/* marketcap.pl — hand-written, no framework. System fonts, light/dark, no inline styles. */
:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --fg: #16201d;
  --muted: #4a5753;
  --line: #d3ddd9;
  --surface: #f1f5f3;
  --link: #0a5c4a;
  --primary: #0a5c4a;
  --on-primary: #ffffff;
  --accent: #f2b84b;
  --mark-bg: #fff0bd;
  --mark-fg: #4a3000;
  --callout-bg: #edf4f1;
  --notice-bg: #fff7dc;
  --notice-line: #d9a82b;
  --wrap: 72rem;
  --prose: 44rem;
  --radius: 0.5rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1614;
    --fg: #e8efec;
    --muted: #a9b9b3;
    --line: #2b3b36;
    --surface: #15211e;
    --link: #6fd8ba;
    --primary: #167a63;
    --on-primary: #ffffff;
    --mark-bg: #4a3a06;
    --mark-fg: #ffe7a0;
    --callout-bg: #13201c;
    --notice-bg: #2a2410;
    --notice-line: #8a6d1f;
  }
}

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 1.0625rem/1.65 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

a {
  color: var(--link);
  text-underline-offset: 0.18em;
}

a:hover {
  text-decoration-thickness: 2px;
}

:focus-visible {
  outline: 3px solid var(--link);
  outline-offset: 2px;
  border-radius: 2px;
}

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

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.skip-link {
  position: absolute;
  left: 0.75rem;
  top: -4rem;
  z-index: 10;
  padding: 0.6rem 1rem;
  background: var(--primary);
  color: var(--on-primary);
  border-radius: var(--radius);
}

.skip-link:focus {
  top: 0.75rem;
}

/* header */
.site-header {
  border-bottom: 1px solid var(--line);
}

.site-header .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 1.5rem;
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--fg);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.01em;
  text-decoration: none;
}

.brand img {
  display: block;
  border-radius: 7px;
}

.site-nav ul {
  display: flex;
  gap: 1.25rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav a {
  display: inline-block;
  padding: 0.35rem 0;
  color: var(--fg);
  text-decoration: none;
  font-weight: 500;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--link);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 0.3em;
}

/* main */
main {
  flex: 1 0 auto;
  padding: 2rem 0 3.5rem;
}

main > .wrap > * + * {
  margin-top: 1.5rem;
}

h1,
h2,
h3 {
  line-height: 1.25;
  letter-spacing: -0.01em;
}

h1 {
  font-size: clamp(1.75rem, 1.2rem + 2.4vw, 2.5rem);
  margin: 0 0 0.75rem;
}

.prose {
  max-width: var(--prose);
}

.prose h2 {
  font-size: 1.6rem;
  margin: 2.75rem 0 0.75rem;
}

.prose h3 {
  font-size: 1.25rem;
  margin: 2rem 0 0.5rem;
}

.prose p,
.prose ul,
.prose ol,
.prose figure,
.prose blockquote {
  margin: 1rem 0;
}

.prose li + li {
  margin-top: 0.4rem;
}

.prose a,
.prose code {
  overflow-wrap: anywhere;
}

.header-anchor {
  color: inherit;
  text-decoration: none;
}

.header-anchor:hover {
  text-decoration: underline;
}

/* hero + cards */
.hero {
  max-width: 52rem;
  padding: 1.5rem 0 0.5rem;
}

.hero .lead {
  font-size: 1.2rem;
  color: var(--muted);
}

.eyebrow {
  margin: 0 0 0.5rem;
  color: var(--muted);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.section-title {
  font-size: 1.5rem;
  margin: 2.5rem 0 1rem;
}

.cards {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 19rem), 1fr));
  margin: 0;
  padding: 0;
  list-style: none;
}

.card {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  height: 100%;
  padding: 1.25rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.card :is(h2, h3) {
  margin: 0;
  font-size: 1.15rem;
}

.card :is(h2, h3) a {
  color: var(--fg);
  text-decoration: none;
}

.card :is(h2, h3) a:hover {
  color: var(--link);
  text-decoration: underline;
}

.card p {
  margin: 0;
}

.card-meta,
.meta {
  color: var(--muted);
  font-size: 0.9rem;
}

.card-meta {
  margin-bottom: 0.25rem;
}

.tag {
  display: inline-block;
  padding: 0.05rem 0.55rem;
  margin-right: 0.35rem;
  background: var(--primary);
  color: var(--on-primary);
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* article */
.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 0.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--muted);
  font-size: 0.9rem;
}

.breadcrumb li + li::before {
  content: "›";
  margin-right: 0.5rem;
}

.article-header {
  max-width: var(--prose);
}

.meta {
  margin: 0.25rem 0 1rem;
}

.ai-notice {
  margin: 1.25rem 0;
  padding: 0.9rem 1.1rem;
  background: var(--notice-bg);
  border-left: 4px solid var(--notice-line);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 0.95rem;
}

.ai-notice p {
  margin: 0;
}

.toc {
  max-width: var(--prose);
  padding: 1rem 1.25rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.toc h2 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
}

.toc ol {
  margin: 0;
  padding-left: 1.25rem;
}

.toc li {
  margin: 0.2rem 0;
}

mark.unverified {
  padding: 0 0.3em;
  background: var(--mark-bg);
  color: var(--mark-fg);
  border-radius: 3px;
  font-size: 0.92em;
}

mark.unverified a {
  color: inherit;
}

blockquote.callout {
  padding: 0.75rem 1.1rem;
  background: var(--callout-bg);
  border-left: 4px solid var(--primary);
  border-radius: 0 var(--radius) var(--radius) 0;
}

blockquote.callout p {
  margin: 0.4rem 0;
}

.table-wrap {
  max-width: 100%;
  margin: 1.5rem 0;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.table-wrap table {
  width: 100%;
  min-width: 34rem;
  border-collapse: collapse;
  font-size: 0.94rem;
  line-height: 1.45;
}

.table-wrap th,
.table-wrap td {
  padding: 0.6rem 0.8rem;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.table-wrap th {
  background: var(--surface);
  font-weight: 700;
}

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

figure.chart {
  margin: 1.75rem 0;
}

figure.chart .chart-link {
  display: block;
}

figure.chart img {
  display: block;
  width: 100%;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

figcaption {
  margin-top: 0.5rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.sources {
  margin-top: 3rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--line);
}

.sources ul {
  font-size: 0.94rem;
  padding-left: 1.25rem;
}

.sources li {
  overflow-wrap: anywhere;
}

.disclaimer {
  color: var(--muted);
  font-size: 0.95rem;
  font-style: italic;
}

.related {
  max-width: var(--prose);
  margin-top: 3rem;
}

.related h2 {
  font-size: 1.25rem;
}

.report-error {
  margin-top: 1.5rem;
  font-size: 0.95rem;
}

/* info pages */
.page h2 {
  font-size: 1.4rem;
  margin: 2.25rem 0 0.5rem;
}

.page .updated {
  color: var(--muted);
  font-size: 0.9rem;
}

.page dl {
  margin: 1rem 0;
}

.page dt {
  font-weight: 700;
  margin-top: 0.75rem;
}

.page dd {
  margin: 0.15rem 0 0;
}

/* footer */
.site-footer {
  border-top: 1px solid var(--line);
  background: var(--surface);
  font-size: 0.94rem;
}

.site-footer .wrap {
  display: grid;
  gap: 0.75rem;
  padding-top: 1.75rem;
  padding-bottom: 1.75rem;
}

.site-footer ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.25rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-footer p {
  margin: 0;
  color: var(--muted);
}

@media (min-width: 48rem) {
  main {
    padding-top: 2.75rem;
  }
}