/* Shared unlayered site styles take priority. This fallback keeps the tool
   usable if the main site's theme is unavailable. */
@layer fallback {
  :root { color-scheme: dark; --border: #4b5868; --surface-deep: #19212b; --surface: #2d3744; --surface-hover: #374554; --text: #f3f5f7; --muted: #b7c3d0; --accent: #3ff8c0; --success: #3ff8c0; --warning: #ffcb70; --danger: #ffb4b4; --font-mono: ui-monospace, monospace; --radius: .6rem; }
  * { box-sizing: border-box; }
  body { margin: 0; background: #202630; color: var(--text); font: 1rem/1.6 system-ui, sans-serif; }
  .shell { max-width: 1100px; margin-inline: auto; padding: 1.25rem; }
  a { color: var(--accent); }
  .header-inner, .site-brand, .site-nav, .actions { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem; }
  .header-inner { justify-content: space-between; }
  .site-brand { text-decoration: none; font-weight: 700; }
  .site-header, .footer { background: var(--surface-deep); }
  .site-nav { font-size: .85rem; }
  .site-nav a { color: var(--text); }
  h1 { font-size: clamp(2rem, 5vw, 3rem); line-height: 1.2; margin: .5rem 0; }
  .tool-heading { margin-bottom: 2rem; }
  .tool-heading p, .tool-note { color: var(--muted); }
  .eyebrow { text-transform: uppercase; letter-spacing: .12em; font-size: .8rem; }
  .nd-panel { border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }
  button { border: 1px solid var(--accent); border-radius: var(--radius); padding: .85rem 1.2rem; background: var(--accent); color: #112a24; font: inherit; font-weight: 700; cursor: pointer; }
  .secondary { background: transparent; color: var(--accent); }
  input[type="range"] { width: 100%; accent-color: var(--accent); }
  .footer-columns { display: flex; flex-wrap: wrap; gap: 4rem; }
  .footer h2 { font-size: 1rem; }
  .footer-list { list-style: none; padding: 0; }
  .skip-link { position: absolute; left: -9999px; }
  .skip-link:focus { position: static; }
  .sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
}
button:disabled { opacity: .5; cursor: not-allowed; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }
.password-app .generator { padding: 0; overflow: hidden; margin-bottom: 1.5rem; }
.password-app .tabs { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .5rem; padding: .5rem; border-bottom: 1px solid var(--border); background: var(--surface-deep); }
.password-app .tab { border-color: transparent; color: var(--muted); background: transparent; }
.password-app .tab:hover { color: var(--text); background: var(--surface-hover); }
.password-app .tab.active { border-color: var(--accent); color: var(--accent); background: var(--surface); }
.password-app .result { padding: clamp(1rem, 3vw, 1.75rem); border-bottom: 1px solid var(--border); }
.password-app #secret { display: block; min-height: 5rem; overflow-wrap: anywhere; font: 700 clamp(1.35rem, 4vw, 2.25rem)/1.4 var(--font-mono); user-select: all; }
.password-app .actions { margin-top: 1.25rem; }
.password-app #status { min-height: 1.5em; margin: 1rem 0 0; color: var(--success); font-size: .875rem; }
.password-app #status.error { color: var(--danger); }
.password-app .strength { display: grid; grid-template-columns: 1fr auto; gap: .75rem 1rem; padding: 1.25rem clamp(1rem, 3vw, 1.75rem); border-bottom: 1px solid var(--border); }
.password-app .strength > div:first-child { display: flex; flex-wrap: wrap; justify-content: space-between; gap: .5rem; grid-column: 1 / -1; color: var(--muted); font-size: .875rem; }
.password-app .strength strong { color: var(--text); }
.password-app .meter { align-self: center; height: .5rem; overflow: hidden; border-radius: var(--radius); background: var(--surface-deep); }
.password-app .meter i { display: block; width: 0; height: 100%; background: var(--accent); }
.password-app .strength code { color: var(--muted); font: .875rem var(--font-mono); }
.password-app .controls { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.25rem; padding: clamp(1rem, 3vw, 1.75rem); }
.password-app .controls > label { margin: 0; }
.password-app .controls > label:not(.check) { display: grid; gap: .5rem; }
.password-app .wide { grid-column: 1 / -1; }
.password-app .range > span { display: flex; justify-content: space-between; gap: 1rem; }
.password-app .range output { color: var(--accent); font-family: var(--font-mono); }
.password-app .check { display: flex; align-items: flex-start; gap: .75rem; min-height: 4.5rem; padding: 1rem; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface-deep); cursor: pointer; }
.password-app .check:hover { border-color: var(--accent); }
.password-app .check input { margin: .2rem 0 0; }
.password-app .check strong, .password-app .check small { display: block; }
.password-app .check small { margin-top: .25rem; color: var(--muted); font-size: .875rem; font-weight: 400; overflow-wrap: anywhere; }
@media (max-width: 620px) {
  .password-app .controls, .password-app .strength { grid-template-columns: minmax(0, 1fr); }
  .password-app .strength code { text-align: right; }
  .password-app .actions > button { flex: 1; }
}