:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;color:#ffffffde;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:#242424;font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;font-weight:400;line-height:1.5}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial}}a{color:#646cff;-webkit-text-decoration:inherit;text-decoration:inherit;font-weight:500}a:hover{color:#535bf2}body{place-items:center;min-width:320px;min-height:100vh;margin:0;display:flex}h1{font-size:3.2em;line-height:1.1}button{cursor:pointer;background-color:#1a1a1a;border:1px solid #0000;border-radius:8px;padding:.6em 1.2em;font-family:inherit;font-size:1em;font-weight:500;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}}*{box-sizing:border-box}body{background:linear-gradient(135deg,#667eea 0%,#764ba2 50%,#f093fb 100%);min-height:100vh;margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;overflow-x:hidden}#root{text-align:center;flex-direction:column;width:100%;min-height:100vh;padding:0;display:flex}.app{flex-direction:column;flex:1;display:flex}.frosted-header{z-index:100;-webkit-backdrop-filter:blur(20px)saturate(180%);padding:env(safe-area-inset-top,0)env(safe-area-inset-right,0)0 env(safe-area-inset-left,0);background:#ffffffbf;border-bottom:.5px solid #ffffff4d;position:fixed;top:0;left:0;right:0;box-shadow:0 4px 24px #0000001a}.header-content{justify-content:space-between;align-items:center;max-width:100%;padding:.75rem 1rem;display:flex}.app-title{letter-spacing:-.02em;color:#1d1d1f;text-align:center;flex:1;margin:0;font-size:1.25rem;font-weight:600}.hamburger-btn{cursor:pointer;-webkit-tap-highlight-color:transparent;background:0 0;border:none;flex-direction:column;justify-content:center;align-items:center;gap:5px;width:44px;height:44px;padding:.5rem;display:flex}.hamburger-line{background:#1d1d1f;border-radius:2px;width:22px;height:2px;transition:all .3s}.hamburger-btn:active .hamburger-line{opacity:.6}.stats-pill{color:#fff;cursor:pointer;font-variant-numeric:tabular-nums;white-space:nowrap;-webkit-tap-highlight-color:transparent;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);border:none;border-radius:20px;justify-content:center;align-items:center;min-width:44px;height:44px;padding:.5rem .875rem;font-size:.875rem;font-weight:600;transition:all .2s;display:flex;box-shadow:0 4px 12px #667eea4d}.stats-pill:active{transform:scale(.96);box-shadow:0 2px 8px #667eea66}.overlay{z-index:199;background:#0006;animation:.2s fadeIn;position:fixed;inset:0}.stats-expanded{top:calc(env(safe-area-inset-top,0) + 65px);z-index:200;background:#fff;border-radius:16px;min-width:200px;padding:1.25rem;animation:.2s slideDown;position:fixed;right:1rem;box-shadow:0 12px 48px #0003,0 4px 16px #0000001a}.stats-expanded h3{color:#1d1d1f;text-align:left;margin:0 0 1rem;font-size:1.125rem;font-weight:600}.stat-row{border-bottom:.5px solid #e5e5e7;justify-content:space-between;align-items:center;padding:.625rem 0;display:flex}.stat-row:last-child{border-bottom:none}.stat-label{color:#666;text-align:left;font-size:.9375rem}.stat-value{color:#1d1d1f;font-variant-numeric:tabular-nums;font-size:1.125rem;font-weight:600}.menu-backdrop{z-index:299;background:#0006;animation:.3s fadeIn;position:fixed;inset:0}.menu-drawer{z-index:300;width:min(320px,85vw);padding:env(safe-area-inset-top,0)env(safe-area-inset-right,0)env(safe-area-inset-bottom,0)0;background:#f5f5f7;animation:.3s ease-out slideInRight;position:fixed;top:0;bottom:0;right:0;overflow-y:auto;box-shadow:-4px 0 24px #00000026}.menu-header{background:#fff;border-bottom:.5px solid #00000014;justify-content:space-between;align-items:center;padding:1.5rem 1.25rem 1rem;display:flex}.menu-header h2{color:#1d1d1f;margin:0;font-size:1.5rem;font-weight:600}.close-btn{color:#666;cursor:pointer;-webkit-tap-highlight-color:transparent;background:0 0;border:none;border-radius:50%;justify-content:center;align-items:center;width:44px;height:44px;font-size:1.75rem;transition:background .15s;display:flex}.close-btn:active{background:#0000000d}.menu-section{border-bottom:.5px solid #00000014;padding:1.25rem}.menu-section:last-child{border-bottom:none}.menu-label{color:#666;text-transform:uppercase;letter-spacing:.02em;text-align:left;margin-bottom:.75rem;font-size:.8125rem;font-weight:600;display:block}.mode-selector{grid-template-columns:1fr 1fr;gap:.625rem;display:grid}.mode-btn{color:#1d1d1f;cursor:pointer;-webkit-tap-highlight-color:transparent;background:#fff;border:1.5px solid #d1d1d6;border-radius:10px;min-height:44px;padding:.75rem 1rem;font-size:.9375rem;font-weight:500;transition:all .15s}.mode-btn.active{color:#fff;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);border-color:#0000;font-weight:600;box-shadow:0 4px 12px #667eea4d}.mode-btn:active{transform:scale(.97)}.difficulty-pills{grid-template-columns:repeat(2,1fr);gap:.625rem;display:grid}.difficulty-pill{color:#1d1d1f;cursor:pointer;text-transform:capitalize;-webkit-tap-highlight-color:transparent;background:#fff;border:1.5px solid #d1d1d6;border-radius:10px;min-height:44px;padding:.75rem 1rem;font-size:.875rem;font-weight:500;transition:all .15s}.difficulty-pill.active{color:#fff;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);border-color:#0000;font-weight:600;box-shadow:0 4px 12px #667eea4d}.difficulty-pill:active{transform:scale(.97)}.failed-words-pill{color:#fff;background:linear-gradient(135deg,#ff6b6b 0%,#ee5a6f 100%);border-color:#0000;grid-column:1/-1;font-weight:500}.failed-words-pill:not(.active){color:#ff6b6b;background:#fff;border:1.5px solid #ff6b6b}.failed-words-pill.active{color:#fff;background:linear-gradient(135deg,#ff6b6b 0%,#ee5a6f 100%);border-color:#0000;font-weight:600;box-shadow:0 4px 12px #ff6b6b4d}.menu-action-btn{color:#1d1d1f;cursor:pointer;-webkit-tap-highlight-color:transparent;background:#fff;border:1.5px solid #d1d1d6;border-radius:10px;width:100%;min-height:44px;margin-bottom:.75rem;padding:.875rem 1rem;font-size:1rem;font-weight:500;transition:all .15s}.menu-action-btn:last-child{margin-bottom:0}.menu-action-btn.danger{color:#ff3b30;border-color:#ff3b30}.menu-action-btn:active{opacity:.8;transform:scale(.98)}.menu-section.about{background:#fff}.menu-section.about h3{color:#1d1d1f;text-align:left;margin:0 0 .625rem;font-size:1rem;font-weight:600}.menu-section.about p{color:#666;text-align:left;margin:0 0 .625rem;font-size:.875rem;line-height:1.5}.menu-section.about p:last-child{margin-bottom:0}main{padding:calc(env(safe-area-inset-top,0) + 65px)1rem 2rem;flex-direction:column;flex:1;justify-content:center;align-items:center;min-height:calc(100vh - 65px);display:flex}.card-game{-webkit-backdrop-filter:blur(40px)saturate(180%);background:#ffffffd9;border:1px solid #fff9;border-radius:24px;flex-direction:column;align-items:center;width:100%;max-width:480px;min-height:380px;margin:0 auto;padding:2rem 1.5rem 1.75rem;display:flex;position:relative;box-shadow:0 20px 60px #0003,0 8px 24px #00000026}.card-game .prompt{width:100%;margin-bottom:1.5rem}.card-game .prompt strong{color:#666;font-size:.875rem;font-weight:600}.card-game h2{color:#1d1d1f;word-wrap:break-word;max-width:100%;margin:.5rem 0 0;font-size:1.75rem;font-weight:700}.text-answer{flex-direction:column;gap:.75rem;width:100%;margin-bottom:1rem;display:flex}.answer-input{-webkit-backdrop-filter:blur(10px);color:#1d1d1f;background:#f5f5f7e6;border:2px solid #c8c8c84d;border-radius:12px;outline:none;width:100%;min-height:48px;padding:.875rem 1rem;font-size:1rem;transition:all .2s}.answer-input:focus{background:#fffffff2;border-color:#667eea99;box-shadow:0 4px 16px #667eea33}.answer-input:disabled{opacity:.5;cursor:not-allowed}.submit-btn{color:#fff;cursor:pointer;-webkit-tap-highlight-color:transparent;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);border:none;border-radius:12px;width:100%;min-height:48px;padding:.875rem 1.5rem;font-size:1rem;font-weight:600;transition:all .2s;box-shadow:0 4px 16px #667eea4d}.submit-btn:active:not(:disabled){transform:scale(.98);box-shadow:0 2px 12px #667eea66}.submit-btn:disabled{cursor:not-allowed;box-shadow:none;background:#c7c7cc}.feedback{text-align:center;border-radius:12px;width:100%;margin-bottom:1rem;padding:.875rem 1rem;font-size:.9375rem;font-weight:500}.correct-feedback{color:#1e7e34;background:#d4f4dd}.wrong-feedback{color:#d8000c;background:#ffe5e3}.help-section{flex-direction:column;align-items:center;width:100%;margin-bottom:1rem;display:flex}.help-text{color:#999;margin:.25rem 0;font-size:.875rem}.help-btn{color:#fff;cursor:pointer;-webkit-tap-highlight-color:transparent;background:linear-gradient(135deg,#f093fb 0%,#f5576c 100%);border:none;border-radius:12px;min-height:44px;margin-top:.25rem;padding:.625rem 1.5rem;font-size:.9375rem;font-weight:600;transition:all .2s;box-shadow:0 4px 16px #f093fb4d}.help-btn:disabled{cursor:not-allowed;box-shadow:none;background:#c7c7cc}.help-btn:active:not(:disabled){transform:scale(.98);box-shadow:0 2px 12px #f093fb66}.choices{flex-direction:column;gap:.75rem;width:100%;margin-bottom:1rem;display:flex}.choice-btn{-webkit-backdrop-filter:blur(10px);color:#1d1d1f;cursor:pointer;text-align:center;-webkit-tap-highlight-color:transparent;background:#f5f5f7e6;border:2px solid #c8c8c84d;border-radius:12px;min-height:48px;padding:.875rem 1rem;font-size:1rem;transition:all .2s}.choice-btn:active:not(:disabled){background:#fffffff2;transform:scale(.98)}.choice-btn.correct{color:#fff;background:#34c759;border-color:#34c759;font-weight:600}.choice-btn.wrong{color:#fff;background:#ff3b30;border-color:#ff3b30;font-weight:600}.choice-btn.flash{animation:.7s flash}@keyframes flash{0%{box-shadow:0 0 #34c75966}to{box-shadow:0 0 0 20px #34c75900}}.card-meta{color:#666;justify-content:space-between;width:100%;margin-top:auto;padding-top:1rem;font-size:.8125rem;font-weight:500;display:flex}.tags-list{text-align:left}.difficulty{text-align:right;text-transform:capitalize}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideDown{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}@keyframes slideInRight{0%{transform:translate(100%)}to{transform:translate(0)}}@media (min-width:768px){.app-title{font-size:1.5rem}.card-game{max-width:520px;padding:2.5rem 2rem 2rem}.card-game h2{font-size:2rem}.text-answer{flex-direction:row}.submit-btn{width:auto;min-width:120px}.menu-drawer{width:360px}.difficulty-pills{grid-template-columns:repeat(2,1fr)}}@media (min-width:1024px){main{justify-content:center}.card-game{max-width:600px}}