.culture-lesson{max-width:1120px;margin:auto;background:#fff9edee;border-radius:30px;padding:clamp(16px,3vw,32px);box-shadow:0 14px 45px #235c6b20}.culture-lesson>h2{text-align:center;font-size:clamp(24px,4vw,38px);margin:12px}.culture-layout{display:grid;grid-template-columns:1.15fr 1fr;align-items:center;gap:28px}.culture-layout figure{margin:0}.culture-layout figure img{width:100%;height:auto;aspect-ratio:1;object-fit:contain;border-radius:24px;box-shadow:0 10px 24px #155f691c}.culture-details{text-align:center}.culture-details>p{font-size:clamp(18px,2.2vw,24px);line-height:1.9}.culture-country{display:inline-block;padding:10px 26px;background:linear-gradient(135deg,#18b8ad,#087e80);border-radius:18px;color:white;font-size:26px;font-weight:bold}.culture-controls{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-top:24px}.culture-options{display:grid;grid-template-columns:1fr 1fr;gap:12px}.culture-options button{min-height:65px}.culture-options .correct{background:#b7eccb}.culture-options .incorrect{background:#ffd4d9}.culture-index{margin-top:24px}.culture-index summary{cursor:pointer;font-weight:bold;font-size:20px}.culture-index>div{display:flex;gap:14px;justify-content:center;margin-top:14px}.culture-index button{border:2px solid transparent;background:#fff4d9;border-radius:18px;padding:8px;flex:1;max-width:160px;color:#155f69;font:inherit;cursor:pointer}.culture-index button[aria-current=true]{border-color:#0baf9e;box-shadow:0 4px 15px #13bba333}.culture-index img{display:block;width:100%;aspect-ratio:1;object-fit:cover;border-radius:12px}.culture-index span{display:block;margin-top:5px}@media(max-width:700px){.culture-layout{grid-template-columns:1fr;gap:16px}.culture-layout figure{max-width:420px;margin:auto}.culture-index>div{gap:6px}.culture-index button{padding:5px;font-size:14px}.culture-controls button{padding:12px;font-size:15px}.culture-options button{font-size:18px}.culture-details>p{margin:10px 0}}