.pl-chat {
    position: fixed;
    right: 18px;
    bottom: 18px;
    z-index: 60;
    font: 14px/1.4 var(--font-sans, "Segoe UI", system-ui, sans-serif);
}

.pl-chat__fab {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    border: 0;
    border-radius: 999px;
    background: var(--color-primary, #111827);
    color: #fff;
    font: inherit;
    font-weight: 700;
    cursor: pointer;
    box-shadow: var(--shadow-md, 0 8px 24px rgba(15, 23, 42, 0.15));
}

.pl-chat__fab svg {
    width: 18px;
    height: 18px;
}

.pl-chat__panel {
    position: absolute;
    right: 0;
    bottom: 58px;
    width: min(360px, calc(100vw - 24px));
    height: min(480px, calc(100vh - 100px));
    display: flex;
    flex-direction: column;
    background: var(--color-surface, #fff);
    border: 1px solid var(--color-border, #e5e7eb);
    border-radius: 16px;
    box-shadow: var(--shadow-md, 0 8px 24px rgba(15, 23, 42, 0.15));
    overflow: hidden;
}

.pl-chat__panel[hidden] {
    display: none !important;
}

.pl-chat__head {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 16px;
    background: var(--color-surface-soft, #f8fafc);
    border-bottom: 1px solid var(--color-border, #e5e7eb);
}

.pl-chat__head strong {
    display: block;
}

.pl-chat__head small {
    color: var(--color-muted, #6b7280);
}

.pl-chat__close {
    border: 0;
    background: transparent;
    font-size: 22px;
    line-height: 1;
    cursor: pointer;
    color: var(--color-muted, #6b7280);
}

.pl-chat__messages {
    flex: 1;
    overflow-y: auto;
    padding: 14px;
    display: grid;
    gap: 10px;
    align-content: start;
    background: var(--color-background, #f3f4f6);
}

.pl-chat__bubble {
    max-width: 88%;
    padding: 10px 12px;
    border-radius: 12px;
    background: #fff;
    border: 1px solid var(--color-border, #e5e7eb);
}

.pl-chat__bubble span {
    display: block;
    font-size: 11px;
    font-weight: 700;
    color: var(--color-muted, #6b7280);
    margin-bottom: 4px;
}

.pl-chat__bubble p {
    margin: 0;
    white-space: pre-wrap;
    word-break: break-word;
}

.pl-chat__bubble--customer {
    justify-self: end;
    background: color-mix(in srgb, var(--color-primary, #111827) 8%, #fff);
}

.pl-chat__bubble--agent,
.pl-chat__bubble--automation {
    justify-self: start;
}

.pl-chat__bubble--system {
    justify-self: center;
    background: transparent;
    border-style: dashed;
    font-size: 12px;
    color: var(--color-muted, #6b7280);
}

.pl-chat__form {
    display: flex;
    gap: 8px;
    padding: 10px 12px;
    border-top: 1px solid var(--color-border, #e5e7eb);
    background: #fff;
}

.pl-chat__form input {
    flex: 1;
    min-width: 0;
    border: 1px solid var(--color-border-strong, #d1d5db);
    border-radius: 10px;
    padding: 10px 12px;
    font: inherit;
}

.pl-chat__form button {
    border: 0;
    border-radius: 10px;
    background: var(--color-primary, #111827);
    color: #fff;
    padding: 0 14px;
    cursor: pointer;
    font: inherit;
}

.pl-chat__actions {
    padding: 0 12px 10px;
    background: #fff;
}

.pl-chat__link {
    border: 0;
    background: transparent;
    color: var(--color-primary, #111827);
    font: inherit;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: underline;
}

.pl-chat__error {
    color: var(--color-danger, #b91c1c);
}

@media (max-width: 520px) {
    .pl-chat {
        right: 10px;
        bottom: 10px;
        left: 10px;
    }

    .pl-chat__fab {
        width: 100%;
        justify-content: center;
    }

    .pl-chat__panel {
        right: 0;
        left: 0;
        width: auto;
        bottom: 56px;
        height: min(70vh, 520px);
    }
}