* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Segoe UI', sans-serif;
}
.button-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 10px;
}
body {
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  background: linear-gradient(-45deg, #1f2937, #0f172a, #0ea5e9, #f97316);
  background-size: 400% 400%;
  animation: bgMove 12s ease infinite;
}

@keyframes bgMove {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.wrapper {
  width: 100%;
  display: flex;
  justify-content: center;
}

.login-card {
  width: 320px;
  padding: 30px;
  border-radius: 20px;
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(18px);
  box-shadow: 0 10px 40px rgba(0,0,0,0.35);
  color: #f8fafc;
  text-align: center;
}

.login-card h2 {
  margin-bottom: 25px;
  letter-spacing: 1px;
}

.input-group {
  position: relative;
  margin-bottom: 22px;
}

.input-group input {
  width: 100%;
  padding: 10px 5px;
  border: none;
  border-bottom: 2px solid rgba(248,250,252,0.5);
  background: transparent;
  color: #f8fafc;
  font-size: 16px;
  outline: none;
  transition: 0.3s;
}

.input-group label {
  position: absolute;
  left: 5px;
  top: 10px;
  color: rgba(248,250,252,0.7);
  pointer-events: none;
  transition: 0.3s;
}

.input-group input:focus + label,
.input-group input:valid + label {
  top: -12px;
  font-size: 12px;
  color: #f8fafc;
}

.input-group input:focus {
  border-color: #f97316;
}

.options {
  text-align: right;
  margin-bottom: 20px;
}

.options a {
  color: #cbd5e1;
  font-size: 13px;
  text-decoration: none;
  transition: 0.3s;
}

.options a:hover {
  color: #ffffff;
  text-decoration: underline;
}

button {
  width: 100%;
  padding: 10px;
  border: none;
  border-radius: 25px;
  background: linear-gradient(135deg, #0ea5e9, #f97316);
  color: #fff;
  font-size: 16px;
  cursor: pointer;
  transition: 0.3s;
}

button:hover {
  transform: scale(1.06);
  box-shadow:
    0 0 10px #0ea5e9,
    0 0 25px #f97316;
}

button, input, a {
  transition: all 0.3s ease;
}

@media (max-width: 400px) {
  .login-card {
    width: 90%;
  }
}