/* ==========================================================================
   E-Rechnung erstellen — Formular
   ==========================================================================
   Ergänzt den Assistenten-Baukasten aus tools.css (bf-*) um das, was ein
   langes Formular braucht: Feldgruppen, ein zweispaltiges Raster, die
   Positionsliste und die Summen. Farben und Rundungen kommen aus den Marken
   von tools.css (--bf-*, --service-*), nur 0, 2 und 4 Pixel Rundung.
   ========================================================================== */

.er-formular [id] {
  scroll-margin-top: var(--bf-sprung, 9rem);
}

/* Feldgruppen: sichtbar getrennt, aber ohne Kasten im Kasten. */
.er-gruppe {
  border: 0;
  border-top: 1px solid var(--service-line);
  margin: 0 0 1.4rem;
  padding: 0.7rem 0 0;
  min-width: 0;
}
.bf-karte-leib > .er-gruppe:first-of-type {
  margin-top: 1.4rem;
}
.er-gruppe > .bf-feld-hilfe {
  margin: 0 0 1rem;
}
.er-gruppe > legend {
  font-family: var(--service-display);
  font-size: 1.1rem;
  font-weight: 660;
  padding: 0 0.6rem 0 0;
  margin-bottom: 0.4rem;
}
.er-gruppe > legend:focus-visible {
  outline: 3px solid var(--service-green);
  outline-offset: 4px;
}

.er-raster {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.2rem 1.2rem;
}
@media (min-width: 40rem) {
  .er-raster {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .er-breit {
    grid-column: 1 / -1;
  }
}

.er-feld {
  display: flex;
  flex-direction: column;
  min-width: 0;
  margin-bottom: 0.8rem;
}
.er-feld[hidden] {
  display: none;
}
.er-feld .bf-feld-hilfe {
  margin: 0 0 0.4rem;
}
.er-feld .bf-input {
  flex: none;
  width: 100%;
}
.er-feld .bf-feldfehler {
  margin: 0.4rem 0 0;
}
.er-mehrzeilig {
  resize: vertical;
  min-height: 4.5rem;
  line-height: 1.5;
}

.er-stern {
  color: var(--bf-rot);
}
.er-optional {
  font-family: var(--service-body);
  font-weight: 400;
  color: var(--service-ink-soft);
  font-size: 0.92rem;
}

.er-formular .bf-input:focus-visible,
.er-formular select.bf-input:focus-visible {
  outline: 3px solid var(--service-green);
  outline-offset: 2px;
}
.er-formular .bf-input[aria-invalid="true"] {
  border-color: var(--bf-rot);
  box-shadow: inset 0 0 0 1px var(--bf-rot);
}
.er-formular select.bf-input {
  appearance: auto;
}

/* Häkchen mit Titel und Zweitzeile, gleiche Sprache wie die Antwortflächen. */
.er-haken {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.8rem;
  align-items: start;
  border: 1px solid var(--service-line);
  border-radius: var(--bf-r);
  padding: 0.85rem 1rem;
  margin-top: 0.4rem;
  cursor: pointer;
  background: #fff;
}
.er-haken:has(input:checked) {
  border-color: var(--service-green);
  background: var(--service-green-pale);
}
.er-haken input {
  margin-top: 0.2rem;
  width: 1.15rem;
  height: 1.15rem;
  accent-color: var(--service-green);
}
.er-haken-titel {
  display: block;
  font-family: var(--service-display);
  font-weight: 620;
}
.er-haken-zusatz {
  display: block;
  color: var(--service-ink-soft);
  font-size: 0.92rem;
  margin-top: 0.15rem;
}

/* Auswahl Tag oder Zeitraum. */
.er-wahl {
  border: 0;
  margin: 0.2rem 0 0.8rem;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.4rem;
}
.er-wahl > legend {
  padding: 0;
  margin-bottom: 0.4rem;
}
.er-wahl-option {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 2.75rem;
  cursor: pointer;
}
.er-wahl-option input {
  width: 1.15rem;
  height: 1.15rem;
  accent-color: var(--service-green);
}

/* ---------- Positionen ---------- */

.er-positionen {
  display: grid;
  gap: 0.8rem;
  margin: 0.6rem 0 1rem;
}
.er-position {
  border: 1px solid var(--service-line);
  border-radius: var(--bf-r);
  padding: 0.4rem 1rem 0.2rem;
  margin: 0;
  min-width: 0;
  background: #fff;
}
.er-position > legend {
  font-family: var(--service-display);
  font-weight: 660;
  font-size: 0.95rem;
  padding: 0 0.4rem;
}
.er-position-kopf {
  display: flex;
  justify-content: flex-end;
  margin: -0.2rem 0 0.2rem;
}
.er-position-raster {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.2rem 0.9rem;
}
.er-position-raster .er-breit {
  grid-column: 1 / -1;
}
@media (min-width: 40rem) {
  .er-position-raster {
    grid-template-columns: 7rem 10rem minmax(0, 1fr) minmax(0, 1.4fr);
  }
}
.er-position-netto {
  grid-column: 1 / -1;
  margin: 0 0 0.6rem;
  text-align: right;
  color: var(--service-ink-soft);
  font-size: 1rem;
}
.er-position-netto strong {
  color: var(--service-ink);
  font-variant-numeric: tabular-nums;
}
.er-steuer-ku {
  display: none;
  padding: 0.8rem 0;
  color: var(--service-ink-soft);
}
.ist-kleinunternehmer .er-steuer-feld {
  display: none;
}
.ist-kleinunternehmer .er-steuer-ku {
  display: block;
}

.er-befreiung {
  margin-top: 1rem;
}

/* ---------- Summen ---------- */

.er-summen {
  border: 1px solid var(--service-line);
  border-radius: var(--bf-r);
  background: var(--service-paper-strong);
  padding: 1rem 1.2rem;
  margin: 0.4rem 0 0;
}
.er-summen-titel {
  font-family: var(--service-display);
  font-size: 1rem;
  font-weight: 660;
  margin: 0 0 0.2rem;
}
.er-summen .bf-beleg-summen {
  border-top: 0;
  padding-top: 0.4rem;
  margin-top: 0;
}

/* ---------- Ergebnis ---------- */

.er-download {
  border: 1px solid var(--service-line);
  border-radius: var(--bf-r);
  padding: 1rem 1.2rem;
  margin: 0 0 1.6rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  align-items: center;
}
.er-download[hidden] {
  display: none;
}
.er-download .bf-fussnote {
  flex-basis: 100%;
  margin: 0.2rem 0 0;
}
.er-download .bf-fussnote:empty {
  display: none;
}
.er-abstand {
  margin-top: 0.4rem;
}
.er-formular .bf-antwortliste {
  margin-bottom: 1.6rem;
}
.er-formular .bf-antwortliste dd {
  font-weight: 400;
  overflow-wrap: anywhere;
}
.er-formular .bf-antwortliste dd strong {
  font-weight: 620;
}

.er-xml {
  margin: 0 0 1.4rem;
}
.er-xml summary {
  cursor: pointer;
  font-family: var(--service-display);
  font-weight: 600;
  color: var(--service-green-dark);
  padding: 0.5rem 0;
  min-height: 2.75rem;
}
.er-xml pre {
  max-height: 24rem;
  overflow: auto;
  margin: 0.4rem 0 0;
  padding: 0.9rem 1rem;
  border: 1px solid var(--service-line);
  border-radius: var(--bf-r-klein);
  background: var(--service-paper-strong);
  font-family: ui-monospace, Menlo, monospace;
  font-size: 0.8rem;
  line-height: 1.45;
  white-space: pre;
}
.er-xml pre:focus-visible {
  outline: 2px solid var(--service-green-dark);
  outline-offset: 3px;
}

/* ---------- Entwurf merken ---------- */

.er-merken {
  max-width: 46rem;
  margin: 1.2rem auto 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem 1.2rem;
}
.er-merken .er-haken {
  flex: 1 1 22rem;
  margin: 0;
}
.er-merken .bf-fussnote {
  flex-basis: 100%;
  margin: 0;
}
.er-merken .bf-fussnote:empty {
  display: none;
}

/* ---------- Wissen ---------- */

.er-liste {
  margin: 0 0 1rem;
  padding-left: 1.2rem;
}
.er-liste li {
  margin-bottom: 0.5rem;
}
.er-quelle {
  color: var(--service-ink-soft);
  font-size: 0.95rem;
}
.er-faq h4 {
  font-family: var(--service-display);
  font-size: 1.05rem;
  font-weight: 650;
  margin: 1.4rem 0 0.4rem;
}

@media (max-width: 30rem) {
  .er-position {
    padding: 0.3rem 0.75rem 0.1rem;
  }
  .er-summen {
    padding: 0.9rem;
  }
  .er-download .bf-btn {
    width: 100%;
    justify-content: center;
  }
}