/* ── Kontaktformular ─────────────────────────────────────────────── */
.bio-kf {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.bio-kf__row--2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
@media (max-width: 540px) {
  .bio-kf__row--2 { grid-template-columns: 1fr; }
}

.bio-kf__field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.bio-kf__label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: #6b5e52;
  letter-spacing: 0.02em;
}
.bio-kf__label span { color: #9b8d78; }

.bio-kf__input {
  width: 100%;
  padding: 0.7rem 0.95rem;
  border: 1.5px solid #d4cfbe;
  border-radius: 7px;
  font-family: inherit;
  font-size: 0.9375rem;
  color: #3d3530;
  background: #fff;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
  outline: none;
  -webkit-appearance: none;
}
.bio-kf__input::placeholder { color: #b8ae99; }

.bio-kf__input:focus {
  border-color: #7a6d5e;
  box-shadow: 0 0 0 3px rgba(122, 109, 94, 0.12);
}
.bio-kf__input.is-invalid {
  border-color: #c0392b;
  box-shadow: 0 0 0 3px rgba(192, 57, 43, 0.1);
}

.bio-kf__textarea {
  resize: vertical;
  min-height: 130px;
}

/* Footer */
.bio-kf__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 0.25rem;
}

.bio-kf__pflicht {
  font-size: 0.78rem;
  color: #9b8d78;
  margin: 0;
}

/* Button */
.bio-kf__btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.78rem 1.9rem;
  background: #7a6d5e;
  color: #fff;
  border: none;
  border-radius: 7px;
  font-family: inherit;
  font-size: 0.9375rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.18s ease, transform 0.18s ease, box-shadow 0.18s ease;
  box-shadow: 0 2px 8px rgba(122, 109, 94, 0.22);
  white-space: nowrap;
}
.bio-kf__btn:hover {
  background: #6b5e52;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(122, 109, 94, 0.3);
}
.bio-kf__btn:active { transform: translateY(0); }
.bio-kf__btn:disabled {
  opacity: 0.65;
  cursor: not-allowed;
  transform: none;
}

/* Spinner */
.bio-kf__btn-spinner {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,0.35);
  border-top-color: #fff;
  border-radius: 50%;
  animation: bio-spin 0.7s linear infinite;
}
@keyframes bio-spin { to { transform: rotate(360deg); } }

/* Feedback-Meldung */
.bio-kf__feedback {
  padding: 0.85rem 1rem;
  border-radius: 7px;
  font-size: 0.9375rem;
  line-height: 1.5;
  margin-top: 0.25rem;
}
.bio-kf__feedback.is-success {
  background: #edf7ed;
  color: #2d6a2d;
  border: 1px solid #b7ddb7;
}
.bio-kf__feedback.is-error {
  background: #fdf0ef;
  color: #a93226;
  border: 1px solid #f1b0aa;
}