/* Crossword Workbench, skinned to match the xwords archive viewer
   (utils/xwords_webpage.html): a #333 page in the browser's default serif,
   navy rounded widgets, #99f links, a white Arial grid with dimgray lines,
   and yellow highlights with black text for the active word. */

:root {
  --cell: 36px;
  --bg: #333;
  --ink: #fff;
  --muted: #bbb;
  --widget-bg: #114;
  --widget-ink: #eef;
  --widget-line: #667;
  --link: #99f;
  --hilite: #ff0;
  --hilite-ink: #000;
  --grid-line: dimgray;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-size: 16px;
}

a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }

header {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  padding: 10px 16px 0;
}
header h1 { font-size: 18px; margin: 0; }

.toolbar { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.toolbar label { color: var(--muted); }
.toolbar input[type="number"] {
  width: 60px;
  font: inherit;
  color: var(--widget-ink);
  background-color: var(--widget-bg);
  border: 1px solid var(--widget-line);
  border-radius: 5px;
  padding: 2px 2px 2px 5px;
}
.toolbar input[type="checkbox"] { accent-color: var(--link); }
.sep { width: 1px; height: 22px; background: var(--grid-line); }

button {
  font: inherit;
  padding: 3px 10px;
  color: var(--widget-ink);
  background-color: var(--widget-bg);
  border: 1px solid var(--widget-line);
  border-radius: 5px;
  cursor: pointer;
}
button:hover { border-color: var(--link); }

.mode-toggle { display: inline-flex; }
.mode-toggle .mode-btn:first-child { border-radius: 5px 0 0 5px; }
.mode-toggle .mode-btn:last-child { border-radius: 0 5px 5px 0; margin-left: -1px; }
.mode-btn.active {
  background: var(--hilite);
  border-color: var(--hilite);
  color: var(--hilite-ink);
}

main {
  display: flex;
  gap: 20px;
  padding: 16px;
  align-items: flex-start;
  flex-wrap: wrap;
}

/* Grid: white Arial cells on dimgray lines, black border, like the SVG board */

.grid-pane { flex: 0 0 auto; }

.grid {
  display: grid;
  border: 3px solid #000;
  background: var(--grid-line);
  gap: 1px;
  width: max-content;
  outline: none;
  font-family: arial, sans-serif;
  user-select: none;
}

.cell {
  width: var(--cell);
  height: var(--cell);
  background: #fff;
  color: #000;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  user-select: none;
}
.cell.block { background: #000; }
.cell.in-slot { background: var(--hilite); }
.cell.cursor { background: var(--hilite); box-shadow: inset 0 0 0 2px #000; }
.cell .num {
  position: absolute; top: 1px; left: 2px;
  font-size: calc(var(--cell) * 0.3); color: #000;
}
.cell .letter {
  font-size: calc(var(--cell) * 0.6);
  margin-top: 5px;
}

.grid-status {
  margin-top: 8px;
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 13px;
  min-height: 18px;
}

/* Clues: bold hanging numbers, yellow highlight on the active entry */

.clues-pane { flex: 1 1 380px; display: flex; gap: 20px; min-width: 320px; }
.clue-col { flex: 1 1 0; min-width: 150px; }
.clue-col h2, .hint-pane h2 {
  font-size: inherit; font-weight: normal;
  margin: 0 0 4px;
}
.clue-list { display: flex; flex-direction: column; gap: 2px; max-height: 72vh; overflow-y: auto; }
.clue-entry { display: flex; align-items: baseline; gap: 6px; padding: 1px 4px; cursor: pointer; }
.clue-entry.active { background: var(--hilite); color: var(--hilite-ink); }
.clue-num { min-width: 1.5em; text-align: right; font-weight: bold; font-variant-numeric: tabular-nums; }
.clue-text {
  flex: 1;
  font: inherit;
  color: var(--ink);
  border: none;
  border-bottom: 1px solid #555;
  background: transparent;
  padding: 1px 4px;
  min-width: 60px;
}
.clue-text::placeholder { color: #999; }
.clue-text:focus { outline: none; border-bottom-color: var(--link); }
.clue-entry.active .clue-text { color: var(--hilite-ink); border-bottom-color: #886; }
.clue-entry.active .clue-text::placeholder { color: #665; }

/* Hints */

.hint-pane {
  flex: 0 0 300px;
  border: 1px solid var(--grid-line);
  border-radius: 5px;
  padding: 12px;
}
.hint-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.hint-head h2 { margin: 0; }
.hint-status { color: var(--muted); font-size: 13px; min-height: 18px; margin-bottom: 8px; }
.hint-list { display: flex; flex-direction: column; gap: 8px; max-height: 68vh; overflow-y: auto; }
.hint { border: 1px solid var(--grid-line); border-radius: 5px; padding: 6px 8px; cursor: pointer; }
.hint:hover { border-color: var(--link); }
.hint-answer { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; }
.hint-word {
  font-family: arial, sans-serif;
  font-weight: bold; letter-spacing: 0.08em;
}
.hint-meta { color: var(--muted); font-size: 12px; white-space: nowrap; }
.bar { height: 4px; background: #555; border-radius: 2px; margin: 5px 0; }
.bar-fill { height: 100%; background: var(--link); border-radius: 2px; }
.hint-example {
  color: var(--muted); font-size: 12px; font-style: italic;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.hint-links { margin-top: 3px; font-size: 12px; }
.hint-history {
  margin-top: 5px; padding-top: 5px;
  border-top: 1px dashed #555;
  font-size: 12px; color: var(--muted); cursor: default;
}

.spinner {
  display: inline-block;
  width: 12px; height: 12px;
  border: 2px solid #555;
  border-top-color: var(--link);
  border-radius: 50%;
  vertical-align: -2px;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }