:root {
  color-scheme: light dark;
  --fg: #16181d;
  --muted: #6b7280;
  --line: #e5e7eb;
  --accent: #2563eb;
  --bg: #ffffff;
}

@media (prefers-color-scheme: dark) {
  :root {
    --fg: #e8eaed;
    --muted: #9aa0a6;
    --line: #2c2f36;
    --bg: #14161a;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 3rem 1.25rem;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.5 ui-sans-serif, -apple-system, "Segoe UI", Roboto, sans-serif;
}

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

h1 { font-size: 1.6rem; margin: 0 0 .25rem; letter-spacing: -.02em; }
h2 { font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); margin: 0 0 .35rem; }
.lede { color: var(--muted); margin: 0 0 1.5rem; }

form { display: flex; gap: .5rem; margin-bottom: 1.25rem; }

input[type="text"] {
  flex: 1;
  padding: .55rem .7rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: transparent;
  color: inherit;
  font: inherit;
}

button {
  padding: .55rem .9rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  font: inherit;
  cursor: pointer;
}

button.drop {
  background: transparent;
  color: var(--muted);
  border: none;
  font-size: 1.1rem;
  line-height: 1;
  padding: .1rem .35rem;
}

ul { list-style: none; margin: 0; padding: 0; }

li {
  display: flex;
  align-items: center;
  gap: .6rem;
  padding: .5rem 0;
  border-bottom: 1px solid var(--line);
}

li span { flex: 1; }
li span.done { color: var(--muted); text-decoration: line-through; }

.muted { color: var(--muted); font-size: .9rem; }

.identity {
  margin-top: 2.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}