:root {
  color-scheme: light;
  --ink: #1a2744;
  --ink-soft: #4a5d78;
  --paper: #eef3f8;
  --paper-deep: #dde6f0;
  --accent: #2d6a4f;
  --accent-dark: #1b4332;
  --success: #1f7a4c;
  --danger: #a33b2a;
  --surface: #ffffff;
  --line: rgba(26, 39, 68, 0.14);
  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Nunito", "Trebuchet MS", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  color: var(--ink);
  background:
    radial-gradient(ellipse 70% 50% at 10% 0%, rgba(45, 106, 79, 0.14), transparent 55%),
    radial-gradient(ellipse 60% 45% at 90% 20%, rgba(26, 39, 68, 0.08), transparent 50%),
    linear-gradient(180deg, var(--paper) 0%, var(--paper-deep) 100%);
}

.shell {
  max-width: 42rem;
  margin: 0 auto;
  padding: 2.25rem 1.35rem 3.5rem;
}

.intro {
  margin-bottom: 1.75rem;
  animation: rise-in 0.7s ease-out both;
}

.eyebrow {
  margin: 0 0 0.4rem;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 7vw, 3.4rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.05;
}

.meta {
  margin: 0.55rem 0 0;
  font-weight: 600;
  color: var(--accent-dark);
}

.lede {
  margin: 0.85rem 0 0;
  color: var(--ink-soft);
  line-height: 1.5;
}

.quiz-form {
  display: grid;
  gap: 1.25rem;
  animation: rise-in 0.75s ease-out 0.1s both;
}

.question,
.bonus {
  padding: 1.25rem 1.35rem;
  border: 1px solid var(--line);
  border-radius: 1.15rem;
  background: var(--surface);
  box-shadow: 0 14px 36px rgba(26, 39, 68, 0.07);
}

.question h2,
.bonus h2 {
  margin: 0 0 0.65rem;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
}

.prompt {
  margin: 0 0 1rem;
  line-height: 1.45;
}

.choices {
  display: grid;
  gap: 0.55rem;
}

.choice {
  display: flex;
  gap: 0.7rem;
  align-items: flex-start;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 0.85rem;
  cursor: pointer;
  transition: border-color 160ms ease, background 160ms ease;
}

.choice:hover,
.choice:focus-within {
  border-color: rgba(45, 106, 79, 0.45);
  background: rgba(45, 106, 79, 0.07);
}

.choice input {
  margin-top: 0.2rem;
  accent-color: var(--accent);
}

.bonus-label {
  display: block;
  margin-bottom: 0.4rem;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--ink-soft);
}

#bonus-answer {
  width: 100%;
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  font: inherit;
  color: var(--ink);
  background: #fff;
}

#bonus-answer:focus-visible {
  outline: 3px solid rgba(45, 106, 79, 0.45);
  outline-offset: 2px;
}

.actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

button {
  border: 0;
  border-radius: 999px;
  padding: 0.85rem 1.4rem;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  background: var(--accent);
  color: #fff;
  transition: transform 160ms ease, background 160ms ease;
}

button:hover,
button:focus-visible {
  background: var(--accent-dark);
  transform: translateY(-1px);
  outline: none;
}

button:focus-visible {
  outline: 3px solid var(--ink);
  outline-offset: 3px;
}

button.secondary {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
}

button.secondary:hover,
button.secondary:focus-visible {
  background: rgba(26, 39, 68, 0.05);
}

.status,
.results {
  margin-top: 1.25rem;
  padding: 1.15rem 1.25rem;
  border-radius: 1rem;
  border: 1px solid var(--line);
  background: var(--surface);
  line-height: 1.5;
}

.results h2 {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: 1.5rem;
}

.score-line {
  margin: 0 0 0.85rem;
  font-size: 1.15rem;
  font-weight: 700;
}

.result-list {
  margin: 0;
  padding-left: 1.15rem;
}

.result-list li {
  margin: 0.35rem 0;
}

.result-list .ok {
  color: var(--success);
}

.result-list .miss {
  color: var(--danger);
}

.results .actions {
  margin-top: 1.1rem;
}

@media (max-width: 480px) {
  .shell {
    padding: 1.5rem 1rem 2.75rem;
  }

  .question,
  .bonus {
    padding: 1.05rem 1.05rem;
  }
}

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(0.85rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .intro,
  .quiz-form,
  button {
    animation: none !important;
    transition: none !important;
  }
}