:root{--primary-color: #49B7A9;--secondary-color: #3DB2A3;--accent-color: #F51A1A;--text-color: #534A3D;--light-color: #f5f5f5}*{margin:0;padding:0;box-sizing:border-box;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif}.app-container{background-color:var(--light-color);color:var(--text-color);line-height:1.6}.container{max-width:1200px;margin:0 auto;padding:0 20px}.header{background-color:var(--primary-color);color:#fff;padding:15px 0;position:fixed;width:100%;top:0;z-index:100}.header-content{display:flex;justify-content:space-between;align-items:center}.logo{display:flex;align-items:center;gap:12px}.logo-img{height:50px}.language-switcher{display:flex;gap:10px;align-items:center}.language-btn{background-color:transparent;color:#fff;border:1px solid white;padding:5px 10px;border-radius:4px;cursor:pointer;transition:all .3s ease}.language-btn.active{background-color:#fff;color:var(--primary-color)}.hero{padding-top:120px;padding-bottom:60px;text-align:center;background:linear-gradient(to bottom,var(--primary-color),var(--secondary-color));color:#fff}.hero-text{max-width:800px;margin:0 auto;padding-bottom:40px}.hero h1{font-size:3rem;margin-bottom:20px}.hero p{font-size:1.2rem;margin-bottom:30px}.app-screenshot{max-width:300px;border-radius:20px;box-shadow:0 10px 20px #0000004d;margin:0 auto;display:block}.features{padding:80px 0;background-color:#fff}.features h2{text-align:center;margin-bottom:50px;color:var(--primary-color)}.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:30px}.feature-card{background-color:var(--light-color);padding:30px;border-radius:10px;text-align:center;box-shadow:0 5px 15px #0000001a;transition:transform .3s ease}.feature-card:hover{transform:translateY(-10px)}.feature-icon{font-size:2.5rem;color:var(--accent-color);margin-bottom:20px}.download-section{padding:80px 0;background-color:var(--light-color);text-align:center}.download-section h2{margin-bottom:50px;color:var(--primary-color)}.download-options{display:flex;flex-wrap:wrap;justify-content:center;gap:40px}.download-option{background-color:#fff;padding:30px;border-radius:10px;box-shadow:0 5px 15px #0000001a;flex:1;min-width:280px;max-width:350px}.download-option h3{margin-bottom:20px}.qr-code{width:180px;height:180px;margin:0 auto 20px;background-color:#f0f0f0;border-radius:10px;display:flex;align-items:center;justify-content:center}.qr-code img{max-width:100%;max-height:100%}.download-btn{background-color:var(--accent-color);color:#fff;padding:12px 25px;border-radius:30px;border:none;font-weight:700;cursor:pointer;transition:all .3s ease}.download-btn:hover{background-color:#e64a19;transform:scale(1.05)}.footer{background-color:var(--primary-color);color:#fff;padding:30px 0;text-align:center}.footer img{width:50px}.footer-content{display:flex;flex-direction:column;align-items:center}.footer-logo,.footer-links{margin-bottom:20px}.footer-links a{color:#fff;margin:0 10px;text-decoration:none}.social-icons{margin-bottom:20px}.social-icons a{color:#fff;margin:0 10px;font-size:1.2rem}@media (max-width: 768px){.hero h1{font-size:2.5rem}.download-options{flex-direction:column;align-items:center}}