/* ONSITE Bingo: quiet controls, a stack of cards, and an ink-saving print layout. */
:root {
  --ink: #142c49;
  --muted: #5c6e83;
  --accent: #3664c7;
  --wash: #e4eaf3;
  --canvas: #f3f5f8;
  --line: #dce3eb;
  --gold: #deb66b;
  --paper: #fff;
  --display: "Arial Rounded MT Bold", "Trebuchet MS", "PingFang SC", sans-serif;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--paper);
  font-synthesis: none;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; }
button, input, textarea, select { font: inherit; color: inherit; }
button, select, summary { cursor: pointer; }
button:disabled { cursor: default; opacity: .4; }
a { color: inherit; }
[hidden] { display: none !important; }
button:focus-visible, a:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible, summary:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
h1, h2, h3 { margin: 0; }
.site-header {
  max-width: 1200px;
  margin: auto;
  padding: 22px 36px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand { display: flex; gap: 10px; align-items: center; text-decoration: none; font-weight: 750; font-size: 18px; }
.brand img { width: 32px; height: 32px; }
.brand small { display: block; color: var(--muted); font-size: 9px; font-weight: 650; letter-spacing: .16em; margin-top: 2px; }
.header-actions { display: flex; gap: 28px; align-items: center; }
.how-link { font-size: 13px; text-decoration: none; }
.how-link:hover { color: var(--accent); }
.language { margin: 0; }
.language select { width: auto; border: 0; background: var(--canvas); border-radius: 20px; padding: 8px 12px; font-size: 12px; }
main { max-width: 1200px; margin: 0 auto; padding: 30px 36px 70px; }
.intro { margin: 0 0 32px; }
.eyebrow { margin: 0 0 13px; color: var(--accent); font-size: 11px; font-weight: 700; letter-spacing: .09em; }
.intro h1 { font-family: var(--display); font-size: clamp(32px, 4.5vw, 54px); font-weight: 800; line-height: 1.15; letter-spacing: -.045em; }
.intro > p:last-child { color: var(--muted); font-size: 14px; line-height: 1.8; max-width: 600px; margin: 14px 0 0; }
.workspace { display: grid; grid-template-columns: minmax(300px, .8fr) minmax(0, 1.2fr); gap: 44px; align-items: start; }
.editor { padding: 26px; background: var(--canvas); border-radius: 20px; }
.step-heading { display: flex; gap: 9px; align-items: center; margin: 0 0 24px; }
.step-heading h2 { font-size: 15px; font-weight: 700; }
.editor { scroll-margin-top: 20px; }
.examples { margin: 0 0 23px; }
.examples > span { display: block; color: var(--muted); font-size: 11px; margin-bottom: 9px; }
.example-options { display: flex; gap: 8px; }
.examples button { flex: 1; border: 1px solid var(--line); background: var(--paper); color: var(--muted); border-radius: 8px; padding: 9px 10px; font-size: 12px; font-weight: 600; }
.examples button:hover { border-color: var(--accent); color: var(--accent); }
.examples button[aria-pressed="true"] { color: var(--ink); border-color: var(--ink); background: var(--paper); box-shadow: inset 0 0 0 .5px var(--ink); }
label { display: block; font-size: 12px; font-weight: 650; margin-bottom: 8px; }
input:not([type=checkbox]), textarea, select { width: 100%; min-width: 0; border: 1px solid var(--line); border-radius: 8px; background: var(--paper); padding: 11px 12px; font-size: 13px; }
input:not([type=checkbox]):hover, textarea:hover, select:hover { border-color: #abb9cb; }
input#title { margin-bottom: 22px; }
.word-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; }
#word-count { color: var(--muted); font-size: 10px; font-variant-numeric: tabular-nums; }
textarea { min-height: 166px; line-height: 1.8; resize: vertical; margin-bottom: 20px; }
.hint { color: var(--muted); font-size: 11px; line-height: 1.6; margin: 0 0 9px; }
#word-help { font-size: 10px; margin-bottom: 9px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 14px; }
.check { display: flex; align-items: center; gap: 8px; font-size: 12px; font-weight: 400; line-height: 1.5; margin: 10px 0; }
.check input { width: 15px; height: 15px; margin: 0; flex-shrink: 0; accent-color: var(--ink); }
.validation { min-height: 18px; color: var(--accent); font-size: 11px; line-height: 1.6; margin: 15px 0 12px; }
.validation.error { color: #a33131; }
.button { display: flex; gap: 9px; justify-content: center; align-items: center; border: 0; width: 100%; min-height: 46px; border-radius: 9px; padding: 12px 15px; font-size: 13px; font-weight: 650; transition: background .15s ease, transform .15s ease; }
.button svg { flex-shrink: 0; }
.button:hover:not(:disabled) { transform: translateY(-1px); }
.generate-button { background: var(--paper); color: var(--ink); border: 1px solid var(--ink); }
.generate-button:hover:not(:disabled) { background: var(--wash); }
.primary { background: var(--ink); color: var(--paper); }
.primary:hover:not(:disabled) { background: #25496d; }
.draft-note { text-align: center; margin: 11px 0 0; font-size: 10px; }
.preview-panel { min-width: 0; }
.edit-link { display: none; }
.preview-panel > .step-heading { margin: 2px 0 20px; }
.batch-label { margin-left: auto; color: var(--muted); font-size: 11px; font-variant-numeric: tabular-nums; }
.preview-stage { display: grid; place-items: center; padding: 36px 48px; border-radius: 24px; background: var(--wash); overflow: hidden; }
.paper-shadow { width: 100%; max-width: 420px; aspect-ratio: 1; position: relative; isolation: isolate; }
.paper-shadow::before, .paper-shadow::after { content: ""; position: absolute; inset: 0; background: var(--paper); border: 1px solid #cbd5e3; border-radius: 15px; z-index: -1; }
.paper-shadow::before { transform: rotate(-5deg); }
.paper-shadow::after { transform: rotate(3deg); }
.preview-stage .bingo-card { position: relative; border: 0; border-radius: 14px; padding: 20px; box-shadow: 0 18px 40px #142c4918; }
.preview-stage .card-head { margin-bottom: 12px; min-height: 22px; }
.preview-stage .card-title { font-size: 13px; max-height: 32px; }
.preview-stage .card-id { font-size: 9px; }
.preview-stage .bingo-banner { font-family: var(--display); font-size: clamp(34px, 4vw, 52px); font-weight: 850; letter-spacing: .19em; background: var(--ink); color: var(--paper); padding: 12px 0 10px .19em; margin-bottom: 12px; border-radius: 9px; }
.preview-stage .bingo-grid { border: 0; gap: 5px; }
.preview-stage .cell { position: relative; background: var(--canvas); border: 0; border-radius: 5px; padding: 4px; }
.preview-stage .cell-text { font-size: 12px; font-weight: 500; }
.preview-stage .free-cell { background: #f7e5bf; color: var(--ink); font-weight: 750; }
.preview-stage .free-cell .cell-text { font-size: 12px; font-weight: 750; }
.preview-stage .free-cell .cell-text::before { content: "✦"; display: block; font-size: 19px; line-height: 1.1; margin-bottom: 2px; }
.pager { display: flex; justify-content: center; align-items: center; gap: 22px; margin: 17px 0 20px; color: var(--muted); font-size: 11px; font-variant-numeric: tabular-nums; }
.pager button { width: 30px; height: 30px; border: 0; border-radius: 50%; background: var(--canvas); color: var(--ink); font-size: 16px; }
.pager button:hover:not(:disabled) { background: var(--wash); }
.print-settings { max-width: 480px; margin: auto; }
.print-settings .field-row { margin-bottom: 10px; }
.print-settings select { background: var(--canvas); border-color: transparent; }
.print-settings .check { margin: 12px 0 16px; font-size: 11px; }
.print-bottom { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin-bottom: 12px; }
.print-bottom .button { width: auto; min-width: 195px; }
#print-summary { margin: 0; font-size: 10px; }
#print-status:empty { display: none; }
.print-settings > .hint { font-size: 10px; }
.how-to { margin-top: 64px; border-top: 1px solid var(--line); padding-top: 34px; }
.how-to h2 { font-family: var(--display); font-size: 25px; letter-spacing: -.025em; scroll-margin-top: 24px; }
.play-steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); list-style: none; gap: 32px; padding: 0; margin: 26px 0 38px; }
.play-steps > li { display: flex; gap: 12px; }
.play-number { color: var(--gold); font: 20px var(--display); line-height: 1.3; }
.play-steps h3 { font-size: 13px; font-weight: 650; margin: 0 0 8px; }
.play-steps p { color: var(--muted); font-size: 12px; line-height: 1.8; margin: 0; }
.faq { max-width: 760px; }
.faq details { border-bottom: 1px solid var(--line); padding: 16px 0; font-size: 12px; }
.faq summary { font-weight: 600; list-style: none; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--muted); font: 19px ui-monospace, monospace; }
.faq details[open] summary::after { content: "−"; }
.faq p { color: var(--muted); line-height: 1.8; margin: 12px 0 0; }
.text-button { border: 0; background: transparent; color: var(--muted); font-size: 11px; padding: 0; margin-top: 18px; text-decoration: underline; text-underline-offset: 3px; }
footer { max-width: 1128px; margin: auto; padding: 22px 0 28px; display: flex; justify-content: space-between; gap: 24px; border-top: 1px solid var(--line); color: var(--muted); font-size: 11px; }
footer a { font-size: 10px; letter-spacing: .03em; text-decoration: none; }
@media (max-width: 1000px) {
  .workspace { gap: 28px; grid-template-columns: minmax(290px, .9fr) minmax(0, 1.1fr); }
  .preview-stage { padding: 32px 28px; }
  .preview-stage .bingo-card { padding: 16px; }
  .print-bottom { gap: 8px; }
  .print-bottom .button { min-width: 160px; }
  footer { margin: 0 36px; }
}
@media (max-width: 760px) {
  .site-header { padding: 20px; }
  .header-actions { gap: 18px; }
  .how-link { font-size: 12px; }
  main { padding: 24px 20px 44px; }
  .intro { margin-bottom: 28px; }
  .intro h1 { font-size: clamp(28px, 7.8vw, 44px); }
  .intro > p:last-child { font-size: 12px; margin-top: 12px; line-height: 1.8; }
  .eyebrow { font-size: 10px; margin-bottom: 12px; }
  .workspace { grid-template-columns: 1fr; gap: 30px; }
  .preview-panel { order: -1; }
  .preview-panel .batch-label { display: none; }
  .edit-link { display: inline; margin-left: auto; color: var(--accent); font-size: 12px; text-decoration: none; }
  .editor { padding: 22px; border-radius: 16px; }
  .step-heading { margin-bottom: 22px; }
  .preview-stage { padding: 30px 25px; border-radius: 18px; }
  .preview-stage .bingo-card { padding: 14px; }
  .preview-stage .bingo-banner { font-size: 36px; padding-top: 10px; padding-bottom: 9px; margin-bottom: 10px; }
  .preview-stage .bingo-grid { gap: 4px; }
  .preview-stage .cell-text { font-size: 10px; }
  .preview-stage .free-cell .cell-text { font-size: 10px; }
  .preview-stage .free-cell .cell-text::before { font-size: 14px; }
  .preview-stage .card-title { font-size: 11px; }
  .preview-stage .card-id { font-size: 8px; }
  .print-bottom .button { min-width: 170px; }
  .how-to { margin-top: 40px; padding-top: 28px; }
  .how-to h2 { font-size: 21px; }
  .play-steps { grid-template-columns: 1fr; gap: 23px; margin: 25px 0 30px; }
  .play-steps h3 { font-size: 13px; }
  footer { margin: 0 20px; font-size: 10px; }
}
@media (max-width: 360px) {
  main { padding-right: 16px; padding-left: 16px; }
  .editor { padding: 18px; }
  .preview-stage { padding: 25px 20px; }
  .preview-stage .bingo-card { padding: 12px; }
  .preview-stage .bingo-banner { font-size: 30px; }
  .print-bottom { flex-direction: column; align-items: stretch; gap: 12px; }
  .print-bottom .button { width: 100%; }
}

/* Shared card anatomy; screen styling is scoped to the preview stage. */
.bingo-card{background:#fff;border:1px solid var(--ink);height:100%;width:100%;display:flex;flex-direction:column;padding:14px;color:var(--ink)}.card-head{display:flex;align-items:center;justify-content:space-between;gap:10px;min-height:28px;margin-bottom:10px}.card-title{font-size:14px;font-weight:700;overflow-wrap:anywhere;line-height:1.25;max-height:35px;overflow:hidden;flex:1}.card-id{font:10px ui-monospace,SFMono-Regular,monospace;color:var(--muted);white-space:nowrap}.bingo-banner{font-weight:850;letter-spacing:.18em;font-size:34px;line-height:1;text-align:center;margin-bottom:14px;padding-left:.18em}.bingo-grid{display:grid;grid-template-columns:repeat(var(--size),minmax(0,1fr));grid-template-rows:repeat(var(--size),minmax(0,1fr));flex:1;min-height:0;border-top:1px solid var(--ink);border-left:1px solid var(--ink)}.cell{display:flex;align-items:center;justify-content:center;text-align:center;border-right:1px solid var(--ink);border-bottom:1px solid var(--ink);min-width:0;min-height:0;padding:4px;overflow:hidden;line-height:1.2}.cell-text{display:block;overflow-wrap:anywhere;word-break:normal;width:100%;max-width:100%;font-size:11px;line-height:1.2}.free-cell{background:#e8effb;font-weight:750;color:var(--accent)}.free-cell .cell-text{font-size:14px}
/* Sheets are laid out at their physical print dimensions before printing. */
#print-pages{position:fixed;left:-10000px;top:0;visibility:hidden;pointer-events:none}.print-sheet{width:190mm;height:276mm;display:grid;gap:6mm;padding:1mm;grid-template-columns:1fr;grid-template-rows:1fr;break-after:page;page-break-after:always}.print-sheet:last-child{break-after:auto;page-break-after:auto}.print-sheet[data-layout="2"]{grid-template-rows:repeat(2,minmax(0,1fr))}.print-sheet[data-layout="4"]{grid-template-columns:repeat(2,minmax(0,1fr));grid-template-rows:repeat(2,minmax(0,1fr))}.print-sheet .bingo-card{width:min(100%,240mm);aspect-ratio:1;height:auto;max-height:100%;justify-self:center;align-self:center;padding:4mm}.print-sheet[data-layout="2"] .bingo-card{width:130mm;height:130mm}.print-sheet[data-layout="4"] .bingo-card{width:100%;height:100%;max-height:132mm}.print-sheet .card-head{min-height:7mm;margin-bottom:3mm}.print-sheet .card-title{font-size:14pt;max-height:14mm}.print-sheet .card-id{font-size:8pt}.print-sheet .bingo-banner{font-size:38pt;margin-bottom:4mm}.print-sheet[data-layout="4"] .bingo-banner{font-size:24pt;margin-bottom:3mm}.print-sheet[data-layout="4"] .card-title{font-size:10pt;max-height:10mm}.print-sheet[data-layout="4"] .card-id{font-size:6pt}.print-sheet[data-layout="4"] .bingo-card{padding:3mm}.print-sheet .cell{padding:1mm}.print-sheet .cell-text{font-size:12pt}.caller-sheet{display:block;padding:7mm;font-size:12pt;color:#000}.caller-sheet h2{font-size:18pt;overflow-wrap:anywhere;margin-bottom:6mm}.caller-sheet p{font-size:10pt;margin:0 0 5mm}.caller-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1mm 8mm;list-style:none;margin:0;padding:0;line-height:1.5}.caller-list li{break-inside:avoid;overflow-wrap:anywhere;margin-bottom:2mm}

@media print{html,body{margin:0!important;padding:0!important;background:#fff!important;width:auto!important}body>*:not(#print-pages):not(#paper-style){display:none!important}#print-pages{position:static;visibility:visible;pointer-events:auto}.print-sheet{margin:0;break-inside:avoid;page-break-inside:avoid}.bingo-card{color:#000;border-color:#000;box-shadow:none}.bingo-grid,.cell{border-color:#000}.free-cell{background:#fff;color:#000}.card-id{color:#444}}

@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; transition: none !important; } }