/* ── @ai: AnBosca header component styles ── */
.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-subtle);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    gap: var(--spacing-md);
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.logo:hover { text-decoration: none; }

.main-nav ul {
    display: flex;
    gap: var(--spacing-lg);
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-link {
    color: var(--text-secondary);
    font-weight: 500;
    padding: 0.25rem 0;
    position: relative;
}

.nav-link:hover, .nav-link-active {
    color: var(--text-primary);
    text-decoration: none;
}

.nav-link-active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
}

.cart-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-primary);
    font-weight: 600;
}

.cart-count {
    background: var(--accent);
    color: var(--bg);
    font-size: 0.75rem;
    min-width: 20px;
    height: 20px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    padding: 0 0.35rem;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.mobile-menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
}

@media (max-width: 768px) {
    .mobile-menu-toggle { display: flex; }
    .main-nav {
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--bg-elevated);
        border-bottom: 1px solid var(--border);
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
    }
    .main-nav.open { max-height: 300px; }
    .main-nav ul { flex-direction: column; padding: var(--spacing-md); gap: var(--spacing-md); }
}