:root {
  color-scheme: light dark;
  --bg: #f6f5f2;
  --card: #ffffff;
  --ink: #1c1a17;
  --muted: #6b6560;
  --line: #e3dfd8;
  --accent: #1f6f4a;
  --bad: #b4341f;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #16171a; --card: #1e2024; --ink: #eceff1; --muted: #9aa2a8; --line: #2c3035; --accent: #5fd39a; --bad: #f08b7a; }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 48px 20px;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.55 ui-sans-serif, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
.card {
  width: 100%;
  max-width: 620px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 28px 28px 20px;
  box-shadow: 0 1px 2px rgba(0,0,0,.04), 0 12px 32px -24px rgba(0,0,0,.35);
}
h1 { margin: 0 0 6px; font-size: 26px; letter-spacing: -.02em; }
.lede { margin: 0 0 20px; color: var(--muted); font-size: 14.5px; }
.status { display: flex; align-items: center; gap: 8px; margin: 0 0 18px; font-size: 13.5px; color: var(--muted); }
.dot { width: 9px; height: 9px; border-radius: 50%; background: var(--muted); flex: none; }
.dot.ok { background: var(--accent); }
.dot.bad { background: var(--bad); }
form { display: flex; gap: 10px; margin-bottom: 18px; }
input {
  flex: 1; min-width: 0; padding: 11px 13px; font: inherit; font-size: 15px;
  color: var(--ink); background: transparent;
  border: 1px solid var(--line); border-radius: 10px;
}
input:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: transparent; }
button {
  padding: 11px 18px; font: inherit; font-size: 15px; font-weight: 600;
  color: #fff; background: var(--accent); border: 0; border-radius: 10px; cursor: pointer;
}
button:disabled { opacity: .55; cursor: progress; }
.error { margin: 0 0 14px; color: var(--bad); font-size: 14px; }
.notes { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.notes li { padding: 14px 2px; border-bottom: 1px solid var(--line); }
.notes p { margin: 0 0 4px; overflow-wrap: anywhere; }
.notes time { color: var(--muted); font-size: 12.5px; }
.empty { color: var(--muted); font-size: 14px; margin: 18px 0; }
footer { margin-top: 18px; color: var(--muted); font-size: 12.5px; }
code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }