:root {
    --panel-color: rgba(0, 0, 0, 0.135);
    --panel-border-width: 0.1em;
    --panel-padding: 0.75em;
}

.panel__geral {
    background: var(--panel-color);
    border-radius: var(--panel-border-width);
    padding: var(--panel-border-width);
}

.panel__header,
.panel__content {
    padding: var(--panel-padding);
}

.panel__title {
    line-height: 1;
}

.panel__content {
    background: #fff;
}