:root {
    --bg: linear-gradient(135deg,#1e3c72,#2a5298);
    --card: rgba(255,255,255,0.15);
    --text: #fff;
}

body.dark {
    --bg: linear-gradient(135deg,#0f2027,#203a43,#2c5364);
    --card: rgba(0,0,0,0.4);
    --text: #fff;
}

body {
    min-height:100vh;
    background:var(--bg);
    display:flex;
    align-items:center;
    justify-content:center;
    padding:20px;
    transition:.3s;
}

.card-glass {
    backdrop-filter: blur(20px);
    background:var(--card);
    border-radius:20px;
    padding:35px;
    width:100%;
    max-width:480px;
    color:var(--text);
    box-shadow:0 15px 40px rgba(0,0,0,.3);
    animation:fadeIn .6s ease;
}

@keyframes fadeIn {
    from{opacity:0;transform:translateY(20px)}
    to{opacity:1;transform:translateY(0)}
}

.toggle-mode {
    position:fixed;
    top:15px;
    left:15px;
    cursor:pointer;
    font-size:14px;
    color:white;
}

.spinner-border {
    display:none;
}

.made-with-mk {
  width: 55px;
  height: 55px;
  display: block;
  position: fixed;
  z-index: 555;
  bottom: 60px;
  right: 40px;
  border-radius: 30px;
  background-color: rgba(255, 255, 255, 1);
  border: 1px solid rgba(0, 0, 0, 0.15);
  color: #FFFFFF;
  cursor: pointer;
  padding: 10px 12px;
  white-space: nowrap;
  overflow: hidden;
  -webkit-transition: 0.55s cubic-bezier(0.6, 0, 0.4, 1);
  -moz-transition: 0.55s cubic-bezier(0.6, 0, 0.4, 1);
  -o-transition: 0.55s cubic-bezier(0.6, 0, 0.4, 1);
  transition: 0.55s cubic-bezier(0.6, 0, 0.4, 1);
}
.made-with-mk:hover, .made-with-mk:active, .made-with-mk:focus {
  width: 230px;
  color: #FFFFFF;
  transition-duration: .55s;
  padding: 10px 19px;
}
.made-with-mk:hover .made-with, .made-with-mk:active .made-with, .made-with-mk:focus .made-with {
  opacity: 1;
}
.made-with-mk:hover .brand, .made-with-mk:active .brand, .made-with-mk:focus .brand {
  left: -11px;
}
.made-with-mk .brand,
.made-with-mk .made-with {
  float: left;
}
.made-with-mk .brand {
  position: relative;
  top: -12px;
  left: -11px;
  letter-spacing: 1px;
  vertical-align: middle;
  font-size: 16px;
  font-weight: 600;
}
.made-with-mk .made-with {
  color: rgba(0, 0, 0, 0.8);
  position: absolute;
  left: 65px;
  top: 14px;
  opacity: 0;
  margin: 0;
  -webkit-transition: 0.55s cubic-bezier(0.6, 0, 0.4, 1);
  -moz-transition: 0.55s cubic-bezier(0.6, 0, 0.4, 1);
  -o-transition: 0.55s cubic-bezier(0.6, 0, 0.4, 1);
  transition: 0.55s cubic-bezier(0.6, 0, 0.4, 1);
}
.made-with-mk .made-with strong {
  font-weight: 400;
  color: rgba(0, 0, 0, 0.9);
}