* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(135deg, #1e3c72, #2a5298);
  color: #fff;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 40px 20px;
}

form {
  background: rgba(255, 255, 255, 0.1);
  padding: 25px 30px;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  width: 100%;
  max-width: 400px;
  margin-bottom: 30px;
  display: flex;
  flex-direction: column;
  gap: 15px;
}

form img {
  max-width: 100px;
  margin: 0 auto 10px;
}

input[type="text"],
input[type="password"] {
  padding: 12px;
  border: none;
  border-radius: 6px;
  font-size: 16px;
  outline: none;
}

input::placeholder {
  color: #999;
}

button {
  padding: 12px;
  background: #4caf50;
  border: none;
  border-radius: 6px;
  color: #fff;
  font-size: 16px;
  cursor: pointer;
  transition: background 0.3s ease;
}

button:hover {
  background: #45a049;
}


.box-visible {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
}

h1#welcome {
  font-size: 2.5rem;
  margin-bottom: 20px;
}

a {
  color: #f1f1f1;
  background: #e91e63;
  padding: 10px 15px;
  border-radius: 6px;
  text-decoration: none;
  font-weight: bold;
  transition: background 0.3s ease;
  margin-bottom: 30px;
}

a:hover {
  background: #c2185b;
}


#userList {
  list-style: none;
  padding: 0;
  width: 100%;
  max-width: 500px;
}

#userList li {
  background: rgba(255, 255, 255, 0.1);
  margin-bottom: 10px;
  padding: 15px;
  border-radius: 8px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

#userList li strong {
  font-size: 16px;
}

#userList li button {
  background: #2196f3;
  padding: 8px 12px;
  font-size: 14px;
  margin-left: 10px;
  border-radius: 5px;
}

#userList li button:hover {
  background: #1976d2;
}


#userList li button:last-child {
  background: #f44336;
}

#userList li button:last-child:hover {
  background: #d32f2f;
}


@media (max-width: 500px) {
  form {
    padding: 20px;
  }

  h1#welcome {
    font-size: 2rem;
  }

  #userList li {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  #userList li button {
    margin-left: 0;
  }
}