body {
  margin: 0;
  padding: 0;
  background: #f7f8fa;
  min-height: 100vh;
  font-family: 'Segoe UI', Arial, sans-serif;
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-container {
  background: #fff;
  padding: 2.8rem 2rem 2rem 2rem;
  border-radius: 2rem;
  box-shadow: 0 8px 32px rgba(80,80,120,0.10), 0 1.5px 7px rgba(0,0,0,0.05);
  max-width: 350px;
  width: 100%;
}

.login-container h2 {
  margin: 0 0 1.5rem 0;
  text-align: center;
  font-weight: 600;
  color: #25265e;
  letter-spacing: 1px;
  font-size: 2rem;
}

.input-group {
  margin-bottom: 1.4rem;
}

.input-group label {   
  display: block;
  font-size: 1rem;
  margin-bottom: .5rem;
  color: #333;
}

.input-group input {
  width: calc(100% - 30px);
  padding: .9rem .9rem;
  border: 1.5px solid #e4e6ef;
  border-radius: 1rem;
  font-size: 1rem;
  transition: border-color .2s;
  background: #f8fafd;
  color: #20223a;
}

.input-group input:focus {
  border-color: rgb(14, 54, 142);
  outline: none;
}

button[type="submit"] {
  width: 100%;
  padding: 1rem;
  background: #2563eb;
  color: #fff;
  font-weight: 600;
  font-size: 1.15rem;
  border: none;
  border-radius: 1rem;
  cursor: pointer;
  transition: background .2s;
  margin-top: .4rem;
}

button[type="submit"]:hover {
  background: rgb(55, 48, 185);
}

.error-msg {
  color: #e74c3c;
  margin-top: 1rem;
  text-align: center;
  min-height: 24px;
  font-size: 0.97rem;
}