html,body{margin:0;padding:0;width:100%;height:100%;overflow:hidden}.main-page{position:relative;text-align:center;padding:50px;min-height:100vh;width:100%;box-sizing:border-box;display:flex;justify-content:center;align-items:center;background-color:#000;color:#fff;flex-direction:column}.text-container{position:relative;z-index:30;transition:opacity 1s ease-out}.text-container.fade-out{opacity:0;pointer-events:none}.title{font-size:2rem;color:#fff;margin-bottom:20px}.input-text{padding:10px;font-size:1rem;border:1px solid white;border-radius:5px;background-color:#ffffff1a;color:#fff;outline:none;text-align:center;width:220px}.input-text::placeholder{color:#ffffffb3}.star-animation{position:absolute;top:0;left:0;width:100%;height:100%;background:#000;overflow:hidden;z-index:10;transition:transform 2s ease-in-out,opacity 2s ease-in-out}.space-travel .star-animation{transform:scale(10);opacity:0}.stars{position:relative;width:100%;height:100%}.star{position:absolute;border-radius:50%;background-color:#fff;will-change:transform,opacity;animation:twinkle 2s infinite ease-in-out}@keyframes twinkle{0%,to{opacity:.5}50%{opacity:1}}.lines{position:absolute;top:0;left:0;width:100%;height:100%;z-index:12}.lines polyline{stroke:#fff;stroke-width:1;stroke-dasharray:1000;stroke-dashoffset:1000;animation:drawLine 2s forwards}@keyframes drawLine{to{stroke-dashoffset:0}}.space-tunnel{position:absolute;top:50%;left:50%;width:100%;height:100%;transform:translate(-50%,-50%);perspective:1000px;z-index:15;overflow:hidden}.tunnel-ring{position:absolute;top:50%;left:50%;width:10vmin;height:10vmin;border:2px solid rgba(255,255,255,.5);border-radius:50%;transform-style:preserve-3d;will-change:transform,opacity;transform:translate(-50%,-50%)}@keyframes tunnel{0%{transform:translate(-50%,-50%) translateZ(-2000px) scale(.1);opacity:0}50%{opacity:.5}to{transform:translate(-50%,-50%) translateZ(1000px) scale(5);opacity:0}}.tunnel-ring{animation:tunnel 4s linear infinite}.tunnel-ring:nth-child(1){animation-delay:0s}.tunnel-ring:nth-child(2){animation-delay:.13s}.tunnel-ring:nth-child(3){animation-delay:.26s}.tunnel-ring:nth-child(4){animation-delay:.39s}.tunnel-ring:nth-child(5){animation-delay:.52s}.passing-stars{position:absolute;top:50%;left:50%;width:100%;height:100%;transform:translate(-50%,-50%);perspective:1000px;z-index:16;overflow:hidden}.passing-star{position:absolute;width:2px;height:2px;background-color:#fff;border-radius:50%;will-change:transform,opacity;animation:passStar 2s linear infinite}@keyframes passStar{0%{transform:translate(-50%,-50%) translateZ(-1000px);opacity:0}50%{opacity:1}to{transform:translate(-50%,-50%) translateZ(1000px);opacity:0}}.passing-star:nth-child(odd){animation-duration:2s}.passing-star:nth-child(2n){animation-duration:3s}.passing-star:nth-child(1){top:20%;left:50%}.passing-star:nth-child(2){top:50%;left:20%}.passing-star:nth-child(3){top:80%;left:50%}.passing-star:nth-child(4){top:50%;left:80%}.passing-star:nth-child(5){top:30%;left:30%}.passing-star:nth-child(6){top:70%;left:70%}.passing-star:nth-child(7){top:70%;left:30%}.passing-star:nth-child(8){top:30%;left:70%}.message-page{display:flex;justify-content:center;align-items:center;min-height:100vh;background-color:#000;color:#fff;overflow:hidden;position:relative;transition:background-color 2s ease}.night-sky{background:linear-gradient(to bottom,#000,#0b132b)}.message-card,.final-message{background:#ffffff1a;padding:20px;border-radius:15px;box-shadow:0 0 15px #ffffff4d;font-size:1.2rem;cursor:pointer;transition:transform .3s ease;z-index:2;position:relative}.message-card:hover{transform:scale(1.05)}.final-message{text-align:center;font-size:1.5rem;cursor:default}.fireworks-container{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:1}.video-container{position:fixed;bottom:20px;right:20px;width:200px;height:113px;z-index:1000;border:2px solid white;background-color:#000}.video-container iframe{width:100%;height:100%;border:none}@media (max-width: 768px){.video-container{bottom:20%;right:50%;transform:translate(50%,50%);width:50vw;height:30vw}}