header.main-header {
  text-align: left;
  border: none; 
  border-bottom: 2px solid #e0e0e0;
  background-color: rgba(0, 0, 0, 0.14);
  width: 100%;
  margin: 0;
  padding: 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: all 0.3s ease;
}

header.main-header.scrolled {
  background-color: rgba(255, 255, 255, 0.98);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  border-bottom: 2px solid #e0e0e0;
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  gap: 30px;
  max-width: 1150px;
  margin: 0 auto;
  width: 100%;
}

.header-brand {
  display: flex;
  align-items: center;
  padding-top: 18px;
}

h1.visually-hidden {
  display: none;
}

a.logo-a {
  text-decoration: none;
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  width: fit-content;
}

#logo-principal-left {
  zoom: 0.06;
  clip-path: inset(0 0 25% 0);
  display: block;
}

#logo-principal-right {
  zoom: 0.06;
  clip-path: inset(75% 0 0 0);
  display: block;
  margin-top: -20%;
  margin-left: -5%;
}

.main-nav {
  flex-grow: 1;
  display: flex;
  align-items: center;
  gap: 30px;
  padding-top: 0px;  
}

.nav-list {
  list-style-type: none;
  align-items: center;
  display: flex;
  gap: 30px;
  padding: 0;
  margin: 0;
}

.nav-item a {
  font-family: 'Arial', sans-serif;
  font-size: 18px;
  font-weight: 100;
  color: #333;
  text-decoration: none;
  letter-spacing: 1px;
}

.nav-item a:hover {
  color: red;
}

.nav-actions {
  display: flex;
  gap: 5px;
  align-items: center;
}

.buscar-btn,
.socio-btn,
.ayuda-btn {
  background: transparent;
  border: none;
  font-size: 30px;
  cursor: pointer;
  padding: 5px;
  transition: transform 0.2s ease;
}

.buscar-btn:hover,
.socio-btn:hover,
.ayuda-btn:hover {
  transform: scale(1.1);
}