/* Boilerplate */
* {
  box-sizing: border-box;
}

@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}

/* CSS */
@font-face {
  font-family: 'Source Sans Pro';
  src: url('fonts/SourceSansPro-Regular.ttf.woff2');
}

:root {
  --red: #fe5f55;
  --bg-1: #2b5876;
  --bg-2: #4e4376;
  --text: #d8d8f6;
  --darker: #7f9c96;
  --font: "Source Sans Pro", -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
}

html {
  background: var(--bg-1); /* fallback for old browsers */
  background: -webkit-linear-gradient(to right, var(--bg-1), var(--bg-2)); /* Chrome 10-25, Safari 5.1-6 */
  background: linear-gradient(to right, var(--bg-1), var(--bg-2)); /* W3C, IE 10+/ Edge, Firefox 16+, Chrome 26+, Opera 12+, Safari 7+ */
}

body {
  color: var(--text);
  font-family: var(--font);
  text-align: center;
  margin: 0 auto;
}

a {
  color: var(--text);
}

header {
  background: rgba(0, 0, 0, 50);
  backdrop-filter: blur(12px);
  margin: 0;
  padding: .5rem;
  text-align: left;
}

.settings-link {
  float: right;
  font-size: 175%;
  text-decoration: none;
  min-height: 3rem;
  display: flex;
  padding: 0 .5rem;
  align-items: center;
}

.error {
  color: var(--red);
}

div {
  margin: 0 auto;
}

form {
  margin: 1rem auto;
}

.left_container {
  width: 12rem;
}

.left_container img {
  border-radius: 1rem;
}

.right_container {
  padding: 1rem;
  width: 80%;
}

@media screen and (min-width: 900px) {
  .left_container {
    float: left;
  }

  .right_container {
    float: right;
    width: calc(60vw - 15rem);
  }
}

.auto-fit {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.auto-fit div img {
  border-radius: 1rem;
}

.popup {
  display: none;
  position: fixed;
  z-index: 1;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: rgba(0, 0, 0, 0.5);
}

.popup-content {
  background-color: var(--bg-1);
  margin: 10% auto;
  padding: 20px;
  border: thin solid var(--darker);
  border-radius: 1rem;
  width: 80%;
  max-width: 60vw;
  overflow: hidden;
}

.close {
  color: var(--darker);
  float: right;
  font-size: 28px;
  font-weight: bold;
  cursor: pointer;
}

.close:hover,
.close:focus {
  color: var(--text);
  text-decoration: none;
  cursor: pointer;
}

input[type=text],
input[type=password],
input[type=submit],
input[type=number],
input[type=button],
.btn {
  background: rgba(0, 0, 0, 0.5);
  border: thin solid var(--darker);
  padding: .5rem;
  color: var(--text);
  border-radius: 1rem;
  text-decoration: none;
  font-family: var(--font);
  font-size: 100%;
  transition: background 200ms;
}

input[type=number] {
  padding: .5rem 1rem;
  width: 13ch;
}

input[type=submit]:hover,
input[type=button]:hover,
input[type=text]:hover,
input[type=text]:focus,
input[type=password]:hover,
input[type=password]:focus,
.btn:hover {
  background: rgba(0, 0, 0, 0.7);
  outline: none;
}

input[type=submit]:active,
.btn:active {
  background: rgba(0, 0, 0, 0.8);
}

.poster {
  width: 12rem;
}

.invisible_input {
  width: 0;
  height: 0;
  border: none;
  padding: 0 !important;
}