:root {
  --bg: #fbfbfa;
  --fg: #1a1a18;
  --muted: #6b6b66;
  --line: #e2e2dd;
  --accent: #2d5f4f;
  --error: #a33;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #161614;
    --fg: #ececea;
    --muted: #918f89;
    --line: #2e2c28;
    --accent: #7fbfa6;
    --error: #e08a8a;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 2rem 1rem 3rem;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.6 ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
}

main { max-width: 34rem; margin: 0 auto; }

h1 { margin: 0; font-size: 1.6rem; letter-spacing: -0.01em; }
.sub { margin: 0.25rem 0 2rem; color: var(--muted); }

form { display: grid; gap: 0.6rem; margin-bottom: 2.5rem; }

input, textarea {
  width: 100%;
  padding: 0.6rem 0.7rem;
  font: inherit;
  color: var(--fg);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 6px;
  resize: vertical;
}

input:focus, textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
  border-color: transparent;
}

button {
  justify-self: start;
  padding: 0.55rem 1.4rem;
  font: inherit;
  font-weight: 500;
  color: var(--bg);
  background: var(--accent);
  border: 0;
  border-radius: 6px;
  cursor: pointer;
}

button:hover { opacity: 0.9; }

.error {
  padding: 0.6rem 0.8rem;
  color: var(--error);
  border: 1px solid currentColor;
  border-radius: 6px;
}

.entries article {
  padding: 0.9rem 0;
  border-top: 1px solid var(--line);
}

.meta {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.meta strong { color: var(--fg); }

.entries p { margin: 0.35rem 0 0; overflow-wrap: anywhere; }
.empty { color: var(--muted); }

footer {
  max-width: 34rem;
  margin: 3rem auto 0;
  color: var(--muted);
  font-size: 0.8rem;
  text-align: center;
}