:root {
  color-scheme: light;
  --paper: #f7f4ef;
  --ink: #1c1915;
  --muted: #5e584f;
  --line: #d9d1c5;
  --blue: #1c4f73;
  --white: #fff;
  --wrong: #8f3d32;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  background: var(--paper);
  color: var(--ink);
  font-family: system-ui, -apple-system, "Hiragino Sans", "BIZ UDPGothic", sans-serif;
}

body {
  padding: 28px 18px 40px;
}

.screen {
  width: min(100%, 28rem);
  margin: 0 auto;
}

h1 {
  margin: 8px 0 28px;
  font-family: "Hiragino Mincho ProN", "Yu Mincho", serif;
  font-size: 1.75rem;
  font-weight: 500;
  line-height: 1.3;
}

h2 {
  margin: 0;
  font-family: "Hiragino Mincho ProN", "Yu Mincho", serif;
  font-size: 1.25rem;
  font-weight: 500;
}

.top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.eyebrow {
  margin: 0;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.back { margin: 0 0 8px; padding-left: 0; }

.meta {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 0.82rem;
  font-variant-numeric: tabular-nums;
}

.set {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 16px 14px;
  background: var(--white);
  border-radius: 12px;
}

.home-actions {
  display: grid;
  gap: 4px;
  margin-top: 12px;
}

.home-link {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  color: var(--muted);
  font-size: 0.95rem;
  text-decoration: none;
  white-space: nowrap;
}

.quiet {
  width: 100%;
  background: transparent;
  color: var(--muted);
}

.passage {
  margin: 16px 0 18px;
  font-family: "Hiragino Mincho ProN", "Yu Mincho", serif;
  font-size: 1.12rem;
  line-height: 1.75;
}

.answer-form {
  display: grid;
  gap: 8px;
}

.answer-input,
.primary,
.secondary,
.choice,
.text-button {
  min-height: 48px;
  border-radius: 10px;
  font: inherit;
}

.answer-input {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line);
  background: var(--white);
  color: var(--ink);
  font-size: 1rem;
}

.primary,
.secondary,
.choice,
.text-button {
  border: 0;
  cursor: pointer;
}

.primary {
  width: 100%;
  background: var(--blue);
  color: var(--white);
}

.secondary,
.choice {
  width: 100%;
  margin-top: 8px;
  background: var(--white);
  color: var(--blue);
  border: 1px solid var(--blue);
}

.choices {
  display: grid;
  gap: 8px;
  margin-top: 8px;
}

.choice { margin-top: 0; }

.text-button {
  flex: 0 0 auto;
  padding: 0 4px;
  background: transparent;
  color: var(--blue);
}

.text-button.quiet { color: var(--muted); }

.mark {
  display: inline-block;
  margin: 14px 0 12px;
  padding: 4px 12px;
  border-radius: 999px;
  color: var(--white);
  font-size: 0.82rem;
}

.mark.ok { background: var(--blue); }
.mark.ng { background: var(--wrong); }

.label {
  margin: 0 0 4px;
  color: var(--muted);
  font-size: 0.82rem;
}

.given,
.official,
.person-name,
.got,
.score {
  font-family: "Hiragino Mincho ProN", "Yu Mincho", serif;
}

.given {
  margin: 0 0 12px;
  font-size: 1.15rem;
}

.official {
  margin: 0 0 14px;
  font-size: 1.4rem;
}

.score {
  margin: 14px 0 4px;
  font-size: 2.5rem;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.score span {
  font-size: 1.35rem;
  color: var(--muted);
}

h2 { margin: 18px 0 8px; }

.people { display: grid; gap: 8px; }

.person {
  padding: 10px 12px;
  background: var(--white);
  border-radius: 10px;
}

.person-name { margin: 0; font-size: 1.05rem; }

.person-line {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.5;
}

.study { display: grid; gap: 12px; margin: 18px 0; }

.study-item {
  padding: 14px 12px;
  background: var(--white);
  border-radius: 10px;
}

.study-item .passage { margin: 8px 0 0; font-size: 1.02rem; }

.alias {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.got {
  margin: 0 0 18px;
  font-size: 0.95rem;
  line-height: 1.7;
}

button:focus-visible,
input:focus-visible,
a.home-link:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}