/* ============================================================
   WHAC-A-GEM — style.css  v2
   AlphaGems Crystal Hunt
   ============================================================ */

/* ---- RESET & VARS ---- */
:root {
  --gem:    #a855f7;
  --gem2:   #7c3aed;
  --gem3:   #6366f1;
  --gold:   #f59e0b;
  --cyan:   #06b6d4;
  --pink:   #ec4899;
  --green:  #10b981;
  --red:    #ef4444;
  --dark:   #03030d;
  --dark2:  #07071a;
  --glow-gem:  0 0 20px #a855f7, 0 0 50px #7c3aed, 0 0 100px #4f1d96;
  --glow-gold: 0 0 20px #f59e0b, 0 0 50px #d97706;
  --glow-cyan: 0 0 15px #06b6d4, 0 0 35px #0891b2;
  --glow-red:  0 0 20px #ef4444, 0 0 40px #dc2626;
  --font-title: 'Cinzel Decorative', serif;
  --font-mono:  'Orbitron', monospace;
  --font-body:  'Rajdhani', sans-serif;
}

*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { height:100%; }

body {
  background: var(--dark);
  color: #fff;
  font-family: var(--font-body);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  overflow-x: hidden;
  /* Prevent text selection during gameplay */
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}

/* ============================================================
   LOADING SCREEN
   ============================================================ */
#loading-screen {
  position: fixed; inset: 0; z-index: 1000;
  background: radial-gradient(ellipse at 50% 40%, #0e0530 0%, #03030d 70%);
  display: flex; align-items: center; justify-content: center;
  flex-direction: column;
  transition: opacity .8s ease, visibility .8s ease;
}
#loading-screen.fade-out {
  opacity: 0; visibility: hidden; pointer-events: none;
}
#loading-particles {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
}
.loading-content {
  position: relative; z-index: 1;
  display: flex; flex-direction: column; align-items: center;
  gap: 0;
}

#loading-gem {
  width: 120px; height: 120px;
  object-fit: contain;
  /* key fix: screen blend removes black bg completely */
  mix-blend-mode: screen;
  filter: drop-shadow(0 0 40px rgba(168,85,247,1)) drop-shadow(0 0 80px rgba(124,58,237,.8));
  animation: loadGemSpin 2.5s ease-in-out infinite, gemFloat 3s ease-in-out infinite;
  margin-bottom: 20px;
}
@keyframes loadGemSpin {
  0%,100%{ transform: scale(1) rotate(-5deg); }
  25%    { transform: scale(1.1) rotate(5deg); }
  50%    { transform: scale(1.15) rotate(-3deg); }
  75%    { transform: scale(1.05) rotate(4deg); }
}
@keyframes gemFloat {
  0%,100%{ filter: drop-shadow(0 0 40px rgba(168,85,247,1)) drop-shadow(0 0 80px rgba(124,58,237,.8)); }
  50%    { filter: drop-shadow(0 0 60px rgba(168,85,247,1)) drop-shadow(0 0 120px rgba(99,102,241,1)) brightness(1.2); }
}

.loading-title {
  font-family: var(--font-title);
  font-size: clamp(32px, 8vw, 58px);
  font-weight: 900;
  background: linear-gradient(135deg, #fbbf24, #a855f7, #06b6d4, #ec4899);
  background-size: 300% 300%;
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: titleGrad 3s ease infinite, titleReveal 1s .2s both;
  letter-spacing: 3px;
}
@keyframes titleReveal {
  from{ opacity:0; transform:translateY(20px) scale(.9); }
  to  { opacity:1; transform:translateY(0) scale(1); }
}
@keyframes titleGrad {
  0%{background-position:0% 50%}50%{background-position:100% 50%}100%{background-position:0% 50%}
}

.loading-sub {
  font-family: var(--font-mono);
  font-size: clamp(10px, 2.5vw, 14px);
  letter-spacing: 6px;
  color: var(--cyan);
  margin-top: 6px;
  animation: subReveal 1s .5s both, subPulse 2.5s 1.5s ease-in-out infinite;
}
@keyframes subReveal { from{opacity:0;letter-spacing:12px} to{opacity:1;letter-spacing:6px} }
@keyframes subPulse  { 0%,100%{opacity:.6} 50%{opacity:1;text-shadow:0 0 15px var(--cyan)} }

.loading-bar-wrap {
  width: clamp(200px, 60vw, 320px);
  height: 6px;
  background: rgba(255,255,255,.07);
  border-radius: 50px;
  margin-top: 28px;
  overflow: hidden;
  border: 1px solid rgba(168,85,247,.2);
}
.loading-bar {
  height: 100%; width: 0%; border-radius: 50px;
  background: linear-gradient(90deg, #7c3aed, #a855f7, #06b6d4);
  background-size: 200% 100%;
  animation: pbShimmer 1.5s linear infinite;
  transition: width .3s ease;
}
.loading-text {
  font-family: var(--font-mono);
  font-size: 11px; color: #444; letter-spacing: 2px;
  margin-top: 12px;
  animation: textBlink 1.5s ease-in-out infinite;
}
@keyframes textBlink { 0%,100%{opacity:.4} 50%{opacity:1} }

/* ============================================================
   CANVASES
   ============================================================ */
#bg-canvas,
#particle-canvas {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
}
#particle-canvas { z-index: 999; }

/* ============================================================
   FRENZY FLASH
   ============================================================ */
#frenzy-flash {
  position: fixed; inset: 0; z-index: 150;
  pointer-events: none; opacity: 0;
  background: radial-gradient(ellipse, rgba(168,85,247,.3) 0%, transparent 72%);
  transition: opacity .5s;
}
#frenzy-flash.active {
  opacity: 1;
  animation: frenzyPulse .9s ease-in-out infinite alternate;
}
@keyframes frenzyPulse {
  0%  { opacity:.3; background:radial-gradient(ellipse,rgba(168,85,247,.3) 0%,transparent 72%); }
  100%{ opacity:.9; background:radial-gradient(ellipse,rgba(168,85,247,.5) 0%,rgba(245,158,11,.15) 50%,transparent 72%); }
}

/* ============================================================
   MUSIC BUTTON
   ============================================================ */
.music-btn {
  position: fixed; top: 14px; right: 14px; z-index: 300;
  width: 44px; height: 44px; border-radius: 50%;
  background: rgba(168,85,247,.15);
  border: 1.5px solid rgba(168,85,247,.4);
  color: white; font-size: 20px;
  cursor: pointer; backdrop-filter: blur(8px);
  transition: all .25s;
  display: flex; align-items: center; justify-content: center;
  -webkit-tap-highlight-color: transparent;
}
.music-btn:hover, .music-btn:active {
  background: rgba(168,85,247,.35);
  box-shadow: var(--glow-gem);
  transform: scale(1.12);
}

/* ============================================================
   OVERLAY SCREENS
   ============================================================ */
.overlay-screen {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(3,3,13,.92);
  backdrop-filter: blur(14px);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  padding: 20px 16px;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}
.overlay-screen.hidden { display: none !important; }

.overlay-box {
  background: linear-gradient(160deg, rgba(12,7,35,.99) 0%, rgba(6,4,18,.99) 100%);
  border: 1.5px solid rgba(168,85,247,.45);
  border-radius: 26px;
  padding: 36px 30px;
  max-width: 500px; width: 100%;
  text-align: center;
  box-shadow: var(--glow-gem), 0 28px 90px rgba(0,0,0,.9);
  position: relative; overflow: hidden;
  animation: boxIn .5s cubic-bezier(.34,1.56,.64,1);
}
.overlay-box::before {
  content: '';
  position: absolute; top: 0; left: -100%;
  width: 60%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(168,85,247,.07), transparent);
  animation: shimmer 4.5s ease-in-out infinite;
}
@keyframes shimmer { 0%{left:-100%} 100%{left:200%} }
@keyframes boxIn   { from{transform:scale(.65) rotate(-3deg);opacity:0} to{transform:scale(1);opacity:1} }

/* GEM LOGO — transparent PNG, screen blend as safety net */
.overlay-gem {
  width: 88px; height: 88px;
  object-fit: contain;
  display: block; margin: 0 auto 16px;
  /* screen blend mode: black pixels become invisible */
  mix-blend-mode: screen;
  filter:
    drop-shadow(0 0 20px rgba(168,85,247,.9))
    drop-shadow(0 0 50px rgba(124,58,237,.7));
  animation: gemFloat2 3s ease-in-out infinite;
}
@keyframes gemFloat2 {
  0%,100%{ transform:translateY(0) rotate(-3deg) scale(1); filter:drop-shadow(0 0 20px rgba(168,85,247,.9)) drop-shadow(0 0 50px rgba(124,58,237,.7)); }
  50%    { transform:translateY(-12px) rotate(3deg) scale(1.08); filter:drop-shadow(0 0 35px rgba(168,85,247,1)) drop-shadow(0 0 80px rgba(99,102,241,1)); }
}

.overlay-title {
  font-family: var(--font-title);
  font-size: clamp(22px,5.5vw,40px); font-weight: 900;
  background: linear-gradient(135deg,#fbbf24,#a855f7,#06b6d4,#ec4899,#fbbf24);
  background-size: 400% 400%;
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text; animation: titleGrad 5s ease infinite;
  margin-bottom: 8px;
}
.overlay-tagline {
  font-family: var(--font-mono);
  font-size: clamp(9px,2vw,12px); letter-spacing: 5px; color: var(--cyan);
  margin-bottom: 20px; animation: subPulse 2.5s ease-in-out infinite;
}

/* ============================================================
   GUIDE GRID
   ============================================================ */
.guide-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 8px; margin: 0 0 18px; text-align: left;
}
.guide-item {
  background: rgba(255,255,255,.03);
  border: 1px solid rgba(168,85,247,.22);
  border-radius: 12px; padding: 11px 12px;
  display: flex; gap: 8px; align-items: flex-start;
  transition: border-color .3s, background .3s;
}
.guide-item:hover {
  border-color: rgba(168,85,247,.5); background: rgba(168,85,247,.07);
}
.guide-icon { font-size: 22px; line-height: 1; flex-shrink: 0; }
.guide-item h4 { font-size: 11px; font-weight: 700; color: white; margin-bottom: 2px; }
.guide-item p  { font-size: 10px; color: #666; line-height: 1.5; }

/* ============================================================
   DIFFICULTY
   ============================================================ */
.diff-section { margin-bottom: 20px; }
.diff-label {
  font-family: var(--font-mono); font-size: 10px;
  color: #444; letter-spacing: 2px; margin-bottom: 10px;
}
.diff-grid { display: flex; gap: 7px; justify-content: center; flex-wrap: wrap; }
.diff-btn {
  font-family: var(--font-mono); font-size: 11px; font-weight: 700;
  letter-spacing: 1px; padding: 9px 14px; border-radius: 10px;
  border: 1.5px solid rgba(168,85,247,.3);
  background: rgba(168,85,247,.06); color: #666;
  cursor: pointer; transition: all .2s;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}
.diff-btn:hover, .diff-btn:active { background: rgba(168,85,247,.2); border-color: var(--gem); color: white; }
.diff-btn.active { background: rgba(168,85,247,.25); border-color: var(--gem); color: white; box-shadow: 0 0 16px rgba(168,85,247,.4); }
.mobile-note { font-size: 11px; color: #333; margin-top: 12px; }

/* ============================================================
   GAME OVER
   ============================================================ */
.final-score {
  font-family: var(--font-mono);
  font-size: clamp(44px,11vw,70px); font-weight: 900;
  background: linear-gradient(135deg,#f59e0b,#a855f7);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text; margin: 8px 0;
  animation: finalPop .65s cubic-bezier(.34,1.56,.64,1);
}
@keyframes finalPop { from{transform:scale(0) rotate(-10deg)} to{transform:scale(1)} }
.final-grade { font-family: var(--font-title); font-size: clamp(15px,4vw,20px); margin-bottom: 6px; animation: fadeUp .5s .3s both; }
@keyframes fadeUp { from{opacity:0;transform:translateY(16px)} to{opacity:1;transform:translateY(0)} }
.go-msg { color: #666; font-size: 14px; margin-bottom: 16px; }
.stats-row { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; margin: 0 0 18px; }
.stat-pill {
  background: rgba(255,255,255,.04); border: 1px solid rgba(168,85,247,.22);
  border-radius: 50px; padding: 7px 14px;
  font-family: var(--font-mono); font-size: 10px; color: #555; letter-spacing: 1px;
}
.stat-pill span { color: var(--gem); font-size: 13px; font-weight: 700; }
.go-btns { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  font-family: var(--font-mono); font-weight: 700;
  font-size: 13px; letter-spacing: 2px; text-transform: uppercase;
  border: none; border-radius: 13px; padding: 14px 28px;
  cursor: pointer; position: relative; overflow: hidden;
  transition: transform .2s, box-shadow .2s;
  display: inline-flex; align-items: center; justify-content: center;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}
.btn:hover  { transform: translateY(-2px) scale(1.04); }
.btn:active { transform: scale(.97); }

.btn-primary {
  background: linear-gradient(135deg,#7c3aed,#a855f7,#ec4899);
  background-size: 200% 200%; color: white;
  box-shadow: 0 6px 26px rgba(168,85,247,.5);
  animation: btnGrad 3s ease infinite;
}
.btn-primary:hover { box-shadow: var(--glow-gem); }
@keyframes btnGrad { 0%,100%{background-position:0% 50%} 50%{background-position:100% 50%} }
.btn-huge { font-size: 16px; padding: 18px 48px; margin-top: 4px; }

.btn-gold {
  background: linear-gradient(135deg,#d97706,#f59e0b,#fcd34d);
  color: #1a0800; box-shadow: 0 6px 26px rgba(245,158,11,.4);
}
.btn-gold:hover { box-shadow: var(--glow-gold); }

/* ============================================================
   GAME HEADER
   ============================================================ */
#game-ui {
  width: 100%; display: flex; flex-direction: column;
  align-items: center; position: relative; z-index: 10;
}
.game-header { text-align: center; padding: 20px 20px 8px; width: 100%; }

.gem-logo-wrap {
  display: inline-block; margin-bottom: 8px;
  filter: drop-shadow(0 0 24px rgba(168,85,247,.9)) drop-shadow(0 0 55px rgba(124,58,237,.7));
  animation: gemFloat2 3.5s ease-in-out infinite;
}
.gem-logo-img {
  width: 76px; height: 76px;
  object-fit: contain; display: block;
  /* THE FIX: screen blend mode removes black background */
  mix-blend-mode: screen;
}

.title-main {
  font-family: var(--font-title);
  font-size: clamp(24px,6vw,52px); font-weight: 900;
  background: linear-gradient(135deg,#fbbf24,#a855f7,#06b6d4,#ec4899,#fbbf24);
  background-size: 400% 400%;
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text; animation: titleGrad 5s ease infinite;
  letter-spacing: 2px; line-height: 1;
}
.title-sub {
  font-family: var(--font-mono); font-size: clamp(9px,2vw,12px);
  letter-spacing: 5px; color: var(--cyan);
  margin-top: 5px; animation: subPulse 2.5s ease-in-out infinite;
}

/* ============================================================
   HUD
   ============================================================ */
.hud {
  display: flex; gap: 10px; flex-wrap: wrap;
  justify-content: center; align-items: center;
  padding: 0 12px 8px; width: 100%; max-width: 680px;
}
.hud-chip {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(168,85,247,.35);
  border-radius: 50px; padding: 9px 18px;
  display: flex; align-items: center; gap: 9px;
  backdrop-filter: blur(8px);
  transition: box-shadow .3s, border-color .3s;
}
.hud-chip:hover { border-color: var(--gem); box-shadow: var(--glow-gem); }
.hud-icon { font-size: 18px; }
.hud-lbl  { font-family: var(--font-mono); font-size: 9px; color: #555; letter-spacing: 1px; }
.hud-val  { font-family: var(--font-mono); font-size: 22px; font-weight: 900; color: white; min-width: 40px; text-align: center; }
.hud-val.bump { animation: valBump .35s cubic-bezier(.34,1.56,.64,1); }
@keyframes valBump { 0%,100%{transform:scale(1)} 50%{transform:scale(1.6);color:var(--gold)} }

/* TIMER */
.timer-wrap { position: relative; width: 80px; height: 80px; flex-shrink: 0; }
#timer-svg { width: 80px; height: 80px; transform: rotate(-90deg); filter: drop-shadow(0 0 8px var(--cyan)); }
.timer-track { fill:none; stroke:rgba(255,255,255,.06); stroke-width:6; }
.timer-fill  { fill:none; stroke:url(#arcGrad); stroke-width:6; stroke-linecap:round; transition:stroke-dashoffset .95s linear, stroke .3s; }
.timer-overlay { position:absolute; inset:0; display:flex; flex-direction:column; align-items:center; justify-content:center; }
.timer-number { font-family:var(--font-mono); font-size:22px; font-weight:900; color:white; transition:color .3s; }
.timer-number.danger { color:var(--red); animation:timerDanger .5s ease-in-out infinite alternate; }
@keyframes timerDanger { 0%{transform:scale(1)} 100%{transform:scale(1.18)} }
.timer-label { font-family:var(--font-mono); font-size:8px; color:#555; letter-spacing:2px; }

/* COMBO TEXT */
#combo-display {
  font-family: var(--font-mono); font-size: clamp(13px,3.5vw,20px);
  font-weight: 900; min-height: 26px; color: var(--gold);
  text-shadow: var(--glow-gold); letter-spacing: 2px;
  position: relative; z-index: 10;
}
#combo-display.shake { animation: comboShake .45s; }
@keyframes comboShake {
  15%,85%{transform:rotate(-1.5deg) scale(1.08)}
  30%,70%{transform:rotate(2deg) scale(1.15)}
  50%    {transform:rotate(-2deg) scale(1.22)}
}

/* POWER BAR */
.power-bar-wrap {
  width: clamp(290px,93vw,590px); margin: 5px auto 8px;
  padding: 0 4px; position: relative; z-index: 10;
}
.power-bar-labels { font-family:var(--font-mono); font-size:10px; color:#444; letter-spacing:2px; display:flex; justify-content:space-between; margin-bottom:4px; }
.power-bar-bg { background:rgba(255,255,255,.05); border:1px solid rgba(168,85,247,.2); border-radius:50px; height:13px; overflow:hidden; }
.power-bar-fill {
  height:100%; width:0%;
  background: linear-gradient(90deg,#7c3aed,#a855f7,#06b6d4);
  background-size:200% 100%;
  border-radius:50px;
  transition: width .4s cubic-bezier(.34,1.56,.64,1);
  animation: pbShimmer 2s linear infinite;
}
@keyframes pbShimmer { 0%{background-position:0% 0%} 100%{background-position:200% 0%} }
.power-bar-fill.maxed {
  background: linear-gradient(90deg,#f59e0b,#ec4899,#a855f7);
  animation: pbMaxed .55s ease-in-out infinite alternate;
}
@keyframes pbMaxed { 0%{filter:brightness(1)} 100%{filter:brightness(1.7) drop-shadow(0 0 10px #f59e0b)} }

/* ============================================================
   3D BOARD
   ============================================================ */
.board-perspective {
  perspective: 950px;
  position: relative; z-index: 10;
  margin: 0 auto 10px;
}
#board {
  width: clamp(290px,94vw,580px);
  aspect-ratio: 1;
  display: grid; grid-template-columns: repeat(3,1fr);
  gap: 9px; padding: 16px;
  background:
    radial-gradient(ellipse at 28% 18%, rgba(168,85,247,.16) 0%,transparent 55%),
    radial-gradient(ellipse at 72% 82%, rgba(99,102,241,.13) 0%,transparent 52%),
    radial-gradient(ellipse at 50% 50%, rgba(6,182,212,.06) 0%,transparent 68%),
    linear-gradient(158deg, rgba(14,14,40,.97), rgba(7,7,22,.99));
  border: 1.5px solid rgba(168,85,247,.28);
  border-radius: 26px;
  box-shadow:
    0 0 0 1px rgba(168,85,247,.1),
    0 20px 60px rgba(0,0,0,.88),
    inset 0 1px 0 rgba(255,255,255,.06);
  transform: rotateX(8deg);
  transform-style: preserve-3d;
  animation: boardFloat 7s ease-in-out infinite;
}
@keyframes boardFloat {
  0%,100%{ transform:rotateX(8deg) translateY(0); }
  50%    { transform:rotateX(5.5deg) translateY(-8px); }
}

/* ============================================================
   HOLES
   ============================================================ */
.hole {
  position: relative; border-radius: 18px;
  overflow: hidden; cursor: crosshair;
  transform-style: preserve-3d;
  transition: transform .14s;
  aspect-ratio: 1;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}
.hole:hover  { transform: translateZ(5px); }
.hole:active { transform: translateZ(2px) scale(.97); }

.hole-inner {
  width: 100%; height: 100%;
  position: relative;
  display: flex; align-items: flex-end; justify-content: center;
  padding-bottom: 5%;
  background:
    radial-gradient(ellipse at 50% 88%, rgba(0,0,0,.95) 0%,rgba(14,5,32,.76) 55%,transparent 80%),
    radial-gradient(ellipse at 50% 50%, rgba(9,4,24,.97) 0%,rgba(4,2,9,.99) 100%);
  border: 1px solid rgba(168,85,247,.16);
  border-radius: 18px;
  overflow: hidden;
  transition: border-color .2s;
}
.hole:hover .hole-inner { border-color: rgba(168,85,247,.38); }

/* 3D pit */
.hole-pit {
  position: absolute; bottom: 0; left: 50%;
  transform: translateX(-50%);
  width: 82%; height: 26%;
  background: radial-gradient(ellipse, rgba(0,0,0,.97) 22%, rgba(20,0,44,.72) 65%, transparent 100%);
  border-radius: 50%; z-index: 1;
}
.hole-pit::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 30%;
  border-radius: 50%;
  background: radial-gradient(ellipse at 50% 0%, rgba(168,85,247,.1), transparent 70%);
}

/* ============================================================
   HOLE CHARACTERS
   ============================================================ */
.hole-character {
  position: absolute; bottom: 0; left: 50%;
  transform: translateX(-50%) translateY(112%);
  z-index: 5; pointer-events: none;
  will-change: transform;
}
.hole-character.show { animation: popUp .22s cubic-bezier(.34,1.56,.64,1) forwards; }
.hole-character.hide { animation: popDown .2s ease-in forwards; }

@keyframes popUp {
  0%  { transform:translateX(-50%) translateY(112%); }
  65% { transform:translateX(-50%) translateY(-10%); }
  100%{ transform:translateX(-50%) translateY(0); }
}
@keyframes popDown {
  0%  { transform:translateX(-50%) translateY(0); }
  100%{ transform:translateX(-50%) translateY(115%); }
}

/* GEM CHARACTER — the key is mix-blend-mode: screen on dark bg */
.hole-character.gem-char img {
  mix-blend-mode: screen;
  filter:
    drop-shadow(0 0 14px rgba(168,85,247,.95))
    drop-shadow(0 0 30px rgba(124,58,237,.8))
    drop-shadow(0 -3px 20px rgba(192,132,252,.7))
    brightness(1.05);
  animation: gemBob .75s ease-in-out infinite alternate;
}
@keyframes gemBob { 0%{transform:scale(1) rotate(-2deg)} 100%{transform:scale(1.1) rotate(2deg)} }

.hole-character.mole-char img {
  filter: drop-shadow(0 0 8px rgba(255,100,50,.5));
  animation: moleBob .6s ease-in-out infinite alternate;
}
@keyframes moleBob { 0%{transform:scale(1) rotate(-3deg)} 100%{transform:scale(1.06) rotate(3deg)} }

.hole-character.bomb-char .bomb-icon {
  font-size: clamp(44px,11vw,74px); line-height: 1; display: block;
  filter: drop-shadow(0 0 16px #ef4444) drop-shadow(0 0 32px #dc2626);
  animation: bombPulse .5s ease-in-out infinite alternate;
}
@keyframes bombPulse { 0%{transform:scale(1) rotate(-5deg)} 100%{transform:scale(1.15) rotate(5deg)} }

/* character img base sizing */
.hole-character img {
  width: clamp(52px,13vw,90px);
  height: clamp(52px,13vw,90px);
  object-fit: contain; display: block;
  user-select: none; -webkit-user-drag: none; pointer-events: none;
}

/* ============================================================
   HIT FLASH CLASSES
   ============================================================ */
.hole.whacked .hole-inner { animation: whackFlash .38s ease-out; }
@keyframes whackFlash {
  0%  { background:radial-gradient(ellipse,rgba(245,158,11,.7) 0%,rgba(168,85,247,.28) 50%,transparent 80%); }
  100%{ background:radial-gradient(ellipse at 50% 88%,rgba(0,0,0,.95) 0%,rgba(14,5,32,.76) 55%,transparent 80%); }
}
.hole.missed .hole-inner  { animation: missFlash  .32s ease-out; }
@keyframes missFlash  { 0%{background:radial-gradient(ellipse,rgba(239,68,68,.44) 0%,transparent 72%)} 100%{} }
.hole.bombed .hole-inner  { animation: bombedFlash .4s ease-out; }
@keyframes bombedFlash{ 0%{background:radial-gradient(ellipse,rgba(239,68,68,.78) 0%,rgba(239,68,68,.25) 55%,transparent 80%)} 100%{} }

/* ============================================================
   FLOATING SCORE POPUP
   ============================================================ */
.score-pop {
  position: fixed;
  font-family: var(--font-mono); font-weight: 900;
  pointer-events: none; z-index: 9999;
  text-shadow: 0 0 12px currentColor;
  white-space: nowrap;
  animation: scorePop 1.05s ease-out forwards;
}
@keyframes scorePop {
  0%  { transform:translateY(0) scale(1); opacity:1; }
  100%{ transform:translateY(-88px) scale(1.9); opacity:0; }
}

/* ============================================================
   DIFF INDICATOR
   ============================================================ */
.diff-indicator {
  position: relative; z-index: 10;
  font-family: var(--font-mono); font-size: 10px;
  color: #252545; letter-spacing: 3px;
  padding-bottom: 20px; margin-top: 4px;
}

/* ============================================================
   SCROLLBAR
   ============================================================ */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(168,85,247,.4); border-radius: 2px; }

/* ============================================================
   RESPONSIVE / MOBILE
   ============================================================ */
@media (max-width: 480px) {
  .overlay-box     { padding: 24px 14px; }
  .guide-grid      { grid-template-columns: 1fr; gap:6px; }
  .btn-huge        { font-size: 14px; padding: 15px 32px; }
  .diff-btn        { padding: 8px 11px; font-size: 10px; }
  .game-header     { padding: 14px 14px 6px; }
  #board           { gap:7px; padding:12px; }
}
@media (max-width: 360px) {
  .title-main { font-size: 20px; }
  .gem-logo-img { width:60px; height:60px; }
}

/* Touch devices: disable hover pseudo-states that linger */
@media (hover:none) {
  .hole:hover      { transform:none; }
  .hud-chip:hover  { border-color:rgba(168,85,247,.35); box-shadow:none; }
}