:root {
  --bg-start: #f0e8e1;
  --bg-end: #e9dfe8;
  --surface-start: #f5f1ec;
  --surface-end: #ebe3da;
  --text: #4a352e;
  --text-soft: rgba(74, 53, 46, 0.78);
  --accent: #e85f9a;
  --accent-strong: #d94a87;
  --hud-glow: rgba(232, 95, 154, 0.2);
  --mr-rush-a: #e54d8a;
  --mr-rush-b: #52b8e0;
  --qs-glow-strength: 0.78;
  --spark: rgba(235, 175, 128, 0.32);
  --radius-card: 24px;
  --radius-tile: 18px;
  --shadow-card: 0 12px 26px rgba(74, 52, 44, 0.16);
  --shadow-tile: 0 7px 0 rgba(74, 52, 44, 0.2), 0 12px 18px rgba(74, 52, 44, 0.14);
  --ring-default: rgba(232, 224, 216, 0.48);
  --dur-fast: 150ms;
  --dur-mid: 220ms;
  --dur-slow: 360ms;
  --ease-pop: cubic-bezier(0.22, 0.82, 0.24, 1);
  --ease-spring: cubic-bezier(0.18, 0.92, 0.28, 1.04);
}

* {
  box-sizing: border-box;
  -webkit-user-select: none;
  user-select: none;
}

html,
body {
  margin: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

body {
  font-family: "Avenir Next", "Trebuchet MS", "Segoe UI", sans-serif;
  background:
    radial-gradient(130% 96% at -8% -12%, rgba(242, 236, 228, 0.92) 0%, rgba(255, 255, 255, 0) 58%),
    radial-gradient(90% 70% at 108% 5%, rgba(222, 198, 186, 0.55) 0%, rgba(255, 228, 215, 0) 65%),
    linear-gradient(145deg, var(--bg-start), var(--bg-end));
  color: var(--text);
  animation: bgShift 14s ease-in-out infinite alternate;
  position: relative;
}

body::before,
body::after {
  content: "";
  position: fixed;
  pointer-events: none;
  z-index: 0;
  border-radius: 999px;
  opacity: 0.2;
  mix-blend-mode: screen;
}

body::before {
  width: min(56vw, 340px);
  height: min(56vw, 340px);
  left: -8%;
  top: 12%;
  background: radial-gradient(circle, rgba(220, 130, 168, 0.38) 0%, rgba(220, 130, 168, 0) 70%);
  animation: driftA 16s ease-in-out infinite alternate;
}

body::after {
  width: min(48vw, 300px);
  height: min(48vw, 300px);
  right: -10%;
  bottom: 8%;
  background: radial-gradient(circle, rgba(100, 188, 218, 0.34) 0%, rgba(100, 188, 218, 0) 72%);
  animation: driftB 18s ease-in-out infinite alternate;
}

/* Match quick-sort: Rush centered, score + pause top-right (pause row 2) */
#hud {
  position: fixed;
  top: 58px;
  left: calc(20px + env(safe-area-inset-left, 0px));
  right: calc(20px + env(safe-area-inset-right, 0px));
  z-index: 20;
  pointer-events: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1fr);
  grid-template-rows: auto auto;
  row-gap: 4px;
  align-items: start;
  text-align: initial;
}

#hud-spacer {
  grid-column: 1;
  grid-row: 1;
  min-width: 0;
  pointer-events: none;
}

#hud-score-area {
  grid-column: 3;
  grid-row: 1;
  justify-self: end;
  text-align: right;
  pointer-events: none;
}

#pause-wrap {
  grid-column: 3;
  grid-row: 2;
  justify-self: end;
  align-self: start;
  position: relative;
  pointer-events: auto;
}

#pause-btn {
  width: 36px;
  height: 36px;
  border-radius: 18px;
  border: 1px solid rgba(74, 53, 46, 0.16);
  background: linear-gradient(180deg, rgba(248, 244, 240, 0.96), rgba(235, 226, 218, 0.92));
  box-shadow: 0 4px 12px rgba(74, 52, 44, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  cursor: pointer;
  color: var(--text);
  -webkit-tap-highlight-color: transparent;
}

#pause-btn:active {
  transform: scale(0.96);
  opacity: 0.92;
}

#pause-btn .icon-play {
  display: none;
}

#pause-btn.is-paused .icon-pause {
  display: none;
}

#pause-btn.is-paused .icon-play {
  display: block;
}

/* Opaque pause veil: hides the board so players cannot study tiles while frozen. HUD stays above (z-index 20). */
.mr-pause-overlay {
  position: fixed;
  inset: 0;
  z-index: 19;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: auto;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  background:
    radial-gradient(ellipse 85% 55% at 50% 42%, rgba(255, 255, 255, 0.2) 0%, transparent 52%),
    linear-gradient(145deg, var(--bg-start), var(--bg-end));
  -webkit-backdrop-filter: blur(28px) saturate(0.88);
  backdrop-filter: blur(28px) saturate(0.88);
}

.mr-pause-overlay[hidden] {
  display: none !important;
}

.mr-pause-overlay__text {
  font-weight: 800;
  font-size: clamp(1.25rem, 4vw, 1.5rem);
  letter-spacing: 0.2em;
  color: var(--text-soft);
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.55);
}

#mr-challenge {
  --qs-rush-a: var(--mr-rush-a);
  --qs-rush-b: var(--mr-rush-b);
}

.qs-challenge {
  flex: 0 1 auto;
  max-width: min(46vw, 200px);
  pointer-events: none;
  font-family: inherit;
}

#hud .qs-challenge:not(.qs-challenge--hidden) {
  position: absolute;
  left: 50%;
  top: 0;
  transform: translateX(-50%);
  z-index: 21;
}

.qs-challenge--hidden {
  display: none !important;
}

.qs-challenge__inner {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 6px 10px 8px;
  border-radius: 12px;
  background: linear-gradient(145deg, rgba(248, 244, 240, 0.95), rgba(236, 228, 220, 0.92));
  border: 1px solid rgba(217, 74, 135, 0.32);
  box-shadow:
    0 0 0 1px rgba(74, 53, 46, 0.07),
    0 8px 22px rgba(74, 52, 44, 0.12),
    inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

.qs-challenge__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  line-height: 1.1;
}

.qs-challenge__row--title .qs-challenge__label {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.qs-challenge__bolt {
  flex-shrink: 0;
  color: #f59e0b;
  opacity: 0.95;
  filter: drop-shadow(0 0 4px rgba(245, 158, 11, 0.35));
}

.qs-challenge__label {
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-strong);
}

.qs-challenge__remain {
  font-size: clamp(1rem, 3.2vw, 1.2rem);
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  color: #c23d7a;
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.45);
}

.qs-challenge__timer {
  --qs-ring-pct: 100;
  position: relative;
  margin: 2px auto 0;
  width: clamp(48px, 12vw, 58px);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border-radius: 50%;
}

.qs-challenge__ring {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background:
    conic-gradient(
      from -90deg,
      var(--qs-rush-a) 0 calc(var(--qs-ring-pct) * 1%),
      rgba(228, 222, 216, 0.55) calc(var(--qs-ring-pct) * 1%) 100%
    );
  box-shadow:
    0 0 12px rgba(229, 77, 138, calc(0.22 * var(--qs-glow-strength))),
    inset 0 0 0 1px rgba(255, 255, 255, 0.35);
}

.qs-challenge__ring::after {
  content: "";
  position: absolute;
  inset: 5px;
  border-radius: inherit;
  background: linear-gradient(145deg, rgba(246, 242, 238, 0.96), rgba(234, 226, 218, 0.94));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

.qs-challenge__time {
  position: relative;
  z-index: 1;
  font-size: clamp(0.92rem, 3.1vw, 1.05rem);
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  color: var(--text);
  text-align: center;
  line-height: 1;
  letter-spacing: -0.01em;
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.42);
}

.qs-challenge--warn .qs-challenge__inner {
  border-color: rgba(245, 158, 11, 0.5);
  box-shadow:
    0 0 0 1px rgba(84, 58, 49, 0.08),
    0 8px 24px rgba(245, 158, 11, 0.15),
    inset 0 1px 0 rgba(255, 255, 255, 0.55);
}

.qs-challenge--warn .qs-challenge__time {
  color: #b45309;
  animation: qs-rush-pulse 0.9s ease-in-out infinite;
}

.qs-challenge--warn .qs-challenge__ring {
  background:
    conic-gradient(
      from -90deg,
      #fbbf24 0 calc(var(--qs-ring-pct) * 1%),
      rgba(228, 222, 216, 0.55) calc(var(--qs-ring-pct) * 1%) 100%
    );
  box-shadow:
    0 0 14px rgba(220, 165, 48, 0.28),
    inset 0 0 0 1px rgba(255, 255, 255, 0.35);
}

.qs-challenge--critical .qs-challenge__inner {
  border-color: rgba(248, 113, 113, 0.55);
  box-shadow:
    0 0 0 1px rgba(84, 58, 49, 0.08),
    0 0 16px rgba(239, 68, 68, 0.2),
    0 8px 24px rgba(107, 70, 56, 0.14),
    inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

.qs-challenge--critical .qs-challenge__time {
  color: #b91c1c;
  animation: qs-rush-pulse 0.45s ease-in-out infinite;
}

.qs-challenge--critical .qs-challenge__ring {
  background:
    conic-gradient(
      from -90deg,
      #fb7185 0 calc(var(--qs-ring-pct) * 1%),
      rgba(228, 222, 216, 0.55) calc(var(--qs-ring-pct) * 1%) 100%
    );
  box-shadow:
    0 0 16px rgba(200, 58, 58, 0.32),
    inset 0 0 0 1px rgba(255, 255, 255, 0.35);
}

@keyframes qs-rush-pulse {
  0%, 100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.03);
    opacity: 0.92;
  }
}

#score-wrap {
  min-width: 6ch;
  font-size: clamp(2.5rem, 7vw, 3.25rem);
  font-weight: 900;
  font-variant-numeric: tabular-nums;
  text-align: center;
  color: var(--text);
  text-shadow: 0 2px 0 rgba(255, 255, 255, 0.4), 0 2px 10px rgba(74, 52, 44, 0.2);
  letter-spacing: -0.03em;
  line-height: 1;
  transition: transform 0.16s ease, text-shadow 0.16s ease;
}

#score {
  display: inline-block;
}

#score-wrap.bump {
  animation: hudBump var(--dur-mid) var(--ease-spring);
}

#score-wrap.bump-strong {
  animation: hudBumpStrong 300ms var(--ease-spring);
}

.game-shell {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  height: 100%;
  padding: 14px;
  padding-top: clamp(62px, 11dvh, 96px);
  display: grid;
  grid-template-rows: 1fr;
  gap: 0;
  align-items: start;
}

.card {
  background: linear-gradient(180deg, var(--surface-start), var(--surface-end));
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(74, 52, 44, 0.12);
}

.stage {
  position: relative;
  overflow: hidden;
  padding: 8px 6px;
  width: 100%;
  max-width: 100%;
  margin: 0 auto;
  height: fit-content;
  min-width: 0;
  display: block;
  place-self: center;
}

.board-area {
  min-width: 0;
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: flex-start;
}

.board {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  aspect-ratio: 1 / 1;
  height: auto;
  margin: 0;
  padding: 1px;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  grid-template-rows: repeat(5, minmax(0, 1fr));
  gap: 8px;
  contain: layout paint style;
  position: relative;
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(238, 232, 226, 0.55), rgba(222, 208, 196, 0.28));
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.22);
  transform: translateZ(0);
  will-change: transform, filter;
}

.board.round-pop {
  animation: boardRoundPop 420ms ease-out;
}

.board.sweet-move {
  animation: sweetMove 160ms ease-out;
}

.board.combo-mid {
  animation: comboPulseMid 230ms ease-out;
}

.board.combo-high {
  animation: comboPulseHigh 300ms ease-out;
}

.burst-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: visible;
  z-index: 5;
}

.tile {
  --tile-base: #d9a0a6;
  --tile-outline: rgba(240, 234, 230, 0.55);
  --tile-glow: rgba(210, 130, 160, 0.32);
  border: 0;
  border-radius: var(--radius-tile);
  min-width: 0;
  min-height: 0;
  width: 100%;
  height: 100%;
  padding: 0;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(68% 48% at 24% 16%, rgba(255, 255, 255, 0.38) 0%, rgba(255, 255, 255, 0) 84%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.2) 0%, rgba(255, 255, 255, 0) 36%),
    linear-gradient(180deg, rgba(0, 0, 0, 0) 58%, rgba(0, 0, 0, 0.14) 100%),
    var(--tile-base);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.45),
    inset 0 -7px 0 rgba(0, 0, 0, 0.12),
    inset 0 0 0 1px var(--tile-outline),
    0 0 0 1px rgba(255, 255, 255, 0.22),
    var(--shadow-tile),
    0 0 0 0 var(--tile-glow);
  transform: translate3d(0, 0, 0) scale(1);
  opacity: 1;
  z-index: 1;
  will-change: transform, opacity, filter;
  transition: transform var(--dur-fast) var(--ease-spring), filter var(--dur-fast) ease, opacity 120ms ease, box-shadow var(--dur-fast) ease;
}

.tile::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(118deg, rgba(255, 255, 255, 0.12) 0%, rgba(255, 255, 255, 0) 45%);
  pointer-events: none;
  z-index: 2;
}

.tile::before {
  content: "";
  position: absolute;
  inset: 8%;
  border-radius: 13px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  opacity: 0.6;
  pointer-events: none;
}

.tile.tile--ruby,
.tile.tile--green,
.tile.tile--gem,
.tile.tile--medal,
.tile.tile--amber {
  background: transparent;
  box-shadow: none;
}

.tile.tile--ruby::after,
.tile.tile--green::after,
.tile.tile--gem::after,
.tile.tile--medal::after,
.tile.tile--amber::after {
  display: none;
}

.tile__ruby,
.tile__green,
.tile__gem,
.tile__medal,
.tile__amber {
  display: none;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 82%;
  height: 82%;
  object-fit: contain;
  pointer-events: none;
  z-index: 1;
  filter: drop-shadow(0 2px 4px rgba(74, 52, 44, 0.18));
}

/* Ruby SVG has more visual mass in its viewBox; scale down to match other pieces */
.tile__ruby {
  width: 68%;
  height: 68%;
}

/* sketch-svgrepo-com.svg (orange slot) has loose viewBox padding */
.tile__amber {
  width: 96%;
  height: 96%;
}

.tile--ruby .tile__ruby,
.tile--green .tile__green,
.tile--gem .tile__gem,
.tile--medal .tile__medal,
.tile--amber .tile__amber {
  display: block;
}

.tile--ruby::before,
.tile--green::before,
.tile--gem::before,
.tile--medal::before,
.tile--amber::before {
  opacity: 0;
}

.tile.tile--ruby.sel,
.tile.tile--green.sel,
.tile.tile--gem.sel,
.tile.tile--medal.sel,
.tile.tile--amber.sel {
  animation: selectedPulseGem 780ms ease-in-out infinite;
}

.tile.tile--ruby.match::before,
.tile.tile--green.match::before,
.tile.tile--gem.match::before,
.tile.tile--medal.match::before,
.tile.tile--amber.match::before {
  box-shadow: 0 0 20px rgba(255, 255, 255, 0.55);
}

@keyframes selectedPulseGem {
  0%,
  100% {
    box-shadow: 0 0 0 0 rgba(232, 95, 154, 0);
  }
  50% {
    box-shadow: 0 0 0 10px rgba(232, 95, 154, 0.14);
  }
}

.tile.sel {
  outline: 2px solid rgba(240, 236, 232, 0.75);
  transform: scale(0.93);
  filter: saturate(1.06) brightness(1.02);
  animation: selectedPulse 780ms ease-in-out infinite;
}

.tile.swap {
  animation: tileSwap 165ms var(--ease-spring);
}

.tile.match {
  z-index: 3;
  overflow: visible;
  animation: tileMatchPop var(--dur-mid) var(--ease-pop) both;
}

.tile.match::before {
  inset: -20%;
  border-radius: 50%;
  border: 2px solid rgba(248, 244, 240, 0.65);
  box-shadow: 0 0 18px var(--tile-glow);
  animation: popRing 240ms ease-out both;
}

.tile.invalid {
  animation: tileInvalid 220ms ease;
}

.tile.spawn {
  animation: tileSpawn 220ms var(--ease-pop);
}

.tile.fall,
.tile.spawn-fall {
  transition-property: none;
}

.tile.fall {
  transform: translate3d(0, var(--fall-from, 0px), 0);
  opacity: 0.98;
}

.tile.spawn-fall {
  transform: translate3d(0, var(--spawn-from, 0px), 0) scale(0.94);
  opacity: 0.84;
  filter: saturate(0.92);
}

.tile.fall.fall-go,
.tile.spawn-fall.fall-go {
  transform: translate3d(0, 0, 0) scale(1);
  opacity: 1;
  filter: saturate(1);
  transition-property: transform, opacity, filter;
  transition-duration: var(--fall-duration, 165ms);
  transition-delay: var(--fall-delay, 0ms);
  transition-timing-function: var(--fall-ease, cubic-bezier(0.26, 0.9, 0.32, 1));
}

.tile.land {
  animation: tileLand 78ms cubic-bezier(0.26, 0.9, 0.32, 1);
}

.burst {
  position: absolute;
  width: 0;
  height: 0;
  transform: translate(-50%, -50%);
}

.burst::before {
  content: "";
  position: absolute;
  width: var(--core-size, 18px);
  height: var(--core-size, 18px);
  left: calc(var(--core-size, 18px) * -0.5);
  top: calc(var(--core-size, 18px) * -0.5);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(252, 248, 244, 0.85), var(--burst-color, #f0ebe6) 62%, rgba(255, 255, 255, 0) 78%);
  animation: burstCore var(--burst-life, 320ms) ease-out both;
}

.burst.kind-combo::before {
  box-shadow: 0 0 18px rgba(248, 244, 240, 0.45), 0 0 26px var(--burst-color, #e8e2dc);
}

.burst.kind-spawn::before {
  opacity: 0.82;
}

.burst-dot {
  position: absolute;
  width: var(--dot-size, 5px);
  height: var(--dot-size, 5px);
  left: calc(var(--dot-size, 5px) * -0.5);
  top: calc(var(--dot-size, 5px) * -0.5);
  border-radius: 999px;
  background: var(--burst-color, #fff);
  box-shadow: 0 0 7px rgba(240, 234, 228, 0.5);
  animation: burstDot var(--burst-life, 320ms) var(--ease-pop) both;
}

@keyframes bgShift {
  from { background-position: 0% 0%, 100% 5%, 0% 0%; }
  to { background-position: 8% -8%, 94% 12%, 0% 0%; }
}

@keyframes driftA {
  from { transform: translate3d(0, 0, 0); }
  to { transform: translate3d(12px, -8px, 0); }
}

@keyframes driftB {
  from { transform: translate3d(0, 0, 0); }
  to { transform: translate3d(-14px, 10px, 0); }
}

@keyframes tileSpawn {
  from { transform: translate3d(0, 12px, 0) scale(0.84); opacity: 0; filter: saturate(0.9); }
  to { transform: translate3d(0, 0, 0) scale(1); opacity: 1; filter: saturate(1); }
}

@keyframes tileSwap {
  0% { transform: scale(1); }
  55% { transform: scale(1.11); }
  100% { transform: scale(1); }
}

@keyframes tileLand {
  0% { transform: scaleX(1.04) scaleY(0.94); }
  100% { transform: scaleX(1) scaleY(1); }
}

@keyframes tileMatchPop {
  0% { transform: scale(1); filter: brightness(1); }
  40% { transform: scale(1.18); filter: brightness(1.12); }
  68% { transform: scale(0.95); filter: brightness(1.08); }
  100% { transform: scale(0.54); opacity: 0; filter: brightness(1.03); }
}

@keyframes popRing {
  0% { transform: scale(0.38); opacity: 0.95; }
  100% { transform: scale(1.18); opacity: 0; }
}

@keyframes burstCore {
  0% { transform: scale(0.46); opacity: 0.98; }
  100% { transform: scale(1.74); opacity: 0; }
}

@keyframes burstDot {
  0% { transform: translate(0, 0) scale(0.94); opacity: 0.96; }
  100% { transform: translate(var(--dx, 0), var(--dy, 0)) scale(0.2); opacity: 0; }
}

@keyframes tileInvalid {
  0%,
  100% { transform: translateX(0); }
  25% { transform: translateX(-6%); }
  75% { transform: translateX(6%); }
}

@keyframes selectedPulse {
  0%,
  100% {
    box-shadow:
      inset 0 1px 0 rgba(255, 255, 255, 0.45),
      inset 0 -7px 0 rgba(0, 0, 0, 0.12),
      inset 0 0 0 1px var(--tile-outline),
      0 0 0 1px rgba(255, 255, 255, 0.22),
      var(--shadow-tile),
      0 0 0 0 rgba(232, 95, 154, 0);
  }
  50% {
    box-shadow:
      inset 0 1px 0 rgba(255, 255, 255, 0.45),
      inset 0 -7px 0 rgba(0, 0, 0, 0.12),
      inset 0 0 0 1px var(--tile-outline),
      0 0 0 1px rgba(255, 255, 255, 0.22),
      var(--shadow-tile),
      0 0 0 8px rgba(232, 95, 154, 0.16);
  }
}

@keyframes hudBump {
  0% { transform: scale(1); filter: saturate(1); }
  50% { transform: scale(1.13); filter: saturate(1.24); text-shadow: 0 0 10px var(--hud-glow); }
  100% { transform: scale(1); filter: saturate(1); }
}

@keyframes hudBumpStrong {
  0% { transform: scale(1); filter: saturate(1); }
  38% { transform: scale(1.2); filter: saturate(1.22); text-shadow: 0 0 16px rgba(232, 95, 154, 0.32); }
  100% { transform: scale(1); filter: saturate(1); }
}

@keyframes boardRoundPop {
  0% { transform: scale(0.96); filter: brightness(1); }
  50% { transform: scale(1.02); filter: brightness(1.04); }
  100% { transform: scale(1); filter: brightness(1); }
}

@keyframes sweetMove {
  0% { filter: saturate(1); transform: scale(1); }
  50% { filter: saturate(1.14); transform: scale(1.01); }
  100% { filter: saturate(1); transform: scale(1); }
}

@keyframes comboPulseMid {
  0% { transform: scale(1); filter: brightness(1); }
  50% { transform: scale(1.015); filter: brightness(1.04); }
  100% { transform: scale(1); filter: brightness(1); }
}

@keyframes comboPulseHigh {
  0% { transform: scale(1); filter: brightness(1); }
  30% { transform: scale(1.022); filter: brightness(1.06) saturate(1.05); }
  100% { transform: scale(1); filter: brightness(1); }
}

body.fx-lite {
  --shadow-card: 0 8px 16px rgba(107, 70, 56, 0.11);
  --shadow-tile: 0 5px 0 rgba(101, 66, 52, 0.14), 0 8px 11px rgba(101, 66, 52, 0.1);
}

body.fx-lite::before,
body.fx-lite::after {
  opacity: 0.12;
}

body.fx-lite .tile,
body.fx-lite .board,
body.fx-lite #score-wrap {
  animation-duration: calc(var(--dur-mid) * 0.85);
}

body.fx-lite .burst-dot {
  box-shadow: none;
}

body.fx-lite .tile.land {
  animation: none;
}

@media (max-height: 860px) {
  .game-shell {
    padding-top: clamp(56px, 9dvh, 82px);
  }

  #score-wrap {
    font-size: clamp(2.2rem, 6.2vw, 2.9rem);
  }

  .qs-challenge {
    max-width: min(44vw, 184px);
  }
}

@media (max-height: 760px) {
  .game-shell {
    padding-top: clamp(50px, 8dvh, 68px);
  }
}

@media (prefers-reduced-motion: reduce) {
  body,
  body::before,
  body::after,
  .tile,
  .tile::before,
  .tile.fall,
  .tile.spawn-fall,
  .tile.land,
  #score-wrap,
  .qs-challenge__time,
  .board,
  .burst::before,
  .burst-dot {
    animation: none !important;
    transition: none !important;
  }

  .burst,
  .burst::before,
  .burst-dot {
    display: none !important;
  }
}