:root{--primary-color:#0066ff;--primary-hover:#0047b3;--dark-bg:#001f4d;--light-text:#e6f0ff;--gray-light:#99b3cc;--font-family:'Poppins',sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);background-color:var(--dark-bg);color:var(--light-text);line-height:1.6;min-height:100vh;display:flex;flex-direction:column}.container{max-width:1200px;padding:0 1.5rem;margin:0 auto;width:100%}.flex{display:flex}.flex-between{display:flex;justify-content:space-between;align-items:center}.sticky-header{position:sticky;top:0;background-color:#003080;padding:1rem 0;z-index:1000;box-shadow:0 2px 6px rgba(0,70,255,.4);transition:background-color .3s ease}.logo{width:130px;height:auto;cursor:pointer;transition:transform .3s ease}.logo:hover{transform:scale(1.05)}.nav-list{list-style:none;gap:2rem}.nav-list.flex{align-items:center}.nav-link{color:var(--light-text);text-decoration:none;font-weight:600;font-size:1rem;position:relative;padding:.25rem 0;transition:color .3s ease}.nav-link::after{content:"";position:absolute;width:0;height:2px;bottom:0;left:0;background-color:var(--primary-color);transition:width .3s ease}.nav-link:hover,.nav-link:focus{color:var(--primary-color)}.nav-link:hover::after,.nav-link:focus::after{width:100%}.has-submenu{position:relative}.submenu{position:absolute;top:120%;left:0;background-color:#003080;border-radius:8px;min-width:160px;display:none;flex-direction:column;padding:.5rem 0;box-shadow:0 2px 8px rgba(0,70,255,.5);z-index:2000}.has-submenu:hover .submenu,.has-submenu:focus-within .submenu{display:flex}.submenu .nav-link{padding:.5rem 1rem;font-weight:400}.submenu .nav-link:hover,.submenu .nav-link:focus{background-color:var(--primary-hover);color:var(--light-text)}.btn-primary{background-color:var(--primary-color);color:var(--light-text);border:none;padding:.65rem 1.8rem;font-weight:700;font-size:1rem;border-radius:35px;cursor:pointer;transition:background-color .3s ease,transform .2s ease;user-select:none;box-shadow:0 0 8px var(--primary-color)}.btn-primary:hover,.btn-primary:focus{background-color:var(--primary-hover);transform:scale(1.05);outline:none;box-shadow:0 0 16px var(--primary-hover)}.btn-secondary{background-color:var(--primary-color);color:var(--light-text);border:none;padding:.75rem 2.5rem;border-radius:35px;font-weight:700;font-size:1.1rem;cursor:pointer;transition:background-color .3s ease,transform .2s ease,box-shadow .3s ease;box-shadow:0 0 12px var(--primary-color);user-select:none;text-decoration:none;display:inline-block;text-align:center}.btn-secondary:hover,.btn-secondary:focus{background-color:var(--primary-hover);box-shadow:0 0 25px var(--primary-hover);transform:scale(1.1);outline:none}.btn-lg{padding:1rem 2.8rem;font-size:1.3rem}.btn-xl{padding:1.3rem 3.5rem;font-size:1.5rem}main{flex:1;padding-bottom:4rem}.hero{padding:4rem 0;gap:3rem;align-items:center;flex-wrap:wrap}.hero-text{flex:1 1 400px}.hero-text h1{font-size:2.5rem;font-weight:700;line-height:1.2;margin-bottom:1rem;color:var(--primary-color)}.hero-subtitle{font-weight:400;font-size:1.2rem;margin-bottom:2rem;color:var(--gray-light);max-width:450px}.hero-image{flex:1 1 300px;max-width:350px;display:flex;justify-content:center}.hero-image img{max-width:100%;height:auto;border-radius:15px;transition:transform .3s ease}.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:2.5rem;padding-bottom:4rem}.feature-item{background-color:#002366;padding:2rem 1.5rem;border-radius:15px;box-shadow:0 0 6px #0047b3aa;text-align:center;cursor:default;user-select:none;transition:box-shadow .3s ease}.feature-item:hover{box-shadow:0 0 12px var(--primary-color)}.feature-icon{width:70px;margin-bottom:1rem}.feature-item h3{font-weight:600;margin-bottom:.8rem;font-size:1.4rem;color:var(--primary-color)}.feature-item p{color:var(--gray-light);font-weight:300;font-size:1rem}.security{margin-bottom:4rem}.security-content{gap:2rem;flex-wrap:wrap;align-items:center;display:flex}.security-image img{max-width:250px;width:100%;height:auto}.security-text{flex:1 1 400px;color:var(--light-text)}.security-text p{margin-bottom:1rem;font-size:1.1rem}.security-text ul{list-style:disc inside;padding-left:0;font-size:1rem;color:var(--gray-light)}.getting-started{margin-bottom:4rem}.steps-list{list-style:decimal inside;padding-left:0;max-width:600px;margin:1rem auto 0 auto}.steps-list li{margin-bottom:1.5rem;font-size:1.1rem;color:var(--light-text)}.download{margin-bottom:4rem;text-align:center}.download-buttons{gap:1.5rem;flex-wrap:wrap;justify-content:center;margin-top:1rem;display:flex}.faq details{background-color:#002366;padding:1rem 1.5rem;border-radius:10px;margin-bottom:1rem;cursor:pointer}.faq summary{font-weight:600;font-size:1.1rem;outline:none}.faq p{margin-top:.5rem;color:var(--gray-light);font-weight:400;font-size:1rem}.blog{margin-bottom:4rem}.blog-post{background-color:#002366;padding:1.5rem;border-radius:12px;margin-bottom:1.5rem}.blog-post h3{margin-bottom:.5rem;color:var(--primary-color)}.blog-post p{color:var(--gray-light);font-size:1rem;margin-bottom:.5rem}.read-more{color:var(--primary-color);text-decoration:none;font-weight:600}.read-more:hover,.read-more:focus{text-decoration:underline}.testimonial{background:#003080;padding:3rem 2rem;border-radius:15px;box-shadow:0 0 16px #0047b3aa;color:var(--light-text);max-width:800px;margin:0 auto 4rem auto;text-align:center;user-select:none}.testimonial h2{font-weight:700;margin-bottom:1.5rem;font-size:2rem;color:var(--primary-color)}.testimonial blockquote{font-style:italic;margin-bottom:1rem;font-size:1.25rem;line-height:1.5;position:relative}.testimonial blockquote::before{content:"“";font-size:3rem;color:var(--primary-color);position:absolute;left:-.6rem;top:-.4rem;opacity:.3;user-select:none}.testimonial footer{font-weight:600;font-size:1rem;color:var(--gray-light)}.contact{margin-bottom:4rem;max-width:600px;margin-left:auto;margin-right:auto;text-align:center}.contact-form{display:flex;flex-direction:column;gap:1rem;margin-top:1rem}.contact-form label{font-weight:600;text-align:left;color:var(--primary-color)}.contact-form input,.contact-form textarea{padding:.7rem 1rem;border-radius:8px;border:none;font-size:1rem;font-family:var(--font-family);resize:vertical}.contact-form input:focus,.contact-form textarea:focus{outline:2px solid var(--primary-color);outline-offset:2px}.call-to-action{background-color:#003080;border-radius:15px;padding:3rem 2rem;box-shadow:0 0 16px #0047b3aa;text-align:center;margin-bottom:4rem;color:var(--light-text);max-width:700px;margin-left:auto;margin-right:auto;user-select:none}.call-to-action h2{font-weight:700;font-size:2rem;margin-bottom:1rem;color:var(--primary-color)}.call-to-action p{font-weight:400;font-size:1.1rem;margin-bottom:2rem;color:var(--gray-light)}.footer{background-color:#002060;padding:1.5rem 2rem;text-align:center;font-size:.9rem;color:var(--gray-light);user-select:none;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem}.social-links a{color:var(--primary-color);margin-left:1rem;text-decoration:none;font-weight:600}.social-links a:hover,.social-links a:focus{text-decoration:underline}@media (max-width:991px){.hero{flex-direction:column;text-align:center}.hero-image{margin-top:2rem}.nav-list{gap:1.2rem}.footer{flex-direction:column;text-align:center}}@media (max-width:600px){.nav-list{display:none}.sticky-header{padding:1rem}.logo{width:110px}.btn-primary{padding:.5rem 1.3rem;font-size:.9rem}.hero-text h1{font-size:2rem}.hero-subtitle{font-size:1rem;max-width:100%}.feature-item{padding:1.5rem 1rem}.feature-icon{width:55px}.btn-secondary{width:100%;padding:1rem 0;font-size:1.1rem;border-radius:10px}.header-buttons{flex-direction:column;gap:.7rem}.logo.small-logo{width:70px}.hero-image{margin-top:2rem;max-width:280px}.hero-image img{width:100%}}.logo.small-logo{width:80px;transition:transform .3s ease}.header-buttons{display:flex;gap:1rem;align-items:center}