:root {
  --bg: #F7F7F5;
  --card: #FFFFFF;
  --ink: #111111;
  --muted: #6F6F6F;
  --line: #E7E7E4;
  --lime: #D6FF4A;
  --danger: #B42318;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "Inter Tight", ui-sans-serif, system-ui, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.55;
  font-size: 16px;
}
a { color: inherit; }
:focus-visible { outline: 1px solid var(--lime); outline-offset: 3px; }
.wrap { width: min(720px, calc(100% - 40px)); margin: 0 auto; padding: 48px 0 64px; }
.wordmark {
  font-weight: 600; font-size: 16px; letter-spacing: -0.03em; text-decoration: none;
  display: inline-flex; align-items: center; gap: 8px; margin-bottom: 28px;
}
.wordmark svg { width: 22px; height: 22px; display: block; }
h1 { font-size: clamp(32px, 5vw, 44px); font-weight: 600; letter-spacing: -0.04em; line-height: 1.1; margin: 0 0 8px; }
h2 { font-size: 20px; font-weight: 600; letter-spacing: -0.03em; margin: 28px 0 8px; }
.lead, .muted { color: var(--muted); }
.updated { color: var(--muted); font-size: 13px; margin: 0 0 24px; }
section {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 24px;
  margin-bottom: 16px;
}
label { display: block; font-weight: 600; font-size: 13px; margin: 0 0 6px; }
input {
  width: 100%; border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px;
  font: inherit; background: #fff; margin-bottom: 12px;
}
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  margin-top: 8px; background: #111; color: #fff; text-decoration: none;
  font-weight: 600; padding: 12px 16px; border-radius: 12px; border: 0;
  cursor: pointer; font: inherit;
}
.btn:hover { background: #000; }
.btn[disabled] { opacity: 0.5; cursor: default; }
[hidden] { display: none !important; }
.err { color: var(--danger); min-height: 1.3em; }
.ok { color: #166534; }
footer { color: var(--muted); font-size: 13px; margin-top: 24px; }
footer a { text-decoration: none; }
footer a:hover { color: var(--ink); }
ul, ol { margin: 0; padding-left: 1.2em; }
li { margin: 0 0 8px; }
p { margin: 0 0 12px; }
p:last-child { margin-bottom: 0; }
.code {
  font-family: ui-monospace, Consolas, monospace;
  background: var(--bg);
  border: 1px solid var(--line);
  padding: 2px 6px;
  border-radius: 6px;
}