:root {
  --bg: #f7f8fa; --card: #fff; --fg: #18181b; --muted: #71717a;
  --border: #e4e4e7; --accent: #6366f1; --accent-soft: #eef2ff;
  --danger: #dc2626; --success: #16a34a; --code-bg: #f3f4f6;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0a0a0f; --card: #14141a; --fg: #e4e4e7; --muted: #9ca3af;
    --border: #27272a; --accent: #818cf8; --accent-soft: #1e1b4b;
    --danger: #f87171; --success: #34d399; --code-bg: #1c1c24;
  }
}
*, *::before, *::after { box-sizing: border-box; }
html, body {
  margin: 0; padding: 0; background: var(--bg); color: var(--fg);
  font: 15px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 960px; margin: 0 auto; padding: 2rem 1.25rem 4rem; }

.top {
  display: flex; align-items: center; justify-content: space-between;
  margin: 0 0 2rem; padding: 0 0 1rem;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap; gap: 0.75rem;
}
.brand { font-size: 1.3rem; font-weight: 700; letter-spacing: -0.01em; }
.brand .dot { color: var(--accent); margin: 0 0.1em; }
.top-actions { display: flex; gap: 0.5rem; }

button, .btn {
  font: inherit; font-size: 0.88rem; font-weight: 500;
  padding: 0.5rem 0.95rem;
  background: var(--card); color: var(--fg);
  border: 1px solid var(--border); border-radius: 8px;
  cursor: pointer; transition: all 0.1s;
}
button:hover, .btn:hover { border-color: var(--accent); color: var(--accent); }
button.primary, .btn.primary { background: var(--accent); color: #fff; border-color: var(--accent); }
button.primary:hover { filter: brightness(0.92); color: #fff; border-color: var(--accent); }
button:disabled { opacity: 0.5; cursor: not-allowed; }

.card {
  background: var(--card); border: 1px solid var(--border); border-radius: 12px;
  padding: 1.25rem 1.5rem; margin: 0 0 1.25rem;
}
.card h2 {
  font-size: 0.78rem; font-weight: 650; margin: 0 0 0.75rem;
  text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted);
}

.kv {
  display: grid; grid-template-columns: minmax(8rem, 11rem) 1fr auto;
  gap: 0.5rem 1rem; align-items: center;
  padding: 0.5rem 0; border-bottom: 1px dashed var(--border);
}
.kv-actions { display: inline-flex; gap: 0.35rem; align-items: center; }
.kv:last-child { border-bottom: none; }
.kv-label { font-size: 0.85rem; color: var(--muted); }
.kv-val {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, monospace;
  font-size: 0.85rem; word-break: break-all; overflow-wrap: anywhere; min-width: 0;
}
.kv-val.secret { -webkit-text-security: disc; text-security: disc; cursor: pointer; }
.kv-val.secret.shown { -webkit-text-security: none; text-security: none; }

/* Small buttons used inside rows (edit / copy / save / cancel). All
 * share the same base look — accent-soft pill on transparent border.
 * Modifier classes only change color for strong intent (primary save,
 * copied-done feedback). */
.btn-sm {
  font-size: 0.75rem; padding: 0.25rem 0.6rem; border-radius: 6px;
  background: var(--accent-soft); color: var(--accent);
  border: 1px solid transparent;
  cursor: pointer; font-family: inherit; font-weight: 500;
  transition: all 0.12s;
}
.btn-sm:hover { filter: brightness(1.08); }
.btn-sm:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-sm.primary { background: var(--accent); color: #fff; }
.btn-sm.primary:hover { filter: brightness(1.08); }
.btn-sm.copy.done { background: var(--success); color: #fff; }

.box { max-width: 380px; margin: 5rem auto 0; }
.box h1 { font-size: 1.5rem; margin: 0 0 0.5rem; letter-spacing: -0.01em; }
.box .hint { color: var(--muted); font-size: 0.9rem; margin: 0 0 1.5rem; }
.box form input[type=password] {
  display: block; width: 100%; font: inherit; font-size: 1rem;
  padding: 0.7rem 0.85rem;
  background: var(--card); color: var(--fg);
  border: 1px solid var(--border); border-radius: 8px;
  margin: 0 0 0.75rem; transition: border-color 0.1s;
}
.box form input[type=password]:focus { outline: none; border-color: var(--accent); }
.box form button { width: 100%; padding: 0.7rem; }

.err { color: var(--danger); font-size: 0.85rem; min-height: 1.2em; margin: 0.25rem 0 0.5rem; }

.modal-bg {
  position: fixed; inset: 0; background: rgba(0,0,0,0.6); backdrop-filter: blur(4px);
  display: none; align-items: center; justify-content: center;
  z-index: 100; padding: 1rem;
}
.modal-bg.on { display: flex; }
.modal {
  background: var(--card); border: 1px solid var(--border); border-radius: 12px;
  padding: 1.5rem; max-width: 420px; width: 100%;
}
.modal h2 {
  margin: 0 0 1rem; font-size: 1.1rem;
  text-transform: none; letter-spacing: 0; color: var(--fg); font-weight: 650;
}
.modal input[type=password] {
  display: block; width: 100%; font: inherit; padding: 0.6rem 0.8rem; margin: 0 0 0.6rem;
  background: var(--bg); color: var(--fg); border: 1px solid var(--border); border-radius: 6px;
}
.modal input[type=password]:focus { outline: none; border-color: var(--accent); }
.modal-actions { display: flex; gap: 0.5rem; justify-content: flex-end; margin-top: 0.75rem; }

/* Card head — title + collapse button on the same line. */
.card-head {
  display: flex; align-items: center; justify-content: space-between;
  margin: 0 0 0.25rem;
}
.card-head h2 { margin: 0; }

/* Collapse toggle button (xray per-node card). Animate chevron rotation. */
.collapse-toggle .chev {
  display: inline-block; width: 0.7em;
  transform: rotate(0deg); transition: transform 0.12s;
}
.collapse-toggle[aria-expanded="true"] .chev { transform: rotate(90deg); }
.collapse-toggle .count { font-variant-numeric: tabular-nums; }

/* Collapsible panel below the card-head — hidden by default. Keep
 * overflow:hidden in both states so the native scrollbar never appears
 * mid-animation. max-height is generous enough (2000px) to never clip
 * realistic node lists; if it ever does, raise it before adding auto. */
.collapse-panel {
  overflow: hidden; max-height: 0;
  transition: max-height 0.2s ease;
}
.collapse-panel.open {
  max-height: 2000px;
  padding-top: 0.5rem; margin-top: 0.5rem;
  border-top: 1px dashed var(--border);
}

footer {
  margin-top: 3rem; padding: 1.5rem 0 0;
  border-top: 1px solid var(--border);
  text-align: center; color: var(--muted); font-size: 0.8rem;
}

@media (max-width: 560px) {
  .kv { grid-template-columns: 1fr auto; }
  .kv-label { grid-column: 1 / -1; padding-bottom: 0.1rem; }
  .kv-val { grid-column: 1 / 2; }
  .copy { grid-column: 2 / 3; grid-row: 2 / 3; }
}