*,
::after,
::before {
  box-sizing: border-box;
}

html {
  font-size: 100%;
} /*16px*/

:root {
  /* fonts  */
  --small-text: 0.875rem;
  --extra-small-text: 0.7em;
  /* rest of the vars */
  --backgroundColor: var(--grey-50);
  --textColor: var(--grey-900);
  --borderRadius: 0.25rem;
  --letterSpacing: 1px;
  --transition: 0.3s ease-in-out all;
  --max-width: 1120px;
  --fixed-width: 600px;

  /* box shadow*/
  --shadow-1: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-2: 0 4px 6px -1px rgba(0, 0, 0, 0.1),
    0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-3: 0 10px 15px -3px rgba(0, 0, 0, 0.1),
    0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-4: 0 20px 25px -5px rgba(0, 0, 0, 0.1),
    0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

body {
  background: rgb(86, 93, 97);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen,
    Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  font-weight: 400;
  line-height: 1.75;
  color: var(--textColor);
}

p {
  margin-bottom: 1.5rem;
  max-width: 40em;
}

h1,
h2,
h3,
h4,
h5 {
  margin: 0;
  margin-bottom: 1.38rem;
  font-weight: 400;
  line-height: 1.3;
  text-transform: capitalize;
  letter-spacing: var(--letterSpacing);
}

h1 {
  margin-top: 0;
  font-size: 3.052rem;
}

h2 {
  font-size: 2.441rem;
}

h3 {
  font-size: 1.953rem;
}

h4 {
  font-size: 1.563rem;
}

h5 {
  font-size: 1.25rem;
}

small,
.text-small {
  font-size: var(--small-text);
}

a {
  text-decoration: none;
}
ul {
  list-style-type: none;
  padding: 0;
}

.img {
  width: 100%;
  display: block;
  object-fit: cover;
}

@keyframes spinner {
  to {
    transform: rotate(360deg);
  }
}

.loading {
  width: 6rem;
  height: 6rem;
  border: 5px gray;
  border-radius: 50%;
  border-top-color: rgb(51, 69, 80);
  animation: spinner 0.6s linear infinite;
}
.loading {
  margin: 0 auto;
  margin-top: 4rem;
}
/* title */

.title {
  text-align: center;
  margin-bottom: 3rem;
}

.title-underline {
  background: var(--primary-500);
  width: 7rem;
  height: 0.25rem;
  margin: 0 auto;
  margin-top: -1rem;
}

/*
=============== 
Wikipedia 
===============
*/
.wiki {
  padding: 5rem 0;
  width: 90vw;
  max-width: 1170px;
  margin: 0 auto;
}
.container {
  text-align: center;
}
.container img {
  width: 200px;
}
.container h3 {
  margin-bottom: 2rem;
  color: white;
  font-weight: 600;
}

.form {
  width: 100%;
  margin: 0 auto;
  border-radius: var(--borderRadius);
  display: grid;
  grid-template-columns: auto 100px;
}
.form-input,
.submit-btn {
  padding: 0.75rem;
  background: rgb(177, 177, 177);
  border: 1px solid grey;
}
.form-input {
  border-right: transparent;
  border-top-left-radius: var(--borderRadius);
  border-bottom-left-radius: var(--borderRadius);
}
.submit-btn {
  border: 1px solid grey;
  border-left: transparent;
  border-top-right-radius: var(--borderRadius);
  border-bottom-right-radius: var(--borderRadius);
  text-transform: capitalize;
  background: rgb(30, 43, 51);
  color: white;
  transition: var(--transition);
  cursor: pointer;
}
.submit-btn:hover {
  color: grey;
}

.results {
  padding: 2rem 0;
}

.error {
  text-align: center;
  text-transform: capitalize;
  color: white;
  font-size: 1.2rem;
}

.articles {
  display: grid;
  gap: 1rem;
}

.articles a {
  display: block;
  background: rgb(51, 69, 80);
  color: white;
  padding: 1.5rem 2rem;
  border-radius: var(--borderRadius);
  transition: var(--transition);
}
.articles p {
  color: white;
  transition: var(--transition);
}

.articles a:hover {
  background: rgb(88, 110, 124);
  color: var(--white);
}

@media screen and (min-width: 768px) {
  .articles {
    grid-template-columns: 1fr 1fr;
  }
  .form {
    max-width: 600px;
  }
}
@media screen and (min-width: 992px) {
  .articles {
    grid-template-columns: 1fr 1fr 1fr;
  }
}