:root{--bg-primary:#070a13;--bg-secondary:#0f1424;--glass-bg:#0f162abf;--glass-border:#ffffff14;--glass-border-glow:#d9770640;--text-primary:#f8fafc;--text-secondary:#94a3b8;--text-muted:#64748b;--gold-glow:#f59e0b;--gold-dark:#b45309;--gold-light:#fef08a;--emerald-glow:#10b981;--emerald-bg:#10b98126;--rose-glow:#f43f5e;--rose-bg:#f43f5e26;--cyan-glow:#06b6d4;--purple-glow:#a855f7;--font-sans:"Kantumruy Pro", system-ui, -apple-system, sans-serif;--font-serif:"Hanuman", Georgia, serif;font-family:var(--font-sans);--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;background-color:var(--bg-primary);color:var(--text-primary);-webkit-tap-highlight-color:transparent}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-primary);background-image:radial-gradient(circle at 10% 20%,#d9770614 0%,#0000 40%),radial-gradient(circle at 90% 80%,#a855f70f 0%,#0000 40%);background-attachment:fixed;min-height:100svh;margin:0;padding:0;overflow-x:hidden}#app{background:var(--bg-secondary);border-left:1px solid var(--glass-border);border-right:1px solid var(--glass-border);flex-direction:column;width:100%;max-width:500px;min-height:100svh;margin:0 auto;display:flex;position:relative;box-shadow:0 0 40px #0009}.glass-card{background:var(--glass-bg);border:1px solid var(--glass-border);-webkit-backdrop-filter:blur(12px);border-radius:16px;padding:16px;transition:transform .2s,border-color .2s;box-shadow:0 8px 32px #0000005e}.kbach-gold-border{background:linear-gradient(var(--bg-secondary), var(--bg-secondary)) padding-box, linear-gradient(135deg, var(--gold-glow), var(--gold-dark), var(--purple-glow)) border-box;border:1px solid #0000;animation:4s linear infinite borderGlow;position:relative;box-shadow:0 0 15px #d9770640}.kbach-emerald-border{background:linear-gradient(var(--bg-secondary), var(--bg-secondary)) padding-box, linear-gradient(135deg, var(--emerald-glow), #047857, var(--cyan-glow)) border-box;border:1px solid #0000;position:relative;box-shadow:0 0 15px #10b98140}.kbach-cyan-border{background:linear-gradient(var(--bg-secondary), var(--bg-secondary)) padding-box, linear-gradient(135deg, var(--cyan-glow), #0e7490, var(--purple-glow)) border-box;border:1px solid #0000;position:relative;box-shadow:0 0 15px #06b6d440}@keyframes borderGlow{0%,to{filter:drop-shadow(0 0 2px #d9770633)}50%{filter:drop-shadow(0 0 8px #d9770680)}}h1,h2,h3,h4{font-family:var(--font-sans);letter-spacing:-.02em;font-weight:700}.khmer-content{font-family:var(--font-serif);font-size:1.05rem;line-height:1.6}.btn{font-family:var(--font-sans);cursor:pointer;border:none;border-radius:12px;justify-content:center;align-items:center;gap:8px;padding:12px 20px;font-size:.95rem;font-weight:600;text-decoration:none;transition:all .2s cubic-bezier(.4,0,.2,1);display:inline-flex}.btn-primary{background:linear-gradient(135deg, var(--gold-glow) 0%, var(--gold-dark) 100%);color:#fff;box-shadow:0 4px 15px #d977064d}.btn-primary:active{background:var(--gold-dark);transform:scale(.97)}.btn-secondary{border:1px solid var(--glass-border);color:var(--text-primary);background:#ffffff0f}.btn-secondary:active{background:#ffffff1f}.pulse-hover{transform:translate(0,0)}.pulse-hover:active{transform:scale(.96)}.streak-orange{color:#f59e0b;filter:drop-shadow(0 0 5px #f59e0b80);animation:1.5s ease-in-out infinite alternate flameWiggle}.streak-purple{color:#a855f7;filter:drop-shadow(0 0 8px #a855f7b3);animation:1.2s ease-in-out infinite alternate flameWiggle}.streak-gold{color:#fbbf24;filter:drop-shadow(0 0 12px #fbbf24e6);animation:.8s ease-in-out infinite alternate flameWiggle,.5s infinite sparkLight}@keyframes flameWiggle{0%{transform:scale(1)rotate(-2deg)}to{transform:scale(1.08)rotate(2deg)}}@keyframes sparkLight{0%,to{opacity:.9}50%{opacity:1;filter:drop-shadow(0 0 15px #fbbf24)}}.success-overlay{z-index:100;text-align:center;background:#070a13f2;flex-direction:column;justify-content:center;align-items:center;padding:24px;animation:.3s ease-out forwards fadeIn;display:flex;position:absolute;inset:0}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.form-input{border:1px solid var(--glass-border);width:100%;color:var(--text-primary);font-family:var(--font-sans);background:#ffffff0a;border-radius:12px;padding:12px 16px;font-size:1rem;transition:border-color .2s}.form-input:focus{border-color:var(--gold-glow);background:#ffffff14;outline:none}.app-container{flex-direction:column;height:100svh;display:flex;position:relative;overflow:hidden}.app-header{border-bottom:1px solid var(--glass-border);-webkit-backdrop-filter:blur(10px);z-index:10;background:#0f1423e6;justify-content:space-between;align-items:center;padding:14px 16px;display:flex}.profile-summary{align-items:center;gap:10px;display:flex}.avatar-wrapper{background:#1e293b;border-radius:50%;justify-content:center;align-items:center;width:44px;height:44px;padding:2px;display:flex;position:relative}.avatar-image{object-fit:cover;border-radius:50%;width:100%;height:100%}.avatar-border-glow{background:linear-gradient(135deg, var(--gold-glow), var(--gold-dark)) border-box;-webkit-mask-composite:destination-out;pointer-events:none;border:2px solid #0000;border-radius:50%;animation:3s linear infinite borderRotate;position:absolute;inset:-3px;-webkit-mask-image:linear-gradient(#fff 0 0),linear-gradient(#fff 0 0);mask-image:linear-gradient(#fff 0 0),linear-gradient(#fff 0 0);-webkit-mask-position:0 0,0 0;mask-position:0 0,0 0;-webkit-mask-size:auto,auto;mask-size:auto,auto;-webkit-mask-repeat:repeat,repeat;mask-repeat:repeat,repeat;-webkit-mask-clip:padding-box,border-box;mask-clip:padding-box,border-box;-webkit-mask-origin:padding-box,border-box;mask-origin:padding-box,border-box;-webkit-mask-composite:xor;mask-composite:exclude;-webkit-mask-source-type:auto,auto;mask-mode:match-source,match-source}.avatar-border-cyan{background:linear-gradient(135deg, var(--cyan-glow), #0284c7) border-box;-webkit-mask-composite:destination-out;pointer-events:none;border:2px solid #0000;border-radius:50%;position:absolute;inset:-3px;-webkit-mask-image:linear-gradient(#fff 0 0),linear-gradient(#fff 0 0);mask-image:linear-gradient(#fff 0 0),linear-gradient(#fff 0 0);-webkit-mask-position:0 0,0 0;mask-position:0 0,0 0;-webkit-mask-size:auto,auto;mask-size:auto,auto;-webkit-mask-repeat:repeat,repeat;mask-repeat:repeat,repeat;-webkit-mask-clip:padding-box,border-box;mask-clip:padding-box,border-box;-webkit-mask-origin:padding-box,border-box;mask-origin:padding-box,border-box;-webkit-mask-composite:xor;mask-composite:exclude;-webkit-mask-source-type:auto,auto;mask-mode:match-source,match-source}@keyframes borderRotate{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.user-text{flex-direction:column;display:flex}.user-name{color:var(--text-primary);white-space:nowrap;text-overflow:ellipsis;max-width:120px;font-size:.9rem;font-weight:700;overflow:hidden}.user-title{color:var(--gold-glow);font-size:.7rem;font-weight:500}.stats-row{align-items:center;gap:12px;display:flex}.stat-pill{border:1px solid var(--glass-border);font-size:.85rem;font-weight:600;font-family:var(--font-sans);background:#ffffff0d;border-radius:20px;align-items:center;gap:6px;padding:6px 10px;display:inline-flex}.gold-counter{color:var(--gold-glow)}.app-content{flex-direction:column;flex:1;gap:16px;padding:16px 16px 90px;display:flex;overflow-y:auto}.app-nav{border-top:1px solid var(--glass-border);-webkit-backdrop-filter:blur(15px);z-index:10;background:#0f1423f2;grid-template-columns:repeat(4,1fr);height:72px;display:grid;position:absolute;bottom:0;left:0;right:0}.nav-item{color:var(--text-secondary);cursor:pointer;font-family:var(--font-sans);background:0 0;border:none;flex-direction:column;justify-content:center;align-items:center;gap:4px;font-size:.72rem;font-weight:600;transition:color .2s,transform .1s;display:flex}.nav-item:active{transform:scale(.92)}.nav-item.active{color:var(--gold-glow)}.nav-icon{stroke-width:2.2px;width:22px;height:22px}.subject-grid{grid-template-columns:1fr;gap:12px;display:grid}.subject-card{cursor:pointer;justify-content:space-between;align-items:center;padding:18px;display:flex}.subject-info{align-items:center;gap:14px;display:flex}.subject-icon-bg{width:44px;height:44px;color:var(--gold-glow);background:#d977061a;border-radius:12px;justify-content:center;align-items:center;display:flex}.subject-title{color:var(--text-primary);font-size:1.05rem;font-weight:700}.subject-subtitle{color:var(--text-secondary);font-size:.78rem}.quiz-progress-bar{background:#ffffff0d;border-radius:4px;width:100%;height:8px;margin-bottom:6px;overflow:hidden}.quiz-progress-fill{background:linear-gradient(90deg, var(--gold-glow), var(--purple-glow));height:100%;transition:width .3s}.question-box{margin-bottom:8px;padding:20px 16px}.question-text{color:var(--text-primary);text-align:left;font-size:1.15rem;font-weight:700;line-height:1.6}.options-container{flex-direction:column;gap:10px;width:100%;display:flex}.option-btn{border:1px solid var(--glass-border);color:var(--text-primary);font-family:var(--font-sans);text-align:left;cursor:pointer;background:#ffffff08;border-radius:14px;align-items:center;gap:12px;width:100%;padding:14px 16px;font-size:.98rem;transition:all .2s;display:flex}.option-btn:active{transform:scale(.98)}.option-btn.selected{border-color:var(--gold-glow);background:#d9770614}.option-btn.correct{border-color:var(--emerald-glow);background:var(--emerald-bg);box-shadow:0 0 15px #10b98126}.option-btn.incorrect{border-color:var(--rose-glow);background:var(--rose-bg);box-shadow:0 0 15px #f43f5e26}.option-letter{width:28px;height:28px;color:var(--text-secondary);background:#ffffff0f;border-radius:8px;justify-content:center;align-items:center;font-size:.9rem;font-weight:700;display:flex}.option-btn.correct .option-letter{background:var(--emerald-glow);color:#fff}.option-btn.incorrect .option-letter{background:var(--rose-glow);color:#fff}.explanation-box{border-left:3px solid var(--gold-glow);text-align:left;background:#d977060a;border-radius:0 12px 12px 0;margin-top:14px;padding:12px 14px}.explanation-title{color:var(--gold-glow);margin-bottom:4px;font-size:.85rem;font-weight:700}.explanation-text{color:var(--text-primary);font-size:.92rem;line-height:1.6}.leaderboard-switch{border:1px solid var(--glass-border);background:#ffffff0a;border-radius:12px;grid-template-columns:repeat(4,1fr);padding:4px;display:grid}.lb-tab{color:var(--text-secondary);font-family:var(--font-sans);cursor:pointer;background:0 0;border:none;border-radius:8px;padding:8px 4px;font-size:.72rem;font-weight:700;transition:all .2s}.lb-tab.active{background:var(--gold-glow);color:#000;box-shadow:0 2px 10px #d9770640}.leaderboard-list{flex-direction:column;gap:8px;margin-top:8px;display:flex}.leaderboard-row{border:1px solid var(--glass-border);background:#ffffff05;border-radius:12px;justify-content:space-between;align-items:center;padding:12px 16px;display:flex}.leaderboard-row.user-row{border-color:var(--gold-glow);background:#d977060d}.lb-left{align-items:center;gap:12px;display:flex}.lb-rank{text-align:center;width:20px;color:var(--text-secondary);font-size:.92rem;font-weight:700}.rank-gold{color:#fbbf24}.rank-silver{color:#cbd5e1}.rank-bronze{color:#b45309}.lb-avatar{background:#ffffff14;border-radius:50%;width:32px;height:32px}.lb-name{font-size:.92rem;font-weight:600}.lb-level{color:var(--gold-glow);margin-left:6px;font-size:.7rem}.lb-xp{color:var(--text-primary);font-size:.88rem;font-weight:700}.shop-grid{grid-template-columns:1fr;gap:12px;display:grid}.shop-card{justify-content:space-between;align-items:center;padding:16px;display:flex}.shop-card-left{align-items:center;gap:14px;display:flex}.shop-item-preview{background:#ffffff0a;border-radius:12px;justify-content:center;align-items:center;width:52px;height:52px;display:flex;position:relative;overflow:hidden}.shop-item-title{color:var(--text-primary);font-size:.98rem;font-weight:700}.shop-item-desc{color:var(--text-secondary);font-size:.76rem}.shop-item-price{color:var(--gold-glow);align-items:center;gap:4px;margin-top:4px;font-size:.85rem;font-weight:700;display:flex}.confetti-canvas{pointer-events:none;z-index:101;width:100%;height:100%;position:absolute;top:0;left:0}.ladder-map{border:1px solid var(--glass-border);background:#0f172a66;border-radius:20px;flex-direction:column;gap:24px;margin-bottom:8px;padding:16px 8px;display:flex;position:relative}.ladder-map:before{content:"";background:linear-gradient(180deg, var(--gold-glow), var(--purple-glow), var(--cyan-glow));z-index:0;opacity:.6;border-radius:3px;width:6px;position:absolute;top:40px;bottom:40px;left:50%;transform:translate(-50%)}.ladder-level-row{z-index:1;justify-content:space-between;align-items:center;width:100%;display:flex;position:relative}.ladder-level-row:nth-child(2n){flex-direction:row-reverse}.ladder-level-info{text-align:left;width:55%;padding:0 10px}.ladder-level-row:nth-child(2n) .ladder-level-info{text-align:right}.ladder-checkpoint{border:3px solid var(--glass-border);cursor:pointer;background:#1e293b;border-radius:50%;justify-content:center;align-items:center;width:54px;height:54px;transition:all .3s cubic-bezier(.4,0,.2,1);display:flex;position:relative;box-shadow:0 4px 15px #00000080}.ladder-checkpoint.completed{border-color:var(--emerald-glow);background:#10b98126;box-shadow:0 0 15px #10b98166}.ladder-checkpoint.active{border-color:var(--gold-glow);background:#f59e0b33;animation:2s infinite alternate checkpointPulse;box-shadow:0 0 20px #f59e0b99}.ladder-checkpoint.locked{color:#475569;cursor:not-allowed;background:#0f172a;border-color:#334155}.ladder-checkpoint-icon{width:22px;height:22px}@keyframes checkpointPulse{0%{filter:drop-shadow(0 0 2px #f59e0b4d);transform:scale(1)}to{filter:drop-shadow(0 0 10px #f59e0bcc);transform:scale(1.08)}}.moeys-video-btn{border:1px solid var(--cyan-glow);color:var(--cyan-glow);cursor:pointer;text-align:center;background:#06b6d414;border-radius:12px;justify-content:center;align-items:center;gap:8px;width:100%;margin-top:12px;padding:10px 14px;font-size:.82rem;font-weight:700;transition:all .2s;display:flex}.moeys-video-btn:active{background:#06b6d42e;transform:scale(.97)}.video-overlay{z-index:105;background:#070a13f2;flex-direction:column;justify-content:center;align-items:center;padding:16px;animation:.25s ease-out forwards fadeIn;display:flex;position:absolute;inset:0}.video-player-container{border:1px solid var(--cyan-glow);background:#0f172a;border-radius:16px;width:100%;max-width:440px;overflow:hidden;box-shadow:0 10px 30px #06b6d44d}.simulated-player{aspect-ratio:16/9;cursor:pointer;background:#000;flex-direction:column;justify-content:center;align-items:center;width:100%;display:flex;position:relative}.player-controls{background:#0009;justify-content:space-between;align-items:center;height:40px;padding:0 16px;display:flex;position:absolute;bottom:0;left:0;right:0}.video-progress-bar{background:#fff3;height:4px;position:absolute;top:0;left:0;right:0}.video-progress-fill{background:var(--rose-glow);width:35%;height:100%;animation:15s linear infinite simulatedPlay}@keyframes simulatedPlay{0%{width:0%}to{width:100%}}.daily-grit-notification{border:1px dashed var(--gold-glow);color:var(--text-primary);text-align:left;background:#f59e0b14;border-radius:12px;margin-top:14px;padding:12px 14px;font-size:.8rem;line-height:1.45}.resilience-glow{animation:1.5s infinite alternate successPulse;box-shadow:0 0 20px #10b9814d}@keyframes successPulse{0%{border-color:var(--emerald-glow)}to{border-color:var(--cyan-glow);box-shadow:0 0 25px #06b6d466}}.leaderboard-subtabs{border:1px solid var(--glass-border);background:#ffffff08;border-radius:10px;grid-template-columns:repeat(3,1fr);gap:4px;margin-bottom:12px;padding:3px;display:grid}.subtab-btn{color:var(--text-secondary);font-family:var(--font-sans);cursor:pointer;background:0 0;border:none;border-radius:8px;padding:8px 4px;font-size:.72rem;font-weight:700;transition:all .2s}.subtab-btn.active{color:var(--gold-glow);background:#f59e0b26;border:1px solid #f59e0b4d}.school-coop-stats{color:var(--text-muted);margin-top:2px;font-size:.7rem;display:block}