/* dynamicradiosystems.com: the public site. Plain, readable, no scripts. */
:root {
  --bg: #f4f3f1; --ink: #1d1c1a; --muted: #5d5a55; --rule: #d8d5d0;
  --accent: #c2510a; --card: #fff;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #161513; --ink: #ece9e4; --muted: #a9a49c; --rule: #34312d;
          --accent: #f08a3e; --card: #1e1d1a; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink);
  font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
a { color: var(--accent); }
header, main, footer { max-width: 760px; margin: 0 auto; padding: 0 20px; }
header { display: flex; align-items: center; gap: 12px; padding-top: 22px; padding-bottom: 22px;
  border-bottom: 1px solid var(--rule); }
.mark { width: 18px; height: 18px; background: var(--accent); flex: none; }
.brand { font-weight: 700; letter-spacing: .08em; text-transform: uppercase; font-size: 16px;
  color: var(--ink); text-decoration: none; }
nav { margin-left: auto; display: flex; gap: 18px; font-size: 15px; }
nav a { color: var(--muted); text-decoration: none; }
nav a:hover, nav a[aria-current] { color: var(--ink); }
main { padding-top: 28px; padding-bottom: 48px; }
h1 { font-size: 30px; line-height: 1.2; margin: 0 0 6px; }
h2 { font-size: 21px; margin: 36px 0 8px; padding-top: 14px; border-top: 1px solid var(--rule); }
h3 { font-size: 17px; margin: 22px 0 6px; }
.meta { color: var(--muted); font-size: 15px; margin: 0 0 24px; }
.lead { font-size: 19px; }
.box { background: var(--card); border: 1px solid var(--rule); border-left: 4px solid var(--accent);
  padding: 14px 18px; margin: 20px 0; }
.box p:first-child { margin-top: 0; } .box p:last-child { margin-bottom: 0; }
ul { padding-left: 22px; }
li { margin: 4px 0; }
table { border-collapse: collapse; width: 100%; font-size: 15px; margin: 12px 0; }
th, td { text-align: left; vertical-align: top; padding: 8px 10px; border: 1px solid var(--rule); }
th { background: var(--card); }
footer { border-top: 1px solid var(--rule); padding-top: 18px; padding-bottom: 36px;
  color: var(--muted); font-size: 14px; display: flex; flex-wrap: wrap; gap: 8px 18px; }
footer a { color: var(--muted); }
@media (max-width: 560px) {
  header { flex-wrap: wrap; } nav { margin-left: 0; width: 100%; }
  h1 { font-size: 26px; }
  table, tbody, tr, th, td { display: block; } thead { display: none; }
  td { border-top: 0; } tr { border-top: 1px solid var(--rule); margin-bottom: 8px; }
}