@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@400;500;700&display=swap');

:root {
  --primary: #4A90E2;
  --bg: #F5F7FA;
  --card: #FFFFFF;
  --text: #333333;
  --radius: 8px;
  --font: 'Roboto', sans-serif;
}

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

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  margin: 0;
}

.wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  gap: 1rem;
}

h1 {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
}

.container {
  background: var(--card);
  padding: 2rem;
  border-radius: var(--radius);
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  max-width: 750px;
  width: 100%;
  margin-bottom: 10rem;
  position: relative;
}

#output {
  display: flex;
  align-items: center;
  margin-bottom: 1.5rem;
}

#output-password {
  flex: 1;
  background: #ECEEEF;
  padding: 1.9rem;
  border-radius: var(--radius);
  font-size: 1.6rem;
  text-align: center;
  user-select: all;
  color: var(--text);
}

#output-btns {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-left: 1rem;
}

button {
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  font-weight: 500;
  cursor: pointer;
}

button:hover {
  background: #357ABD;
}

/* Customization */
#customization {
  margin-top: 1rem;
}

#checkboxes {
  display: grid;
  grid-template-columns: auto auto;
  gap: 1rem;
  margin-bottom: 1.4rem;
}

.checkbox {
  display: flex;
  align-items: center;
  font-size: 1.3rem;
  gap: 0.5rem;
}

input[type="checkbox"] {
  width: 1.2rem;
  height: 1.2rem;
  accent-color: var(--primary);
}

#length {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.3rem;
}

input[type="number"] {
  width: 4rem;
  padding: 0.5rem;
  border: 1px solid #CCC;
  border-radius: var(--radius);
  font-size: 1rem;
}

input[type="range"] {
  flex: 1;
  cursor: pointer;
}

#strength-meter {
  height: 10px;
  background-color: #ddd;
  border-radius: var(--radius);
  overflow: hidden;
  margin-top: 1.4rem;
}

#strength-bar {
  height: 100%;
  width: 0%;
  transition: width 0.3s ease;
}

#strength-text{
  text-align: center;
  margin-top: 1rem;
  font-size: 1.3rem;
}

.strength-label {
  font-weight: bold;
}


/* Responsive tweaks */
@media (max-width: 500px) {
  #output {
    flex-direction: column;
  }
  #output-btns {
    flex-direction: row;
    margin-top: 1rem;
  }
}