:root {
  color-scheme: light;
  --bg: #f4f7fb;
  --panel: #ffffff;
  --text: #132238;
  --muted: #607089;
  --border: #dce4ee;
  --accent: #2563eb;
  --accent-soft: #e8f0ff;
  --good: #0f766e;
  --bad: #b91c1c;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.hero {
  background: linear-gradient(135deg, #0f172a, #1d4ed8);
  color: white;
  padding: 3rem 1.5rem;
}

.container {
  max-width: 980px;
  margin: 0 auto;
  padding: 1.5rem;
  display: grid;
  gap: 1rem;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.2rem;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.06);
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.75rem;
  opacity: 0.85;
  margin-bottom: 0.5rem;
}

.subtitle {
  max-width: 720px;
  line-height: 1.6;
  margin: 0.5rem 0 0;
  color: rgba(255, 255, 255, 0.9);
}

.controls {
  display: grid;
  gap: 1rem;
}

.control-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

.control-row.compact {
  align-items: end;
}

button,
select,
input {
  font: inherit;
  padding: 0.7rem 0.9rem;
  border-radius: 10px;
  border: 1px solid var(--border);
}

button {
  cursor: pointer;
  background: white;
}

button.primary {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

button:hover {
  transform: translateY(-1px);
}

button.secondary {
  background: var(--accent-soft);
  color: var(--accent);
  border-color: #bfdbfe;
}

.actions {
  flex-wrap: wrap;
}

.question-card {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1rem;
  margin-bottom: 1rem;
  background: #fbfdff;
}

.question-card h3 {
  font-size: 1rem;
  margin: 0 0 0.75rem;
}

.option {
  display: block;
  padding: 0.8rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 0.6rem;
  cursor: pointer;
}

.option input {
  margin-right: 0.75rem;
}

.option.correct {
  border-color: var(--good);
  background: #ecfdf5;
}

.option.incorrect {
  border-color: var(--bad);
  background: #fef2f2;
}

.result-summary {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.badge {
  background: var(--accent-soft);
  color: var(--accent);
  padding: 0.4rem 0.7rem;
  border-radius: 999px;
  font-weight: 600;
}

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

@media print {
  body {
    background: white;
  }

  .hero,
  .controls,
  .status,
  button {
    display: none !important;
  }

  .container {
    max-width: none;
    padding: 0;
  }

  .panel {
    box-shadow: none;
    border: none;
    padding: 0;
  }
}

@media (max-width: 700px) {
  .hero {
    padding: 2rem 1rem;
  }

  .container {
    padding: 1rem;
  }
}