:root{--text:#6b6375;--text-h:#08060d;--bg:#fff;--border:#e5e4e7;--code-bg:#f4f3ec;--accent:#aa3bff;--accent-bg:#aa3bff1a;--accent-border:#aa3bff80;--social-bg:#f4f3ec80;--shadow:#0000001a 0 10px 15px -3px, #0000000d 0 4px 6px -2px;--sans:system-ui, "Segoe UI", Roboto, sans-serif;--heading:system-ui, "Segoe UI", Roboto, sans-serif;--mono:ui-monospace, Consolas, monospace;font:18px/145% var(--sans);letter-spacing:.18px;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial}}@media (width<=1024px){:root{font-size:16px}}@media (prefers-color-scheme:dark){:root{--text:#9ca3af;--text-h:#f3f4f6;--bg:#16171d;--border:#2e303a;--code-bg:#1f2028;--accent:#c084fc;--accent-bg:#c084fc26;--accent-border:#c084fc80;--social-bg:#2f303a80;--shadow:#0006 0 10px 15px -3px, #00000040 0 4px 6px -2px}#social .button-icon{filter:invert()brightness(2)}}body{margin:0}#root{text-align:center;box-sizing:border-box;flex-direction:column;width:100%;max-width:100%;min-height:100vh;margin:0;display:flex}h1,h2{font-family:var(--heading);color:var(--text-h);font-weight:500}h1{letter-spacing:-1.68px;margin:32px 0;font-size:56px}@media (width<=1024px){h1{margin:20px 0;font-size:36px}}h2{letter-spacing:-.24px;margin:0 0 8px;font-size:24px;line-height:118%}@media (width<=1024px){h2{font-size:20px}}p{margin:0}code,.counter{font-family:var(--mono);color:var(--text-h);border-radius:4px;display:inline-flex}code{background:var(--code-bg);padding:4px 8px;font-size:15px;line-height:135%}.map-container{background-color:#0f172a;justify-content:center;align-items:center;width:100vw;height:100vh;margin:0;padding:0;display:flex;overflow:hidden}.map-wrapper{aspect-ratio:9/16;background-image:url(/assets/map_bg--YaGUsFe.png);background-position:50%;background-repeat:no-repeat;background-size:cover;border:4px solid #334155;border-radius:8px;width:min(100vw,56.25vh);height:min(100vh,177.778vw);position:relative;box-shadow:0 0 50px #00000080}.level-node{z-index:2;cursor:pointer;-webkit-user-select:none;user-select:none;box-sizing:border-box;border-radius:50%;width:13%;height:0;padding-bottom:13%;transition:all .3s cubic-bezier(.175,.885,.32,1.275);position:absolute;transform:translate(-50%,-50%)}.level-node:hover:not(.locked){z-index:10;transform:translate(-50%,-50%)scale(1.15)}.level-node.cleared{background:linear-gradient(135deg,gold 0%,#f59e0b 100%);border:3px solid #fff;box-shadow:0 4px 12px #0006}.level-node.unlocked{background:linear-gradient(135deg,#38bdf8 0%,#2563eb 100%);border:3px solid #fff;animation:2s infinite pulse-glow;box-shadow:0 0 20px #38bdf899}.level-node.locked{cursor:not-allowed;opacity:.8;background:#475569;border:3px solid #94a3b8}.node-content{flex-direction:column;justify-content:center;align-items:center;width:100%;height:100%;display:flex;position:absolute;top:0;left:0}.level-number{color:#fff;text-shadow:1px 1px 3px #0009;font-size:clamp(.9rem,2.5vw,1.3rem);font-weight:900}.stars{gap:1px;display:flex;position:absolute;bottom:-35%}.star{filter:drop-shadow(0 1px 1px #00000080);font-size:.75rem}.map-wrapper.edit-active .level-node{cursor:move!important;opacity:1!important;pointer-events:auto!important}.map-wrapper.edit-active .level-node:after{content:"";pointer-events:none;border:2px dashed #38bdf8;border-radius:50%;animation:20s linear infinite rotate-dash;position:absolute;inset:-5px}@keyframes rotate-dash{to{transform:rotate(360deg)}}.map-wrapper.edit-active .level-node.locked{background:linear-gradient(135deg,#64748b 0%,#475569 100%);border-color:#94a3b8}.edit-mode-btn{-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);color:#38bdf8;cursor:pointer;z-index:200;background:#0f172abf;border:1px solid #fff3;border-radius:30px;align-items:center;gap:8px;padding:10px 18px;font-size:.95rem;font-weight:700;transition:all .3s cubic-bezier(.4,0,.2,1);display:flex;position:absolute;top:15px;left:170px;box-shadow:0 10px 25px -5px #0000004d,0 0 15px #38bdf833}.edit-mode-btn:hover{background:#0f172ae6;border-color:#38bdf8;transform:translateY(-2px);box-shadow:0 12px 30px -5px #38bdf866}.edit-mode-btn.active{color:#ef4444;border-color:#ef444480;box-shadow:0 0 20px #ef44444d}.edit-mode-btn.active:hover{border-color:#ef4444;box-shadow:0 12px 30px -5px #ef444480}.edit-panel{-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);box-sizing:border-box;z-index:1000;color:#f1f5f9;background:#0f172ad9;border:1.5px solid #ffffff26;border-radius:16px;flex-direction:column;gap:12px;width:340px;height:calc(100vh - 140px);max-height:650px;padding:18px;animation:.4s cubic-bezier(.16,1,.3,1) slide-right;display:flex;position:absolute;top:100px;left:20px;box-shadow:10px 20px 40px #00000080}@keyframes slide-right{0%{opacity:0;transform:translate(-30px)}to{opacity:1;transform:translate(0)}}@media (width<=1100px){.edit-panel{width:90%;height:auto;max-height:180px;animation:.4s cubic-bezier(.16,1,.3,1) slide-up;position:absolute;top:auto;bottom:20px;left:5%;box-shadow:0 20px 40px -10px #00000080}}@keyframes slide-up{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.edit-panel-header{border-bottom:1px solid #ffffff1a;justify-content:space-between;align-items:center;padding-bottom:8px;display:flex}.edit-panel-title{color:#38bdf8;align-items:center;gap:6px;font-size:.95rem;font-weight:700;display:flex}.edit-actions{gap:10px;display:flex}.copy-btn{color:#fff;cursor:pointer;background:linear-gradient(135deg,#38bdf8 0%,#2563eb 100%);border:none;border-radius:12px;padding:6px 14px;font-size:.85rem;font-weight:600;transition:all .2s;box-shadow:0 4px 12px #2563eb4d}.copy-btn:hover{transform:translateY(-1px);box-shadow:0 6px 16px #2563eb80}.copy-btn:active{transform:translateY(1px)}.code-container{text-align:left;white-space:pre-wrap;-webkit-user-select:all;user-select:all;background:#0006;border:1px solid #ffffff0d;border-radius:8px;flex-grow:1;padding:10px;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:.75rem;overflow-y:auto}@media (width<=480px){.level-node{width:16%;padding-bottom:16%}.level-name-label{font-size:.6rem}}.map-nav-btn{-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);color:#fff;cursor:pointer;z-index:100;-webkit-user-select:none;user-select:none;background:#0f172abf;border:1.5px solid #fff3;border-radius:50%;justify-content:center;align-items:center;width:55px;height:55px;font-size:1.6rem;transition:all .3s cubic-bezier(.175,.885,.32,1.275);display:flex;position:absolute;top:50%;transform:translateY(-50%);box-shadow:0 10px 25px -5px #0006}.map-nav-btn:hover{color:#38bdf8;background:#0f172ae6;border-color:#38bdf8;transform:translateY(-50%)scale(1.12);box-shadow:0 15px 30px -5px #38bdf866}.map-nav-btn:active{transform:translateY(-50%)scale(.95)}.map-nav-btn.prev{left:20px}.map-nav-btn.next{right:20px}.map-nav-btn.next.unlock-glow{border-color:#38bdf8;animation:2.5s infinite nav-glow;box-shadow:0 0 15px #38bdf880}@keyframes nav-glow{0%{box-shadow:0 0 #38bdf8b3,0 10px 25px -5px #0006}70%{box-shadow:0 0 0 15px #38bdf800,0 10px 25px -5px #0006}to{box-shadow:0 0 #38bdf800,0 10px 25px -5px #0006}}.map-wrapper.map-2-active{background-image:url(/assets/map_bg_2-ELlu6dCe.png)!important}.level-game-container{box-sizing:border-box;background-color:#f8fafc;width:100vw;min-height:100vh;padding:20px}.game-header{border-bottom:2px solid #e2e8f0;justify-content:space-between;align-items:center;gap:20px;margin-bottom:30px;padding-bottom:15px;display:flex}.header-left{align-items:center;gap:20px;display:flex}.back-button{color:#fff;cursor:pointer;background-color:#3b82f6;border:none;border-radius:8px;padding:10px 20px;font-weight:600;transition:all .2s}.back-button:hover{background-color:#2563eb;transform:translate(-5px)}.start-challenge-btn{color:#fff;cursor:pointer;background:linear-gradient(135deg,#f59e0b,#d97706);border:none;border-radius:12px;align-items:center;gap:8px;padding:12px 24px;font-size:1rem;font-weight:800;transition:all .3s;display:flex;box-shadow:0 4px 15px #d977064d}.start-challenge-btn:hover{transform:scale(1.05);box-shadow:0 6px 20px #d9770666}.start-challenge-btn:active{transform:scale(.98)}.word-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:20px;display:grid}@media (width<=480px){.word-grid{grid-template-columns:1fr 1fr;gap:12px}.word-card .eng{font-size:.95rem}.word-card .chi{font-size:.8rem}.level-game-container{padding:12px}}.word-card{cursor:pointer;background:#fff;border-radius:16px;flex-direction:column;transition:all .2s;display:flex;position:relative;overflow:hidden;box-shadow:0 4px 6px -1px #0000001a}.word-card.active{z-index:50;transform:scale(1.05);box-shadow:0 0 0 4px #3b82f6}.word-card.active.shadow-playing img,.word-card.is-playing img{animation:.4s ease-in-out infinite alternate speaking}@keyframes speaking{0%{transform:scale(1)}to{transform:scale(1.1)}}.word-card.locked-out{opacity:.3;filter:grayscale();pointer-events:none}.card-image-wrapper{aspect-ratio:1;width:100%;overflow:hidden}.card-image-wrapper img{object-fit:cover;width:100%;height:100%}.card-text{text-align:center;color:#334155;flex-direction:column;gap:2px;padding:10px 15px;display:flex}.card-text .eng{font-size:1.1rem;font-weight:800}.card-text .chi{color:#64748b;font-size:.9rem;font-weight:500}.shadow-overlay{text-align:center;background:#ffffffe6;flex-direction:column;justify-content:center;align-items:center;padding:10px;display:flex;position:absolute;inset:0}.status-label{color:#1d4ed8;margin-bottom:10px;font-size:1.1rem;font-weight:700}.status-label.pulse{color:#ef4444;animation:1s infinite pulse-blue}.shadow-btns{flex-direction:column;gap:10px;width:100%;display:flex}.shadow-btns button{cursor:pointer;border:none;border-radius:8px;padding:8px;font-weight:700}.retake-btn{color:#fff;background:#94a3b8}.confirm-btn{color:#fff;background:#22c55e}.confirm-btn.disabled{color:#94a3b8;cursor:not-allowed;background:#e2e8f0}.warning-text{color:#ef4444;margin-bottom:5px;font-size:.8rem;font-weight:700}.quiz-main{flex-direction:column;align-items:center;gap:40px;display:flex}.quiz-play-btn{color:#fff;cursor:pointer;background:#3b82f6;border:none;border-radius:50%;width:120px;height:120px;font-size:1.5rem;box-shadow:0 10px 20px #3b82f64d}.quiz-options{grid-template-columns:1fr 1fr;gap:20px;width:100%;max-width:500px;display:grid}.quiz-option-card{aspect-ratio:1;cursor:pointer;background:#fff;border-radius:12px;position:relative;overflow:hidden;box-shadow:0 4px 6px #0000001a}.quiz-option-card img{object-fit:cover;width:100%;height:100%}.correct-overlay{color:#fff;background:#22c55ecc;justify-content:center;align-items:center;font-size:4rem;display:flex;position:absolute;inset:0}@keyframes pulse-blue{0%{transform:scale(1)}50%{transform:scale(1.1)}to{transform:scale(1)}}.shake{animation:.5s ease-in-out shake-anim}@keyframes shake-anim{0%,to{transform:translate(0)}25%{transform:translate(-10px)}75%{transform:translate(10px)}}.correct-blink{animation:.5s success-glow}@keyframes success-glow{0%{background:#fff}50%{background:#dcfce7}to{background:#fff}}.correct-highlight{z-index:10;box-shadow:0 0 0 5px #22c55e!important}.challenge-result{text-align:center;background:#fff;border-radius:24px;max-width:600px;margin:100px auto;padding:40px;box-shadow:0 20px 40px #0000001a}.result-score{color:#334155;margin:30px 0;font-size:2rem;font-weight:800}.result-score span{font-size:3rem}.result-score span.pass{color:#22c55e}.result-score span.fail{color:#ef4444}.result-msg{margin-bottom:40px;font-size:1.2rem;font-weight:600}.result-msg.pass{color:#16a34a}.result-msg.fail{color:#dc2626}.back-to-map-btn{color:#fff;cursor:pointer;background:#3b82f6;border:none;border-radius:12px;padding:15px 40px;font-size:1.1rem;font-weight:700}.game-loading{color:#64748b;justify-content:center;align-items:center;height:100vh;font-size:1.5rem;display:flex}.login-container{background:linear-gradient(135deg,#0f2027,#203a43,#2c5364);justify-content:center;align-items:center;min-height:100vh;padding:1rem;display:flex}.login-card{-webkit-backdrop-filter:blur(20px);text-align:center;background:#ffffff12;border:1px solid #ffffff26;border-radius:24px;width:100%;max-width:420px;padding:2.5rem 2rem;animation:.5s slideUp;box-shadow:0 25px 60px #0006}@keyframes slideUp{0%{transform:translateY(100%)}to{transform:translateY(0)}}.login-logo{text-align:center;margin-bottom:2rem}.logo-icon{filter:drop-shadow(0 4px 12px #ffc83280);margin-bottom:.8rem;font-size:3.5rem;animation:3s ease-in-out infinite float;display:block}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-8px)}}.login-logo h1{color:#fff;letter-spacing:.02em;margin:0 0 .5rem;font-size:1.8rem;font-weight:800}.login-subtitle{color:#ffffffa6;margin:0;font-size:.9rem}.login-actions{flex-direction:column;gap:1.5rem;margin-top:1rem;display:flex}.google-login-wrapper{justify-content:center;width:100%;display:flex}.invite-code-section{background:#ffffff0d;border:1px dashed #fff3;border-radius:12px;margin-bottom:.5rem;padding:1rem}.invite-hint{color:#fff9;text-align:left;margin:0 0 .8rem;font-size:.8rem}.invite-input{color:#fbbf24;text-align:center;letter-spacing:2px;background:#0003;border:1px solid #ffffff1a;border-radius:8px;width:100%;padding:.7rem;font-size:1rem;font-weight:700}.invite-input:focus{border-color:#fbbf24;outline:none}.local-login-toggle{margin-top:1rem}.local-login-toggle button{color:#ffffff80;cursor:pointer;background:0 0;border:none;font-size:.85rem}.local-login-toggle button:hover{color:#fff}.local-login-form{background:#0003;border-radius:16px;flex-direction:column;gap:.8rem;margin-top:1rem;padding:1.2rem;animation:.3s fadeIn;display:flex}@keyframes fadeIn{0%{opacity:0;transform:translateY(-5px)}to{opacity:1;transform:translateY(0)}}.local-login-form input{color:#fff;background:#ffffff0d;border:1px solid #ffffff1a;border-radius:10px;padding:.8rem;font-size:.9rem}.local-login-form button{color:#fff;cursor:pointer;background:#3b82f6;border:none;border-radius:10px;padding:.8rem;font-weight:600}.local-login-form button:hover{background:#2563eb}.error-message{color:#fca5a5;background:#ef444426;border:1px solid #ef44444d;border-radius:10px;margin-top:1rem;padding:.65rem;font-size:.85rem;animation:.3s shake}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-6px)}75%{transform:translate(6px)}}.login-footer-hint{color:#fff6;margin-top:2rem;font-size:.8rem}.pin-modal-overlay{z-index:1000;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);background:#000c;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.pin-modal{text-align:center;background:#fff;border-radius:16px;width:300px;padding:30px}.pin-modal p{color:#64748b;margin:0 0 15px;font-size:.95rem}.default-pin-hint{color:#92400e;background-color:#fffbeb;border:1px solid #fde68a;border-radius:10px;margin-bottom:15px;padding:10px;font-size:.85rem;font-weight:500;animation:.3s fadeIn}.pin-modal input{text-align:center;letter-spacing:10px;border:2px solid #e2e8f0;border-radius:8px;width:100%;margin:20px 0;padding:10px;font-size:2rem}.modal-btns{gap:10px;display:flex}.modal-btns button{cursor:pointer;border:none;border-radius:8px;flex:1;padding:10px;font-weight:700}.modal-btns button:first-child{background:#edf2f7}.modal-btns button:last-child{color:#fff;background:#3182ce}.parent-zone-container{box-sizing:border-box;background-color:#f7fafc;width:100vw;min-height:100vh;padding:20px}.parent-header{align-items:center;gap:20px;margin-bottom:20px;display:flex}.parent-header h1{color:#2d3748;margin:0;font-size:1.5rem}.parent-header button{cursor:pointer;background:#fff;border:1px solid #cbd5e1;border-radius:8px;padding:8px 16px}.settings-card{text-align:left;background:#fff;border-radius:20px;max-width:600px;margin:0 auto;overflow:hidden;box-shadow:0 10px 15px -3px #0000001a}.tabs-header{background:#f1f5f9;border-bottom:1px solid #e2e8f0;padding:6px;display:flex}.tab-btn{cursor:pointer;color:#64748b;background:0 0;border:none;border-radius:12px;flex:1;padding:12px 5px;font-size:.9rem;font-weight:600;transition:all .2s}.tab-btn:hover{background:#e2e8f0}.tab-btn.active{color:#3182ce;background:#fff;box-shadow:0 2px 4px #0000000d}.tab-content{padding:24px}.tab-pane h3{color:#2d3748;border-bottom:2px solid #edf2f7;margin-top:0;margin-bottom:20px;padding-bottom:10px}.divider{border:none;border-top:1px solid #e2e8f0;margin:24px 0}.inline-group{background:#f8fafc;border-radius:12px;justify-content:space-between;align-items:center;margin-bottom:20px;padding:15px;display:flex}.inline-group label{color:#2d3748;margin-bottom:0!important}.toggle-switch{cursor:pointer;width:50px!important;height:25px!important}.progress-group{margin-bottom:20px}.progress-label-row{color:#4a5568;justify-content:space-between;margin-bottom:8px;font-weight:600;display:flex}.progress-stats{color:#3182ce}.progress-bar-bg{background-color:#edf2f7;border-radius:10px;width:100%;height:12px;overflow:hidden}.progress-bar-fill{background:linear-gradient(90deg,#4299e1 0%,#3182ce 100%);border-radius:10px;height:100%;transition:width .5s ease-out}.progress-bar-fill.complete{background:linear-gradient(90deg,#48bb78 0%,#38a169 100%)}.reset-section{text-align:center;margin-top:20px}.reset-btn{color:#c53030;cursor:pointer;background-color:#fff;border:1px solid #fed7d7;border-radius:8px;padding:8px 16px;font-size:.85rem;transition:all .2s}.reset-btn:hover{background-color:#fff5f5;border-color:#f56565}.form-group{text-align:left;margin-bottom:20px}.form-group label{color:#4a5568;margin-bottom:8px;font-weight:600;display:block}.form-group input,.form-group textarea{box-sizing:border-box;color:#2d3748;background:#fdfdfd;border:1px solid #e2e8f0;border-radius:10px;width:100%;padding:12px;font-size:1rem}.reward-examples{color:#64748b;background-color:#f8fafc;border-left:4px solid #94a3b8;border-radius:10px;margin-top:12px;padding:12px;font-size:.85rem}.reward-examples ul{margin:5px 0 0;padding-left:20px}.save-btn{color:#fff;cursor:pointer;background:linear-gradient(135deg,#48bb78,#38a169);border:none;border-radius:10px;width:100%;margin-top:10px;padding:14px;font-size:1rem;font-weight:700;box-shadow:0 4px 6px -1px #48bb7833}.status-msg{color:#38a169;text-align:center;margin:10px 0;font-weight:600}.points-status-card-inner{background:#f8fafc;border-radius:16px;margin-bottom:20px;padding:20px}.points-display-row{justify-content:space-between;align-items:center;display:flex}.points-info{flex-direction:column;gap:4px;display:flex}.points-label{color:#718096;text-transform:uppercase;letter-spacing:.5px;font-size:.85rem;font-weight:600}.points-value{color:#d97706;font-size:1.8rem;font-weight:800}.points-value.frozen-value{color:#718096;font-size:1.4rem}.frozen-badge{color:#fff;letter-spacing:.5px;background:linear-gradient(135deg,#c53030,#9b2c2c);border-radius:20px;padding:6px 14px;font-size:.8rem;font-weight:700}.frozen-hint{color:#d97706;background:#fffbeb;border-left:3px solid #f59e0b;border-radius:8px;margin:0 0 12px;padding:8px 12px;font-size:.85rem}.reactivation-status-box,.reactivation-action-box{text-align:center;background:#f8fafc;border:1px solid #e2e8f0;border-radius:12px;padding:20px}.warning-text{color:#ef4444;margin-bottom:15px;font-weight:600}.countdown-timer{color:#3b82f6;margin:15px 0;font-family:monospace;font-size:2rem;font-weight:800}.reactivate-btn{color:#fff;cursor:pointer;background:linear-gradient(135deg,#3b82f6,#2563eb);border:none;border-radius:12px;width:100%;padding:15px;font-size:1rem;font-weight:700;transition:all .2s;box-shadow:0 4px 12px #3b82f64d}.reactivate-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 15px #3b82f666}.reactivate-btn:disabled{opacity:.6;cursor:not-allowed}.hint{color:#64748b;margin-top:10px;font-size:.85rem}.status-ok-text{color:#16a34a;text-align:center;padding:10px;font-weight:600}.admin-zone-container{box-sizing:border-box;background-color:#f1f5f9;width:100vw;min-height:100vh;padding:20px}.admin-header{align-items:center;gap:20px;margin-bottom:30px;display:flex}.admin-header h1{color:#1e293b;margin:0;font-size:1.8rem}.admin-header .back-btn{cursor:pointer;background:#fff;border:1px solid #cbd5e1;border-radius:12px;padding:10px 20px;font-weight:600;transition:all .2s}.admin-header .back-btn:hover{background:#f8fafc;transform:translate(-5px)}.admin-content{max-width:1000px;margin:0 auto}.user-table-wrapper{background:#fff;border-radius:20px;overflow:hidden;box-shadow:0 10px 25px -5px #0000001a}.user-table{border-collapse:collapse;text-align:left;width:100%}.user-table th{color:#64748b;text-transform:uppercase;letter-spacing:.05em;background:#f8fafc;border-bottom:2px solid #f1f5f9;padding:18px 24px;font-size:.9rem;font-weight:700}.user-table td{color:#334155;border-bottom:1px solid #f1f5f9;padding:18px 24px;font-size:.95rem}.username-cell{color:#2563eb;font-weight:600}.status-pill{border-radius:20px;padding:6px 12px;font-size:.8rem;font-weight:700}.status-pill.active{color:#166534;background:#dcfce7}.status-pill.frozen{color:#991b1b;background:#fee2e2}.points-input{text-align:center;color:#d97706;background:#fffbeb;border:1px solid #cbd5e1;border-radius:8px;width:80px;padding:6px 10px;font-weight:700}.points-input:focus{border-color:#f59e0b;outline:none;box-shadow:0 0 0 3px #f59e0b33}.small-sub{color:#94a3b8;margin-top:4px;font-size:.75rem}.delete-user-btn{cursor:pointer;background:#fee2e2;border:none;border-radius:10px;justify-content:center;align-items:center;width:36px;height:36px;transition:all .2s;display:flex}.delete-user-btn:hover{background:#ef4444;transform:scale(1.1)}.admin-loading,.admin-error{text-align:center;color:#64748b;padding:50px;font-size:1.2rem}.admin-error{color:#ef4444}@media (width<=768px){.user-table th,.user-table td{padding:12px 10px;font-size:.8rem}}.reward-overlay{z-index:2000;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#000000d9;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.reward-content{text-align:center;background:#fff;border-radius:30px;width:90%;max-width:400px;padding:50px;animation:.5s cubic-bezier(.175,.885,.32,1.275) pop-in;box-shadow:0 0 50px #ffd70080}.confetti{margin-bottom:20px;font-size:3rem}.reward-content h1{color:#d97706;margin:0 0 20px;font-size:2.5rem}.reward-message{color:#1e293b;background:#fef3c7;border:2px dashed #f59e0b;border-radius:15px;margin-bottom:40px;padding:20px;font-size:1.5rem;font-weight:700}.claim-btn{color:#fff;cursor:pointer;background:linear-gradient(135deg,#f59e0b 0%,#d97706 100%);border:none;border-radius:50px;padding:15px 40px;font-size:1.25rem;font-weight:700;transition:transform .2s;box-shadow:0 10px 20px #d977064d}.claim-btn:hover{transform:scale(1.1)}@keyframes pop-in{0%{opacity:0;transform:scale(.5)}to{opacity:1;transform:scale(1)}}.App{width:100%;height:100%;position:relative}.main-nav{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);z-index:100;box-sizing:border-box;color:#fff;background:#ffffff1a;justify-content:space-between;align-items:center;width:100%;padding:15px 25px;display:flex;position:absolute;top:0;left:0}.user-info{text-shadow:0 2px 4px #0000004d;font-size:1.1rem;font-weight:700}.nav-actions{gap:15px;display:flex}.parent-nav-btn{color:#744210;cursor:pointer;background:#ecc94b;border:none;border-radius:20px;padding:8px 16px;font-weight:700;transition:transform .2s}.logout-btn{color:#fff;cursor:pointer;background:#fff3;border:1px solid #fff6;border-radius:20px;padding:8px 16px}.parent-nav-btn:hover,.logout-btn:hover{transform:scale(1.05)}.nav-center{flex:1;justify-content:center;display:flex}.points-badge{color:#744210;letter-spacing:.5px;background:linear-gradient(135deg,#f6e05e,#ecc94b);border-radius:20px;padding:6px 18px;font-size:1rem;font-weight:700;transition:background .3s;box-shadow:0 2px 8px #00000026}.points-badge.frozen{color:#e2e8f0;background:linear-gradient(135deg,#718096,#4a5568)}.freeze-banner{color:#fff;z-index:500;box-sizing:border-box;background:linear-gradient(135deg,#2d3748,#1a202c);width:100%;padding:20px 30px;animation:.4s ease-out slideUp;position:fixed;bottom:0;left:0;box-shadow:0 -4px 20px #0006}.freeze-banner-content{flex-wrap:wrap;align-items:center;gap:20px;max-width:700px;margin:0 auto;display:flex}.freeze-icon{flex-shrink:0;font-size:2.5rem}.freeze-text{flex:1;min-width:200px}.freeze-text strong{color:#fcd34d;font-size:1.1rem}.freeze-text p{color:#cbd5e0;margin:4px 0 0;font-size:.85rem;line-height:1.4}.redeem-form{flex-shrink:0;align-items:center;gap:8px;display:flex}.redeem-input{color:#fff;letter-spacing:1px;background:#1a202c;border:2px solid #4a5568;border-radius:10px;width:190px;padding:10px 14px;font-size:1rem;transition:border-color .2s}.redeem-input:focus{border-color:#fcd34d;outline:none}.redeem-btn{color:#fff;cursor:pointer;white-space:nowrap;background:linear-gradient(135deg,#d97706,#f59e0b);border:none;border-radius:10px;padding:10px 18px;font-weight:700;transition:transform .2s,opacity .2s}.redeem-btn:hover:not(:disabled){transform:scale(1.05)}.redeem-btn:disabled{opacity:.6;cursor:not-allowed}.redeem-msg{text-align:center;color:#a7f3d0;width:100%;padding-top:8px;font-size:.9rem}.mode-selection-overlay{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:1000;background:#000000b3;justify-content:center;align-items:center;width:100%;height:100%;padding:20px;display:flex;position:fixed;top:0;left:0}.mode-selection-card{text-align:center;color:#fff;background:#1e293b;border:1px solid #ffffff1a;border-radius:24px;width:100%;max-width:450px;padding:30px;animation:.3s ease-out modalIn;box-shadow:0 20px 50px #00000080}@keyframes modalIn{0%{opacity:0;transform:scale(.9)}to{opacity:1;transform:scale(1)}}.mode-selection-card h3{color:#f8fafc;margin:0 0 25px;font-size:1.5rem}.mode-options{flex-direction:column;gap:15px;margin-bottom:25px;display:flex}.mode-btn{color:#fff;cursor:pointer;text-align:left;background:#ffffff0d;border:2px solid #0000;border-radius:16px;align-items:center;gap:20px;padding:20px;transition:all .2s;display:flex}.mode-btn .icon{font-size:2.5rem}.mode-btn strong{margin-bottom:4px;font-size:1.1rem;display:block}.mode-btn p{color:#94a3b8;margin:0;font-size:.85rem}.mode-btn.learn:hover{background:#38bdf81a;border-color:#38bdf8}.mode-btn.challenge:hover{background:#f59e0b1a;border-color:#f59e0b}.mode-btn.challenge strong{color:#fbbf24}.cancel-btn{color:#94a3b8;cursor:pointer;background:0 0;border:none;padding:10px;font-size:.95rem}.cancel-btn:hover{color:#fff;text-decoration:underline}