/**
 * Convite flutuante — Canal WhatsApp Nerdin.
 * z-index deliberadamente abaixo de cookies (1080), modais (1090+) e FAB filtros (1040).
 */
.nerdin-wa-invite {
    --nerdin-wa-bottom: 1.15rem;
    position: fixed;
    right: 1rem;
    bottom: var(--nerdin-wa-bottom);
    left: auto;
    z-index: 1030;
    width: min(18.5rem, calc(100vw - 1.5rem));
    padding: 0.85rem 0.9rem 0.9rem;
    border-radius: 14px;
    border: 1px solid rgba(16, 37, 74, 0.12);
    background: #fff;
    color: #10254A;
    box-shadow: 0 10px 28px rgba(16, 37, 74, 0.16);
    font-family: inherit;
}

.nerdin-wa-invite[hidden] {
    display: none !important;
}

.nerdin-wa-invite.is-visible {
    display: block;
}

.nerdin-wa-invite__close {
    position: absolute;
    top: 0.35rem;
    right: 0.35rem;
    width: 2rem;
    height: 2rem;
    border: 0;
    border-radius: 999px;
    background: transparent;
    color: #64748b;
    font-size: 1.35rem;
    line-height: 1;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.nerdin-wa-invite__close:hover,
.nerdin-wa-invite__close:focus-visible {
    color: #10254A;
    background: rgba(16, 37, 74, 0.06);
    outline: none;
}

.nerdin-wa-invite__body {
    display: flex;
    align-items: flex-start;
    gap: 0.65rem;
    padding-right: 1.5rem;
}

.nerdin-wa-invite__icon {
    flex-shrink: 0;
    width: 2.15rem;
    height: 2.15rem;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: #25D366;
    color: #fff;
    font-size: 1.15rem;
}

.nerdin-wa-invite__title {
    margin: 0;
    font-size: 0.92rem;
    font-weight: 700;
    line-height: 1.25;
}

.nerdin-wa-invite__text {
    margin: 0.15rem 0 0;
    font-size: 0.8rem;
    line-height: 1.35;
    color: #526074;
}

.nerdin-wa-invite__cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-top: 0.7rem;
    width: 100%;
    padding: 0.55rem 0.85rem;
    border-radius: 999px;
    background: #25D366;
    color: #fff !important;
    font-size: 0.8125rem;
    font-weight: 700;
    text-decoration: none;
    box-shadow: 0 2px 10px rgba(37, 211, 102, 0.25);
}

.nerdin-wa-invite__cta:hover {
    background: #1ebe57;
    color: #fff !important;
}

.nerdin-wa-invite__cta:focus-visible {
    outline: 2px solid rgba(16, 37, 74, 0.35);
    outline-offset: 2px;
}

/* Mobile: canto inferior esquerdo para reduzir conflito com FABs à direita */
@media (max-width: 991.98px) {
    .nerdin-wa-invite {
        right: auto;
        left: 0.75rem;
        width: min(16.5rem, calc(100vw - 1.5rem));
        padding: 0.75rem 0.8rem 0.8rem;
        bottom: max(1rem, env(safe-area-inset-bottom, 0px));
    }

    .nerdin-wa-invite__title {
        font-size: 0.88rem;
    }

    .nerdin-wa-invite__text {
        font-size: 0.76rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    .nerdin-wa-invite {
        transition: none !important;
    }
}