.register { max-width: 600px; margin: 60px auto; font-size: 14px; }

.register-invoice-data,
.register-delivery-data { display: none; }
  .register-invoice-data.active,
  .register-delivery-data.active { display: block; }

.register-ares { margin-top: 0.5rem; }
.register-ares-err { display: none; margin-top: 1rem; color: #d00; }
  .register-ares-err.active { display: block; }

/* Form layout */
.form { display: flex; flex-direction: column; }

/* 2-column rows (jméno + příjmení apod.) */
.form-row { display: flex; gap: 12px; }

  .form-row .form-field { flex: 1; }

/* Sections (invoice, delivery) */
.register-invoice-data,
.register-delivery-data { margin-top: 10px; padding: 20px; border: 1px solid #eee; border-radius: 8px; background: #fafafa; }

/* ARES button */
.register-ares { margin-top: 8px; }

/* Hidden sections default */
.register-invoice-data,
.register-delivery-data { display: none; }

.register .form-success { display: none; }

  .register .form-success.active { display: block; }

.form-input, .form-select, .form-textarea { max-width: unset; }