/* ===== VARIABLES ===== */
:root {
    /* Colores principales */
    --color-primary: #e19530;       /* Amarillo/naranja para elementos principales */
    --color-secondary: #b84830;     /* Rojo/marrón para acentos */
    --color-tertiary: #7a2d1d;      /* Marrón oscuro para textos y fondos */
    
    /* Colores neutros */
    --color-dark: #333333;          /* Casi negro para textos */
    --color-light: #ffffff;         /* Blanco para fondos y textos en fondos oscuros */
    --color-gray-light: #f9f9f9;    /* Gris claro para fondos alternativos */
    --color-gray-medium: #e5e5e5;   /* Gris medio para bordes y separadores */
  
    /* Fuentes */
    --font-heading: 'Bebas Neue', sans-serif;
    --font-body: 'Montserrat', sans-serif;
    
    /* Tamaños de fuente */
    --font-size-xs: 0.75rem;        /* 12px */
    --font-size-sm: 0.875rem;       /* 14px */
    --font-size-base: 1rem;         /* 16px */
    --font-size-md: 1.125rem;       /* 18px */
    --font-size-lg: 1.25rem;        /* 20px */
    --font-size-xl: 1.5rem;         /* 24px */
    --font-size-2xl: 2rem;          /* 32px */
    --font-size-3xl: 2.5rem;        /* 40px */
    --font-size-4xl: 3rem;          /* 48px */
    --font-size-5xl: 4rem;          /* 64px */
    
    /* Espaciados */
    --spacing-xs: 0.25rem;          /* 4px */
    --spacing-sm: 0.5rem;           /* 8px */
    --spacing-md: 1rem;             /* 16px */
    --spacing-lg: 1.5rem;           /* 24px */
    --spacing-xl: 2rem;             /* 32px */
    --spacing-2xl: 3rem;            /* 48px */
    --spacing-3xl: 4rem;            /* 64px */
    
    /* Bordes y sombras */
    --border-radius-sm: 0.25rem;    /* 4px */
    --border-radius-md: 0.5rem;     /* 8px */
    --border-radius-lg: 1rem;       /* 16px */
    --border-radius-xl: 2rem;       /* 32px */
    --border-radius-full: 9999px;   /* Bordes totalmente redondeados */
    
    --box-shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --box-shadow-md: 0 4px 8px rgba(0, 0, 0, 0.12);
    --box-shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.15);
    
    /* Transiciones */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Contenedor */
    --container-max-width: 1200px;
    --container-padding: 5%;
  }
  
  /* ===== RESET ===== */
  *, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  html {
    font-size: 16px;
    scroll-behavior: smooth;
    scroll-padding-top: 80px; /* Para compensar la altura del navbar fijo */
  }
  
  body {
    font-family: var(--font-body);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-dark);
    background-color: var(--color-light);
    overflow-x: hidden;
  }
  
  h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
  }
  
  h1 {
    font-size: var(--font-size-4xl);
  }
  
  h2 {
    font-size: var(--font-size-3xl);
  }
  
  h3 {
    font-size: var(--font-size-xl);
  }
  
  h4 {
    font-size: var(--font-size-lg);
  }
  
  p {
    margin-bottom: var(--spacing-md);
  }
  
  a {
    text-decoration: none;
    color: var(--color-primary);
    transition: color var(--transition-normal);
  }
  
  a:hover {
    color: var(--color-secondary);
  }
  
  img {
    max-width: 100%;
    height: auto;
    display: block;
  }
  
  button {
    cursor: pointer;
    font-family: var(--font-body);
    border: none;
    background: none;
  }
  
  ul, ol {
    list-style-position: inside;
    margin-bottom: var(--spacing-md);
  }
  
  /* ===== UTILITY CLASSES ===== */
  .container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    width: 100%;
  }
  
  .section {
    padding: var(--spacing-3xl) 0;
    position: relative;
  }
  
  .section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
  }
  
  .section-title {
    color: var(--color-tertiary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-sm);
  }
  
  .section-divider {
    width: 80px;
    height: 3px;
    background-color: var(--color-primary);
    margin: 0 auto var(--spacing-md);
  }
  
  .section-subtitle {
    font-size: var(--font-size-md);
    color: var(--color-tertiary);
    font-style: italic;
    max-width: 600px;
    margin: 0 auto;
  }
  
  /* Fondos alternos para secciones */
  .section:nth-child(even) {
    background-color: var(--color-gray-light);
  }
  
  /* Botones */
  .btn-primary {
    display: inline-block;
    background-color: var(--color-primary);
    color: var(--color-light);
    font-weight: 600;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--border-radius-full);
    text-transform: uppercase;
    letter-spacing: 1px;
    text-align: center;
    transition: background-color var(--transition-normal), transform var(--transition-normal);
    box-shadow: var(--box-shadow-sm);
  }
  
  .btn-primary:hover {
    background-color: var(--color-secondary);
    color: var(--color-light);
    transform: translateY(-3px);
    box-shadow: var(--box-shadow-md);
  }
  
  .btn-secondary {
    display: inline-block;
    background-color: transparent;
    color: var(--color-tertiary);
    font-weight: 600;
    padding: var(--spacing-md) var(--spacing-xl);
    border: 2px solid var(--color-tertiary);
    border-radius: var(--border-radius-full);
    text-transform: uppercase;
    letter-spacing: 1px;
    text-align: center;
    transition: all var(--transition-normal);
  }
  
  .btn-secondary:hover {
    background-color: var(--color-tertiary);
    color: var(--color-light);
  }
  
  .btn-inverted {
    display: inline-block;
    background-color: var(--color-light);
    color: var(--color-secondary);
    font-weight: 600;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--border-radius-full);
    text-transform: uppercase;
    letter-spacing: 1px;
    text-align: center;
    transition: all var(--transition-normal);
  }
  
  .btn-inverted:hover {
    background-color: rgba(255, 255, 255, 0.9);
    transform: translateY(-3px);
  }
  
  .btn-block {
    display: block;
    width: 100%;
  }
  
  /* Preloader */
  .preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-light);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity var(--transition-normal), visibility var(--transition-normal);
  }
  
  .preloader.fade-out {
    opacity: 0;
    visibility: hidden;
  }
  
  .loader {
    width: 100px;
    height: 100px;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
  }
  
  .loader img {
    width: 80px;
    height: auto;
    animation: pulse 1.5s infinite ease-in-out;
  }
  
  @keyframes pulse {
    0% {
      transform: scale(0.9);
      opacity: 0.8;
    }
    50% {
      transform: scale(1);
      opacity: 1;
    }
    100% {
      transform: scale(0.9);
      opacity: 0.8;
    }
  }
  
  /* Back to top button */
  .back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 40px;
    height: 40px;
    background-color: var(--color-secondary);
    color: var(--color-light);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: 99;
    box-shadow: var(--box-shadow-md);
  }
  
  .back-to-top.visible {
    opacity: 1;
    visibility: visible;
  }
  
  .back-to-top:hover {
    background-color: var(--color-tertiary);
    transform: translateY(-5px);
  }
  
  /* ===== RESPONSIVE ===== */
  @media (max-width: 1199px) {
    :root {
      --container-max-width: 960px;
    }
  }
  
  @media (max-width: 991px) {
    :root {
      --container-max-width: 720px;
    }
    
    html {
      font-size: 15px;
    }
  }
  
  @media (max-width: 767px) {
    :root {
      --container-max-width: 540px;
      --container-padding: 15px;
    }
    
    html {
      font-size: 14px;
    }
    
    .section {
      padding: var(--spacing-2xl) 0;
    }
  }
  
  @media (max-width: 575px) {
    html {
      font-size: 13px;
    }
    
    h1 {
      font-size: var(--font-size-3xl);
    }
    
    h2 {
      font-size: var(--font-size-2xl);
    }
    
    .section-header {
      margin-bottom: var(--spacing-xl);
    }
  }