/* Barra fixa mobile — WhatsApp + dropup de serviços */
.mobile-wa-dropup {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 950;
    pointer-events: none;
    transform: translateY(100%);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s ease, visibility 0.3s;
}

.mobile-wa-dropup.is-visible {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
}

.mobile-wa-dropup__bar {
    display: flex;
    align-items: stretch;
    gap: 0.5rem;
    padding: 0.6rem var(--space-s);
    padding-bottom: calc(0.6rem + env(safe-area-inset-bottom, 0px));
    background: color-mix(in srgb, var(--color-background) 96%, var(--color-dark));
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-top: 1px solid color-mix(in srgb, var(--color-dark) 12%, var(--color-border));
    box-shadow: 0 -10px 32px rgb(26 31 38 / 10%);
    pointer-events: auto;
}

.mobile-wa-dropup__main {
    flex: 1;
    min-height: 46px;
    justify-content: center;
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    background: var(--color-dark);
    border-color: var(--color-dark);
    color: #fff;
    border-radius: 6px;
    box-shadow: 0 4px 14px rgb(26 31 38 / 22%);
}

.mobile-wa-dropup__main:hover {
    background: color-mix(in srgb, var(--color-dark) 88%, #000);
    border-color: color-mix(in srgb, var(--color-dark) 88%, #000);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 6px 18px rgb(26 31 38 / 26%);
}

.mobile-wa-dropup__toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    min-height: 46px;
    padding: 0 0.9rem;
    border: 1px solid color-mix(in srgb, var(--color-dark) 18%, var(--color-border));
    border-radius: 6px;
    background: var(--color-background);
    color: var(--color-dark);
    font-family: inherit;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    cursor: pointer;
    box-shadow: 0 2px 8px rgb(26 31 38 / 6%);
    transition: border-color 0.2s ease, background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.mobile-wa-dropup__toggle:hover,
.mobile-wa-dropup.is-open .mobile-wa-dropup__toggle {
    border-color: var(--color-primary);
    background: var(--color-primary-wash);
    color: var(--color-primary-text);
    box-shadow: 0 4px 12px rgb(37 99 235 / 12%);
}

.mobile-wa-dropup__chevron {
    flex-shrink: 0;
    color: var(--color-primary-text);
    transition: transform 0.25s ease;
}

.mobile-wa-dropup.is-open .mobile-wa-dropup__chevron {
    transform: rotate(180deg);
}

.mobile-wa-dropup__menu {
    position: absolute;
    left: var(--space-s);
    right: var(--space-s);
    bottom: calc(100% + 0.5rem);
    max-height: min(50vh, 20rem);
    overflow-y: auto;
    padding: 0.5rem 0;
    border: 1px solid color-mix(in srgb, var(--color-dark) 10%, var(--color-border));
    border-radius: 10px;
    background: var(--color-background);
    box-shadow: 0 -12px 40px rgb(26 31 38 / 14%);
    pointer-events: auto;
    opacity: 0;
    transform: translateY(0.65rem);
    transition: opacity 0.22s ease, transform 0.22s ease;
}

.mobile-wa-dropup.is-open .mobile-wa-dropup__menu {
    opacity: 1;
    transform: translateY(0);
}

.mobile-wa-dropup__menu[hidden] {
    display: block;
    visibility: hidden;
}

.mobile-wa-dropup.is-open .mobile-wa-dropup__menu[hidden] {
    visibility: visible;
}

.mobile-wa-dropup__menu-title {
    margin: 0 0 0.25rem;
    padding: 0.35rem 0.9rem 0.5rem;
    font-size: 0.625rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--color-text-dim);
    border-bottom: 1px solid var(--color-border);
}

.mobile-wa-dropup__list {
    list-style: none;
    margin: 0;
    padding: 0.25rem 0;
}

.mobile-wa-dropup__link {
    display: block;
    padding: 0.7rem 0.9rem;
    color: var(--color-dark);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.01em;
    transition: background 0.15s ease, color 0.15s ease;
}

.mobile-wa-dropup__link:hover,
.mobile-wa-dropup__link:focus-visible {
    background: var(--color-primary-wash);
    color: var(--color-primary-text);
}

body:has(.mobile-wa-dropup) {
    --mobile-wa-bar-offset: calc(4.35rem + env(safe-area-inset-bottom, 0px));
    padding-bottom: calc(var(--mobile-wa-bar-offset) + 0.5rem);
}

.seo-page:has(.mobile-wa-dropup),
.blog-article-page:has(.mobile-wa-dropup) {
    padding-bottom: calc(var(--mobile-wa-bar-offset) + 0.5rem);
}

/* Widget de acessibilidade acima da barra fixa */
body:has(.mobile-wa-dropup) .a11y-widget {
    bottom: calc(var(--mobile-wa-bar-offset) + 0.65rem);
}

@media (min-width: 768px) {
    .mobile-wa-dropup__bar {
        max-width: 520px;
        margin: 0 auto;
        border-radius: 12px 12px 0 0;
        border-left: 1px solid color-mix(in srgb, var(--color-dark) 12%, var(--color-border));
        border-right: 1px solid color-mix(in srgb, var(--color-dark) 12%, var(--color-border));
    }

    .mobile-wa-dropup__menu {
        max-width: 520px;
        left: 50%;
        right: auto;
        width: calc(100% - 2rem);
        transform: translateX(-50%) translateY(0.65rem);
    }

    .mobile-wa-dropup.is-open .mobile-wa-dropup__menu {
        transform: translateX(-50%) translateY(0);
    }
}

@media (prefers-reduced-motion: reduce) {
    .mobile-wa-dropup,
    .mobile-wa-dropup__menu,
    .mobile-wa-dropup__chevron,
    .mobile-wa-dropup__main {
        transition: none;
    }

    .mobile-wa-dropup__main:hover {
        transform: none;
    }
}