:root {
  --paper: #f3eee4;
  --paper-2: #e7e0d2;
  --cream: #fbf7f1;
  --ink: #1c1915;
  --ink-soft: #3c3832;
  --muted: #5f584f;
  --line: #d5cdbf;
  --pine: #1b3c32;
  --pine-2: #2a5648;
  --copper: #c4622d;
  --copper-deep: #8d3e18;
  --mist: #e5efe8;
  --max: 1120px;
  --serif: "Source Serif 4", Georgia, "Iowan Old Style", serif;
  --sans: Syne, "Avenir Next", "Trebuchet MS", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
}

*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 1.125rem;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--pine-2); }

:focus-visible {
  outline: 3px solid var(--copper);
  outline-offset: 3px;
}

::selection { background: #f0d3c0; color: var(--ink); }

.skip {
  position: absolute;
  left: 16px;
  top: -60px;
  background: var(--ink);
  color: var(--cream);
  padding: 10px 14px;
  z-index: 100;
}

.skip:focus { top: 12px; }

.wrap {
  width: min(var(--max), calc(100% - 48px));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(243, 238, 228, 0.94);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  min-height: 78px;
  position: relative;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--ink);
  font-family: var(--sans);
  font-weight: 800;
  letter-spacing: -0.04em;
  font-size: 1.35rem;
}

.brand svg { width: 36px; height: 36px; flex: none; }

.nav-toggle {
  display: none;
  border: 0;
  background: var(--pine);
  color: var(--cream);
  font-family: var(--sans);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.01em;
  padding: 12px 18px;
  min-height: 48px;
  border-radius: 999px;
  cursor: pointer;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 8px 22px;
}

.nav a {
  color: var(--ink);
  text-decoration: none;
  font-family: var(--sans);
  font-weight: 700;
  font-size: 0.98rem;
  letter-spacing: -0.02em;
}

.nav a:hover,
.nav a[aria-current="page"] { color: var(--copper-deep); }

.desk-strip {
  background: var(--pine);
  color: #e7f0ea;
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  line-height: 1.4;
}

.desk-strip .wrap { padding: 10px 0; }

.page-head { padding: 48px 0 10px; }

.kicker {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--pine);
  margin: 0 0 12px;
}

h1, h2, h3, h4 {
  font-family: var(--sans);
  font-weight: 800;
  letter-spacing: -0.045em;
  line-height: 1.02;
  color: var(--ink);
}

h1 {
  font-size: clamp(2.5rem, 6vw, 4.6rem);
  margin: 0 0 18px;
  max-width: 16ch;
}

h2 {
  font-size: clamp(1.7rem, 3vw, 2.35rem);
  margin: 2.4rem 0 0.7rem;
  max-width: 40rem;
}

h3 { font-size: 1.45rem; margin: 1.6rem 0 0.4rem; letter-spacing: -0.03em; }

h4 {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin: 0 0 8px;
}

.lede, .direct { font-size: 1.2rem; }

.byline {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.02em;
  margin: 18px 0 0;
}

.byline a { color: var(--ink); }

.hero {
  margin: 28px 0 8px;
}

.hero img {
  width: 100%;
  border-radius: 18px;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: var(--paper-2);
}

.hero figcaption {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--muted);
  margin-top: 8px;
}

.answer {
  background: var(--cream);
  border: 1px solid var(--line);
  border-left: 8px solid var(--copper);
  border-radius: 0 16px 16px 0;
  padding: 22px 22px 8px;
  margin: 28px 0 8px;
}

.answer .kicker { color: var(--copper-deep); }

.prose { max-width: 68ch; }

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

.prose a {
  color: var(--pine);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.prose a:hover { color: var(--copper-deep); }

.prose ul, .prose ol { padding-left: 1.2rem; }

.prose li + li { margin-top: 0.35rem; }

.steps {
  list-style: none;
  padding: 0;
  margin: 28px 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.steps li {
  background: var(--mist);
  border-radius: 16px;
  padding: 18px 16px 16px;
}

.steps strong {
  display: block;
  font-family: var(--sans);
  font-size: 1.25rem;
  letter-spacing: -0.04em;
  margin-bottom: 6px;
}

.steps span { display: block; color: var(--ink-soft); font-size: 1rem; }

.spoke-index {
  list-style: none;
  padding: 0;
  margin: 20px 0 10px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.spoke-index a {
  display: flex;
  gap: 14px;
  text-decoration: none;
  color: inherit;
  background: var(--cream);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 16px;
  min-height: 100%;
}

.spoke-index a:hover {
  border-color: var(--pine);
  background: var(--mist);
}

.spoke-index .num {
  font-family: var(--sans);
  font-weight: 800;
  color: var(--copper);
  font-size: 1.2rem;
  letter-spacing: -0.04em;
}

.spoke-index strong {
  display: block;
  font-family: var(--sans);
  letter-spacing: -0.03em;
  font-size: 1.05rem;
  margin-bottom: 4px;
}

.spoke-index em {
  font-style: normal;
  color: var(--muted);
  font-size: 0.98rem;
  display: block;
}

.table-scroll {
  overflow-x: auto;
  margin: 18px 0 28px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--cream);
}

.table-scroll::before {
  content: "Swipe sideways for every column.";
  display: block;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--copper-deep);
  padding: 12px 14px 0;
}

@media (min-width: 980px) {
  .table-scroll::before { display: none; }
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
  font-size: 0.98rem;
}

caption {
  text-align: left;
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 14px 16px 0;
  color: var(--pine);
}

th, td {
  text-align: left;
  padding: 12px 14px;
  vertical-align: top;
  border-top: 1px solid var(--line);
}

th {
  background: var(--pine);
  color: var(--cream);
  font-family: var(--sans);
  font-weight: 700;
  letter-spacing: -0.02em;
  border-top: 0;
  white-space: nowrap;
}

tbody tr:nth-child(even) td { background: #f7f3eb; }

td a { color: var(--ink); font-weight: 600; }

.score {
  font-family: var(--sans);
  font-weight: 800;
  letter-spacing: -0.04em;
}

.wear {
  border-top: 1px solid var(--line);
  padding: 8px 0 20px;
  margin-top: 10px;
}

.scoreline {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--muted);
}

.scoreline strong {
  font-family: var(--sans);
  font-size: 1.8rem;
  color: var(--ink);
  letter-spacing: -0.05em;
  margin-right: 6px;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin: 12px 0;
}

.split ul { margin: 0; padding-left: 1.1rem; }

.src {
  font-size: 0.95rem;
  color: var(--muted);
}

.callout {
  background: var(--mist);
  border-radius: 16px;
  padding: 8px 20px 16px;
  margin: 20px 0;
}

.crumbs {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--muted);
  margin: 0 0 14px;
}

.crumbs a { color: var(--muted); }

.related {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin: 12px 0 20px;
}

.related a {
  display: block;
  text-decoration: none;
  background: var(--pine);
  color: var(--cream);
  border-radius: 16px;
  padding: 16px;
  min-height: 120px;
}

.related a:hover { background: var(--copper-deep); color: white; }

.related span {
  display: block;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.8;
  margin-bottom: 8px;
}

.related strong {
  font-family: var(--sans);
  letter-spacing: -0.03em;
  font-size: 1.15rem;
}

details.faq {
  border-top: 1px solid var(--line);
  padding: 12px 0;
}

details.faq summary {
  cursor: pointer;
}
details.faq summary h3 {
  display: inline;
  margin: 0;
  font-size: 1.15rem;
  letter-spacing: -0.03em;
}

details.faq p { margin: 10px 0 4px; max-width: 68ch; }

.authors {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin: 16px 0 8px;
}

.person {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: start;
  background: var(--cream);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 16px;
  text-decoration: none;
  color: inherit;
}

.person:hover { border-color: var(--pine); }

.mono-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--pine);
  color: var(--cream);
  display: grid;
  place-items: center;
  font-family: var(--sans);
  font-weight: 800;
  letter-spacing: -0.04em;
}

.person strong { font-family: var(--sans); font-size: 1.2rem; letter-spacing: -0.03em; }
.person em { display: block; font-style: normal; color: var(--muted); font-size: 0.95rem; margin-top: 4px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 20px;
  border-radius: 999px;
  background: var(--pine);
  color: var(--cream);
  text-decoration: none;
  font-family: var(--sans);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.btn:hover { background: var(--copper); color: white; }

.cite {
  font-family: var(--mono);
  font-size: 0.82rem;
  background: var(--paper-2);
  border-radius: 12px;
  padding: 14px 16px;
  color: var(--ink-soft);
}

.site-footer {
  background: var(--pine);
  color: #e6efe9;
  margin-top: 48px;
  padding: 42px 0 28px;
}

.site-footer a { color: #f4efe6; text-underline-offset: 3px; }

.foot-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 28px;
}

.site-footer h2 {
  color: #f4efe6;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-family: var(--mono);
  font-weight: 500;
  max-width: none;
  margin: 0 0 12px;
}

.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin: 6px 0; }

.legal {
  margin-top: 28px;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
  font-family: var(--mono);
  font-size: 0.75rem;
  color: #c9dbd3;
}

.not-found h1 { max-width: 12ch; }

@media (max-width: 900px) {
  .nav-toggle { display: inline-flex; }

  .nav {
    display: none;
    position: absolute;
    left: 50%;
    right: auto;
    top: 100%;
    transform: translateX(-50%);
    width: 100vw;
    background: var(--pine);
    padding: 8px 24px 22px;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.18);
  }

  .nav.is-open { display: flex; }

  .nav a {
    color: var(--cream);
    font-size: 1.35rem;
    padding: 14px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.16);
  }

  .nav a[aria-current="page"] { color: #f3c2a4; }

  .spoke-index,
  .steps,
  .split,
  .related,
  .authors,
  .foot-grid { grid-template-columns: 1fr; }

  h1 { max-width: none; }
  .page-head { padding-top: 32px; }
}

@media (max-width: 600px) {
  body { font-size: 1.05rem; }
  .wrap { width: min(var(--max), calc(100% - 32px)); }
  .desk-strip { font-size: 0.68rem; }
}

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

@media print {
  .site-header, .desk-strip, .site-footer, .nav-toggle, .related { display: none; }
  body { background: white; }
  a { text-decoration: underline; }
}