/* ===== VARIABLES CSS ===== */
:root {
  /* Colores */
  --color-verde-olivo: #556B2F;
  --color-gris-claro: #E5E4E2;
  --color-azul-electrico: #00FFFF;
  --color-gris-oscuro: #1C2A3A;
  
  /* Tipografías */
  --font-heading: 'Oswald', sans-serif;
  --font-body: 'Roboto', sans-serif;
  
  /* Tamaños de fuente */
  --font-size-xl: 3rem;
  --font-size-lg: 2.5rem;
  --font-size-md: 1.5rem;
  --font-size-sm: 1rem;
  --font-size-xs: 0.875rem;
  
  /* Espaciado */
  --spacing-xs: 0.5rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 0.5rem;
  --spacing-lg: 0.5rem;
  --spacing-xl: 1.5rem;
  
  /* Transiciones */
  --transition-fast: 0.3s ease;
  --transition-medium: 0.5s ease;
  --transition-slow: 0.8s ease;
  
  /* Z-index */
  --z-header: 1000;
  --z-menu: 1100;
  --z-overlay: 1050;
}

/* ===== RESET Y BASE ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-gris-claro);
  color: var(--color-gris-oscuro);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ===== HEADER ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(28, 42, 58, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0, 255, 255, 0.2);
  z-index: var(--z-header);
  transition: all var(--transition-fast);
}

.header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, 
    rgba(0, 255, 255, 0.1) 0%, 
    transparent 50%, 
    rgba(0, 255, 255, 0.1) 100%);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.header:hover::before {
  opacity: 1;
}

/* ===== NAVEGACIÓN ===== */
.nav {
  height: 70px;
  display: flex;
  align-items: center;
}

.nav__container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* ===== LOGO ===== */
.nav__logo {
  position: relative;
}

.nav__logo-link {
  text-decoration: none;
  color: inherit;
  display: block;
  transition: opacity 0.3s ease;
}

.nav__logo-link:hover {
  opacity: 0.8;
}

.nav__logo-link:focus {
  outline: 2px solid var(--color-azul-electrico);
  outline-offset: 2px;
  border-radius: 4px;
}

.nav__logo-text {
  font-family: var(--font-heading);
  font-size: var(--font-size-md);
  font-weight: 600;
  color: var(--color-azul-electrico);
  text-transform: uppercase;
  letter-spacing: 2px;
  position: relative;
  transition: all var(--transition-fast);
}

.nav__logo-text::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-azul-electrico), var(--color-verde-olivo));
  transition: width var(--transition-fast);
}

.nav__logo:hover .nav__logo-text::after {
  width: 100%;
}

/* ===== BOTÓN HAMBURGUESA ===== */
.nav__toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  position: relative;
  transition: all var(--transition-fast);
}

.nav__toggle:hover {
  transform: scale(1.1);
}

.nav__toggle-line {
  width: 25px;
  height: 2px;
  background: var(--color-azul-electrico);
  margin: 3px 0;
  transition: all var(--transition-fast);
  position: relative;
  transform-origin: center;
}

.nav__toggle-line::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-azul-electrico);
  box-shadow: 0 0 10px var(--color-azul-electrico);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.nav__toggle:hover .nav__toggle-line::before {
  opacity: 1;
}

/* Animación del botón hamburguesa cuando está activo */
.nav__toggle.active .nav__toggle-line:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

.nav__toggle.active .nav__toggle-line:nth-child(2) {
  opacity: 0;
}

.nav__toggle.active .nav__toggle-line:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* ===== MENÚ FULLSCREEN ===== */
.nav__menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: linear-gradient(135deg, 
    var(--color-gris-oscuro) 0%, 
    rgba(28, 42, 58, 0.98) 50%, 
    var(--color-gris-oscuro) 100%);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-menu);
  opacity: 0;
  visibility: hidden;
  transform: scale(0.8);
  transition: all var(--transition-medium);
}

.nav__menu.active {
  opacity: 1;
  visibility: visible;
  transform: scale(1);
}

.nav__menu-container {
  text-align: center;
  position: relative;
  width: 100%;
  max-width: 600px;
  padding: var(--spacing-lg);
}

/* ===== BOTÓN CERRAR ===== */
.nav__close {
  position: absolute;
  top: var(--spacing-lg);
  right: var(--spacing-lg);
  background: none;
  border: none;
  cursor: pointer;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.nav__close:hover {
  transform: rotate(90deg) scale(1.1);
}

.nav__close-line {
  position: absolute;
  width: 25px;
  height: 2px;
  background: var(--color-azul-electrico);
  transition: all var(--transition-fast);
}

.nav__close-line:nth-child(1) {
  transform: rotate(45deg);
}

.nav__close-line:nth-child(2) {
  transform: rotate(-45deg);
}

.nav__close:hover .nav__close-line {
  box-shadow: 0 0 15px var(--color-azul-electrico);
}

/* ===== LISTA DE NAVEGACIÓN ===== */
.nav__list {
  list-style: none;
  margin: var(--spacing-xl) 0;
}

.nav__item {
  margin: var(--spacing-lg) 0;
  position: relative;
  opacity: 0;
  transform: translateY(30px);
  animation: slideInUp 0.6s ease forwards;
}

.nav__item:nth-child(1) { animation-delay: 0.1s; }
.nav__item:nth-child(2) { animation-delay: 0.2s; }
.nav__item:nth-child(3) { animation-delay: 0.3s; }
.nav__item:nth-child(4) { animation-delay: 0.4s; }
.nav__item:nth-child(5) { animation-delay: 0.5s; }

@keyframes slideInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.nav__link {
  font-family: var(--font-heading);
  font-size: var(--font-size-lg);
  font-weight: 400;
  color: var(--color-gris-claro);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 3px;
  position: relative;
  display: inline-block;
  transition: all var(--transition-fast);
  padding: var(--spacing-xs) var(--spacing-sm);
}

.nav__link::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-azul-electrico), var(--color-verde-olivo));
  transition: all var(--transition-fast);
  transform: translateX(-50%);
}

.nav__link:hover {
  color: var(--color-azul-electrico);
  text-shadow: 0 0 20px rgba(0, 255, 255, 0.5);
  transform: translateY(-5px);
}

.nav__link:hover::before {
  width: 100%;
}

/* ===== DROPDOWN ===== */
.nav__item--dropdown {
  position: relative;
}

.nav__dropdown {
  list-style: none;
  margin-top: var(--spacing-sm);
  opacity: 0;
  max-height: 0;
  overflow: hidden;
  transition: all var(--transition-fast);
}

.nav__item--dropdown:hover .nav__dropdown,
.nav__item--dropdown.nav__item--active .nav__dropdown {
  opacity: 1;
  max-height: 200px;
}

.nav__dropdown-item {
  margin: var(--spacing-xs) 0;
}

.nav__dropdown-link {
  font-family: var(--font-body);
  font-size: var(--font-size-sm);
  color: var(--color-verde-olivo);
  text-decoration: none;
  letter-spacing: 1px;
  transition: all var(--transition-fast);
  display: inline-block;
  padding: var(--spacing-xs);
}

.nav__dropdown-link:hover {
  color: var(--color-azul-electrico);
  transform: translateX(10px);
}

/* ===== CONTACTO EN MENÚ ===== */
.nav__contact {
  margin-top: var(--spacing-xl);
  opacity: 0;
  transform: translateY(30px);
  animation: slideInUp 0.6s ease forwards;
  animation-delay: 0.6s;
}

.nav__contact-text {
  font-family: var(--font-body);
  color: var(--color-gris-claro);
  margin-bottom: var(--spacing-sm);
  font-size: var(--font-size-sm);
}

.nav__contact-btn {
  display: inline-block;
  background: linear-gradient(45deg, var(--color-azul-electrico), var(--color-verde-olivo));
  color: var(--color-gris-oscuro);
  padding: var(--spacing-sm) var(--spacing-lg);
  text-decoration: none;
  font-family: var(--font-heading);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1px;
  border-radius: 30px;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.nav__contact-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(45deg, var(--color-verde-olivo), var(--color-azul-electrico));
  transition: left var(--transition-fast);
  z-index: -1;
}

.nav__contact-btn:hover::before {
  left: 0;
}

.nav__contact-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(0, 255, 255, 0.3);
}

/* ===== OVERLAY ===== */
.nav__overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: rgba(0, 0, 0, 0.8);
  z-index: var(--z-overlay);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
}

.nav__overlay.active {
  opacity: 1;
  visibility: visible;
}

/* ===== MAIN CONTENT ===== */
.main {
  margin-top: 70px;
}

.hero {
  height: calc(100vh - 70px);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  margin-bottom: 0;
}

/* Background Image Styles */
.hero__image-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  overflow: hidden;
}

.hero__background-image {
  position: absolute;
  top: 50%;
  left: 50%;
  min-width: 100%;
  min-height: 100%;
  width: auto;
  height: auto;
  transform: translate(-50%, -50%);
  z-index: 1;
  object-fit: cover;
}

/* Video Overlay */
.hero__overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, 
    rgba(28, 42, 58, 0.7) 0%, 
    rgba(85, 107, 47, 0.6) 50%,
    rgba(0, 255, 255, 0.3) 100%);
  z-index: 2;
}

.hero__container {
  text-align: center;
  position: relative;
  z-index: 3;
}

.hero__title {
  font-family: var(--font-heading);
  font-size: var(--font-size-xl);
  color: white;
  margin-bottom: var(--spacing-sm);
  text-transform: uppercase;
  letter-spacing: 3px;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.8);
  font-weight: 700;
}

.hero__description {
  font-family: var(--font-body);
  font-size: var(--font-size-md);
  color: var(--color-azul-electrico);
  text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.7);
  font-weight: 500;
}

/* ===== ENTER BUTTON STYLES ===== */
.enter-section {
  margin-top: 3rem;
  display: flex;
  justify-content: center;
  align-items: center;
}

.enter-button {
  background: linear-gradient(135deg, var(--color-azul-electrico) 0%, var(--color-verde-olivo) 100%);
  border: none;
  padding: 1rem 2.5rem;
  border-radius: 50px;
  color: var(--color-gris-oscuro);
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-fast);
  box-shadow: 0 10px 30px rgba(0, 255, 255, 0.3);
  display: flex;
  align-items: center;
  gap: 0.8rem;
  min-width: 180px;
  justify-content: center;
}

.enter-button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left var(--transition-medium);
}

.enter-button:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 40px rgba(0, 255, 255, 0.4);
}

.enter-button:hover::before {
  left: 100%;
}

.enter-button:active {
  transform: translateY(-1px);
  box-shadow: 0 8px 25px rgba(0, 255, 255, 0.3);
}

.enter-text {
  position: relative;
  z-index: 2;
}

.enter-arrow {
  font-size: 1.2rem;
  transition: transform var(--transition-fast);
  position: relative;
  z-index: 2;
}

.enter-button:hover .enter-arrow {
  transform: translateX(5px);
}

/* ===== RESPONSIVE DESIGN ===== */
@media screen and (max-width: 768px) {
  .nav__container {
    padding: 0 var(--spacing-sm);
  }
  
  .nav__logo-text {
    font-size: var(--font-size-sm);
  }
  
  .nav__link {
    font-size: var(--font-size-md);
  }
  
  .hero__title {
    font-size: var(--font-size-lg);
  }
  
  .hero__description {
    font-size: var(--font-size-sm);
  }
  
  .hero__video {
    min-width: 120%;
    min-height: 120%;
  }
  
  .nav__close {
    top: var(--spacing-sm);
    right: var(--spacing-sm);
  }
  
  .enter-button {
    padding: 0.9rem 2rem;
    font-size: 1rem;
    min-width: 160px;
  }
}

@media screen and (max-width: 480px) {
  .nav__menu-container {
    padding: var(--spacing-sm);
  }
  
  .nav__link {
    font-size: var(--font-size-sm);
    letter-spacing: 2px;
  }
  
  .hero__title {
    font-size: var(--font-size-md);
  }
  
  .hero__video {
    min-width: 150%;
    min-height: 150%;
  }
  
  .hero__container {
    padding: 0 var(--spacing-sm);
  }
  
  .enter-button {
    padding: 0.8rem 1.5rem;
    font-size: 0.9rem;
    min-width: 140px;
  }
}

/* ===== MICROINTERACCIONES ===== */
@media (prefers-reduced-motion: no-preference) {
  .nav__toggle-line,
  .nav__link,
  .nav__contact-btn {
    transition: all var(--transition-fast);
  }
  
  .nav__menu {
    transition: all var(--transition-medium);
  }
}

/* ===== ACCESIBILIDAD ===== */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Focus states para accesibilidad */
.nav__toggle:focus,
.nav__close:focus,
.nav__link:focus,
.nav__contact-btn:focus {
  outline: 2px solid var(--color-azul-electrico);
  outline-offset: 2px;
}