:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;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}h1{font-size:3.2em;line-height:1.1}@media (prefers-color-scheme: light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}}body{font-family:Inter,Segoe UI,Arial,sans-serif;background:linear-gradient(135deg,#232347,#2d2d5a);min-height:100vh;margin:0;color:#f5f6fa}.practice-card{background:#29295a;border-radius:1.5rem;box-shadow:0 4px 32px #2c2c5440;max-width:420px;margin:48px auto;padding:2.5rem 2rem 2rem;text-align:center;position:relative;border:none}.practice-mascot{font-size:2.2rem;margin-bottom:.5rem;display:block}.practice-title{font-size:1.7rem;font-weight:700;color:#ffd600;margin-bottom:1.2rem;letter-spacing:1px}.practice-question{font-size:1.3rem;color:#f5f6fa;margin-bottom:1.2rem;font-weight:600}.practice-input{font-size:1.2rem;padding:.7rem 1.2rem;border-radius:1rem;border:none;outline:none;margin-bottom:1.2rem;background:#232347;color:#ffd600;font-weight:600;text-align:center;box-shadow:0 2px 8px #2c2c541a;transition:box-shadow .2s}.practice-input:focus{box-shadow:0 4px 16px #7c5cff26}.practice-btn{font-size:1.1rem;background:#7c5cff;color:#fff;border:none;border-radius:1.5rem;padding:.7rem 2.2rem;margin-top:1rem;font-weight:600;cursor:pointer;box-shadow:0 2px 8px #7c5cff1a;transition:background .2s,transform .1s}.practice-btn:hover{background:#5a3ec8;transform:scale(1.04)}.practice-complete{color:#ffd600;font-size:1.5rem;font-weight:700;margin-bottom:1rem}.practice-accuracy{color:#b2b3c6;font-size:1.1rem;margin-bottom:1.2rem}.practice-try-another{background:#ffd600;color:#232347;border:none;border-radius:1.5rem;padding:.7rem 2.2rem;font-size:1rem;font-weight:700;margin-top:1.2rem;cursor:pointer;box-shadow:0 2px 8px #ffd6001a;transition:background .2s,transform .1s}.practice-try-another:hover{background:#ffe066;color:#7c5cff;transform:scale(1.04)}.practice-progress{width:100%;height:10px;background:#232347;border-radius:8px;margin-bottom:1.5rem;overflow:hidden;box-shadow:0 1px 4px #2c2c541a}.practice-progress-bar{height:100%;background:linear-gradient(90deg,#7c5cff,#ffd600);border-radius:8px;transition:width .3s}.factset-btn{background:#29295a;color:#ffd600;border:none;border-radius:1rem;padding:.7rem 1.5rem;margin:.3rem;font-size:1.1rem;font-weight:600;font-family:Inter,Segoe UI,Arial,sans-serif;box-shadow:0 2px 8px #2c2c541a;cursor:pointer;transition:background .2s,color .2s,transform .1s;outline:none}.factset-btn:hover,.factset-btn:focus{background:#7c5cff;color:#fff;transform:scale(1.05)}.numpad{display:flex;flex-wrap:wrap;justify-content:center;gap:.5rem;margin-top:1.5rem}.numpad-btn{background:#232347;color:#ffd600;border:none;border-radius:.8rem;width:3rem;height:3rem;font-size:1.3rem;font-weight:700;margin:.2rem;box-shadow:0 2px 8px #2c2c541a;cursor:pointer;transition:background .2s,color .2s,transform .1s;outline:none}.numpad-btn:hover,.numpad-btn:focus{background:#7c5cff;color:#fff;transform:scale(1.08)}.answer-correct{background:#2ecc40!important;color:#fff!important;transition:background .3s,color .3s}.answer-incorrect{background:#ff4e50!important;color:#fff!important;transition:background .3s,color .3s}.problem-animate-in{animation:slideIn .4s cubic-bezier(.68,-.55,.27,1.55)}.problem-animate-out{animation:slideOut .4s cubic-bezier(.68,-.55,.27,1.55)}@keyframes slideIn{0%{opacity:0;transform:translateY(40px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}@keyframes slideOut{0%{opacity:1;transform:translateY(0) scale(1)}to{opacity:0;transform:translateY(-40px) scale(.95)}}.confetti{position:absolute;left:50%;top:10%;transform:translate(-50%);font-size:2.5rem;pointer-events:none;animation:confetti-burst .8s ease}@keyframes confetti-burst{0%{opacity:0;transform:translate(-50%) scale(.5)}30%{opacity:1;transform:translate(-50%) scale(1.2)}to{opacity:0;transform:translate(-50%) scale(.8)}}.mode-select-container{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:60vh}.mode-btn{background:#7c5cff;color:#fff;border:none;border-radius:1.2rem;padding:.8rem 2.2rem;margin:.5rem;font-size:1.15rem;font-weight:600;font-family:Inter,Segoe UI,Arial,sans-serif;box-shadow:0 2px 8px #7c5cff1a;cursor:pointer;transition:background .2s,color .2s,transform .1s;outline:none}.mode-btn:hover,.mode-btn:focus{background:#ffd600;color:#232347;transform:scale(1.05)}.menu-btn-fixed{position:fixed;top:2rem;right:2rem;z-index:1000;background:#7c5cff;color:#fff;border:none;border-radius:1.2rem;padding:.7rem 2.2rem;font-size:1.1rem;font-weight:600;font-family:Inter,Segoe UI,Arial,sans-serif;box-shadow:0 2px 8px #7c5cff1a;cursor:pointer;transition:background .2s,color .2s,transform .1s;outline:none}.menu-btn-fixed:hover,.menu-btn-fixed:focus{background:#ffd600;color:#232347;transform:scale(1.05)}.challenge-timer{font-size:2.2rem;font-weight:700;color:#ffd600;margin-bottom:1.5rem;letter-spacing:2px;text-shadow:0 2px 8px #232347}.challenge-fail{color:#ff4e50;font-size:1.5rem;font-weight:700;margin-bottom:1.5rem}.challenge-celebrate{position:fixed;inset:0;z-index:2000;background:#2c2c54f5;display:flex;flex-direction:column;align-items:center;justify-content:center;animation:fadeIn .5s}.challenge-celebrate-message{color:#ffd600;font-size:3rem;font-weight:900;text-align:center;margin-bottom:2rem;text-shadow:0 4px 24px #7c5cff,0 2px 8px #232347}.challenge-celebrate-confetti{font-size:4rem;animation:confetti-burst 1.2s infinite alternate;display:flex;justify-content:center;align-items:center;width:100%;margin-bottom:1.5rem}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.home-container{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;background:linear-gradient(135deg,#232347,#2d2d5a)}.home-title{font-size:3rem;font-weight:900;color:#ffd600;margin-bottom:3rem;text-shadow:0 4px 24px #7c5cff,0 2px 8px #232347;letter-spacing:2px;text-align:center}.home-btn{background:#7c5cff;color:#fff;border:none;border-radius:1.5rem;padding:1.2rem 3.5rem;margin:1rem;font-size:1.5rem;font-weight:700;font-family:Inter,Segoe UI,Arial,sans-serif;box-shadow:0 2px 16px #7c5cff1a;cursor:pointer;transition:background .2s,color .2s,transform .1s;outline:none;display:block}.home-btn:hover,.home-btn:focus{background:#ffd600;color:#232347;transform:scale(1.07)}.admin-container{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:flex-start;padding-top:4rem;max-width:700px;margin:0 auto}.admin-title{font-size:2.2rem;font-weight:900;color:#ffd600;margin-bottom:2rem;text-shadow:0 4px 24px #7c5cff,0 2px 8px #232347;letter-spacing:2px;text-align:center}.admin-section{background:#29295a;border-radius:1.2rem;padding:2rem 2.5rem;margin-bottom:2rem;width:100%;box-shadow:0 2px 16px #2c2c541a}.admin-file-input{margin:1rem 0 2rem;font-size:1.1rem;padding:.7rem 1.2rem;border-radius:1rem;border:none;background:#232347;color:#ffd600;font-weight:600}.admin-summary-table{width:100%;border-collapse:collapse;margin-top:1.5rem;background:#232347;border-radius:.7rem;overflow:hidden}.admin-summary-table th,.admin-summary-table td{padding:.7rem 1rem;text-align:left;color:#ffd600}.admin-summary-table th{background:#7c5cff}.admin-summary-table tr:nth-child(2n){background:#29295a}.admin-summary-label{font-weight:700;color:#ffd600;margin-right:1rem}.admin-summary-value{font-weight:700;color:#fff}.admin-tiles{display:flex;gap:2rem;justify-content:center;margin-bottom:2.5rem}.admin-tile{background:#7c5cff;color:#fff;border:none;border-radius:1.5rem;padding:2.2rem 2.5rem;font-size:1.3rem;font-weight:700;font-family:Inter,Segoe UI,Arial,sans-serif;box-shadow:0 2px 16px #7c5cff1a;cursor:pointer;transition:background .2s,color .2s,transform .1s,box-shadow .2s;outline:none;min-width:220px;text-align:center;display:flex;flex-direction:column;align-items:center;justify-content:center}.admin-tile:hover,.admin-tile:focus{background:#ffd600;color:#232347;transform:scale(1.07);box-shadow:0 4px 32px #ffd60026}.admin-tile-active{background:#ffd600;color:#232347;box-shadow:0 4px 32px #ffd60040;transform:scale(1.04)}input[type=number]::-webkit-outer-spin-button,input[type=number]::-webkit-inner-spin-button{-webkit-appearance:none;margin:0;background:#7c5cff;border-radius:4px;width:20px;height:20px;position:relative;cursor:pointer}input[type=number]::-webkit-inner-spin-button:before{content:"▲";position:absolute;top:2px;left:50%;transform:translate(-50%);color:#fff;font-size:12px;font-weight:700}input[type=number]::-webkit-inner-spin-button:after{content:"▼";position:absolute;bottom:2px;left:50%;transform:translate(-50%);color:#fff;font-size:12px;font-weight:700}input[type=number]{-moz-appearance:textfield}input[type=number]::-moz-number-spin-box{background:#7c5cff;border-radius:4px}input[type=number]::-moz-number-spin-up,input[type=number]::-moz-number-spin-down{background:#7c5cff;border:none;color:#fff;font-weight:700;cursor:pointer}input[type=number]::-moz-number-spin-up:hover,input[type=number]::-moz-number-spin-down:hover{background:#5a3ec8}input[type=number]:hover{border-color:#ffd600;box-shadow:0 2px 8px #ffd60033}input[type=number]:focus{border-color:#ffd600;box-shadow:0 4px 16px #ffd6004d;outline:none}