/* Sans Doute Studio — one small stylesheet, system fonts only, no external assets. */
:root {
  --fg: #1b1b1f;
  --muted: #4a4a55;
  --bg: #fbfaf7;
  --accent: #1f4e8c;
  --rule: #d9d6cf;
  --note-bg: #f1eee6;
}
@media (prefers-color-scheme: dark) {
  :root {
    --fg: #ecebe8;
    --muted: #b9b8c2;
    --bg: #16161a;
    --accent: #9cc2ff;
    --rule: #3a3a42;
    --note-bg: #22222a;
  }
}
* { box-sizing: border-box; }
html { font-size: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
}
.skip-link {
  position: absolute; left: -999px; top: 0;
  background: var(--fg); color: var(--bg); padding: .5rem 1rem;
}
.skip-link:focus { left: 0; }
header, main, footer { max-width: 42rem; margin: 0 auto; padding: 0 1.25rem; }
header { padding-top: 1.5rem; border-bottom: 1px solid var(--rule); }
.brand { font-weight: 700; font-size: 1.15rem; color: var(--fg); text-decoration: none; }
.tagline { font-style: italic; color: var(--muted); margin: .1rem 0 .75rem; }
nav ul { list-style: none; padding: 0; margin: 0 0 .75rem; display: flex; flex-wrap: wrap; gap: .25rem 1rem; }
nav a { color: var(--accent); }
nav a[aria-current="page"] { color: var(--fg); font-weight: 600; text-decoration: none; }
main { padding-top: 1rem; padding-bottom: 2rem; }
h1 { font-size: 1.75rem; line-height: 1.25; margin: 1rem 0 .75rem; }
h2 { font-size: 1.25rem; margin: 1.75rem 0 .5rem; }
h3 { font-size: 1.05rem; margin: 1.25rem 0 .25rem; }
a { color: var(--accent); }
a:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
.note { background: var(--note-bg); border-left: 4px solid var(--accent); padding: .75rem 1rem; margin: 1rem 0; }
.status { display: inline-block; font-size: .85rem; font-weight: 600; border: 1px solid var(--muted); border-radius: .25rem; padding: 0 .4rem; color: var(--muted); }
.product { border-top: 1px solid var(--rule); padding-top: .25rem; }
.small { font-size: .9rem; color: var(--muted); }
footer { border-top: 1px solid var(--rule); padding-top: 1rem; padding-bottom: 2rem; font-size: .9rem; color: var(--muted); }
footer ul { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: .25rem 1rem; }