/*
 * Shared widget chrome.
 *
 * Colours are CSS custom properties so a theme change is a `data-theme`
 * attribute swap, not a reload — Element pushes `theme_change` at runtime
 * (docs/03-gotchas.md §13). Values approximate Element's Compound design
 * tokens so widgets look native in the right panel.
 */

:root {
  --hub-bg: #ffffff;
  --hub-bg-subtle: #f4f6fa;
  --hub-fg: #1b1d22;
  --hub-fg-muted: #737d8c;
  --hub-border: #e3e8f0;
  --hub-accent: #0dbd8b;
  --hub-danger: #d51928;
  --hub-radius: 8px;
  --hub-gap: 12px;
  --hub-font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
}

[data-theme="dark"] {
  --hub-bg: #16191e;
  --hub-bg-subtle: #21262c;
  --hub-fg: #edf3ff;
  --hub-fg-muted: #a9b2bc;
  --hub-border: #34383d;
  --hub-accent: #0bc491;
  --hub-danger: #ff5b55;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  height: 100%;
}

body.hub {
  font-family: var(--hub-font);
  font-size: 14px;
  line-height: 1.45;
  color: var(--hub-fg);
  background: var(--hub-bg);
  /* The right panel is ~320-400px wide; never assume more. */
  overflow-x: hidden;
}

.hub-root {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  padding: var(--hub-gap);
  gap: var(--hub-gap);
}

/* ---- boot / status panels ---------------------------------------------- */

.hub-boot {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--hub-gap);
  flex: 1;
  color: var(--hub-fg-muted);
}

.hub-spinner {
  width: 22px;
  height: 22px;
  border: 2px solid var(--hub-border);
  border-top-color: var(--hub-accent);
  border-radius: 50%;
  animation: hub-spin 0.8s linear infinite;
}

@keyframes hub-spin {
  to {
    transform: rotate(360deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  .hub-spinner {
    animation: none;
  }
}

.hub-panel {
  border: 1px solid var(--hub-border);
  border-radius: var(--hub-radius);
  background: var(--hub-bg-subtle);
  padding: var(--hub-gap);
}

.hub-panel--error {
  border-color: var(--hub-danger);
}

.hub-panel__title {
  margin: 0 0 4px;
  font-size: 14px;
  font-weight: 600;
}

.hub-panel__body {
  margin: 0;
  color: var(--hub-fg-muted);
}

/* ---- generic controls --------------------------------------------------- */

.hub-btn {
  font: inherit;
  color: var(--hub-fg);
  background: var(--hub-bg-subtle);
  border: 1px solid var(--hub-border);
  border-radius: var(--hub-radius);
  padding: 6px 12px;
  cursor: pointer;
  min-height: 32px;
}

.hub-btn:hover:not(:disabled) {
  border-color: var(--hub-accent);
}

.hub-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.hub-btn--primary {
  background: var(--hub-accent);
  border-color: var(--hub-accent);
  color: #fff;
}

.hub-kv {
  display: grid;
  grid-template-columns: minmax(0, 8em) 1fr;
  gap: 4px 8px;
  margin: 0;
  word-break: break-word;
}

.hub-kv dt {
  color: var(--hub-fg-muted);
}

.hub-kv dd {
  margin: 0;
  font-variant-numeric: tabular-nums;
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.9em;
  background: var(--hub-bg-subtle);
  border-radius: 4px;
  padding: 1px 4px;
}

/* ---- catalogue ---------------------------------------------------------- */

.hub-catalogue {
  max-width: 820px;
  margin: 0 auto;
  padding: 24px 16px 48px;
}

.hub-card {
  border: 1px solid var(--hub-border);
  border-radius: var(--hub-radius);
  padding: 16px;
  margin-bottom: 16px;
}

.hub-card h2 {
  margin: 0 0 4px;
  font-size: 16px;
}

.hub-card__desc {
  margin: 0 0 12px;
  color: var(--hub-fg-muted);
}

.hub-install {
  display: flex;
  gap: 8px;
  align-items: center;
}

.hub-install code {
  flex: 1;
  overflow-x: auto;
  white-space: nowrap;
  padding: 8px;
}

.hub-caps {
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.hub-caps li {
  font-size: 11px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  color: var(--hub-fg-muted);
  border: 1px solid var(--hub-border);
  border-radius: 999px;
  padding: 2px 8px;
}

.hub-steps {
  margin: 8px 0 0;
  padding-left: 20px;
  color: var(--hub-fg-muted);
}

.hub-steps li {
  margin-bottom: 6px;
}

.hub-steps strong {
  color: var(--hub-fg);
}

.hub-card__caps-label {
  margin: 12px 0 0;
  font-size: 12px;
}

.hub-pre {
  white-space: pre-wrap;
  word-break: break-word;
  font-size: 11px;
  margin: 6px 0 0;
  color: var(--hub-fg-muted);
}

.hub-panel details summary {
  cursor: pointer;
  color: var(--hub-fg-muted);
  font-size: 12px;
  margin-top: 8px;
}