:root {
  --bg: #fbfaf8;
  --surface: #ffffff;
  --ink: #1a1c1e;
  --ink-soft: #4b4f55;
  --line: #e2e0dc;
  --accent: #3f5aa6;
  --accent-ink: #2f4585;
  --chip: #eef1fa;
  --radius: 14px;
  --measure: 46rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #131518;
    --surface: #1b1e23;
    --ink: #e8eaed;
    --ink-soft: #a9aeb6;
    --line: #2c3037;
    --accent: #9db2f0;
    --accent-ink: #bdcdf6;
    --chip: #232834;
  }
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 17px/1.65 "Roboto", system-ui, -apple-system, "Segoe UI", sans-serif;
  font-optical-sizing: auto;
}

.skip {
  position: absolute;
  left: -9999px;
}
.skip:focus {
  left: 1rem;
  top: 1rem;
  z-index: 10;
  padding: 0.5rem 0.9rem;
  background: var(--surface);
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.18);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.masthead {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  padding: clamp(2.5rem, 7vw, 4.5rem) 1.25rem clamp(1.75rem, 4vw, 2.5rem);
}

.eyebrow {
  margin: 0 0 0.6rem;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--accent);
}

h1 {
  margin: 0;
  max-width: var(--measure);
  font-size: clamp(2rem, 6vw, 2.9rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.lede {
  max-width: var(--measure);
  margin: 1rem 0 0;
  font-size: 1.06rem;
  color: var(--ink-soft);
}

.meta {
  display: grid;
  gap: 0.35rem 2rem;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  max-width: 62rem;
  margin: 1.75rem 0 0;
  padding: 1rem 1.15rem;
  background: var(--chip);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.meta > div { display: flex; flex-wrap: wrap; gap: 0.1rem 0.5rem; align-items: baseline; }
.meta dt {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.meta dd { margin: 0; font-size: 0.95rem; }

main {
  max-width: 62rem;
  margin: 0 auto;
  padding: clamp(1rem, 4vw, 2rem) 1.25rem 3rem;
}

section {
  max-width: var(--measure);
  margin: 0 auto clamp(2rem, 5vw, 3rem);
}

h2 {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  margin: 0 0 0.85rem;
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  scroll-margin-top: 1rem;
}

.num {
  flex: none;
  display: grid;
  place-items: center;
  width: 1.6rem;
  height: 1.6rem;
  border-radius: 50%;
  background: var(--chip);
  border: 1px solid var(--line);
  color: var(--accent-ink);
  font-size: 0.82rem;
  font-weight: 700;
}

p, li { max-width: var(--measure); }
p { margin: 0 0 0.9rem; }
section > p:last-child { margin-bottom: 0; }

ul, ol { margin: 0 0 0.9rem; padding-left: 1.35rem; }
li { margin: 0 0 0.5rem; }
li:last-child { margin-bottom: 0; }

a {
  color: var(--accent-ink);
  text-decoration: underline;
  text-underline-offset: 2px;
  overflow-wrap: anywhere;
}
a:hover { color: var(--accent); }

code {
  padding: 0.12em 0.4em;
  border-radius: 5px;
  background: var(--chip);
  border: 1px solid var(--line);
  font-family: ui-monospace, "Cascadia Mono", Consolas, monospace;
  font-size: 0.86em;
}

.table-wrap {
  margin: 0 0 1.1rem;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.94rem;
}

th, td {
  padding: 0.75rem 0.9rem;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
}

thead th {
  background: var(--chip);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-soft);
  white-space: nowrap;
}

tbody tr:last-child td { border-bottom: 0; }
tbody td:first-child { font-weight: 500; }

footer {
  max-width: 62rem;
  margin: 0 auto;
  padding: 1.25rem;
  border-top: 1px solid var(--line);
  font-size: 0.85rem;
  color: var(--ink-soft);
}

@media (max-width: 40rem) {
  body { font-size: 16px; }
  thead { display: none; }
  tbody tr { display: block; padding: 0.65rem 0.9rem; }
  tbody tr + tr { border-top: 1px solid var(--line); }
  tbody td { display: block; padding: 0.15rem 0; border: 0; }
  tbody td::before {
    content: attr(data-label);
    display: block;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--ink-soft);
  }
  tbody td:first-child::before,
  tbody td:not([data-label])::before { display: none; }
  tbody td:not([data-label]) { font-weight: 700; margin-bottom: 0.3rem; }
  .table-wrap { overflow-x: visible; }
}