:root {
  --bg-color: var(--tg-theme-bg-color, #212121);
  --text-color: var(--tg-theme-text-color, #ffffff);
  --hint-color: var(--tg-theme-hint-color, #aaaaaa);
  --link-color: var(--tg-theme-link-color, #8774e1);
  --button-color: var(--tg-theme-button-color, #8774e1);
  --button-text_color: var(--tg-theme-button-text-color, #ffffff);
  --secondary-bg-color: var(--tg-theme-secondary-bg-color, #0f0f0f);
  --border-radius: .25rem;

  --error-color: #f44336;
  --warning-color: #ff9800;
  --success-color: #4caf50;
  --info-color: #2196f3;
  --highlight-color: #ffdd33;

  --black-color: #000;
}

* {
  box-sizing: border-box;
}

img {
  max-width: 100%;
}

body {
  color-scheme: var(--tg-color-scheme);
  font-family: sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  font-size: 16px;
  margin: 0;
  padding: 0;
  min-height: 100vh;
}

p {
  line-height: 1.75;
}

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

@media (min-width: 48rem) {
  a:hover {
    text-decoration: underline;
  }
}

button, .button {
  display: block;
  width: 100%;
  font-size: 16px;
  margin: 1em 0;
  padding: .85em 1.25em;
  border: none;
  border-radius: var(--border-radius);
  background-color: var(--button-color);
  color: var(--button-text-color);
  cursor: pointer;
  text-align: center;
}

@media (min-width: 48rem) {
  button:hover, .button:hover {
    text-decoration: none;
  }
}

button:disabled, .button.disabled {
  /* background-color: var(--hint-color); */
  opacity: .25;
  cursor: not-allowed;
}

button:active, .button:active {
  box-shadow: inset 2px 2px 2px rgba(0, 0, 0, 0.5), inset -2px -2px 2px rgba(0, 0, 0, 0.5);
}

input:disabled {
  opacity: .25;
}

input[type="text"],
input[type="number"],
input[type="email"],
input[type="password"],
input[type="tel"],
input[type="url"],
input[type="search"],
.input[contenteditable],
textarea {
    display: block;
    box-sizing: border-box;
    font-size: 16px;
    width: 100%;
    padding: 0.85em 1.25em;
    margin: 1em 0;
    border: 1px solid var(--link-color);
    background-color: var(--bg-color);
    border-radius: var(--border-radius);
    color: var(--text-color);
    text-align: start;
}

input[type="text"]:focus,
input[type="number"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
input[type="tel"]:focus,
input[type="url"]:focus,
input[type="search"]:focus,
.input[contenteditable]:focus,
textarea:focus {
  outline: none;
}

input[type="text"]::-webkit-input-placeholder,
input[type="number"]::-webkit-input-placeholder,
input[type="email"]::-webkit-input-placeholder,
input[type="password"]::-webkit-input-placeholder,
input[type="tel"]::-webkit-input-placeholder,    
input[type="url"]::-webkit-input-placeholder,
input[type="search"]::-webkit-input-placeholder,
textarea::-webkit-input-placeholder {
    color: var(--hint-color);
}

input[type="text"]::-moz-placeholder,
input[type="number"]::-moz-placeholder,
input[type="email"]::-moz-placeholder,
input[type="password"]::-moz-placeholder,
input[type="tel"]::-moz-placeholder,    
input[type="url"]::-moz-placeholder,
input[type="search"]::-moz-placeholder,
textarea::-moz-placeholder {
    color: var(--hint-color);
}

input[type="text"]:-ms-input-placeholder,
input[type="number"]:-ms-input-placeholder,
input[type="email"]:-ms-input-placeholder,
input[type="password"]:-ms-input-placeholder,
input[type="tel"]:-ms-input-placeholder,    
input[type="url"]:-ms-input-placeholder,
input[type="search"]:-ms-input-placeholder,
textarea:-ms-input-placeholder {
    color: var(--hint-color);
}

.input[data-placeholder],
textarea[data-placeholder] {
    position: relative;
}

.input[data-placeholder]:empty:before,
textarea[data-placeholder]:empty:before {
    position: absolute;
    left: 0;
    right: 0;
    content: attr(data-placeholder);
    color: var(--hint-color);
    padding: 0 1.25em;
    font-weight: normal;
    white-space: nowrap;
    text-overflow: ellipsis;
    overflow: hidden;
    pointer-events: none;
    z-index: -1;
}

ul, ol {
  text-align: left;
  padding: 1.25em;
}

li {
  padding: .5em 0;
}


.accordion {
  border-radius: var(--border-radius);
  margin: 0 auto;
  background: var(--secondary-bg-color);
}

.accordion dt > a {
  color: var(--link-color);
  display: block;
  padding: 1em;
  text-decoration: none;
  border-bottom: 1px solid var(--bg-color);
}

.accordion dt:target > a {
  color: var(--text-color);
  font-weight: 700;
  border-bottom: none;
}

.accordion dt:not(:last-of-type) {
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.accordion dt:last-of-type {
  border-radius: 0 0 var(--border-radius) var(--border-radius);
}

.accordion dd:last-of-type {
  padding-bottom: 1rem;
}

.accordion dt:target:last-of-type {
  border-radius: 0;
}

.accordion dt:target + dd {
  display: block;
}

.accordion dt:target + dd > * {
  position: relative;
  animation: showAccordionItem .2s ease-in-out forwards;
}

@keyframes showAccordionItem {
  from {
    margin-top: -100%;
  }
  to {
    margin-top: 0;
  }
}

.accordion dt:first-child {
  border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.accordion dd {
  display: none;
  margin: 0;
  padding: 0;
  overflow: hidden;
}

.accordion dd div {
  margin: 0;
  padding: .5em 1.5em;
}

input[type=checkbox].switch {
  cursor: pointer;
  margin: 1rem auto;
  position: relative;
  width: 3rem;
  height: 1.75rem;
  border-radius: 1.5rem;
  outline: none;
  background-color: var(--hint-color);
  appearance: none;
  transition: background-color .3s;
}

input[type=checkbox].switch::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 30%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  height: 1.25rem;
  width: 1.25rem;
  background-color: var(--text-color);
  transition: left .3s;
}

input[type=checkbox].switch:checked {
  background-color: var(--button-color);
}

input[type=checkbox].switch:checked::after {
  left: 70%;
}

kbd {
  color: var(--text-color);
  border: 1px solid var(--text-color);
  border-bottom: 3px solid var(--text-color);
  border-radius: var(--border-radius);
  padding: 0.1rem 0.4rem;
}

mark {
  padding: .25em;
  border-radius: var(--border-radius);
  background-color: var(--highlight-color);
  color: black;
}

blockquote {
  margin-inline-start: 1rem;
  margin-inline-end: 0;
  margin-block: 2rem;
  padding: 0.4rem 0.8rem;
  border-inline-start: 0.25rem solid var(--link-color);
  color: var(--text-light);
  font-style: italic;
}

cite {
  font-size: 0.9rem;
  color: var(--text-light);
  font-style: normal;
}