.header{background:hsla(0,0%,100%,.95);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:0 2px 20px rgba(28,168,168,.1);position:-webkit-sticky;position:sticky;top:0;z-index:1000;transition:all .3s ease;animation:slideDown .5s ease-out}@keyframes slideDown{0%{transform:translateY(-100%);opacity:0}to{transform:translateY(0);opacity:1}}.header-content{justify-content:space-between;padding:20px 0}.header-content,.logo{display:flex;align-items:center}.logo{gap:12px;font-size:1.75rem;font-weight:700;background:linear-gradient(135deg,var(--primary),var(--gradient-end));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;transition:var(--transition-smooth)}.logo:hover{transform:scale(1.02)}.logo-image{width:40px;height:40px;border-radius:8px;object-fit:contain}.nav{display:flex;align-items:center;gap:30px}.nav-link{color:var(--text);font-weight:500;transition:var(--transition-smooth);position:relative}.nav-link.active,.nav-link:hover{color:var(--primary-hover)}.nav-link:hover{transform:translateY(-1px)}.nav-link.active:after{content:"";position:absolute;bottom:-5px;left:0;right:0;height:2px;background:var(--primary)}.login-btn{padding:10px 24px;font-size:14px}.menu-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:5px}.menu-toggle span{width:25px;height:3px;background:var(--text);transition:all .3s ease;border-radius:2px}.menu-toggle span.open:first-child{transform:rotate(45deg) translate(8px,8px)}.menu-toggle span.open:nth-child(2){opacity:0}.menu-toggle span.open:nth-child(3){transform:rotate(-45deg) translate(7px,-7px)}@media (max-width:768px){.menu-toggle{display:flex}.nav{position:fixed;top:70px;left:0;right:0;background:#fff;flex-direction:column;padding:30px 20px;box-shadow:0 5px 20px rgba(0,0,0,.1);transform:translateX(-100%);transition:transform .3s ease;gap:20px;align-items:flex-start}.nav-open{transform:translateX(0)}.nav-link{font-size:1.1rem}.login-btn{width:100%;text-align:center}}