/*
 * The glass content panel with its corner brackets, the main column and the footer that shows
 * the version. Used by the home page and inside the dialog, which reuses the panel.
 * Colours, fonts and spacing come from the custom properties in tokens.css; this file
 * never writes a colour value (StyleRulesTests). More in
 * docs/ADR-010-the-palette-borrowed-from-theyard.md.
 */

/* #region page */
main {
  flex: 1;
  width: min(960px, 100% - var(--space-8));
  margin: var(--space-7) auto;
}

.panel {
  position: relative;
  background: var(--color-surface);
  border: var(--panel-border);
  border-top: var(--rule-panel);
  border-radius: var(--radius-glass);
  box-shadow: var(--shadow-md);
  padding: var(--space-6);
}

/* The home card holds a few short paragraphs, so it keeps a reading width and sits centred
   instead of stretching across the page with its right side empty. */
main .panel {
  max-width: 44rem;
  margin-inline: auto;
}

/* Corner brackets drawn with the ::before and ::after pseudo-elements: one sits on the thick
   top line at the top left corner, the other on the border at the bottom right corner. */
.panel::before,
.panel::after {
  content: '';
  position: absolute;
  width: var(--bracket-size);
  height: var(--bracket-size);
  border-color: var(--rule-panel-color);
  border-style: solid;
  pointer-events: none;
}

.panel::before {
  left: -1px;
  top: calc(-1 * var(--rule-width));
  border-width: var(--rule-width) 0 0 var(--bracket-stroke);
  border-top-left-radius: var(--radius-glass);
}

.panel::after {
  right: -1px;
  bottom: -1px;
  border-width: 0 var(--bracket-stroke) var(--bracket-stroke) 0;
  border-bottom-right-radius: var(--radius-glass);
}

.panel h2 {
  font-size: var(--text-2xl);
  padding-bottom: var(--space-2);
  border-bottom: var(--rule-width) solid var(--color-gold);
  border-image: var(--gradient-gold) 1;
  display: inline-block;
}

.panel p {
  max-width: 64ch;
}

.site-footer {
  text-align: center;
  color: var(--color-text-muted);
  font-size: var(--text-xs);
  padding: var(--space-4);
}
/* #endregion page */