.header{position:fixed;top:0;left:0;width:100%;background:rgba(255,255,255,.95);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--border-color);z-index:var(--z-fixed);transition:all var(--transition-normal)}.header.scrolled{background:rgba(255,255,255,.98);backdrop-filter:blur(15px);-webkit-backdrop-filter:blur(15px);box-shadow:var(--shadow-md)}.scroll-progress{position:absolute;bottom:0;left:0;height:3px;width:0;background:linear-gradient(90deg,var(--primary-color),var(--accent-color));z-index:1;transition:none}.navbar-container{max-width:1200px;margin:0 auto;padding:0 var(--spacing-lg);display:flex;align-items:center;justify-content:space-between;height:80px}.navbar-brand{flex-shrink:0}.logo-img{height:45px;width:auto;transition:transform var(--transition-normal)}.logo-img:hover{transform:scale(1.05)}.navbar-menu{display:flex;align-items:center}.navbar-nav{display:flex;align-items:center;gap:var(--spacing-xl)}.nav-link{color:var(--text-primary);font-weight:500;font-size:.95rem;padding:var(--spacing-sm) 0;position:relative}.nav-link:hover{color:var(--primary-color)}.nav-link::after{content:'';position:absolute;bottom:0;left:0;width:0;height:2px;background:var(--primary-color);transition:width var(--transition-normal)}.nav-link:hover::after{width:100%}.navbar-end{display:flex;align-items:center;gap:var(--spacing-lg)}.lang-toggle{background:var(--background-secondary);border:1px solid var(--border-color);border-radius:var(--radius-full);padding:var(--spacing-xs) var(--spacing-md);cursor:pointer;font-family:var(--font-primary);font-size:.85rem;font-weight:600;display:flex;gap:var(--spacing-xs);transition:all var(--transition-normal);color:var(--text-primary)}.lang-toggle:hover{background:var(--primary-color);color:#fff;border-color:var(--primary-color)}.lang-toggle .lang-ar,.lang-toggle .lang-en{padding:2px 4px}.cta-btn-header{background:var(--primary-color);color:#fff;padding:var(--spacing-sm) var(--spacing-lg);border-radius:var(--radius-md);font-weight:600;font-size:.875rem;transition:all var(--transition-normal)}.cta-btn-header:hover{background:var(--primary-hover);transform:translateY(-2px);box-shadow:var(--shadow-md)}.login-btn-header{background:0 0;color:var(--primary-color);padding:var(--spacing-sm) var(--spacing-lg);border:1px solid var(--primary-color);border-radius:var(--radius-md);font-weight:600;font-size:.875rem;transition:all var(--transition-normal)}.login-btn-header:hover{background:var(--primary-color);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-md)}.nav-link-mobile-only{display:none}.mobile-menu-toggle{display:none;flex-direction:column;background:0 0;border:none;cursor:pointer;padding:var(--spacing-sm);gap:5px;z-index:var(--z-fixed)}.mobile-menu-toggle span{width:25px;height:3px;background:var(--text-primary);border-radius:2px;transition:all var(--transition-normal)}.mobile-menu-toggle.active span:first-child{transform:rotate(45deg) translate(6px,6px)}.mobile-menu-toggle.active span:nth-child(2){opacity:0}.mobile-menu-toggle.active span:nth-child(3){transform:rotate(-45deg) translate(6px,-6px)}