.qz-page {
  padding: 48px 0 100px;
}

.qz-intro {
  text-align: center;
  max-width: 46ch;
  margin: 0 auto 40px;
}

.qz-intro .hero__eyebrow {
  margin-bottom: 18px;
}

.qz-intro h1 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  letter-spacing: -0.02em;
  margin: 0 0 10px;
}

.qz-intro p {
  color: var(--ink-soft);
  margin: 0;
  line-height: 1.6;
}

.qz-setup {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 22px;
  max-width: 460px;
  margin: 0 auto;
}

.qz-setup-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.qz-setup-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--ink-soft);
}

.qz-chip-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.qz-chip {
  border: 1px solid var(--line);
  background: var(--bg);
  padding: 9px 16px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink-soft);
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease),
    border-color var(--dur-fast) var(--ease);
}

.qz-chip:hover {
  border-color: var(--accent);
}

.qz-chip.is-active {
  background: var(--ink-invert);
  border-color: var(--ink);
  color: #fff;
}

.qz-start-btn {
  justify-content: center;
  margin-top: 4px;
}

.qz-run {
  max-width: 460px;
  margin: 0 auto;
}

.qz-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.qz-progress {
  flex: 1;
  min-width: 160px;
}

.qz-progress span {
  font-size: 0.78rem;
  color: var(--ink-soft);
  font-family: var(--font-mono);
}

.qz-progress-track {
  height: 6px;
  border-radius: 999px;
  background: var(--line);
  overflow: hidden;
  margin-top: 6px;
}

.qz-progress-fill {
  height: 100%;
  width: 0%;
  background: var(--accent);
  transition: width var(--dur-med) var(--ease);
}

.qz-meta {
  display: flex;
  gap: 8px;
}

.qz-meta-pill {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(var(--accent-rgb, 11, 122, 85), 0.1);
  color: var(--accent-ink);
}

.qz-meta-pill--streak {
  background: rgba(255, 200, 87, 0.22);
  color: #8a6300;
}

.qz-card {
  background: var(--ink-invert);
  border-radius: var(--radius-lg);
  padding: 40px 28px;
  text-align: center;
  transition: transform 120ms var(--ease);
}

.qz-card.is-correct {
  animation: qz-correct 380ms var(--ease);
}

.qz-card.is-wrong {
  animation: qz-wrong 380ms var(--ease);
}

@keyframes qz-correct {
  0% { transform: scale(1); }
  40% { transform: scale(1.03); }
  100% { transform: scale(1); }
}

@keyframes qz-wrong {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-8px); }
  75% { transform: translateX(8px); }
}

.qz-question {
  font-family: var(--font-mono);
  font-size: clamp(1.8rem, 6vw, 2.4rem);
  font-weight: 700;
  color: #fff;
  margin-bottom: 24px;
}

.qz-form {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
}

.qz-answer-input {
  width: 140px;
  border: none;
  border-radius: 12px;
  padding: 13px 16px;
  font-family: var(--font-mono);
  font-size: 1.2rem;
  font-weight: 700;
  text-align: center;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

.qz-answer-input::placeholder {
  color: rgba(255, 255, 255, 0.35);
}

.qz-answer-input:focus {
  outline: 2px solid var(--highlight);
  outline-offset: 2px;
  background: rgba(255, 255, 255, 0.16);
}

.qz-choices {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-top: 4px;
}

.qz-choice {
  border: none;
  border-radius: 12px;
  padding: 14px 12px;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease);
}

.qz-choice:hover {
  background: rgba(255, 255, 255, 0.18);
}

.qz-feedback {
  margin-top: 16px;
  min-height: 1.3em;
  font-size: 0.88rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.75);
}

.qz-feedback.is-correct {
  color: #6fe3b4;
}

.qz-feedback.is-wrong {
  color: #ff9a8f;
}

.qz-result {
  max-width: 460px;
  margin: 0 auto;
  text-align: center;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 40px 28px;
}

.qz-result-badge {
  font-size: 2.4rem;
  margin-bottom: 8px;
}

.qz-result h2 {
  font-family: var(--font-display);
  margin: 0 0 24px;
  font-size: 1.4rem;
}

.qz-result-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-bottom: 28px;
}

.qz-stat-box {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 14px 6px;
}

.qz-stat-box b {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.25rem;
  color: var(--accent-ink);
}

.qz-stat-box span {
  font-size: 0.72rem;
  color: var(--ink-soft);
}

.qz-result-actions {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
}

@media (max-width: 520px) {
  .qz-result-stats {
    grid-template-columns: repeat(2, 1fr);
  }
  .qz-setup,
  .qz-result {
    padding: 24px 20px;
  }
}