:root {
  --bg: #1f2937;
  --card-bg: #273549;
  --text: #ffffff;
  --muted: #9ca3af;
  --accent: #4adf86;
  --password-bg: #314155;
}

[data-theme="light"] {
  --bg: #ecfdf5;
  --card-bg: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --password-bg: #e5e7eb;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  margin: 0;
}

.card {
  background: var(--card-bg);
  padding: 2rem;
  border-radius: 0.5rem;
  text-align: center;
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
  width: 320px;
}

  h1 {

  font-weight: 800;
  font-size: 1.5rem;
  margin: 0 0 0.5rem;
}

h1 span {
  color: var(--accent);
  display: block;
}

.tagline {
  color: var(--muted);
  margin-bottom: 1rem;
}

.controls {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 1rem;
}

.control {
  display: flex;
  flex-direction: column;
  align-items: center;
  font-size: 0.875rem;
}

.control input[type="number"] {
  width: 4rem;
  padding: 0.25rem;
  margin-top: 0.25rem;
}

.generate {
  background: var(--accent);
  color: var(--bg);
  border: none;
  padding: 0.75rem 1rem;
  border-radius: 0.5rem;
  font-weight: 600;
  cursor: pointer;
}

.passwords {
  display: flex;
  gap: 0.5rem;
  margin-top: 1rem;
}

.password-field {
  background: var(--password-bg);
  color: var(--accent);
  border: none;
  border-radius: 0.5rem;
  padding: 0.75rem 0.5rem;
  min-width: 140px;
  font-family: monospace;
  font-size: 0.9rem;
  cursor: pointer;
}

.theme-toggle {
  margin-top: 1rem;
  background: none;
  border: 1px solid var(--accent);
  color: var(--accent);
  padding: 0.5rem 0.75rem;
  border-radius: 0.5rem;
  cursor: pointer;
}
.password-field.copied {
  background: var(--accent);
  color: var(--bg);
}