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

body {
  font-family: Arial, Helvetica, sans-serif;
  padding: 0px;
  margin: 0px;
  background-color: #fafafa;
}

b {
  color: #424242;
}

header {
  background-color: #000821;
  color: white;
}

#temas-hoy {
  display: none;
  padding-block: 15px;
  padding-inline: 2%;
  font-size: 0.85rem;
  background-color: #f5f5f5;
  color: black;
  align-items: center;
  gap: 1rem;
}

#temas-titulo {
  color: black;
  flex-shrink: 0;
}

#temas-hoy ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

#temas-hoy li {
  white-space: nowrap;
}

#cabecera {
  padding-inline: 10px;
  padding-block: 10px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

#cabecera-izquierda {
  display: flex;
  align-items: center;
  gap: 1rem;
}

#cabecera-derecha {
  display: flex;
  align-items: center;
  gap: 1rem;
}

#btn-secciones {
  background-color: transparent;
  border: none;
  color: white;
  font-size: 1.1rem;
  display: inline-block;
}

#logo-tn {
  text-decoration: none;
  font-weight: 800;
  font-size: 2.1rem;
  display: inline-block;
}

#seccion-titulo {
  display: inline-block;
}

#link-ingresar {
  color: #77bbff;
  text-decoration: none;
  font-size: 1.1rem;
  font-weight: 600;
}

#btn-envivo {
  background-color: red;
  padding: 5px 8px;
  color: white;
  text-decoration: none;
  font-weight: 600;
}

#orden-container {
  padding-inline: 10%;
  padding-top: 30px;
}

#oden-container_separador a p {
  text-decoration: none;
  color: #0d6ccd;
  font-weight: 700;
}

#orden-container_separador {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.links-separator {
  color: #666;
}

#titulo-principal {
  font-size: 2.5rem;
  font-weight: 800;
}

main {
  padding-inline: 10%;
  display: flex;
  gap: 2rem;
  align-items: flex-start;
}

#articulo-principal {
  flex: 1;
  max-width: 60%;
}

#articulo-principal_subtitulo {
  color: #202125;
  line-height: 2rem;
  font-weight: 500;
}

#imagen-principal {
  width: 100%;
}

#btn-compartir {
  background: none;
  border: none;
  font-size: 1.2rem;
}

.py {
  padding-block: 1rem;
}

.justificado {
  text-align: justify;
  font-size: 1.125rem;
  line-height: 1.875rem;
}

.imagen-secundaria {
  width: 600px;
}

#sidebar-noticias {
  display: none;
  flex: 0 0 35%;
}

#sidebar-noticias h2 {
  border-bottom: 4px solid #7cb4e7;
  width: max-content;
  font-size: 1.3rem;
}

#sidebar-noticias ol {
  list-style-type: none;
}

#sidebar-noticias li {
  padding-block: 10px;
  border-block: 1px solid #dadada;
  display: flex;
  gap: 0.5rem;
  align-items: flex-start;
}

.sidebar-noticias_num {
  flex-shrink: 0;
  color: #0d6ccd;
  font-size: 1.625rem;
  font-weight: 900;
  min-width: 2rem;
}

.sidebar-noticias_texto {
  flex: 1;
  padding: 0px;
  margin: 0;
  font-weight: 800;
}

#newsletter {
  background-color: #f5f5f5;
  padding: 10px 30px;
  margin-top: 2rem;
}

#newsletter form {
  width: 100%;
}

#newsletter-email {
  border: none;
  border-bottom: 1px solid black;
  padding: 0.8rem;
  background-color: white;
  width: 100%;
  font-size: 1.2rem;
}

#newsletter-submit {
  display: block;
  padding: 0.8rem;
  width: 100%;
  background-color: gray;
  border: none;
  color: white;
  margin-top: 10px;
  font-size: 1.2rem;
}

#hamb-navbar {
  text-align: center;
}

/* https://www.w3schools.com/css/css_rwd_mediaqueries.asp */
/* Celular */
@media screen and (max-width: 728px) {
  #btn-secciones {
    display: none;
  }

  #hamb-navbar {
    display: block;
  }
}

/* Tablet */
@media screen and (min-width: 729px) {
  #temas-hoy {
    display: flex;
  }

  #hamb-navbar {
    display: none;
  }
}

/* Escritorio */
@media screen and (min-width: 1024px) {
  #sidebar-noticias {
    display: block;
  }

  #btn-secciones {
    display: block;
  }
}