:root{
  --v:#8877E6;
  --ink:#f5f5f7;
  --paper:#0e0f12;
  --card:rgba(22,23,27,.82);
  --field:rgba(255,255,255,.04);
  --field-focus:rgba(255,255,255,.07);
  --mute:#86868b;
  --line:rgba(255,255,255,.08);
  --err:#ff453a;
  --ok:#32d74b;
  --r-card:24px;
  --r-elem:12px;
  --r-inner:9px;
  --h-control:44px;
}

*{
  box-sizing:border-box;
  -webkit-tap-highlight-color:transparent;
}

html,body{
  touch-action:manipulation;
  overflow-x:hidden;
}

body{
  margin:0;
  min-height:100vh;
  min-height:100svh;
  display:flex;
  align-items:center;
  justify-content:center;
  background:var(--paper);
  color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"SF Pro Text","SF Pro Display","Hanken Grotesk",system-ui,sans-serif;
  -webkit-font-smoothing:antialiased;
  padding:20px;
  position:relative;
}

a{
  color:inherit;
  text-decoration:none;
}

#canvas-waves{
  position:fixed;
  top:0;
  left:0;
  width:100%;
  height:100%;
  z-index:0;
  pointer-events:none;
}

.auth-card{
  width:100%;
  max-width:380px;
  padding:28px;
  border-radius:var(--r-card);
  background:var(--card);
  backdrop-filter:blur(32px);
  -webkit-backdrop-filter:blur(32px);
  border:1px solid var(--line);
  position:relative;
  z-index:1;
  animation:fadeUp .45s cubic-bezier(.16,1,.3,1) both;
  transform-origin:center center;
}

.auth-card.mode-switch{
  animation:cardPulse .32s cubic-bezier(.16,1,.3,1) both;
}

@keyframes cardPulse{
  0%{transform:scale(.985)}
  100%{transform:scale(1)}
}

@keyframes fadeUp{
  0%{opacity:0;transform:translateY(10px) scale(.98)}
  100%{opacity:1;transform:translateY(0) scale(1)}
}

.shake{
  animation:shake .3s cubic-bezier(.36,.07,.19,.97) both;
}

@keyframes shake{
  20%,80%{transform:translateX(3px)}
  40%,60%{transform:translateX(-3px)}
}

.logo-title{
  font-size:22px;
  font-weight:700;
  letter-spacing:-.03em;
  color:var(--ink);
  text-align:center;
  margin:0 0 4px;
}

.sub{
  font-size:13px;
  color:var(--mute);
  text-align:center;
  margin:0 0 20px;
  letter-spacing:-.01em;
  transition:opacity .15s ease,transform .15s ease;
}

.tabs{
  position:relative;
  display:flex;
  margin-bottom:20px;
  padding:3px;
  background:rgba(255,255,255,.05);
  border-radius:var(--r-elem);
  border:1px solid rgba(255,255,255,.03);
  height:38px;
}

.tab-glider{
  position:absolute;
  top:3px;
  left:3px;
  width:calc(50% - 3px);
  height:calc(100% - 6px);
  background:rgba(255,255,255,.11);
  border-radius:var(--r-inner);
  transition:transform .28s cubic-bezier(.16,1,.3,1);
  pointer-events:none;
}

.tabs[data-active="reg"] .tab-glider{
  transform:translateX(100%);
}

.tab{
  flex:1;
  position:relative;
  z-index:1;
  border:none;
  background:transparent;
  padding:0;
  height:100%;
  font-size:13px;
  font-weight:500;
  color:var(--mute);
  cursor:pointer;
  border-radius:var(--r-inner);
  transition:color .2s ease;
  font-family:inherit;
  display:flex;
  align-items:center;
  justify-content:center;
}

.tab.active{
  color:var(--ink);
  font-weight:600;
}

.form-body{
  will-change:transform,opacity;
}

.slide-left{
  animation:slideLeft .26s cubic-bezier(.16,1,.3,1) both;
}

.slide-right{
  animation:slideRight .26s cubic-bezier(.16,1,.3,1) both;
}

@keyframes slideLeft{
  0%{opacity:.6;transform:translateX(-6px)}
  100%{opacity:1;transform:translateX(0)}
}

@keyframes slideRight{
  0%{opacity:.6;transform:translateX(6px)}
  100%{opacity:1;transform:translateX(0)}
}

.form-group{
  margin-bottom:16px;
}

label{
  display:block;
  font-size:11px;
  font-weight:600;
  text-transform:uppercase;
  color:var(--mute);
  margin-bottom:7px;
  letter-spacing:.04em;
}

input{
  width:100%;
  height:var(--h-control);
  padding:0 14px;
  border-radius:var(--r-elem);
  border:1px solid var(--line);
  background:var(--field);
  font-size:16px;
  color:var(--ink);
  font-family:inherit;
  outline:none;
  transition:border-color .2s ease,background-color .2s ease;
}

input:focus{
  border-color:var(--v);
  background:var(--field-focus);
}

.rules-wrap{
  display:grid;
  grid-template-rows:0fr;
  transition:grid-template-rows .3s cubic-bezier(.16,1,.3,1),margin .3s cubic-bezier(.16,1,.3,1),opacity .22s ease;
  opacity:0;
  margin:0;
}

.rules-wrap.active{
  grid-template-rows:1fr;
  opacity:1;
  margin:8px 0 16px;
}

.rules-inner{
  overflow:hidden;
  display:flex;
  flex-direction:column;
  gap:7px;
  font-size:12px;
  color:var(--mute);
}

.rule{
  display:flex;
  align-items:center;
  gap:8px;
  transition:color .2s ease;
}

.rule i{
  width:14px;
  height:14px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.14);
  display:flex;
  align-items:center;
  justify-content:center;
  transition:all .2s ease;
}

.rule i::after{
  content:"";
  width:4px;
  height:4px;
  border-radius:50%;
  background:var(--ok);
  opacity:0;
  transform:scale(0);
  transition:all .2s cubic-bezier(.16,1,.3,1);
}

.rule.ok{
  color:var(--ink);
}

.rule.ok i{
  border-color:var(--ok);
}

.rule.ok i::after{
  opacity:1;
  transform:scale(1);
}

.btn{
  width:100%;
  height:var(--h-control);
  border-radius:var(--r-elem);
  border:none;
  background:var(--v);
  color:#ffffff;
  font-size:14px;
  font-weight:600;
  letter-spacing:-.01em;
  font-family:inherit;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:center;
  margin-top:18px;
  transition:opacity .15s ease,transform .15s cubic-bezier(.16,1,.3,1);
}

.btn:hover{
  opacity:.92;
}

.btn:active{
  transform:scale(.985);
}

.btn:disabled{
  opacity:.4;
  cursor:not-allowed;
  transform:none;
}

.back{
  display:block;
  text-align:center;
  font-size:13px;
  color:var(--mute);
  margin-top:20px;
  font-weight:500;
  transition:color .2s ease;
}

.back:hover{
  color:var(--ink);
}

#toast-container{
  position:fixed;
  bottom:24px;
  right:24px;
  display:flex;
  flex-direction:column;
  gap:10px;
  z-index:9999;
  pointer-events:none;
}

.toast{
  pointer-events:auto;
  min-width:270px;
  max-width:calc(100vw - 40px);
  padding:13px 16px;
  background:rgba(22,23,27,.94);
  backdrop-filter:blur(24px);
  -webkit-backdrop-filter:blur(24px);
  border:1px solid var(--line);
  border-radius:var(--r-elem);
  font-size:13px;
  font-weight:500;
  color:var(--ink);
  display:flex;
  align-items:center;
  gap:10px;
  animation:slideIn .35s cubic-bezier(.16,1,.3,1) forwards;
  transform-origin:bottom right;
}

.toast::before{
  content:"";
  display:block;
  width:7px;
  height:7px;
  border-radius:50%;
  flex-shrink:0;
}

.toast.error::before{background:var(--err)}
.toast.success::before{background:var(--ok)}
.toast.info::before{background:var(--v)}

.toast.hiding{
  animation:fadeOut .25s cubic-bezier(.16,1,.3,1) forwards;
}

@keyframes slideIn{
  0%{opacity:0;transform:translate3d(16px,8px,0) scale(.96)}
  100%{opacity:1;transform:translate3d(0,0,0) scale(1)}
}

@keyframes fadeOut{
  0%{opacity:1;transform:translate3d(0,0,0) scale(1)}
  100%{opacity:0;transform:translate3d(16px,0,0) scale(.96)}
}

@media (max-width:480px){
  body{
    padding:16px;
  }
  .auth-card{
    padding:24px 20px;
    border-radius:20px;
  }
  #toast-container{
    bottom:16px;
    right:16px;
    left:16px;
    align-items:stretch;
  }
  .toast{
    min-width:unset;
    width:100%;
  }
}