:root { --max: 1100px; --pad: 1rem; }
* { box-sizing: border-box; }
body { margin: 0; font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif; line-height: 1.6; color: #111; }
a { color: inherit; text-decoration: none; }
.site-header { display: flex; justify-content: space-between; align-items: center; padding: 1rem var(--pad); border-bottom: 1px solid #eee; position: sticky; top: 0; background: #fff; z-index: 10; }
.logo { font-weight: 800; letter-spacing: 0.3px; }
.site-nav a { margin-left: 1rem; }
.site-nav .cta { border: 1px solid #111; padding: 0.4rem 0.7rem; border-radius: 6px; }
.content { max-width: var(--max); margin: 0 auto; padding: 1rem var(--pad) 3rem; }
.hero { display: grid; gap: 1rem; grid-template-columns: 1.2fr 1fr; align-items: center; }
.hero-figure img { width: 100%; height: auto; border-radius: 12px; }
.btn { display: inline-block; padding: 0.7rem 1rem; border: 1px solid #111; border-radius: 10px; font-weight: 600; }
.btn.secondary { background: #f7f7f7; }
.actions .btn { margin-right: 0.6rem; }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.card { border: 1px solid #eee; border-radius: 10px; padding: 1rem; background: #fff; }
.cta-section { margin-top: 2rem; border-top: 1px solid #eee; padding-top: 1.5rem; }
.newsletter, .contact { display: grid; gap: 0.6rem; max-width: 520px; }
.newsletter input, .contact input, .contact textarea { padding: 0.6rem 0.7rem; border: 1px solid #ccc; border-radius: 8px; }
.newsletter button, .contact button { padding: 0.7rem 1rem; border: none; border-radius: 8px; background: #111; color: #fff; font-weight: 600; }
.hint { font-size: 0.9rem; color: #666; }
.site-footer { border-top: 1px solid #eee; padding: 2rem var(--pad); }
.site-footer .cols { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 1rem; max-width: var(--max); margin: 0 auto 1rem; }
.tiny { font-size: 0.85rem; color: #555; text-align: center; }
.quiz-controls { display: flex; gap: 0.6rem; align-items: center; margin-bottom: 1rem; }
.quiz-area { border: 1px solid #eee; border-radius: 10px; padding: 1rem; min-height: 120px; }
.quiz-question { font-weight: 600; }
.quiz-choices { display: grid; gap: 0.5rem; margin-top: 0.8rem; }
.choice { border: 1px solid #ddd; padding: 0.6rem; border-radius: 8px; cursor: pointer; }
.choice[aria-pressed="true"] { outline: 3px solid #111; }
.quiz-actions { margin-top: 1rem; display: flex; gap: 0.6rem; }
.result { margin-top: 0.8rem; padding: 0.6rem; border-radius: 8px; background: #f8f8f8; }
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; }
  .grid3 { grid-template-columns: 1fr; }
  .site-footer .cols { grid-template-columns: 1fr; }
}