header{position:fixed;top:0;width:100%;background:#fffffff2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);z-index:1000;box-shadow:var(--shadow-sm);transition:var(--transition)}header.scrolled{box-shadow:var(--shadow-md)}header .container{display:flex;justify-content:space-between;align-items:center;padding:1rem 5%;max-width:1200px;margin:0 auto}.logo{display:flex;align-items:center;gap:.75rem}.logo img{height:45px;width:auto;object-fit:contain}.nav-links{display:flex;gap:2rem;align-items:center}.nav-links a{font-weight:500;font-size:.95rem;transition:var(--transition);position:relative;color:var(--irie-text)}.nav-links a:after{content:"";position:absolute;bottom:-4px;left:0;width:0;height:2px;background:linear-gradient(135deg,var(--irie-green),var(--irie-yellow));transition:var(--transition)}.nav-links a:hover:after,.nav-links a.active:after{width:100%}.nav-links a:hover{color:var(--irie-green)}.nav-actions{display:flex;align-items:center;gap:1.5rem}.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:5px}.hamburger span{width:25px;height:3px;background:var(--irie-black);border-radius:5px;transition:var(--transition)}.hamburger.active span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}.hamburger.active span:nth-child(2){opacity:0}.hamburger.active span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}@media(max-width:1024px){.nav-links{position:fixed;top:80px;left:0;width:100%;background:#fff;flex-direction:column;padding:2rem;gap:1.5rem;box-shadow:var(--shadow-md);transform:translate(-100%);transition:var(--transition);opacity:0}.hamburger{display:flex}.nav-links.active{transform:translate(0);opacity:1}.nav-actions .btn-primary{display:flex}}@media(max-width:768px){.nav-links{position:fixed;top:80px;left:0;width:100%;background:#fff;flex-direction:column;padding:2rem;gap:1.5rem;box-shadow:var(--shadow-md);transform:translate(-100%);transition:var(--transition);opacity:0}.nav-links.active{transform:translate(0);opacity:1}.hamburger,.nav-actions .btn-primary{display:flex}}@media(max-width:380px){.nav-actions .btn-primary{display:flex;white-space:nowrap;margin-left:2rem}}