:root {
  --paper: #f5f0e9;
  --paper-deep: #ece4da;
  --ink: #201a18;
  --ink-soft: #5e5651;
  --line: rgba(32, 26, 24, 0.16);
  --line-strong: rgba(32, 26, 24, 0.34);
  --rose: #a86475;
  --rose-soft: #e8c9d0;
  --plum: #5c4058;
  --cream: #fffaf4;
  --dark: #181311;
  --dark-soft: #2a2220;
  --white: #ffffff;
  --radius: 24px;
  --shadow: 0 20px 70px rgba(44, 31, 27, 0.08);
  --sans: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --serif: Georgia, "Times New Roman", serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

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

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

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

.skip-link {
  position: absolute;
  left: 1rem;
  top: -5rem;
  z-index: 100;
  background: var(--ink);
  color: var(--white);
  padding: 0.75rem 1rem;
  border-radius: 999px;
}

.skip-link:focus {
  top: 1rem;
}

.shell {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
}

.site-header {
  position: relative;
  z-index: 10;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--paper) 94%, transparent);
  backdrop-filter: blur(16px);
}

.header-inner {
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 0.45rem;
  text-decoration: none;
  font-family: var(--serif);
  font-size: 1.18rem;
  letter-spacing: -0.02em;
}

.brand-mark {
  color: var(--rose);
  font-family: var(--sans);
  font-size: 0.67rem;
  font-weight: 800;
  letter-spacing: 0.17em;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.35rem 1rem;
  flex-wrap: wrap;
  font-size: 0.86rem;
  font-weight: 700;
}

.site-nav a {
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--plum);
  border-color: currentColor;
}

.hero {
  padding: clamp(5rem, 11vw, 9.5rem) 0 clamp(4rem, 9vw, 7rem);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(260px, 0.55fr);
  gap: clamp(2.5rem, 7vw, 7rem);
  align-items: end;
}

.eyebrow {
  margin: 0 0 1.25rem;
  color: var(--plum);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero h1,
.page-hero h1 {
  margin: 0;
  max-width: 10ch;
  font-family: var(--serif);
  font-size: clamp(3.6rem, 9vw, 7.8rem);
  font-weight: 400;
  letter-spacing: -0.065em;
  line-height: 0.91;
}

.hero h1 em,
.page-hero h1 em {
  color: var(--rose);
  font-style: italic;
  font-weight: 400;
}

.hero-side {
  padding-bottom: 0.65rem;
}

.hero-lede,
.page-lede {
  margin: 0;
  color: var(--ink-soft);
  font-family: var(--serif);
  font-size: clamp(1.25rem, 2.1vw, 1.7rem);
  line-height: 1.42;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 2rem;
}

.tag {
  display: inline-flex;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 0.5rem 0.75rem;
  background: rgba(255, 255, 255, 0.28);
  font-size: 0.73rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.button-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.7rem 1rem;
  border: 1px solid var(--ink);
  border-radius: 999px;
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 800;
}

.button-link.primary {
  background: var(--ink);
  color: var(--cream);
}

.button-link:hover {
  background: var(--plum);
  border-color: var(--plum);
  color: var(--white);
}

.dark-band {
  background: var(--dark);
  color: var(--cream);
}

.dark-band .shell {
  padding-top: clamp(4rem, 8vw, 7rem);
  padding-bottom: clamp(4rem, 8vw, 7rem);
}

.dark-band .eyebrow {
  color: var(--rose-soft);
}

.dark-band p {
  color: #d9d0c9;
}

.statement {
  max-width: 16ch;
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2.2rem, 5vw, 4.7rem);
  line-height: 1.04;
  letter-spacing: -0.045em;
}

.section {
  padding: clamp(4rem, 8vw, 7rem) 0;
}

.section + .section {
  border-top: 1px solid var(--line);
}

.section-head {
  display: grid;
  grid-template-columns: minmax(180px, 0.45fr) minmax(0, 1.1fr);
  gap: 2rem 4rem;
  margin-bottom: 2.6rem;
  align-items: start;
}

.section-head h2,
.prose h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2.1rem, 4vw, 3.8rem);
  font-weight: 400;
  letter-spacing: -0.045em;
  line-height: 1.04;
}

.section-head p {
  margin: 0;
  max-width: 68ch;
  color: var(--ink-soft);
}

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

.card {
  min-height: 100%;
  padding: clamp(1.35rem, 3vw, 2rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.34);
  box-shadow: var(--shadow);
}

.card-index {
  display: block;
  margin-bottom: 2.5rem;
  color: var(--rose);
  font-family: var(--serif);
  font-size: 2rem;
}

.card h3 {
  margin: 0 0 0.65rem;
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: 400;
}

.card p {
  margin: 0;
  color: var(--ink-soft);
}

.classification-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
}

.classification {
  padding: 1.25rem;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--cream);
}

.classification strong {
  display: block;
  margin-bottom: 0.4rem;
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.classification p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.classification.supported {
  border-left: 6px solid #4c7161;
}

.classification.mixed {
  border-left: 6px solid #9b7d44;
}

.classification.false {
  border-left: 6px solid #9a4f55;
}

.classification.none {
  border-left: 6px solid #5c5c67;
}

.classification.unresolved {
  border-left: 6px solid #6a5b8c;
}

.callout {
  padding: clamp(1.5rem, 4vw, 3rem);
  border-radius: var(--radius);
  background: var(--paper-deep);
}

.callout blockquote {
  margin: 0;
  max-width: 27ch;
  font-family: var(--serif);
  font-size: clamp(1.8rem, 3.5vw, 3.1rem);
  line-height: 1.1;
  letter-spacing: -0.035em;
}

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

.page-hero {
  padding: clamp(4.5rem, 9vw, 8rem) 0 clamp(3rem, 6vw, 5rem);
  border-bottom: 1px solid var(--line);
}

.page-hero h1 {
  max-width: 13ch;
  font-size: clamp(3.1rem, 7vw, 6.6rem);
}

.page-hero .page-lede {
  max-width: 36ch;
  margin-top: 1.7rem;
}

.prose-layout {
  display: grid;
  grid-template-columns: minmax(180px, 0.34fr) minmax(0, 1fr);
  gap: 2rem 5rem;
  padding: clamp(3.5rem, 7vw, 6rem) 0;
}

.side-label {
  color: var(--plum);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.prose {
  max-width: 780px;
}

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

.prose h2 {
  margin-top: 3.5rem;
  margin-bottom: 1rem;
  font-size: clamp(1.8rem, 3.3vw, 3rem);
}

.prose h3 {
  margin-top: 2.4rem;
  margin-bottom: 0.65rem;
  font-family: var(--serif);
  font-size: 1.45rem;
  font-weight: 400;
}

.prose p,
.prose li {
  color: var(--ink-soft);
}

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

.prose ul,
.prose ol {
  padding-left: 1.25rem;
}

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

.rule-box {
  margin: 2rem 0;
  padding: 1.4rem;
  border: 1px solid var(--line-strong);
  border-radius: 18px;
  background: var(--cream);
}

.rule-box p {
  margin: 0;
  color: var(--ink);
  font-family: var(--serif);
  font-size: 1.3rem;
}

.data-list {
  display: grid;
  gap: 0.75rem;
  margin: 2rem 0;
}

.data-row {
  display: grid;
  grid-template-columns: minmax(145px, 0.32fr) minmax(0, 1fr);
  gap: 1rem;
  padding: 1rem 0;
  border-top: 1px solid var(--line);
}

.data-row:last-child {
  border-bottom: 1px solid var(--line);
}

.data-row strong {
  font-size: 0.78rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.data-row span {
  color: var(--ink-soft);
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 3rem 0 2.4rem;
}

.footer-nav {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.55rem 1.15rem;
  margin-bottom: 2.2rem;
  color: var(--ink-soft);
  font-size: 0.78rem;
  font-weight: 700;
}

.footer-nav a {
  text-decoration: none;
}

.signature {
  text-align: center;
}

.signature-visible {
  margin: 0;
  font-family: var(--serif);
  font-size: 1rem;
}

.creator-attribution {
  display: inline-block;
  margin-top: 0.22rem;
  color: color-mix(in srgb, var(--ink-soft) 52%, transparent);
  font-size: 0.58rem;
  line-height: 1.2;
  text-decoration: none;
}

.creator-attribution:hover,
.creator-attribution:focus-visible {
  color: var(--plum);
  text-decoration: underline;
}

.footer-note {
  max-width: 700px;
  margin: 2rem auto 0;
  color: var(--ink-soft);
  font-size: 0.72rem;
  text-align: center;
}

@media (max-width: 900px) {
  .header-inner {
    align-items: flex-start;
    flex-direction: column;
    padding: 1rem 0;
  }

  .site-nav {
    justify-content: flex-start;
  }

  .hero-grid,
  .section-head,
  .prose-layout {
    grid-template-columns: 1fr;
  }

  .hero-side {
    max-width: 620px;
  }

  .card-grid {
    grid-template-columns: 1fr;
  }

  .prose-layout {
    gap: 1rem;
  }
}

@media (max-width: 620px) {
  .shell {
    width: min(100% - 1.25rem, 1180px);
  }

  .hero h1,
  .page-hero h1 {
    font-size: clamp(3rem, 18vw, 5rem);
  }

  .classification-grid {
    grid-template-columns: 1fr;
  }

  .data-row {
    grid-template-columns: 1fr;
    gap: 0.25rem;
  }

  .button-link {
    width: 100%;
  }
}

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