/* Structure shared by every variant. Looks live in a.css–d.css as tokens plus a few overrides. */
:root {
  --bg: #fff; --surface: #fff; --ink: #0a0a0a; --text: #262626; --muted: #737373; --line: #e5e5e5; --accent: #0f6b5c; --on-accent: #fff;
  --font: system-ui, sans-serif; --display: Georgia, serif; --label-font: var(--font);
  --display-weight: 400; --display-tracking: -0.015em;
  --radius: 6px; --maxw: 1200px; --col: 720px; --side: 260px; --gap: 120px; --sec: 88px;
  --h1: clamp(2.4rem, 4.6vw, 3.6rem); --h2: clamp(1.6rem, 2.6vw, 2.1rem); --size: 17px;
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 96px; }
body { margin: 0; background: var(--bg); color: var(--text); font: var(--size)/1.65 var(--font); -webkit-font-smoothing: antialiased; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
h1, h2, h3 { margin: 0; color: var(--ink); }
h1, h2 { font-family: var(--display); font-weight: var(--display-weight); letter-spacing: var(--display-tracking); }
h1 { font-size: var(--h1); line-height: 1.06; }
h2 { font-size: var(--h2); line-height: 1.15; }
h3 { font-size: 1.05rem; font-weight: 600; }
h3 a { color: var(--ink); }
p { margin: 0; }
.muted { color: var(--muted); }
.label, .eyebrow { font: 600 0.72rem/1.3 var(--label-font); letter-spacing: 0.09em; text-transform: uppercase; color: var(--muted); }
.lead { font-size: 1.1rem; color: var(--text); }

/* header + footer */
.top { position: sticky; top: 0; z-index: 5; display: flex; align-items: center; gap: 40px; padding: 14px 32px; background: var(--bg); border-bottom: 1px solid var(--line); }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 600; color: var(--ink); letter-spacing: -0.01em; }
.brand:hover { text-decoration: none; }
.mark { width: 22px; height: 22px; border-radius: calc(var(--radius) * 0.8); background: var(--accent); }
.top nav { display: flex; gap: 28px; font-size: 0.95rem; }
.top nav a { color: var(--muted); }
.top nav a[aria-current] { color: var(--ink); font-weight: 500; }
.search { margin-left: auto; }
input[type="search"] { font: inherit; font-size: 0.92rem; color: var(--ink); background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 9px 12px; width: 240px; }
.foot { max-width: var(--maxw); margin: 0 auto; padding: 72px 32px 96px; display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; border-top: 1px solid var(--line); font-size: 0.9rem; color: var(--muted); }
.foot .label { margin-bottom: 12px; }
.foot p + p { margin-top: 6px; }
.foot-brand p { margin-top: 12px; max-width: 280px; }

/* page + article */
.page { max-width: var(--maxw); margin: 0 auto; padding: 72px 32px 120px; }
.crumbs { display: flex; flex-wrap: wrap; gap: 10px; font-size: 0.9rem; color: var(--muted); margin-bottom: 56px; }
.crumbs a { color: var(--muted); }
.crumbs [aria-current] { color: var(--ink); }
.layout { display: grid; grid-template-columns: minmax(0, var(--col)) var(--side); gap: var(--gap); justify-content: space-between; }
.layout.single { grid-template-columns: minmax(0, var(--col)); }
.article > .eyebrow { margin-bottom: 20px; }
.meta { margin: 28px 0 44px; font-size: 0.85rem; color: var(--muted); }
.meta a { color: var(--muted); }
.answer { padding: 24px 28px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); }
.answer .label { color: var(--accent); margin-bottom: 8px; }
.article section { margin-top: var(--sec); }
.article section > h2 + * { margin-top: 24px; }
.article section > .lead + * { margin-top: 28px; }
.article section > p + p { margin-top: 16px; }

/* tables */
.table-wrap { overflow-x: auto; margin-top: 44px; }
section .table-wrap { margin-top: 28px; }
table { width: 100%; border-collapse: collapse; font-size: 0.95rem; font-variant-numeric: tabular-nums; }
th, td { text-align: left; padding: 11px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
thead th { font-weight: 600; color: var(--ink); font-size: 0.85rem; }
tbody th { font-weight: 500; color: var(--ink); }
.note { margin-top: 12px; font-size: 0.8rem; color: var(--muted); }

/* lists */
.checks { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.checks li { position: relative; padding-left: 26px; }
.checks li::before { content: ""; position: absolute; left: 2px; top: 0.55em; width: 10px; height: 5px; border: solid var(--accent); border-width: 0 0 2px 2px; transform: rotate(-45deg); }

/* ranked picks */
.pick { padding: 32px 0; border-bottom: 1px solid var(--line); }
.pick-head { display: flex; gap: 20px; align-items: baseline; }
.rank { font: var(--display-weight) 2.4rem/1 var(--display); color: var(--ink); min-width: 44px; }
.pick-head .muted { font-size: 0.85rem; margin-top: 2px; }
.pick-facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin: 20px 0 0 64px; }
.pick-facts dt, .glance dt { font-size: 0.78rem; color: var(--muted); }
.pick-facts dd, .glance dd { margin: 2px 0 0; color: var(--ink); }
.links { display: flex; flex-wrap: wrap; gap: 22px; margin: 16px 0 0 64px; font-size: 0.95rem; }
.pick-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.card { padding: 24px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.card .label { margin-bottom: 14px; color: var(--ink); }

/* side column */
.side { position: sticky; top: 96px; align-self: start; display: grid; gap: 36px; }
.glance { padding: 22px 24px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.glance .label { margin-bottom: 14px; }
.glance dl { margin: 0; display: grid; gap: 12px; font-size: 0.92rem; }
.btn { display: block; margin-top: 18px; padding: 10px 14px; text-align: center; font-weight: 500; font-size: 0.92rem; color: var(--on-accent); background: var(--accent); border: 1px solid var(--accent); border-radius: var(--radius); }
.btn:hover { text-decoration: none; filter: brightness(1.08); }
.btn.ghost { color: var(--ink); background: transparent; border-color: var(--line); margin-top: 10px; }
.toc .label { margin-bottom: 14px; }
.toc ol { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; font-size: 0.9rem; line-height: 1.45; }
.toc a { color: var(--text); }
.toc a:hover { color: var(--accent); }
.sources a { word-break: break-all; }
.related { margin-top: 64px; padding-top: 28px; border-top: 1px solid var(--line); }
.related .label { margin-bottom: 14px; }
.related ul { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 12px 28px; }

/* home */
.hero { display: grid; grid-template-columns: 1.2fr 1fr; gap: 80px; align-items: center; padding: 56px 0 40px; }
.hero h1 { font-size: clamp(2.6rem, 5.2vw, 4.2rem); margin: 20px 0 24px; }
.search-lg { display: flex; gap: 8px; margin-top: 36px; }
.search-lg input { flex: 1; width: auto; padding: 13px 14px; font-size: 0.95rem; }
.search-lg button { font: inherit; font-weight: 500; padding: 0 22px; color: var(--on-accent); background: var(--accent); border: 0; border-radius: var(--radius); cursor: pointer; }
.popular { display: flex; flex-wrap: wrap; gap: 8px 20px; margin-top: 20px; }
.hero-card { margin: 0; padding: 20px; border: 1px solid var(--line); border-radius: calc(var(--radius) * 1.6); background: var(--surface); }
.hero-card .table-wrap { margin-top: 12px; }
.hero-card figcaption { margin-top: 12px; font-size: 0.8rem; color: var(--muted); }
.band { margin-top: 136px; }
.band-head { display: flex; justify-content: space-between; align-items: baseline; gap: 24px; padding-bottom: 28px; border-bottom: 1px solid var(--line); }
.band .table-wrap { margin-top: 12px; }
.cat-grid { list-style: none; padding: 0; margin: 36px 0 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px 40px; }
.cat-grid span { color: var(--muted); }
.steps { list-style: none; counter-reset: step; padding: 0; margin: 40px 0 32px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 40px; }
.steps li { counter-increment: step; display: grid; gap: 8px; }
.steps li::before { content: counter(step); font: var(--display-weight) 2rem/1 var(--display); color: var(--ink); }
.steps span { color: var(--muted); font-size: 0.92rem; }

@media (max-width: 980px) {
  .layout { grid-template-columns: minmax(0, 1fr); gap: 56px; }
  .side { position: static; }
  .toc { display: none; }
  .hero { grid-template-columns: 1fr; gap: 48px; }
  .cat-grid, .steps { grid-template-columns: repeat(2, 1fr); }
  .foot { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .top { gap: 16px; padding: 12px 16px; }
  .top nav, .search { display: none; }
  .page { padding: 40px 16px 96px; }
  .pick-facts, .links { margin-left: 0; }
  .pick-facts, .pick-cards { grid-template-columns: 1fr 1fr; }
  .cat-grid, .steps { grid-template-columns: 1fr; }
}
.pair-list { columns: 2; gap: 32px; padding-left: 18px; margin: 20px 0 0; } .pair-list li { margin: 4px 0; break-inside: avoid; }
thead th { white-space: nowrap; }