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.feature-item{direction:ltr}.feature-content:before{display:none}h3.feature-headline-large{font-size:1.7rem}.pricing-grid{grid-template-columns:1fr}.pricing-card{margin-bottom:2rem}.pricing-card.featured{transform:scale(1)}.page-with-sidebar{flex-direction:column;gap:2rem}.sidebar-nav{position:static;width:100%;flex-basis:auto}.sidebar-nav ul{display:flex;overflow-x:auto;padding-bottom:1rem;border-bottom:1px solid var(--border-color)}.sidebar-nav li{white-space:nowrap;margin-bottom:0}.footer-main{flex-direction:column}.footer-links-group{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem;width:100%;margin-top:2rem}}@media (max-width:768px){.main-nav{display:none}body.nav-open .site-header{background-color:var(--background-color);backdrop-filter:none;-webkit-backdrop-filter:none;box-shadow:none;border-bottom:none}body.nav-open 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h1{font-size:1.4rem}section{padding:5rem 0}.section-header h2,.section-header h3{font-size:2rem}.powerful-features-list{grid-template-columns:1fr}.footer-main{text-align:left}.footer-links-group{grid-template-columns:1fr}.page-content{padding:2rem}.page-content h1{font-size:2.2rem}}.modal-overlay{position:fixed;inset:0;background-color:var(--shadow-overlay);z-index:1000;animation:fadeIn .2s ease-out}.modal-container{position:fixed;inset:0;z-index:1001;display:flex;align-items:center;justify-content:center;padding:1rem}.modal-content{background-color:var(--background-color);border-radius:12px;padding:3rem 2rem;max-width:400px;width:100%;text-align:center;box-shadow:var(--shadow-xl);animation:slideUp .3s ease-out}.modal-icon-success{margin:0 auto 1.5rem;animation:scaleIn .4s ease-out .1s 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