/* Camino Natural — estilo básico tipo craigslist.
   Fondo blanco, letra común, enlaces azules subrayados, listas de links.
   Casi sin decoración a propósito. */

body {
  margin: 0;
  padding: 0 12px 30px;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 14px;
  line-height: 1.45;
  color: #222;
  background: #fff;
}
a { color: #00c; text-decoration: underline; }
a:visited { color: #551a8b; }
a:hover { color: #00c; background: #eef; }
h1, h2, h3 { font-weight: bold; color: #333; margin: 1em 0 .4em; line-height: 1.2; }
h1 { font-size: 22px; }
h2 { font-size: 17px; }
h3 { font-size: 14px; }
p { margin: 0 0 .9em; }
img { max-width: 100%; height: auto; border: 1px solid #ccc; }
hr { border: 0; border-top: 1px solid #ccc; margin: 14px 0; }
ul { margin: 0 0 1em; padding-left: 20px; }
li { margin-bottom: 3px; }
table { border-collapse: collapse; margin: .5em 0 1em; }
th, td { border: 1px solid #ccc; padding: 4px 8px; text-align: left; vertical-align: top; }
th { background: #eee; }
blockquote { margin: .8em 0 .8em 1.5em; padding-left: 10px; border-left: 3px solid #ccc; color: #444; font-style: italic; }
.tabla-scroll { overflow-x: auto; }

/* Cabecera: barra oscura con pestañas (la única parte "diseñada" del sitio) */
.cabecera { background: #2b2b2b; border-bottom: 1px solid #1a1a1a; margin: 0 -12px 16px; padding: 0 12px; position: sticky; top: 0; z-index: 20; }
.cabecera-inner { display: flex; align-items: stretch; justify-content: space-between; min-height: 62px; }
.marca { display: flex; align-items: center; gap: 12px; color: #fff; text-decoration: none; padding: 6px 0; }
.marca:visited { color: #fff; }
.marca:hover { background: none; color: #fff; }
.logo { width: 50px; height: 50px; border: 0; border-radius: 50%; }
.marca span:last-child { font-size: 17px; font-weight: normal; }
.menu { display: flex; align-items: stretch; margin: 0; padding: 0; list-style: none; }
.menu li { display: flex; margin: 0; }
.menu a {
  display: flex; align-items: center; padding: 0 16px; color: #d9d9d9; text-decoration: none;
  font-size: 12px; font-weight: bold; text-transform: uppercase; letter-spacing: .6px;
}
.menu a:visited { color: #d9d9d9; }
.menu a:hover { color: #fff; background: rgba(255,255,255,.08); }
.menu a.activo { color: #222; background: #fff; }
.menu-toggle { display: none; }
.menu-boton { display: none; cursor: pointer; flex-direction: column; justify-content: center; gap: 5px; padding: 8px; }
.menu-boton span { width: 24px; height: 3px; background: #fff; }
@media (max-width: 800px) {
  .menu-boton { display: flex; }
  .cabecera-inner { flex-wrap: wrap; }
  .menu { display: none; width: 100%; flex-direction: column; border-top: 1px solid #444; }
  .menu a { padding: 10px 6px; border-bottom: 1px solid #3a3a3a; }
  .menu-toggle:checked ~ .menu { display: flex; }
}

/* Estructura */
.contenido { max-width: 1500px; }
.columnas { display: flex; flex-wrap: wrap; gap: 20px 30px; }
.columna { flex: 1 1 180px; min-width: 170px; }
.columna h3 { margin: .2em 0 .3em; padding-bottom: 2px; border-bottom: 1px solid #ccc; }
.columna ul { list-style: none; padding: 0; margin: 0 0 .8em; }
.columna li { margin: 0; line-height: 1.6; }
.subgrupo { margin: 6px 0 2px; font-weight: bold; font-size: 13px; }
.dos-col { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 20px 40px; align-items: flex-start; }
.principal-col { flex: 1 1 520px; max-width: 980px; }
.lateral { flex: 0 0 230px; min-width: 200px; margin-left: auto; font-size: 13px; }
.lateral h3 { margin-top: .2em; border-bottom: 1px solid #ccc; padding-bottom: 2px; }
.lateral ul { list-style: none; padding: 0; margin: 0 0 .8em; }
.lateral li { margin: 0; line-height: 1.6; }
.caja { border: 1px solid #ccc; background: #f7f7f7; padding: 8px 10px; margin: 0 0 12px; }
.suave { color: #666; font-size: 12px; }
.migas { font-size: 12px; color: #666; margin-bottom: 8px; }
.aviso { border: 1px solid; padding: 6px 10px; margin-bottom: 12px; }
.aviso-error { background: #fee; color: #900; border-color: #c99; }

/* Portada */
.portada-intro {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(240px, 2fr);
  gap: 30px;
  align-items: start;
  width: 100%;
  box-sizing: border-box;
}
.portada-texto, .portada-imagen { min-width: 0; }
.foto-portada {
  display: block;
  width: 100%;
  max-width: 420px;
  height: auto;
  margin-left: auto;
  box-sizing: border-box;
}
.destacado { border: 1px solid #ccc; background: #f7f7f7; padding: 8px 12px; margin: 10px 0 16px; max-width: 700px; }

@media (max-width: 800px) {
  body { font-size:17px; }
  .portada-intro { grid-template-columns: 1fr; gap: 10px; }
  .foto-portada { max-width: 100%; margin: 0; }
  .menu a,
  .suave,
  .migas,
  .pie { font-size:14px; }
}

/* Listas de artículos (granjas, técnicas, plantas) */
.lista-articulos { list-style: none; padding: 0; margin: 0; }
.lista-articulos li { padding: 6px 0; border-bottom: 1px dotted #ccc; }
.lista-articulos li a { font-size: 15px; }
.lista-articulos li span { display: block; color: #555; font-size: 13px; }

/* Botones y formularios */
.boton { display: inline-block; font: inherit; font-size: 13px; padding: 3px 10px; border: 1px solid #888; background: #eee; color: #222; cursor: pointer; text-decoration: none; }
.boton:hover { background: #ddd; color: #222; }
.boton:visited { color: #222; }
.formulario label { display: block; font-size: 12px; color: #444; margin: 8px 0 2px; }
.formulario input, .formulario textarea { font: inherit; font-size: 13px; padding: 3px 5px; border: 1px solid #888; width: 100%; max-width: 420px; box-sizing: border-box; }
.formulario button { margin-top: 8px; }

/* Chat */
.temas { list-style: none; padding: 0; margin: 0; }
.temas li { padding: 6px 0; border-bottom: 1px dotted #ccc; }
.temas li a { font-size: 15px; }
.temas .suave { display: block; }
.mensaje { padding: 8px 0; border-bottom: 1px dotted #ccc; }
.mensaje header { font-size: 12px; color: #666; margin-bottom: 2px; }
.mensaje header strong { color: #222; }
.mensaje p { margin: 0; white-space: pre-wrap; }
.vacio { color: #666; font-style: italic; }

/* Pie */
.pie { border-top: 1px solid #ccc; margin-top: 30px; padding-top: 8px; font-size: 12px; color: #666; }
.pie a { margin-right: 10px; }