/**
 * Modulo: menu superior.
 * Estilos solo del header/nav. Variables globales vienen de app.css.
 */
.site-header {
  background: var(--white);
  border-bottom: 1px solid var(--gray-light);
  padding: 0.75rem 1rem;
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}
.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--blue-deep);
  font-weight: 600;
}
.logo-img { display: block; height: 80px; width: auto; }
.logo-text { font-family: var(--font-serif); font-size: 1.25rem; }
.logo-tagline { font-size: 0.85rem; color: var(--coral); font-weight: 500; margin-left: 0.25rem; }
.nav-main { display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap; }
.nav-link {
  color: var(--blue-deep);
  text-decoration: none;
  padding: 0.35rem 0.6rem;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
}
.nav-link:hover { background: var(--off-white); color: var(--coral); }
.nav-link.active { background: var(--off-white); color: var(--coral); font-weight: 500; }
.nav-admin { color: var(--aqua); }

/* Hamburguesa: solo visible en móvil */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  border: none;
  background: transparent;
  color: var(--blue-deep);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: background 0.2s ease;
}
.nav-toggle:hover { background: var(--off-white); }
.nav-toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background: currentColor;
  border-radius: 1px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.site-header.nav-open .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.site-header.nav-open .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}
.site-header.nav-open .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Móvil: hamburguesa visible, menú desplegable */
@media (max-width: 767px) {
  .nav-toggle { display: flex; }
  .nav-main {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.5rem 1rem 1rem;
    background: var(--white);
    border-bottom: 1px solid var(--gray-light);
    box-shadow: 0 4px 12px rgba(26, 54, 93, 0.08);
  }
  .site-header.nav-open .nav-main {
    display: flex;
  }
  .nav-main .nav-link,
  .nav-main .btn {
    display: block;
    padding: 0.6rem 0.75rem;
    border-radius: var(--radius-sm);
    text-align: left;
  }
}