.navbar { 
    position: fixed; 
    display: flex; 
    align-items: center; 
    justify-content: space-between;
    background-color: rgba(240, 242, 245, 0.8); 
    -webkit-backdrop-filter: blur(5px); 
    backdrop-filter: blur(5px); 
    padding: 1.25rem clamp(40px, 8vw, 120px);
    top: 0;
    left: 0;
    right: 0;
    min-height: 2.5rem;
    z-index: 1000;
}

.navbar.scrolled {
    border-bottom: 1px solid var(--border-color);
} 

.navbar-logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(45deg, #00BFFF, #1E3A8A); 
    background-clip: text;
    text-decoration: none;
    color: transparent; 
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    flex-shrink: 0;
    margin-right: auto;
}

.navbar-menu { 
    display: flex; 
    gap: max(2rem, 20px); 
    list-style: none;
    align-items: center;
    margin: 0;
    padding: 0;
    flex-wrap: wrap;
    justify-content: flex-end;
} 

.navbar-menu a { 
    color: var(--text-first); 
    text-decoration: none; 
    font-weight: 500; 
    font-size: 1rem;
    transition: all 0.2s ease;
}

.navbar-menu a:hover {
    background: linear-gradient(45deg, #00BFFF, #1E3A8A);
    background-clip: text; 
    color: transparent; 
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.navbar-menu a.login,
.navbar-menu a.logout {
    background: linear-gradient(45deg, #00BFFF, #1E3A8A);
    color: white !important;
    padding: 10px 24px;
    border-radius: 25px;
    transition: all 0.3s ease;
    cursor: pointer;
    margin-left: auto;
}

.navbar-menu a.login:hover,
.navbar-menu a.logout:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(0, 191, 255, 0.3);
    color: white !important;
    -webkit-text-fill-color: white;
}

.navbar-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    flex-shrink: 0;
    margin-left: auto;
}

.navbar-toggle img {
    width: 24px;
    height: 24px;
    filter: brightness(0.6) saturate(1.2);
    transition: all 0.3s ease;
}

.navbar-toggle:hover img {
    filter: brightness(0.4) saturate(1.5);
}

.navbar-menu.navbar-mobile-open {
    display: flex !important;
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    flex-direction: column;
    background-color: rgba(240, 242, 245, 0.95);
    backdrop-filter: blur(5px);
    padding: 1rem;
    gap: 0.5rem;
    border-bottom: 1px solid var(--border-color);
    z-index: 999;
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.navbar-menu.navbar-mobile-open li {
    width: 100%;
}

.navbar-menu.navbar-mobile-open a {
    display: block;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    transition: background-color 0.2s ease;
}

.navbar-menu.navbar-mobile-open a:hover {
    background-color: rgba(0, 191, 255, 0.1);
}

.navbar-menu.navbar-mobile-open a.login,
.navbar-menu.navbar-mobile-open a.logout {
    margin-left: 0;
    text-align: center;
    padding: 8px 16px !important;
    font-size: 0.9rem;
}

/* Mobile Media Query */
@media (max-width: 768px) {
    .navbar {
        padding: 1rem clamp(12px, 4vw, 40px);
    }

    .navbar-menu {
        display: none !important;
    }

    .navbar-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .navbar-logo {
        font-size: 1.25rem;
    }
}