@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@400;700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Fira+Code:wght@400;700&display=swap');

* {
    box-sizing: border-box;
}

html {
  --text-color-normal: hsl(210, 70%, 92.2%);
  --text-color-light: hsl(210, 15%, 35%);
  --text-color-richer: hsl(210, 50%, 72%);
  --text-color-highlight: hsl(25, 70%, 45%);
}

body {
    margin: auto;
    background-color: #1F2831;
    color: var(--text-color-normal);
    font-family: 'Roboto', sans-serif;
    line-height: 1.50rem;
    font-size: 1.10rem;
}

h1 {
    text-transform: capitalize;
}

h3 {
    font-size: 1.5rem;
}

code {
    font-family: 'Fira Code', 'Ubuntu Monospace', monospace;
    background-color: white;
    border-radius: 5px;
    color: orangered;
    padding: 0 5px 0 5px;
}

form {
    width: 100%;
    padding: 2rem;
}

label,
button {
    display: inline-block;
    width: 90%;
    margin-top: 1rem;
    margin-bottom: 1rem;
}

button {
    border: none;
    background-color: lightgreen;
    padding: 1rem;
    transition: background-color 300ms ease;
    color: white;
    font-size: 1em;
    font-weight: 700;
}

button:hover {
    background-color: #ffa1ff;
}

input {
    width: 90%;
    padding: 1rem;
    margin: auto;
}

input[placeholder] {
    color: grey;
    font-weight: bold;
    font-size: 1rem;
}

span.form-error {
    display: block;
    background-color: rgba(255, 100, 100, 1);
    color: white;
    padding: 1em;
    border: 5px;
    width: 90%
}

article a {
    padding: 0.3rem;
    color: var(--text-color-highlight);
    background-color: var(--text-color-normal);
    border-radius: 2px;
}

pre code {
    font-size: 1.05rem;
}

header, .footer {
    background-color: #501fff;
    max-width: 100%;
    width: 100%;
}

header {
    position: sticky;
    top: 0;
    color: white;
    padding: 1rem;
    margin-bottom: 1rem;
}

.container {
    margin: 0 auto;
    width: 960px;
    background-color: #2c3e50;
}

article {
    padding: 3rem;
    margin-bottom: 1rem;
}

article p strong {
    font-weight: 700;
    color: var(--text-color-highlight);
    text-decoration: underline;
}

.radicalError {
    text-transform: uppercase;
}

article img {
    display: block;
    margin-bottom: 1rem;
    max-width: 100%;
}

.footer {
    position: absolute;
    padding: 1rem;
    margin-top: 1rem;
}

.footer a {
    margin-left: calc(50% - 63.5px);
    color: white;
    text-decoration: none;
    font-weight: 700;
}