/* Histórico de cobranças: escopo exclusivo da aba Mensagens. */
#panel-mensagens .message-history {
    margin-top: 28px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
    min-width: 0;
}
#panel-mensagens .message-history-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
}
#panel-mensagens .message-history-header > div:first-child { flex: 1 1 320px; }
#panel-mensagens .message-history h3 { font-size: var(--fs-base); margin-bottom: 8px; }
#panel-mensagens .message-history p,
#panel-mensagens #message-failures-count { color: var(--text-secondary); font-size: var(--fs-xs); line-height: 1.6; }
#panel-mensagens .message-history-note { margin-top: 12px; }
#panel-mensagens .message-history-filters { display: flex; flex-wrap: wrap; gap: 12px; }
#panel-mensagens .message-history-filters label { display: flex; flex-direction: column; gap: 6px; color: var(--text-secondary); font-size: var(--fs-xs); }
#panel-mensagens .message-history-filters select,
#panel-mensagens .message-history-pagination button {
    padding: 10px 12px;
    min-height: 42px;
    font: inherit;
    color: var(--text-primary);
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 10px;
}
#panel-mensagens .message-history-pagination button { cursor: pointer; }
#panel-mensagens .message-history-pagination button:disabled { opacity: .45; cursor: default; }
#panel-mensagens .message-history-list { display: grid; gap: 14px; margin-top: 18px; min-width: 0; }
#panel-mensagens .message-history-card { padding: 18px; border: 1px solid var(--border); border-radius: 14px; background: var(--bg-glass); min-width: 0; overflow-wrap: anywhere; }
#panel-mensagens .message-history-card-head { display: grid; grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 1fr)); gap: 16px; margin-bottom: 18px; }
#panel-mensagens .message-history-card-head h4,
#panel-mensagens .message-history-card-head strong { font-size: var(--fs-sm); font-weight: 600; }
#panel-mensagens .message-history-key,
#panel-mensagens .message-history-details { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px 18px; margin: 0; }
#panel-mensagens .message-history-card dt { color: var(--text-muted); font-size: var(--fs-xs); margin-bottom: 5px; }
#panel-mensagens .message-history-card dd { color: var(--text-primary); font-size: var(--fs-sm); margin: 0; line-height: 1.5; white-space: pre-wrap; }
#panel-mensagens .message-history-receipt { margin-top: 14px; }
#panel-mensagens .message-history-card details { border-top: 1px solid var(--border); margin-top: 14px; padding-top: 8px; }
#panel-mensagens .message-history-card summary { color: var(--accent); cursor: pointer; padding: 10px 0; font-size: var(--fs-sm); }
#panel-mensagens .message-history-card summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
#panel-mensagens .message-history-details { margin-top: 10px; }
/* Um cartão por envio; cada canal (WhatsApp, e-mail) é uma linha dentro dele. */
#panel-mensagens .message-history-channels { display: grid; gap: 10px; margin: 16px 0 0; padding: 0; list-style: none; min-width: 0; }
#panel-mensagens .message-history-channel-item { padding: 12px 14px; border: 1px solid var(--border); border-radius: 10px; background: var(--bg-secondary); min-width: 0; }
#panel-mensagens .message-history-channel-head { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 12px; min-width: 0; }
#panel-mensagens .message-history-channel-head strong { color: var(--text-primary); font-size: var(--fs-sm); font-weight: 600; }
#panel-mensagens .message-history-channel-item .message-history-times,
#panel-mensagens .message-history-channel-item .message-history-bundle,
#panel-mensagens .message-history-channel-item .message-history-receipt { margin-top: 6px; }
#panel-mensagens .message-history-channel-item .message-history-bundle { color: var(--text-primary); }
#panel-mensagens .message-history-channel-item details { margin-top: 10px; padding-top: 2px; }
#panel-mensagens .message-summary-table .message-grouped-note { display: block; margin-top: 4px; white-space: normal; }
#panel-mensagens .message-history-pagination { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-top: 18px; font-size: var(--fs-xs); color: var(--text-secondary); }
#panel-mensagens .message-history-pagination span { text-align: center; }
#panel-mensagens .message-reason { white-space: normal; overflow-wrap: anywhere; }
@media (max-width: 768px) {
    #panel-mensagens .message-history-card-head { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
    #panel-mensagens .message-history-key,
    #panel-mensagens .message-history-details { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    #panel-mensagens .message-history-filters { width: 100%; }
    #panel-mensagens .message-history-filters label { flex: 1 1 120px; min-width: 0; }
    #panel-mensagens .message-history-filters select { width: 100%; }
    #panel-mensagens .message-history-pagination { flex-wrap: wrap; }
    #panel-mensagens .message-history-pagination span { order: -1; width: 100%; }
}
@media (max-width: 420px) {
    #panel-mensagens .message-history-card-head,
    #panel-mensagens .message-history-key,
    #panel-mensagens .message-history-details { grid-template-columns: minmax(0, 1fr); }
    #panel-mensagens .message-history-channel-item { padding: 12px; }
    #panel-mensagens .message-history-card { padding: 18px; border-radius: 20px; }
}