:root{--color-background:#17171A;--color-surface:#2C2F36;--color-primary:#61DBFB;--color-primary-foreground:#202020;--color-secondary:#805AD5;--color-text-primary:#FFF;--color-text-secondary:#A3A3A3;--font-headings:'Burbank Big Condensed',sans-serif;--font-body:'Roboto',sans-serif;--spacing-sm:.5rem;--spacing-md:1rem;--spacing-lg:1.5rem;--spacing-xl:2.5rem;--border-radius-sm:.25rem;--border-radius-md:.5rem;--border-radius-lg:1rem;--box-shadow-default:0 8px 15px rgba(0,0,0,0.3),0 2px 4px rgba(0,0,0,0.1)}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{background-color:var(--color-background);color:var(--color-text-primary);font-family:var(--font-body);line-height:1.6;font-size:16px}h1,h2,h3,h4{font-family:var(--font-headings);color:var(--color-text-primary);font-weight:700;letter-spacing:1px}h1{font-size:clamp(2.5rem,5vw+1rem,4rem);line-height:1.1}h2{font-size:clamp(2rem,4vw+1rem,3rem);line-height:1.2;text-align:center;margin-bottom:var(--spacing-lg)}h3{font-size:clamp(1.25rem,2vw+0.5rem,1.75rem);color:var(--color-primary);margin-bottom:var(--spacing-sm)}h4{font-size:1.1rem}p{color:var(--color-text-secondary);margin-bottom:var(--spacing-md);max-width:75ch}a{color:var(--color-primary);text-decoration:none;transition:color .3s ease}a:hover{color:var(--color-text-primary)}.container{width:90%;max-width:1200px;margin:0 auto}section{padding:var(--spacing-xl) 0}.btn-primary{display:inline-block;background-color:var(--color-primary);color:var(--color-primary-foreground);padding:.75rem 1.5rem;border-radius:var(--border-radius-md);font-family:var(--font-headings);font-weight:bold;font-size:1.1rem;text-transform:uppercase;letter-spacing:1px;border:none;cursor:pointer;transition:filter .3s ease,transform .2s ease}.btn-primary:hover{color:var(--color-primary-foreground);filter:brightness(90%);transform:translateY(-2px)}.card{background-color:var(--color-surface);border-radius:var(--border-radius-lg);padding:var(--spacing-lg);box-shadow:var(--box-shadow-default);transition:transform .3s ease}.card:hover{transform:translateY(-5px)}.main-header{padding:var(--spacing-md) 0;position:sticky;top:0;background-color:rgba(23,23,26,0.85);backdrop-filter:blur(10px);z-index:1000}.header-content{display:flex;justify-content:space-between;align-items:center}.logo{font-family:var(--font-headings);font-size:2rem;font-weight:700;color:var(--color-primary);letter-spacing:1.5px}.nav-menu{list-style:none;display:flex;gap:var(--spacing-lg)}.nav-menu a{font-family:var(--font-body);font-weight:bold;color:var(--color-text-primary)}.nav-menu a:hover{color:var(--color-primary)}.nav-toggle{display:none;background:none;border:none;cursor:pointer}.nav-toggle .hamburger-icon{stroke:var(--color-text-primary);width:30px;height:30px}#hero{padding:4rem 0;text-align:center}#hero h1{max-width:20ch;margin:0 auto var(--spacing-md)}#hero p{font-size:1.1rem;max-width:60ch;margin:0 auto var(--spacing-lg)}.features-grid{display:grid;gap:var(--spacing-lg);grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}.features-grid .card h3{color:var(--color-text-primary)}#about .container{display:flex;flex-direction:column;align-items:center;text-align:center}#about p{margin-bottom:var(--spacing-lg)}.testimonials-grid{display:grid;gap:var(--spacing-lg);grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}.testimonial-card blockquote{font-style:italic;border-left:3px solid var(--color-secondary);padding-left:var(--spacing-md);margin-bottom:var(--spacing-md);color:var(--color-text-secondary)}.testimonial-card h3{color:var(--color-text-primary);margin-bottom:0}.testimonial-card footer{font-size:.9rem;color:var(--color-secondary);font-weight:bold}.faq-container{max-width:800px;margin:0 auto}.faq-item{background-color:var(--color-surface);border-radius:var(--border-radius-md);margin-bottom:var(--spacing-md);border:1px solid rgba(255,255,255,0.1)}.faq-item summary{padding:var(--spacing-md) var(--spacing-lg);font-family:var(--font-headings);font-size:1.2rem;font-weight:bold;cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;color:var(--color-text-primary)}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary::after{content:'+';font-size:1.8rem;color:var(--color-primary);transition:transform .3s ease}.faq-item[open] summary::after{transform:rotate(45deg)}.faq-item div{padding:0 var(--spacing-lg) var(--spacing-lg);color:var(--color-text-secondary)}#cta{background-color:var(--color-surface);text-align:center}#cta p{max-width:60ch;margin:0 auto var(--spacing-lg);font-size:1.2rem;color:var(--color-text-primary)}.main-footer{padding:var(--spacing-lg) 0 var(--spacing-xl) 0;text-align:center;color:var(--color-text-secondary)}.footer-content{display:flex;flex-direction:column;align-items:center;gap:var(--spacing-md)}.social-links{display:flex;gap:var(--spacing-lg)}.social-links a{color:var(--color-text-secondary);transition:color .3s ease}.social-links a:hover{color:var(--color-primary)}.social-links svg{width:24px;height:24px;fill:currentColor}@media(max-width:768px){.nav-toggle{display:block}.nav-menu{display:none;flex-direction:column;position:absolute;top:70px;right:0;width:100%;background-color:var(--color-surface);padding:var(--spacing-lg) 0;text-align:center;box-shadow:var(--box-shadow-default)}.nav-menu.active{display:flex}.nav-menu li{margin:var(--spacing-md) 0}}@media(min-width:769px){.features-grid{grid-template-columns:repeat(4,1fr)}.testimonials-grid{grid-template-columns:repeat(2,1fr)}@media(min-width:1024px){.testimonials-grid{grid-template-columns:repeat(2,1fr)}}}