/* ============================================================
   Selfie Human Bingo — photo-booth strip aesthetic
   Palette
     --ink        #1b1815  backdrop, corkboard
     --ink-soft   #26221d  panel / card back
     --paper      #faf5ea  polaroid card stock
     --accent     #2f8f5b  captured / go (green, kept per house style)
     --accent-ink #10331f  accent text-on-accent
     --coral      #ef6a4c  camera / action pop
     --sky        #4f7fb3  third badge colour (B I N G O chips)
     --muted      #a89f92  secondary text on dark
     --muted-2    #6b6459  secondary text on paper
   Type
     display  "Permanent Marker"  — BINGO letters, headline, captions
     body     "Work Sans"         — UI copy, buttons, task labels
     mono     "IBM Plex Mono"     — counters, timestamps, stamp text
   Layout
     Single dark "photo booth" world (deliberately one theme): a corkboard
     backdrop holds a 5x5 grid of tilted polaroid cards; a sticky marker-
     board header up top and a film-strip action bar pinned to the bottom.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Permanent+Marker&family=Work+Sans:wght@400;500;600;700;800&family=IBM+Plex+Mono:wght@500;600&display=swap');

:root {
  --ink: #1b1815;
  --ink-soft: #26221d;
  --ink-softer: #322c25;
  --paper: #faf5ea;
  --paper-dim: #efe7d8;
  --accent: #2f8f5b;
  --accent-deep: #1f6b42;
  --accent-ink: #0e2e1c;
  --coral: #ef6a4c;
  --coral-deep: #c94d32;
  --sky: #4f7fb3;
  --gold-banned: none; /* reminder: never use gold */
  --muted: #a89f92;
  --muted-2: #6b6459;
  --line: rgba(250, 245, 234, 0.12);
  --shadow: 0 18px 40px -18px rgba(0, 0, 0, 0.65);
  color-scheme: dark;
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
}

body {
  margin: 0;
  padding-inline: 16px;
  background: var(--ink);
  background-image:
    radial-gradient(ellipse 900px 500px at 15% -10%, rgba(239, 106, 76, 0.10), transparent 60%),
    radial-gradient(ellipse 700px 500px at 100% 0%, rgba(79, 127, 179, 0.10), transparent 55%),
    repeating-linear-gradient(0deg, rgba(255,255,255,0.015) 0px, rgba(255,255,255,0.015) 1px, transparent 1px, transparent 3px);
  color: var(--paper);
  font-family: "Work Sans", -apple-system, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
  min-height: 100%;
}

.wrap {
  max-width: 760px;
  margin: 0 auto;
  padding-bottom: 128px;
}

/* ---------- header ---------- */

header.board-header {
  position: sticky;
  top: env(safe-area-inset-top, 0px);
  z-index: 20;
  padding-block: 14px 10px;
  background: linear-gradient(180deg, var(--ink) 78%, rgba(27,24,21,0));
  margin-inline: -16px;
  padding-inline: 16px;
}

.header-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.brand .kicker {
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--coral);
}

#eventTitle {
  font-family: "Permanent Marker", cursive;
  font-size: clamp(22px, 6vw, 30px);
  line-height: 1.15;
  color: var(--paper);
  background: transparent;
  border: none;
  border-bottom: 2px dashed var(--line);
  padding: 2px 0 4px;
  width: 100%;
  max-width: 420px;
  outline: none;
  transition: border-color 0.15s ease;
}

#eventTitle:focus { border-bottom-color: var(--coral); }
#eventTitle::placeholder { color: var(--muted); opacity: 0.7; }

.progress-chip {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--ink-soft);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 14px 8px 10px;
  flex-shrink: 0;
}

.progress-ring {
  width: 30px;
  height: 30px;
  flex-shrink: 0;
}

.progress-ring circle { transition: stroke-dashoffset 0.4s ease; }

.progress-text {
  font-family: "IBM Plex Mono", monospace;
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  font-weight: 600;
  color: var(--paper);
  white-space: nowrap;
}

.progress-text small {
  color: var(--muted);
  font-weight: 500;
}

.subline {
  margin-top: 6px;
  font-size: 13px;
  color: var(--muted);
  max-width: 46ch;
}

.persona-hint {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 10px;
  padding: 6px 12px 6px 10px;
  border-radius: 999px;
  background: var(--ink-soft);
  border: 1px solid var(--line);
  font-family: "IBM Plex Mono", monospace;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.persona-hint::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--persona-color, var(--accent));
  flex-shrink: 0;
}

.header-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 4px;
}

.persona-hint:not([hidden]) { margin-top: 0; }

.size-picker {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--ink-soft);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px;
  margin-left: auto;
}

.size-picker-label {
  font-family: "IBM Plex Mono", monospace;
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  padding-left: 8px;
}

.size-btn {
  font-family: "Work Sans", sans-serif;
  font-size: 12.5px;
  font-weight: 700;
  color: var(--muted);
  background: transparent;
  border: none;
  border-radius: 999px;
  padding: 6px 11px;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}

.size-btn:hover { color: var(--paper); }

.size-btn.active {
  background: var(--accent);
  color: var(--accent-ink);
}

/* ---------- bingo letters ---------- */

.letters[hidden] { display: none; }

.letters {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 10px;
  margin: 14px 0 12px;
}

.letters span {
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 1;
  font-family: "Permanent Marker", cursive;
  font-size: clamp(20px, 5.5vw, 30px);
  color: var(--ink);
  border-radius: 14px;
  transform: rotate(var(--tilt, 0deg));
  box-shadow: var(--shadow);
}

.letters span:nth-child(1) { background: var(--coral); --tilt: -4deg; }
.letters span:nth-child(2) { background: var(--sky); color: var(--paper); --tilt: 3deg; }
.letters span:nth-child(3) { background: var(--accent); --tilt: -3deg; }
.letters span:nth-child(4) { background: var(--sky); color: var(--paper); --tilt: 4deg; }
.letters span:nth-child(5) { background: var(--coral); --tilt: -2deg; }

/* ---------- grid of polaroids ---------- */

.board {
  display: grid;
  grid-template-columns: repeat(var(--cols, 5), 1fr);
  gap: 10px;
}

@media (max-width: 480px) {
  .board { gap: 7px; }
  .letters { gap: 7px; }
}

.cell {
  position: relative;
  background: var(--paper);
  border-radius: 8px;
  padding: 6px 6px 8px;
  box-shadow: var(--shadow);
  transform: rotate(var(--tilt, 0deg));
  cursor: pointer;
  border: none;
  font: inherit;
  text-align: left;
  color: inherit;
  display: flex;
  flex-direction: column;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

/* --tilt is set inline per cell in JS so it works for any column count */

.cell:hover,
.cell:focus-visible {
  transform: rotate(0deg) scale(1.035);
  z-index: 5;
  outline: none;
}

.cell:focus-visible { box-shadow: var(--shadow), 0 0 0 3px var(--coral); }

.cell-photo {
  position: relative;
  aspect-ratio: 1;
  border-radius: 4px;
  overflow: hidden;
  background: var(--ink-softer);
  display: flex;
  align-items: center;
  justify-content: center;
}

.cell-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.cell-photo svg { width: 34%; height: 34%; color: var(--muted); }

.cell.done .cell-photo svg { display: none; }

.cell-caption {
  margin-top: 6px;
  font-size: clamp(9px, 2.6vw, 11px);
  font-weight: 600;
  line-height: 1.25;
  color: var(--ink);
  min-height: 2.5em;
  display: flex;
  align-items: center;
}

.cell.free .cell-caption { color: var(--accent-deep); }
.cell.free .cell-photo { background: var(--accent); }
.cell.free .cell-photo svg { color: var(--accent-ink); }

.check-badge {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--paper);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: scale(0.5);
  transition: transform 0.25s cubic-bezier(.34,1.56,.64,1), opacity 0.2s ease;
}

.cell.done .check-badge { opacity: 1; transform: scale(1); }
.check-badge svg { width: 11px; height: 11px; stroke: var(--paper); }

.cell-retake {
  position: absolute;
  bottom: 4px;
  right: 4px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(27,24,21,0.65);
  backdrop-filter: blur(2px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.15s ease;
}

.cell.done .cell-retake { opacity: 1; }
.cell-retake svg { width: 12px; height: 12px; stroke: var(--paper); }

/* ---------- footer ---------- */

.site-footer {
  margin-top: 26px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
}

.disclaimer {
  margin: 0;
  max-width: 52ch;
  font-size: 11.5px;
  line-height: 1.5;
  color: var(--muted);
}

.disclaimer strong {
  color: var(--paper);
  font-weight: 700;
}

.share-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.share-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.share-label {
  font-family: "Work Sans", sans-serif;
  font-size: 12.5px;
  font-weight: 700;
  color: var(--paper);
}

.share-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--ink-soft);
  border: 1px solid var(--line);
  color: var(--paper);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: border-color 0.15s ease, transform 0.12s ease, color 0.15s ease;
}

.share-btn svg { width: 17px; height: 17px; }
.share-btn:hover { border-color: var(--coral); color: var(--coral); }
.share-btn:active { transform: scale(0.94); }
.share-btn:disabled { opacity: 0.5; cursor: progress; }

.credit {
  margin: 0;
  font-family: "Permanent Marker", cursive;
  font-size: 15px;
  color: var(--muted);
}

/* ---------- action bar ---------- */

.action-bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 30;
  display: flex;
  justify-content: center;
  padding: 12px 16px calc(12px + env(safe-area-inset-bottom, 0px));
  background: linear-gradient(0deg, var(--ink) 60%, rgba(27,24,21,0));
}

.action-bar-inner {
  width: 100%;
  max-width: 760px;
  display: flex;
  gap: 10px;
  align-items: stretch;
}

.btn {
  font-family: "Work Sans", sans-serif;
  font-weight: 700;
  font-size: 14px;
  border-radius: 12px;
  border: none;
  padding: 13px 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: transform 0.12s ease, filter 0.12s ease;
}

.btn:active { transform: scale(0.97); }
.btn svg { width: 17px; height: 17px; flex-shrink: 0; }

.btn-save {
  flex: 1;
  background: var(--coral);
  color: var(--paper);
  box-shadow: 0 10px 26px -10px rgba(239, 106, 76, 0.55);
}

.btn-save:hover { filter: brightness(1.06); }
.btn-save:disabled { opacity: 0.45; cursor: not-allowed; box-shadow: none; }

.btn-reset {
  background: var(--ink-soft);
  color: var(--muted);
  border: 1px solid var(--line);
  width: 48px;
  flex-shrink: 0;
}

.btn-reset:hover { color: var(--paper); border-color: var(--muted); }

/* ---------- toast ---------- */

.toast {
  position: fixed;
  left: 50%;
  bottom: calc(96px + env(safe-area-inset-bottom, 0px));
  transform: translate(-50%, 12px);
  background: var(--paper);
  color: var(--ink);
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: 10px 16px;
  border-radius: 10px;
  box-shadow: var(--shadow);
  z-index: 40;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease;
  max-width: min(90vw, 420px);
  text-align: center;
}

.toast.show {
  opacity: 1;
  transform: translate(-50%, 0);
}

/* ---------- rules banner ---------- */

.rules-banner {
  margin: 2px 0 14px;
  background: var(--ink-soft);
  border: 1px solid var(--coral-deep);
  border-radius: 12px;
  padding: 12px 14px;
  display: flex;
  align-items: flex-start;
  gap: 11px;
}

.rules-banner svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  margin-top: 1px;
  color: var(--coral);
}

.rules-banner p {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.45;
  color: var(--muted);
}

.rules-banner strong {
  color: var(--paper);
}

/* ---------- win banner ---------- */

.win-banner {
  margin: 4px 0 14px;
  background: var(--accent);
  color: var(--accent-ink);
  border-radius: 12px;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow);
  opacity: 0;
  max-height: 0;
  overflow: hidden;
  transition: opacity 0.3s ease, max-height 0.3s ease, margin 0.3s ease, padding 0.3s ease;
}

.win-banner.show { opacity: 1; max-height: 120px; }
.win-banner svg { width: 26px; height: 26px; flex-shrink: 0; }
.win-banner strong { font-family: "Permanent Marker", cursive; font-size: 18px; display: block; }
.win-banner p { margin: 2px 0 0; font-size: 12.5px; opacity: 0.85; }

/* ---------- confetti canvas ---------- */

#confetti {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 50;
}

/* ---------- offscreen export canvas (never shown) ---------- */

#exportCanvas { display: none; }

@media (prefers-reduced-motion: reduce) {
  * { transition-duration: 0.001ms !important; animation-duration: 0.001ms !important; }
}