body {
  margin: 0;
  padding: 0;
  width: 100%;
  font-family: "Roboto", sans-serif;
  color: #000;
}

#bg {
  background-image: url(bg.jpg);
  position: fixed;
  width: 100vw;
  height: 100vh;
  z-index:0;
  background-position: 50% 50%;
  background-size: cover;
  background-repeat: no-repeat;
}

#wrapper {
  position: absolute;
  top: 20%;
  left: 50%;
  width: 320px;
  text-align: center;
  transform: translateX(-50%);
}
.letter {
  font-size: 40px;
  color: white;
  width: 80px;
  height: 80px;
  border-radius: 40px;
  text-align: center;
  line-height: 80px;
  display: inline-block;
  font-weight: 700;
}

#wrapper:hover .letter {
  animation: none;
}

.letterE {
  background-color: rgba(51, 175, 192, 0.8);
  animation: rotatelet 2s ease-out infinite;
}
.letterS {
  background-color: rgba(205, 9, 110, 0.8);
  animation: rotatelet 1.6s ease-out infinite;
  margin-left: -20px;
}
.letterP {
  background-color: rgba(19, 114, 190, 0.8);
  animation: rotatelet 2.1s ease-out infinite;
  margin-left: -20px;
}

.letterE {
  animation-delay: 0s;
}
.letterS {
  animation-delay: 0.75s;
}
.letterP {
  animation-delay: 0.5s;
}

@keyframes rotatelet {
  0% {
    transform: rotateY(0deg);
    filter: brightness(1);
  }
  12% {
    filter: brightness(0.75);
  }
  50% {
    transform: rotateY(180deg);
    filter: brightness(0.75);
  }
  62% {
    filter: brightness(0.75);
  }
  100% {
    transform: rotateY(0deg);
    filter: brightness(1);
  }
}

.promo {
  font-size: 25px;
  text-align: center;
  padding-top: 5px;
}
.info {
  font-size: 12px;
  text-align: center;
  padding-top: 15px;
}
.detail {
  color: #222;
}

body {
  font-family: Arial, sans-serif;
  background-color: #f4f4f9;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  margin: 0;
}

.login-card {
  background: white;
  padding: 30px;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  margin: 60px 0;
}

.form-group {
  margin-bottom: 15px;
}

.form-group label {
  display: block;
  margin-bottom: 5px;
  font-weight: bold;
}

.form-group input {
  width: 100%;
  padding: 8px 10px;
  box-sizing: border-box;
  border: 1px solid #ccc;
  border-radius: 4px;
}

button {
  width: 100%;
  padding: 10px;  
  background-color: rgba(19, 114, 190, 0.8);
  color: white;
  border: none;
  border-radius: 4px;
  font-size: 16px;
  cursor: pointer;
}

button:hover {
  background-color: #0052a3;
}

.alert {
  margin-top: 15px;
  padding: 10px;
  background-color: #ffe6e6;
  color: #d9534f;
  border: 1px solid #f5c6cb;
  border-radius: 4px;
  text-align: center;
}