*{margin:0;padding:0;box-sizing:border-box}
body{font-family:Arial,sans-serif;line-height:1.6;color:#333;background:#f8f9fa;padding:0 10px}
.site-header{background:#041140;color:#fff;position:sticky;top:0;z-index:1000}
.header-container{display:flex;justify-content:space-between;align-items:center;padding:1rem;max-width:1200px;margin:0 auto}
.logo-container{width:160px;height:40px;flex-shrink:0}
.logo-container img{width:100%;height:100%;object-fit:contain}
.desktop-nav{display:flex;gap:2rem}
.desktop-nav a{color:#fff;text-decoration:none;font-weight:500;transition:color 0.3s}
.desktop-nav a:hover{color:#4a90e2}
.current-page{color:#4a90e2;font-weight:600}
.auth-buttons{display:flex;gap:1rem}
.btn-signup,.btn-signin{padding:0.5rem 1rem;border-radius:4px;text-decoration:none;font-weight:600;transition:background 0.3s}
.btn-signup{background:#4a90e2;color:#fff}
.btn-signin{background:transparent;color:#fff;border:1px solid #4a90e2}
.btn-signup:hover{background:#357abd}
.btn-signin:hover{background:#4a90e2}
.hamburger-menu{display:none;flex-direction:column;background:none;border:none;cursor:pointer;padding:4px}
.hamburger-menu span{width:25px;height:3px;background:#fff;margin:3px 0;transition:0.3s;border-radius:2px}
.mobile-nav{display:none;position:fixed;top:100%;left:0;width:100%;background:#041140;z-index:999;transition:top 0.3s ease}
.mobile-nav.active{top:80px}
.mobile-nav-links{padding:1rem;border-bottom:1px solid #1a4b8c}
.mobile-nav-links a{display:block;color:#fff;text-decoration:none;padding:0.75rem 0;font-weight:500;border-bottom:1px solid #1a4b8c}
.mobile-auth{padding:1rem;display:flex;gap:1rem}
.app-showcase-section{background:linear-gradient(135deg,#041140 0%,#1a4b8c 50%,#4a90e2 100%);color:#fff;padding:5rem 0;position:relative;overflow:hidden}
.app-showcase-section::before{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background:url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');pointer-events:none}
.showcase-container{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:center;position:relative;z-index:1}
.app-details h1{font-size:3rem;margin-bottom:1rem;font-weight:800;text-shadow:2px 2px 4px rgba(0,0,0,0.3)}
.app-tagline{font-size:1.3rem;margin-bottom:2rem;opacity:0.95;font-weight:300}
.app-highlights{display:flex;flex-direction:column;gap:1rem;margin-bottom:3rem}
.highlight-item{display:flex;align-items:center;gap:1rem;background:rgba(255,255,255,0.1);padding:1rem;border-radius:12px;backdrop-filter:blur(10px)}
.highlight-icon{font-size:1.5rem;width:40px;text-align:center}
.download-buttons{display:flex;gap:1.5rem;flex-wrap:wrap}
.download-btn{display:flex;align-items:center;gap:1rem;background:rgba(255,255,255,0.15);backdrop-filter:blur(20px);padding:1rem 2rem;border-radius:16px;text-decoration:none;color:#fff;transition:all 0.3s ease;border:2px solid rgba(255,255,255,0.2)}
.download-btn:hover{background:rgba(255,255,255,0.25);transform:translateY(-2px);box-shadow:0 8px 25px rgba(0,0,0,0.2)}
.btn-text{display:flex;flex-direction:column;align-items:flex-start}
.btn-small{font-size:0.85rem;opacity:0.8}
.btn-large{font-size:1.1rem;font-weight:700}
.app-preview{text-align:center}
.phone-mockup{max-width:100%;height:auto;filter:drop-shadow(0 20px 40px rgba(0,0,0,0.3));transition:transform 0.3s ease}
.phone-mockup:hover{transform:scale(1.05)}
.feature-comparison{padding:5rem 0;background:#fff}
.comparison-container{max-width:1200px;margin:0 auto}
.comparison-container h2{color:#041140;font-size:2.5rem;text-align:center;margin-bottom:1rem;font-weight:700}
.comparison-container > p{text-align:center;font-size:1.1rem;margin-bottom:3rem;color:#666;max-width:800px;margin-left:auto;margin-right:auto}
.comparison-grid{display:grid;grid-template-columns:1fr 1fr;gap:3rem}
.comparison-card{background:linear-gradient(145deg,#f8f9fa 0%,#e9ecef 100%);padding:3rem 2rem;border-radius:20px;box-shadow:0 10px 30px rgba(0,0,0,0.1);position:relative;overflow:hidden}
.comparison-card::before{content:'';position:absolute;top:0;left:0;right:0;height:5px;background:linear-gradient(90deg,#041140,#4a90e2)}
.comparison-card h3{font-size:1.5rem;margin-bottom:2rem;color:#041140;font-weight:600}
.feature-list{list-style:none;padding:0}
.feature-list li{padding:0.75rem 0;border-bottom:1px solid #e9ecef;position:relative;padding-left:2rem}
.feature-list li::before{content:'✓';position:absolute;left:0;color:#4a90e2;font-weight:bold;font-size:1.2rem}
.feature-list li:last-child{border-bottom:none}
.technical-specs{padding:5rem 0;background:linear-gradient(135deg,#f8f9fa 0%,#e9ecef 100%)}
.specs-container{max-width:1200px;margin:0 auto}
.specs-container h2{color:#041140;font-size:2.5rem;text-align:center;margin-bottom:1rem;font-weight:700}
.specs-container > p{text-align:center;font-size:1.1rem;margin-bottom:3rem;color:#666;max-width:800px;margin-left:auto;margin-right:auto}
.specs-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:2rem}
.spec-category{background:#fff;padding:2.5rem;border-radius:16px;box-shadow:0 5px 20px rgba(0,0,0,0.08);border-left:5px solid #4a90e2}
.spec-category h3{color:#041140;font-size:1.4rem;margin-bottom:1.5rem;font-weight:600}
.spec-details{display:flex;flex-direction:column;gap:1rem}
.spec-item{display:flex;justify-content:space-between;align-items:center;padding:0.75rem 0;border-bottom:1px solid #f1f3f4}
.spec-item:last-child{border-bottom:none}
.spec-label{font-weight:500;color:#666}
.spec-value{font-weight:600;color:#041140;background:#f8f9fa;padding:0.25rem 0.75rem;border-radius:6px;font-size:0.9rem}
.app-features-detailed{padding:5rem 0;background:#fff}
.features-container{max-width:1200px;margin:0 auto}
.features-container h2{color:#041140;font-size:2.5rem;text-align:center;margin-bottom:1rem;font-weight:700}
.features-container > p{text-align:center;font-size:1.1rem;margin-bottom:3rem;color:#666;max-width:800px;margin-left:auto;margin-right:auto}
.features-showcase{display:flex;flex-direction:column;gap:3rem}
.feature-highlight{display:grid;grid-template-columns:auto 1fr;gap:2rem;align-items:flex-start;background:linear-gradient(145deg,#f8f9fa 0%,#e9ecef 100%);padding:2.5rem;border-radius:20px;box-shadow:0 8px 25px rgba(0,0,0,0.1)}
.feature-visual{font-size:3rem;width:80px;height:80px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#041140,#4a90e2);border-radius:20px;color:#fff;box-shadow:0 5px 15px rgba(4,17,64,0.3)}
.feature-content h3{color:#041140;font-size:1.4rem;margin-bottom:1rem;font-weight:600}
.feature-content p{margin-bottom:1rem;color:#555;line-height:1.8}
.feature-content p:last-child{margin-bottom:0}
.installation-guide{padding:5rem 0;background:linear-gradient(135deg,#041140 0%,#1a4b8c 100%);color:#fff}
.guide-container{max-width:1200px;margin:0 auto}
.guide-container h2{font-size:2.5rem;text-align:center;margin-bottom:1rem;font-weight:700}
.guide-container > p{text-align:center;font-size:1.1rem;margin-bottom:3rem;opacity:0.9;max-width:800px;margin-left:auto;margin-right:auto}
.installation-steps{display:grid;grid-template-columns:1fr 1fr;gap:4rem}
.platform-guide h3{font-size:1.8rem;margin-bottom:2rem;color:#4a90e2;font-weight:600}
.step-list{display:flex;flex-direction:column;gap:2rem}
.step-item{display:flex;gap:1.5rem;align-items:flex-start}
.step-number{width:40px;height:40px;border-radius:50%;background:#4a90e2;color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;flex-shrink:0}
.step-content h4{margin-bottom:0.5rem;font-size:1.1rem;color:#4a90e2}
.step-content p{opacity:0.9;line-height:1.6}
.app-security{padding:5rem 0;background:#fff}
.security-container{max-width:1200px;margin:0 auto}
.security-container h2{color:#041140;font-size:2.5rem;text-align:center;margin-bottom:1rem;font-weight:700}
.security-container > p{text-align:center;font-size:1.1rem;margin-bottom:3rem;color:#666;max-width:800px;margin-left:auto;margin-right:auto}
.security-features{display:grid;gap:2.5rem}
.security-item{background:linear-gradient(145deg,#f8f9fa 0%,#e9ecef 100%);padding:3rem;border-radius:20px;box-shadow:0 8px 25px rgba(0,0,0,0.1);border-left:5px solid #4a90e2}
.security-item h3{color:#041140;font-size:1.4rem;margin-bottom:1.5rem;font-weight:600}
.security-item p{margin-bottom:1rem;color:#555;line-height:1.8}
.security-item p:last-child{margin-bottom:0}
.troubleshooting{padding:5rem 0;background:linear-gradient(135deg,#f8f9fa 0%,#e9ecef 100%)}
.troubleshooting-container{max-width:1200px;margin:0 auto}
.troubleshooting-container h2{color:#041140;font-size:2.5rem;text-align:center;margin-bottom:1rem;font-weight:700}
.troubleshooting-container > p{text-align:center;font-size:1.1rem;margin-bottom:3rem;color:#666;max-width:800px;margin-left:auto;margin-right:auto}
.problem-solutions{display:grid;gap:2rem}
.problem-item{background:#fff;padding:2.5rem;border-radius:16px;box-shadow:0 5px 20px rgba(0,0,0,0.08);border-left:5px solid #041140}
.problem-item h3{color:#041140;font-size:1.3rem;margin-bottom:1rem;font-weight:600}
.problem-item p{margin-bottom:1rem;color:#555;line-height:1.8}
.problem-item p:last-child{margin-bottom:0}
.app-updates{padding:5rem 0;background:#fff}
.updates-container{max-width:1200px;margin:0 auto}
.updates-container h2{color:#041140;font-size:2.5rem;text-align:center;margin-bottom:1rem;font-weight:700}
.updates-container > p{text-align:center;font-size:1.1rem;margin-bottom:3rem;color:#666;max-width:800px;margin-left:auto;margin-right:auto}
.update-info{display:grid;gap:2.5rem}
.update-category{background:linear-gradient(145deg,#f8f9fa 0%,#e9ecef 100%);padding:3rem;border-radius:20px;box-shadow:0 8px 25px rgba(0,0,0,0.1);border-left:5px solid #4a90e2}
.update-category h3{color:#041140;font-size:1.4rem;margin-bottom:1.5rem;font-weight:600}
.update-category p{margin-bottom:1rem;color:#555;line-height:1.8}
.update-category p:last-child{margin-bottom:0}
.site-footer{background:#041140;color:#fff;padding:3rem 0 1rem 0;margin-top:4rem}
.footer-content{max-width:1200px;margin:0 auto}
.footer-section{margin-bottom:2rem}
.footer-section h4{font-size:1.1rem;margin-bottom:1rem;color:#4a90e2;padding-left:10px}
.payment-icons,.provider-logos{display:flex;flex-wrap:wrap;gap:1rem;align-items:center}
.payment-icons img,.provider-logos img{border-radius:4px;opacity:0.9;transition:opacity 0.3s;padding-left:10px}
.payment-icons img:hover,.provider-logos img:hover{opacity:1}
.footer-bottom{border-top:1px solid #1a4b8c;padding-top:1rem;text-align:center;color:#ccc}
@media (max-width:1080px){
.desktop-nav,.desktop-auth{display:none}
.hamburger-menu{display:flex}
.mobile-nav{display:block}
.showcase-container{grid-template-columns:1fr;text-align:center;gap:3rem}
.app-details h1{font-size:2.5rem}
.comparison-grid{grid-template-columns:1fr}
.specs-grid{grid-template-columns:1fr}
.installation-steps{grid-template-columns:1fr}
}
@media (max-width:768px){
.header-container{padding:0.75rem}
.app-details h1{font-size:2rem}
.app-tagline{font-size:1.1rem}
.download-buttons{justify-content:center}
.feature-highlight{grid-template-columns:1fr;text-align:center;gap:1.5rem}
.feature-visual{margin:0 auto}
.step-item{flex-direction:column;text-align:center}
.step-number{margin:0 auto}
}
@media (max-width:480px){
.app-details h1{font-size:1.8rem}
.highlight-item{flex-direction:column;text-align:center}
.download-btn{flex-direction:column;text-align:center;gap:0.5rem}
.comparison-card{padding:2rem 1.5rem}
.spec-category{padding:2rem 1.5rem}
.security-item{padding:2rem 1.5rem}
.problem-item{padding:2rem 1.5rem}
.update-category{padding:2rem 1.5rem}
.mobile-auth{flex-direction:column}
}
@media (max-width:320px){
.logo-container{width:120px;height:30px}
.app-details h1{font-size:1.5rem}
.showcase-container{gap:2rem}
.specs-grid{grid-template-columns:1fr}
.payment-icons img,.provider-logos img{width:32px;height:auto}
}