:root{--color-bg-primary: #0a0a0f;--color-bg-secondary: #141419;--color-bg-tertiary: #1c1c24;--color-bg-card: rgba(28, 28, 36, .6);--color-bg-nav: rgba(10, 10, 15, .8);--color-bg-hover: rgba(255, 255, 255, .05);--color-primary: #8b5cf6;--color-accent-primary: #8b5cf6;--color-accent-secondary: #ec4899;--color-accent-gradient: linear-gradient(135deg, #8b5cf6 0%, #ec4899 100%);--color-text-primary: #ffffff;--color-text-secondary: #a0a0b0;--color-text-muted: #6b6b7b;--color-border: rgba(255, 255, 255, .1);--color-border-hover: rgba(139, 92, 246, .3);--spacing-xs: .5rem;--spacing-sm: 1rem;--spacing-md: 1.5rem;--spacing-lg: 2rem;--spacing-xl: 3rem;--spacing-2xl: 4rem;--spacing-3xl: 6rem;--radius-sm: .5rem;--radius-md: 1rem;--radius-lg: 1.5rem;--radius-xl: 2rem;--shadow-sm: 0 2px 8px rgba(0, 0, 0, .2);--shadow-md: 0 4px 16px rgba(0, 0, 0, .3);--shadow-lg: 0 8px 32px rgba(0, 0, 0, .4);--shadow-glow: 0 0 40px rgba(139, 92, 246, .3);--font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-size-xs: .75rem;--font-size-sm: .875rem;--font-size-base: 1rem;--font-size-lg: 1.125rem;--font-size-xl: 1.25rem;--font-size-2xl: 1.5rem;--font-size-3xl: 2rem;--font-size-4xl: 2.5rem;--font-size-5xl: 3.5rem;--transition-fast: .15s ease-in-out;--transition-base: .25s ease-in-out;--transition-slow: .4s ease-in-out}[data-theme=light]{--color-bg-primary: #ffffff;--color-bg-secondary: #f8f9fa;--color-bg-tertiary: #f1f3f5;--color-bg-card: rgba(255, 255, 255, .8);--color-bg-nav: rgba(255, 255, 255, .8);--color-bg-hover: rgba(0, 0, 0, .05);--color-text-primary: #1a1a1a;--color-text-secondary: #4a4a4a;--color-text-muted: #6c757d;--color-border: rgba(0, 0, 0, .1);--color-border-hover: rgba(139, 92, 246, .5);--shadow-sm: 0 2px 8px rgba(0, 0, 0, .05);--shadow-md: 0 4px 16px rgba(0, 0, 0, .1);--shadow-lg: 0 8px 32px rgba(0, 0, 0, .15);--shadow-glow: 0 0 40px rgba(139, 92, 246, .2)}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:var(--font-family);font-size:var(--font-size-base);line-height:1.6;color:var(--color-text-primary);background:var(--color-bg-primary);min-height:100vh;overflow-x:hidden}h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.2;margin-bottom:var(--spacing-md)}h1{font-size:var(--font-size-5xl);background:var(--color-accent-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}h2{font-size:var(--font-size-4xl)}h3{font-size:var(--font-size-3xl)}p{margin-bottom:var(--spacing-sm);color:var(--color-text-secondary)}.container{max-width:1200px;margin:0 auto;padding:0 var(--spacing-lg)}.section{padding:var(--spacing-3xl) 0;position:relative}.nav{position:fixed;top:0;left:0;right:0;z-index:1000;background:var(--color-bg-nav);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-bottom:1px solid var(--color-border);padding:var(--spacing-md) 0}.nav-content{display:flex;justify-content:space-between;align-items:center}.logo{font-size:var(--font-size-xl);font-weight:700;background:var(--color-accent-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;text-decoration:none;display:flex;align-items:center;gap:var(--spacing-xs)}.nav-links{display:flex;gap:var(--spacing-lg);list-style:none}.nav-link{color:var(--color-text-secondary);text-decoration:none;font-weight:500;transition:color var(--transition-fast);cursor:pointer}.nav-link:hover{color:var(--color-text-primary)}.nav-mobile-toggle{display:none;align-items:center;gap:.5rem}@media (max-width: 768px){.nav-desktop{display:none!important}.nav-mobile-toggle{display:flex!important}.nav-content{justify-content:space-between}.logo{font-size:var(--font-size-lg)}}.btn{display:inline-block;padding:var(--spacing-sm) var(--spacing-lg);border-radius:var(--radius-md);font-weight:600;text-decoration:none;cursor:pointer;border:none;transition:all var(--transition-base);font-size:var(--font-size-base)}.btn-primary{background:var(--color-accent-gradient);color:#fff;box-shadow:var(--shadow-md)}.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg),var(--shadow-glow)}.btn-secondary{background:var(--color-bg-tertiary);color:var(--color-text-primary);border:1px solid var(--color-border)}.btn-secondary:hover{border-color:var(--color-border-hover);background:var(--color-bg-hover)}.btn-large{padding:var(--spacing-md) var(--spacing-xl);font-size:var(--font-size-lg);border-radius:var(--radius-lg)}.card{background:var(--color-bg-card);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--spacing-lg);transition:all var(--transition-base)}.card:hover{border-color:var(--color-border-hover);transform:translateY(-4px);box-shadow:var(--shadow-lg)}.card-icon{width:48px;height:48px;border-radius:var(--radius-md);background:var(--color-accent-gradient);display:flex;align-items:center;justify-content:center;font-size:var(--font-size-2xl);margin-bottom:var(--spacing-md)}.card-title{font-size:var(--font-size-xl);color:var(--color-text-primary);margin-bottom:var(--spacing-sm)}.card-description{color:var(--color-text-secondary);line-height:1.6}.grid{display:grid;gap:var(--spacing-lg)}.grid-2{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}.grid-3{grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}.hero{min-height:100vh;display:flex;align-items:center;justify-content:center;text-align:center;position:relative;overflow:hidden;padding-top:var(--spacing-3xl)}.hero:before{content:"";position:absolute;top:0;left:50%;transform:translate(-50%);width:1000px;height:1000px;background:radial-gradient(circle,rgba(139,92,246,.15) 0%,transparent 70%);pointer-events:none}.hero-content{position:relative;z-index:1;max-width:800px;margin:0 auto}.hero-subtitle{font-size:var(--font-size-xl);color:var(--color-text-secondary);margin-bottom:var(--spacing-xl)}.hero-buttons{display:flex;gap:var(--spacing-md);justify-content:center;flex-wrap:wrap;margin-top:var(--spacing-xl)}.feature-highlight{display:flex;align-items:center;gap:var(--spacing-xl);margin-bottom:var(--spacing-3xl)}.feature-highlight:nth-child(2n){flex-direction:row-reverse}.feature-image{flex:1;border-radius:var(--radius-lg);background:var(--color-bg-tertiary);border:1px solid var(--color-border);min-height:300px;display:flex;align-items:center;justify-content:center;font-size:var(--font-size-4xl)}.feature-content{flex:1}.download-options{display:flex;gap:var(--spacing-lg);justify-content:center;flex-wrap:wrap;margin-top:var(--spacing-xl)}.download-card{flex:1;min-width:250px;max-width:350px;text-align:center}.platform-icon{font-size:var(--font-size-4xl);margin-bottom:var(--spacing-md)}.footer{background:var(--color-bg-secondary);border-top:1px solid var(--color-border);padding:var(--spacing-xl) 0;text-align:center;color:var(--color-text-muted)}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.fade-in-up{animation:fadeInUp .6s ease-out}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}.float{animation:float 3s ease-in-out infinite}@media (max-width: 1024px){.container{padding:0 var(--spacing-md)}.grid-3{grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}}@media (max-width: 768px){h1{font-size:var(--font-size-4xl)}h2{font-size:var(--font-size-3xl)}.hero{padding-top:var(--spacing-2xl)}.hero-buttons{flex-direction:column;width:100%}.hero-buttons .btn{width:100%;justify-content:center}.feature-highlight,.feature-highlight:nth-child(2n){flex-direction:column}.nav-links{gap:var(--spacing-md);font-size:var(--font-size-sm)}.section{padding:var(--spacing-2xl) 0}.container{padding:0 var(--spacing-sm)}.btn{min-height:44px;padding:var(--spacing-sm) var(--spacing-md)}.btn-large{min-height:48px;padding:var(--spacing-md) var(--spacing-lg)}.grid-2,.grid-3{grid-template-columns:1fr}}