:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media(prefers-color-scheme:light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}:root{font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif}body{margin:0;background:#0b0f19;color:#e7eaf0}.page{max-width:1100px;margin:0 auto;padding:28px 18px 48px}.topbar{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:18px}.topbar h1{font-size:22px;margin:0;font-weight:700}.hint{opacity:.7;font-size:14px}.status{padding:10px 12px;border-radius:10px;background:#ffffff0f;margin:12px 0 18px}.status.error{background:#ff50501f;border:1px solid rgba(255,80,80,.25)}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px}.flipCard{perspective:1000px;height:180px}.flipInner{position:relative;width:100%;height:100%;transform-style:preserve-3d;-webkit-transform-style:preserve-3d;transition:transform .5s ease;border-radius:18px}.flipCard:hover .flipInner{transform:rotateY(180deg)}.flipFace{position:absolute;inset:0;border-radius:18px;backface-visibility:hidden;-webkit-backface-visibility:hidden;transform-style:preserve-3d;-webkit-transform-style:preserve-3d;display:grid;place-items:center;padding:16px;box-shadow:0 10px 30px #00000040;border:1px solid rgba(255,255,255,.1);overflow:hidden}.flipFront{background:#ffffff0f;transform:rotateY(0) translateZ(.5px)}.flipBack{background:#ffffff1a;transform:rotateY(180deg) translateZ(.5px)}.flipText{text-align:center;line-height:1.25;font-size:16px;font-weight:600;backface-visibility:hidden;-webkit-backface-visibility:hidden;transform:translateZ(1px)}.flipFront{z-index:2}.flipBack,.flipCard:hover .flipFront{z-index:1}.flipCard:hover .flipBack{z-index:2}