.panqueca-chat {
    --panqueca-chat-tail-left: 50%;
    --panqueca-chat-surface: rgba(250, 252, 255, 0.98);
    --panqueca-chat-border: rgba(26, 42, 64, 0.2);

    position: absolute;
    top: 0;
    left: 0;
    display: flex;
    flex-direction: column;
    width: 300px;
    max-width: calc(100vw - 24px);
    border: 1px solid var(--panqueca-chat-border);
    border-radius: 14px;
    /* Sem clipe, de proposito: o rabinho do balao vive fora da caixa, e era o
       overflow que o apagava. O teto de altura quem segura e a coluna flex — o
       log encolhe por `min-height: 0` e o campo de texto continua dentro, com
       folga: CHAT_MIN_HEIGHT e maior que o cabecalho mais o rodape juntos. */
    background: var(--panqueca-chat-surface);
    box-shadow: 0 16px 40px rgba(2, 10, 24, 0.32), 0 2px 8px rgba(2, 10, 24, 0.2);
    color: var(--text-dark);
    font-family: var(--font-family);
    opacity: 0;
    transform: translateY(4px);
    transition: opacity 160ms ease, transform 160ms ease;
    pointer-events: auto;
}

.panqueca-chat[hidden] {
    display: none !important;
}

.panqueca-chat.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.panqueca-chat::before,
.panqueca-chat::after {
    position: absolute;
    left: var(--panqueca-chat-tail-left);
    width: 0;
    height: 0;
    content: "";
    border-style: solid;
    transform: translateX(-50%);
}

.panqueca-chat[data-placement="above"]::before {
    bottom: -10px;
    border-width: 10px 9px 0;
    border-color: var(--panqueca-chat-border) transparent transparent;
}

.panqueca-chat[data-placement="above"]::after {
    bottom: -8px;
    border-width: 9px 8px 0;
    border-color: var(--panqueca-chat-surface) transparent transparent;
}

.panqueca-chat[data-placement="below"]::before {
    top: -10px;
    border-width: 0 9px 10px;
    border-color: transparent transparent var(--panqueca-chat-border);
}

.panqueca-chat[data-placement="below"]::after {
    top: -8px;
    border-width: 0 8px 9px;
    border-color: transparent transparent var(--panqueca-chat-surface);
}

.panqueca-chat__header {
    display: flex;
    flex: 0 0 auto;
    align-items: center;
    justify-content: space-between;
    padding: 9px 10px 5px 13px;
}

.panqueca-chat__title {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: rgba(31, 41, 55, 0.62);
}

.panqueca-chat__close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    padding: 0;
    border: 0;
    border-radius: 7px;
    background: transparent;
    color: rgba(31, 41, 55, 0.6);
    font-family: inherit;
    font-size: 17px;
    line-height: 1;
    cursor: pointer;
    transition: background-color 140ms ease, color 140ms ease;
}

.panqueca-chat__close:hover {
    background: rgba(26, 42, 64, 0.09);
    color: var(--text-dark);
}

.panqueca-chat__log {
    display: flex;
    flex: 1 1 auto;
    flex-direction: column;
    gap: 7px;
    /* min-height: 0 e o que deixa o log encolher quando a caixa tem teto. */
    min-height: 0;
    max-height: 196px;
    padding: 4px 13px 10px;
    overflow-y: auto;
    overscroll-behavior: contain;
    scrollbar-width: thin;
}

.panqueca-chat__line {
    max-width: 88%;
    font-size: 14px;
    line-height: 1.4;
    /* As falas mais desenvolvidas quebram linha de proposito, no ritmo em que
       ela fala. O texto continua entrando por textContent. */
    white-space: pre-line;
    overflow-wrap: anywhere;
}

.panqueca-chat__line--pet {
    align-self: flex-start;
    font-weight: 600;
    color: var(--text-dark);
}

.panqueca-chat__line--pet.is-silent {
    color: rgba(31, 41, 55, 0.42);
    letter-spacing: 0.14em;
}

.panqueca-chat__line--visitor {
    align-self: flex-end;
    padding: 5px 10px;
    border-radius: 11px 11px 3px 11px;
    background: rgba(96, 165, 250, 0.18);
    color: #12305c;
    font-weight: 500;
}

.panqueca-chat__thinking {
    display: flex;
    align-self: flex-start;
    align-items: baseline;
    padding: 3px 2px;
    color: rgba(31, 41, 55, 0.5);
    font-size: 13px;
    font-style: italic;
    letter-spacing: 0.01em;
}

.panqueca-chat__thinking i {
    font-style: normal;
    animation: panqueca-chat-blink 1.05s infinite ease-in-out;
}

.panqueca-chat__thinking i:nth-of-type(2) {
    animation-delay: 0.18s;
}

.panqueca-chat__thinking i:nth-of-type(3) {
    animation-delay: 0.36s;
}

@keyframes panqueca-chat-blink {
    0%,
    70%,
    100% {
        opacity: 0.28;
    }

    35% {
        opacity: 1;
    }
}

.panqueca-chat__form {
    display: flex;
    flex: 0 0 auto;
    gap: 6px;
    align-items: center;
    padding: 8px 10px 10px;
    border-top: 1px solid rgba(26, 42, 64, 0.12);
}

.panqueca-chat__input {
    flex: 1 1 auto;
    min-width: 0;
    height: 32px;
    padding: 0 10px;
    border: 1px solid rgba(26, 42, 64, 0.18);
    border-radius: 9px;
    background: #fff;
    color: var(--text-dark);
    font-family: inherit;
    font-size: 14px;
}

.panqueca-chat__input::placeholder {
    color: rgba(31, 41, 55, 0.42);
}

.panqueca-chat__send {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    padding: 0;
    border: 0;
    border-radius: 9px;
    background: rgba(96, 165, 250, 0.2);
    color: #12305c;
    font-family: inherit;
    font-size: 15px;
    line-height: 1;
    cursor: pointer;
    transition: background-color 140ms ease, opacity 140ms ease;
}

.panqueca-chat__send:hover:not(:disabled) {
    background: rgba(96, 165, 250, 0.34);
}

.panqueca-chat__send:disabled {
    opacity: 0.42;
    cursor: default;
}

.panqueca-chat__close:focus-visible,
.panqueca-chat__send:focus-visible,
.panqueca-chat__input:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

.panqueca-chat__input:focus-visible {
    border-color: var(--accent-color);
}

@media (pointer: coarse) {
    .panqueca-chat {
        width: min(380px, calc(100vw - 20px));
    }

    .panqueca-chat__log {
        max-height: 168px;
    }

    .panqueca-chat__input {
        height: 38px;
        /* 16px evita o zoom automatico do iOS ao focar o campo. */
        font-size: 16px;
    }

    .panqueca-chat__send,
    .panqueca-chat__close {
        width: 38px;
        height: 38px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .panqueca-chat {
        transition: none;
    }

    .panqueca-chat__close,
    .panqueca-chat__send {
        transition: none;
    }

    .panqueca-chat__thinking i {
        animation: none;
        opacity: 0.6;
    }
}