.tab-btn-row{display:flex;justify-content:center;align-items:center;gap:10px;border-bottom:#161c56 solid 1px;margin-bottom:5px}.tab-btn{margin-top:10px;padding:9px 20px;font-size:.9rem;background-color:#d0d5bf;color:#161c56;border:none;cursor:pointer;border-top-left-radius:10px;border-top-right-radius:10px;text-decoration:none;text-align:center}.tab-active{background-color:#161c56;color:#fff}.about-section{box-sizing:border-box;padding:10px;margin:12px 0;background-color:#ddd;border:1px solid #666;border-radius:15px}.about-video{display:block;width:auto;max-width:100%;max-height:70vh;margin:0 auto;border-radius:10px}.info-box-title{font-size:1.1rem;font-weight:600;margin-bottom:10px}.info-box-content{font-size:1rem;line-height:1.5;margin-top:10px}.about-section-title{font-size:1.3rem;font-weight:600;margin-bottom:10px}.tile-examples{display:block;width:100%;justify-content:space-between;margin-top:5px;margin-bottom:5px}.step-examples{display:block;width:90%;max-width:512px;justify-content:space-between;border-radius:5px;margin:5px auto}.video{width:100%;height:auto;aspect-ratio:16 / 9;margin:10px 0}