@import"https://fonts.googleapis.com/earlyaccess/droidarabickufi.css";:root{--primary-color: #2563eb;--primary-hover: #1d4ed8;--primary-light: #dbeafe;--secondary-color: #f59e0b;--secondary-hover: #d97706;--accent-color: #10b981;--accent-hover: #059669;--background-light: #fafafa;--background-dark: #0f0f0f;--surface-light: #ffffff;--surface-dark: #1a1a1a;--card-background-light: #ffffff;--card-background-dark: #1f1f1f;--text-primary-light: #111827;--text-primary-dark: #f9fafb;--text-secondary-light: #6b7280;--text-secondary-dark: #9ca3af;--text-muted-light: #9ca3af;--text-muted-dark: #6b7280;--border-light: #e5e7eb;--border-dark: #374151;--border-focus: var(--primary-color);--shadow-light: rgba(0, 0, 0, .1);--shadow-dark: rgba(0, 0, 0, .3);--shadow-colored: rgba(37, 99, 235, .15);--space-xs: .25rem;--space-sm: .5rem;--space-md: 1rem;--space-lg: 1.5rem;--space-xl: 2rem;--space-2xl: 3rem;--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-xl: 1rem;--radius-2xl: 1.5rem;--transition-fast: .15s ease-in-out;--transition-normal: .25s ease-in-out;--transition-slow: .35s ease-in-out}body{font-size:1rem;line-height:1.6;background-color:var(--background-light);color:var(--text-primary-light);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;transition:background-color var(--transition-normal),color var(--transition-normal)}.dark body{background-color:var(--background-dark);color:var(--text-primary-dark)}h1{font-size:clamp(2.5rem,5vw,4.5rem);line-height:1.1;font-weight:800;letter-spacing:-.025em}h2{font-size:clamp(2rem,4vw,3rem);line-height:1.2;font-weight:700;letter-spacing:-.025em}h3{font-size:clamp(1.25rem,2.5vw,1.75rem);line-height:1.3;font-weight:600}h4{font-size:1.25rem;line-height:1.4;font-weight:600}p{font-size:1rem;line-height:1.7;color:var(--text-secondary-light)}.dark p{color:var(--text-secondary-dark)}.text-muted{color:var(--text-muted-light)}.dark .text-muted{color:var(--text-muted-dark)}#heroCanvas{position:absolute;top:0;left:0;width:100%;height:100%;z-index:-1;border-radius:.75rem}.hero-content-wrapper{position:relative;overflow:hidden;border-radius:.75rem;width:auto}.dropdown:hover .dropdown-menu{display:block}.transition-all-custom{transition:all .3s ease}.ai-powered-title{background:linear-gradient(135deg,var(--primary-color) 0%,var(--secondary-color) 50%,var(--accent-color) 100%);background-size:200% 200%;animation:gradient-shift 4s ease-in-out infinite;color:transparent;background-clip:text;-webkit-text-fill-color:transparent;-webkit-background-clip:text;position:relative}@keyframes gradient-shift{0%,to{background-position:0% 50%}50%{background-position:100% 50%}}.feature-card{background-color:var(--card-background-light);transition:transform .3s ease,box-shadow .3s ease}.dark .feature-card{background-color:var(--card-background-dark)}.feature-card:hover{transform:translateY(-5px) scale(1.02);box-shadow:0 10px 15px -3px #0000001a,0 4px 6px -2px #0000000d}.dark .feature-card:hover{box-shadow:0 10px 15px -3px #0000004d,0 4px 6px -2px #00000040}section{background-color:var(--background-light)}.dark section{background-color:var(--background-dark)}footer{background-color:var(--background-light)}.dark footer{background-color:var(--background-dark)}html,body{height:100%;overflow-x:hidden}body{min-height:100vh}.spark-logo-container{width:80px;height:auto}.spark-logo{width:100%;height:100%;object-fit:contain;border-radius:6px}@keyframes fadeSlideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.animate-fade-slide-up{animation:fadeSlideUp .6s ease-out}.shimmer{position:relative;overflow:hidden;background-color:#f3f4f6}.dark .shimmer{background-color:#3a3a3a}.shimmer:after{content:"";position:absolute;top:0;left:-150px;height:100%;width:150px;background:linear-gradient(to right,transparent 0%,#e0e0e0 50%,transparent 100%);animation:shimmerMove 1.5s infinite}.dark .shimmer:after{background:linear-gradient(to right,transparent 0%,#4a4a4a 50%,transparent 100%)}@keyframes shimmerMove{0%{left:-150px}to{left:100%}}.card{background-color:var(--card-background-light);border-radius:var(--radius-xl);border:1px solid var(--border-light);box-shadow:0 1px 3px var(--shadow-light);transition:all var(--transition-normal);overflow:hidden}.dark .card{background-color:var(--card-background-dark);border-color:var(--border-dark);box-shadow:0 1px 3px var(--shadow-dark)}.card:hover{transform:translateY(-4px);box-shadow:0 10px 25px var(--shadow-light)}.dark .card:hover{box-shadow:0 10px 25px var(--shadow-dark)}.news-card{user-select:none;-webkit-user-drag:none;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;background:var(--card-background-light);border-radius:var(--radius-xl);border:1px solid var(--border-light);box-shadow:0 2px 8px var(--shadow-light);transition:all var(--transition-normal);overflow:hidden;position:relative}.dark .news-card{background-color:var(--card-background-dark);border-color:var(--border-dark);box-shadow:0 2px 8px var(--shadow-dark)}.news-card:hover{transform:translateY(-6px);box-shadow:0 12px 30px var(--shadow-light);border-color:var(--primary-color)}.dark .news-card:hover{box-shadow:0 12px 30px var(--shadow-dark)}.news-card:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--primary-color),var(--secondary-color),var(--accent-color));opacity:0;transition:opacity var(--transition-normal)}.news-card:hover:before{opacity:1}#newsCarousel{cursor:grab;scroll-behavior:smooth}#newsCarousel.cursor-grabbing{cursor:grabbing}.share-trend-btn{transition:color .3s ease}#aiArticlesCarousel{scroll-snap-type:x mandatory}#aiArticlesCarousel>div{scroll-snap-align:start}.search-input-container{position:relative}.search-input-container input{padding-right:2.5rem}.search-input-container .clear-button{position:absolute;right:.5rem;top:50%;transform:translateY(-50%);cursor:pointer;color:#ef4444}.search-input-container .clear-button:hover{color:#b91c1c}.form-input{width:100%;padding:var(--space-sm) var(--space-md);border:2px solid var(--border-light);border-radius:var(--radius-lg);background-color:var(--surface-light);color:var(--text-primary-light);font-size:.875rem;transition:all var(--transition-normal);outline:none}.dark .form-input{border-color:var(--border-dark);background-color:var(--surface-dark);color:var(--text-primary-dark)}.form-input:focus{border-color:var(--border-focus);box-shadow:0 0 0 3px #2563eb1a;transform:translateY(-1px)}.form-input::placeholder{color:var(--text-muted-light)}.dark .form-input::placeholder{color:var(--text-muted-dark)}.search-container{position:relative;max-width:28rem;margin:0 auto}.search-input{width:100%;padding:var(--space-md) var(--space-lg);padding-right:7rem;border:2px solid var(--border-light);border-radius:var(--radius-2xl);background:var(--surface-light);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);color:var(--text-primary-light);font-size:1rem;transition:all var(--transition-normal);outline:none;box-shadow:0 4px 12px var(--shadow-light)}.dark .search-input{border-color:var(--border-dark);background:var(--surface-dark);color:var(--text-primary-dark);box-shadow:0 4px 12px var(--shadow-dark)}.search-input:focus{border-color:var(--border-focus);box-shadow:0 0 0 3px #2563eb1a,0 8px 20px var(--shadow-light);transform:translateY(-2px)}.search-btn{position:absolute;right:var(--space-xs);top:50%;transform:translateY(-50%);padding:var(--space-sm) var(--space-md);background:linear-gradient(135deg,var(--primary-color),var(--primary-hover));color:#fff;border:none;border-radius:var(--radius-xl);cursor:pointer;transition:all var(--transition-normal);display:flex;align-items:center;gap:var(--space-xs)}.search-btn:hover{transform:translateY(-50%) scale(1.05);box-shadow:0 4px 12px var(--shadow-colored)}.nav-tabs{display:flex;gap:var(--space-sm);padding:var(--space-md);background:var(--surface-light);border-radius:var(--radius-xl);border:1px solid var(--border-light);box-shadow:0 2px 8px var(--shadow-light);overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;scroll-behavior:smooth}.nav-tabs::-webkit-scrollbar{display:none}.dark .nav-tabs{background:var(--surface-dark);border-color:var(--border-dark);box-shadow:0 2px 8px var(--shadow-dark)}.nav-tab{padding:var(--space-md) var(--space-lg);border-radius:var(--radius-lg);font-weight:600;font-size:.875rem;color:var(--text-secondary-light);background:transparent;border:none;cursor:pointer;transition:all var(--transition-normal);white-space:nowrap;position:relative;overflow:hidden;min-height:2.75rem;display:flex;align-items:center;justify-content:center}.dark .nav-tab{color:var(--text-secondary-dark)}.nav-tab:hover{color:var(--text-primary-light);background:var(--border-light);transform:translateY(-1px)}.dark .nav-tab:hover{color:var(--text-primary-dark);background:var(--border-dark)}.nav-tab.active{color:#fff;background:linear-gradient(135deg,var(--primary-color),var(--primary-hover));box-shadow:0 4px 12px var(--shadow-colored);transform:translateY(-2px)}.nav-tab.active:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(135deg,rgba(255,255,255,.2),transparent);pointer-events:none}.header{background:var(--surface-light);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-bottom:1px solid var(--border-light);position:sticky;top:0;z-index:50;transition:all var(--transition-normal)}.dark .header{background:var(--surface-dark);border-bottom-color:var(--border-dark)}.header-content{display:flex;align-items:center;justify-content:space-between;padding:var(--space-md) var(--space-lg);max-width:1200px;margin:0 auto}.logo-section{display:flex;align-items:center;gap:var(--space-sm)}.logo{width:3rem;height:3rem;border-radius:var(--radius-lg);box-shadow:0 2px 8px var(--shadow-light);transition:transform var(--transition-normal)}.logo:hover{transform:scale(1.05)}.logo-text h1{font-size:1.25rem;font-weight:700;margin:0;color:var(--text-primary-light)}.dark .logo-text h1{color:var(--text-primary-dark)}.logo-text p{font-size:.75rem;margin:0;opacity:.8}.dropdown{position:relative}.dropdown-trigger{display:flex;align-items:center;gap:var(--space-sm);padding:var(--space-sm) var(--space-sm);background:var(--surface-light);border:1px solid var(--border-light);border-radius:var(--radius-lg);color:var(--text-primary-light);cursor:pointer;transition:all var(--transition-normal);font-size:.875rem}.dark .dropdown-trigger{background:var(--surface-dark);border-color:var(--border-dark);color:var(--text-primary-dark)}.dropdown-trigger:hover{background:var(--border-light);transform:translateY(-1px)}.dark .dropdown-trigger:hover{background:var(--border-dark)}.dropdown-menu{position:absolute;top:calc(100% + var(--space-xs));right:0;min-width:10rem;background:var(--surface-light);border:1px solid var(--border-light);border-radius:var(--radius-lg);box-shadow:0 8px 25px var(--shadow-light);padding:var(--space-sm);z-index:50;opacity:0;visibility:hidden;transform:translateY(-10px);transition:all var(--transition-normal)}@media (max-width: 768px){.dropdown-menu{right:-1rem;left:auto;min-width:12rem;max-width:calc(100vw - 2rem)}@media (max-width: 480px){.dropdown-menu{right:-.5rem;min-width:11rem;max-width:calc(100vw - 1rem)}}}.dark .dropdown-menu{background:var(--surface-dark);border-color:var(--border-dark);box-shadow:0 8px 25px var(--shadow-dark)}.dropdown.open .dropdown-menu{opacity:1;visibility:visible;transform:translateY(0)}.dropdown-item{display:block;padding:var(--space-sm) var(--space-md);color:var(--text-primary-light);text-decoration:none;border-radius:var(--radius-md);transition:all var(--transition-fast);font-size:.875rem}.dark .dropdown-item{color:var(--text-primary-dark)}.dropdown-item:hover{background:var(--border-light);color:var(--primary-color)}.dark .dropdown-item:hover{background:var(--border-dark)}.toast{position:fixed;bottom:var(--space-lg);left:50%;transform:translate(-50%);background:var(--surface-light);color:var(--text-primary-light);padding:var(--space-md) var(--space-lg);border-radius:var(--radius-xl);border:1px solid var(--border-light);box-shadow:0 8px 25px var(--shadow-light);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);z-index:100;transition:all var(--transition-normal);max-width:90vw}.dark .toast{background:var(--surface-dark);color:var(--text-primary-dark);border-color:var(--border-dark);box-shadow:0 8px 25px var(--shadow-dark)}.toast.success{border-color:var(--accent-color);background:linear-gradient(135deg,var(--accent-color),var(--accent-hover));color:#fff}.toast.error{border-color:#ef4444;background:linear-gradient(135deg,#ef4444,#dc2626);color:#fff}.game-container{background:var(--card-background-light);border:1px solid var(--border-light);border-radius:var(--radius-2xl);padding:var(--space-2xl);box-shadow:0 8px 25px var(--shadow-light);max-width:42rem;margin:0 auto;position:relative;overflow:hidden}.dark .game-container{background:var(--card-background-dark);border-color:var(--border-dark);box-shadow:0 8px 25px var(--shadow-dark)}.game-container:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--primary-color),var(--secondary-color),var(--accent-color))}.game-question{font-size:1.125rem;font-weight:600;text-align:center;margin-bottom:var(--space-xl);color:var(--text-primary-light);line-height:1.6}.dark .game-question{color:var(--text-primary-dark)}.game-buttons{display:flex;gap:var(--space-lg);justify-content:center;margin-bottom:var(--space-xl)}.game-feedback{text-align:center;font-size:1.125rem;font-weight:600;margin-bottom:var(--space-md)}.game-score{text-align:center;color:var(--text-secondary-light);margin-bottom:var(--space-xl)}.dark .game-score{color:var(--text-secondary-dark)}@media (max-width: 768px){.header-content{padding:var(--space-sm) var(--space-md)}.logo{width:2rem;height:2rem}.logo-text h1{font-size:1rem}.logo-text p{font-size:.625rem}.nav-tabs{padding:var(--space-sm);gap:var(--space-sm);margin:0 var(--space-sm);border-radius:var(--radius-lg)}.nav-tab{padding:var(--space-md) var(--space-lg);font-size:.875rem;font-weight:600;min-height:3rem;min-width:fit-content;border-radius:var(--radius-md)}.nav-tab.active{box-shadow:0 2px 8px var(--shadow-colored);transform:none}.nav-tab:hover{transform:none}.search-input{padding:var(--space-sm) var(--space-md);padding-right:6rem;font-size:.875rem}.game-container{padding:var(--space-lg);margin:var(--space-md)}.game-buttons{flex-direction:column;gap:var(--space-md)}}@media (max-width: 480px){.nav-tabs{padding:var(--space-xs);gap:var(--space-xs);margin:0 var(--space-xs)}.nav-tab{padding:var(--space-sm) var(--space-md);font-size:.8rem;min-height:2.5rem;font-weight:500}.header-content{padding:var(--space-xs) var(--space-sm)}.logo-text h1{font-size:.75rem}.logo-text p{font-size:.5rem}}@media (prefers-reduced-motion: reduce){*{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}*:focus-visible{outline:2px solid var(--border-focus);outline-offset:2px}@media (prefers-contrast: high){:root{--border-light: #000000;--border-dark: #ffffff;--shadow-light: rgba(0, 0, 0, .5);--shadow-dark: rgba(255, 255, 255, .5)}}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-sm);padding:var(--space-sm) var(--space-lg);border-radius:var(--radius-lg);font-weight:600;font-size:.875rem;line-height:1.25;text-decoration:none;border:2px solid transparent;cursor:pointer;transition:all var(--transition-normal);position:relative;overflow:hidden;white-space:nowrap;-webkit-user-select:none;user-select:none;outline:none;min-height:2.75rem}.btn:focus-visible{outline:2px solid var(--border-focus);outline-offset:2px}.btn:disabled{opacity:.6;cursor:not-allowed;pointer-events:none}.btn-sm{padding:var(--space-xs) var(--space-md);font-size:.75rem;min-height:2rem}.btn-lg{padding:var(--space-md) var(--space-xl);font-size:1rem;min-height:3.5rem}.btn-primary{background:linear-gradient(135deg,var(--primary-color) 0%,var(--primary-hover) 100%);color:#fff;border-color:var(--primary-color);box-shadow:0 4px 12px var(--shadow-colored)}.btn-primary:hover{background:linear-gradient(135deg,var(--primary-hover) 0%,#1e40af 100%);transform:translateY(-2px);box-shadow:0 8px 20px var(--shadow-colored)}.btn-primary:active{transform:translateY(0);box-shadow:0 2px 8px var(--shadow-colored)}.btn-secondary{background-color:transparent;color:var(--primary-color);border-color:var(--primary-color);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.btn-secondary:hover{background-color:var(--primary-light);transform:translateY(-2px);box-shadow:0 4px 12px var(--shadow-light)}.dark .btn-secondary{color:var(--primary-light);border-color:var(--primary-light)}.dark .btn-secondary:hover{background-color:#2563eb1a;color:#fff}.btn-accent{background:linear-gradient(135deg,var(--accent-color) 0%,var(--accent-hover) 100%);color:#fff;border-color:var(--accent-color);box-shadow:0 4px 12px #10b98140}.btn-accent:hover{background:linear-gradient(135deg,var(--accent-hover) 0%,#047857 100%);transform:translateY(-2px);box-shadow:0 8px 20px #10b98159}.btn-ghost{background-color:transparent;color:var(--text-secondary-light);border-color:transparent}.btn-ghost:hover{background-color:var(--border-light);color:var(--text-primary-light)}.dark .btn-ghost{color:var(--text-secondary-dark)}.dark .btn-ghost:hover{background-color:var(--border-dark);color:var(--text-primary-dark)}.btn-icon{padding:var(--space-sm);min-width:2.75rem;border-radius:var(--radius-md)}.btn-icon.btn-sm{padding:var(--space-xs);min-width:2rem}.btn-loading{color:transparent}.btn-loading:after{content:"";position:absolute;width:1rem;height:1rem;border:2px solid transparent;border-top:2px solid currentColor;border-radius:50%;animation:spin 1s linear infinite;color:#fff}@keyframes spin{to{transform:rotate(360deg)}}