:root {
  color-scheme: light dark;
  --bg: #f4f7f5;
  --card: #ffffff;
  --fg: #14201a;
  --muted: #55655b;
  --ac: #1f6f4a;
  --onac: #ffffff;
  --line: #d3ddd6;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1512;
    --card: #18211c;
    --fg: #e8efe9;
    --muted: #9db0a5;
    --ac: #4fc08a;
    --onac: #06140d;
    --line: #2b3a32;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
main { max-width: 640px; margin: 0 auto; padding: 16px; }
h1 { font-size: 1.5rem; margin: 8px 0 4px; }
h2 { font-size: 1.05rem; margin: 0 0 8px; }
section { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; margin: 12px 0; }
.muted { color: var(--muted); }
.row { display: flex; flex-wrap: wrap; gap: 8px; margin: 8px 0; }
button { min-height: 48px; padding: 10px 16px; border: 0; border-radius: 10px; background: var(--ac); color: var(--onac); font: inherit; font-weight: 600; }
button.secondary { background: transparent; color: var(--fg); border: 1px solid var(--line); }
button:disabled { opacity: 0.45; }
button:focus-visible, input:focus-visible, textarea:focus-visible { outline: 3px solid var(--ac); outline-offset: 2px; }
.state { font-weight: 600; margin: 8px 0 4px; }
.last { margin: 4px 0; word-break: break-word; }
.check { display: flex; align-items: center; gap: 10px; min-height: 44px; }
.check input { width: 22px; height: 22px; }
ul, ol { padding-left: 20px; margin: 6px 0; }
li { margin: 4px 0; }
textarea { width: 100%; font: 12px/1.4 ui-monospace, Menlo, Consolas, monospace; background: var(--bg); color: var(--fg); border: 1px solid var(--line); border-radius: 8px; padding: 8px; }
code { font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 0.92em; }