/* ============================================
   CARBONITTE MÉXICO - Ultra-Minimal Design System
   ============================================ */

/* CSS Variables - Design Tokens */
:root {
  /* Colors */
  --color-black: #000000;
  --color-white: #ffffff;
  --color-gray-100: #f5f5f5;
  --color-gray-200: #e5e5e5;
  --color-gray-300: #d4d4d4;
  --color-gray-400: #a3a3a3;
  --color-gray-600: #525252;
  --color-gray-800: #262626;
  --color-accent: #1a1a1a;

  /* Olive green from user */
  --color-olive: #A1B668;
  --color-olive-dark: #8a9e56;
  --color-olive-light: rgba(161, 182, 104, 0.1);

  /* Typography */
  --font-sans: "Adobe Caslon Pro", "Caslon", "Libre Baskerville", Georgia, serif;
  --font-size-xs: 0.75rem;      /* 12px */
  --font-size-sm: 0.875rem;     /* 14px */
  --font-size-base: 1rem;       /* 16px */
  --font-size-lg: 1.125rem;     /* 18px */
  --font-size-xl: 1.25rem;      /* 20px */
  --font-size-2xl: 1.5rem;      /* 24px */
  --font-size-3xl: 1.875rem;    /* 30px */
  --font-size-4xl: 2.25rem;     /* 36px */
  --font-size-5xl: 3rem;        /* 48px */
  --font-size-6xl: 3.75rem;     /* 60px */

  /* Spacing */
  --space-1: 0.5rem;    /* 8px */
  --space-2: 1rem;      /* 16px */
  --space-3: 1.5rem;    /* 24px */
  --space-4: 2rem;      /* 32px */
  --space-6: 3rem;      /* 48px */
  --space-8: 4rem;      /* 64px */
  --space-12: 6rem;     /* 96px */
  --space-16: 8rem;     /* 128px */

  /* Layout */
  --max-width: 1200px;
  --max-width-narrow: 1000px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

/* ============================================
   Reset & Base Styles
   ============================================ */

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--color-gray-800);
  background: var(--color-white);
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: opacity var(--transition-fast);
}

a:hover {
  opacity: 0.7;
}

button {
  font-family: inherit;
  cursor: pointer;
}

/* ============================================
   Typography
   ============================================ */

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  color: var(--color-black);
  margin-bottom: var(--space-3);
}

h1 {
  font-size: var(--font-size-5xl);
  font-weight: 700;
  letter-spacing: -0.02em;
}

h2 {
  font-size: var(--font-size-4xl);
  font-weight: 600;
}

h3 {
  font-size: var(--font-size-3xl);
}

h4 {
  font-size: var(--font-size-2xl);
}

p {
  margin-bottom: var(--space-3);
  text-align: justify;
}

/* ============================================
   Layout Components
   ============================================ */

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-3);
}

.container-narrow {
  max-width: var(--max-width-narrow);
  margin: 0 auto;
  padding: 0 var(--space-3);
}

.section {
  padding: var(--space-12) 0;
}

.section-lg {
  padding: var(--space-16) 0;
}

/* ============================================
   Navigation
   ============================================ */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to bottom, #fafafa, #f5f5f5);
  border-bottom: 4px solid var(--color-olive);
  box-shadow: 0 2px 8px rgba(161, 182, 104, 0.08);
  z-index: 1000;
  transition: transform var(--transition-base);
}

.nav-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-3) var(--space-4);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-black);
  background: var(--color-olive);
  padding: var(--space-1) var(--space-3);
  border-radius: 24px;
  color: var(--color-white);
  transition: all var(--transition-base);
}

.nav-logo:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(161, 182, 104, 0.3);
  opacity: 1;
}

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

.nav-logo-img {
  height: 100px;
  width: auto;
  transition: transform var(--transition-base);
}

.nav-logo-link:hover .nav-logo-img {
  transform: scale(1.05);
  opacity: 1;
}

.nav-menu {
  display: flex;
  gap: var(--space-6);
  list-style: none;
}

.nav-link {
  font-size: var(--font-size-sm);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-olive-dark);
  transition: all var(--transition-fast);
  position: relative;
}

.nav-link:hover {
  color: var(--color-gray-800);
  opacity: 1;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-olive);
  transition: width var(--transition-base);
}

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

.lang-toggle {
  padding: var(--space-1) var(--space-2);
  background: var(--color-olive-light);
  border: 1px solid var(--color-olive);
  border-radius: 20px;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-olive);
  transition: all var(--transition-fast);
}

.lang-toggle:hover {
  background: var(--color-olive);
  color: var(--color-white);
  transform: translateY(-1px);
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  padding: var(--space-1);
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-black);
  margin: 5px 0;
  transition: transform var(--transition-base);
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: flex-start;
  justify-content: flex-end;
  text-align: right;
  position: relative;
  background: var(--color-gray-100);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.4);
  z-index: 1;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  padding: var(--space-4);
  margin-right: var(--space-8);
  margin-top: var(--space-12);
}

.hero-title {
  font-size: var(--font-size-6xl);
  margin-bottom: var(--space-4);
  animation: fadeInUp 0.8s ease;
  color: var(--color-black);
  text-shadow: 0 2px 4px rgba(255, 255, 255, 0.8);
}

.hero-subtitle {
  font-size: var(--font-size-xl);
  color: var(--color-black);
  font-weight: 400;
  animation: fadeInUp 0.8s ease 0.2s backwards;
  text-shadow: 0 1px 2px rgba(255, 255, 255, 0.8);
}

/* Scroll Indicator */
.scroll-indicator {
  position: absolute;
  bottom: var(--space-6);
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  animation: fadeInUp 0.8s ease 0.4s backwards;
  transition: opacity var(--transition-slow);
  cursor: pointer;
}

.scroll-indicator span {
  display: block;
  width: 24px;
  height: 40px;
  border: 2px solid var(--color-white);
  border-radius: 12px;
  position: relative;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.scroll-indicator span::before {
  content: '';
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 8px;
  background: var(--color-white);
  border-radius: 2px;
  animation: scrollDown 2s infinite;
}

@keyframes scrollDown {
  0% {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
  100% {
    opacity: 0;
    transform: translateX(-50%) translateY(16px);
  }
}

/* ============================================
   Grid Layouts
   ============================================ */

.grid {
  display: grid;
  gap: var(--space-6);
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(2, 1fr);
  max-width: 1100px;
  margin: 0 auto;
}

/* ============================================
   Cards
   ============================================ */

.card {
  background: var(--color-white);
  border: 2px solid var(--color-gray-300);
  transition: all var(--transition-base);
  overflow: hidden;
  border-radius: 12px;
  box-shadow:
    8px 8px 0px var(--color-olive),
    0 4px 20px rgba(0, 0, 0, 0.08);
  position: relative;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-olive) 0%, var(--color-olive-dark) 100%);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.card:hover {
  transform: translateY(-8px) translateX(-2px);
  box-shadow:
    12px 12px 0px var(--color-olive-dark),
    0 8px 30px rgba(161, 182, 104, 0.25),
    0 0 0 2px var(--color-olive);
  border-color: var(--color-olive);
}

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

.card-image {
  width: 100%;
  height: 300px;
  object-fit: cover;
}

.card-content {
  padding: var(--space-4);
}

.card-title {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-2);
  background: linear-gradient(135deg, var(--color-black) 0%, var(--color-olive-dark) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.card-description {
  color: var(--color-gray-600);
  margin-bottom: var(--space-3);
}

/* ============================================
   Buttons
   ============================================ */

.btn {
  display: inline-block;
  padding: var(--space-2) var(--space-4);
  font-size: var(--font-size-base);
  font-weight: 500;
  text-align: center;
  border: 2px solid var(--color-black);
  background: transparent;
  color: var(--color-black);
  transition: all var(--transition-base);
  cursor: pointer;
}

.btn:hover {
  background: var(--color-black);
  color: var(--color-white);
  opacity: 1;
}

.btn-primary {
  background: var(--color-black);
  color: var(--color-white);
}

.btn-primary:hover {
  background: var(--color-gray-800);
  border-color: var(--color-gray-800);
}

.btn-sm {
  padding: var(--space-1) var(--space-2);
  font-size: var(--font-size-xs);
  border: 1px solid var(--color-gray-300);
  background: transparent;
  color: var(--color-gray-600);
  font-weight: 400;
}

.btn-sm:hover {
  background: var(--color-gray-100);
  border-color: var(--color-gray-400);
  color: var(--color-gray-800);
}

/* ============================================
   Gallery
   ============================================ */

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: var(--space-3);
  margin-top: var(--space-6);
}

.gallery-item {
  cursor: pointer;
  overflow: hidden;
  aspect-ratio: 4/3;
  border: none;
  border-radius: 4px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  transition: all var(--transition-base);
}

.gallery-item:hover {
  box-shadow: 0 4px 16px rgba(161, 182, 104, 0.3);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.gallery-item:hover img {
  transform: scale(1.05);
}

/* ============================================
   Footer
   ============================================ */

.footer {
  background: var(--color-gray-100);
  padding: var(--space-8) 0 var(--space-4);
  margin-top: var(--space-16);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-6);
  margin-bottom: var(--space-6);
}

.footer-section h4 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-3);
}

.footer-section p {
  color: var(--color-gray-600);
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-2);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-gray-200);
  color: var(--color-gray-600);
  font-size: var(--font-size-sm);
}

/* ============================================
   Lightbox
   ============================================ */

.lightbox {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.95);
  z-index: 9999;
  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;
  background: var(--color-white);
  border: none;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  font-size: var(--font-size-2xl);
  line-height: 1;
  cursor: pointer;
  transition: background var(--transition-fast);
  z-index: 10001;
}

.lightbox-close:hover {
  background: var(--color-gray-200);
}

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.9);
  border: none;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
  transition: all var(--transition-fast);
  z-index: 10001;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox-nav:hover {
  background: var(--color-white);
  transform: translateY(-50%) scale(1.1);
}

.lightbox-prev {
  left: 20px;
}

.lightbox-next {
  right: 20px;
}

@media (max-width: 768px) {
  .lightbox-nav {
    width: 40px;
    height: 40px;
    font-size: 20px;
  }

  .lightbox-prev {
    left: 10px;
  }

  .lightbox-next {
    right: 10px;
  }
}

/* ============================================
   Animations
   ============================================ */

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

.fade-in {
  animation: fadeInUp 0.6s ease;
}

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 768px) {
  :root {
    --font-size-6xl: 2.5rem;
    --font-size-5xl: 2rem;
    --font-size-4xl: 1.75rem;
  }

  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-white);
    flex-direction: column;
    gap: 0;
    padding: var(--space-3);
    border-bottom: 1px solid var(--color-gray-200);
  }

  .nav-menu.active {
    display: flex;
  }

  .menu-toggle {
    display: block;
  }

  .hero {
    min-height: 500px;
  }

  .scroll-indicator {
    display: none;
  }

  .section {
    padding: var(--space-8) 0;
  }

  .section-lg {
    padding: var(--space-12) 0;
  }

  .grid-4 {
    grid-template-columns: 1fr;
    max-width: 100%;
  }

  .grid-3,
  .grid-2 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .container,
  .container-narrow {
    padding: 0 var(--space-3);
  }

  .gallery {
    grid-template-columns: 1fr;
  }
}