:root{--font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;--color-bg: #f5f5f7;--color-surface: #ffffff;--color-text: #1d1d1f;--color-text-secondary: #6e6e73;--color-accent: #000000;--color-accent-hover: #333333;--gradient-primary: linear-gradient(135deg, #1d1d1f 0%, #434344 100%);--spacing-sm: .75rem;--spacing-md: 1.5rem;--spacing-lg: 3rem;--spacing-xl: 8rem;--container-width: 1080px;--border-radius: 20px;--shadow-sm: 0 4px 12px rgba(0, 0, 0, .04);--shadow-md: 0 12px 30px rgba(0, 0, 0, .06);--shadow-lg: 0 24px 60px rgba(0, 0, 0, .1)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);background-color:var(--color-bg);color:var(--color-text);line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}h1,h2,h3,h4,h5,h6{color:var(--color-text);font-weight:600;letter-spacing:-.02em;margin-bottom:var(--spacing-md)}h1{font-size:3.5rem;line-height:1.1;font-weight:600}h2{font-size:2.5rem;font-weight:600}h3{font-size:1.5rem;font-weight:500}p{color:var(--color-text-secondary);font-size:1.125rem;line-height:1.6;font-weight:400;max-width:70ch}a{color:var(--color-text);text-decoration:none;font-weight:500;transition:all .2s ease}a:hover{opacity:.7}img{max-width:100%;display:block}.container{max-width:var(--container-width);margin:0 auto;padding:0 var(--spacing-md)}.btn{display:inline-block;padding:14px 28px;background:var(--color-text);color:#fff;border:none;border-radius:980px;font-size:16px;font-weight:500;cursor:pointer;transition:all .3s cubic-bezier(.25,.1,.25,1);text-decoration:none!important}.btn:hover{transform:scale(1.02);background:#333;box-shadow:var(--shadow-md);color:#fff;opacity:1}.btn-primary{background:var(--color-text)}.btn-primary:hover{background:#000}.btn-outline{background:transparent;border:1px solid var(--color-text);color:var(--color-text)}.btn-outline:hover{background:var(--color-text);color:#fff}.btn-secondary{background:#0000000d;color:var(--color-text);border:1px solid rgba(0,0,0,.1)}.btn-secondary:hover{background:#0000001a;color:#000;transform:scale(1.02)}.section{padding:var(--spacing-xl) 0}.glass{background:#fffc;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid rgba(0,0,0,.05)}.card{background:var(--color-surface);border-radius:var(--border-radius);padding:2.5rem;box-shadow:var(--shadow-sm);transition:all .3s ease;border:1px solid rgba(0,0,0,.02)}.card:hover{box-shadow:var(--shadow-md);transform:translateY(-4px)}.text-gradient{background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.fade-in-up{animation:fadeInUp .8s cubic-bezier(.16,1,.3,1) forwards;opacity:0}.delay-1{animation-delay:.1s}.delay-2{animation-delay:.2s}.delay-3{animation-delay:.3s}.delay-4{animation-delay:.4s}