:root {
  --orange: #c9490a;
  --teal: #086b73;
  --navy: #173b57;
  --ink: #14263a;
  --muted: #4b6071;
  --line: #ccd8df;
  --surface: #ffffff;
  --soft: #f3f7f7;
  --gold-soft: #fff6da;
  --shadow: 0 16px 38px rgba(20, 38, 58, 0.1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: radial-gradient(circle at 95% 2%, rgba(75, 163, 176, 0.13), transparent 25rem), var(--soft);
  font: 16px/1.58 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a {
  color: var(--teal);
  font-weight: 800;
  text-underline-offset: 3px;
}

a:focus-visible,
[tabindex="0"]:focus-visible {
  outline: 3px solid #f3a65f;
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  left: 16px;
  top: -60px;
  z-index: 10;
  padding: 10px 14px;
  color: #fff;
  background: var(--ink);
  border-radius: 8px;
}

.skip-link:focus { top: 16px; }

.resource-page {
  width: min(1160px, calc(100vw - 40px));
  margin: 0 auto;
  padding: 34px 0 64px;
}

.back-link {
  display: inline-flex;
  margin-bottom: 26px;
  text-decoration: none;
}

.eyebrow,
.card-type {
  color: var(--orange);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.075em;
  text-transform: uppercase;
}

.eyebrow { margin: 0 0 7px; }

h1,
h2,
h3 {
  color: var(--ink);
  line-height: 1.12;
  letter-spacing: -0.025em;
}

h1 {
  max-width: 940px;
  margin: 0 0 24px;
  font-size: clamp(2.2rem, 5vw, 3.7rem);
}

h2 {
  margin: 0 0 12px;
  font-size: 1.35rem;
}

h3 { margin: 24px 0 9px; }

.lede,
.document,
.paper-card,
.check-grid article,
.lens-note {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: var(--shadow);
}

.lede {
  max-width: 920px;
  margin-bottom: 22px;
  padding: 20px 22px;
  border-left: 6px solid var(--teal);
}

.lede p,
.lens-note p { margin: 0; }

.paper-grid,
.check-grid {
  display: grid;
  gap: 17px;
  margin-bottom: 24px;
}

.paper-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.check-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.paper-card,
.check-grid article { padding: 21px; }

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

.paper-card .card-type,
.check-grid .card-type {
  display: block;
  margin-bottom: 14px;
}

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

.paper-card p:last-child { margin-top: auto; }

.caution {
  padding: 13px;
  color: #5d4500 !important;
  background: var(--gold-soft);
  border: 1px solid #e2c36e;
  border-radius: 8px;
}

.document {
  max-width: 1040px;
  padding: 25px;
}

.document > h2:first-child { font-size: 1.8rem; }

.document p,
.document li { max-width: 84ch; }

.document a { overflow-wrap: anywhere; }

.document ul,
.document ol,
.check-list { padding-left: 23px; }

.document li + li,
.check-list li + li { margin-top: 8px; }

.document blockquote {
  margin: 18px 0;
  padding: 15px 18px;
  color: var(--muted);
  background: #e8f4f4;
  border-left: 5px solid var(--teal);
}

.evidence-intro,
.evidence-tabs,
.evidence-supporting {
  max-width: 1040px;
}

.evidence-intro {
  margin-bottom: 18px;
}

.evidence-tab-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 0;
}

.evidence-tab {
  min-height: 78px;
  padding: 12px 14px;
  color: var(--ink);
  text-decoration: none;
  background: #e5edef;
  border: 1px solid var(--line);
  border-bottom: 4px solid #9db1ba;
  border-radius: 9px 9px 0 0;
}

.evidence-tab span,
.evidence-tab strong {
  display: block;
}

.evidence-tab span {
  color: var(--orange);
  font-size: 0.74rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.evidence-tab strong {
  margin-top: 3px;
  line-height: 1.25;
}

.evidence-tab:hover,
.evidence-tab[aria-selected="true"] {
  color: var(--teal);
  background: #fff;
  border-bottom-color: var(--teal);
}

.evidence-tab-panel {
  margin: 0 0 24px;
  border-top-left-radius: 0;
}

.evidence-tab-panel:focus-visible {
  outline: 3px solid #f3a65f;
  outline-offset: 3px;
}

.evidence-supporting {
  margin-top: 24px;
}

.table-scroll {
  overflow-x: auto;
  margin: 17px 0;
}

table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
}

th,
td {
  padding: 12px;
  text-align: left;
  vertical-align: top;
  border: 1px solid var(--line);
}

thead th {
  color: #fff;
  background: var(--navy);
}

tbody th { background: #e4f4f3; }

code {
  padding: 2px 5px;
  background: #e9eff2;
  border-radius: 5px;
}

.check-grid article { border-top: 5px solid var(--teal); }

.check-list li::marker { color: var(--teal); }

.lens-note {
  max-width: 1040px;
  padding: 20px;
  background: linear-gradient(110deg, #fff, #eaf6f5);
  border-left: 6px solid var(--teal);
}

@media (max-width: 860px) {
  .paper-grid,
  .check-grid { grid-template-columns: 1fr; }

  .resource-page { width: min(100vw - 28px, 1160px); }

  .evidence-tab-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }

  .evidence-tab { border-radius: 9px; }

  .evidence-tab-panel { border-top-left-radius: 12px; }
}

@media (max-width: 520px) {
  .evidence-tab-list { grid-template-columns: 1fr; }
}

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

@media print {
  body { background: #fff; }

  .back-link,
  .evidence-tab-list { display: none; }

  .evidence-tab-panel[hidden] { display: block !important; }

  .document,
  .evidence-tab-panel {
    box-shadow: none;
    break-inside: avoid;
  }
}