*, *::before, *::after { box-sizing: border-box; }
html { scroll-padding-top: calc(var(--header-height) + 12px); }
body { margin: 0; background: var(--surface); color: var(--ink); font: 15px/1.6 var(--font); overflow-wrap: anywhere; }
h1, h2, h3 { line-height: 1.3; margin: 0; color: var(--ink); }
h1 { font-size: clamp(26px, 4vw, 40px); font-weight: 900; }
h2 { font-size: 20px; font-weight: 700; }
h3 { font-size: 16px; font-weight: 700; }
p { margin: 0; }
a { color: var(--primary); }
a:hover { color: var(--primary-dark); }
img { max-width: 100%; }
button, input, select, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
[hidden] { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.site-header { position: sticky; top: 0; z-index: 900; background: var(--surface); border-bottom: 1px solid var(--line); }
.site-header-inner { max-width: var(--max-width); margin: 0 auto; padding: 8px var(--gutter); display: flex; flex-wrap: wrap; align-items: center; gap: 4px 24px; min-height: var(--header-height); }
.brand { display: inline-flex; align-items: center; min-height: 44px; font-size: 18px; font-weight: 900; color: var(--ink); text-decoration: none; }
.brand em { font-style: normal; color: var(--primary); margin-left: 4px; }
.site-nav { display: flex; flex-wrap: wrap; gap: 0 16px; flex: 1 1 auto; align-items: center; }
.site-nav a { display: inline-flex; align-items: center; min-height: 44px; min-width: 44px; padding: 0 4px; color: var(--ink); text-decoration: none; font-weight: 500; }
.site-nav a[aria-current="page"] { color: var(--primary); font-weight: 700; }
.site-user { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 12px; }
.site-user a:not(.btn) { display: inline-flex; align-items: center; min-height: 44px; min-width: 44px; padding: 0 4px; color: var(--ink); text-decoration: none; font-weight: 500; }

.page { max-width: var(--max-width); margin: 0 auto; padding: 32px var(--gutter) 64px; }
.page-narrow { max-width: 860px; }
.page-lead { margin-top: 8px; color: var(--ink-2); font-size: 16px; }
.site-footer { border-top: 1px solid var(--line); color: var(--ink-2); font-size: 14px; }
.site-footer-inner { max-width: var(--max-width); margin: 0 auto; padding: 20px var(--gutter); display: flex; flex-wrap: wrap; align-items: center; gap: 8px 16px; }
.site-footer a { display: inline-flex; align-items: center; min-height: 44px; }

@media (max-width: 767px) {
  h1 { font-size: 26px; }
  .page { padding-top: 20px; }
  html { scroll-padding-top: 140px; }
  .site-header { position: static; }
}