*{margin:0;padding:0;box-sizing:border-box}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;overflow-x:hidden}.landing-page,.video-page{min-height:100vh;background:linear-gradient(135deg,#0a0e27 0%,#1a1147 25%,#2d1b69 50%,#1a1147 75%,#0a0e27 100%);position:relative;overflow:hidden}.stars{position:fixed;top:0;left:0;width:100%;height:100%;pointer-events:none;background-image:radial-gradient(2px 2px at 20px 30px,#eee,transparent),radial-gradient(2px 2px at 60px 70px,#fff,transparent),radial-gradient(1px 1px at 50px 50px,#ddd,transparent),radial-gradient(1px 1px at 130px 80px,#fff,transparent),radial-gradient(2px 2px at 90px 10px,#eee,transparent);background-size:200px 200px;animation:twinkle 8s ease-in-out infinite;opacity:.6}@keyframes twinkle{0%,to{opacity:.6}50%{opacity:.8}}.content{position:relative;z-index:1;padding:2rem;max-width:900px;margin:0 auto;display:flex;flex-direction:column;align-items:center;min-height:100vh;justify-content:center}.header{text-align:center;margin-bottom:3rem}.title{font-size:3rem;margin-bottom:1rem;color:#fff;text-shadow:0 0 20px rgba(138,43,226,.8)}.cosmic-glow{background:linear-gradient(45deg,#ff6ec7,#b967ff,#4ecbff,#ff6ec7);background-size:300% 300%;-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;animation:gradientShift 4s ease infinite;display:inline-block}@keyframes gradientShift{0%,to{background-position:0% 50%}50%{background-position:100% 50%}}.subtitle{font-size:1.5rem;color:#b0a3ff;font-weight:300;letter-spacing:2px}.challenge-section{margin:2rem 0;width:100%}.challenge-card{background:rgba(138,43,226,.15);border:2px solid rgba(138,43,226,.4);border-radius:20px;padding:2.5rem;backdrop-filter:blur(10px);box-shadow:0 8px 32px #8a2be24d;animation:float 6s ease-in-out infinite}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}.challenge-card h3{font-size:2rem;color:gold;margin-bottom:1.5rem;text-align:center;text-shadow:0 0 10px rgba(255,215,0,.5)}.challenge-text{font-size:1.1rem;line-height:1.8;color:#e0d7ff;margin-bottom:1.2rem;text-align:center}.cosmic-symbols{font-size:2rem;text-align:center;margin-top:1.5rem;animation:pulse 3s ease-in-out infinite}@keyframes pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.7;transform:scale(1.05)}}.cta-button{display:inline-block;margin:2rem 0;padding:1.2rem 3rem;background:linear-gradient(135deg,#8a2be2,#4b0082,#8a2be2);background-size:200% 200%;border:none;border-radius:50px;font-size:1.3rem;font-weight:700;color:#fff;text-decoration:none;cursor:pointer;transition:all .3s ease;box-shadow:0 5px 25px #8a2be280;animation:buttonGlow 2s ease-in-out infinite}@keyframes buttonGlow{0%,to{box-shadow:0 5px 25px #8a2be280}50%{box-shadow:0 5px 35px #8a2be2cc}}.cta-button:hover{transform:scale(1.05);box-shadow:0 8px 40px #8a2be2cc}.button-text{display:block}.footer-message{margin-top:2rem;text-align:center;color:#b0a3ff;font-size:1.1rem;font-style:italic;opacity:.9}.video-container{width:100%;max-width:800px;margin:2rem 0}.video-wrapper{position:relative;padding-bottom:56.25%;height:0;overflow:hidden;border-radius:15px;box-shadow:0 10px 40px #8a2be266;background:rgba(138,43,226,.1);border:2px solid rgba(138,43,226,.3)}.video-wrapper iframe{position:absolute;top:0;left:0;width:100%;height:100%;border-radius:15px}.video-note{text-align:center;color:gold;margin-top:1.5rem;font-size:1rem;font-style:italic}.back-button{display:inline-block;margin-top:2rem;padding:.8rem 2rem;background:rgba(138,43,226,.3);border:2px solid rgba(138,43,226,.5);border-radius:30px;color:#fff;text-decoration:none;font-size:1.1rem;transition:all .3s ease;backdrop-filter:blur(10px)}.back-button:hover{background:rgba(138,43,226,.5);border-color:#8a2be2cc;transform:translate(-5px)}@media (max-width: 768px){.title{font-size:2rem}.subtitle{font-size:1.2rem}.challenge-card{padding:1.5rem}.challenge-card h3{font-size:1.5rem}.challenge-text{font-size:1rem}.cta-button{padding:1rem 2rem;font-size:1.1rem}.content{padding:1rem}}