* {
  box-sizing: border-box;
}

body {
  font-family: 'Inter', sans-serif;
  background: linear-gradient(135deg, #f8d9e8, #d9eaf8);
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.container {
  background-color: #fff;
  border-radius: 20px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  padding: 40px;
  max-width: 420px;
  width: 100%;
  text-align: center;
}

h2 {
  margin-bottom: 20px;
  color: #333;
}

input, select, button {
  width: 100%;
  padding: 12px;
  border-radius: 10px;
  margin-top: 10px;
  font-size: 16px;
  border: 1px solid #ccc;
}

button {
  background-color: #7c3aed;
  color: white;
  border: none;
  cursor: pointer;
  font-weight: bold;
  transition: background 0.3s ease;
  margin-top: 15px;
}

button:hover {
  background-color: #5b21b6;
}

label {
  display: block;
  margin-top: 15px;
  font-size: 14px;
  text-align: left;
}

#generated-password {
  font-size: 18px;
  margin-top: 20px;
  font-weight: bold;
  color: #2f855a;
  word-wrap: break-word;
}

#strength-output {
  margin-top: 10px;
  font-weight: 600;
}

.divider {
  margin: 25px 0;
  border: 0;
  height: 1px;
  background: #ccc;
  opacity: 0.6;
}

.section {
  margin-bottom: 30px;
}

.pw-visibility-group {
  position: relative;
  display: flex;
  align-items: center;
}

.pw-visibility-group input[type="password"],
.pw-visibility-group input[type="text"] {
  flex: 1;
  margin-right: 5px;
}

.pw-visibility-group button {
  width: 40px;
  padding: 0;
  font-size: 20px;
  margin-top: 0;
  background: none;
  color: #7c3aed;
  border: none;
  transition: background 0.2s;
}

.pw-visibility-group button:hover {
  background: #f8f9fa;
  color: #5b21b6;
}

#generated-password-group {
  margin-top: 12px;
}

.toast {
  visibility: hidden;
  min-width: 140px;
  margin-left: -70px;
  background-color: #323232;
  color: #fff;
  text-align: center;
  border-radius: 5px;
  padding: 10px;
  position: fixed;
  z-index: 5;
  left: 50%;
  bottom: 40px;
  font-size: 15px;
  transition: visibility 0s, opacity 0.4s ease;
  opacity: 0;
  pointer-events: none;
}

.toast.show {
  visibility: visible;
  opacity: 1;
}

.security-tip {
  margin-top: 20px;
  color: #b76f00;
  text-align: center;
}

@media (max-width: 550px) {
  .container {
    padding: 16px;
    max-width: 95vw;
  }
  input, select, button {
    font-size: 15px;
  }
}