.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    min-height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
    padding: 0 max(28px, calc((100vw - 1370px) / 2));
    background: rgba(255, 255, 255, 0.96);
    border-bottom: 1px solid rgba(233, 221, 227, 0.88);
    box-shadow: 0 6px 24px rgba(58, 11, 37, 0.035);
    backdrop-filter: blur(14px);
}

.logo-link {
    min-height: 48px;
    display: inline-flex;
    align-items: center;
    font-family: var(--fonte-titulo);
    font-size: clamp(1.65rem, 2.2vw, 2rem);
    font-weight: 700;
    color: var(--wine-700);
    line-height: 1;
    white-space: nowrap;
}

.site-nav ul {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: clamp(16px, 2vw, 28px);
}

.site-nav li { display: flex; align-items: center; }

.site-nav a,
.botao-dropdown-categorias {
    position: relative;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border: 0;
    background: transparent;
    color: var(--wine-800);
    font-family: var(--fonte-titulo);
    font-size: 1.02rem;
    font-weight: 600;
    line-height: 1;
    white-space: nowrap;
    transition: color 180ms ease;
}

.site-nav a::after,
.botao-dropdown-categorias::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 3px;
    width: 0;
    height: 2px;
    background: var(--gold);
    transform: translateX(-50%);
    transition: width 200ms var(--ease-out);
}

.site-nav a.ativo { color: var(--wine-700); }
.site-nav a.ativo::after { width: 100%; }

.nav-action { gap: 7px !important; }
.nav-action svg { width: 18px; height: 18px; stroke-width: 1.7; }
.nav-cart-count {
    min-width: 18px;
    height: 18px;
    display: inline-grid;
    place-items: center;
    padding-inline: 4px;
    border-radius: 999px;
    background: var(--wine-700);
    color: var(--white);
    font-family: var(--fonte-texto);
    font-size: 0.65rem;
    font-weight: 700;
}

.menu-toggle {
    width: 46px;
    height: 46px;
    display: none;
    place-items: center;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--white);
    color: var(--wine-800);
}

.menu-toggle span,
.menu-toggle::before,
.menu-toggle::after {
    content: "";
    width: 20px;
    height: 2px;
    grid-area: 1 / 1;
    border-radius: 2px;
    background: currentColor;
    transition: transform 200ms var(--ease-out), opacity 160ms ease;
}
.menu-toggle::before { transform: translateY(-6px); }
.menu-toggle::after { transform: translateY(6px); }
.menu-toggle[aria-expanded="true"] span { opacity: 0; }
.menu-toggle[aria-expanded="true"]::before { transform: rotate(45deg); }
.menu-toggle[aria-expanded="true"]::after { transform: rotate(-45deg); }

@media (hover: hover) and (pointer: fine) {
    .site-nav a:hover,
    .botao-dropdown-categorias:hover { color: var(--wine-700); }
    .site-nav a:hover::after,
    .botao-dropdown-categorias:hover::after { width: 100%; }
}

@media (max-width: 1024px) {
    .site-header { padding-inline: 24px; }
    .menu-toggle { display: grid; }
    .site-nav {
        position: fixed;
        inset: var(--header-height) 0 auto;
        max-height: calc(100dvh - var(--header-height));
        padding: 18px 20px 30px;
        overflow-y: auto;
        overscroll-behavior: contain;
        background: rgba(255, 255, 255, 0.99);
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-md);
        opacity: 0;
        visibility: hidden;
        transform: translateY(-10px);
        transform-origin: top;
        transition: opacity 200ms var(--ease-out), transform 200ms var(--ease-out), visibility 200ms;
    }
    .site-nav.ativo { opacity: 1; visibility: visible; transform: translateY(0); }
    .site-nav ul { align-items: stretch; flex-direction: column; gap: 2px; }
    .site-nav li { display: block; }
    .site-nav a,
    .botao-dropdown-categorias { width: 100%; min-height: 48px; justify-content: space-between; padding: 0 8px; font-size: 1.1rem; }
    .site-nav a::after,
    .botao-dropdown-categorias::after { left: 8px; bottom: 5px; transform: none; }
    .site-nav a.ativo::after { width: 38px; }
    .nav-action { justify-content: flex-start !important; }
}

@media (max-width: 480px) {
    .site-header { padding-inline: 14px; }
    .logo-link { font-size: 1.5rem; }
}

@media (prefers-reduced-motion: reduce) {
    .site-nav { transform: none; }
}