.birthday-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:#000c;display:flex;justify-content:center;align-items:center;z-index:9999;animation:fadeIn .3s ease-in}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.birthday-popup{position:relative;max-width:90%;max-height:90vh;background:#fff;border-radius:20px;padding:20px;box-shadow:0 10px 50px #00000080;animation:popIn .5s cubic-bezier(.68,-.55,.265,1.55)}@keyframes popIn{0%{transform:scale(.5);opacity:0}to{transform:scale(1);opacity:1}}.close-button{position:absolute;top:10px;right:10px;width:40px;height:40px;border:none;background:#ffffffe6;color:#333;font-size:30px;line-height:1;border-radius:50%;cursor:pointer;transition:all .3s ease;z-index:10;box-shadow:0 2px 10px #0003}.close-button:hover{background:#ff6b6b;color:#fff;transform:rotate(90deg)}.birthday-poster{display:block;max-width:100%;max-height:80vh;width:auto;height:auto;border-radius:10px}.fireworks-container{position:fixed;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:10000}.firework{position:absolute;width:4px;height:4px;border-radius:50%;animation:firework 2s ease-out infinite}.firework:nth-child(1){left:20%;top:30%;animation-delay:0s}.firework:nth-child(2){left:80%;top:40%;animation-delay:.5s}.firework:nth-child(3){left:50%;top:20%;animation-delay:1s}.firework:nth-child(4){left:30%;top:60%;animation-delay:1.5s}.firework:nth-child(5){left:70%;top:70%;animation-delay:2s}@keyframes firework{0%{transform:translate(0);opacity:1;box-shadow:0 0 #ff6b6b,0 0 #4ecdc4,0 0 #ffe66d,0 0 #a8e6cf,0 0 #ff8b94}50%{opacity:1}to{transform:translateY(-100px);opacity:0;box-shadow:0 -50px 20px 10px #ff6b6b,50px -25px 20px 10px #4ecdc4,-50px -25px 20px 10px #ffe66d,25px 25px 20px 10px #a8e6cf,-25px 25px 20px 10px #ff8b94,0 50px 20px 10px #ffd93d,-40px 0 20px 10px #6bcf7f,40px 0 20px 10px #c77dff}}@media(max-width:768px){.birthday-popup{max-width:95%;padding:15px}.birthday-poster{max-height:70vh}.close-button{width:35px;height:35px;font-size:25px}}#header_wrapper{width:100%}#header_wrapper.scroll-fixed{position:fixed;top:0;left:0;right:0;width:100%;z-index:9999}