body {
  background: #f2f4f7;
  font-family: Arial, sans-serif;
}

.box {
  width: 340px;
  margin: 80px auto;
  background: white;
  border-radius: 6px;
  padding: 20px;
  box-shadow: 0 0 10px rgba(0,0,0,.1);
}

.logo {
  display: block;
  margin: 0 auto 15px;
  width: 120px;
}

.tabs {
  display: flex;
  margin-bottom: 15px;
}

.tabs button {
  flex: 1;
  padding: 8px;
  border: none;
  background: #e3e5e8;
  cursor: pointer;
}

.tabs .active {
  background: #0074bd;
  color: white;
}

input {
  width: 100%;
  padding: 9px;
  margin-bottom: 10px;
  border: 1px solid #ccc;
}

button {
  width: 100%;
  padding: 9px;
  background: #0074bd;
  color: white;
  border: none;
  cursor: pointer;
}

.hidden {
  display: none;
}

.strength {
  height: 6px;
  background: #ddd;
  margin-bottom: 10px;
}

#strengthBar {
  height: 6px;
  width: 0%;
  background: red;
}