.grade-selection-container{background-color:#fff;border-radius:var(--border-radius-2xl);box-shadow:var(--shadow-xl);border:1px solid var(--color-gray-100);padding:2.5rem;margin:2rem auto;max-width:1200px}.dark .grade-selection-container{background-color:var(--color-gray-800);border-color:var(--color-gray-700)}.grade-icon-wrapper{width:4rem;height:4rem;background:linear-gradient(to right,var(--color-teal-500),var(--color-teal-600));border-radius:var(--border-radius-full);display:flex;align-items:center;justify-content:center;margin:0 auto 1.5rem;box-shadow:var(--shadow-lg);transition:transform .3s ease}.grade-icon-wrapper:hover{transform:scale(1.1) rotate(5deg)}.grade-icon-svg{width:2rem;height:2rem;color:#fff}.grade-description{font-size:1.125rem;line-height:1.75rem;color:var(--color-gray-600);text-align:center;max-width:36rem;margin:1.5rem auto 3rem}.dark 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.subject-description{color:var(--color-gray-300)}.subjects-grid{display:grid;grid-template-columns:repeat(1,minmax(0,1fr));gap:1.25rem}@media (min-width: 640px){.subjects-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:1.5rem}}@media (min-width: 768px){.subjects-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:1.75rem}}@media (min-width: 1024px){.subjects-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:2rem}}.subject-card{border-radius:var(--border-radius-xl);box-shadow:var(--shadow-lg);color:#fff;transition:transform .3s ease,box-shadow .3s ease;aspect-ratio:1 / 1;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:1.5rem;position:relative;overflow:hidden;cursor:pointer}.subject-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-2xl)}.subject-card-glow{position:absolute;top:-10%;right:-10%;bottom:-10%;left:-10%;background-color:#fff;opacity:.1;border-radius:var(--border-radius-full);filter:blur(3rem);animation:pulse-soft 3s cubic-bezier(.4,0,.6,1) infinite}.subject-emoji{font-size:2.5rem;line-height:1;margin-bottom:1rem;position:relative;z-index:10}.subject-title{font-size:1.125rem;line-height:1.5rem;font-weight:600;position:relative;z-index:10}.subject-teal{background-image:linear-gradient(to bottom right,var(--color-teal-400),var(--color-teal-600))}.subject-rose{background-image:linear-gradient(to bottom right,var(--color-rose-400),var(--color-rose-600))}.subject-amber{background-image:linear-gradient(to bottom 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360px){.grade-selection-container,.subject-selection-container{padding:1rem}.subject-emoji,.grade-emoji{font-size:2rem}.subject-title,.grade-title{font-size:1rem}}:root{--color-teal-50: #f0fdfa;--color-teal-100: #ccfbf1;--color-teal-200: #99f6e4;--color-teal-300: #5eead4;--color-teal-400: #2dd4bf;--color-teal-500: #14b8a6;--color-teal-600: #0d9488;--color-teal-700: #0f766e;--color-teal-800: #115e59;--color-teal-900: #134e4a;--color-rose-50: #fff1f2;--color-rose-100: #ffe4e6;--color-rose-200: #fecdd3;--color-rose-300: #fda4af;--color-rose-400: #fb7185;--color-rose-500: #f43f5e;--color-rose-600: #e11d48;--color-rose-700: #be123c;--color-rose-800: #9f1239;--color-rose-900: #881337;--color-amber-400: #fbbf24;--color-amber-500: #f59e0b;--color-amber-600: #d97706;--color-emerald-400: #34d399;--color-emerald-500: #10b981;--color-emerald-600: #059669;--color-gray-50: #f9fafb;--color-gray-100: #f3f4f6;--color-gray-200: #e5e7eb;--color-gray-300: #d1d5db;--color-gray-400: #9ca3af;--color-gray-500: #6b7280;--color-gray-600: #4b5563;--color-gray-700: #374151;--color-gray-800: #1f2937;--color-gray-900: #111827;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow: 0 1px 3px 0 rgba(0, 0, 0, .1), 0 1px 2px 0 rgba(0, 0, 0, .06);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .1), 0 10px 10px -5px rgba(0, 0, 0, .04);--shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, .25);--transition-all: all .3s cubic-bezier(.4, 0, .2, 1);--transition-colors: background-color, border-color, color, fill, stroke .15s cubic-bezier(.4, 0, .2, 1);--transition-opacity: opacity .3s cubic-bezier(.4, 0, .2, 1);--transition-shadow: box-shadow .3s cubic-bezier(.4, 0, .2, 1);--transition-transform: transform .3s cubic-bezier(.4, 0, .2, 1);--border-radius-sm: .125rem;--border-radius: .25rem;--border-radius-md: .375rem;--border-radius-lg: .5rem;--border-radius-xl: .75rem;--border-radius-2xl: 1rem;--border-radius-3xl: 1.5rem;--border-radius-full: 9999px}html{box-sizing:border-box;scroll-behavior:smooth}*,*:before,*:after{box-sizing:inherit}body{margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.5;color:var(--color-gray-800);background-color:#fff}.dark body{color:var(--color-gray-200);background-color:var(--color-gray-900)}.min-h-screen{min-height:100vh;overflow-x:hidden;width:100%}.container{width:100%;margin-left:auto;margin-right:auto;padding-left:1rem;padding-right:1rem;max-width:1280px}@media (min-width: 640px){.container{padding-left:1.5rem;padding-right:1.5rem}}@media (min-width: 768px){.container{padding-left:2rem;padding-right:2rem}}@media (min-width: 1024px){.container{padding-left:2.5rem;padding-right:2.5rem}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-20px)}}@keyframes pulse-soft{0%,to{opacity:.5}50%{opacity:.8}}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-.25rem)}}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.animate-float{animation:float 6s ease-in-out infinite}.animate-pulse{animation:pulse 2s cubic-bezier(.4,0,.6,1) infinite}.animate-pulse-soft{animation:pulse-soft 3s cubic-bezier(.4,0,.6,1) infinite}.animate-bounce{animation:bounce 1s infinite}.animate-spin{animation:spin 2s linear infinite}.floating-badge{position:absolute;padding:.5rem;border-radius:var(--border-radius-full);box-shadow:var(--shadow-lg);z-index:10;display:flex;align-items:center;justify-content:center}@media (min-width: 640px){.floating-badge{padding:.625rem}}.badge-icon{width:16px;height:16px}@media (min-width: 640px){.badge-icon{width:1.25rem;height:1.25rem}}.badge-top-right{top:-.5rem;right:-.5rem}@media (min-width: 640px){.badge-top-right{top:-.75rem;right:-.75rem}}.badge-bottom-left{bottom:-.5rem;left:-.5rem}@media (min-width: 640px){.badge-bottom-left{bottom:-.75rem;left:-.75rem}}.badge-middle-right{top:50%;transform:translateY(-50%);right:-.5rem}@media (min-width: 640px){.badge-middle-right{right:-1.5rem}}.badge-bottom-quarter-left{bottom:25%;left:-.5rem}@media (min-width: 640px){.badge-bottom-quarter-left{left:-1.5rem}}.badge-amber{background-color:var(--color-amber-400);color:#78350f}.badge-teal{background-color:var(--color-teal-500);color:#fff}.badge-emerald{background-color:var(--color-emerald-500);color:#fff}.badge-rose{background-color:var(--color-rose-500);color:#fff}.floating-element{position:absolute;padding:.75rem;border-radius:var(--border-radius-lg);box-shadow:var(--shadow-md);z-index:5}.floating-element-icon{font-size:1.25rem;line-height:1.75rem;display:block}@media (min-width: 640px){.floating-element-icon{font-size:1.5rem;line-height:2rem}}.hero-section{position:relative;overflow:hidden;padding:3rem 0}@media (min-width: 640px){.hero-section{padding:4rem 0}}@media (min-width: 768px){.hero-section{padding:5rem 0}}@media (min-width: 1024px){.hero-section{padding:6rem 0}}.hero-background{position:absolute;top:0;right:0;bottom:0;left:0;z-index:-10}.hero-bg-circle{position:absolute;border-radius:var(--border-radius-full);mix-blend-mode:multiply;filter:blur(3rem);opacity:.2}.hero-bg-circle-1{top:0;left:0;width:min(100%,12rem);height:min(100%,12rem);background-color:var(--color-teal-500);animation:float 6s ease-in-out infinite}.hero-bg-circle-2{top:6rem;right:0;width:min(100%,12rem);height:min(100%,12rem);background-color:var(--color-rose-500);animation:pulse 2s cubic-bezier(.4,0,.6,1) infinite}@media (min-width: 640px){.hero-bg-circle-2{top:8rem}}.hero-bg-circle-3{bottom:0;left:2rem;width:min(100%,12rem);height:min(100%,12rem);background-color:var(--color-amber-500);animation:pulse-soft 3s cubic-bezier(.4,0,.6,1) infinite}@media (min-width: 640px){.hero-bg-circle-3{left:5rem}}.hero-content{display:flex;flex-direction:column;align-items:center;gap:2rem}@media (min-width: 640px){.hero-content{gap:2.5rem}}@media (min-width: 768px){.hero-content{flex-direction:row;align-items:center}}.hero-image-container{width:100%;position:relative;margin-top:1.5rem;display:flex;justify-content:center}@media (min-width: 768px){.hero-image-container{width:50%;margin-top:0}}.hero-image-wrapper{position:relative;width:70vw;height:70vw;max-width:360px;max-height:360px}@media (min-width: 640px){.hero-image-wrapper{width:16rem;height:16rem}}@media (min-width: 768px){.hero-image-wrapper{width:18rem;height:18rem}}@media (min-width: 1024px){.hero-image-wrapper{width:20rem;height:20rem}}.hero-image-glow{position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(to right,var(--color-teal-500),var(--color-rose-500));border-radius:var(--border-radius-full);filter:blur(3rem);opacity:.2;animation:pulse 2s cubic-bezier(.4,0,.6,1) infinite}.hero-image{position:relative;width:100%;height:100%;border-radius:var(--border-radius-full);border:4px solid white;box-shadow:var(--shadow-2xl);overflow:hidden;display:flex;align-items:center;justify-content:center;background-color:#fff}.dark .hero-image{border-color:var(--color-gray-800)}.hero-img{width:100%;height:100%;object-fit:cover;object-position:center}.hero-text{width:100%;display:flex;flex-direction:column;align-items:flex-end}@media (min-width: 768px){.hero-text{width:50%}}.hero-title{font-size:1.75rem;line-height:2.25rem;font-weight:700;margin-bottom:1rem;background-clip:text;-webkit-background-clip:text;color:transparent;background-image:linear-gradient(to right,var(--color-teal-600),var(--color-rose-600));text-align:right;width:100%}@media (min-width: 640px){.hero-title{font-size:2.25rem;line-height:2.5rem;margin-bottom:1.5rem}}@media (min-width: 768px){.hero-title{font-size:2.5rem;line-height:3rem}}@media (min-width: 1024px){.hero-title{font-size:3rem;line-height:1.1}}.hero-description{font-size:1.125rem;line-height:1.75rem;margin-bottom:1.5rem;color:var(--color-gray-700);text-align:right;line-height:1.625;width:100%}.dark .hero-description{color:var(--color-gray-300)}@media (min-width: 640px){.hero-description{font-size:1.25rem;line-height:1.75rem;margin-bottom:2rem}}@media (min-width: 768px){.hero-description{font-size:1.375rem;line-height:2rem}}.hero-button-container{display:flex;justify-content:center;width:100%}@media (min-width: 768px){.hero-button-container{justify-content:flex-end}}.hero-button{position:relative;overflow:hidden;padding:.75rem 1.5rem;font-size:.875rem;line-height:1.25rem;border-radius:var(--border-radius-full);background-image:linear-gradient(to right,var(--color-teal-500),var(--color-rose-500));color:#fff;box-shadow:var(--shadow-lg);border:none;cursor:pointer;transition:transform .3s ease}.hero-button:hover{transform:translateY(-3px)}.hero-button:active{transform:translateY(1px)}@media (min-width: 640px){.hero-button{padding:1rem 2rem;font-size:1rem;line-height:1.5rem}}@media (min-width: 768px){.hero-button{padding:1rem 2.5rem;font-size:1.125rem;line-height:1.75rem}}.hero-button-content{position:relative;z-index:10;display:flex;align-items:center;gap:.5rem}.hero-button-icon{display:inline-block}.chevron-icon{width:18px;height:18px}@media (min-width: 640px){.chevron-icon{width:1.25rem;height:1.25rem}}.hero-button-overlay{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;background-image:linear-gradient(to right,var(--color-teal-600),var(--color-rose-600));opacity:0;transition:opacity .3s}.hero-button:hover .hero-button-overlay{opacity:1}.features-section{padding:3rem 0;background-image:linear-gradient(to bottom,var(--color-gray-50),#ffffff)}.dark .features-section{background-image:linear-gradient(to bottom,rgba(17,24,39,.5),var(--color-gray-900))}@media (min-width: 640px){.features-section{padding:4rem 0}}@media (min-width: 768px){.features-section{padding:5rem 0}}.section-title-container{text-align:center;margin-bottom:2.5rem}@media (min-width: 640px){.section-title-container{margin-bottom:3.5rem}}@media (min-width: 768px){.section-title-container{margin-bottom:4rem}}.section-title{font-size:1.5rem;line-height:2rem;font-weight:700;position:relative;display:inline-block;margin-bottom:.5rem}@media (min-width: 640px){.section-title{font-size:1.875rem;line-height:2.25rem}}@media (min-width: 768px){.section-title{font-size:2.25rem;line-height:2.5rem}}@media (min-width: 1024px){.section-title{font-size:2.5rem;line-height:1.1}}.section-title-content{position:relative;z-index:10;display:flex;align-items:center;gap:.5rem;justify-content:center}@media (min-width: 640px){.section-title-content{gap:.75rem}}.section-emoji{font-size:1.5rem;line-height:2rem}@media (min-width: 640px){.section-emoji{font-size:2rem;line-height:2.5rem}}@media (min-width: 768px){.section-emoji{font-size:2.25rem;line-height:2.75rem}}.section-title-underline{position:absolute;left:0;right:0;bottom:-.5rem;height:.5rem;border-radius:var(--border-radius-full);transition:width .6s ease-out;width:0;display:block}@media (min-width: 640px){.section-title-underline{height:.75rem;bottom:-.75rem}}.section-title-underline-visible{width:100%}.section-title-underline-rose{background-color:var(--color-rose-200)}.dark .section-title-underline-rose{background-color:#be123c80}.section-title-underline-cyan{background-color:#a5f3fc}.dark .section-title-underline-cyan{background-color:#0891b280}.section-title-underline-teal{background-color:var(--color-teal-200)}.dark .section-title-underline-teal{background-color:#0d948880}.section-title-underline-fuchsia{background-color:#f5d0fe}.dark .section-title-underline-fuchsia{background-color:#a21caf80}.features-grid{display:grid;grid-template-columns:repeat(1,minmax(0,1fr));gap:1.25rem}@media (min-width: 640px){.features-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:1.5rem}}@media (min-width: 1024px){.features-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:2rem}}.feature-card{border-radius:var(--border-radius-xl);overflow:hidden;box-shadow:var(--shadow-lg);background-color:#fff;border:1px solid var(--color-gray-100);transition:transform .3s ease,box-shadow .3s ease;height:100%;display:flex;flex-direction:column}.feature-card:hover{transform:translateY(-10px);box-shadow:var(--shadow-xl)}.dark .feature-card{background-color:var(--color-gray-800);border-color:var(--color-gray-700)}.feature-card-header{padding:1.25rem;color:#fff;position:relative;overflow:hidden}@media (min-width: 640px){.feature-card-header{padding:1.5rem}}.feature-teal{background-image:linear-gradient(to bottom right,var(--color-teal-400),var(--color-teal-600))}.feature-rose{background-image:linear-gradient(to bottom right,var(--color-rose-400),var(--color-rose-600))}.feature-emerald{background-image:linear-gradient(to bottom right,var(--color-emerald-400),var(--color-emerald-600))}.feature-amber{background-image:linear-gradient(to bottom right,var(--color-amber-400),var(--color-amber-600))}.feature-cyan{background-image:linear-gradient(to bottom right,#22d3ee,#0891b2)}.feature-fuchsia{background-image:linear-gradient(to bottom right,#e879f9,#a21caf)}.feature-card-title{display:flex;align-items:center;gap:.75rem}@media (min-width: 640px){.feature-card-title{gap:1rem}}.feature-card-emoji{width:2.5rem;height:2.5rem;background-color:#fff;border-radius:var(--border-radius-full);display:flex;align-items:center;justify-content:center;font-size:1.25rem;line-height:1.75rem;box-shadow:var(--shadow-lg);transition:transform .3s ease}.feature-card:hover .feature-card-emoji{transform:scale(1.1)}@media (min-width: 640px){.feature-card-emoji{width:3rem;height:3rem}}.feature-emoji-text{font-size:1.5rem;line-height:2rem}@media (min-width: 640px){.feature-emoji-text{font-size:1.875rem;line-height:2.25rem}}.feature-title{font-size:1.125rem;line-height:1.5rem;font-weight:700}@media (min-width: 640px){.feature-title{font-size:1.25rem;line-height:1.75rem}}@media (min-width: 768px){.feature-title{font-size:1.375rem;line-height:1.75rem}}.feature-card-dot{position:absolute;border-radius:var(--border-radius-full);background-color:#ffffff1a}.feature-card-dot-1{top:.75rem;left:.75rem;width:1.25rem;height:1.25rem}@media (min-width: 640px){.feature-card-dot-1{top:1rem;left:1rem;width:1.5rem;height:1.5rem}}.feature-card-dot-2{bottom:.75rem;right:.75rem;width:1.75rem;height:1.75rem}@media (min-width: 640px){.feature-card-dot-2{bottom:1rem;right:1rem;width:2rem;height:2rem}}.feature-card-body{padding:1.25rem;flex-grow:1;display:flex;flex-direction:column;justify-content:center}@media (min-width: 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640px){.chat-header-profile{gap:1rem}}.chat-avatar{width:2.25rem;height:2.25rem;border-radius:var(--border-radius-full);background-color:#fff3;display:flex;align-items:center;justify-content:center}@media (min-width: 640px){.chat-avatar{width:2.75rem;height:2.75rem}}.chat-avatar-icon{width:20px;height:20px}@media (min-width: 640px){.chat-avatar-icon{width:1.5rem;height:1.5rem}}.chat-title{font-size:.9375rem;line-height:1.375rem;font-weight:700}@media (min-width: 640px){.chat-title{font-size:1.0625rem;line-height:1.5rem}}@media (min-width: 768px){.chat-title{font-size:1.125rem;line-height:1.75rem}}.chat-status{display:flex;align-items:center;gap:.5rem}.chat-status-indicator{display:inline-block;width:.5rem;height:.5rem;background-color:#10b981;border-radius:var(--border-radius-full);animation:pulse 2s cubic-bezier(.4,0,.6,1) infinite}@media (min-width: 640px){.chat-status-indicator{width:.75rem;height:.75rem}}.chat-status-text{font-size:.75rem;line-height:1rem}@media (min-width: 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.chat-input::placeholder{color:#aebac1}.chat-tool-button{background:transparent;border:none;color:var(--whatsapp-icon-gray);cursor:pointer;display:flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:50%;transition:background-color .2s}.chat-tool-button:hover{background-color:#0000001a}.dark .chat-tool-button:hover{background-color:#ffffff1a}.chat-send-button{border:none;color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:50%;transition:all .2s}.chat-container.arabic .chat-send-button{background-color:var(--arabic-header)}.chat-container.latin .chat-send-button{background-color:var(--latin-header)}.chat-send-button:hover{filter:brightness(1.1)}.chat-send-button:disabled{background-color:#e1e1e1;cursor:not-allowed}.drawing-board-modal{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000}.drawing-board-container{background-color:#fff;width:90%;max-width:800px;height:80%;border-radius:12px;overflow:hidden;display:flex;flex-direction:column}.drawing-board-header{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;border-bottom:1px solid #e0e0e0}.drawing-board-header h3{margin:0;font-size:18px}.close-button{background:none;border:none;font-size:24px;cursor:pointer;color:#666}.drawing-board-content{flex:1;display:flex;align-items:center;justify-content:center;background-color:#f5f5f5}.drawing-board-placeholder{color:#666;font-size:18px;text-align:center}[dir=rtl] .chat-back-button{margin-right:0;margin-left:10px}[dir=rtl] .chat-avatar{margin-right:0;margin-left:15px}[dir=rtl] .message-avatar{margin-right:0;margin-left:8px}[dir=rtl] .chat-input-area{flex-direction:row-reverse;gap:12px}@media (max-width: 768px){.message-bubble{max-width:80%}.chat-input-area{padding:8px 12px;gap:8px}.chat-input-wrapper{height:40px}.chat-tool-button,.chat-send-button{width:36px;height:36px}.chat-input{font-size:14px}}@media (max-width: 480px){.chat-header{padding:0 8px}.chat-avatar{width:36px;height:36px;margin-right:10px}.chat-username{font-size:15px}.chat-status{font-size:12px}.message-bubble{max-width:85%}.chat-input-area{padding:6px 8px;gap:6px}.chat-input-wrapper{height:36px}.chat-tool-button,.chat-send-button{width:32px;height:32px}.chat-tool-button svg,.chat-send-button svg{width:18px;height:18px}.chat-input{font-size:13px}}