/* RunSketch website: one small stylesheet, system fonts only (no third-party requests). */
:root {
  --ink: #15171A;
  --muted: #50565F;
  --paper: #F4F5F0;
  --card: #FFFFFF;
  --line: #DADDD4;
  --marker: #FF4D1A;
  --marker-ink: #B83210;
}
@media (prefers-color-scheme: dark) {
  :root {
    --ink: #F4F5F0;
    --muted: #A9AEB5;
    --paper: #15171A;
    --card: #1D2024;
    --line: #2E3238;
    --marker-ink: #FF7A52;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
main { max-width: 720px; margin: 0 auto; padding: 32px 20px 64px; }
header.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 20px; }
header.brand svg { flex: none; }
nav.lang { margin-top: 8px; font-size: 15px; color: var(--muted); }
h1 { font-size: clamp(32px, 7vw, 44px); line-height: 1.1; letter-spacing: -0.02em; margin: 28px 0 8px; }
h2 { font-size: 22px; line-height: 1.25; margin: 40px 0 8px; }
h3 { font-size: 18px; margin: 24px 0 4px; }
p, li { color: var(--ink); }
.muted { color: var(--muted); }
a { color: var(--marker-ink); text-underline-offset: 3px; }
ul { padding-left: 22px; }
li { margin: 6px 0; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 16px 20px;
  margin: 20px 0;
}
.card p { margin: 6px 0; }
footer { margin-top: 56px; padding-top: 20px; border-top: 1px solid var(--line); font-size: 15px; color: var(--muted); }