:root {
  --bg: #f4f7f1;
  --card: #ffffff;
  --text: #1d2a1f;
  --muted: #5f6f62;
  --accent: #2f8f46;
  --accent-dark: #23703a;
  --warn-bg: #fff6e0;
  --warn-text: #7a5600;
  --err: #c0392b;
  --border: #dfe7db;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121814;
    --card: #1b231d;
    --text: #e6efe7;
    --muted: #9fb0a3;
    --accent: #4cbb67;
    --accent-dark: #3da457;
    --warn-bg: #3a3218;
    --warn-text: #f3d98b;
    --err: #ff7b6b;
    --border: #2b372e;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.45;
}
.wrap { max-width: 460px; margin: 0 auto; padding: 24px 16px 48px; }
.wrap.wide { max-width: 760px; }
h1 { font-size: 26px; margin: 0 0 4px; }
h2 { font-size: 20px; margin: 0 0 12px; }
p { margin: 0 0 12px; }
.muted { color: var(--muted); font-size: 14px; }
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  margin-top: 16px;
}
.hero { text-align: center; padding-top: 8px; }
.hero .emoji { font-size: 56px; line-height: 1; }
.bonus {
  display: inline-block;
  margin-top: 12px;
  padding: 10px 14px;
  border-radius: 12px;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
}
label { display: block; font-size: 14px; color: var(--muted); margin: 12px 0 4px; }
input, textarea {
  width: 100%;
  font: inherit;
  padding: 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
}
textarea { min-height: 90px; resize: vertical; }
button {
  font: inherit;
  font-weight: 600;
  width: 100%;
  margin-top: 16px;
  padding: 14px;
  border: 0;
  border-radius: 12px;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
}
button:hover { background: var(--accent-dark); }
button:disabled { opacity: .6; cursor: default; }
button.link {
  background: none;
  color: var(--muted);
  font-weight: 400;
  text-decoration: underline;
  padding: 8px;
  margin-top: 8px;
}
.tabs { display: flex; gap: 8px; }
.tabs button { margin: 0; background: var(--bg); color: var(--text); border: 1px solid var(--border); }
.tabs button.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.error { color: var(--err); font-size: 14px; margin-top: 10px; min-height: 1em; }
.ok { color: var(--accent); font-size: 14px; margin-top: 10px; }
.warn { background: var(--warn-bg); color: var(--warn-text); border-radius: 12px; padding: 14px; font-size: 15px; }
.warn ol { margin: 8px 0 0; padding-left: 20px; }
.code {
  font-family: ui-monospace, Menlo, Consolas, monospace;
  font-size: 34px;
  letter-spacing: 3px;
  text-align: center;
  padding: 16px;
  border: 2px dashed var(--accent);
  border-radius: 12px;
  margin: 12px 0;
}
.used { text-decoration: line-through; opacity: .5; }
.hidden { display: none !important; }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 12px; }
.stat { background: var(--bg); border-radius: 12px; padding: 12px; }
.stat b { display: block; font-size: 28px; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 8px 6px; border-bottom: 1px solid var(--border); vertical-align: top; }
.row { display: flex; gap: 8px; }
.row > * { flex: 1; }
.row button { flex: 0 0 auto; width: auto; margin-top: 0; padding: 12px 16px; }