:root {
    --font-base: 'Roboto', Helvetica, Arial, Lucida, sans-serif;
    --color-text: #FFF;
    --color-bg: #000;
}

/* Estilos default */
body {
    font-family: var(--font-base);
    color: var(--color-text);
    background: var(--color-bg);
    padding: 0;
    margin: 0;
}

a {
    color: var(--color-text);
    text-decoration: none;
}

/* Títulos responsive */
h1, h2, h3, h4, h5, h6 {
    font-weight: 800;
}

h1 {
    font-size: 5rem;
    font-weight: 800;
}

h2 {
    font-size: 2rem;
    font-weight: 700;
}

h3 {
    padding-bottom: 0.5rem;
    font-weight: 100;
    font-size: 26px;
    margin-top: 41px;
    
}

h4 {
    padding-bottom:0.5rem;
    font-weight: 100;
    font-size: 26px;
}

h5 {
    font-size: 1.125rem;
}

h6 {
    font-size: 1rem;
}

code {
    background: var(--color-bg);
}

img {
    max-width: 100%;
    height: auto;
}
/* layout */

header#main-header nav {
    text-align: center;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1em 0;
}

footer#main-footer {
    border-top: 1px solid var(--color-text);
    margin-top: 2em;
    text-align: center;
    padding: 2em 0 1em 0;
}

/* Components */

.hero {
    text-align: center;
    padding: 1em 0;
    min-height: 50vh;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.nav-link {
    color: var(--color-text);
    text-decoration: none;
    padding: 0.25em 0.5em;
    font-weight: 100;
    text-transform: uppercase;
    width: 100px;
}

.button {
    background-color: var(--color-text);
    color: var(--color-bg);
    border-radius: 0;
}
.button:hover {
    background-color: var(--color-bg);
    color: var(--color-text);
}


.nav-link:hover {
    text-decoration: underline;
}

.text-center {
    text-align: center;
}

/* Estilos adicionales para títulos */
.lead {
    font-size: 1.25rem;
    font-weight: 300;
    line-height: 1.6;
    margin-bottom: 1.5em;
}

/* Espaciado mejorado para secciones */
section {
    margin-bottom: 2rem;
}

/* Estilos para listas en criterios de evaluación */
section ul {
    margin-bottom: 1rem;
}

section li {
    margin-bottom: 0.5rem;
    line-height: 1.5;
}

/* Separadores visuales */
hr {
    border: none;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    margin: 2rem 0;
}

/* Mejoras para la rúbrica */
section h3 {
    color: var(--color-text);
    border-bottom: 2px solid rgba(255, 255, 255, 0.3);
    padding-bottom: 0.5rem;
}

section h4 {
    color: rgba(255, 255, 255, 0.9);
    font-weight: 600;
}

main{
    width: 90%;
    margin-left: 0 auto;
    margin-top: 40px;
    margin-bottom: 40px;
    min-width: 320;
    max-width: 1640px;  max-width: 1600px; 
}
.row {
  display: flex;
  flex-wrap: wrap;
  margin: 0 -10px;
}
.pregunta p:first-child {
  text-decoration: underline;
  text-decoration-color: #1fd4f8;
  text-decoration-thickness: 3px;
}