:root {
  color-scheme: dark;
  --bg: #161410;
  --fg: #f3eadc;
  --muted: #a89a86;
  --accent: #d4893a;
  --ok: #7a9a62;
  --bad: #c45c4a;
  --btn: #2a241c;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg);
  color: var(--fg);
  font-family: ui-sans-serif, system-ui, sans-serif;
  line-height: 1.5;
}

#app {
  max-width: 40rem;
  margin: 0 auto;
  padding: 1.25rem;
}

.muted {
  color: var(--muted);
}

h1 {
  font-size: 1.75rem;
  margin: 0 0 0.25rem;
}

h2 {
  font-size: 1.1rem;
  margin: 0 0 0.75rem;
  color: var(--muted);
}

.stack {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

button {
  font: inherit;
  color: inherit;
  border: 1px solid #3a332a;
  background: var(--btn);
  border-radius: 0.6rem;
  padding: 0.75rem 1rem;
  cursor: pointer;
  min-height: 44px;
  width: 100%;
  text-align: left;
}

button:hover {
  border-color: var(--accent);
}

button:active {
  transform: translateY(1px);
}

button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

button.primary {
  background: var(--accent);
  color: #1a1208;
  border-color: var(--accent);
  font-weight: 600;
  text-align: center;
}

button.primary:disabled {
  background: var(--btn);
  color: var(--muted);
  border-color: #3a332a;
  cursor: not-allowed;
}

.source-group {
  display: flex;
  gap: 0.5rem;
}

.source-group button {
  width: auto;
  flex: 1;
  text-align: center;
}

.source-group button.is-selected {
  outline: 2px solid var(--accent);
  border-color: var(--accent);
}

.card {
  background: #1d1a14;
  border: 1px solid #322b21;
  border-radius: 0.75rem;
  padding: 1rem;
}

.chip {
  display: inline-block;
  font-size: 0.8rem;
  color: var(--muted);
  border: 1px solid #3a332a;
  border-radius: 999px;
  padding: 0.15rem 0.65rem;
  margin-bottom: 0.75rem;
}

.progress-count {
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 0.5rem;
}

.stem {
  font-family: Georgia, ui-serif, serif;
  font-size: 1.2rem;
  margin: 0 0 1rem;
}

.choices {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-bottom: 1rem;
}

.choice {
  min-height: 44px;
  width: 100%;
}

.choice.is-selected {
  outline: 2px solid var(--accent);
}

.choice.is-correct {
  background: var(--ok);
  color: #111;
  border-color: var(--ok);
}

.choice.is-wrong {
  background: var(--bad);
  color: #111;
  border-color: var(--bad);
}

.explanation {
  border-top: 1px solid #322b21;
  padding-top: 0.75rem;
  margin-top: 0.5rem;
  color: var(--fg);
}

.footer-link {
  margin-top: 2rem;
  text-align: center;
}

.footer-link button {
  width: auto;
  background: none;
  border: none;
  color: var(--muted);
  text-decoration: underline;
  min-height: 44px;
  padding: 0.5rem 0.75rem;
}

.miss {
  border-top: 1px solid #322b21;
  padding-top: 0.75rem;
  margin-top: 0.75rem;
}

.miss:first-child {
  border-top: none;
  padding-top: 0;
  margin-top: 0;
}

.miss-stem {
  font-family: Georgia, ui-serif, serif;
  margin: 0 0 0.35rem;
}

.score {
  font-size: 2rem;
  font-weight: 700;
  margin: 0.25rem 0 1rem;
}

.error-box {
  text-align: center;
}

.mt-1 {
  margin-top: 1rem;
}