/* Simple modern card style */
:root {
  --bg: #0f1724;
  --card: #0b1220;
  --accent: #7c3aed;
  --muted: #9aa4b2;
  --glass: rgba(255, 255, 255, 0.03);
  --radius: 14px;
  --pad: 20px;
  font-family: Inter, system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  background: #002252;
  color: #e6eef6;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px;
}

.card {
  width: min(720px, 96%);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.01));
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: 0 10px 30px rgba(2, 6, 23, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.03);
}

header {
  display: flex;
  align-items: center;
  gap: 16px;
}

.logo {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), #3b82f6);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

h1 {
  font-size: 20px;
  margin: 0;
}

p.lead {
  margin: 6px 0 18px;
  color: var(--muted);
}

.grid {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 18px;
}

@media (max-width:800px) {
  .grid {
    grid-template-columns: 1fr;
  }
}

/* Left column */
.controls {
  background: var(--glass);
  padding: 18px;
  border-radius: 12px;
}

.row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

label {
  font-size: 13px;
  color: var(--muted);
}

.length-value {
  margin-left: auto;
  font-weight: 600
}

.checkboxes {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.switch {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, 0.02);
  padding: 10px;
  border-radius: 10px;
  width: 100%;
}

input[type=range] {
  width: 100%;
}

/* Right column */
.preview {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: stretch;
}

.password-box {
  background: #071022;
  padding: 18px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.03);
  display: flex;
  gap: 12px;
  align-items: center;
}

.password-text {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, 'Roboto Mono', monospace;
  font-size: 16px;
  word-break: break-all;
}

.btn {
  padding: 10px 14px;
  border-radius: 10px;
  border: 0;
  background: linear-gradient(90deg, var(--accent), #22c1c3);
  color: white;
  font-weight: 600;
  cursor: pointer
}

.btn.secondary {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.06);
  color: var(--muted)
}

.strength {
  height: 10px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.03);
  overflow: hidden
}

.strength>i {
  display: block;
  height: 100%;
  width: 0%;
}

.meta {
  font-size: 13px;
  color: var(--muted)
}

footer {
  margin-top: 16px;
  color: var(--muted);
  font-size: 13px
}

/* tiny helpers */
.small {
  font-size: 13px;
  color: var(--muted)
}