:root {
    /* Ahora el marrón original (#a47551) se usará como verde oscuro,
       y el verde oscuro original (#2e4a1f) se usará como marrón. */
    --verde-oscuro:  #2e4a1f;   /* antes era el marrón-tierra */
    --verde-claro1: #2E7D32;
    --verde-claro:   #7fa97a;   /* se mantiene verde claro */
    --marrón-tierra: #a47551;   /* antes era el verde-oscuro */
    --beige-suave:   #f5f0e1;
    --gris-claro:    #f0eee8;
    --gris-texto:    #333333;
    --sombra-oscura: rgba(0, 0, 0, 0.15);
  }

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

  body {
    font-family: 'Segoe UI', Arial, sans-serif;
    background-color: var(--beige-suave);
    color: var(--gris-texto);
    line-height: 1.6;
  }

  a {
    color: black;
    text-decoration: none;
    transition: color 0.2s ease;
  }
  a:hover {
    color: var(--verde-claro);
  }

    /* ------------ BANNER PRINCIPAL ------------ */
    .banner {
      width: 100%;
      height: 220px;
      background: linear-gradient(135deg, var(--verde-oscuro), var(--verde-claro1));
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      text-align: center;
      color: white;
      position: relative;
    }
    .banner h1 {
      font-size: 2.8rem;
      text-shadow: 1px 1px 3px var(--sombra-oscura);
      margin-bottom: 0.4rem;
    }
    .banner p {
      font-size: 1.1rem;
      max-width: 600px;
      text-shadow: 1px 1px 2px var(--sombra-oscura);
    }

  /* ------------ HEADER ------------ */
  header {
    background-color: var(--verde-oscuro);
    color: white;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 4px var(--sombra-oscura);
  }
  .header-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
          font-size: 1.25rem;            /* Tamaño del texto (16px por defecto) */

    flex-wrap: wrap;
  }
  .logo-container {
    display: flex;
    align-items: center;
  }
  .logo {
    height: 45px;
    margin-right: 0.6rem;
  }
  .logo-container h2 {
    font-size: 1.8rem;
  }
  nav ul {
    list-style: none;
    display: flex;
    gap: 1rem;
    margin: 0;
  }
  nav ul li a {
    display: block;
    padding: 0.5rem 0.8rem;
    border-radius: 4px;
    font-weight: 600;
    transition: background 0.2s ease;
    color: white;
  }
  nav ul li a:hover,
  nav ul li a:focus {
          background-color: var(--verde-oscuro);
  }
  .user-info {
    display: none;
    align-items: center;
    font-weight: 600;
  }
  #usernameDisplay {
    margin-left: 0.5rem;
  }

  /* ------------ MODALES (LOGIN/REGISTRO) ------------ */
  .modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
    z-index: 200;
    align-items: center;
    justify-content: center;
  }
  .modal-content {
    background-color: #fff;
    border-radius: 8px;
    max-width: 400px;
    width: 90%;
    padding: 2rem 1.5rem;
    position: relative;
    box-shadow: 0 4px 12px var(--sombra-oscura);
  }
  .modal-content h3 {
    margin-bottom: 1rem;
    color: var(--verde-oscuro);
    text-align: center;
  }
  .modal-content .close {
    position: absolute;
    top: 0.6rem;
    right: 1rem;
    font-size: 1.4rem;
    font-weight: bold;
    color: var(--gris-texto);
    cursor: pointer;
  }
  .form-group {
    margin-bottom: 1rem;
  }
  .form-group label {
    display: block;
    margin-bottom: 0.3rem;
    font-weight: 600;
    color: var(--gris-texto);
  }
  .form-group input {
    width: 100%;
    padding: 0.6rem;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 0.95rem;
    color: var(--gris-texto);
  }
  .form-group button {
    width: 100%;
    padding: 0.65rem;
    background-color: var(--marrón-tierra);
    border: none;
    border-radius: 4px;
    color: white;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s ease;
  }
  .form-group button:hover {
    background-color: var(--verde-claro);
  }
  .switch-form {
    margin-top: 0.75rem;
    text-align: center;
    font-size: 0.9rem;
  }
  .switch-form a {
    color: var(--marrón-tierra);
    font-weight: 600;
  }
  .switch-form a:hover {
    text-decoration: underline;
  }

  /* ------------ CONTENIDO PRINCIPAL ------------ */
  main {
    max-width: 1000px;
    margin: 2rem auto;
    padding: 0 1rem;
  }
  .seccion-presentacion {
    background-color: var(--gris-claro);
    border-radius: 8px;
    padding: 2rem;
    box-shadow: 0 2px 6px var(--sombra-oscura);
  }
  .seccion-presentacion h2 {
    color: var(--verde-oscuro);
    font-size: 2rem;
    margin-bottom: 1rem;
    text-align: center;
  }
  .seccion-presentacion p {
    margin-bottom: 1rem;
    text-align: justify;
    color: var(--texto-principal);
  }

  /* ------------ TARJETAS PUEBLOS MÁGICOS ------------ */
  .states-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-top: 1rem;
  }
  .state-card {
    background-color: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 6px var(--sombra-oscura);
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
  }
  .state-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 4px 12px var(--sombra-oscura);
  }
  .state-card img {
    width: 100%;
    height: 140px;
    object-fit: cover;
  }
  .state-card-content {
    padding: 1rem;
  }
  .state-card-content h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--marrón-tierra);
  }
  .state-card-content p {
    font-size: 0.95rem;
    line-height: 1.4;
    color: var(--texto-principal);
  }

  /* ------------ BOTÓN “REGRESAR” ------------ */
  .back-link {
    display: inline-block;
    margin-top: 2rem;
    color: var(--marrón-tierra);
    font-weight: 600;
    transition: color 0.2s ease;
  }
  .back-link:hover {
    color: var(--verde-claro);
  }

  /* ------------ FOOTER (OPCIONAL) ------------ */
  footer {
    background-color: var(--verde-oscuro);
    color: white;
    text-align: center;
    padding: 1rem 0;
    margin-top: 2rem;
    box-shadow: 0 -2px 4px var(--sombra-oscura);
    font-size: 0.9rem;
  }
  footer nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 0.5rem;
    padding: 0;
  }
  footer nav ul li a {
    color: white;
    font-size: 0.9rem;
    transition: text-decoration 0.2s ease;
  }
  footer nav ul li a:hover {
    text-decoration: underline;
  }

  /* ------------ ACCESIBILIDAD: FOCO VISIBLE ------------ */
  a:focus,
  button:focus {
    outline: 2px solid #1B5E20;
    outline-offset: 2px;
  }

  /* Pantallas pequeñas: móviles */
  @media (max-width: 600px) {
    header {
      flex-direction: column;
      align-items: flex-start;
      gap: 10px;
    }

    nav ul {
      flex-direction: column;
      gap: 10px;
    }

    .states-grid {
      display: flex;
      flex-direction: column;
      align-items: center;
    }

    .state-card {
      width: 90%;
      max-width: 320px;
    }
  }

  /* ------------ ACCESIBILIDAD: FOCO VISIBLE ------------ */
  a:focus,
  button:focus {
    outline: 2px solid #1B5E20;
    outline-offset: 2px;
  }

  /* Pantallas pequeñas: móviles */
  @media (max-width: 600px) {
    header {
      flex-direction: column;
      align-items: flex-start;
      gap: 10px;
    }

    nav ul {
      flex-direction: column;
      gap: 10px;
    }

    .search-bar input {
      width: 90%;
      max-width: 300px;
    }

    .featured-towns,
    .states-grid {
      display: flex;
      flex-direction: column;
      align-items: center;
    }

    .state-card {
      width: 90%;
      max-width: 320px;
    }
  }
   .back-link-button {
    background-color: var(--verde-claro1);
    color: #ffffff;
    padding: 0.6rem 1.2rem;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 2px 6px var(--sombra-oscura);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: background-color 0.2s ease, transform 0.2s ease;
  }
  .back-link-button:hover {
    background-color: var(--verde-claro1);
    transform: translateY(-2px);
  }
  .back-link-button:focus {
    outline: 2px solid var(--verde-claro);
    outline-offset: 2px;
  }

/* Contenedor general para secciones */
.seccion-presentacion,
.section-content {
  margin-top: var(--margen-seccion);
  padding: 1rem 0;
}

/* Títulos h2 centrados con margen inferior */
.seccion-presentacion h2,
.section-content h2 {
  text-align: center;
  margin-bottom: 1rem;
  font-weight: 700;
  color: var(--verde-oscuro);
}

/* Contenedor flexible columna con espacios entre párrafos o elementos */
.flex-column-gap {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* Para imágenes centradas con estilo */
.img-centered {
  text-align: center;
  margin-top: 1rem;
}

.img-centered img {
  width: 100%;
  max-width: 800px;
  border-radius: var(--radio-bordes);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}

/* Grid responsivo para tarjetas */
.states-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

/* Tarjetas estilo estado/pueblo */
.state-card {
  background: var(--gris-claro);
  border-radius: var(--radio-bordes);
  box-shadow: 0 2px 6px var(--sombra-oscura);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.state-card:hover,
.state-card:focus {
  transform: translateY(-4px);
  box-shadow: 0 8px 16px var(--sombra-oscura);
  outline: none;
}

.state-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.state-card-content {
  padding: 1rem;
}

.state-card-content h3 {
  margin: 0 0 0.5rem 0;
  color: var(--verde-oscuro);
}

.state-card-content p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.3;
  color: #333;
}

/* Tarjetas para atractivos y datos curiosos */
.card-info {
  background: var(--gris-claro);
  border-radius: var(--radio-bordes);
  padding: 1rem;
  box-shadow: 0 2px 6px var(--sombra-oscura);
}

.card-info h3 {
  color: var(--verde-oscuro);
  margin-bottom: 0.5rem;
}

/* Contenedor para datos curiosos */
.curiosidades-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 0 1rem;
}