* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
}

body {
  font-family: verdana, sans-serif;
}

img {
  max-width: 100%;
}

blockquote {
  font-style: italic;
  margin: 0;
}

.error {
  color: #DD2222;
}

.container {
  display: flex;
  flex-direction: column;
  margin: auto;
  max-width: 800px;
  min-height: 100vh;
  padding: 15px;
}

.header__link {
  color: black;
  text-decoration: none;
}

.btn {
  background-color: rgb(40, 96, 144);
  border: 1px solid #222;
  border-radius: 5px;
  color: #ffffff;
  cursor: pointer;
  font-size: 20px;
  padding: 0.5em 0.5em;
  text-decoration: none;
}

.btn:hover {
  background-color: rgb(30, 85, 135);
}

.btn--small {
  font-size: 14px;
}

.btn--prev {
  margin-right: 1em;
}

.center {
  text-align: center;
}

.auth {
  align-items: center;
  display: flex;
  font-size: 14px;
  justify-content: space-between;
}

.auth__copy {
  margin: 0;
}

.auth__username {
  font-weight: bold;
}

.footer {
  border-top: 1px solid black;
  font-size: 12px;
  margin: 20px 0;
}

.form {
  display: flex;
  flex-direction: column;
  margin: 2em auto;
  width: 100%;
}

.form__search {
  border: 1px solid #999;
  border-radius: 5px;
  font-size: 20px;
  padding: 0.5em;
}

.form .filters {
  margin: 1em 0;
}

.filters__section {
  display: flex;
  padding: .5em 0;
}

.filters__subsection--sort {
  visibility: hidden;
}

.filters__subsection--sort.open {
  visibility: visible;
}

.filters__subsection {
  flex: 1;
}

.filters__subsection--static {
  flex: 1;
}

.filters__subsection:nth-child(2) {
  padding: 0 1em;
}

.form__field {
  margin: 10px 0;
}

.form__text-field {
  border: 1px solid #000000;
  border-radius: 4px;
  font-size: 16px;
  padding: 5px;
  width: 100%;
}

.form__submit {
  font-size: 16px;
}

.form--login {
  margin-top: 0;
}

.form--login .form__label {
  display: block;
  margin: 10px 0;
}

.results-container {
  padding-bottom: 1em;
}

.results__subheader {
  border-bottom: 1px solid black;
  margin: 1.5em 0;
  padding: 5px 0;
}

.results__result {
  background: #efefef;
  border: 1px solid black;
  border-radius: 5px;
  margin: 1em 0;
  padding: 0.5em;
}

.results__result.threads .result__info {
  margin-bottom: 0;
}

.result__info {
  display: flex;
  font-size: 12px;
  justify-content: space-between;
}

@media (max-width: 500px) {
  .result__info {
    flex-direction: column;
  }

  .result__info span {
    display: inline-block;
    margin: 5px 0;
  }

  .filters__section {
    flex-direction: column;
  }

  .filters__subsection:nth-child(2) {
    padding: 0;
  }