.sliding-blocks-page {
  --page: #f7f5fb;
  --module: #ffffff;
  --module-soft: #faf9fd;
  --ink: #1c1c21;
  --muted: #706d7a;
  --quiet: #9a96a5;
  --line: #e2ddf0;
  --line-soft: #ece8f5;
  --brand: #5b44e7;
  --brand-ink: #4c38cc;
  --board-bg: #23203a;
  --board-cell: rgba(255,255,255,.024);
  --board-cell-hi: rgba(255,255,255,.034);
  --exit-shadow: rgba(0,0,0,.26);
  --board-radius: 14px;
  --tile-unit: #756f92;
  --tile-wide: #585574;
  --tile-tall: #47405f;
  --tile-border: rgba(255,255,255,.14);
  --tile-hi: rgba(255,255,255,.12);
  --tile-key: #5b3fd6;
  --tile-key-hi: rgba(255,255,255,.13);
  --sh-tile: 0 1px 0 rgba(255,255,255,.12) inset, 0 2px 6px rgba(0,0,0,.28);
  --sh-drag: 0 12px 28px rgba(0,0,0,.42), 0 2px 6px rgba(0,0,0,.22), 0 1px 0 rgba(255,255,255,.06) inset;
  --sh-key: 0 3px 12px rgba(72,48,190,.50), 0 1px 0 rgba(255,255,255,.14) inset;
  --focus: #7c3aed;
  --radius-card: 18px;
  --radius-tile: 8px;
  --cell: 76px;
  --gap: 6px;
  --pad: 12px;
  min-height: 100vh;
  background: var(--page);
  color: var(--ink);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-feature-settings: "cv02", "cv03", "cv04", "cv11";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  line-height: 1.5;
  margin: 0;
  padding-bottom: 3rem;
}

[data-theme="dark"] .sliding-blocks-page {
  --page: #111019;
  --module: #1b1a26;
  --module-soft: #16151f;
  --ink: #f0f0f5;
  --muted: #a8a4b8;
  --quiet: #706c82;
  --line: #302c44;
  --line-soft: #252336;
  --brand: #8975f5;
  --brand-ink: #a99bff;
  --board-bg: #0d0b17;
  --board-cell: rgba(255,255,255,.020);
  --board-cell-hi: rgba(255,255,255,.030);
  --exit-shadow: rgba(0,0,0,.46);
  --tile-unit: #625b7d;
  --tile-wide: #464161;
  --tile-tall: #393353;
  --tile-border: rgba(255,255,255,.12);
  --tile-hi: rgba(255,255,255,.08);
  --tile-key: #6a52e8;
  --tile-key-hi: rgba(255,255,255,.10);
  --sh-tile: 0 1px 0 rgba(255,255,255,.07) inset, 0 2px 7px rgba(0,0,0,.46);
  --sh-drag: 0 14px 32px rgba(0,0,0,.60), 0 2px 8px rgba(0,0,0,.38), 0 1px 0 rgba(255,255,255,.04) inset;
  --sh-key: 0 4px 16px rgba(72,48,190,.55), 0 1px 0 rgba(255,255,255,.09) inset;
}

.sliding-blocks-page *,
.sliding-blocks-page *::before,
.sliding-blocks-page *::after {
  box-sizing: border-box;
}

.sliding-blocks-page button {
  font: inherit;
  -webkit-tap-highlight-color: transparent;
}

.sliding-blocks-page a {
  color: inherit;
  text-decoration: none;
  -webkit-tap-highlight-color: transparent;
}

.sliding-blocks-page .page-main {
  width: min(42rem, calc(100% - 2rem));
  margin-inline: auto;
  padding-top: 6.18rem;
  padding-bottom: 2.45rem;
}

.sliding-blocks-page .pasatiempo-kicker {
  margin-bottom: 0.55rem;
  color: var(--brand-ink);
  font-size: 0.72rem;
  font-weight: 760;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.sliding-blocks-page .page-title {
  margin: 0 0 0.3rem;
  color: var(--ink);
  font-family: "Crimson Pro", Georgia, serif;
  font-size: 2.4rem;
  font-weight: 600;
  line-height: 1.06;
}

.sliding-blocks-page .page-subtitle {
  max-width: 35rem;
  margin: 0 0 1.55rem;
  color: var(--muted);
  font-family: "Crimson Pro", Georgia, serif;
  font-size: 1.08rem;
  font-style: italic;
  line-height: 1.6;
}

.sliding-blocks-page .pasatiempo-stage {
  margin-top: 1.35rem;
}

.sliding-blocks-page .pasatiempo-goal {
  max-width: 560px;
  margin: 0 auto 0.9rem;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.5;
}

.sliding-blocks-page .pasatiempo-note {
  max-width: 560px;
  margin: 1.1rem auto 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.6;
}

.sliding-blocks-page .back-home {
  margin: 1.9rem 0 0;
}

.sliding-blocks-page .back-home a {
  display: inline-flex;
  align-items: center;
  color: var(--brand-ink);
  font-size: 0.88rem;
  font-weight: 650;
}

.sliding-blocks-page .back-home a:hover {
  text-decoration: underline;
  text-underline-offset: 0.18em;
}

.sliding-blocks-page .klotski-widget {
  width: 100%;
  max-width: 560px;
  margin: 0 auto;
}

.sliding-blocks-page .klotski-card {
  background: var(--module);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  padding: 30px 28px 25px;
  box-shadow: 0 1px 3px rgba(0,0,0,.04), 0 4px 16px rgba(0,0,0,.04);
}

[data-theme="dark"] .sliding-blocks-page .klotski-card {
  box-shadow: 0 1px 3px rgba(0,0,0,.18), 0 4px 20px rgba(0,0,0,.18);
}

.sliding-blocks-page .klotski-tabs {
  display: inline-flex;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--line-soft);
}

.sliding-blocks-page .klotski-tab {
  border: 0;
  border-bottom: 2px solid transparent;
  background: transparent;
  color: var(--quiet);
  padding: 6px 14px 8px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .01em;
  cursor: pointer;
  margin-bottom: -1px;
  transition: color .15s, border-color .15s;
}

.sliding-blocks-page .klotski-tab:first-child {
  padding-left: 0;
}

.sliding-blocks-page .klotski-tab[aria-selected="true"] {
  color: var(--ink);
  border-bottom-color: var(--brand);
}

.sliding-blocks-page .klotski-tab:hover:not([aria-selected="true"]) {
  color: var(--muted);
}

.sliding-blocks-page .klotski-board-wrap {
  display: flex;
  justify-content: center;
  margin-bottom: 20px;
}

.sliding-blocks-page .klotski-board-shell {
  position: relative;
  display: inline-block;
  line-height: 0;
  padding-bottom: 12px;
}

.sliding-blocks-page .klotski-board-shell::after {
  content: "";
  position: absolute;
  left: calc(var(--exit-left, 0px) + 10px);
  bottom: 1px;
  width: calc(var(--exit-width, 0px) - 20px);
  height: 4px;
  border-radius: 999px;
  background: var(--tile-key);
  box-shadow: 0 4px 10px rgba(91,63,214,.22);
  opacity: .9;
  pointer-events: none;
}

.sliding-blocks-page .klotski-board {
  position: relative;
  width: calc((var(--cell) * 4) + (var(--gap) * 3) + (var(--pad) * 2));
  height: calc((var(--cell) * 5) + (var(--gap) * 4) + (var(--pad) * 2));
  max-width: 100%;
  background: var(--board-bg);
  border-radius: var(--board-radius);
  box-shadow:
    inset 0 0 0 1px rgba(255,255,255,.055),
    inset 0 1px 0 rgba(255,255,255,.04),
    0 4px 16px rgba(0,0,0,.18);
  touch-action: none;
  user-select: none;
  overflow: hidden;
}

[data-theme="dark"] .sliding-blocks-page .klotski-board {
  box-shadow:
    inset 0 0 0 1px rgba(255,255,255,.045),
    inset 0 1px 0 rgba(255,255,255,.03),
    0 6px 24px rgba(0,0,0,.38);
}

.sliding-blocks-page .klotski-cell {
  position: absolute;
  left: calc(var(--pad) + (var(--cx) * (var(--cell) + var(--gap))));
  top: calc(var(--pad) + (var(--cy) * (var(--cell) + var(--gap))));
  width: var(--cell);
  height: var(--cell);
  border-radius: calc(var(--radius-tile) - 3px);
  background:
    linear-gradient(145deg, var(--board-cell-hi) 0%, transparent 64%),
    var(--board-cell);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.018),
    inset 0 10px 16px rgba(255,255,255,.006),
    inset 0 -1px 0 rgba(0,0,0,.070);
  opacity: .92;
  pointer-events: none;
  z-index: 0;
}

.sliding-blocks-page .klotski-exit-slot {
  position: absolute;
  left: var(--exit-left);
  bottom: 0;
  width: var(--exit-width);
  height: 10px;
  border-radius: 0;
  background:
    linear-gradient(90deg, var(--exit-shadow), transparent 18%, transparent 82%, var(--exit-shadow)),
    linear-gradient(180deg, rgba(255,255,255,.012), rgba(0,0,0,.16));
  box-shadow:
    inset 7px 0 10px rgba(0,0,0,.12),
    inset -7px 0 10px rgba(0,0,0,.12);
  pointer-events: none;
  z-index: 1;
}

.sliding-blocks-page .klotski-piece {
  position: absolute;
  left: calc(var(--pad) + (var(--x) * (var(--cell) + var(--gap))));
  top: calc(var(--pad) + (var(--y) * (var(--cell) + var(--gap))));
  width: calc((var(--w) * var(--cell)) + ((var(--w) - 1) * var(--gap)));
  height: calc((var(--h) * var(--cell)) + ((var(--h) - 1) * var(--gap)));
  border: 1px solid var(--tile-border);
  border-radius: var(--radius-tile);
  display: grid;
  place-items: center;
  cursor: grab;
  z-index: 2;
  will-change: transform;
  transition: left .13s ease, top .13s ease, transform .12s cubic-bezier(.2,.8,.2,1), box-shadow .15s ease, filter .12s ease;
  -webkit-tap-highlight-color: transparent;
}

.sliding-blocks-page .klotski-piece:hover {
  filter: brightness(1.14);
}

.sliding-blocks-page .klotski-piece:active {
  cursor: grabbing;
}

.sliding-blocks-page .klotski-piece.is-dragging {
  transition: none;
  z-index: 6;
  box-shadow: var(--sh-drag) !important;
  filter: brightness(1.20);
}

.sliding-blocks-page .klotski-piece.is-snapping {
  transition: transform .11s cubic-bezier(.18,.82,.23,1), box-shadow .15s ease, filter .12s ease;
  z-index: 6;
  box-shadow: var(--sh-drag) !important;
  filter: brightness(1.12);
}

.sliding-blocks-page .piece-unit {
  background:
    linear-gradient(145deg, var(--tile-hi) 0%, transparent 55%),
    var(--tile-unit);
  box-shadow: var(--sh-tile);
}

.sliding-blocks-page .piece-wide {
  background:
    linear-gradient(135deg, var(--tile-hi) 0%, transparent 50%),
    var(--tile-wide);
  box-shadow: var(--sh-tile);
}

.sliding-blocks-page .piece-tall {
  background:
    linear-gradient(170deg, var(--tile-hi) 0%, transparent 45%),
    var(--tile-tall);
  box-shadow: var(--sh-tile);
}

.sliding-blocks-page .piece-key {
  border-color: rgba(255,255,255,.14);
  background:
    linear-gradient(145deg, var(--tile-key-hi) 0%, transparent 50%),
    var(--tile-key);
  box-shadow: var(--sh-key);
  color: #fff;
}

.sliding-blocks-page .piece-key:hover {
  filter: brightness(1.10);
}

.sliding-blocks-page .piece-key .key-logo {
  width: 38%;
  height: 38%;
  display: block;
}

.sliding-blocks-page .visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0,0,0,0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.sliding-blocks-page .klotski-footer {
  border-top: 1px solid var(--line-soft);
  padding-top: 16px;
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-rows: auto auto;
  gap: 12px 16px;
  align-items: center;
}

.sliding-blocks-page .klotski-meta {
  display: flex;
  gap: 24px;
}

.sliding-blocks-page .klotski-stat {
  display: grid;
  gap: 3px;
}

.sliding-blocks-page .klotski-stat-label {
  color: var(--quiet);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .11em;
  text-transform: uppercase;
}

.sliding-blocks-page .klotski-stat-value {
  color: var(--ink);
  font-size: 19px;
  font-weight: 760;
  letter-spacing: -.03em;
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.sliding-blocks-page .klotski-controls {
  display: flex;
  align-items: center;
  gap: 4px;
}

.sliding-blocks-page .klotski-btn {
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 13px;
  font-weight: 620;
  padding: 4px 6px;
  transition: color .14s, background .14s;
}

.sliding-blocks-page .klotski-btn:hover:not(:disabled) {
  color: var(--ink);
  background: var(--line-soft);
}

.sliding-blocks-page .klotski-btn:disabled {
  color: var(--quiet);
  opacity: .34;
  cursor: default;
}

.sliding-blocks-page .klotski-btn-sep {
  color: var(--line);
  font-size: 13px;
  user-select: none;
}

.sliding-blocks-page .klotski-status {
  grid-column: 1 / -1;
  min-height: 20px;
  color: var(--quiet);
  font-size: 13px;
  line-height: 1.5;
}

.sliding-blocks-page .klotski-status.is-win {
  color: var(--brand-ink);
  font-weight: 620;
}

[data-theme="dark"] .sliding-blocks-page .klotski-status.is-win {
  color: var(--brand);
}

.sliding-blocks-page .klotski-error {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--module-soft);
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
}

.sliding-blocks-page .klotski-tab:focus-visible,
.sliding-blocks-page .klotski-btn:focus-visible,
.sliding-blocks-page .klotski-piece:focus-visible,
.sliding-blocks-page .back-home a:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--focus) 65%, transparent);
  outline-offset: 2px;
}

.sliding-blocks-page .site-footer-std {
  width: min(42rem, calc(100% - 2rem));
  margin: 0 auto;
  padding: 0 0 2rem;
  color: var(--quiet);
  font-size: 0.78rem;
}

@media (max-width: 600px) {
  .sliding-blocks-page .page-main {
    width: min(100% - 1.5rem, 42rem);
    padding-top: 6.05rem;
    padding-bottom: 2.35rem;
  }

  .sliding-blocks-page .page-title {
    font-size: 2.08rem;
  }

  .sliding-blocks-page .klotski-card {
    padding: 22px 18px 20px;
  }

  .sliding-blocks-page .klotski-footer {
    grid-template-columns: 1fr;
  }

  .sliding-blocks-page .klotski-controls {
    justify-content: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .sliding-blocks-page .klotski-piece,
  .sliding-blocks-page .klotski-tab,
  .sliding-blocks-page .klotski-btn {
    transition: none;
  }
}