.pin-card {
  width: 100%;
  max-width: 400px;
  text-align: center;
  padding: 32px 24px;
}

.pin-card h1 {
  margin-bottom: 4px;
}

.pin-card form {
  margin-top: 20px;
}

.pin-boxes {
  display: flex;
  justify-content: center;
  gap: 10px;
}

.pin-boxes input {
  width: 54px;
  height: 64px;
  border: 2px solid var(--line);
  border-radius: 14px;
  background: #fdfcff;
  color: var(--ink);
  font: 600 1.75rem var(--font-head);
  text-align: center;
  caret-color: var(--accent-strong);
  transition: border-color 0.15s, background 0.15s;
}

.pin-boxes input:focus {
  outline: none;
  border-color: var(--accent-strong);
  background: var(--accent-soft);
}

.pin-boxes.shake {
  animation: shake 0.35s;
}

.pin-boxes.shake input {
  border-color: var(--danger);
}

@keyframes shake {
  20%, 60% { transform: translateX(-8px); }
  40%, 80% { transform: translateX(8px); }
}

.pin-card .btn.primary {
  margin-top: 8px;
}

.lock-box {
  margin-top: 20px;
}

.lock-count {
  width: 96px;
  height: 96px;
  margin: 0 auto 12px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--danger-soft);
  color: var(--danger);
  font: 600 2.25rem var(--font-head);
}

@media (max-width: 420px) {
  .pin-card { padding: 28px 16px; }
  .pin-boxes { gap: 6px; }
  .pin-boxes input { width: 48px; height: 58px; }
}

/* ---------- board ---------- */

.board-view {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  background: var(--board-bg, #fff8e7);
  transition: background 0.3s;
}

.board-bar {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  background: rgba(255, 255, 255, 0.55);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(63, 61, 86, 0.06);
}

.board-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font: 600 1rem var(--font-head);
}

.board-bar #updated-at {
  flex: 1;
  text-align: right;
}

.board-actions {
  display: flex;
  gap: 4px;
}

.board {
  flex: 1;
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 24px 64px;
}

.board .ql-editor {
  height: auto;
  overflow: visible;
  padding: 0;
}

.board-empty {
  text-align: center;
  padding: 80px 0;
  font-size: 1.1rem;
}

/* Dark board background */
.board-view.is-dark {
  color: var(--board-ink);
}

.board-view.is-dark .board-bar {
  background: rgba(20, 19, 26, 0.6);
  border-bottom-color: rgba(255, 255, 255, 0.08);
}

.board-view.is-dark .muted {
  color: rgba(244, 241, 250, 0.65);
}

.board-view.is-dark .btn.ghost {
  color: var(--board-ink);
  border-color: rgba(255, 255, 255, 0.15);
}

.board-view.is-dark .btn.ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.3);
}

.board-bar .btn[disabled] .label {
  font-variant-numeric: tabular-nums;
}

@media (max-width: 640px) {
  .board-bar .label { display: none; }
  /* Keep the cooldown countdown visible on phones */
  .board-bar .btn[disabled] .label { display: inline; }
  .board-bar #updated-at { font-size: 0.75rem; }
  .board { padding: 20px 16px 48px; }
}

/* Fullscreen: hide the toolbar for projecting in class; move the mouse to the top edge to bring it back. */
:fullscreen .board-bar {
  opacity: 0;
  transition: opacity 0.2s;
}

:fullscreen .board-bar:hover {
  opacity: 1;
}

/* ---------- print / Save as PDF ---------- */

.print-only {
  display: none;
}

/* PDF is always black text on white, whatever board / text colours are used on screen. */
@media print {
  @page {
    margin: 14mm 16mm;
  }

  html,
  body,
  .board-view {
    background: #fff !important;
  }

  #pin-view,
  .board-bar,
  .toast {
    display: none !important;
  }

  .board-view {
    min-height: 0;
    display: block;
    --board-ink: #000;
  }

  .board-view * {
    color: #000 !important;
  }

  .board {
    max-width: none;
    padding: 0;
  }

  .print-only {
    display: block;
  }

  .print-meta {
    margin: 0 0 8mm;
    padding-bottom: 3mm;
    border-bottom: 1px solid currentColor;
    font: 600 11pt var(--font-head);
    opacity: 0.6;
  }

  .board-text p,
  .board-text li {
    break-inside: avoid;
  }
}