:root {
  text-size-adjust: none;

  --blue-color: royalblue;
  --purple-color: blueviolet;
  --green-color: green;
  --orange-color: darkorange;
  --red-color: orangered;
  --bg-color: #fff;
  --bg-faded-color: #f0f2f5;
  --bg-blur-color: #fff9;
  --bg-faded-blur-color: #f0f2f599;
  --text-color: #1c1e21;
  --text-insignificant-color: #1c1e2199;
  --link-color: var(--blue-color);
  --link-light-color: #4169e199;
  --link-faded-color: #4169e155;
  --link-bg-hover-color: #f0f2f599;
  --focus-ring-color: var(--link-color);
  --button-bg-color: var(--blue-color);
  --button-bg-blur-color: #4169e1aa;
  --button-text-color: white;
  --button-plain-bg-hover-color: rgba(128, 128, 128, 0.1);
  --reblog-color: var(--purple-color);
  --reblog-faded-color: #892be220;
  --reply-to-color: var(--orange-color);
  --favourite-color: var(--red-color);
  --reply-to-faded-color: #ffa6001a;
  --outline-color: rgba(128, 128, 128, 0.2);
  --outline-hover-color: rgba(128, 128, 128, 0.7);
  --divider-color: rgba(0, 0, 0, 0.1);
  --backdrop-color: rgba(255, 255, 255, 0.5);
  --img-bg-color: rgba(128, 128, 128, 0.2);
  --loader-color: #1c1e2199;
  --comment-line-color: #e5e5e5;

  --timing-function: cubic-bezier(0.3, 0.5, 0, 1);
}

@media (prefers-color-scheme: dark) {
  :root {
    --blue-color: CornflowerBlue;
    --purple-color: mediumpurple;
    --green-color: limegreen;
    --orange-color: orange;
    --bg-color: #242526;
    --bg-faded-color: #18191a;
    --bg-blur-color: #0009;
    --bg-faded-blur-color: #18191a99;
    --text-color: #f0f2f5;
    --text-insignificant-color: #f0f2f599;
    --link-light-color: #6494ed99;
    --link-faded-color: #6494ed88;
    --link-bg-hover-color: #34353799;
    --divider-color: rgba(255, 255, 255, 0.1);
    --bg-blur-color: #24252699;
    --backdrop-color: rgba(0, 0, 0, 0.5);
    --loader-color: #f0f2f599;
    --comment-line-color: #565656;
  }
}

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

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, '.SFNSText-Regular',
    sans-serif;
  font-size: 16px;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

a {
  color: var(--link-color);
  text-decoration-color: var(--link-faded-color);
  text-decoration-thickness: 2px;
  text-underline-offset: 2px;
  overflow-wrap: anywhere;
}
a:is(:hover, :focus) {
  text-decoration-color: var(--link-color);
}

img {
  max-width: 100%;
}

hr {
  height: 2px;
  border: 0;
  padding: 0;
  margin: 16px 0;
  background-image: linear-gradient(
    to right,
    transparent,
    var(--divider-color),
    transparent
  );
}

button,
input,
select,
textarea {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  max-width: 100%;
}

button,
.button {
  display: inline-block;
  padding: 8px 12px;
  border-radius: 2.5em;
  border: 0;
  background-color: var(--button-bg-color);
  color: var(--button-text-color);
  line-height: 1;
  vertical-align: middle;
  text-decoration: none;
}
:is(button, .button) > * {
  vertical-align: middle;
  pointer-events: none;
}
:is(button, .button):not(:disabled, .disabled):is(:hover, :focus) {
  cursor: pointer;
  filter: brightness(1.2);
}
:is(button, .button):not(:disabled, .disabled):active {
  filter: brightness(0.8);
}
:is(button:disabled, .button.disabled) {
  opacity: 0.5;
}

:is(button, .button).plain {
  background-color: transparent;
  color: var(--link-color);
  backdrop-filter: blur(12px);
}
:is(button, .button).plain2 {
  background-color: transparent;
  color: var(--link-color);
  backdrop-filter: blur(12px) invert(0.25) brightness(1.5);
}
:is(button, .button).light {
  background-color: var(--bg-faded-color);
  color: var(--text-color);
  border: 1px solid var(--outline-color);
}
:is(button, .button).light.danger:not(:disabled, .disabled) {
  color: var(--red-color);
}

:is(button, .button).block {
  display: block;
  width: 100%;
  padding: 12px;
}

:is(button, .button).textual {
  padding: 0;
  margin: 0;
  vertical-align: baseline;
  color: var(--link-color);
  background-color: transparent;
  border-radius: 0;
}

:is(button, .button).swap {
  display: grid;
  /* 1 column, 1 row */
  grid-template-columns: 1fr;
  grid-template-rows: 1fr;
}
:is(button, .button).swap > * {
  grid-column: 1;
  grid-row: 1;
  transition: opacity 0.3s;
}
:is(button, .button).swap > *:nth-child(2) {
  opacity: 0;
}
:is(button, .button).swap:is(:hover, :focus) > *:nth-child(2) {
  opacity: 1;
}
:is(button, .button).swap[data-swap-state='danger']:is(:hover, :focus) {
  color: var(--red-color);
  border-color: var(--red-color);
}
:is(button, .button).swap:is(:hover, :focus) > *:nth-child(1) {
  opacity: 0;
}

input[type='text'],
textarea,
select {
  color: var(--text-color);
  background-color: var(--bg-color);
  border: 2px solid var(--divider-color);
  padding: 8px;
  border-radius: 4px;
}
input[type='text']:focus,
textarea:focus,
select:focus {
  border-color: var(--outline-color);
}
input[type='text'].large,
textarea.large,
select.large,
button.large {
  font-size: 125%;
  padding: 12px;
}

button.small {
  font-size: 90%;
  padding: 4px 8px;
}

select.plain {
  border: 0;
  background-color: transparent;
}

pre code,
code {
  font-size: 90%;
  font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, Courier,
    monospace;
}

@media (prefers-color-scheme: dark) {
  :is(button, .button).plain2 {
    backdrop-filter: blur(12px) brightness(0.5);
  }
}

[tabindex='-1'] {
  outline: 0;
}

:not([tabindex='-1']):focus-visible {
  outline: 2px solid var(--focus-ring-color);
}

/* UTILS */

.ib {
  display: inline-block;
}

.spacer {
  flex-grow: 1;
}

.insignificant {
  color: var(--text-insignificant-color);
}

/* KEYFRAMES */

@keyframes appear {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes fade-in {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slide-up {
  0% {
    transform: translateY(100%);
  }
  100% {
    transform: translateY(0);
  }
}
