/* =============================================
   NEIX Middle Office -- nav.css
   Nav superior + tab bar + footer.
   ============================================= */

nav {
  position: sticky;
  top: 0;
  z-index: 200;
  background: var(--grafito);
  padding: 0 var(--pad-x);
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.nav-logo {
  width: 68px;
  flex-shrink: 0;
  display: block;
}
.nav-logo svg {
  width: 100%;
  height: auto;
  display: block;
}
.nav-right {
  display: flex;
  align-items: center;
  gap: 14px;
}
.nav-brand {
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.28);
  font-weight: 500;
}
.nav-sep {
  width: 1px;
  height: 14px;
  background: rgba(255, 255, 255, 0.12);
}
.nav-area {
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.48);
  font-weight: 500;
}

.tab-bar {
  position: sticky;
  top: 64px;
  z-index: 190;
  background: var(--grafito);
  padding: 0 var(--pad-x);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: flex-end;
}
.tab-btn {
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 500;
  font-family: var(--ff-sans);
  color: rgba(255, 255, 255, 0.3);
  background: none;
  border: none;
  cursor: pointer;
  padding: 14px 22px 13px;
  border-bottom: 2px solid transparent;
  transition:
    color 0.18s,
    border-color 0.18s;
}
.tab-btn:hover {
  color: rgba(255, 255, 255, 0.6);
}
.tab-btn.active {
  color: var(--crema);
  border-bottom-color: var(--bordeaux);
}

footer {
  padding: 22px var(--pad-x);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--gris-claro);
}
.footer-label {
  font-size: 11px;
  color: var(--arena);
  letter-spacing: 0.06em;
}
.footer-logo {
  width: 50px;
}
.footer-logo svg {
  width: 100%;
  height: auto;
  display: block;
}

@media (max-width: 600px) {
  nav {
    height: 56px;
  }
  .nav-logo {
    width: 56px;
  }
  .nav-brand {
    display: none;
  }
  .tab-bar {
    top: 56px;
    overflow-x: auto;
  }
  .tab-btn {
    padding: 12px 14px 11px;
    white-space: nowrap;
  }
}