@import "https://fonts.googleapis.com/css2?family=Fredoka:wght@400;600;700&display=swap";:root{--primary:#6c5ce7;--secondary:#a8e6cf;--accent:#ff8b94;--background:#f8f9fa;--surface:#fff;--text:#2d3436;--text-light:#636e72;--correct:#00b894;--incorrect:#d63031;--shadow:0 8px 30px #00000014}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--background);color:var(--text);font-family:Fredoka,sans-serif;line-height:1.6}.selector-container{text-align:center;max-width:800px;margin:0 auto}.back-button{color:#646cff;cursor:pointer;background:0 0;border:none;margin-bottom:1rem;font-size:1rem;font-weight:600;transition:color .2s}.back-button:hover{color:#535bf2}.app-container{max-width:800px;margin:0 auto;padding:2rem 1rem}.header{text-align:center;margin-bottom:3rem}.header h1{color:var(--primary);text-shadow:2px 2px #6c5ce733;margin-bottom:.5rem;font-size:3rem}.header 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var(--primary);box-shadow:var(--shadow);border-radius:12px;margin-bottom:2rem;padding:1.5rem}.text-correct{color:var(--correct)}.text-incorrect{color:var(--incorrect)}.quiz-actions{justify-content:space-between;margin-top:2rem;display:flex}.btn-primary{background:var(--primary);color:#fff;cursor:pointer;border:none;border-radius:12px;padding:1rem 2rem;font-family:inherit;font-size:1.2rem;font-weight:700;transition:transform .2s,box-shadow .2s;box-shadow:0 4px #4a3eb3}.btn-primary:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px #4a3eb3}.btn-primary:active:not(:disabled){transform:translateY(2px);box-shadow:0 2px #4a3eb3}.btn-primary:disabled{cursor:not-allowed;background:#b2bec3;box-shadow:0 4px #636e72}.btn-secondary{color:var(--text-light);cursor:pointer;background:0 0;border:2px solid #b2bec3;border-radius:12px;padding:.8rem 1.5rem;font-family:inherit;font-size:1rem;font-weight:600}.btn-secondary:hover{background:#f1f2f6}.score-card{text-align:center;background:var(--surface);box-shadow:var(--shadow);border-radius:24px;margin-bottom:2rem;padding:3rem}.score-circle{background:linear-gradient(135deg, var(--primary), var(--accent));color:#fff;border-radius:50%;justify-content:center;align-items:center;width:150px;height:150px;margin:2rem auto;display:flex;box-shadow:0 10px 20px #6c5ce74d}.score-text{font-size:3rem;font-weight:700}.review-item{background:var(--surface);box-shadow:var(--shadow);border-left:6px solid #dfe6e9;border-radius:12px;margin-bottom:1rem;padding:1.5rem}.review-correct{border-left-color:var(--correct)}.review-incorrect{border-left-color:var(--incorrect)}.fade-in{animation:.5s fadeIn}.slide-in{animation:.5s slideIn}.bounce{animation:2s infinite bounce}.pulse{animation:2s infinite pulse}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes 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auto;font-size:1.1rem;line-height:1.6}.settings-modal{max-width:500px}.settings-section{text-align:left;margin-bottom:1.5rem}.settings-section h3{color:var(--primary);margin-bottom:1rem;font-size:1.2rem}.avatar-grid,.class-grid{flex-wrap:wrap;justify-content:center;gap:10px;display:flex}.avatar-btn{cursor:pointer;background:0 0;border:2px solid #0000;border-radius:50%;padding:10px;font-size:2rem;transition:transform .2s,border-color .2s}.avatar-btn:hover{transform:scale(1.1)}.avatar-btn.selected{border-color:var(--primary);background:#6c5ce71a}.class-btn{color:var(--text);cursor:pointer;background:0 0;border:2px solid #b2bec3;border-radius:12px;padding:.8rem 1.2rem;font-family:inherit;font-size:1rem;font-weight:600;transition:all .2s}.class-btn:hover{background:#f1f2f6}.class-btn.selected{border-color:var(--primary);background:var(--primary);color:#fff}.error-message{color:var(--incorrect);background:#d630311a;border-radius:8px;margin-bottom:15px;padding:10px}.emoji-highlight{vertical-align:middle;margin:0 4px;font-size:1.4em;animation:.3s cubic-bezier(.175,.885,.32,1.275) popIn;display:inline-block}@keyframes popIn{0%{opacity:0;transform:scale(0)}to{opacity:1;transform:scale(1)}}.login-split-layout{flex-direction:column;align-items:center;gap:40px;min-height:calc(100vh - 120px);padding:20px;display:flex}@media (width>=900px){.login-split-layout{flex-direction:row;justify-content:center;align-items:stretch;gap:60px;max-width:1200px;margin:0 auto;padding-top:20px}}.login-info-section{flex-direction:column;flex:1;gap:30px;width:100%;max-width:500px;animation:.5s ease-out slideIn;display:flex}.login-info-card{background-color:var(--surface);box-shadow:var(--shadow);border:3px solid 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#dfe6e9;border-radius:999px;padding:.3rem .7rem;font-size:.8rem;font-weight:600;transition:color .15s,background .15s,border-color .15s}.review-filter:hover{color:var(--text);border-color:#b2bec3}.review-filter.is-active{color:#fff;background:var(--primary);border-color:var(--primary)}.review-empty{color:var(--text-light);padding:1.25rem 0}.review-item-head{flex-wrap:wrap;align-items:center;gap:.5rem;margin-bottom:.4rem;display:flex}.review-number{color:var(--text-light);font-size:.75rem;font-weight:800}.review-topic{color:var(--text-light);background:#f1f3f5;border-radius:999px;padding:.1rem .45rem;font-size:.7rem}.review-mark{letter-spacing:.02em;border-radius:999px;margin-left:auto;padding:.12rem .5rem;font-size:.72rem;font-weight:800}.review-mark.is-right{color:#007a63;background:#00b89424}.review-mark.is-wrong{color:#b3282a;background:#d630311f}.review-label{min-width:6.5rem;color:var(--text-light);font-size:.75rem;font-weight:700;display:inline-block}.review-title{margin-bottom:1rem}.review-subtitle{color:var(--text-light);text-transform:capitalize;margin-top:.2rem;font-size:.85rem;font-weight:500;display:block}.history-toolbar{gap:.5rem;margin-bottom:1rem;display:flex}.history-actions{align-items:center;gap:.4rem;display:inline-flex}.btn-review{border:1px solid var(--primary);color:var(--primary);font:inherit;cursor:pointer;background:#6c5ce714;border-radius:8px;align-items:center;gap:.35rem;padding:.3rem .7rem;font-size:.82rem;font-weight:700;transition:background 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