:root {
  --bg: #f7f7f8;
  --card: #ffffff;
  --text: #18181b;
  --muted: #6b7280;
  --line: #e5e7eb;
  --accent: #111827;
  --error: #b91c1c;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1012;
    --card: #17181b;
    --text: #f4f4f5;
    --muted: #9ca3af;
    --line: #2a2c31;
    --accent: #f4f4f5;
    --error: #f87171;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif;
}
main { max-width: 640px; margin: 0 auto; padding: 48px 16px 24px; }
.eyebrow { margin: 0; color: var(--muted); font-size: 13px; text-transform: uppercase; letter-spacing: .06em; }
h1 { margin: 4px 0; font-size: 32px; }
.sub { margin: 0 0 24px; color: var(--muted); }
.card, .entries li {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
}
form { display: grid; gap: 12px; }
label { display: grid; gap: 4px; font-size: 14px; color: var(--muted); }
input, textarea {
  font: inherit;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 8px 10px;
}
button {
  justify-self: start;
  font: inherit;
  background: var(--accent);
  color: var(--bg);
  border: 0;
  border-radius: 6px;
  padding: 8px 16px;
  cursor: pointer;
}
.error { margin: 0; color: var(--error); }
.entries { list-style: none; padding: 0; margin: 24px 0 0; display: grid; gap: 12px; }
.entries p { margin: 0; white-space: pre-wrap; }
.entries .meta { color: var(--muted); font-size: 13px; margin-bottom: 4px; }
.entries .empty { color: var(--muted); }
footer { text-align: center; color: var(--muted); font-size: 13px; padding: 24px 16px 40px; }