.header_container{position:relative;background:#000;padding:1rem 2rem;display:flex;align-items:center;justify-content:space-between;color:#f5f5f5;z-index:1000}.header_container::before,.header_container::after{content:"";position:absolute;left:0;right:0;height:3px;background:linear-gradient(90deg,transparent,#00bfff,transparent);box-shadow:0 0 10px #00bfff,0 0 20px #00bfff}.header_container::before{top:0}.header_container::after{bottom:0}.header_logo{display:flex;align-items:center;gap:0.6rem;font-size:1.5rem;font-weight:bold;color:#00bfff;text-shadow:0 0 8px #00bfff}.header_logo img{height:60px}.header_nav ul{list-style:none;display:flex;gap:1.5rem;margin:0;padding:0}.header_nav ul li a{color:#ccc;text-decoration:none;font-size:1.2rem;transition:color 0.3s ease,text-shadow 0.3s ease;display:flex;align-items:center;gap:0.5rem}.header_nav ul li a:hover{color:#00bfff;text-shadow:0 0 8px #00bfff}.header_burger{display:none;font-size:2.5rem;background:none;border:none;color:#00bfff;cursor:pointer}@media (max-width:768px){.header_nav{display:none;position:absolute;top:100%;right:0;background:#111;width:100%;padding:1rem 0;box-shadow:0 4px 12px rgba(0,0,0,0.7)}.header_nav.open{display:block}.header_nav ul{flex-direction:column;align-items:center;gap:1rem}.header_burger{display:block}}