@import "https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;600;800&display=swap";:root{--bg-color:#f8fafc;--text-primary:#0f172a;--text-secondary:#475569;--primary-color:#4f46e5;--primary-hover:#4338ca;--surface-color:#ffffffbf;--surface-border:#fff9;--danger-color:#ef4444;--success-color:#10b981}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-color);color:var(--text-primary);background-image:radial-gradient(at 0 0,#b3b3ff80 0,#0000 50%),radial-gradient(at 100% 0,#e6b3ff80 0,#0000 50%),radial-gradient(at 100% 100%,#b3e6ff80 0,#0000 50%),radial-gradient(at 0 100%,#ffb3e680 0,#0000 50%);background-attachment:fixed;flex-direction:column;min-height:100vh;font-family:Outfit,sans-serif;display:flex}.app-container{width:100%;max-width:1200px;margin:0 auto;padding:2rem}.glass{background:var(--surface-color);-webkit-backdrop-filter:blur(12px);border:1px solid var(--surface-border);border-radius:16px;box-shadow:0 8px 32px #1f268712}.main-header{border-radius:16px;justify-content:space-between;align-items:center;margin-bottom:2rem;padding:1rem 2rem;display:flex;box-shadow:0 4px 20px #0000000d}.brand-container{align-items:center;gap:1rem;display:flex}.brand-logo{border-radius:12px;width:auto;height:48px;transition:transform .3s;box-shadow:0 4px 10px #0000001a}.brand-container:hover .brand-logo{transform:rotate(-5deg)scale(1.05)}.brand-title{background:linear-gradient(135deg, var(--primary-color), #8b5cf6);-webkit-text-fill-color:transparent;letter-spacing:-1px;-webkit-background-clip:text;margin:0;font-size:2rem;font-weight:800}.lang-select{border:1px solid var(--surface-border);color:var(--text-primary);cursor:pointer;background:#fffc;border-radius:10px;outline:none;padding:.6rem 1rem;font-family:Outfit,sans-serif;font-weight:600;transition:all .2s;box-shadow:0 2px 10px #00000005}.lang-select:hover{background:#fff;border-color:#cbd5e1;box-shadow:0 4px 12px #0000000d}.header{justify-content:space-between;align-items:center;margin-bottom:2rem;padding:1rem 2rem;display:flex}.header h1{color:var(--primary-color);letter-spacing:-.5px;font-size:1.8rem;font-weight:800}.controls-toggle{background:var(--primary-color);color:#fff;cursor:pointer;border:none;border-radius:8px;padding:.6rem 1.2rem;font-weight:600;transition:all .2s}.controls-toggle:hover{background:var(--primary-hover);transform:translateY(-2px)}.controls-panel{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1.5rem;margin-bottom:2rem;padding:1.5rem;display:grid}.control-group{flex-direction:column;gap:.5rem;display:flex}.control-group label{color:var(--text-secondary);font-size:.9rem;font-weight:600}.control-group select,.control-group input[type=number]{background:#fff;border:1px solid #cbd5e1;border-radius:8px;outline:none;padding:.5rem;font-family:Outfit,sans-serif;font-size:1rem}.checkbox-group{flex-direction:column;gap:.4rem;display:flex}.checkbox-label{cursor:pointer;color:var(--text-primary);align-items:center;gap:.5rem;font-size:.9rem;display:flex}.generate-btn{background:var(--text-primary);color:#fff;cursor:pointer;border:none;border-radius:8px;height:100%;padding:.8rem;font-size:1rem;font-weight:600;transition:all .2s}.generate-btn:hover{background:#0f172a;transform:translateY(-2px);box-shadow:0 4px 12px #0000001a}.problems-container{grid-template-columns:repeat(10,1fr);gap:1rem;display:grid}.problem-card{text-align:right;flex-direction:column;align-items:center;padding:1.5rem;font-size:1.5rem;font-weight:600;transition:transform .2s;display:flex;position:relative}.problem-card:hover{transform:translateY(-4px)}.problem-row{justify-content:flex-end;gap:.5rem;width:100%;padding:.2rem 0;display:flex}.problem-row.sign-row{justify-content:space-between}.problem-sign{color:var(--text-secondary);align-self:center;font-size:1.2rem}.problem-divider{background-color:var(--text-primary);width:100%;height:2px;margin:.5rem 0}.answer-box{text-align:center;color:#0000;cursor:pointer;-webkit-user-select:none;user-select:none;background:#6366f11a;border-radius:8px;width:100%;padding:.5rem;font-weight:800;transition:all .3s;position:relative;overflow:hidden}.answer-box:before{content:"Hover to reveal";color:var(--primary-color);width:100%;font-size:.8rem;font-weight:600;transition:opacity .2s;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.answer-box:hover{color:var(--primary-color);background:#6366f133}.answer-box:hover:before{opacity:0}@media print{body{color:#000;background:#fff}.header,.controls-panel,.controls-toggle{display:none!important}.app-container{max-width:100%;padding:0}.glass{box-shadow:none;-webkit-backdrop-filter:none;backdrop-filter:none;background:0 0;border:none}.problems-container{grid-template-columns:repeat(5,1fr);gap:2rem}.problem-card{padding:0;font-size:1.2rem}.answer-box{display:none}.problem-divider{background-color:#000;margin-bottom:2rem}}.mode-switcher{justify-content:center;gap:1rem;margin-bottom:2rem;padding:1rem;display:flex}.mode-btn{color:var(--text-secondary);cursor:pointer;background:0 0;border:2px solid #0000;border-radius:12px;padding:.8rem 1.5rem;font-size:1.2rem;font-weight:800;transition:all .3s}.mode-btn.active{background:var(--primary-color);color:#fff;box-shadow:0 4px 15px #6366f166}.mode-btn:hover:not(.active){border-color:var(--primary-color);color:var(--primary-color)}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes bounceIn{0%{opacity:0;transform:scale(.8)}60%{opacity:1;transform:scale(1.05)}to{opacity:1;transform:scale(1)}}.animation-fadein{animation:.4s forwards fadeIn}.animation-bouncein{animation:.5s cubic-bezier(.175,.885,.32,1.275) forwards bounceIn}.interactive-setup{max-width:800px;margin:0 auto;padding:3rem}.start-game-btn{background:linear-gradient(135deg, var(--primary-color), var(--success-color));color:#fff;cursor:pointer;border:none;border-radius:50px;padding:1rem 3rem;font-size:1.5rem;font-weight:800;transition:transform .2s,box-shadow .2s;box-shadow:0 10px 20px #00000026}.start-game-btn:hover{transform:translateY(-3px)scale(1.05);box-shadow:0 15px 25px #0003}.game-header{justify-content:space-between;align-items:center;margin-bottom:2rem;padding:1rem 2rem;font-size:1.5rem;font-weight:800;display:flex}.timer{color:var(--text-primary);font-size:2rem;transition:color .3s}.timer.urgent{color:var(--danger-color);animation:1s infinite pulse}@keyframes pulse{0%{transform:scale(1)}50%{transform:scale(1.1)}to{transform:scale(1)}}.game-layout{grid-template-columns:1fr 350px;align-items:start;gap:3rem;display:grid}.game-problem-card{border:4px solid #0000;flex-direction:column;align-items:center;padding:3rem;transition:border-color .3s,box-shadow .3s;display:flex}.game-problem-card.glow-correct{border-color:var(--success-color);box-shadow:0 0 30px #10b9814d}.game-problem-card.glow-wrong{border-color:var(--danger-color);box-shadow:0 0 30px #ef44444d}.game-input-box{min-width:200px;min-height:80px;color:var(--primary-color);background:#fff;border-radius:16px;justify-content:center;align-items:center;font-size:3rem;font-weight:800;display:flex;box-shadow:inset 0 4px 6px #0000000d}.game-input-box .placeholder{color:#cbd5e1}.numpad-container{grid-template-columns:repeat(3,1fr);gap:1rem;padding:2rem;display:grid}.numpad-btn{color:var(--text-primary);cursor:pointer;background:#fff;border:none;border-radius:16px;height:80px;font-size:2rem;font-weight:800;transition:transform .1s,background .1s;box-shadow:0 4px 6px #0000000d}.numpad-btn:active{background:#f1f5f9;transform:scale(.95)}.submit-btn{background:var(--success-color);color:#fff}.submit-btn:active{background:#059669}.interactive-results{text-align:center;max-width:600px;margin:0 auto;padding:4rem}.score-display{color:var(--primary-color);margin:2rem 0;font-size:5rem;font-weight:800}.curriculum-container{max-width:1000px;margin:0 auto;padding:2rem}.levels-grid{grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem;display:grid}.level-card{text-align:center;flex-direction:column;align-items:center;padding:2rem;transition:transform .3s,box-shadow .3s;display:flex;position:relative;overflow:hidden}.level-card:hover{transform:translateY(-10px);box-shadow:0 15px 30px #0000001a}.level-card:before{content:"";background:linear-gradient(90deg, var(--primary-color), var(--success-color));width:100%;height:6px;position:absolute;top:0;left:0}.level-icon{margin-bottom:1rem;font-size:4rem}.level-info h3{color:var(--text-primary);margin-bottom:.5rem;font-size:1.5rem}.level-info p{color:var(--text-secondary);margin-bottom:2rem;font-size:1rem;line-height:1.4}.start-level-btn{background:var(--primary-color);color:#fff;cursor:pointer;border:none;border-radius:50px;width:100%;margin-top:auto;padding:.8rem 2rem;font-size:1.2rem;font-weight:800;transition:background .3s,transform .2s}.start-level-btn:hover{background:var(--primary-hover);transform:scale(1.05)}[dir=rtl]{font-family:Tajawal,Cairo,Inter,system-ui,sans-serif}[dir=rtl] .mode-switcher,[dir=rtl] .problem-row.sign-row{flex-direction:row}[dir=rtl] .controls-toggle{margin-left:1rem!important;margin-right:0!important}[dir=rtl] .game-header button{left:auto!important;right:0!important}[dir=rtl] .interactive-results{direction:ltr}[dir=rtl] .interactive-results h1,[dir=rtl] .interactive-results p,[dir=rtl] .interactive-results button{direction:rtl}.flash-anzan-container{text-align:center;background:#fffffff2;border-radius:20px;flex-direction:column;justify-content:center;align-items:center;height:60vh;margin-top:2rem;display:flex;box-shadow:0 8px 32px #0000001a}.flash-input-container{text-align:center;background:#fffffff2;border-radius:20px;max-width:600px;margin:2rem auto;padding:3rem 2rem;box-shadow:0 8px 32px #0000001a}.numpad-display{background:var(--bg-color);height:80px;color:var(--text-primary);border:2px solid #e2e8f0;border-radius:12px;justify-content:center;align-items:center;font-size:3rem;font-weight:700;display:flex}.glow-correct{animation:1s ease-in-out infinite alternate glowCorrect}.glow-wrong{animation:1s ease-in-out infinite alternate glowWrong}@keyframes glowCorrect{0%{box-shadow:0 0 10px #10b98133}to{box-shadow:0 0 30px #10b98199}}@keyframes glowWrong{0%{box-shadow:0 0 10px #ef444433}to{box-shadow:0 0 30px #ef444499}}