/* k-Fold Gift Exchange Generator — widget styles (light/dark aware via
   html[data-theme], matching the site's al-folio theme toggling). */

.ge-app,
details {
  --ge-border: #cfd4da;
  --ge-panel-bg: rgba(127, 127, 127, 0.06);
  --ge-text: inherit;
  --ge-accent: #0f8a3a;
  --ge-amber: #b8860b;
}
html[data-theme="dark"] .ge-app,
html[data-theme="dark"] details {
  --ge-border: #4a525e;
  --ge-panel-bg: rgba(255, 255, 255, 0.06);
  --ge-accent: #3fd07a;
  --ge-amber: #e6b800;
}

/* Collapsible "{% details %}" sections on the project page. The tag emits a
   bare <details><summary>, so render the summary as a large full-width
   button: bold, bordered, with a rotating chevron. */
details { margin: 16px 0; }
details > summary {
  display: flex;
  align-items: center;
  gap: 10px;
  list-style: none;
  cursor: pointer;
  font-size: 1.3em;
  font-weight: 700;
  line-height: 1.3;
  padding: 12px 16px;
  border: 1px solid var(--ge-border);
  border-radius: 10px;
  background: var(--ge-panel-bg);
  user-select: none;
  transition: border-color 0.2s ease, background 0.2s ease;
}
details > summary::-webkit-details-marker { display: none; }
details > summary::before {
  content: "\25B8"; /* ▸ */
  display: inline-block;
  font-size: 0.85em;
  transition: transform 0.2s ease;
}
details[open] > summary::before { transform: rotate(90deg); }
/* Breathing room between the open button and its body text. */
details[open] > summary { margin-bottom: 16px; }
details > summary:hover,
details > summary:focus-visible { border-color: var(--ge-accent); }
details > summary:focus-visible { outline: 2px solid var(--ge-accent); outline-offset: 2px; }

.ge-panel {
  border: 1px solid var(--ge-border);
  border-radius: 10px;
  background: var(--ge-panel-bg);
  padding: 12px;
  margin-top: 12px;
}

/* Mode select lives at the very top: it decides how participants are entered. */
.ge-mode-bar { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; }

/* Single add box + semicolon hint */
.ge-add-bar { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 4px; }
.ge-add-bar .ge-name-input { flex: 1 1 260px; }

/* Participant list: display text with Edit / Delete; editing reveals the
   name input. In double-blind mode the public key is shown as plain text and
   a "Generate Keys" button appears until a key exists. */
#ge-name-list:empty::before {
  content: "No participants yet.";
  opacity: 0.6;
  display: block;
  padding: 4px 0;
}
.ge-name-row { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin-bottom: 6px; }
.ge-name-text { flex: 1 1 160px; font-weight: 600; }
.ge-name-row .ge-name-input { flex: 1 1 160px; display: none; }
.ge-name-row.ge-editing .ge-name-input { display: inline-block; }
.ge-name-row.ge-editing .ge-name-text { display: none; }
.ge-name-row.ge-invalid .ge-name-text { color: #d9534f; }
.ge-name-input.ge-invalid { outline: 2px solid #d9534f; }
.ge-name-row .ge-pub-text { display: none; flex: 1 1 220px; min-width: 160px; word-break: break-all; }
.ge-name-row.ge-secure .ge-pub-text {
  display: inline-block;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.82em;
}
.ge-pub-text.ge-pub-missing { font-family: inherit; font-size: 0.9em; opacity: 0.7; }
.ge-pub-text.ge-pub-generated { color: var(--ge-amber); }
.ge-pub-text.ge-invalid { color: #d9534f; outline: 2px solid #d9534f; }
.ge-name-row .ge-genkeys { display: none; }
.ge-name-row.ge-secure .ge-genkeys { display: inline-block; }
.ge-name-row.ge-has-key .ge-genkeys { display: none; }

/* Footnote-size disclaimer at the end of the cryptography section */
.ge-disclaimer { font-size: 0.8em; opacity: 0.8; }

.ge-btn {
  border: 1px solid var(--ge-border);
  border-radius: 8px;
  background: transparent;
  color: inherit;
  padding: 6px 12px;
  cursor: pointer;
  font: inherit;
}
.ge-btn:hover { border-color: var(--ge-accent); }
.ge-btn-primary { border-width: 2px; font-weight: 600; }
.ge-btn-small { padding: 2px 9px; line-height: 1.2; }
.ge-btn:disabled { opacity: 0.4; cursor: not-allowed; }

.ge-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 12px;
}
.ge-controls input[type="range"] { flex: 1 1 160px; min-width: 120px; }
.ge-visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}

.ge-error { color: #d9534f; min-height: 1.2em; margin: 8px 0 0; }
.ge-status { font-size: 0.9em; opacity: 0.8; }

#ge-copy-fallback { width: 100%; box-sizing: border-box; margin-bottom: 8px; }

/* Secret-mode message + key blocks */
.ge-block { margin: 12px 0; }
.ge-block-head { display: flex; align-items: center; gap: 10px; }
.ge-block-head h4 { margin: 0; }
.ge-hint { font-size: 0.88em; opacity: 0.8; margin: 4px 0 6px; }
.ge-code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.85em;
  width: 100%;
  box-sizing: border-box;
  resize: vertical;
  word-break: break-all;
}
.ge-code-line { display: flex; align-items: center; gap: 8px; margin: 4px 0; }
.ge-code-line .ge-code { width: auto; flex: 1 1 auto; overflow-wrap: anywhere; }

/* Per-person key list */
.ge-key-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 6px 0;
  border-top: 1px solid var(--ge-border);
}
.ge-key-row:first-child { border-top: none; }
.ge-key-name { font-weight: 600; min-width: 120px; }
.ge-key-token {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.85em;
  flex: 1 1 220px;
  word-break: break-all;
}

/* Top-of-page link to the standalone decrypt page */
.ge-toplink {
  display: inline-block;
  margin: 4px 0 10px;
  padding: 6px 12px;
  border: 1px solid #cfd4da;
  border-radius: 8px;
  font-weight: 600;
}
.ge-toplink a { text-decoration: none; }
html[data-theme="dark"] .ge-toplink { border-color: #4a525e; }

/* Participant reveal panel */
#ge-reveal-app label { display: block; margin-top: 8px; font-weight: 600; }
#ge-reveal-message { min-height: 4.5em; margin-top: 4px; }
#ge-reveal-key { margin-top: 4px; }
#ge-reveal-go { margin-top: 10px; }
#ge-reveal-out { margin-top: 10px; }
.ge-reveal-result { font-size: 1.05em; }
.ge-reveal-result strong { color: var(--ge-accent); }

/* Diagram table */
.ge-diagrams { margin: 0 auto; border-spacing: 0; width: auto; }
table.ge-diagrams td {
  text-align: center;
  vertical-align: middle;
  padding: 12px;
  /* the theme's global `table:not(.table) td` rule draws a divider above each
     cell; suppress it here — these cells hold the SVG diagrams only. */
  border-top: none;
}
.ge-diagrams img { display: inline-block; }

/* Public-mode table */
.ge-table { border-collapse: collapse; margin-top: 6px; width: 100%; max-width: 640px; }
.ge-table th, .ge-table td { border: 1px solid var(--ge-border); padding: 6px 10px; text-align: left; }
.ge-table th { font-weight: 600; }

/* Adjacency-matrix algorithm walkthrough. Sizing is scoped under
   #ge-viz-matrix so it beats the site's global `table:not(.table)`
   rules; the table therefore renders at its final size on first paint
   and does not resize when the JS rebuilds it. */
#ge-viz-matrix { position: relative; }
#ge-viz-status { margin-top: 12px; }
#ge-viz-matrix .ge-mtx {
  width: auto;
  border-collapse: collapse;
  margin: 8px auto;
  table-layout: fixed;
}
#ge-viz-matrix .ge-mtx th, #ge-viz-matrix .ge-mtx td {
  border: 1px solid var(--ge-border);
  width: 72px; height: 34px;
  min-width: 72px;
  max-width: 72px;
  text-align: center;
  font-variant-numeric: tabular-nums;
  padding: 0 4px;
  box-sizing: border-box;
  overflow: hidden;
  white-space: nowrap;
}
#ge-viz-matrix .ge-mtx th { font-weight: 600; }
#ge-viz-matrix .ge-mtx .ge-mtx-corner,
#ge-viz-matrix .ge-mtx .ge-mtx-row { width: 96px; min-width: 96px; max-width: 96px; }
#ge-viz-matrix .ge-mtx .ge-mtx-corner { white-space: normal; font-size: 0.78em; line-height: 1.15; }
.ge-mtx-row.ge-mtx-active { background: var(--ge-accent); color: #fff; }
.ge-mtx td { background: transparent; color: inherit; transition: background 0.25s ease, box-shadow 0.25s ease; }
.ge-mtx .ge-mtx-allowed { background: rgba(15, 138, 58, 0.35); box-shadow: inset 0 0 0 2px var(--ge-accent); }
html[data-theme="dark"] .ge-mtx .ge-mtx-allowed { background: rgba(63, 208, 122, 0.25); }
.ge-mtx .ge-mtx-banned { background: rgba(217, 83, 79, 0.35); color: inherit; }
html[data-theme="dark"] .ge-mtx .ge-mtx-banned { background: rgba(217, 83, 79, 0.28); }
.ge-mtx .ge-mtx-donor { background: rgba(230, 162, 27, 0.45); box-shadow: inset 0 0 0 2px #e6a21b; }
.ge-mtx .ge-mtx-target { background: rgba(23, 162, 184, 0.35); box-shadow: inset 0 0 0 2px #17a2b8; }
.ge-mtx .ge-mtx-resolved { background: rgba(15, 138, 58, 0.5); box-shadow: inset 0 0 0 2px var(--ge-accent); }
html[data-theme="dark"] .ge-mtx .ge-mtx-resolved { background: rgba(63, 208, 122, 0.35); }
#ge-viz-matrix { position: relative; }
.ge-mtx-arrow { position: absolute; top: 0; left: 0; pointer-events: none; overflow: visible; }
.ge-mtx-arrow line, .ge-mtx-arrow polygon { stroke: #e6a21b; stroke-width: 3; fill: #e6a21b; animation: ge-arrow-in 0.25s ease; }
@keyframes ge-arrow-in { from { opacity: 0; } to { opacity: 1; } }
.ge-viz-controls { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
.ge-viz-controls select {
  background: #f2f3f5;
  color: inherit;
  border-radius: 8px;
}
html[data-theme="dark"] .ge-viz-controls select {
  background: #3a3f47;
  color: #fff;
}
.ge-viz-reset { margin-left: auto; }
.ge-viz-legend { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; margin-top: 8px; font-size: 0.85em; }
.ge-viz-legend .swatch { display: inline-block; width: 14px; height: 14px; border: 1px solid var(--ge-border); vertical-align: -2px; margin-right: 4px; }
.ge-viz-legend .sw-allowed { background: rgba(15, 138, 58, 0.35); box-shadow: inset 0 0 0 2px var(--ge-accent); }
html[data-theme="dark"] .ge-viz-legend .sw-allowed { background: rgba(63, 208, 122, 0.25); }
.ge-viz-legend .sw-banned { background: rgba(217, 83, 79, 0.35); }
.ge-viz-legend .sw-donor { background: rgba(230, 162, 27, 0.45); box-shadow: inset 0 0 0 2px #e6a21b; }
.ge-viz-legend .sw-target { background: rgba(23, 162, 184, 0.35); box-shadow: inset 0 0 0 2px #17a2b8; }