html,body{margin:0;padding:0;width:100%;overflow-x:hidden}.page-container{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;max-width:100vw;overflow:hidden;flex-wrap:wrap}.mnemonic-card{position:relative;width:300px;height:450px;background-color:#fff;border:3px solid #aaa;border-radius:15px;box-shadow:4px 4px 15px #00000026;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:20px}.top-left-number,.bottom-right-number{position:absolute;font-size:24px;font-weight:700;color:#222}.top-left-number{top:10px;left:10px}.bottom-right-number{bottom:10px;right:10px}.card-image{width:300px;height:300px;object-fit:contain}.card-word{font-size:28px;font-weight:700;color:#111;margin-top:1px;text-align:center}.skeleton-loader{width:150px;height:150px;background:linear-gradient(90deg,#e0e0e0 25%,#f0f0f0,#e0e0e0 75%);background-size:200% 100%;animation:loading 1.5s infinite;border-radius:10px}@keyframes loading{0%{background-position:200% 0}to{background-position:-200% 0}}.linkClass{font-size:25px}.linkClass a,.linkClass a:visited{color:#00e}