:root {
  --bg: #fafaf9;
  --fg: #1c1917;
  --muted: #78716c;
  --surface: #ffffff;
  --border: #e7e5e4;
  --accent: #0f766e;
  --accent-fg: #ffffff;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1c1917;
    --fg: #f5f5f4;
    --muted: #a8a29e;
    --surface: #292524;
    --border: #44403c;
    --accent: #2dd4bf;
    --accent-fg: #042f2e;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif;
}

main {
  max-width: 40rem;
  margin: 0 auto;
  padding: 3rem 1rem;
}

h1 {
  font-size: 1.25rem;
  margin: 0 0 1.5rem;
}

.muted { color: var(--muted); font-size: 0.875rem; }

.secret {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
  overflow-x: auto;
}

pre {
  margin: 0;
  font: 14px/1.5 ui-monospace, "SF Mono", Menlo, monospace;
  white-space: pre-wrap;
  word-break: break-all;
}

pre.concealed {
  filter: blur(6px);
  user-select: none;
}

.actions {
  display: flex;
  gap: 0.5rem;
  margin: 1rem 0;
}

button {
  font: inherit;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--fg);
  cursor: pointer;
}

button.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-fg);
}

a { color: var(--accent); }