/* ===========================
   HEADER
   =========================== */

/* ===========================
   HEADER
   =========================== */

.header {
  background-color: transparent;
  border: none;
  position: fixed;
  top: clamp(1rem, 3vw, 2rem);
  left: 50%;
  transform: translateX(-50%);
  width: min(90%, 80rem);
  max-width: 100%;
  z-index: var(--z-fixed);
  box-shadow: none;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: clamp(0.875rem, 2vw, 1.125rem) clamp(1.25rem, 3vw, 2.25rem);
  background-color: rgba(3, 7, 18, 0.85);
  backdrop-filter: blur(32px);
  -webkit-backdrop-filter: blur(32px);
  border: 1px solid rgba(75, 85, 99, 0.25);
  border-radius: 3.125rem;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3),
              0 2px 8px rgba(0, 0, 0, 0.2);
}

.logo {
  display: flex;
  align-items: center;
}

.logo img {
  height: clamp(4rem, 10vw, 6.25rem);
  width: auto;
  object-fit: contain;
}

@media (min-width: 1024px) and (max-width: 1366px) {
  .header {
    width: min(92%, 62rem);
  }

  .header-content {
    padding: clamp(0.75rem, 1.8vw, 1rem) clamp(1.25rem, 2.5vw, 1.75rem);
  }

  .logo img {
    height: clamp(3.5rem, 8vw, 5rem);
  }

  .nav-link {
    font-size: clamp(0.9375rem, 1.8vw, 1rem);
  }

  .nav {
    gap: clamp(0.875rem, 1.8vw, 1.25rem);
  }
}

.nav {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2vw, 1.5rem);
}

.nav-link {
  color: var(--color-white);
  text-decoration: none;
  font-size: clamp(0.9375rem, 2vw, 1.0625rem);
  font-weight: var(--font-medium);
  transition: color var(--transition-base);
  position: relative;
  padding: 0.5rem 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-secondary), var(--color-link));
  transform: scaleX(0);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  transform-origin: left;
  border-radius: 2px;
}

.nav-link:hover {
  color: var(--color-secondary);
}

.nav-link:hover::after {
  transform: scaleX(1);
}

.nav-link.active {
  color: var(--color-secondary);
}

.nav-link.active::after {
  transform: scaleX(1);
}

.nav-separator {
  color: rgba(75, 85, 99, 0.4);
  font-weight: 300;
  user-select: none;
}

/* Toggle button para móvil */
button.nav-toggle,
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  align-items: stretch;
  gap: 0;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 4px 8px;
  z-index: var(--z-fixed);
  min-width: 44px;
  min-height: 44px;
  width: 40px;
  height: 32px;
  position: relative;
  outline: none;
}

button.nav-toggle span,
.nav-toggle span {
  display: block;
  width: 100%;
  min-width: 24px;
  height: 3px;
  min-height: 3px;
  background-color: var(--color-white);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: 2px;
  position: relative;
  transform-origin: center;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
  flex-shrink: 0;
}

button.nav-toggle.active span:nth-child(1),
.nav-toggle.active span:nth-child(1) {
  transform: translateY(10px) rotate(45deg);
}

button.nav-toggle.active span:nth-child(2),
.nav-toggle.active span:nth-child(2) {
  opacity: 0;
  transform: translateX(-100%);
}

button.nav-toggle.active span:nth-child(3),
.nav-toggle.active span:nth-child(3) {
  transform: translateY(-10px) rotate(-45deg);
}

/* ===========================
   RESPONSIVE HEADER
   =========================== */

@media (max-width: 1024px) {
  .header {
    top: clamp(0.75rem, 2vw, 1rem);
    width: min(95%, 100%);
  }

  .header-content {
    padding: clamp(0.75rem, 2vw, 1rem) clamp(1rem, 3vw, 1.5rem);
    flex-wrap: wrap;
  }

  .logo img {
    height: clamp(3.5rem, 8vw, 4.5rem);
  }

  button.nav-toggle,
  .nav-toggle {
    display: flex;
  }

  .nav {
    display: none;
    width: 100%;
    flex-direction: column;
    gap: 0;
    margin-top: clamp(0.75rem, 2vw, 1rem);
    padding-top: clamp(0.75rem, 2vw, 1rem);
    border-top: 1px solid rgba(75, 85, 99, 0.25);
  }

  /* Estilos para menú abierto - CRÍTICO */
  .nav.open,
  .nav.active {
    display: flex !important;
  }

  .nav.open {
    display: flex;
    animation: slideDown 0.3s ease-out;
  }

  @keyframes slideDown {
    from {
      opacity: 0;
      transform: translateY(-10px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  .nav-link {
    padding: clamp(0.75rem, 2vw, 1rem) 0;
    width: 100%;
    text-align: center;
    font-size: clamp(1rem, 2vw, 1.125rem);
  }

  .nav-separator {
    display: none;
  }

  .nav-link::after {
    bottom: 0;
  }
}

@media (min-width: 1440px) {
  .header {
    width: min(85%, 100rem);
  }

  .logo img {
    height: clamp(6rem, 12vw, 7rem);
  }
}