.landing-container{min-height:100vh;background-color:#ffffff;padding:120px 40px 80px;display:flex;flex-direction:column;align-items:center;justify-content:center}.landing-nav{width:100%;position:fixed;top:0;left:0;background-color:#ffffff;border-bottom:1px solid #e0e0e0;z-index:1000;box-shadow:0 2px 4px rgba(0,0,0,.05)}.nav-container{max-width:1400px;margin:0 auto;padding:15px 40px;justify-content:space-between;gap:40px}.nav-container,.nav-logo{display:flex;align-items:center}.nav-logo{gap:12px;text-decoration:none;color:#333;font-weight:600;font-size:1.25rem;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;transition:opacity .2s ease}.nav-logo:hover{opacity:.8}.nav-logo img,.nav-logo-text{display:block}.nav-links{display:flex;gap:40px;flex-wrap:wrap;justify-content:center}.mobile-menu-toggle{display:none;background:none;border:none;cursor:pointer;padding:8px;z-index:1001}.hamburger{display:flex;flex-direction:column;justify-content:space-around;width:24px;height:24px;background:transparent;border:none;cursor:pointer;padding:0}.hamburger span{width:24px;height:3px;background-color:#333;border-radius:3px;transition:all .3s ease;transform-origin:center}.hamburger.active span:first-child{transform:rotate(45deg) translate(8px,8px)}.hamburger.active span:nth-child(2){opacity:0}.hamburger.active span:nth-child(3){transform:rotate(-45deg) translate(7px,-7px)}.nav-link{color:#333;text-decoration:none;font-size:1rem;font-weight:500;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;transition:color .2s ease;padding:8px 0}.nav-link:hover{color:#667eea}.landing-content{max-width:1400px;width:100%;display:grid;grid-template-columns:1fr 1fr;grid-gap:80px;gap:80px;align-items:center}.landing-left{display:flex;flex-direction:column;gap:40px}.app-header{gap:20px;margin-bottom:8px}.app-header,.app-logo{display:flex;align-items:center}.app-logo{flex-shrink:0}.app-logo img{max-width:120px;height:auto}.app-writeup{display:flex;flex-direction:column;gap:20px}.app-title{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-size:3.5rem;font-weight:800;line-height:1.1;color:#333;margin:0;letter-spacing:-.02em}.app-description{font-size:1.125rem;color:#666;line-height:1.8;margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}.download-buttons{display:flex;flex-direction:row;flex-wrap:wrap;gap:16px;margin-top:8px}.download-btn{display:flex;align-items:center;gap:16px;background-color:#000000;color:#ffffff;padding:14px 24px;border-radius:12px;text-decoration:none;transition:all .2s ease;flex:1 1;min-width:200px}.download-btn:hover{background-color:#333;transform:translateY(-2px);box-shadow:0 4px 12px rgba(0,0,0,.2)}.download-btn svg{width:28px;height:28px;flex-shrink:0}.btn-text{display:flex;flex-direction:column;line-height:1.2}.btn-text-small{font-size:11px;font-weight:400;opacity:.9}.btn-text-large{font-size:18px;font-weight:600;letter-spacing:.3px}.landing-right{display:flex;justify-content:center;align-items:center}.app-image,.landing-right img{max-width:100%;height:auto;object-fit:cover;filter:drop-shadow(0 20px 40px rgba(0,0,0,.15))}.landing-footer{width:100%;text-align:center;padding:40px 20px 20px;margin-top:60px;border-top:1px solid #e0e0e0}.landing-footer p{margin:0;color:#666;font-size:.9rem;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}.page-content{max-width:1000px;width:100%;margin:0 auto;padding:40px 20px}.page-header{margin-bottom:40px;text-align:center}.page-body{display:flex;flex-direction:column;gap:40px}.content-section{background:white;padding:32px;border-radius:12px;box-shadow:0 2px 8px rgba(0,0,0,.08)}.content-section h2{font-size:2rem;font-weight:700;color:#333;margin-bottom:16px;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}.content-section p{font-size:1.125rem;color:#666;line-height:1.8;margin-bottom:16px;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}.content-section p:last-child{margin-bottom:0}.feature-list{list-style:none;padding:0;margin:0}.feature-list li{padding:12px 0 12px 28px;position:relative;font-size:1.125rem;color:#666;line-height:1.8;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}.feature-list li:before{content:"✓";position:absolute;left:0;color:#667eea;font-weight:700;font-size:1.2rem}.instruction-list{list-style:none;padding:0;margin:0;counter-reset:step-counter}.instruction-list li{counter-increment:step-counter;padding:24px 0 24px 60px;position:relative;border-bottom:1px solid #e0e0e0}.instruction-list li:last-child{border-bottom:none}.instruction-list li:before{content:counter(step-counter);position:absolute;left:0;top:24px;width:40px;height:40px;background:#667eea;color:white;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1.2rem}.instruction-list li strong{display:block;font-size:1.25rem;color:#333;margin-bottom:8px;font-weight:600}.instruction-list li p{margin:0;font-size:1.125rem;color:#666;line-height:1.8}.contact-info{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));grid-gap:32px;gap:32px;margin-top:24px}.contact-item{padding:24px;background:#f8f9fa;border-radius:8px}.contact-item h3{font-size:1.5rem;font-weight:600;color:#333;margin-bottom:12px;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}.contact-item p{margin:0;font-size:1rem;color:#666;line-height:1.6;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}.contact-link{color:#667eea;text-decoration:none;transition:color .2s ease}.contact-link:hover{color:#5568d3;text-decoration:underline}@media (max-width:1200px){.landing-content{grid-template-columns:1fr;gap:60px;padding:60px 40px}.landing-right{order:-1}}@media (max-width:768px){.nav-container{padding:15px 20px;gap:20px;position:relative}.nav-logo{font-size:1.1rem}.nav-logo img{width:32px;height:32px}.mobile-menu-toggle,.nav-logo-text{display:block}.nav-links{position:fixed;top:70px;left:0;width:100%;background-color:#ffffff;flex-direction:column;align-items:stretch;padding:20px 0;box-shadow:0 4px 6px rgba(0,0,0,.1);transform:translateX(-100%);transition:transform .3s ease;z-index:999;gap:0;max-height:calc(100vh - 70px);overflow-y:auto}.nav-links.active{transform:translateX(0)}.nav-link{font-size:1rem;padding:16px 20px;width:100%;text-align:left;border-bottom:1px solid #e0e0e0}.nav-link:last-child{border-bottom:none}.nav-link:hover{background-color:#f5f5f5}.landing-container{padding:100px 24px 60px}.landing-content{padding:0}.landing-right{display:none}.app-header{gap:12px}.app-logo img{max-width:80px}.app-title{font-size:2.5rem}.app-description{font-size:1rem}.download-buttons{flex-direction:column}.download-btn{min-width:100%}.landing-footer{padding:30px 20px 15px;margin-top:40px}.landing-footer p{font-size:.85rem}.page-content{padding:20px}.content-section{padding:24px}.content-section h2{font-size:1.5rem}.content-section p,.feature-list li,.instruction-list li p{font-size:1rem}.instruction-list li{padding-left:50px}.instruction-list li:before{width:32px;height:32px;font-size:1rem}.contact-info{grid-template-columns:1fr;gap:20px}}