/* ── Professional Puzzle Page - Complete Redesign ── */
[hidden] { display: none !important; }

/* Main Container — wide enough for rails + a large square board. */
.puzzles-page .puzzle-main {
  max-width: none;
  margin: 0 auto;
  padding: 1.5rem 1.5rem 3rem;
  font-size: 1.06rem;
}
body.puzzles-page .page-shell {
  width: min(2200px, calc(100% - 24px));
  max-width: none;
}

/* Page Header — the old hidden "Puzzles" title is replaced by the visible
   .puzzle-page-header row below (slim, product-chrome). */
.puzzle-page-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.25rem 2rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
  padding-bottom: 1.1rem;
  border-bottom: 1px solid var(--line);
}
.puzzle-page-heading {
  min-width: 0;
}
.puzzle-page-eyebrow {
  margin: 0 0 0.3rem;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
}
.puzzle-page-title {
  margin: 0;
  font-size: 1.85rem;
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.1;
  color: var(--text);
}
.puzzle-page-sub {
  margin: 0.4rem 0 0;
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--muted);
}
.puzzle-page-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding-bottom: 0.35rem;
}
.puzzle-page-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--cream-dim);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s ease;
}
.puzzle-page-link:hover,
.puzzle-page-link:focus-visible {
  color: var(--gold-bright);
}
.puzzle-page-link span {
  font-size: 1.05rem;
  line-height: 1;
}

/* Three columns: left rail | square board | right rail.
   Same sizing model as the trainer — board side from viewport, rails fixed,
   layout shrink-wraps with width: max-content so nothing collapses to 0. */
.puzzle-layout {
  --pz-rail-left: 300px;
  --pz-rail-right: 340px;
  --pz-gap: 1.5rem;
  /* Large square from the viewport height. Avoid 100vw math here — the site
     sidebar already sits outside .page-shell, so vw-based caps undersize the board. */
  --pz-board: min(860px, calc(100dvh - 10rem));
  display: grid;
  grid-template-columns: var(--pz-rail-left) var(--pz-board) var(--pz-rail-right);
  column-gap: var(--pz-gap);
  row-gap: 0;
  align-items: start;
  justify-content: center;
  width: max-content;
  max-width: 100%;
  margin-inline: auto;
  position: relative;
}

/* Left rail - unified glass card.
   A single cohesive panel wrapping both stats and leaderboard, matching the
   review page's premium glassmorphism look. The child sections drop their
   individual card styles and become flush sections inside this panel. */
.puzzle-left-panel {
  display: flex;
  flex-direction: column;
  width: 100%;
  height: var(--pz-board);
  max-height: var(--pz-board);
  min-height: 0;
  min-width: 0;
  align-self: start;
  position: relative;
  background: var(--surface-panel);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  box-shadow: var(--panel-glow);
  padding: 1.35rem 1.35rem 1rem;
  overflow: auto;
  box-sizing: border-box;
}
/* Aurora wash - indigo + teal radial glows in the top corners. */
.puzzle-left-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  /* Aurora wash. Theme-token driven (--gold-deep / --gold-bright) so the glow
     always matches the site accent instead of fighting it with a hard-coded
     palette. */
  background:
    radial-gradient(120% 90% at 0% 0%,
      color-mix(in srgb, var(--gold-deep) 13%, transparent) 0%,
      transparent 60%),
    radial-gradient(120% 90% at 100% 0%,
      color-mix(in srgb, var(--gold-bright) 8%, transparent) 0%,
      transparent 55%);
  z-index: 0;
}
/* Glass top-light - a 1px bright edge along the top. */
.puzzle-left-panel::after {
  content: "";
  position: absolute;
  top: 0;
  left: 12px;
  right: 12px;
  height: 1px;
  pointer-events: none;
  background: linear-gradient(90deg,
    transparent,
    color-mix(in srgb, var(--gold-deep) 60%, transparent),
    transparent);
  z-index: 1;
}
/* Keep content above decorative layers. */
.puzzle-left-panel > * {
  position: relative;
  z-index: 2;
}

/* Left Stats Panel - one card, tokens only, so both themes stay correct.
   Bumped ~12% from the base sizes so it reads next to the larger board. */
.puzzle-stats-strip {
  flex-shrink: 0;
  padding: 0 0 1.1rem;
  margin-bottom: 0.85rem;
  border-bottom: 1px solid var(--line);
}
.puzzle-strip-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.85rem;
  padding-bottom: 0.9rem;
  margin-bottom: 1.1rem;
  border-bottom: 1px solid var(--line);
}
.puzzle-strip-eyebrow {
  margin: 0;
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.puzzle-rank-chip {
  flex: 0 0 auto;
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--gold) 38%, var(--line));
  background: color-mix(in srgb, var(--gold) 12%, transparent);
  color: var(--gold-bright);
  font-size: 0.78rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.puzzle-rank-chip--muted {
  border-color: var(--line);
  background: var(--fill-subtle);
  color: var(--muted);
}



/* Stat tiles. The first tile holds the puzzle rating and reads as the rail's
   hero number; the rest stay compact so the leaderboard fits below them. */


/* Rating movement flash (puzzles.js flashRating). */
#puzzle-rating-display.rating-up {
  color: var(--data-up);
  animation: puzzle-rating-pop 0.9s ease;
}
#puzzle-rating-display.rating-down {
  color: var(--data-down);
  animation: puzzle-rating-pop 0.9s ease;
}
@keyframes puzzle-rating-pop {
  from { transform: translateY(5px); }
  to { transform: translateY(0); }
}

/* Board column: square stage + actions underneath in normal flow. */
.puzzle-board-wrap {
  width: var(--pz-board);
  max-width: 100%;
  margin: 0;
  padding: 0;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

/* Perfect square. FX overlay sits outside #puzzle-board so renderBoard()
   never wipes confetti/sparkles. */
.puzzle-board-stage {
  position: relative;
  box-sizing: border-box;
  width: var(--pz-board);
  height: var(--pz-board);
  max-width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: 8px;
  flex: 0 0 auto;
}
.puzzle-board-stage.is-error-rim {
  box-shadow:
    0 0 0 2px color-mix(in srgb, #cf6a6a 70%, transparent),
    0 0 18px color-mix(in srgb, #e88b8b 35%, transparent);
  animation: pz-error-rim 0.55s ease both;
}
.puzzle-board-stage.is-celebrate {
  box-shadow:
    0 0 0 2px color-mix(in srgb, var(--gold-bright, #e8c547) 65%, transparent),
    0 0 22px color-mix(in srgb, var(--gold-deep, #c9a227) 40%, transparent);
  animation: pz-celebrate-rim 1.2s ease both;
}
@keyframes pz-error-rim {
  0% { box-shadow: 0 0 0 0 transparent; }
  35% {
    box-shadow:
      0 0 0 2px color-mix(in srgb, #cf6a6a 70%, transparent),
      0 0 18px color-mix(in srgb, #e88b8b 35%, transparent);
  }
  100% { box-shadow: 0 6px 18px rgba(0, 0, 0, 0.1); }
}
@keyframes pz-celebrate-rim {
  0% { box-shadow: 0 0 0 0 transparent; }
  25% {
    box-shadow:
      0 0 0 3px color-mix(in srgb, var(--gold-bright, #e8c547) 75%, transparent),
      0 0 28px color-mix(in srgb, var(--gold-deep, #c9a227) 45%, transparent);
  }
  100% {
    box-shadow:
      0 0 0 1px color-mix(in srgb, var(--gold-deep) 32%, var(--glass-border)),
      0 6px 18px rgba(0, 0, 0, 0.1);
  }
}

.puzzle-board-fx {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 6;
  overflow: hidden;
  border-radius: 8px;
}

.puzzle-board {
  width: 100%;
  height: 100%;
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  grid-template-rows: repeat(8, 1fr);
  overflow: hidden;
  box-sizing: border-box;
  border: 1px solid color-mix(in srgb, var(--gold-deep) 32%, var(--glass-border));
  border-radius: 8px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.1);
  position: relative;
  -webkit-user-select: none;
  user-select: none;
}

/* User-drawn arrows / square highlights (Chess.com / Lichess-style). */
.puzzle-board .board-user-arrows {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 5;
  overflow: visible;
}

.puzzle-board .board-arrow-fill.arrow-user--green {
  fill: rgba(21, 120, 27, 0.72);
  stroke: rgba(255, 255, 255, 0.22);
  stroke-width: 0.014;
}

.puzzle-board .board-arrow-fill.arrow-user--red {
  fill: rgba(196, 42, 42, 0.78);
  stroke: rgba(255, 255, 255, 0.22);
  stroke-width: 0.014;
}

.puzzle-board .board-arrow-fill.arrow-user--blue {
  fill: rgba(36, 99, 190, 0.78);
  stroke: rgba(255, 255, 255, 0.22);
  stroke-width: 0.014;
}

.puzzle-board .board-arrow-fill.arrow-user--yellow {
  fill: rgba(196, 160, 24, 0.82);
  stroke: rgba(255, 255, 255, 0.22);
  stroke-width: 0.014;
}

.puzzle-board .board-arrow-fill.arrow-user.is-preview {
  opacity: 0.55;
}

.puzzle-board .pz-sq.user-hl::before {
  content: "";
  position: absolute;
  inset: 12%;
  border-radius: 50%;
  pointer-events: none;
  z-index: 2;
  box-shadow: inset 0 0 0 3px currentColor;
  opacity: 0.85;
}

.puzzle-board .pz-sq.user-hl--green { color: rgba(21, 120, 27, 0.9); }
.puzzle-board .pz-sq.user-hl--red { color: rgba(196, 42, 42, 0.92); }
.puzzle-board .pz-sq.user-hl--blue { color: rgba(36, 99, 190, 0.92); }
.puzzle-board .pz-sq.user-hl--yellow { color: rgba(196, 160, 24, 0.95); }

.puzzle-board .pz-sq.user-hl--green::before {
  background: rgba(21, 120, 27, 0.22);
}
.puzzle-board .pz-sq.user-hl--red::before {
  background: rgba(196, 42, 42, 0.22);
}
.puzzle-board .pz-sq.user-hl--blue::before {
  background: rgba(36, 99, 190, 0.22);
}
.puzzle-board .pz-sq.user-hl--yellow::before {
  background: rgba(196, 160, 24, 0.24);
}
.puzzle-board-stage.shake-board {
  animation: pz-board-shake 0.35s cubic-bezier(0.36, 0.07, 0.19, 0.97) both;
}
@keyframes pz-board-shake {
  10%, 90% { transform: translate3d(-2px, 0, 0); }
  20%, 80% { transform: translate3d(3px, 0, 0); }
  30%, 50%, 70% { transform: translate3d(-4px, 0, 0); }
  40%, 60% { transform: translate3d(4px, 0, 0); }
}
.puzzle-board::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at center, transparent 40%, rgba(0, 0, 0, 0.05) 100%);
  pointer-events: none;
  z-index: 0;
}

.puzzle-board .pz-sq {
  min-height: 0;
  font-size: 1rem;
  box-sizing: border-box;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  position: relative;
  /* Only the properties the highlights actually animate, so a move never
     triggers a full-property transition (which reads as lag). */
  transition: background-color 0.18s ease, box-shadow 0.18s ease;
  overflow: visible;
  z-index: 1;
  /* The squares are divs, so the UA draws a focus ring when one is pressed.
     That read as a blue box around the piece mid-drag. The board owns the
     highlight instead (is-selected / is-last-move). */
  outline: none;
  -webkit-tap-highlight-color: transparent;
}
.puzzle-board .pz-sq:focus,
.puzzle-board .pz-sq:focus-visible {
  outline: none;
}
.puzzle-board .pz-sq.light {
  background: linear-gradient(135deg,
    color-mix(in srgb, var(--board-light) 97%, #000),
    color-mix(in srgb, var(--board-light) 93%, #000));
}
.puzzle-board .pz-sq.dark {
  background: linear-gradient(135deg,
    color-mix(in srgb, var(--board-dark) 97%, #fff),
    color-mix(in srgb, var(--board-dark) 93%, #fff));
}

/* ---- Selection. The theme accent --gold is the neon green, so a green wash on
   an 800px board would read as part of the board, not as a user action.
   Selection therefore uses an explicit warm amber — deliberately independent of
   the theme token — and the piece itself lifts so the active piece is
   unmistakable. ---- */
.puzzle-board .pz-sq.is-selected {
  background: linear-gradient(135deg, #f0c674, #e0a84a);
  box-shadow:
    inset 0 0 0 3px rgba(120, 80, 10, 0.55),
    inset 0 0 20px rgba(255, 240, 200, 0.35);
  z-index: 3;
}

/* ---- Legal destinations: a centered dot for a quiet move; a soft full-square
   wash for a capture. Captures used to draw a small floating square over the
   piece (unpositioned ::after) — that artifact is gone. ---- */
.puzzle-board .pz-sq.is-valid-move::after,
.puzzle-board .pz-sq.is-valid-capture::after {
  content: "";
  position: absolute;
  pointer-events: none;
  transition: transform 0.18s ease, opacity 0.18s ease, background-color 0.18s ease;
}
.puzzle-board .pz-sq.is-valid-move::after {
  width: 26%;
  height: 26%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: rgba(20, 83, 45, 0.78);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
  opacity: 0.62;
}
/* Capture: tint the whole square — never a small box sitting on the piece. */
.puzzle-board .pz-sq.is-valid-capture::after {
  inset: 0;
  width: auto;
  height: auto;
  border: none;
  border-radius: 0;
  background: rgba(127, 29, 29, 0.28);
  box-shadow: none;
  opacity: 1;
}
.puzzle-board .pz-sq.is-valid-move:hover::after {
  transform: translate(-50%, -50%) scale(1.18);
  opacity: 1;
}
.puzzle-board .pz-sq.is-valid-capture:hover::after {
  background: rgba(127, 29, 29, 0.38);
}

/* ---- Last move: themed wash on origin + destination (static settle state),
   plus a one-shot landing stack (wash → impact → piece bounce) when
   .is-landing is present. Uses --data-win-fill so light/dark themes follow. ---- */
.puzzle-board .pz-sq.is-last-move.light {
  background: linear-gradient(135deg,
    color-mix(in srgb, var(--data-win-fill, #7ec08a) 30%, var(--board-light)),
    color-mix(in srgb, var(--data-win-fill, #7ec08a) 20%, var(--board-light)));
}
.puzzle-board .pz-sq.is-last-move.dark {
  background: linear-gradient(135deg,
    color-mix(in srgb, var(--data-win-fill, #7ec08a) 28%, var(--board-dark)),
    color-mix(in srgb, var(--data-win-fill, #7ec08a) 18%, var(--board-dark)));
}
.puzzle-board .pz-sq.is-last-move::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  box-shadow: inset 0 0 0 2px color-mix(in srgb, var(--data-win-fill, #7ec08a) 60%, transparent);
  opacity: 0.75;
}
/* The origin square is empty after a capture, so it reads quieter. */
.puzzle-board .pz-sq.is-last-from::after {
  box-shadow: inset 0 0 0 2px color-mix(in srgb, var(--data-win-fill, #7ec08a) 32%, transparent);
  opacity: 0.55;
}

/* One-shot landing: only when puzzles.js tags the ply with .is-landing. */
.puzzle-board .pz-sq.is-landing.is-last-from::after {
  background: color-mix(in srgb, var(--data-win-fill, #7ec08a) 42%, transparent);
  box-shadow: none;
  animation: pz-last-move-wash 0.38s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.puzzle-board .pz-sq.is-landing.is-last-to::after {
  background: color-mix(in srgb, var(--data-win-fill, #7ec08a) 55%, transparent);
  box-shadow: inset 0 0 22px color-mix(in srgb, var(--data-win-fill, #7ec08a) 28%, transparent);
  animation: pz-last-move-impact 0.55s cubic-bezier(0.16, 0.84, 0.32, 1);
}
/* No expanding center ripple (::before) — that drew a small square over the piece. */
.puzzle-board .pz-sq.is-last-to img,
.puzzle-board .pz-sq.is-last-move img {
  position: relative;
  z-index: 4;
}
.puzzle-board .pz-sq.is-landing.is-last-to img.is-new {
  animation: pz-last-move-piece 0.52s cubic-bezier(0.18, 0.9, 0.28, 1);
  transform-origin: center bottom;
  will-change: transform, filter;
}

/* Highlight preference parity with training/review (wash / soft / ring). */
html[data-highlights="ring"] .puzzle-board .pz-sq.is-landing.is-last-from::after {
  background: transparent;
  animation: none;
}
html[data-highlights="ring"] .puzzle-board .pz-sq.is-landing.is-last-to::after {
  background: transparent;
  box-shadow: inset 0 0 0 2px color-mix(in srgb, var(--data-win-fill, #7ec08a) 70%, transparent);
  animation: pz-last-move-ring 0.7s cubic-bezier(0.16, 0.84, 0.32, 1);
}
html[data-highlights="soft"] .puzzle-board .pz-sq.is-landing.is-last-from::after,
html[data-highlights="soft"] .puzzle-board .pz-sq.is-landing.is-last-to::after {
  opacity: 0.72;
}
html[data-highlights="soft"] .puzzle-board .pz-sq.is-landing.is-last-to img.is-new {
  animation: pz-last-move-piece-soft 0.48s cubic-bezier(0.2, 0.85, 0.25, 1);
}

@keyframes pz-last-move-wash {
  0% { opacity: 0; }
  100% { opacity: 1; }
}
@keyframes pz-last-move-impact {
  0% { opacity: 0; }
  45% { opacity: 1; }
  100% { opacity: 1; }
}
@keyframes pz-last-move-ring {
  0% { opacity: 0; }
  55% { opacity: 1; }
  100% { opacity: 1; }
}
@keyframes pz-last-move-piece {
  0% {
    transform: translateY(10%) scale(0.62);
    filter: drop-shadow(0 0 16px color-mix(in srgb, var(--data-win-fill, #7ec08a) 80%, transparent));
  }
  48% {
    transform: translateY(-4%) scale(1.14);
    filter: drop-shadow(0 0 14px color-mix(in srgb, var(--data-win-fill, #7ec08a) 55%, transparent));
  }
  72% { transform: translateY(1%) scale(0.97); }
  100% {
    transform: translateY(0) scale(1);
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
  }
}
@keyframes pz-last-move-piece-soft {
  0% {
    transform: scale(0.82);
    filter: drop-shadow(0 0 8px color-mix(in srgb, var(--data-win-fill, #7ec08a) 40%, transparent));
  }
  60% { transform: scale(1.04); }
  100% {
    transform: scale(1);
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
  }
}

/* Selection always wins over the move highlight. */
.puzzle-board .pz-sq.is-selected.is-last-move.light,
.puzzle-board .pz-sq.is-selected.is-last-move.dark {
  background: linear-gradient(135deg, #f0c674, #e0a84a);
}
.puzzle-board .pz-sq.is-selected.is-last-move::after { display: none; }

@keyframes pulseError {
  0% { box-shadow: 0 0 0 0 rgba(220, 80, 80, 0.5); }
  70% { box-shadow: 0 0 0 10px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}
/* A wrong move flashes the square red. No ring, no circle: the wash alone. */
.puzzle-board .pz-sq.is-error {
  animation: pulseError 0.6s ease;
  background: linear-gradient(135deg, #e88b8b, #cf6a6a);
  z-index: 4;
}

/* The square being dragged onto. Subtle inner glow so the drop target is
   clear without drawing a box around every piece. */
.pz-sq.drag-over {
  box-shadow: inset 0 0 18px rgba(124, 255, 74, 0.18);
  z-index: 10;
  transition: box-shadow 0.15s ease;
}
.pz-sq img {
  width: 80%;
  height: 80%;
  max-width: 90%;
  max-height: 90%;
  object-fit: contain;
  transition: transform 0.2s ease;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
  position: relative;
  z-index: 2;
}
/* The selected piece lifts slightly so the active piece is obvious. */
.pz-sq.is-selected img { transform: scale(1.06); }

.puzzle-board .pz-sq:hover img { transform: scale(1.04); }
.puzzle-board .pz-sq.is-selected:hover img { transform: scale(1.1); }

body.puzzle-dragging { cursor: grabbing; }
body.puzzle-dragging .pz-sq { cursor: grabbing; }

/* ---- Board coordinates: faint file/rank labels on the edge squares. The
   labels sit under the pieces and never take the pointer, so drag-and-drop is
   unaffected; each inverts with its square so both colours stay legible. ---- */
.pz-coord {
  position: absolute;
  z-index: 1;
  pointer-events: none;
  user-select: none;
  font-size: 0.56rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  line-height: 1;
  letter-spacing: 0.01em;
  opacity: 0.8;
}
.pz-coord--rank { top: 3px; left: 4px; }
.pz-coord--file { bottom: 3px; right: 4px; }
.puzzle-board .pz-sq.light .pz-coord {
  color: color-mix(in srgb, var(--board-dark) 72%, #000);
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.22);
}
.puzzle-board .pz-sq.dark .pz-coord {
  color: color-mix(in srgb, var(--board-light) 78%, #fff);
  text-shadow: 0 1px 0 rgba(0, 0, 0, 0.35);
}

/* ---- Freshly-arrived piece fallback for non-landing re-tags. The full bounce
   is declared with the last-move landing stack above (.is-landing.is-last-to). ---- */
@keyframes pz-piece-in {
  from { opacity: 0; transform: scale(0.72); }
  to { opacity: 1; transform: scale(1); }
}
.puzzle-board .pz-sq img.is-new {
  animation: pz-piece-in 0.22s cubic-bezier(0.34, 1.56, 0.64, 1);
}
/* Re-assert landing bounce after the generic pop so it wins the cascade. */
.puzzle-board .pz-sq.is-landing.is-last-to img.is-new {
  animation: pz-last-move-piece 0.52s cubic-bezier(0.18, 0.9, 0.28, 1);
  transform-origin: center bottom;
}
html[data-highlights="soft"] .puzzle-board .pz-sq.is-landing.is-last-to img.is-new {
  animation: pz-last-move-piece-soft 0.48s cubic-bezier(0.2, 0.85, 0.25, 1);
}

/* The floating copy that follows the cursor. Clean piece with a soft shadow,
   no border — the piece image speaks for itself. */
.puzzle-drag-clone {
  position: fixed;
  z-index: 9999;
  pointer-events: none;
  width: 80px; height: 80px;
  opacity: 0.94;
  transform: translate(-50%, -50%) scale(1.06);
  filter: drop-shadow(0 6px 16px rgba(0, 0, 0, 0.25));
}

/* Board Actions */
.puzzle-board-actions {
  display: flex;
  gap: 1rem;
  flex-shrink: 0;
}
.puzzle-board-actions .btn {
  padding: 0.75rem 1.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: 12px;
  transition: all 0.3s ease;
}
.puzzle-board-opening {
  margin: 0;
  font-size: 0.85rem;
  color: var(--muted);
  text-align: center;
}

/* Right Info Panel — same height as the board square, top-aligned. */
.puzzle-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 1.75rem 1.75rem 2rem;
  width: 100%;
  height: var(--pz-board);
  max-height: var(--pz-board);
  min-height: 0;
  box-sizing: border-box;
  align-self: start;
  box-shadow: var(--panel-glow);
  overflow: auto;
}


.puzzle-info {
  margin-bottom: 0.75rem;
}
.puzzle-info-label {
  font-size: 0.98rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 2px solid var(--line);
  display: flex;
  align-items: center;
  gap: 0.625rem;
}
.puzzle-info-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 1rem 0.75rem;
  border-bottom: 1px solid var(--fill-subtle);
  transition: all 0.2s ease;
  font-size: 1.06rem;
  gap: 0.5rem;
}
.puzzle-info-row:hover {
  padding-left: 0.75rem;
  padding-right: 0.75rem;
  margin-left: -0.75rem;
  margin-right: -0.75rem;
  border-radius: 10px;
  background: color-mix(in srgb, var(--gold) 4%, transparent);
}
.puzzle-info-row:last-child { border-bottom: none; }
.puzzle-info-row .key {
  font-size: 0.875rem;
  color: var(--muted);
  font-weight: 600;
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.puzzle-info-row .val {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
}

/* Progress meter under "Moves to find": one segment per solver move, filling
   as the solver finds them (puzzles.js markProgress). */
.puzzle-move-progress {
  display: flex;
  gap: 3px;
  padding: 0.15rem 0.75rem 0.6rem;
}
.puzzle-move-seg {
  flex: 1 1 0;
  height: 4px;
  border-radius: 999px;
  background: var(--line);
  transition: background 0.25s ease, box-shadow 0.25s ease;
}
.puzzle-move-seg.is-fill {
  background: linear-gradient(90deg, var(--gold-deep), var(--gold-bright));
  box-shadow: 0 0 6px color-mix(in srgb, var(--gold) 40%, transparent);
}
.puzzle-move-seg.is-fill.is-pop {
  animation: pz-seg-pop 0.42s cubic-bezier(0.34, 1.4, 0.64, 1);
}
@keyframes pz-seg-pop {
  0% { transform: scaleX(0.55) scaleY(0.7); opacity: 0.55; }
  55% { transform: scaleX(1.08) scaleY(1.35); opacity: 1; }
  100% { transform: scaleX(1) scaleY(1); opacity: 1; }
}

/* Board FX: sparkle at a square, confetti over the board (puzzles.js). */
.puzzle-fx-sparkle {
  position: absolute;
  pointer-events: none;
  z-index: 4;
}
.puzzle-fx-sparkle i {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 6px;
  height: 6px;
  margin: -3px 0 0 -3px;
  border-radius: 50%;
  background: #f5e6a8;
  box-shadow: 0 0 8px color-mix(in srgb, var(--gold-bright, #e8c547) 70%, transparent);
  animation: pz-fx-sparkle-burst 0.7s ease-out forwards;
}
.puzzle-fx-sparkle i:nth-child(1) { --dx: -28px; --dy: -22px; background: #86efac; }
.puzzle-fx-sparkle i:nth-child(2) { --dx: 26px; --dy: -18px; background: #fbbf24; }
.puzzle-fx-sparkle i:nth-child(3) { --dx: -18px; --dy: 24px; background: #7ec08a; }
.puzzle-fx-sparkle i:nth-child(4) { --dx: 22px; --dy: 20px; background: #fde68a; }
.puzzle-fx-sparkle i:nth-child(5) { --dx: 0px; --dy: -30px; background: #fb923c; }
.puzzle-fx-sparkle i:nth-child(6) { --dx: 0px; --dy: 28px; background: #e8c547; }
@keyframes pz-fx-sparkle-burst {
  0% { opacity: 1; transform: translate(0, 0) scale(0.4); }
  100% { opacity: 0; transform: translate(var(--dx), var(--dy)) scale(1.2); }
}
.puzzle-fx-confetti {
  position: absolute;
  inset: 0;
  z-index: 5;
  overflow: hidden;
}
.puzzle-fx-confetti span {
  position: absolute;
  top: -8%;
  width: 7px;
  height: 11px;
  border-radius: 2px;
  opacity: 0.95;
  animation: pz-fx-confetti-fall 1.45s ease-in forwards;
}
@keyframes pz-fx-confetti-fall {
  0% { transform: translate3d(0, 0, 0) rotate(0deg); opacity: 1; }
  100% { transform: translate3d(var(--drift, 20px), 115%, 0) rotate(var(--spin, 240deg)); opacity: 0; }
}

/* Theme chips — each theme is its own pill, so the row reads like a ticket. */
#puzzle-themes {
  display: inline-flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.35rem;
  max-width: 100%;
}
.pz-theme-chip {
  padding: 0.18rem 0.55rem;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--gold) 26%, var(--line));
  background: color-mix(in srgb, var(--gold) 7%, transparent);
  color: var(--cream-dim);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  line-height: 1.4;
  white-space: nowrap;
  text-transform: capitalize;
}

/* Keyboard hint under the actions ("Press Space for the next puzzle"). */
.puzzle-key-hints {
  margin: 0.7rem 0 0;
  text-align: center;
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--muted);
}
.puzzle-key-hints[hidden] {
  display: none;
}
.puzzle-key-hints kbd {
  display: inline-block;
  padding: 0.12rem 0.42rem;
  margin: 0 0.1rem;
  border-radius: 6px;
  border: 1px solid var(--line);
  border-bottom-width: 2px;
  background: var(--fill-subtle);
  color: var(--text);
  font-family: inherit;
  font-size: 0.68rem;
  font-weight: 800;
}
/* Themes can contain many names — let them wrap cleanly. */
#puzzle-themes {
  display: inline;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--muted);
  line-height: 1.45;
  word-break: break-word;
  max-width: 100%;
}

.puzzle-difficulty {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 1.1rem;
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  position: relative;
  overflow: hidden;
  border: 1px solid transparent;
}
.puzzle-difficulty.easy {
  background: linear-gradient(135deg, color-mix(in srgb, #7ec08a 20%, transparent), color-mix(in srgb, #7ec08a 8%, transparent));
  color: #4a6b52;
  border-color: color-mix(in srgb, #7ec08a 30%, var(--line));
  box-shadow: 0 2px 8px color-mix(in srgb, #7ec08a 20%, transparent);
}
.puzzle-difficulty.medium {
  background: linear-gradient(135deg, color-mix(in srgb, #deb856 20%, transparent), color-mix(in srgb, #deb856 8%, transparent));
  color: #7a5e32;
  border-color: color-mix(in srgb, #deb856 30%, var(--line));
  box-shadow: 0 2px 8px color-mix(in srgb, #deb856 20%, transparent);
}
.puzzle-difficulty.hard {
  background: linear-gradient(135deg, color-mix(in srgb, #e07b5e 20%, transparent), color-mix(in srgb, #e07b5e 8%, transparent));
  color: #835539;
  border-color: color-mix(in srgb, #e07b5e 30%, var(--line));
  box-shadow: 0 2px 8px color-mix(in srgb, #e07b5e 20%, transparent);
}
.puzzle-difficulty.master {
  background: linear-gradient(135deg, color-mix(in srgb, #d45a5a 20%, transparent), color-mix(in srgb, #d45a5a 8%, transparent));
  color: #6b3e3e;
  border-color: color-mix(in srgb, #d45a5a 30%, var(--line));
  box-shadow: 0 2px 8px color-mix(in srgb, #d45a5a 20%, transparent);
}

/* Mode tabs: Rated | Unrated | Rush */
.puzzle-mode-tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.35rem;
  padding: 0.4rem;
  background: linear-gradient(135deg, var(--bg-2), color-mix(in srgb, var(--bg-2) 95%, transparent));
  border-radius: 16px;
  margin-bottom: 1.25rem;
  border: 1px solid var(--line);
  position: relative;
  z-index: 1;
}
.puzzle-mode-tab {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 0.92rem;
  font-weight: 600;
  padding: 0.7rem 0.5rem;
  border-radius: 12px;
  cursor: pointer;
  transition: color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}
.puzzle-mode-tab:hover {
  color: var(--text);
}
.puzzle-mode-tab.is-active {
  color: var(--gold);
  background: color-mix(in srgb, var(--gold) 14%, var(--bg));
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--gold) 35%, var(--line));
  font-weight: 700;
}
.puzzle-mode-tab:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--gold) 55%, transparent);
  outline-offset: 2px;
}

/* Puzzle Rush HUD */
.puzzle-rush-hud {
  display: grid;
  gap: 0.75rem;
  padding: 1.1rem 1.25rem;
  margin: 0 0 1rem;
  border-radius: 14px;
  border: 1px solid color-mix(in srgb, #d4a24a 28%, var(--line));
  background: linear-gradient(145deg, color-mix(in srgb, #d4a24a 10%, var(--bg-2)), var(--bg-2));
}
.puzzle-rush-meter {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
}
.puzzle-rush-timer {
  font-variant-numeric: tabular-nums;
  font-size: 1.55rem;
  font-weight: 750;
  letter-spacing: 0.02em;
  color: var(--text);
  min-width: 3.4ch;
}
.puzzle-rush-timer.is-low {
  color: #c45c5c;
}
.puzzle-rush-lives {
  display: inline-flex;
  gap: 0.35rem;
}
.puzzle-rush-life {
  width: 0.72rem;
  height: 0.72rem;
  border-radius: 50%;
  background: color-mix(in srgb, var(--muted) 35%, transparent);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--line) 80%, transparent);
}
.puzzle-rush-life.is-full {
  background: #c45c5c;
  box-shadow: none;
}
.puzzle-rush-score-wrap {
  font-size: 0.95rem;
  color: var(--muted);
}
.puzzle-rush-score-wrap strong {
  color: var(--text);
  font-size: 1.15rem;
  font-variant-numeric: tabular-nums;
}
.puzzle-rush-best {
  margin: 0;
  font-size: 0.88rem;
  color: var(--muted);
}
.puzzle-rush-hint {
  margin: 0;
  font-size: 0.82rem;
  color: var(--muted);
}
.puzzle-rush-hud #puzzle-rush-start {
  width: 100%;
}
.puzzle-rush-end-score {
  font-size: 1.05rem;
}
.puzzle-rush-end-best {
  margin: 0.35rem 0 0;
  color: var(--muted);
}
.puzzle-rush-end-guest {
  margin: 1rem 0 0;
  font-size: 0.9rem;
  color: var(--muted);
  text-align: center;
}
.puzzle-main[data-mode="rush"] .puzzle-theme-filter,
.puzzle-main[data-mode="rush"] #puzzle-actions,
.puzzle-main[data-mode="rush"] #puzzle-next-hint,
.puzzle-main[data-mode="rush"] #puzzle-key-hints {
  display: none !important;
}
.puzzle-main[data-mode="rush"].is-rush-live #puzzle-show-solution-btn,
.puzzle-main[data-mode="rush"].is-rush-live #puzzle-retry-btn {
  display: none !important;
}

.puzzle-mode-status {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 1.1rem 1.4rem;
  background: linear-gradient(135deg, color-mix(in srgb, var(--gold) 10%, var(--bg-2)), color-mix(in srgb, var(--gold) 5%, var(--bg-2)));
  border-radius: 12px;
  font-size: 0.95rem;
  line-height: 1.5;
  border: 1px solid color-mix(in srgb, var(--gold) 20%, var(--line));
  position: relative;
  z-index: 1;
  margin-top: 1rem;
}
.puzzle-mode-status-icon {
  display: inline-flex;
  flex: 0 0 auto;
  color: var(--gold-bright);
}
.puzzle-mode-status-icon svg {
  width: 18px;
  height: 18px;
}

/* Enhanced Theme Selection */
.puzzle-theme-filter {
  margin-top: 3rem;
  position: relative;
  z-index: 1;
}
/* Rated mode locks the picker: a rated attempt is always played across every
   theme, so the select stays disabled until Unrated is switched on. */
.puzzle-theme-filter select:disabled {
  cursor: not-allowed;
  opacity: 0.72;
  border-color: var(--line);
  color: var(--muted);
  box-shadow: none;
}
.puzzle-theme-filter select:disabled:hover {
  border-color: var(--line);
  background: linear-gradient(135deg, var(--bg-2), color-mix(in srgb, var(--bg-2) 95%, transparent));
  box-shadow: none;
}
.puzzle-theme-filter select {
  width: 100%;
  padding: 1rem 1.25rem;
  background: linear-gradient(135deg, var(--bg-2), color-mix(in srgb, var(--bg-2) 95%, transparent));
  border: 2px solid var(--line);
  border-radius: 14px;
  color: var(--text);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.4;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: inset 0 1px 3px rgba(0,0,0,0.1);
}
.puzzle-theme-filter select:hover {
  border-color: var(--gold);
  background: color-mix(in srgb, var(--gold) 8%, var(--bg-2));
  box-shadow: 0 4px 16px color-mix(in srgb, var(--gold) 15%, transparent);
}
.puzzle-theme-filter select:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--gold) 20%, transparent), 0 4px 16px color-mix(in srgb, var(--gold) 15%, transparent);
}

/* Coach feedback card — the Cyber Chameleon mark + a one-line coaching message.

   The old strip hid behind `display:none` even after JS removed the `hidden`
   attribute, so it never showed. The card is explicit about it: `[hidden]` is
   the only way to hide it, and removing the attribute (or hideFeedback) reveals
   it. The avatar's own pill state (brilliant / blunder / idle) carries the
   reaction; the border just tints the card subtly. */
.puzzle-feedback[hidden] {
  display: none;
}

.puzzle-feedback {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.15rem;
  border-radius: 16px;
  margin-top: 1rem;
  border: 1px solid var(--line);
  background: var(--panel);
  animation: slideInUp 0.35s ease;
  position: relative;
  z-index: 1;
}

/* The chameleon avatar leads the card; sizing comes from the shared component
   (coach_chameleon.css: 56px desktop, 48px ≤480px) so every coach mark on the
   site keeps the same size. */
.puzzle-feedback .coach-avatar-panel {
  flex: 0 0 auto;
}

.puzzle-coach-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.puzzle-coach-kicker {
  margin: 0;
  font-size: 0.64rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
}

.puzzle-feedback-text {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--cream);
  line-height: 1.5;
}

.puzzle-feedback-points {
  margin: 0;
  font-size: 0.78rem;
  color: var(--muted);
}

.puzzle-feedback.is-success {
  border-color: color-mix(in srgb, #7ec08a 38%, var(--line));
  background: linear-gradient(135deg, color-mix(in srgb, #7ec08a 10%, var(--panel)), color-mix(in srgb, #7ec08a 4%, var(--panel)));
}

.puzzle-feedback.is-error {
  border-color: color-mix(in srgb, #d45a5a 38%, var(--line));
  background: linear-gradient(135deg, color-mix(in srgb, #d45a5a 10%, var(--panel)), color-mix(in srgb, #d45a5a 4%, var(--panel)));
}

@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Floating "Puzzle solved" notification (puzzles.js notifySolved). Sits above
   the page (header z-index 100) but below the sign-up dialog (300) so the
   popup always stays interactive on top. */
.puzzle-toast {
  position: fixed;
  top: 6.5rem;
  left: 50%;
  z-index: 200;
  display: flex;
  align-items: center;
  gap: 0.85rem;
  max-width: min(92vw, 30rem);
  padding: 0.85rem 1.5rem 0.85rem 0.95rem;
  border: 1px solid color-mix(in srgb, #7ec08a 45%, var(--line));
  border-radius: 999px;
  background: linear-gradient(135deg, var(--panel), color-mix(in srgb, #7ec08a 10%, var(--panel)));
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.35), 0 0 24px color-mix(in srgb, #7ec08a 22%, transparent);
  color: var(--text);
  opacity: 0;
  visibility: hidden;
  transform: translate(-50%, -130%);
  transition: opacity 0.28s ease, transform 0.38s cubic-bezier(0.22, 1, 0.36, 1), visibility 0s linear 0.38s;
  pointer-events: none;
}
.puzzle-toast.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, 0);
  transition: opacity 0.28s ease, transform 0.38s cubic-bezier(0.22, 1, 0.36, 1);
  pointer-events: auto;
}
.puzzle-toast-icon {
  display: grid;
  place-items: center;
  flex-shrink: 0;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, #7ec08a, #4f9e6e);
  color: #fff;
  box-shadow: 0 4px 12px color-mix(in srgb, #7ec08a 45%, transparent);
}
.puzzle-toast-copy {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  min-width: 0;
}
.puzzle-toast-copy strong {
  font-size: 0.95rem;
  font-weight: 800;
  letter-spacing: -0.01em;
}
.puzzle-toast-detail {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
@media (prefers-reduced-motion: reduce) {
  .puzzle-toast,
  .puzzle-toast.is-visible {
    transition: none;
    transform: translate(-50%, 0);
  }
}

/* Enhanced Action Buttons */
.puzzle-actions {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
  position: relative;
  z-index: 1;
}
.puzzle-actions .btn {
  flex: 1;
  padding: 1.4rem 1.6rem;
  font-size: 1.06rem;
  font-weight: 700;
  border-radius: 14px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.puzzle-actions .btn-gold {
  background: linear-gradient(135deg, var(--gold), var(--om-brass-bright));
  color: var(--bg);
  border: none;
  box-shadow: 0 4px 16px color-mix(in srgb, var(--gold) 30%, transparent);
  font-weight: 800;
}
.puzzle-actions .btn-gold:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px color-mix(in srgb, var(--gold) 50%, transparent);
}
.puzzle-actions .btn:active {
  transform: translateY(1px) scale(0.985);
}
.puzzle-actions .btn-gold::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s ease;
}
.puzzle-actions .btn-gold:hover::before {
  left: 100%;
}
/* Rated mode keeps "Next puzzle" locked until the attempt is solved or failed
   once (#puzzle-next-hint explains why the button is disabled). */
.puzzle-actions .btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}
.puzzle-actions .btn:disabled:hover {
  transform: none;
  box-shadow: none;
}
.puzzle-actions .btn-gold:disabled::before {
  display: none;
}
.puzzle-next-hint {
  margin: 0.75rem 0 0;
  text-align: center;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--muted);
  line-height: 1.5;
}
.puzzle-next-hint[hidden] {
  display: none;
}

/* Loading Indicator */
/* Loading veil — covers the whole instrument during a puzzle fetch instead of
   appearing below it. The backdrop blur keeps the stale board from flickering
   and the shimmer block reads as a skeleton board. */
.puzzle-loading {
  position: absolute;
  inset: 0;
  z-index: 25;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 2rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--muted);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border-radius: 20px;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}
/* Fade (puzzles.js hideLoadVeil) — visibility keeps the veil from blocking
   pointer events while it is transparent mid-fade. */
.puzzle-loading.is-leaving {
  opacity: 0;
  visibility: hidden;
}

/* First-entry reveal: after the veil clears, the instrument settles in with a
   short rise + fade, staggered per column. The veil excludes itself. */
.puzzle-main.is-entry-reveal .puzzle-page-header,
.puzzle-main.is-entry-reveal .puzzle-layout > :not(#puzzle-loading) {
  animation: pz-entry-in 0.55s cubic-bezier(0.22, 1, 0.36, 1) both;
}
.puzzle-main.is-entry-reveal .puzzle-layout > :nth-child(2):not(#puzzle-loading) {
  animation-delay: 60ms;
}
.puzzle-main.is-entry-reveal .puzzle-layout > :nth-child(3):not(#puzzle-loading) {
  animation-delay: 120ms;
}
@keyframes pz-entry-in {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}
.puzzle-loading::before {
  content: "";
  width: min(44vh, 300px);
  aspect-ratio: 1;
  border-radius: 10px;
  border: 1px solid color-mix(in srgb, var(--line) 70%, transparent);
  background:
    linear-gradient(100deg,
      var(--bg-2) 30%,
      color-mix(in srgb, var(--gold) 7%, var(--bg-2)) 50%,
      var(--bg-2) 70%);
  background-size: 220% 100%;
  animation: pz-shimmer 1.4s linear infinite;
  opacity: 0.75;
}
@keyframes pz-shimmer {
  from { background-position: 135% 0; }
  to { background-position: -85% 0; }
}
.puzzle-loading-spinner {
  width: 28px;
  height: 28px;
  border: 3px solid var(--line);
  border-top-color: var(--gold);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Leaderboard — flush section inside the left glass rail (no nested card).
   style_profile.css loads sitewide now and styles .leaderboard-* for the
   full /leaderboard page (2-col rows, 72px sm avatars, min-height:100%
   ranks). Every rule below is scoped + resets those leaks so the rail
   stays a compact 4-col list. */
.puzzle-leaderboard-panel {
  --pz-lb-metal-1: #f0c14a;
  --pz-lb-metal-2: #a8b4c4;
  --pz-lb-metal-3: #d4894a;
  --avatar-size: 1.9rem;
  min-width: 0;
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
  padding: 0;
  margin: 0;
  position: relative;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}
.puzzle-leaderboard-panel .leaderboard-header {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0.55rem;
  padding: 0 0 0.75rem;
  border-bottom: 1px solid var(--line);
  margin: 0;
  background: transparent;
}
.puzzle-leaderboard-panel .leaderboard-title-group {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  min-width: 0;
}
.puzzle-leaderboard-panel .leaderboard-title-icon {
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  flex: 0 0 auto;
  border-radius: 9px;
  border: 1px solid color-mix(in srgb, var(--gold) 36%, var(--line));
  background: color-mix(in srgb, var(--gold) 12%, var(--fill-subtle));
  font-size: 0.95rem;
  box-shadow: none;
}
.puzzle-leaderboard-panel .leaderboard-title-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}
.puzzle-leaderboard-panel .leaderboard-title-main {
  font-size: 0.92rem;
  font-weight: 800;
  letter-spacing: -0.015em;
  color: var(--cream);
}
.puzzle-leaderboard-panel .leaderboard-title-sub {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
}
/* Live pulse — puzzles.js refreshes the list from /api/puzzle/leaderboard. */
.puzzle-leaderboard-panel .leaderboard-title-sub::before {
  content: "";
  width: 6px;
  height: 6px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 6px color-mix(in srgb, var(--gold) 55%, transparent);
  animation: puzzle-lb-pulse 1.8s ease-out infinite;
}
@keyframes puzzle-lb-pulse {
  0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--gold) 45%, transparent); }
  70% { box-shadow: 0 0 0 6px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}

/* Sign-in CTA for the guest view. */
.puzzle-leaderboard-panel .leaderboard-signin-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-height: 34px;
  padding: 0 0.75rem;
  border-radius: 9px;
  border: 1px solid color-mix(in srgb, var(--gold) 40%, var(--line));
  background: color-mix(in srgb, var(--gold) 12%, transparent);
  color: var(--gold-bright);
  font-size: 0.74rem;
  font-weight: 750;
  text-decoration: none;
  box-shadow: none;
  transition: background 0.2s ease, border-color 0.2s ease;
}
.puzzle-leaderboard-panel .leaderboard-signin-cta .cta-icon {
  font-size: 0.9rem;
}
.puzzle-leaderboard-panel .leaderboard-signin-cta:hover,
.puzzle-leaderboard-panel .leaderboard-signin-cta:focus-visible {
  background: color-mix(in srgb, var(--gold) 20%, transparent);
  border-color: var(--gold);
  box-shadow: none;
  transform: none;
}

/* Compact "you" status strip under the header. */
.puzzle-leaderboard-panel .leaderboard-you-line {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0.55rem 0 0;
  padding: 0.45rem 0.6rem;
  border-radius: 9px;
  border: 1px solid color-mix(in srgb, var(--gold) 32%, var(--line));
  background: color-mix(in srgb, var(--gold) 10%, transparent);
  color: var(--cream);
  font-size: 0.76rem;
  font-weight: 650;
  line-height: 1.3;
  font-variant-numeric: tabular-nums;
  box-shadow: none;
}
.puzzle-leaderboard-panel .leaderboard-you-label {
  flex: 0 0 auto;
  padding: 0.12rem 0.4rem;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--gold) 45%, transparent);
  background: color-mix(in srgb, var(--gold) 18%, transparent);
  color: var(--gold-bright);
  font-size: 0.6rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  box-shadow: none;
}
.puzzle-leaderboard-panel .leaderboard-you-stats {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.3rem 0.5rem;
  min-width: 0;
}
.puzzle-leaderboard-panel .leaderboard-you-stats strong {
  font-size: 0.92rem;
  font-weight: 800;
  color: var(--gold-bright);
  font-variant-numeric: tabular-nums;
}
.puzzle-leaderboard-panel .leaderboard-you-rank {
  color: var(--cream);
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}
.puzzle-leaderboard-panel .leaderboard-you-gap {
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 100%;
}

.puzzle-leaderboard-panel .leaderboard-list {
  list-style: none;
  margin: 0.35rem 0 0;
  padding: 0.1rem 0 0.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.22rem;
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: color-mix(in srgb, var(--gold) 35%, transparent) transparent;
}
.puzzle-leaderboard-panel .leaderboard-list::-webkit-scrollbar {
  width: 6px;
}
.puzzle-leaderboard-panel .leaderboard-list::-webkit-scrollbar-track {
  background: transparent;
}
.puzzle-leaderboard-panel .leaderboard-list::-webkit-scrollbar-thumb {
  background: color-mix(in srgb, var(--gold) 40%, transparent);
  border-radius: 999px;
  border: 1px solid transparent;
  background-clip: content-box;
}
.puzzle-leaderboard-panel .leaderboard-list::-webkit-scrollbar-thumb:hover {
  background: color-mix(in srgb, var(--gold-bright) 55%, transparent);
  background-clip: content-box;
}

/* Row: rank · avatar · name/meta · rating — the four children both the
   puzzle_lb_row macro and puzzles.js rowHtml() emit.
   Resets style_profile's 2-col /leaderboard grid (rank | members-card). */
.puzzle-leaderboard-panel .leaderboard-row {
  display: grid;
  grid-template-columns: 1.7rem 1.9rem minmax(0, 1fr) max-content;
  column-gap: 0.45rem;
  row-gap: 0;
  align-items: center;
  padding: 0.38rem 0.4rem;
  border: 1px solid transparent;
  border-radius: 9px;
  background: transparent;
  animation: none;
  transition: background 0.16s ease, border-color 0.16s ease;
}
.puzzle-leaderboard-panel .leaderboard-row:hover {
  background: var(--fill-subtle);
  border-color: var(--line);
  box-shadow: none;
}
.puzzle-leaderboard-panel .leaderboard-row.is-you {
  border-color: color-mix(in srgb, var(--gold) 40%, var(--line));
  background: color-mix(in srgb, var(--gold) 10%, transparent);
  box-shadow: none;
}
.puzzle-leaderboard-panel .leaderboard-row.is-1 {
  border-color: color-mix(in srgb, var(--pz-lb-metal-1) 28%, var(--line));
  background: color-mix(in srgb, var(--pz-lb-metal-1) 10%, transparent);
  box-shadow: none;
  animation: none;
}
.puzzle-leaderboard-panel .leaderboard-row.is-2 {
  border-color: color-mix(in srgb, var(--pz-lb-metal-2) 24%, var(--line));
  background: color-mix(in srgb, var(--pz-lb-metal-2) 8%, transparent);
  animation: none;
}
.puzzle-leaderboard-panel .leaderboard-row.is-3 {
  border-color: color-mix(in srgb, var(--pz-lb-metal-3) 26%, var(--line));
  background: color-mix(in srgb, var(--pz-lb-metal-3) 9%, transparent);
  animation: none;
}
.puzzle-leaderboard-panel .leaderboard-row.is-up .leaderboard-score {
  color: var(--data-up);
  animation: puzzle-lb-pop 0.45s ease;
}
.puzzle-leaderboard-panel .leaderboard-row.is-down .leaderboard-score {
  color: var(--data-down);
}
@keyframes puzzle-lb-pop {
  from { transform: scale(1.12); }
  to { transform: scale(1); }
}

/* Circle badge — kill style_profile's rectangular min-height:100% rank. */
.puzzle-leaderboard-panel .leaderboard-rank {
  display: grid;
  place-items: center;
  align-self: center;
  width: 1.7rem;
  height: 1.7rem;
  min-width: 1.7rem;
  min-height: 0;
  max-height: 1.7rem;
  padding: 0;
  gap: 0;
  flex-direction: unset;
  border-radius: 50%;
  border: 1px solid color-mix(in srgb, var(--gold) 22%, var(--line));
  background: color-mix(in srgb, var(--gold) 10%, var(--bg-2));
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  line-height: 1;
  box-shadow: none;
}
.puzzle-leaderboard-panel .leaderboard-rank-num {
  display: block;
  font-size: inherit;
}
.puzzle-leaderboard-panel .leaderboard-rank-medal {
  display: none;
}
.puzzle-leaderboard-panel .leaderboard-row.is-1 .leaderboard-rank {
  border-color: color-mix(in srgb, var(--pz-lb-metal-1) 55%, transparent);
  background: color-mix(in srgb, var(--pz-lb-metal-1) 28%, var(--bg-2));
  color: #fff4c8;
  box-shadow: none;
}
.puzzle-leaderboard-panel .leaderboard-row.is-2 .leaderboard-rank {
  border-color: color-mix(in srgb, var(--pz-lb-metal-2) 50%, transparent);
  background: color-mix(in srgb, var(--pz-lb-metal-2) 26%, var(--bg-2));
  color: #eef2f7;
  box-shadow: none;
}
.puzzle-leaderboard-panel .leaderboard-row.is-3 .leaderboard-rank {
  border-color: color-mix(in srgb, var(--pz-lb-metal-3) 50%, transparent);
  background: color-mix(in srgb, var(--pz-lb-metal-3) 26%, var(--bg-2));
  color: #ffe0c0;
  box-shadow: none;
}
.puzzle-leaderboard-panel .leaderboard-score {
  display: block;
  margin-left: 0;
  padding-left: 0;
  font-size: 0.9rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  color: var(--gold-bright);
  letter-spacing: -0.01em;
  text-shadow: none;
  text-align: right;
}
.puzzle-leaderboard-panel .leaderboard-row.is-1 .leaderboard-score {
  color: var(--pz-lb-metal-1);
  text-shadow: none;
}
.puzzle-leaderboard-panel .leaderboard-row.is-2 .leaderboard-score {
  color: color-mix(in srgb, var(--pz-lb-metal-2) 75%, #fff);
}
.puzzle-leaderboard-panel .leaderboard-row.is-3 .leaderboard-score {
  color: color-mix(in srgb, var(--pz-lb-metal-3) 80%, #fff);
}
.puzzle-leaderboard-panel .leaderboard-row.is-you .leaderboard-score {
  color: var(--gold-bright);
}

/* Compact avatars — override style_profile's 72px --avatar-size and the
   3px !important frame borders from style_avatar_frames.css. */
.puzzle-leaderboard-panel .avatar-frame,
.puzzle-leaderboard-panel .avatar-frame.avatar-frame--sm,
.puzzle-leaderboard-panel .avatar-frame.avatar-frame--sm[class*="avatar-frame--style-"],
.puzzle-leaderboard-panel .avatar-frame.avatar-frame--sm.avatar-frame--unlimited {
  --avatar-size: 1.9rem;
  position: relative;
  display: inline-grid;
  place-items: center;
  width: 1.9rem !important;
  height: 1.9rem !important;
  min-width: 1.9rem;
  min-height: 1.9rem;
  flex: 0 0 auto;
  border-radius: 50% !important;
  background: color-mix(in srgb, var(--gold) 12%, var(--thumb-bg));
  border-style: solid !important;
  border-width: 2px !important;
  border-color: color-mix(in srgb, var(--gold) 28%, var(--line));
  box-shadow: none !important;
  overflow: hidden;
  filter: none !important;
  animation: none !important;
}
.puzzle-leaderboard-panel .avatar-frame[class*="avatar-frame--style-"],
.puzzle-leaderboard-panel .avatar-frame--unlimited {
  border-color: var(--frame-rim, color-mix(in srgb, var(--gold) 55%, var(--line))) !important;
  box-shadow: none !important;
}
.puzzle-leaderboard-panel .avatar-photo,
.puzzle-leaderboard-panel .avatar-glyph,
.puzzle-leaderboard-panel .members-mark {
  display: grid;
  place-items: center;
  width: 100% !important;
  height: 100% !important;
  border: 0 !important;
  border-radius: 50% !important;
  object-fit: cover;
  box-sizing: border-box;
}
.puzzle-leaderboard-panel .members-mark {
  color: var(--gold-bright);
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
}
.puzzle-leaderboard-panel .members-copy {
  display: grid;
  gap: 1px;
  min-width: 0;
}
.puzzle-leaderboard-panel .members-copy strong {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  min-width: 0;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--cream);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.puzzle-leaderboard-panel .leaderboard-level-badge,
.puzzle-leaderboard-panel .leaderboard-you-badge {
  display: inline-block;
  flex: 0 0 auto;
  vertical-align: 0;
  margin-left: 0;
  padding: 0.05rem 0.3rem;
  border-radius: 999px;
  font-size: 0.56rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  line-height: 1.35;
}
.puzzle-leaderboard-panel .leaderboard-level-badge {
  border: 1px solid color-mix(in srgb, var(--gold) 28%, var(--line));
  background: color-mix(in srgb, var(--gold) 10%, transparent);
  color: var(--gold-bright);
}
.puzzle-leaderboard-panel .leaderboard-you-badge {
  border: 1px solid color-mix(in srgb, var(--gold) 45%, transparent);
  background: color-mix(in srgb, var(--gold) 20%, transparent);
  color: var(--gold-bright);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  box-shadow: none;
}
.puzzle-leaderboard-panel .members-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.64rem;
  line-height: 1.25;
  color: var(--muted);
}
.puzzle-leaderboard-panel .premium-pill {
  padding: 0.02rem 0.35rem;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--gold) 40%, var(--line));
  background: color-mix(in srgb, var(--gold) 14%, transparent);
  color: var(--gold-bright);
  font-size: 0.52rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.puzzle-leaderboard-panel .premium-pill--plus {
  border-color: color-mix(in srgb, #6aa8ff 55%, var(--line));
  background: color-mix(in srgb, #6aa8ff 18%, transparent);
  color: #9bc4ff;
}

/* Empty state + a way through to the full leaderboard page. */
.puzzle-leaderboard-panel .leaderboard-empty {
  margin: 0.55rem 0 0.25rem;
  padding: 0.85rem 0.75rem;
  border: 1px dashed color-mix(in srgb, var(--gold) 24%, var(--line));
  background: color-mix(in srgb, var(--gold) 6%, transparent);
  border-radius: 10px;
  color: var(--cream-dim);
  font-size: 0.76rem;
  line-height: 1.55;
  text-align: center;
}
.puzzle-leaderboard-panel .leaderboard-empty a {
  color: var(--gold-bright);
  font-weight: 700;
  text-decoration: none;
}
.puzzle-leaderboard-panel .leaderboard-empty a:hover,
.puzzle-leaderboard-panel .leaderboard-empty a:focus-visible {
  text-decoration: underline;
}
.puzzle-lb-foot {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.3rem;
  margin: 0.35rem 0 0;
  padding: 0.5rem 0.25rem 0.1rem;
  border-top: 1px solid var(--line);
  border-radius: 0;
  background: transparent;
  color: var(--gold-bright);
  font-size: 0.72rem;
  font-weight: 700;
  text-decoration: none;
  transition: color 0.2s ease;
}
.puzzle-lb-foot:hover,
.puzzle-lb-foot:focus-visible {
  color: var(--gold);
  background: transparent;
  text-shadow: none;
}

/* Arena intro gate — every-visit dramatic splash before the first puzzle.
   Full-viewport (footer hidden via arena_intro.css :has() rules when that
   sheet is loaded; puzzles also mirrors the lock locally below). Mounted on
   document.body so fixed is never trapped by .page-shell. */
body:has(.puzzle-intro:not([hidden])) {
  overflow: hidden;
}
body:has(.puzzle-intro:not([hidden])) .site-footer {
  display: none !important;
}
.puzzle-intro[hidden] {
  display: none !important;
}
.puzzle-intro {
  position: fixed;
  inset: 0;
  width: 100vw;
  width: 100dvw;
  height: 100vh;
  height: 100dvh;
  z-index: 10000;
  display: grid;
  place-items: center;
  padding: 24px;
  margin: 0;
}
.puzzle-intro-backdrop {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 55% at 50% 38%, color-mix(in srgb, var(--gold) 16%, transparent), transparent 68%),
    radial-gradient(ellipse 90% 70% at 50% 100%, rgba(0, 0, 0, 0.55), transparent 55%),
    rgba(4, 4, 5, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  animation: puzzle-intro-fade 0.4s ease;
}
.puzzle-intro-stage {
  position: relative;
  width: min(480px, 100%);
  padding: 2.6rem 2rem 2rem;
  border-radius: 20px;
  text-align: center;
  color: var(--cream);
  border: 1px solid color-mix(in srgb, var(--gold) 32%, var(--line-strong));
  background:
    radial-gradient(ellipse 85% 55% at 50% -12%, color-mix(in srgb, var(--gold) 22%, transparent), transparent 58%),
    linear-gradient(180deg, color-mix(in srgb, var(--paper) 92%, #fff 8%), var(--paper-2));
  overflow: hidden;
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.05) inset,
    0 1px 0 color-mix(in srgb, var(--gold) 35%, transparent) inset,
    0 0 60px color-mix(in srgb, var(--gold) 12%, transparent),
    0 32px 90px rgba(0, 0, 0, 0.58);
  animation: puzzle-intro-rise 0.55s cubic-bezier(0.22, 1, 0.36, 1);
}
.puzzle-intro-stage::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent 4%,
    color-mix(in srgb, var(--gold) 55%, transparent) 30%,
    color-mix(in srgb, #fff 40%, transparent) 50%,
    color-mix(in srgb, var(--gold) 55%, transparent) 70%,
    transparent 96%
  );
  pointer-events: none;
}
.puzzle-intro-stage::after {
  content: "";
  position: absolute;
  inset: 10px;
  border-radius: 14px;
  border: 1px solid color-mix(in srgb, var(--gold) 12%, transparent);
  pointer-events: none;
}
.puzzle-intro-seal {
  display: grid;
  place-items: center;
  width: 88px;
  height: 88px;
  margin: 0 auto 1.15rem;
  border-radius: 50%;
  font-size: 2.55rem;
  line-height: 1;
  color: var(--gold-bright);
  background:
    radial-gradient(circle at 50% 42%, color-mix(in srgb, var(--gold) 22%, transparent), transparent 68%),
    color-mix(in srgb, var(--gold) 10%, transparent);
  box-shadow:
    0 0 0 1px color-mix(in srgb, var(--gold) 35%, transparent),
    0 0 28px color-mix(in srgb, var(--gold) 22%, transparent);
  filter: drop-shadow(0 0 14px color-mix(in srgb, var(--gold) 28%, transparent));
  animation:
    puzzle-intro-seal 0.7s cubic-bezier(0.22, 1, 0.36, 1) 0.05s both,
    puzzle-intro-breathe 3.6s ease-in-out 0.9s infinite;
}
.puzzle-intro-eyebrow {
  margin: 0 0 0.55rem;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  animation: puzzle-intro-rise 0.55s cubic-bezier(0.22, 1, 0.36, 1) 0.08s both;
}
.puzzle-intro-title {
  margin: 0 0 0.55rem;
  font-family: var(--font);
  font-size: clamp(2.15rem, 5.5vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.05;
  color: var(--cream);
  animation: puzzle-intro-rise 0.55s cubic-bezier(0.22, 1, 0.36, 1) 0.12s both;
}
.puzzle-intro-copy {
  margin: 0 auto 1.15rem;
  max-width: 28ch;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--muted);
  animation: puzzle-intro-rise 0.55s cubic-bezier(0.22, 1, 0.36, 1) 0.16s both;
}
.puzzle-intro-modes {
  list-style: none;
  margin: 0 auto 1.55rem;
  padding: 0.65rem 0.85rem;
  width: min(100%, 22rem);
  text-align: left;
  border-radius: 12px;
  border: 1px solid color-mix(in srgb, var(--gold) 16%, var(--line));
  background: color-mix(in srgb, var(--gold) 6%, rgba(0, 0, 0, 0.22));
  animation: puzzle-intro-rise 0.55s cubic-bezier(0.22, 1, 0.36, 1) 0.18s both;
}
.puzzle-intro-modes li {
  display: grid;
  grid-template-columns: 5.25rem 1fr;
  gap: 0.55rem 0.75rem;
  align-items: baseline;
  padding: 0.42rem 0.25rem;
  font-size: 0.84rem;
  line-height: 1.35;
  color: var(--muted);
}
.puzzle-intro-modes li + li {
  border-top: 1px solid color-mix(in srgb, var(--line) 80%, transparent);
}
.puzzle-intro-modes strong {
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--gold);
}
.puzzle-intro-play {
  position: relative;
  z-index: 1;
  min-width: 11.5rem;
  padding: 0.95rem 2.1rem;
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  animation:
    puzzle-intro-rise 0.55s cubic-bezier(0.22, 1, 0.36, 1) 0.22s both,
    puzzle-intro-pulse 2.4s ease-in-out 1s infinite;
  box-shadow:
    0 0 0 1px color-mix(in srgb, var(--gold-bright) 40%, transparent),
    0 10px 28px color-mix(in srgb, var(--gold) 28%, transparent);
}
.puzzle-intro-play:hover,
.puzzle-intro-play:focus-visible {
  box-shadow:
    0 0 0 1px color-mix(in srgb, var(--gold-bright) 55%, transparent),
    0 12px 36px color-mix(in srgb, var(--gold) 40%, transparent);
}
.puzzle-intro-hint {
  position: relative;
  z-index: 1;
  margin: 0.85rem 0 0;
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: color-mix(in srgb, var(--muted) 88%, transparent);
  animation: puzzle-intro-rise 0.55s cubic-bezier(0.22, 1, 0.36, 1) 0.26s both;
}
.puzzle-intro-hint kbd {
  display: inline-block;
  padding: 0.1em 0.4em;
  border-radius: 4px;
  border: 1px solid color-mix(in srgb, var(--line) 90%, var(--gold));
  background: color-mix(in srgb, var(--paper) 70%, transparent);
  font-family: var(--font);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--cream-dim, var(--muted));
}
html[data-theme="light"] .puzzle-intro-backdrop {
  background:
    radial-gradient(ellipse 70% 55% at 50% 38%, color-mix(in srgb, var(--gold) 12%, transparent), transparent 68%),
    rgba(15, 23, 42, 0.48);
}
html[data-theme="light"] .puzzle-intro-stage {
  border-color: color-mix(in srgb, var(--gold) 34%, var(--line));
  color: var(--text);
  background:
    radial-gradient(ellipse 85% 55% at 50% -12%, color-mix(in srgb, var(--gold) 14%, transparent), transparent 58%),
    linear-gradient(180deg, #fff, var(--paper-2));
  box-shadow:
    0 0 0 1px rgba(15, 23, 42, 0.04) inset,
    0 0 48px color-mix(in srgb, var(--gold) 10%, transparent),
    0 28px 72px rgba(15, 23, 42, 0.18);
}
html[data-theme="light"] .puzzle-intro-title {
  color: var(--text);
}
html[data-theme="light"] .puzzle-intro-seal {
  color: inherit;
  background:
    radial-gradient(circle at 50% 42%, color-mix(in srgb, var(--gold) 16%, transparent), transparent 68%),
    color-mix(in srgb, var(--gold) 8%, #fff);
}
html[data-theme="light"] .puzzle-intro-modes {
  background: rgba(24, 24, 27, 0.03);
  border-color: color-mix(in srgb, var(--gold) 22%, var(--line));
}
html[data-theme="light"] .puzzle-intro-hint kbd {
  color: var(--text);
  background: rgba(24, 24, 27, 0.04);
}
@keyframes puzzle-intro-fade {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes puzzle-intro-rise {
  from {
    opacity: 0;
    transform: translateY(16px) scale(0.96);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}
@keyframes puzzle-intro-seal {
  from {
    opacity: 0;
    transform: scale(0.72);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}
@keyframes puzzle-intro-breathe {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.045); }
}
@keyframes puzzle-intro-pulse {
  0%, 100% {
    box-shadow:
      0 0 0 1px color-mix(in srgb, var(--gold-bright) 40%, transparent),
      0 10px 28px color-mix(in srgb, var(--gold) 28%, transparent);
  }
  50% {
    box-shadow:
      0 0 0 1px color-mix(in srgb, var(--gold-bright) 55%, transparent),
      0 12px 36px color-mix(in srgb, var(--gold) 42%, transparent),
      0 0 28px color-mix(in srgb, var(--gold) 22%, transparent);
  }
}

/* Save Progress Prompt.
   style_training.css owns the trainer's copy of this popup but is not loaded
   on /puzzles, so the card gets its own treatment here. */
.save-progress-prompt[hidden] {
  display: none !important;
}
.save-progress-prompt {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: grid;
  place-items: center;
  padding: 24px;
}
.save-progress-backdrop {
  position: absolute;
  inset: 0;
}
#puzzle-save-prompt .save-progress-backdrop {
  background:
    radial-gradient(ellipse 65% 48% at 50% 42%, color-mix(in srgb, var(--gold) 10%, transparent), transparent 72%),
    rgba(5, 5, 6, 0.74);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  animation: save-progress-fade 0.32s ease;
}
#puzzle-save-prompt .save-progress-card {
  position: relative;
  width: min(400px, 100%);
  padding: 30px 26px 22px;
  border-radius: 18px;
  text-align: center;
  color: var(--cream);
  border: 1px solid var(--line-strong);
  background:
    radial-gradient(ellipse 80% 50% at 50% -8%, color-mix(in srgb, var(--gold) 14%, transparent), transparent 58%),
    linear-gradient(180deg, color-mix(in srgb, var(--paper) 94%, #fff 6%), var(--paper-2));
  overflow: hidden;
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.04) inset,
    0 1px 0 color-mix(in srgb, var(--gold) 22%, transparent) inset,
    0 28px 80px rgba(0, 0, 0, 0.52);
  animation: save-progress-rise 0.42s cubic-bezier(0.22, 1, 0.36, 1);
}
#puzzle-save-prompt .save-progress-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent 6%,
    color-mix(in srgb, var(--gold) 48%, transparent) 34%,
    color-mix(in srgb, #fff 28%, transparent) 50%,
    color-mix(in srgb, var(--gold) 48%, transparent) 66%,
    transparent 94%
  );
  pointer-events: none;
}
#puzzle-save-prompt .save-progress-card h2 {
  margin: 0 0 8px;
  font-family: var(--font);
  font-size: clamp(1.35rem, 3.2vw, 1.55rem);
  font-weight: 750;
  letter-spacing: -0.035em;
  line-height: 1.18;
  color: var(--cream);
}
#puzzle-save-prompt #puzzle-save-copy {
  margin: 0 auto;
  max-width: 34ch;
  font-size: 0.9rem;
  line-height: 1.55;
  color: var(--muted);
}
#puzzle-save-prompt .save-progress-kicker {
  margin: 0 0 8px;
  font-size: 0.65rem;
  font-weight: 750;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
}
#puzzle-save-prompt .save-progress-seal {
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  margin: 0 auto 14px;
  color: var(--gold-bright);
  animation: save-progress-seal 0.65s cubic-bezier(0.22, 1, 0.36, 1) 0.06s both;
}
#puzzle-save-prompt .save-progress-seal svg {
  width: 100%;
  height: 100%;
  filter: drop-shadow(0 0 16px color-mix(in srgb, var(--gold) 30%, transparent));
}
#puzzle-save-prompt .save-progress-perks {
  list-style: none;
  margin: 20px 0 0;
  padding: 4px 4px 4px 8px;
  display: flex;
  flex-direction: column;
  gap: 0;
  text-align: left;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: color-mix(in srgb, var(--fill-subtle, rgba(255, 255, 255, 0.03)) 88%, transparent);
  overflow: hidden;
}
#puzzle-save-prompt .save-progress-perks li {
  display: grid;
  grid-template-columns: 22px 1fr;
  gap: 10px;
  align-items: center;
  padding: 11px 12px;
  font-size: 0.845rem;
  font-weight: 550;
  line-height: 1.4;
  color: var(--cream);
}
#puzzle-save-prompt .save-progress-perks li + li {
  border-top: 1px solid var(--line);
}
#puzzle-save-prompt .save-progress-perk-icon {
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  color: var(--gold);
  background: color-mix(in srgb, var(--gold) 12%, transparent);
}
#puzzle-save-prompt .save-progress-perk-icon svg {
  width: 12px;
  height: 12px;
  display: block;
}
#puzzle-save-prompt .save-progress-actions {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 12px;
  margin-top: 20px;
}
#puzzle-save-prompt .save-progress-actions .btn {
  width: 100%;
  min-height: 46px;
  justify-content: center;
  font-weight: 700;
  letter-spacing: -0.01em;
  border-radius: 11px;
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.28);
}
#puzzle-save-prompt .save-progress-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 8px 10px;
  padding-top: 2px;
}
#puzzle-save-prompt .save-progress-footer-sep {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--muted);
  opacity: 0.55;
}
#puzzle-save-prompt .save-progress-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 28px;
  color: var(--cream-dim);
  font-size: 0.8125rem;
  font-weight: 600;
  text-decoration: none;
  transition: color 0.16s ease;
}
#puzzle-save-prompt .save-progress-secondary:hover,
#puzzle-save-prompt .save-progress-secondary:focus-visible {
  color: var(--gold-bright);
}
#puzzle-save-prompt .save-progress-close {
  position: absolute;
  top: 12px;
  right: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: color-mix(in srgb, var(--paper-2) 70%, transparent);
  color: var(--muted);
  cursor: pointer;
  transition: color 0.16s ease, border-color 0.16s ease, background 0.16s ease;
}
#puzzle-save-prompt .save-progress-close svg {
  width: 14px;
  height: 14px;
  display: block;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
}
#puzzle-save-prompt .save-progress-close:hover,
#puzzle-save-prompt .save-progress-close:focus-visible {
  color: var(--cream);
  border-color: var(--line-strong);
  background: var(--fill-subtle, rgba(255, 255, 255, 0.06));
}
#puzzle-save-prompt .save-progress-close:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--gold) 70%, transparent);
  outline-offset: 2px;
}
#puzzle-save-prompt .save-progress-dismiss {
  border: 0;
  background: transparent;
  color: var(--muted);
  font-family: var(--font);
  font-size: 0.8125rem;
  font-weight: 600;
  cursor: pointer;
  padding: 0;
  min-height: 28px;
  transition: color 0.16s ease;
}
#puzzle-save-prompt .save-progress-dismiss:hover,
#puzzle-save-prompt .save-progress-dismiss:focus-visible {
  color: var(--cream);
}
html[data-theme="light"] #puzzle-save-prompt .save-progress-backdrop {
  background:
    radial-gradient(ellipse 65% 48% at 50% 42%, color-mix(in srgb, var(--gold) 8%, transparent), transparent 72%),
    rgba(15, 23, 42, 0.4);
}
html[data-theme="light"] #puzzle-save-prompt .save-progress-card {
  border-color: color-mix(in srgb, var(--gold) 28%, var(--line));
  background:
    radial-gradient(ellipse 80% 50% at 50% -8%, color-mix(in srgb, var(--gold) 10%, transparent), transparent 58%),
    linear-gradient(180deg, #fff, var(--paper-2));
  box-shadow:
    0 0 0 1px rgba(15, 23, 42, 0.04) inset,
    0 24px 64px rgba(15, 23, 42, 0.16);
}
html[data-theme="light"] #puzzle-save-prompt .save-progress-seal {
  color: var(--gold);
}
html[data-theme="light"] #puzzle-save-prompt .save-progress-perks {
  background: rgba(24, 24, 27, 0.03);
}
html[data-theme="light"] #puzzle-save-prompt .save-progress-close {
  background: rgba(24, 24, 27, 0.03);
}
@keyframes save-progress-fade {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes save-progress-rise {
  from {
    opacity: 0;
    transform: translateY(12px) scale(0.975);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}
@keyframes save-progress-seal {
  from {
    opacity: 0;
    transform: scale(0.78);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Professional stats table - clean card with premium typography. */
.puzzle-stat-grid {
  display: flex;
  flex-direction: column;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--glass-border);
  background: color-mix(in srgb, var(--bg-2) 60%, transparent);
  margin-bottom: 0.5rem;
}

.puzzle-stat-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.55rem 0.85rem;
  min-height: 2.4rem;
  transition: background 0.2s ease;
  border-bottom: 1px solid var(--line);
}
.puzzle-stat-row:last-of-type {
  border-bottom: none;
}
.puzzle-stat-row:hover {
  background: var(--fill-subtle);
}

.puzzle-stat-row--rating {
  border-left: 3px solid var(--gold);
  background: linear-gradient(90deg, color-mix(in srgb, var(--gold) 4%, transparent), transparent 50%);
}
.puzzle-stat-row--rating .puzzle-stat-value {
  display: grid;
  justify-items: end;
  gap: 0.1rem;
  color: var(--gold-bright);
  font-size: 1.2rem;
}
.puzzle-stat-value-line {
  display: inline-flex;
  align-items: baseline;
  gap: 0.45rem;
  min-width: 0;
}
/* The +/- delta chip that flashes next to the rating after an attempt. */
.puzzle-rating-delta {
  padding: 0.1rem 0.4rem;
  border-radius: 999px;
  font-size: 0.68rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0;
  text-transform: none;
  opacity: 0;
  transform: translateY(3px);
  transition: opacity 0.25s ease, transform 0.25s ease;
}
.puzzle-rating-delta.is-up {
  opacity: 1;
  transform: translateY(0);
  color: var(--data-up);
  background: color-mix(in srgb, var(--data-up) 14%, transparent);
}
.puzzle-rating-delta.is-down {
  opacity: 1;
  transform: translateY(0);
  color: var(--data-down);
  background: color-mix(in srgb, var(--data-down) 14%, transparent);
}
/* Elo-bracket label under the hero number ("Candidate master"). */
.puzzle-rating-bracket {
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--muted);
}

.puzzle-stat-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  flex-shrink: 0;
}

.puzzle-stat-icon {
  display: inline-block;
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  color: var(--gold);
  opacity: 0.85;
}

.puzzle-stat-value {
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text);
  font-variant-numeric: tabular-nums;
  text-align: right;
  line-height: 1.3;
}

#puzzle-streak-best {
  font-weight: 600;
  color: var(--cream-dim);
  letter-spacing: 0;
  text-transform: none;
  font-size: 0.5rem;
  margin-left: 0.15rem;
}

.puzzle-stat-barwrap {
  height: 3px;
  background: var(--line);
  overflow: hidden;
}
.puzzle-stat-barfill {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--gold-deep), var(--gold-bright));
  transition: width 0.6s ease;
}
/* Responsive: keep three columns while they fit; stack below that. */
@media (min-width: 1500px) {
  .puzzle-layout {
    --pz-rail-left: 320px;
    --pz-rail-right: 360px;
  }
}
@media (max-width: 1199px) {
  .puzzle-layout {
    --pz-board: min(100vw - 2rem, calc(100dvh - 10rem), 720px);
    grid-template-columns: 1fr;
    width: 100%;
    row-gap: 1.5rem;
  }
  .puzzle-board-wrap {
    order: 1;
    width: var(--pz-board);
    margin-inline: auto;
  }
  .puzzle-board-stage {
    width: var(--pz-board);
    height: var(--pz-board);
  }
  .puzzle-panel {
    order: 2;
    width: min(100%, 420px);
    height: auto;
    max-height: none;
    margin-inline: auto;
  }
  .puzzle-left-panel {
    order: 3;
    width: 100%;
    height: auto;
    max-height: none;
    flex-direction: row;
    flex-wrap: wrap;
    padding: 1.25rem;
  }
  .puzzle-left-panel > * {
    flex: 1 1 280px;
    min-width: 0;
  }
}
@media (max-width: 900px) {
  .puzzles-page .puzzle-main {
    padding: 1.5rem 1rem 4rem;
  }
}
@media (max-width: 600px) {
  .puzzles-page .puzzle-main {
    padding: 1rem 0.75rem 4rem;
    font-size: 1rem;
    max-width: 100%;
    overflow-x: hidden;
  }
  body.puzzles-page .page-shell {
    width: 100%;
    padding: 0;
    max-width: 100%;
    overflow-x: hidden;
  }
  body.puzzles-page {
    overflow-x: hidden;
  }

  .puzzle-layout {
    --pz-board: min(100vw - 1.5rem, calc(100dvh - 10rem));
    grid-template-columns: 1fr !important;
  }
  .puzzle-board-wrap,
  .puzzle-board-stage {
    width: var(--pz-board) !important;
    max-width: 100% !important;
  }
  .puzzle-board-stage {
    height: var(--pz-board) !important;
  }
  .puzzle-panel,
  .puzzle-left-panel {
    width: 100% !important;
    max-width: 100% !important;
    height: auto !important;
    max-height: none !important;
  }
  .puzzle-left-panel {
    flex-direction: column !important;
    flex-wrap: nowrap !important;
    padding: 1rem !important;
  }
  .puzzle-left-panel > * {
    flex: 1 1 100% !important;
  }
  .puzzle-panel {
    padding: 1.25rem !important;
    border-radius: 16px !important;
  }

  /* === MOBILE FIXES — header, actions, feedback, stats === */

  /* Header: stack meta items, shrink rank chip, full-width link */
  .puzzle-page-header {
    gap: 1rem;
    margin-bottom: 1rem;
  }
  .puzzle-page-meta {
    width: 100%;
    justify-content: space-between;
    gap: 0.5rem;
    padding-top: 0.5rem;
    border-top: 1px solid var(--line);
  }
  .puzzle-rank-chip {
    padding: 0.2rem 0.5rem;
    font-size: 0.68rem;
  }
  .puzzle-page-link {
    font-size: 0.78rem;
    padding: 0.25rem 0.5rem;
    border-radius: 6px;
    background: var(--fill-subtle);
  }

  /* Theme filter: full width, smaller padding */
  .puzzle-theme-filter {
    margin-top: 2rem;
  }
  .puzzle-theme-filter select {
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
    max-width: 100%;
    box-sizing: border-box;
  }

  /* Actions: stack vertically, smaller touch targets */
  .puzzle-actions {
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 1rem;
  }
  .puzzle-actions .btn {
    width: 100%;
    padding: 1rem 1.25rem;
    font-size: 0.95rem;
  }

  /* Coach feedback: compact card */
  .puzzle-feedback {
    padding: 0.75rem 0.9rem;
    gap: 0.75rem;
  }
  .puzzle-coach-body {
    gap: 2px;
  }
  .puzzle-feedback-text {
    font-size: 0.88rem;
  }
  .puzzle-feedback-points {
    font-size: 0.72rem;
  }

  /* Stats strip: stack rows on very narrow screens */
  .puzzle-stat-row {
    flex-wrap: wrap;
    gap: 0.25rem;
    padding: 0.5rem 0.75rem;
  }
  .puzzle-stat-label {
    width: 100%;
    order: 1;
    margin-bottom: 0.15rem;
  }
  .puzzle-stat-value {
    order: 2;
    text-align: right;
  }
  .puzzle-stat-row--rating .puzzle-stat-value {
    width: 100%;
    justify-items: start;
  }

  /* Leaderboard: tighter rows on narrow screens */
  .puzzle-leaderboard-panel .leaderboard-row {
    grid-template-columns: 1.5rem 1.7rem minmax(0, 1fr) max-content;
    column-gap: 0.4rem;
    padding: 0.35rem 0.3rem;
  }
  .puzzle-leaderboard-panel .leaderboard-rank {
    width: 1.5rem;
    height: 1.5rem;
    min-width: 1.5rem;
    max-height: 1.5rem;
    font-size: 0.6rem;
  }
  .puzzle-leaderboard-panel .avatar-frame,
  .puzzle-leaderboard-panel .avatar-frame.avatar-frame--sm,
  .puzzle-leaderboard-panel .avatar-frame.avatar-frame--sm[class*="avatar-frame--style-"],
  .puzzle-leaderboard-panel .avatar-frame.avatar-frame--sm.avatar-frame--unlimited {
    --avatar-size: 1.7rem;
    width: 1.7rem !important;
    height: 1.7rem !important;
    min-width: 1.7rem;
    min-height: 1.7rem;
  }
  .puzzle-leaderboard-panel .members-copy strong {
    font-size: 0.76rem;
  }
  .puzzle-leaderboard-panel .members-meta {
    font-size: 0.6rem;
  }
  .puzzle-leaderboard-panel .leaderboard-score {
    font-size: 0.85rem;
  }
  .puzzle-leaderboard-panel .leaderboard-you-line {
    padding: 0.45rem 0.55rem;
  }

  /* Save prompt: tighter on small screens */
  #puzzle-save-prompt .save-progress-card {
    padding: 26px 20px 18px;
    border-radius: 16px;
  }
  #puzzle-save-prompt .save-progress-seal {
    width: 48px;
    height: 48px;
    margin-bottom: 12px;
  }
  #puzzle-save-prompt .save-progress-card h2 {
    font-size: 1.28rem;
  }
  #puzzle-save-prompt .save-progress-perks li {
    padding: 10px 10px;
    font-size: 0.8rem;
  }
  #puzzle-save-prompt .save-progress-actions .btn {
    min-height: 44px;
  }

  /* Toast: smaller on mobile */
  .puzzle-toast {
    padding: 0.6rem 1rem 0.6rem 0.75rem;
    max-width: min(95vw, 28rem);
  }
  .puzzle-toast-icon {
    width: 28px;
    height: 28px;
  }
  .puzzle-toast-copy strong {
    font-size: 0.85rem;
  }
  .puzzle-toast-detail {
    font-size: 0.7rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .puzzle-leaderboard-panel .leaderboard-title-sub::before,
  .puzzle-leaderboard-panel .leaderboard-row.is-up .leaderboard-score,
  #puzzle-rating-display.rating-up,
  #puzzle-rating-display.rating-down,
  #puzzle-save-prompt .save-progress-card,
  .puzzle-intro-backdrop,
  .puzzle-intro-stage,
  .puzzle-intro-seal,
  .puzzle-intro-eyebrow,
  .puzzle-intro-title,
  .puzzle-intro-copy,
  .puzzle-intro-modes,
  .puzzle-intro-play,
  .puzzle-intro-hint,
  .puzzle-board .pz-sq img.is-new,
  .puzzle-board .pz-sq.is-landing.is-last-from::after,
  .puzzle-board .pz-sq.is-landing.is-last-to::after,
  .puzzle-board .pz-sq.is-landing.is-last-to img.is-new,
  .puzzle-board-stage.shake-board,
  .puzzle-board-stage.is-error-rim,
  .puzzle-board-stage.is-celebrate,
  .puzzle-move-seg.is-fill.is-pop,
  .puzzle-fx-sparkle i,
  .puzzle-fx-confetti span,
  .puzzle-loading::before,
  .puzzle-main.is-entry-reveal .puzzle-page-header,
  .puzzle-main.is-entry-reveal .puzzle-layout > * {
    animation: none;
  }
  .puzzle-rating-delta {
    transition: none;
  }
}

.puzzle-why-btn {
  margin-top: 0.45rem;
  font-size: 0.8rem;
  padding: 0.35rem 0.75rem;
}