:root{--bg-color: #ffffff;--text-color: #1d1d1f;--text-secondary: #86868b;--accent-color: #0071e3;--nav-bg: rgba(255, 255, 255, .8);--font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--section-spacing: 120px;--container-width: 1200px;--transition-fast: .3s ease;--transition-slow: .8s cubic-bezier(.2, .8, .2, 1)}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-color);color:var(--text-color);font-family:var(--font-family);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden}a{color:inherit;text-decoration:none}ul{list-style:none}img,video{max-width:100%;display:block}.container{max-width:var(--container-width);margin:0 auto;padding:0 20px}.section{padding:var(--section-spacing) 0}.fade-in{opacity:0;transform:translateY(20px);transition:opacity var(--transition-slow),transform var(--transition-slow)}.fade-in.visible{opacity:1;transform:translateY(0)}.mobile-menu-btn{display:none}@media(max-width:768px){.desktop-menu{display:none!important}.mobile-menu-btn{display:block}.container{padding:0 20px}:root{--section-spacing: 80px}}.features-grid{display:flex;flex-direction:row;gap:60px;align-items:stretch}@media(max-width:768px){.features-grid{flex-direction:column-reverse;gap:40px;align-items:center}}