.resource-shell {
  width: min(100% - 3rem, 72rem);
  margin-inline: auto;
}

.resource-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.resource-hero::after {
  content: "";
  position: absolute;
  width: 26rem;
  height: 26rem;
  right: -10rem;
  top: -13rem;
  border: 1px solid rgba(234, 179, 8, 0.18);
  border-radius: 50%;
  box-shadow: 0 0 0 4rem rgba(234, 179, 8, 0.025), 0 0 0 8rem rgba(234, 179, 8, 0.018);
  pointer-events: none;
}

.resource-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  color: #94a3b8;
  font-size: 0.875rem;
}

.resource-breadcrumb a:hover,
.resource-breadcrumb a:focus-visible {
  color: #fff;
}

.resource-kicker {
  margin-top: 1.5rem;
  color: #eab308;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.resource-title {
  max-width: 58rem;
  margin-top: 1rem;
  color: #fff;
  font-family: "Playfair Display", serif;
  font-size: clamp(2.4rem, 7vw, 4.3rem);
  font-weight: 700;
  line-height: 1.08;
  text-wrap: balance;
}

.resource-deck {
  max-width: 48rem;
  margin-top: 1.5rem;
  color: #94a3b8;
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  line-height: 1.75;
}

.resource-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1.25rem;
  margin-top: 1.5rem;
  color: #94a3b8;
  font-size: 0.82rem;
}

.resource-meta strong {
  color: #e2e8f0;
}

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

.resource-card {
  display: flex;
  min-height: 16rem;
  flex-direction: column;
  padding: 1.6rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 1rem;
  background: linear-gradient(145deg, rgba(30, 41, 59, 0.5), rgba(15, 23, 42, 0.34));
  transition: border-color 180ms ease, transform 180ms ease, background 180ms ease;
}

.resource-card:hover {
  transform: translateY(-3px);
  border-color: rgba(234, 179, 8, 0.42);
  background: linear-gradient(145deg, rgba(30, 41, 59, 0.72), rgba(15, 23, 42, 0.5));
}

.resource-card:focus-within {
  border-color: #facc15;
  outline: 2px solid rgba(250, 204, 21, 0.35);
  outline-offset: 3px;
}

.resource-card-label {
  color: #eab308;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.resource-card h2,
.resource-card h3 {
  margin-top: 0.8rem;
  color: #fff;
  font-family: "Playfair Display", serif;
  font-size: 1.55rem;
  font-weight: 700;
  line-height: 1.25;
}

.resource-card p {
  margin-top: 0.8rem;
  color: #94a3b8;
  line-height: 1.7;
}

.resource-card a {
  margin-top: auto;
  padding-top: 1.25rem;
  color: #facc15;
  font-weight: 700;
}

.resource-card a::after {
  content: " \2192";
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 3rem;
}

.article-body {
  max-width: 48rem;
}

.article-body > :first-child {
  margin-top: 0;
}

.article-body p,
.article-body li,
.article-body dd {
  color: #a8b4c7;
  line-height: 1.85;
}

.article-body p,
.article-body ul,
.article-body ol,
.article-body dl,
.article-body table,
.article-body .article-callout,
.article-body .formula-panel,
.article-body .checklist-panel {
  margin-top: 1.15rem;
}

.article-body h2 {
  margin-top: 3.25rem;
  color: #fff;
  font-family: "Playfair Display", serif;
  font-size: clamp(1.8rem, 4vw, 2.35rem);
  font-weight: 700;
  line-height: 1.2;
  scroll-margin-top: 2rem;
}

.article-body h3 {
  margin-top: 2rem;
  color: #f8fafc;
  font-size: 1.25rem;
  font-weight: 700;
  scroll-margin-top: 2rem;
}

.article-body ul,
.article-body ol {
  padding-left: 1.35rem;
}

.article-body ul {
  list-style: disc;
}

.article-body ol {
  list-style: decimal;
}

.article-body li + li {
  margin-top: 0.7rem;
}

.article-body a {
  color: #facc15;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

.article-body a:hover,
.article-body a:focus-visible {
  color: #fff;
}

.article-toc {
  align-self: start;
  padding: 1.4rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 1rem;
  background: rgba(15, 23, 42, 0.72);
}

.article-toc p {
  color: #fff;
  font-weight: 700;
}

.article-toc ol {
  margin-top: 0.85rem;
  list-style: none;
}

.article-toc li + li {
  margin-top: 0.65rem;
}

.article-toc a {
  color: #94a3b8;
  font-size: 0.875rem;
  line-height: 1.5;
}

.article-toc a:hover,
.article-toc a:focus-visible {
  color: #facc15;
}

.article-callout {
  padding: 1.25rem 1.35rem;
  border-left: 3px solid #eab308;
  border-radius: 0 0.75rem 0.75rem 0;
  background: rgba(234, 179, 8, 0.075);
}

.article-callout strong {
  color: #fff;
}

.comparison-wrap {
  overflow-x: auto;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 0.9rem;
}

.comparison-table {
  width: 100%;
  min-width: 42rem;
  border-collapse: collapse;
  background: rgba(15, 23, 42, 0.45);
}

.comparison-table th,
.comparison-table td {
  padding: 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  text-align: left;
  vertical-align: top;
  line-height: 1.65;
}

.comparison-table th {
  color: #fff;
  background: rgba(30, 41, 59, 0.78);
  font-size: 0.84rem;
  letter-spacing: 0.03em;
}

.comparison-table td {
  color: #a8b4c7;
  font-size: 0.92rem;
}

.comparison-table tbody tr:last-child td {
  border-bottom: 0;
}

.source-list {
  padding-left: 1.25rem;
  list-style: decimal;
  font-size: 0.9rem;
}

.source-list li {
  padding-left: 0.25rem;
}

.formula-panel {
  padding: 1.5rem;
  border: 1px solid rgba(234, 179, 8, 0.22);
  border-radius: 1rem;
  background: linear-gradient(145deg, rgba(234, 179, 8, 0.075), rgba(15, 23, 42, 0.65));
}

.formula-panel code {
  display: block;
  margin-top: 0.55rem;
  padding: 0.7rem 0.85rem;
  overflow-x: auto;
  border-radius: 0.5rem;
  color: #fde68a;
  background: rgba(2, 6, 23, 0.72);
  font-size: 0.82rem;
  white-space: nowrap;
}

.calculator-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.5rem;
}

.calculator-form,
.calculator-results {
  padding: 1.5rem;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 1rem;
  background: rgba(15, 23, 42, 0.7);
}

.calculator-form label {
  display: block;
  margin-top: 1rem;
  color: #e2e8f0;
  font-size: 0.875rem;
  font-weight: 700;
}

.calculator-form label:first-of-type {
  margin-top: 0;
}

.calculator-form input,
.calculator-form select {
  width: 100%;
  margin-top: 0.45rem;
  padding: 0.8rem 0.9rem;
  border: 1px solid #475569;
  border-radius: 0.55rem;
  color: #fff;
  background: #0f172a;
}

.calculator-form input:focus,
.calculator-form select:focus {
  border-color: #facc15;
  outline: 3px solid rgba(250, 204, 21, 0.2);
}

.calculator-form small {
  display: block;
  margin-top: 0.35rem;
  color: #94a3b8;
  line-height: 1.5;
}

.calculator-button,
.print-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 1.25rem;
  padding: 0.78rem 1.15rem;
  border-radius: 999px;
  color: #020617;
  background: #eab308;
  font-weight: 800;
}

.calculator-button:hover,
.print-button:hover {
  background: #facc15;
}

.calculator-button:focus-visible,
.print-button:focus-visible {
  outline: 3px solid #fff;
  outline-offset: 3px;
}

.calculator-error {
  min-height: 1.4rem;
  margin-top: 0.8rem;
  color: #fda4af;
  font-size: 0.88rem;
}

.calculator-results[hidden] {
  display: none;
}

.result-list {
  display: grid;
  gap: 0.8rem;
  margin-top: 1rem;
}

.result-item {
  padding: 0.9rem 1rem;
  border-left: 2px solid rgba(234, 179, 8, 0.7);
  background: rgba(2, 6, 23, 0.55);
}

.result-item dt {
  color: #94a3b8;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.result-item dd {
  margin-top: 0.25rem;
  color: #fff;
  font-family: "Playfair Display", serif;
  font-size: 1.55rem;
  font-weight: 700;
}

.checklist-panel {
  padding: 1.4rem;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 1rem;
  background: rgba(15, 23, 42, 0.62);
}

.checklist-panel h3 {
  margin-top: 0;
}

.checklist {
  padding-left: 0 !important;
  list-style: none !important;
}

.checklist li {
  position: relative;
  min-height: 2rem;
  padding-left: 2.2rem;
}

.checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.2rem;
  width: 1.2rem;
  height: 1.2rem;
  border: 1.5px solid #94a3b8;
  border-radius: 0.2rem;
  background: #020617;
}

.related-resources {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 15rem), 1fr));
  gap: 1rem;
  margin-top: 1.25rem;
}

.related-resources a {
  padding: 1rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 0.75rem;
  color: #e2e8f0;
  background: rgba(15, 23, 42, 0.55);
  font-weight: 700;
  text-decoration: none;
}

.related-resources a:hover,
.related-resources a:focus-visible {
  border-color: rgba(234, 179, 8, 0.55);
  color: #facc15;
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid #facc15;
  outline-offset: 3px;
}

@media (min-width: 960px) {
  .article-layout {
    grid-template-columns: minmax(0, 1fr) 18rem;
  }

  .article-toc {
    position: sticky;
    top: 1.5rem;
  }

  .calculator-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .resource-card {
    transition: none;
  }

  .resource-card:hover {
    transform: none;
  }
}

@media print {
  @page {
    margin: 0.6in;
  }

  body {
    color: #111827 !important;
    background: #fff !important;
  }

  header,
  footer,
  .resource-hero::after,
  .article-toc,
  .no-print,
  .related-resources {
    display: none !important;
  }

  .resource-shell,
  .article-body {
    width: 100%;
    max-width: none;
  }

  .resource-hero {
    border: 0;
  }

  .resource-hero .resource-shell {
    padding-block: 0 1rem !important;
  }

  .resource-kicker,
  .resource-meta,
  .resource-deck,
  .article-body p,
  .article-body li,
  .article-body dd,
  .source-list,
  .resource-breadcrumb {
    color: #374151 !important;
  }

  .resource-title,
  .article-body h2,
  .article-body h3,
  .checklist-panel h3 {
    color: #111827 !important;
  }

  .checklist-panel,
  .article-callout {
    break-inside: avoid;
    border-color: #9ca3af;
    background: #fff !important;
  }

  .checklist li::before {
    border-color: #111827;
    background: #fff;
  }

  a {
    color: #111827 !important;
    text-decoration: none !important;
  }
}