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#00000059}}.btn{cursor:pointer;border:1px solid #0000;border-radius:999px;padding:.6rem 1.4rem;font-size:.9rem;font-weight:500;transition:transform 80ms ease-out,box-shadow .18s ease-out,background-color .15s,color .15s,border-color .15s}.btn:active{transform:scale(.98)}.btn-dont-know{color:#c53030;background:#fff5f5;border-color:#fed7d7}.btn-dont-know:hover{box-shadow:0 4px 10px #f5656540}.btn-know{background:var(--accent);color:#fff}.btn-know:hover{background:var(--accent-hover);box-shadow:0 4px 16px #6d28d973}@media (prefers-color-scheme:dark){.flashcard-front{color:#e2e8f0;background:radial-gradient(120% 100% at 0 0,#facc1559 0%,#0000 48%),radial-gradient(90% 80% at 100% 0,#c084fc73 0%,#0000 50%),radial-gradient(100% 90% at 50% 100%,#22d3ee33 0%,#0000 45%),linear-gradient(155deg,#1e1033 0%,#4c1d95 38%,#1e3a5f 100%);border-color:#c084fc8c;box-shadow:0 14px 48px #00000080,0 0 40px #a855f726,inset 0 0 0 1px #ffffff14}.flashcard-back{background:radial-gradient(100% 80% at 100% 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