/* ============================================================
   Auditas — Header fijo (aparece al salir el logo del Hero)
   65px alto, fondo Blackdit, logo 55px alto centrado.
   ============================================================ */
#siteHeader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-h);
  z-index: 1000;
  background: var(--blackdit);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.35);
  transform: translateY(-100%);
  opacity: 0;
  visibility: hidden;
  transition: transform var(--t-med) var(--ease-out),
              opacity var(--t-med) var(--ease-out),
              visibility var(--t-med);
}
#siteHeader.is-visible {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

.header__logo {
  height: 34px;
  width: auto;
  display: block;
  transition: transform var(--t-med) var(--ease-spring), filter var(--t-med) var(--ease-out);
}
.header__logo:hover { transform: scale(1.04); }
.header__logo svg { height: 100%; width: auto; }
.header__logo img { height: 100%; width: auto; }

/* Empujar el ancla del formulario para que el header fijo no la tape */
:target { scroll-margin-top: calc(var(--header-h) + 16px); }