/* Turismo Minero - CSS Puro */
:root {
  /* Colores Tierra Mineros */
  --mining-gold: #D4A574;
  --deep-earth: #5C4033;
  --warm-amber: #E8B968;
  --rich-umber: #3E2723;
  --sage-green: #8B9D83;
  
  /* Colores UI */
  --background: #FDFBF7;
  --text-primary: #2C2418;
  --text-secondary: #6B5D4F;
  --text-tertiary: #8B7D6B;
  --border-color: #E8DCC8;
  --card-bg: #FFFFFF;
  
  /* Tipografía */
  --font-heading: 'Montserrat', sans-serif;
  --font-body: 'Open Sans', sans-serif;
  --font-quote: 'Playfair Display', serif;
  
  /* Espaciado */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
  
  /* Breakpoints */
  --mobile: 768px;
  --tablet: 1024px;
  --desktop: 1280px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--background);
  overflow-x: hidden;
}

/* Tipografía */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: 1.25rem; }

p {
  margin-bottom: var(--spacing-sm);
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Container */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* Botones */
.btn {
  display: inline-block;
  padding: 1rem 2rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  border: 2px solid transparent;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: all 0.3s ease;
  text-align: center;
}

.btn-primary {
  background-color: var(--mining-gold);
  color: var(--rich-umber);
  border-color: var(--mining-gold);
}

.btn-primary:hover {
  background-color: var(--warm-amber);
  border-color: var(--warm-amber);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(212, 165, 116, 0.3);
}

.btn-outline {
  background-color: transparent;
  color: white;
  border-color: white;
  backdrop-filter: blur(10px);
  background: rgba(255, 255, 255, 0.1);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* Header / Navigation */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: rgba(61, 47, 35, 0.95);
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
}

.header.scrolled {
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem var(--spacing-md);
  max-width: 1280px;
  margin: 0 auto;
}

.logo {
  height: 50px;
  transition: transform 0.3s ease;
}

.logo:hover {
  transform: scale(1.05);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 2rem;
  align-items: center;
}

.nav-link {
  color: white;
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.3s ease;
  position: relative;
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--mining-gold);
  transition: width 0.3s ease;
}

.nav-link:hover::after {
  width: 100%;
}

/* Language Selector */
.lang-selector {
  display: flex;
  gap: 0.5rem;
  margin-left: 1rem;
}

.lang-btn {
  padding: 0.4rem 0.8rem;
  background: transparent;
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 0.25rem;
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 600;
  transition: all 0.3s ease;
}

.lang-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.5);
}

.lang-btn.active {
  background: var(--mining-gold);
  color: var(--rich-umber);
  border-color: var(--mining-gold);
}

/* Mobile Menu Button */
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: white;
  font-size: 1.5rem;
  cursor: pointer;
}

/* Hero Section */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-video {
  position: absolute;
  top: 0;
  left: 0;
  min-width: 100%;
  min-height: 100%;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
  transform-origin: center center;
}

.hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
  color: white;
  max-width: 900px;
  padding: var(--spacing-md);
  animation: fadeInUp 1s ease;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 5rem);
  margin-bottom: var(--spacing-md);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.8), 0 4px 12px rgba(0, 0, 0, 0.6), 0 8px 24px rgba(0, 0, 0, 0.4);
  font-weight: 700;
}

.hero-subtitle {
  font-size: clamp(1.2rem, 2vw, 1.5rem);
  margin-bottom: var(--spacing-lg);
  font-weight: 400;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.8), 0 4px 12px rgba(0, 0, 0, 0.6);
}

.hero-cta {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* Section Styles */
.section {
  padding: var(--spacing-xl) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.section-title {
  color: var(--deep-earth);
  margin-bottom: var(--spacing-sm);
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1.125rem;
  max-width: 700px;
  margin: 0 auto;
}

/* Experience Cards */
.experience-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.experience-card {
  background: var(--card-bg);
  border-radius: 1rem;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.experience-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.experience-image {
  width: 100%;
  height: 250px;
  object-fit: cover;
}

.experience-content {
  padding: var(--spacing-md);
}

.experience-title {
  color: var(--deep-earth);
  margin-bottom: var(--spacing-sm);
}

.experience-description {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
}

.experience-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: var(--spacing-md);
  padding-top: var(--spacing-sm);
  border-top: 1px solid var(--border-color);
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.meta-icon {
  color: var(--mining-gold);
}

/* Gallery */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1rem;
}

.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: 0.5rem;
  cursor: pointer;
  aspect-ratio: 1;
}

.gallery-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.gallery-item:hover .gallery-image {
  transform: scale(1.1);
}

/* Lightbox */
.lightbox {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.95);
  z-index: 2000;
  align-items: center;
  justify-content: center;
}

.lightbox.active {
  display: flex;
}

.lightbox-content {
  max-width: 90%;
  max-height: 90%;
  position: relative;
}

.lightbox-image {
  max-width: 100%;
  max-height: 90vh;
  object-fit: contain;
}

.lightbox-close {
  position: absolute;
  top: 20px;
  right: 20px;
  color: white;
  font-size: 2rem;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 2001;
}

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.1);
  color: white;
  border: none;
  font-size: 2rem;
  padding: 1rem;
  cursor: pointer;
  backdrop-filter: blur(10px);
  border-radius: 0.5rem;
}

.lightbox-prev { left: 20px; }
.lightbox-next { right: 20px; }

/* FAQ */
.faq-container {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--card-bg);
  border-radius: 0.5rem;
  margin-bottom: 1rem;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.faq-question {
  width: 100%;
  padding: 1.5rem;
  background: none;
  border: none;
  text-align: left;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--deep-earth);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background 0.3s ease;
}

.faq-question:hover {
  background: rgba(212, 165, 116, 0.05);
}

.faq-icon {
  transition: transform 0.3s ease;
  font-size: 1.5rem;
  color: var(--mining-gold);
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  padding: 0 1.5rem;
  color: var(--text-secondary);
}

.faq-item.active .faq-answer {
  max-height: 500px;
  padding: 0 1.5rem 1.5rem;
}

/* Contact Form */
.contact-form {
  max-width: 600px;
  margin: 0 auto;
  background: var(--card-bg);
  padding: var(--spacing-lg);
  border-radius: 1rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--deep-earth);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 0.875rem;
  border: 2px solid var(--border-color);
  border-radius: 0.5rem;
  font-family: var(--font-body);
  font-size: 1rem;
  transition: border-color 0.3s ease;
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--mining-gold);
}

.form-textarea {
  resize: vertical;
  min-height: 150px;
}

/* Footer */
.footer {
  background-color: var(--rich-umber);
  color: rgba(255, 255, 255, 0.8);
  padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.footer-section h3 {
  color: white;
  margin-bottom: var(--spacing-md);
}

.footer-links {
  list-style: none;
}

.footer-link {
  display: block;
  padding: 0.5rem 0;
  transition: color 0.3s ease;
}

.footer-link:hover {
  color: var(--mining-gold);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.6);
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Responsive */
@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 70px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 70px);
    background-color: rgba(61, 47, 35, 0.98);
    flex-direction: column;
    padding: 2rem;
    transition: left 0.3s ease;
    align-items: flex-start;
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  .mobile-menu-btn {
    display: block;
  }
  
  .hero-cta {
    flex-direction: column;
    align-items: center;
  }
  
  .btn {
    width: 100%;
    max-width: 300px;
  }
}