28px;
}

.guide-list {
  color: var(--muted);
  margin: 18px 0 0;
  padding-left: 22px;
}

.guide-list li {
  margin-bottom: 8px;
}

.admin-main {
  max-width: 1180px;
}

.admin-hero {
  padding-bottom: 36px;
}

.admin-section {
  max-width: 100%;
}

.admin-summary-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.admin-summary-card,
.admin-panel,
.admin-guardrail {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.admin-summary-card {
  border-left: 4px solid var(--accent);
  padding: 20px;
}

.admin-summary-card:nth-child(2) {
  border-left-color: var(--blue);
}

.admin-summary-card:nth-child(3),
.admin-summary-card:nth-child(4) {
  border-left-color: var(--gold);
}

.admin-summary-card strong {
  color: var(--ink);
  display: block;
  font-size: 34px;
  line-height: 1.1;
  margin-top: 8px;
}

.admin-panel {
  overflow: hidden;
}

.admin-filter-panel,
.admin-status-summary {
  margin-bottom: 14px;
}

.admin-filter-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 18px;
}

.admin-filter-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.admin-status-summary {
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
}

.admin-status-label {
  color: var(--ink);
  font-size: 13px;
  font-weight: 800;
  margin-bottom: 10px;
  text-transform: uppercase;
}

.admin-status-chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.admin-status-chip {
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--muted);
  display: inline-flex;
  font-size: 13px;
  font-weight: 700;
  gap: 8px;
  padding: 8px 10px;
}

.admin-status-chip strong {
  color: var(--accent-strong);
}

.admin-note,
.admin-state {
  color: var(--muted);
  margin: 0;
  padding: 18px 20px;
}

.admin-note {
  background: var(--surface-alt);
  border-bottom: 1px solid var(--border);
  font-weight: 700;
}

.admin-state-error {
  background: #fff6f1;
}

.admin-state-error h3 {
  margin-bottom: 6px;
}

.admin-table-wrap {
  overflow-x: auto;
}

.admin-table {
  border-collapse: collapse;
  min-width: 980px;
  width: 100%;
}

.admin-table caption {
  height: 1px;
  overflow: hidden;
  position: absolute;
  white-space: nowrap;
  width: 1px;
}

.admin-table th,
.admin-table td {
  border-bottom: 1px solid var(--border);
  padding: 14px 16px;
  text-align: left;
  vertical-align: top;
}

.admin-table th {
  background: var(--surface-alt);
  color: var(--ink);
  font-size: 13px;
  text-transform: uppercase;
}

.admin-table td {
  color: var(--muted);
  font-size: 14px;
}

.admin-table td:first-child {
  color: var(--ink);
  font-weight: 800;
}

.admin-guardrail {
  border-left: 4px solid var(--gold);
  padding: 28px;
}

.admin-guardrail p:last-child {
  color: var(--muted);
  font-size: 18px;
  margin-bottom: 0;
}

.about-panel,
.cta {
  padding: 34px;
}

.about-panel {
  max-width: 900px;
}

.cta {
  background: var(--ink);
  border-color: var(--ink);
  color: #ffffff;
}

.cta h2,
.cta p {
  color: #ffffff;
}

.cta .section-kicker {
  color: #9fd2c6;
}

.card p,
.comparison-card p,
.section-heading p,
.about-panel p {
  color: var(--muted);
}

@media (max-width: 760px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
    padding-bottom: 18px;
    padding-top: 18px;
  }

  .nav-links {
    flex-wrap: wrap;
    row-gap: 8px;
  }

  .hero,
  .section-split,
  .two-column,
  .selector-shell,
  .selector-grid,
  .guide-card-grid,
  .admin-summary-grid,
  .admin-filter-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    gap: 28px;
    min-height: auto;
    padding: 52px 0 42px;
  }

  h1 {
    font-size: 42px;
  }

  h2 {
    font-size: 28px;
  }

  .three-column {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 46px 0;
  }

  .about-panel,
  .cta,
  .selector-form,
  .selector-result,
  .guide-card {
    padding: 24px;
  }

  .guide-hero {
    padding: 52px 0 36px;
  }

  .guide-warning {
    padding-left: 24px;
    padding-right: 24px;
  }
}

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

  .skip-link {
    transition: none;
  }
}