:root {
  --bg: #ffffff;
  --fg: #1a1a1a;
  --muted: #6b7280;
  --accent: #2563eb;
  --border: #e5e7eb;
  --danger: #dc2626;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111418;
    --fg: #e7e9ec;
    --muted: #9ca3af;
    --accent: #60a5fa;
    --border: #2a2f36;
    --danger: #f87171;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
}
nav {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 1.5rem;
  border-bottom: 1px solid var(--border);
}
nav .spacer { flex: 1; }
nav a { color: var(--fg); text-decoration: none; font-weight: 500; }
nav a:hover { color: var(--accent); }
nav .muted { color: var(--muted); font-size: 0.9rem; }
main { max-width: 42rem; margin: 2rem auto; padding: 0 1.5rem; }
h1 { font-size: 1.5rem; }
a { color: var(--accent); }
button {
  font: inherit;
  padding: 0.4rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
}
button.subtle { background: transparent; color: var(--muted); }
button.subtle:hover { color: var(--danger); border-color: var(--danger); }
form.inline { display: inline; }
textarea, input[type="text"] {
  font: inherit;
  width: 100%;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--fg);
}
ul.plain { list-style: none; padding: 0; }
ul.plain li {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--border);
}
ul.plain li .body { flex: 1; white-space: pre-wrap; overflow-wrap: anywhere; }
ul.plain li time { color: var(--muted); font-size: 0.8rem; white-space: nowrap; }
.note-form { display: grid; gap: 0.5rem; margin-bottom: 1.5rem; }
.note-form button { justify-self: start; }
.cowsay-form { display: grid; gap: 0.5rem; margin-bottom: 1.5rem; }
.cowsay-form select { font: inherit; padding: 0.4rem 0.6rem; border: 1px solid var(--border); border-radius: 6px; background: var(--bg); color: var(--fg); justify-self: start; }
.cowsay-form button { justify-self: start; }
.cowsay-scroll {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 6px;
  margin: 1rem 0;
}
#cowsay-output {
  margin: 0;
  padding: 1rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.85rem;
  line-height: 1.3;
  white-space: pre;
}