/* Whyworld "Atlas" — paper, ink, amber. Own brand; independent of srofia styles. */
:root {
  --paper: #F6F1E7; --ink: #1C1B19; --ink-2: #6B665C; --amber: #9A5B0E; --on-amber: #FFFFFF;
  --ocean: #2F4A5A; --rule: #E3DCCD; --card: #FBF8F1;
  --serif: "Source Serif 4", Georgia, "Times New Roman", serif;
  --sans: Inter, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #16140F; --ink: #EDE6D6; --ink-2: #A39C8E; --amber: #E0A04A; --on-amber: #16140F;
    --ocean: #8FB3C4; --rule: #2A2620; --card: #1D1A14;
  }
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 400 1.0625rem/1.6 var(--sans); }
a { color: var(--amber); text-underline-offset: 0.18em; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--amber); outline-offset: 2px; border-radius: 2px; }
.wrap { max-width: 46rem; margin: 0 auto; padding: 0 16px; }
.skip { position: absolute; left: -999px; top: 0; background: var(--ink); color: var(--paper); padding: 8px 12px; }
.skip:focus { left: 8px; z-index: 10; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.top { border-bottom: 1px solid var(--rule); }
.top-in { display: flex; align-items: center; justify-content: space-between; min-height: 56px; }
.wordmark { font: 600 1.375rem/1 var(--serif); color: var(--ink); text-decoration: none; letter-spacing: -0.01em; }
.top nav a { color: var(--ink); font-weight: 600; font-size: 0.9375rem; text-decoration: none; padding: 12px 0; }
.top nav a:hover { color: var(--amber); }

main { padding-top: 20px; padding-bottom: 48px; }
h1, h2, h3 { font-family: var(--serif); font-weight: 600; line-height: 1.2; letter-spacing: -0.01em; text-wrap: balance; }
h1 { font-size: clamp(1.875rem, 6vw, 2.75rem); margin: 0.4em 0 0.3em; }
h2 { font-size: 1.375rem; margin: 0 0 0.5em; }
h3 { font-size: 1.1875rem; margin: 0.1em 0 0.35em; }
.dek { font-size: 1.125rem; color: var(--ink-2); margin: 0 0 0.75em; }
.meta { font-size: 0.875rem; color: var(--ink-2); font-variant-numeric: tabular-nums; margin: 0 0 1.25em; }
.kicker { font-size: 0.8125rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--amber); margin: 1.5em 0 0; }

.crumbs ol { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 4px; font-size: 0.875rem; color: var(--ink-2); }
.crumbs li + li::before { content: "/"; margin-right: 4px; color: var(--rule); }
.crumbs a { color: var(--ink-2); }

.topics { list-style: none; margin: 0; padding: 0; border-top: 2px solid var(--ink); }
.topic { display: grid; grid-template-columns: 2rem 1fr; gap: 12px; padding: 18px 0; border-bottom: 1px solid var(--rule); }
.num { font: 600 1.5rem/1.1 var(--serif); color: var(--amber); font-variant-numeric: tabular-nums; }
.cat { margin: 0; font-size: 0.8125rem; font-weight: 600; color: var(--ocean); letter-spacing: 0.02em; }
.why { margin: 0 0 0.4em; }
.why-k { font-weight: 600; color: var(--amber); margin-right: 4px; }
.src { margin: 0; font-size: 0.875rem; color: var(--ink-2); overflow-wrap: anywhere; }
.src a { color: var(--ink-2); }

.quiet { border-top: 2px solid var(--ink); border-bottom: 1px solid var(--rule); padding: 16px 0; }
.quiet p { margin: 0 0 0.6em; }
.quiet p:last-child { margin: 0; }

.cta { margin: 40px 0; padding: 24px 20px; background: var(--card); border: 1px solid var(--rule); border-radius: 12px; }
.cta p { margin: 0 0 16px; color: var(--ink-2); }
.badges { display: flex; flex-wrap: wrap; gap: 12px; }
.badge { display: inline-flex; flex-direction: column; min-width: 10rem; padding: 10px 16px; border-radius: 10px; background: var(--ink); color: var(--paper); line-height: 1.25; }
.badge-k { font-weight: 600; }
.badge-v { font-size: 0.8125rem; opacity: 0.85; }
.btn { display: inline-block; background: var(--amber); color: var(--on-amber); font-weight: 600; text-decoration: none; padding: 12px 20px; border-radius: 10px; min-height: 44px; }
.btn:hover { text-decoration: none; filter: brightness(1.08); }

.how, .more, .region, .faq, .feats { margin: 36px 0; }
.how p { color: var(--ink-2); }
.grid { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(13rem, 1fr)); gap: 0 20px; }
.grid li { border-bottom: 1px solid var(--rule); }
.grid a { display: block; padding: 12px 0; color: var(--ink); text-decoration: none; }
.grid a:hover { color: var(--amber); }
.region h2 { font-size: 1.125rem; color: var(--ocean); }

.hero { padding: 8px 0 8px; }
.hero h1 { font-size: clamp(2rem, 7vw, 3.25rem); }
.feats { display: grid; grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr)); gap: 0 28px; border-top: 2px solid var(--ink); }
.feat { border-bottom: 1px solid var(--rule); padding: 16px 0; }
.feat h2 { font-size: 1.1875rem; margin-bottom: 0.3em; }
.feat p { margin: 0; color: var(--ink-2); }
.faq details { border-bottom: 1px solid var(--rule); padding: 12px 0; }
.faq summary { cursor: pointer; font-weight: 600; min-height: 24px; }
.faq details p { color: var(--ink-2); margin: 8px 0 0; }

.foot { border-top: 1px solid var(--rule); font-size: 0.875rem; color: var(--ink-2); }
.foot-in { padding-top: 20px; padding-bottom: 32px; }
.foot p { margin: 0 0 6px; }
.foot a { color: var(--ink-2); }

/* Legal pages */
.legal h2 { margin-top: 1.6em; }
.legal ul { padding-left: 1.25em; }
.legal li { margin: 0.25em 0; }
.legal ul ul { margin: 0.25em 0; }
.table-wrap { overflow-x: auto; margin: 1em 0; border-top: 2px solid var(--ink); }
.legal table { border-collapse: collapse; font-size: 0.875rem; min-width: 44rem; }
.legal th, .legal td { text-align: left; vertical-align: top; padding: 10px 12px 10px 0; border-bottom: 1px solid var(--rule); }
.legal th { font-weight: 600; }