/* Content pages (guides and tool pages). Matches the app's palette; tuned for reading. */
:root {
  --page: min(1120px, 100% - 48px);
  --measure: 42rem;
  --bg: #121214;
  --bg-raised: #1c1c1e;
  --bg-elevated: #2c2c2e;
  --separator: rgba(255, 255, 255, .08);
  --label: #f5f5f7;
  --label-2: rgba(235, 235, 245, .7);
  --label-3: rgba(235, 235, 245, .42);
  --fill: rgba(118, 118, 128, .2);
  --fill-hover: rgba(118, 118, 128, .3);
  --accent: #5e5ce6;
  --accent-hover: #6d6bf0;
  --link: #a5a4ff;
  --radius: 12px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Inter", "Segoe UI", system-ui, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 24px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--label);
  font: 17px/1.65 var(--font);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; }
:focus-visible { outline: 2px solid var(--link); outline-offset: 2px; border-radius: 4px; }

.skip { position: absolute; left: -9999px; }
.skip:focus { left: 16px; top: 16px; z-index: 10; padding: 8px 12px; background: var(--bg-elevated); color: var(--label); }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 36px;
  padding: 0 16px;
  border-radius: 8px;
  background: var(--fill);
  color: var(--label);
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
}
.button:hover { background: var(--fill-hover); text-decoration: none; }
.button.primary { background: var(--accent); color: #fff; }
.button.primary:hover { background: var(--accent-hover); }

/* Navigation */
.nav { display: flex; align-items: center; justify-content: space-between; width: var(--page); height: 64px; margin: 0 auto; }
.brand { display: flex; align-items: center; gap: 9px; color: var(--label); font-size: 15px; font-weight: 600; }
.brand:hover { text-decoration: none; }
.nav nav { display: flex; align-items: center; gap: 24px; }
.nav nav a:not(.button) { color: var(--label-2); font-size: 14px; }
.nav nav a:not(.button):hover { color: var(--label); text-decoration: none; }
.nav .button { height: 32px; font-size: 13px; }

main { width: var(--page); margin: 0 auto; padding-bottom: 48px; }
article { max-width: var(--measure); }
main.tool article, main.index article { max-width: none; }
main.tool article > :not(figure):not(.cta):not(.cards):not(.table-wrap):not(.hero) { max-width: var(--measure); }

.breadcrumbs ol { display: flex; flex-wrap: wrap; gap: 6px; margin: 24px 0 0; padding: 0; list-style: none; color: var(--label-3); font-size: 13px; }
.breadcrumbs li + li::before { content: "/"; margin-right: 6px; color: var(--label-3); }
.breadcrumbs a { color: var(--label-2); }

.page-header { padding: 32px 0 8px; }
h1 { margin: 0; font-size: clamp(32px, 4.4vw, 48px); font-weight: 650; line-height: 1.1; letter-spacing: -.022em; }
.lede { margin: 16px 0 0; color: var(--label-2); font-size: 19px; line-height: 1.55; }
.byline { margin: 16px 0 0; color: var(--label-3); font-size: 14px; }
.byline a { color: var(--label-2); }

h2 { margin: 56px 0 12px; font-size: 26px; font-weight: 650; line-height: 1.25; letter-spacing: -.012em; }
h3 { margin: 32px 0 8px; font-size: 19px; font-weight: 600; line-height: 1.35; }
p, ul, ol { margin: 0 0 16px; }
li { margin-bottom: 6px; }
strong { font-weight: 600; }
p, li { color: var(--label-2); }
p strong, li strong { color: var(--label); }

code, kbd { font-family: var(--mono); font-size: .86em; }
code { padding: 2px 5px; border-radius: 5px; background: var(--fill); color: var(--label); }
kbd {
  display: inline-block;
  min-width: 1.6em;
  padding: 1px 6px;
  border-radius: 5px;
  background: var(--bg-elevated);
  box-shadow: inset 0 -1px 0 rgba(0, 0, 0, .5), 0 0 0 1px var(--separator);
  color: var(--label);
  text-align: center;
}

.steps { padding: 0; list-style: none; counter-reset: step; }
.steps > li { position: relative; margin-bottom: 14px; padding-left: 40px; counter-increment: step; }
.steps > li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 2px;
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--fill);
  color: var(--label);
  font-size: 13px;
  font-weight: 600;
}

figure { margin: 32px 0; }
figure img { display: block; border-radius: var(--radius); box-shadow: 0 0 0 1px var(--separator); }
figcaption { margin-top: 10px; color: var(--label-3); font-size: 14px; }
.pair { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.pair figure { margin: 0; }

.note { padding: 14px 16px; border-left: 3px solid var(--accent); border-radius: 0 8px 8px 0; background: var(--bg-raised); font-size: 15px; }

.table-wrap { overflow-x: auto; margin: 24px 0; border-radius: var(--radius); box-shadow: 0 0 0 1px var(--separator); }
table { width: 100%; border-collapse: collapse; font-size: 15px; }
th, td { padding: 12px 16px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--separator); }
thead th { color: var(--label-3); font-size: 13px; font-weight: 600; background: var(--bg-raised); }
tbody th { color: var(--label); font-weight: 600; }
td { color: var(--label-2); }
tbody tr:last-child > * { border-bottom: 0; }

.cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin: 40px 0;
  padding: 24px 28px;
  border-radius: 16px;
  background: var(--bg-raised);
  box-shadow: inset 0 0 0 1px var(--separator);
}
.cta strong { display: block; color: var(--label); font-size: 17px; }
.cta p { margin: 4px 0 0; font-size: 15px; }
.cta .button { height: 40px; padding: 0 20px; font-size: 15px; }

.faq details { border-bottom: 1px solid var(--separator); }
.faq summary { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; padding: 16px 0; color: var(--label); font-weight: 600; cursor: pointer; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; flex-shrink: 0; color: var(--label-2); font-size: 22px; font-weight: 300; line-height: 1; }
.faq details[open] summary::after { content: "−"; }
.faq details > div { padding: 0 0 16px; }
.faq details > div p:last-child { margin-bottom: 0; }

/* Tool pages */
.hero { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); align-items: start; gap: 48px; padding: 16px 0 24px; }
.hero .lede { margin-top: 0; }
.hero figure { margin: 0; }
.hero .actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 16px; margin-top: 24px; }
.hero .actions .button { height: 42px; padding: 0 20px; font-size: 15px; }
.hero .actions span { color: var(--label-3); font-size: 14px; }
main.tool .page-header { padding-bottom: 0; }

.cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin: 24px 0; padding: 0; list-style: none; }
.cards li { margin: 0; padding: 20px; border-radius: var(--radius); background: var(--bg-raised); box-shadow: inset 0 0 0 1px var(--separator); }
.cards h3 { margin: 0 0 6px; font-size: 16px; }
.cards p { margin: 0; font-size: 15px; }

.stores { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin: 24px 0; padding: 0; list-style: none; }
.stores li { margin: 0; }
.stores a {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px;
  border-radius: 14px;
  background: var(--bg-raised);
  box-shadow: inset 0 0 0 1px var(--separator);
  color: var(--label);
}
.stores a:hover { background: var(--bg-elevated); text-decoration: none; }
.stores img { width: 40px; height: 40px; }
.stores strong { display: block; font-size: 15px; }
.stores span { color: var(--label-3); font-size: 13px; }

/* Guides index */
.guide-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; margin: 32px 0; padding: 0; list-style: none; }
.guide-list li { margin: 0; }
.guide-list a { display: block; height: 100%; padding: 22px 24px; border-radius: 14px; background: var(--bg-raised); box-shadow: inset 0 0 0 1px var(--separator); }
.guide-list a:hover { background: var(--bg-elevated); text-decoration: none; }
.guide-list strong { display: block; color: var(--label); font-size: 18px; line-height: 1.35; }
.guide-list span { display: block; margin-top: 6px; color: var(--label-2); font-size: 15px; line-height: 1.5; }

.related { max-width: var(--measure); margin-top: 56px; padding-top: 8px; border-top: 1px solid var(--separator); }
.related h2 { margin-top: 32px; font-size: 20px; }
.related ul { display: grid; gap: 10px; padding: 0; list-style: none; }
.related a { display: block; padding: 14px 16px; border-radius: 10px; background: var(--bg-raised); }
.related a:hover { background: var(--bg-elevated); text-decoration: none; }
.related strong { display: block; color: var(--label); font-size: 16px; }
.related span { color: var(--label-2); font-size: 14px; }

.footer { width: var(--page); margin: 0 auto; padding: 32px 0 48px; border-top: 1px solid var(--separator); font-size: 14px; }
.footer-columns { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.footer h2 { margin: 0 0 10px; color: var(--label); font-size: 14px; letter-spacing: 0; }
.footer ul { margin: 0; padding: 0; list-style: none; }
.footer li { margin-bottom: 6px; }
.footer a { color: var(--label-2); }
.colophon { margin: 32px 0 0; color: var(--label-3); }

@media (max-width: 860px) {
  .hero { grid-template-columns: minmax(0, 1fr); gap: 32px; }
  .cards, .stores { grid-template-columns: minmax(0, 1fr); }
  .guide-list { grid-template-columns: minmax(0, 1fr); }
  .footer-columns { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  :root { --page: calc(100% - 32px); }
  body { font-size: 16px; }
  .nav nav a:not(.button) { display: none; }
  .nav nav a[href="/guides/"] { display: inline; }
  .pair { grid-template-columns: minmax(0, 1fr); }
  .cta { flex-direction: column; align-items: flex-start; }
  .footer-columns { grid-template-columns: minmax(0, 1fr); }
  th, td { padding: 10px 12px; }

  /* Tables become stacked cards on phones, each value labelled with its column. */
  table, tbody, tr, th, td { display: block; }
  thead { display: none; }
  tbody tr { padding: 12px 16px; border-bottom: 1px solid var(--separator); }
  tbody tr:last-child { border-bottom: 0; }
  tbody th, td { padding: 2px 0; border: 0; }
  tbody th { margin-bottom: 4px; }
  td::before { content: attr(data-label) ": "; color: var(--label-3); }
}