/* ===== NAVBAR COMPONENTS ===== */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-neutral-200);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    transition: var(--transition-base);
    width: 100%;
    min-height: 60px;
}

.navbar.scrolled { background: rgba(255, 255, 255, 0.98); box-shadow: var(--shadow-md); }

.navbar-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-2) 0;
}

/* Navbar sections */
.navbar-left, .navbar-center, .navbar-right { display: flex; align-items: center; }
.navbar-left { flex: 1 1 0; }
.navbar-center { flex: 2 1 0; justify-content: center; }
.navbar-right { flex: 1 1 0; justify-content: flex-end; gap: var(--space-2); }

.navbar-brand {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    color: var(--color-neutral-900);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: var(--space-1);
    transition: var(--transition-fast);
}

.navbar-brand:hover { transform: scale(1.05); text-decoration: none; }

.brand-icon {
    color: var(--color-primary-500);
    font-size: var(--text-2xl);
    transition: var(--transition-fast);
}

.navbar-brand:hover .brand-icon {
    color: var(--color-primary-600);
    transform: rotate(5deg);
}

.brand-text {
    color: var(--color-neutral-900);
    font-weight: var(--font-bold);
    transition: var(--transition-fast);
}

.navbar-brand:hover .brand-text {
    color: var(--color-primary-600);
}

.navbar-nav {
    display: flex;
    list-style: none;
    gap: var(--space-6);
    margin: 0;
    padding: 0;
    align-items: center;
}

.nav-item { position: relative; }

.nav-link {
    position: relative;
    padding: var(--space-1) var(--space-3);
    color: var(--color-neutral-700);
    text-decoration: none;
    font-weight: var(--font-medium);
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    gap: var(--space-1);
    border-radius: var(--radius-md);
}

.nav-link::before {
    content: '';
    position: absolute;
    bottom: 0; left: 50%;
    width: 0; height: 2px;
    background: var(--color-primary-500);
    transition: var(--transition-fast);
}

.nav-link:hover {
    color: var(--color-primary-700);
    text-decoration: none;
    transform: translateY(-2px);
    background-color: var(--color-primary-50);
}

.nav-link:hover::before { left: 0; width: 100%; }

.nav-link:focus {
    outline: 2px solid var(--color-primary-500);
    outline-offset: 2px;
}

.nav-icon { font-size: var(--text-lg); }

/* Link variants */
.logout-link { color: var(--color-error-600); }
.logout-link:hover {
    color: var(--color-error-700);
    background-color: var(--color-error-50);
}

.login-link { color: var(--color-primary-600); }
.login-link:hover {
    color: var(--color-primary-700);
    background-color: var(--color-primary-50);
}

.register-button { color: var(--color-secondary-600); }
.register-button:hover {
    color: var(--color-secondary-700);
    background-color: var(--color-secondary-50);
}

.cart-link { color: var(--color-accent-600); }
.cart-link:hover {
    color: var(--color-accent-700);
    background-color: var(--color-accent-50);
}

/* Cart Badge */
.cart-icon-wrapper { position: relative; }

.cart-badge {
    position: absolute;
    top: -8px; right: -8px;
    background: var(--color-error-500);
    color: white;
    font-size: var(--text-xs);
    font-weight: var(--font-bold);
    padding: 2px 6px;
    border-radius: var(--radius-full);
    min-width: 18px;
    text-align: center;
    line-height: 1;
    animation: pulse 2s infinite;
    z-index: var(--z-dropdown);
}
.cart-badge:empty { display: none; }

@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.7} }

/* Dropdown Menus */
.dropdown { position: relative; }
.dropdown-toggle {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    color: var(--color-neutral-700);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
}

.dropdown-toggle:hover {
    background-color: var(--color-neutral-100);
    color: var(--color-neutral-900);
}

.dropdown-arrow { font-size: var(--text-sm); transition: var(--transition-fast); }
.dropdown-toggle:hover .dropdown-arrow { transform: rotate(180deg); }

.dropdown-menu {
    position: absolute;
    top: 100%; right: 0;
    background: white;
    border: 1px solid var(--color-neutral-200);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition-fast);
    z-index: var(--z-dropdown);
}
.dropdown-menu.show { opacity: 1; visibility: visible; transform: translateY(0); }

.dropdown-item {
    display: flex; align-items: center; gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    color: var(--color-neutral-700);
    text-decoration: none;
    transition: var(--transition-fast);
    font-weight: var(--font-medium);
    width: 100%;
}
.dropdown-item:hover { background: var(--color-neutral-100); color: var(--color-neutral-900); text-decoration: none; }

.dropdown-divider { height: 1px; background: var(--color-neutral-200); margin: var(--space-2) 0; }

/* Mobile Navigation */
.navbar-toggle {
    display: none;
    background: none;
    border: none;
    padding: var(--space-2);
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
    flex-direction: column;
    gap: 4px;
}
.navbar-toggle:hover { background: var(--color-neutral-100); }

.hamburger-line {
    display: block;
    width: 24px; height: 3px;
    background: var(--color-neutral-700);
    border-radius: var(--radius-full);
    transition: var(--transition-fast);
}
.navbar-toggle.active .hamburger-line:nth-child(1) { transform: rotate(45deg) translate(6px, 6px); }
.navbar-toggle.active .hamburger-line:nth-child(2) { opacity: 0; }
.navbar-toggle.active .hamburger-line:nth-child(3) { transform: rotate(-45deg) translate(6px, -6px); }

/* Responsive */
@media (max-width: 768px) {
    .navbar-nav { overflow-x: auto; }
    
    .navbar-nav {
        display: none;
        position: absolute; top: 100%; left: 0; right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: var(--space-4);
        border-top: 1px solid var(--color-neutral-200);
        gap: var(--space-2);
    }
    .navbar-nav.active { display: flex; }
    .navbar-toggle { display: flex; }

    .navbar-right { gap: var(--space-1); }
}

@media (max-width: 480px) {
    .navbar-brand { font-size: var(--text-xl); }
    .brand-icon { font-size: var(--text-2xl); }
}