.navbar{position:fixed;top:0;left:0;width:100%;background-color:transparent;backdrop-filter:none;padding:1.5rem 2rem;display:flex;justify-content:space-between;align-items:center;z-index:1000;border-bottom:1px solid rgba(255,255,255,0.1);transition:all 0.3s ease;transform:translateY(-100%);opacity:0;box-sizing:border-box}.navbar.visible{transform:translateY(0);opacity:1}.nav-brand{font-size:2rem;font-weight:bold;color:#149ddd;letter-spacing:0;cursor:pointer;transition:all 0.3s ease;font-family:'Arial',sans-serif;flex-shrink:0}.nav-brand:hover{transform:scale(1.05);color:#1bb3ff}.nav-menu{display:flex;list-style:none;gap:1.5rem;margin:0;padding:0;flex-wrap:nowrap;overflow:visible}.nav-menu li{position:relative;white-space:nowrap}.nav-brand img{width:48px;height:48px;object-fit:cover;border-radius:50%}.nav-menu a{color:rgba(255,255,255,0.9);text-decoration:none;font-size:1.05rem;font-weight:400;padding:0.5rem 0;transition:all 0.3s ease;position:relative;white-space:nowrap;display:inline-block}.nav-menu a::after{content:'';position:absolute;bottom:-5px;left:0;width:0;height:2px;background:#149ddd;transition:width 0.3s ease}.nav-menu a:hover{color:#ffffff}.nav-menu a:hover::after{width:100%}.nav-menu a.active{color:#149ddd}.nav-menu a.active::after{width:100%}.light-theme .navbar{background-color:transparent;border-bottom:1px solid rgba(218,211,211,0.1)}.light-theme .nav-menu a{color:rgba(0,0,0,0.075)}.light-theme .nav-menu a:hover{color:#000000}.light-theme .nav-menu a.active{color:#149ddd}.hamburger{display:none;flex-direction:column;cursor:pointer;gap:4px}.hamburger span{width:25px;height:3px;background-color:#ffffff;border-radius:3px;transition:all 0.3s ease}.light-theme .hamburger span{background-color:#000000}.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(7px,-6px)}.nav-menu a:focus-visible{outline:3px solid #149ddd;outline-offset:2px}@media(max-width:768px){.navbar{padding:1rem}.hamburger{display:flex}.nav-menu{position:fixed;top:70px;right:-100%;flex-direction:column;background-color:rgba(136,136,136,0.267);backdrop-filter:blur(10px);width:100%;max-width:280px;padding:2rem;gap:1.5rem;transition:right 0.3s ease;border-left:1px solid rgba(255,255,255,0.1);border-bottom:1px solid rgba(255,255,255,0.1)}.light-theme .nav-menu{background-color:rgba(255,255,255,0.98);border-left:1px solid rgba(0,0,0,0.1);border-bottom:1px solid rgba(0,0,0,0.1)}.nav-menu.active{right:0}.nav-menu li{width:100%}.nav-menu a{display:block;width:100%;text-align:center;padding:0.75rem 1rem}.nav-menu a::after{display:none}}html{scroll-padding-top:80px}.navbar.scrolled{padding:1rem 2rem;background-color:rgba(20,20,20,0.4);backdrop-filter:blur(15px);border-bottom:1px solid rgba(255,255,255,0.15)}.light-theme .navbar.scrolled{background-color:rgba(255,255,255,0.5);border-bottom:1px solid rgba(0,0,0,0.15)}@media(max-width:768px){.navbar.scrolled{padding:1rem 1.5rem}}