:root{--color-primary: #2563eb;--color-primary-dark: #1d4ed8;--color-text: #1f2937;--color-text-light: #6b7280;--color-background: #ffffff;--color-background-alt: #f9fafb;--color-border: #e5e7eb;--spacing-xs: .5rem;--spacing-sm: 1rem;--spacing-md: 1.5rem;--spacing-lg: 2rem;--spacing-xl: 3rem;--spacing-2xl: 4rem;--max-width: 1200px;--header-height: 70px;--font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px}body{font-family:var(--font-family);color:var(--color-text);background-color:var(--color-background);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}h1,h2,h3,h4,h5,h6{line-height:1.2;font-weight:600;color:var(--color-text)}h1{font-size:2.5rem;margin-bottom:var(--spacing-md)}h2{font-size:2rem;margin-bottom:var(--spacing-md)}h3{font-size:1.5rem;margin-bottom:var(--spacing-sm)}p{margin-bottom:var(--spacing-sm)}a{color:var(--color-primary);text-decoration:none;transition:color .2s}a:hover{color:var(--color-primary-dark)}ul,ol{list-style-position:inside;margin-bottom:var(--spacing-sm)}img{max-width:100%;height:auto;display:block}.container{max-width:var(--max-width);margin:0 auto;padding:0 var(--spacing-md)}.section{padding:var(--spacing-2xl) 0}.text-center{text-align:center}.btn{display:inline-block;padding:var(--spacing-sm) var(--spacing-lg);background-color:var(--color-primary);color:#fff;border:none;border-radius:4px;font-size:1rem;font-weight:500;cursor:pointer;transition:background-color .2s}.btn:hover{background-color:var(--color-primary-dark);color:#fff}.btn-outline{background-color:transparent;color:var(--color-primary);border:2px solid var(--color-primary)}.btn-outline:hover{background-color:var(--color-primary);color:#fff}@media(max-width:768px){h1{font-size:2rem}h2{font-size:1.75rem}h3{font-size:1.25rem}.section{padding:var(--spacing-xl) 0}}