:root{--primary-color:#0056b3;--secondary-color:#00a8e8;--dark-color:#333;--light-gray:#f4f7f6;--text-color:#4a4a4a;--white:#fff;--font-main:"Inter", sans-serif;--transition:all .3s ease}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-main);color:var(--text-color);background-color:var(--white);line-height:1.6}a{color:inherit;transition:var(--transition);text-decoration:none}ul{list-style:none}.container{max-width:1200px;margin:0 auto;padding:0 20px}.header{background-color:var(--white);z-index:1000;width:100%;position:fixed;top:0;box-shadow:0 2px 10px #0000000d}.header-container{justify-content:space-between;align-items:center;height:90px;display:flex}.logo-link{align-items:center;height:100%;padding:10px 0;display:flex}.logo-img{object-fit:contain;width:auto;height:100%;max-height:70px}.header-right{align-items:center;gap:20px;display:flex}.nav-list{align-items:center;gap:30px;display:flex}.nav-lang{align-items:center;display:flex}.nav-list a{color:var(--dark-color);font-size:1rem;font-weight:500}.nav-list a:hover{color:var(--primary-color)}.hero{text-align:center;height:100vh;color:var(--white);background-color:#0000;background-image:linear-gradient(#0009,#0009),url(https://images.unsplash.com/photo-1521737604893-d14cc237f11d?ixlib=rb-1.2.1&auto=format&fit=crop&w=1950&q=80);background-position:50%;background-repeat:repeat,repeat;background-size:cover;background-attachment:scroll,scroll;background-origin:padding-box,padding-box;background-clip:border-box,border-box;align-items:center;padding-top:80px;display:flex;position:relative}.hero-overlay{z-index:1;background:#0006;width:100%;height:100%;position:absolute;top:0;left:0}.hero-content{z-index:2;width:100%;position:relative}.hero h1{letter-spacing:-1px;margin-bottom:20px;font-size:3.5rem;font-weight:700}.hero-subtitle{opacity:.9;max-width:600px;margin:0 auto 30px;font-size:1.25rem}.event-details{-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);background:#ffffff26;border-radius:8px;margin-bottom:30px;padding:20px 30px}.event-speaker{opacity:.95;margin-bottom:8px;font-size:1.5rem;font-weight:600}.event-time{opacity:.9;font-size:1.3rem}.btn{background-color:var(--primary-color);color:var(--white);border:2px solid var(--primary-color);border-radius:5px;padding:12px 30px;font-weight:600;text-decoration:none;display:inline-block}.btn:hover{color:var(--white);border-color:var(--white);background-color:#0000}.btn-primary{background-color:var(--primary-color);color:var(--white);border:none}.btn-primary:hover{background-color:var(--primary-color);opacity:.9}.section{padding:80px 0}.section-header{text-align:center;margin-bottom:60px}.section-header h2{color:var(--dark-color);margin-bottom:15px;font-size:2.5rem}.divider{background-color:var(--secondary-color);border-radius:2px;width:60px;height:4px;margin:0 auto}.features-grid{grid-template-columns:repeat(auto-fit,minmax(300px,1fr));justify-content:center;gap:40px;margin-top:40px;display:grid}.feature-card{background:var(--white);text-align:center;transition:var(--transition);border:1px solid #0000000d;border-radius:12px;flex-direction:column;align-items:center;height:100%;padding:50px 30px;display:flex;box-shadow:0 10px 30px #0000000d}.feature-card:hover{border-color:var(--primary-color);transform:translateY(-10px);box-shadow:0 20px 40px #0000001a}.feature-card i{color:var(--primary-color);background:#f0f7ff;border-radius:50%;justify-content:center;align-items:center;width:140px;height:140px;margin-bottom:30px;padding:30px;font-size:5rem;display:flex}.feature-card:hover i{background:var(--primary-color);color:var(--white)}.about-content{text-align:center;color:#555;max-width:900px;margin:0 auto 60px;font-size:1.1rem}.feature-card h3{color:var(--dark-color);margin-bottom:15px;font-size:1.5rem}.feature-card p{color:#666;line-height:1.7}.cta-section{color:var(--white);text-align:center;background:linear-gradient(#0056b3e6,#0056b3e6)}.cta-section h2{color:var(--white);margin-bottom:15px;font-size:2.5rem}.cta-section p{opacity:.9;margin-bottom:30px;font-size:1.2rem}.btn-light{background-color:var(--white);color:var(--primary-color);border-color:var(--white)}.btn-light:hover{color:var(--white);background-color:#0000}.footer{background-color:var(--dark-color);color:var(--white);padding:60px 0 20px}.footer-content{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:40px;margin-bottom:40px;display:grid}.footer-logo{color:var(--white);margin-bottom:20px;font-size:1.5rem;font-weight:700;display:block}.footer-section h4{color:var(--white);margin-bottom:20px;font-size:1.1rem}.footer-links li{margin-bottom:10px}.footer-links a{color:#ccc}.footer-links a:hover{color:var(--white);padding-left:5px}.footer-bottom{text-align:center;color:#888;border-top:1px solid #444;padding-top:20px;font-size:.9rem}.form-section{background-color:var(--light-gray);min-height:100vh;padding:120px 0 80px}.form-card{background:var(--white);border-radius:12px;max-width:600px;margin:0 auto;padding:50px;box-shadow:0 10px 30px #00000014}.form-card h2{color:var(--dark-color);text-align:center;margin-bottom:15px;font-size:2rem}.form-card p{color:#666;text-align:center;margin-bottom:40px}.form-group{margin-bottom:25px}.form-group label{color:var(--dark-color);margin-bottom:8px;font-weight:600;display:block}.form-group input{width:100%;font-size:1rem;font-family:var(--font-main);transition:var(--transition);border:1px solid #ddd;border-radius:6px;padding:14px 18px}.form-group input:focus{border-color:var(--primary-color);outline:none;box-shadow:0 0 0 3px #0056b31a}.submit-btn{background-color:var(--primary-color);width:100%;color:var(--white);cursor:pointer;transition:var(--transition);border:none;border-radius:6px;margin-top:10px;padding:16px 30px;font-size:1.1rem;font-weight:600}.submit-btn:hover{background-color:#004494}.submit-btn:disabled{cursor:not-allowed;background-color:#ccc}.success-page{text-align:center;justify-content:center;align-items:center;min-height:100vh;padding:150px 0;display:flex}.success-icon{color:#fff;background:#10b981;border-radius:50%;justify-content:center;align-items:center;width:120px;height:120px;margin:0 auto 30px;font-size:3rem;display:flex}.success-page h1{color:#10b981;margin-bottom:20px;font-size:2.5rem}.success-page p{color:#666;margin-bottom:30px;font-size:1.2rem}.redirect-msg{color:#888;font-size:1rem}.menu-toggle{cursor:pointer;color:var(--dark-color);background:0 0;border:none;padding:5px;font-size:24px;display:none}@media (max-width:768px){.header-container{height:70px}.header-right{align-items:center;gap:15px;display:flex}.language-select{padding:6px 10px;font-size:.85rem}.logo-img{max-height:50px}.menu-toggle{display:block}.nav{background:var(--white);width:100%;padding:20px;display:none;position:absolute;top:70px;left:0;box-shadow:0 5px 10px #0000001a}.nav.active{display:block}.nav-list{text-align:center;flex-direction:column}.hero h1{font-size:2.5rem}.form-card{padding:30px 20px}}.language-select{cursor:pointer;background:#fff;border:1px solid #ddd;border-radius:4px;outline:none;padding:5px 10px;font-size:.9rem}.language-select:hover{border-color:var(--primary-color)}