:root {
  --motion-duration-fast: 180ms;
  --motion-duration: 520ms;
  --motion-duration-slow: 760ms;
  --motion-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --motion-ease-standard: cubic-bezier(0.4, 0, 0.2, 1);
}

@view-transition {
  navigation: auto;
}

.home .wordmark,
.login-page .wordmark {
  view-transition-name: custo-wordmark;
}

.atmosphere__veil {
  view-transition-name: custo-sky;
}

.login-flow {
  view-transition-name: custo-login-flow;
}

html,
body,
.action,
.quiet,
.step input,
.done-line {
  transition-property: background-color, color, border-color;
  transition-duration: var(--motion-duration);
  transition-timing-function: var(--motion-ease);
}

/* The press itself is not a 520ms colour fade. */
.login,
.back {
  transition: none;
}

/* Background steps are written on the main thread so the overflow sample
   follows them. Leave color and border on the page curve. */
html.is-overflow-paint,
html.is-overflow-paint body {
  transition-property: color, border-color;
}

.atmosphere,
.logo {
  transition: opacity var(--motion-duration) var(--motion-ease);
}

html[data-theme="light"] .atmosphere {
  opacity: 0;
}

.login {
  view-transition-name: custo-login;
}

.back {
  view-transition-name: custo-back;
}

::view-transition {
  pointer-events: none;
}

::view-transition-group(*),
::view-transition-old(*),
::view-transition-new(*) {
  animation-duration: var(--motion-duration);
  animation-timing-function: var(--motion-ease);
}

::view-transition-group(root),
::view-transition-group(custo-login),
::view-transition-group(custo-back) {
  animation-duration: 0s;
}

html:active-view-transition-type(account-layout)::view-transition-old(root),
html:active-view-transition-type(account-layout)::view-transition-new(root) {
  animation: none;
}

::view-transition-old(custo-wordmark),
::view-transition-new(custo-wordmark),
::view-transition-old(custo-sky),
::view-transition-new(custo-sky) {
  width: 100%;
  height: 100%;
  mix-blend-mode: normal;
  animation: none;
  overflow: clip;
}

::view-transition-old(custo-wordmark),
::view-transition-old(custo-sky) {
  opacity: 0;
}

html:active-view-transition-type(to-home)::view-transition-old(root),
html:active-view-transition-type(to-login)::view-transition-old(root) {
  animation: none;
  opacity: 0;
}

html:active-view-transition-type(to-home)::view-transition-new(root),
html:active-view-transition-type(to-login)::view-transition-new(root) {
  animation: none;
  opacity: 1;
}

html:active-view-transition-type(to-home)::view-transition-old(custo-login-flow) {
  mix-blend-mode: normal;
  animation: motion-leave-up var(--motion-duration) var(--motion-ease) both;
}

html:active-view-transition-type(to-home)::view-transition-old(custo-back),
html:active-view-transition-type(to-login)::view-transition-old(custo-login) {
  mix-blend-mode: normal;
  animation: none;
  opacity: 0;
}

html:active-view-transition-type(to-home)::view-transition-new(custo-login),
html:active-view-transition-type(to-login)::view-transition-new(custo-back) {
  mix-blend-mode: normal;
  animation: none;
  opacity: 1;
}

html:active-view-transition-type(to-login)::view-transition-new(custo-login-flow) {
  mix-blend-mode: normal;
  animation: motion-arrive var(--motion-duration) var(--motion-ease) both;
}

html.is-motion-leave .login,
html.is-motion-leave .back,
html.is-motion-leave .login-flow {
  animation: motion-fade-out var(--motion-duration) var(--motion-ease) forwards;
}

html.is-motion-enter .login,
html.is-motion-enter .back,
html.is-motion-enter .login-flow {
  animation: motion-fade-in var(--motion-duration) var(--motion-ease);
}

@keyframes motion-fade-out {
  to {
    opacity: 0;
  }
}

@keyframes motion-fade-in {
  from {
    opacity: 0;
  }
}

@keyframes motion-leave-up {
  from {
    opacity: 1;
    transform: translateY(0);
  }
  to {
    opacity: 0;
    transform: translateY(-10px);
  }
}

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

.toasts {
  position: fixed;
  z-index: 4;
  left: 0;
  right: 0;
  bottom: calc(env(safe-area-inset-bottom, 0px) + 72px);
  display: flex;
  justify-content: center;
  pointer-events: none;
}

.toasts .t-stack {
  width: min(22rem, calc(100vw - 48px));
  height: 2rem;
  pointer-events: none;
}

.toasts .t-stack:not(:empty) {
  pointer-events: auto;
}

.toast {
  margin: 0;
  width: 100%;
  max-width: min(22rem, calc(100vw - 48px));
  padding: 10px 16px;
  border-radius: 999px;
  background: var(--toast-bg);
  color: var(--toast-fg);
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  line-height: 1;
  text-align: center;
  text-transform: uppercase;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-variant-numeric: tabular-nums;
}

.toast.is-in {
  animation: motion-toast-in var(--motion-duration-fast) var(--motion-ease);
}

.toast.is-out {
  animation: motion-toast-out var(--motion-duration-fast) var(--motion-ease) forwards;
}

.toast.is-tick {
  animation: motion-toast-tick var(--motion-duration-fast) var(--motion-ease);
}

@keyframes motion-toast-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
}

@keyframes motion-toast-out {
  to {
    opacity: 0;
    transform: translateY(6px);
  }
}

@keyframes motion-toast-tick {
  from {
    transform: translateY(3px);
  }
}

@media (prefers-reduced-motion: reduce) {
  @view-transition {
    navigation: none;
  }

  ::view-transition-group(*),
  ::view-transition-old(*),
  ::view-transition-new(*) {
    animation: none;
  }

  html.is-motion-leave .login,
  html.is-motion-leave .back,
  html.is-motion-leave .login-flow,
  html.is-motion-enter .login,
  html.is-motion-enter .back,
  html.is-motion-enter .login-flow {
    animation: none;
  }

  .toast.is-in,
  .toast.is-out,
  .toast.is-tick {
    animation: none;
  }

  html,
  body,
  .atmosphere,
  .logo,
  .login,
  .back,
  .action,
  .quiet,
  .step input,
  .done-line {
    transition: none;
  }
}