/* Tech Brief: white page, one column, serif headings. The editions themselves carry inline styles (render.py), so the email and
   the page look the same; this file styles everything around them. */
:root {
  --ink: #1a1a1a;
  --muted: #6b6b6b;
  --line: #dddddd;
  --shade: #f4f2ee;
  --serif: Georgia, 'Times New Roman', serif;
  --sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  color-scheme: light;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: #ffffff; color: var(--ink); font: 16px/1.6 var(--sans); }
a { color: var(--ink); }
.wrap { max-width: 640px; margin: 0 auto; padding: 0 20px; }

.site-head { border-bottom: 2px solid var(--ink); padding: 26px 0 14px; display: flex; align-items: baseline; justify-content: space-between; gap: 8px 20px; flex-wrap: wrap; }
.brand { font: 600 26px/1.2 var(--serif); text-decoration: none; }
.site-head nav { display: flex; gap: 18px; flex-wrap: wrap; font-size: 14px; }
.site-head nav a { color: var(--muted); text-decoration: none; }
.site-head nav a:hover, .site-head nav a[aria-current="page"] { color: var(--ink); }
.site-head nav a.sub { color: var(--ink); font-weight: 600; }

.kicker { margin: 28px 0 6px; font-size: 13px; color: var(--muted); }
h1 { margin: 0; font: 600 30px/1.2 var(--serif); }
.lead { margin: 10px 0 0; color: var(--muted); }
h2 { font: 600 20px/1.3 var(--serif); }

.pager { display: flex; justify-content: space-between; gap: 16px; margin: 40px 0 0; padding: 14px 0 0; border-top: 1px solid var(--line); font-size: 14px; }
.pager a { color: var(--muted); text-decoration: none; }
.pager a:hover { color: var(--ink); }

.cta { background: var(--shade); border-radius: 6px; padding: 20px 22px 18px; margin: 40px 0 0; }
.cta h2 { margin: 0 0 4px; }
.cta p { margin: 0 0 14px; color: var(--muted); font-size: 15px; }

form.sub .row { display: flex; gap: 8px; flex-wrap: wrap; }
form.sub input[type=email] { flex: 1 1 220px; min-width: 0; font: 16px var(--sans); padding: 10px 12px; border: 1px solid #b9b5ad; border-radius: 6px; background: #fff; color: var(--ink); }
form.sub input[type=email]:focus { outline: 2px solid var(--ink); outline-offset: 1px; }
button, .button { font: 600 15px var(--sans); padding: 10px 18px; border: 0; border-radius: 6px; background: var(--ink); color: #fff; cursor: pointer; text-decoration: none; display: inline-block; }
button:disabled { opacity: .55; cursor: default; }
.choices { display: flex; gap: 6px 18px; flex-wrap: wrap; margin: 0 0 14px; font-size: 15px; }
.choices label { display: flex; align-items: center; gap: 6px; cursor: pointer; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.msg { margin: 10px 0 0; font-size: 14px; min-height: 1px; }
.msg.err { color: #a12a1a; }
.msg.ok { color: var(--ink); }

.list { list-style: none; margin: 0; padding: 0; }
.list li { border-top: 1px solid var(--line); }
.list li:first-child { border-top: 0; }
.list a { display: flex; gap: 14px; padding: 10px 0; text-decoration: none; }
.list .d { flex: 0 0 64px; color: var(--muted); font-size: 14px; padding-top: 1px; }
.list a:hover .t { text-decoration: underline; }
.month { margin: 34px 0 6px; padding: 14px 0 0; border-top: 1px solid var(--line); }

.page p { margin: 0 0 14px; }
.page .about { color: var(--muted); font-size: 15px; }

.site-foot { margin: 56px 0 0; padding: 16px 0 44px; border-top: 1px solid var(--line); font-size: 13px; line-height: 1.6; color: var(--muted); }
.site-foot a { color: var(--muted); }

@media (max-width: 480px) {
  h1 { font-size: 26px; }
  .brand { font-size: 23px; }
}