.session-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,290px),1fr));gap:20px;margin:28px 0}.session-card{display:block;border:1px solid #d6ded9;border-radius:12px;padding:22px;background:#fff;color:inherit;text-decoration:none}.session-card:hover{border-color:#315c49}.session-card h2{font-size:1.35rem}.session-meta{font-weight:600}.session-downloads{border:1px solid #d6ded9;padding:22px;border-radius:12px;margin:25px 0;background:#f6f8f4}.session-download-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,260px),1fr));gap:18px}.session-download-grid .button{display:inline-block;margin:4px 3px 4px 0;white-space:normal}.session-challenge{border-top:1px solid #d6ded9;margin-top:30px;padding-top:16px}.puzzle-grid{border-collapse:collapse;margin:20px 0}.puzzle-grid td{border:1px solid #333;text-align:center;width:48px;height:45px;padding:5px;font-size:1.2rem}.session-hint,.session-answer{border:1px solid #d6ded9;padding:12px 15px;margin:10px 0;border-radius:6px}.session-answer{background:#f5f7f5}.puzzle-session summary{cursor:pointer;font-weight:600}.puzzle-session summary:focus-visible{outline:3px solid #315c49;outline-offset:4px}.session-source{margin-top:35px;font-size:.92rem;color:#46534c}@media(max-width:480px){.session-downloads{padding:16px}.session-card{padding:18px}.puzzle-session h1{overflow-wrap:anywhere}}@media print{header,footer,.session-downloads,.session-source{display:none}.session-challenge{break-inside:avoid}.session-hint,.session-answer{display:none}body{color:#000;background:#fff}}