*,*::before,*::after{
  box-sizing:border-box;margin:0;padding:0;
  -webkit-tap-highlight-color:transparent!important;
  -webkit-touch-callout:none;
  -webkit-user-select:none;user-select:none;
  touch-action:manipulation;outline:none;
}
:root{
  --bg:#0d0120;--acc:#f7c948;--acc2:#c49200;
  --teal:#4ecdc4;--pink:#ff6b9d;
  --t:env(safe-area-inset-top,0px);
  --b:env(safe-area-inset-bottom,0px);
}
html,body{width:100%;height:100%;overflow:hidden;background:var(--bg);color:#fff;
  font-family:'Nunito',sans-serif;-webkit-font-smoothing:antialiased;}
#bg{position:fixed;inset:0;z-index:0;pointer-events:none;}
#fx{position:fixed;inset:0;z-index:150;pointer-events:none;}
.project-back{position:fixed;top:calc(var(--t) + 10px);left:12px;z-index:110;
  border:1px solid rgba(255,255,255,.14);border-radius:999px;padding:8px 12px;
  background:rgba(13,1,32,.78);color:#fff;text-decoration:none;font-size:11px;font-weight:900;
  backdrop-filter:blur(10px);}
.project-back:focus-visible,.project-button:focus-visible{outline:3px solid var(--teal);outline-offset:3px;}
.demo-message{max-width:440px;padding:0 20px;text-align:center;}
.demo-actions{flex-wrap:wrap;justify-content:center;}
.project-button{display:inline-flex;align-items:center;justify-content:center;text-decoration:none;}

/* -- STARTUP SPLASH -- */
#startup-splash{position:fixed;inset:0;z-index:120;
  display:flex;align-items:center;justify-content:center;
  background:radial-gradient(circle at center,rgba(247,201,72,.16),rgba(13,1,32,.97) 60%);
  backdrop-filter:blur(14px);
  opacity:1;pointer-events:all;
  transition:opacity .42s ease,transform .42s ease;}
#startup-splash.out{opacity:0;pointer-events:none;}
.startup-card{width:min(88vw,420px);padding:24px 22px 28px;text-align:center;
  border-radius:28px;border:1px solid rgba(255,255,255,.12);
  background:linear-gradient(180deg,rgba(255,255,255,.13),rgba(255,255,255,.05));
  box-shadow:0 24px 60px rgba(0,0,0,.34);}
.startup-logo{width:min(58vw,210px);display:block;margin:0 auto 16px;
  border-radius:30px;box-shadow:0 18px 40px rgba(0,0,0,.3);
  animation:startupFloat 2.8s ease-in-out infinite;}
.startup-title{font-family:'Fredoka One',cursive;font-size:34px;line-height:1.02;
  max-width:100%;overflow-wrap:anywhere;color:var(--acc);
  text-shadow:0 4px 0 var(--acc2),0 10px 26px rgba(247,201,72,.22);}
.startup-love{margin-top:12px;font-size:14px;font-weight:900;letter-spacing:1px;
  color:rgba(255,255,255,.88);}
.startup-heart{margin-top:10px;font-size:28px;filter:drop-shadow(0 8px 16px rgba(255,107,157,.35));}
@keyframes startupFloat{0%,100%{transform:translateY(0) scale(1)}50%{transform:translateY(-10px) scale(1.02)}}

/* ── SCREENS ── */
.screen{position:fixed;inset:0;display:flex;flex-direction:column;
  align-items:center;justify-content:center;z-index:10;
  transition:opacity .22s,transform .22s;will-change:opacity,transform;}
.screen.out{opacity:0;transform:scale(.95);pointer-events:none;}

/* ── HOME ── */
#home{gap:16px;padding:20px;}
.home-new-btn{min-width:190px;}
.logo-emoji{font-size:68px;display:block;line-height:1;
  animation:bob 2.8s ease-in-out infinite;
  filter:drop-shadow(0 8px 16px rgba(247,201,72,.4));}
@keyframes bob{0%,100%{transform:translateY(0)rotate(-4deg)}50%{transform:translateY(-13px)rotate(4deg)}}
.logo-title{font-family:'Fredoka One',cursive;font-size:42px;line-height:1;
  max-width:calc(100vw - 32px);overflow-wrap:anywhere;text-align:center;
  color:var(--acc);text-shadow:0 4px 0 var(--acc2),0 8px 20px rgba(247,201,72,.3);margin-top:6px;}
.logo-sub{font-size:11px;letter-spacing:4px;text-transform:uppercase;color:rgba(255,255,255,.32);margin-top:2px;text-align:center;}
.parade{display:flex;gap:6px;font-size:28px;}
.mode-note{font-size:13px;font-weight:800;color:rgba(255,255,255,.78);
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.1);
  max-width:calc(100vw - 32px);padding:10px 16px;border-radius:999px;text-align:center;}
.play-btn{font-family:'Fredoka One',cursive;font-size:24px;padding:13px 54px;
  border:none;border-radius:60px;background:linear-gradient(135deg,#f7c948,#ff9500);
  color:#0d0120;box-shadow:0 5px 0 var(--acc2),0 10px 24px rgba(247,201,72,.28);
  cursor:pointer;transition:transform .1s,box-shadow .1s;}
.play-btn:active{transform:translateY(5px);box-shadow:0 1px 0 var(--acc2),0 3px 10px rgba(247,201,72,.2);}
.bests{display:flex;gap:10px;}
.bx{text-align:center;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.1);
  border-radius:12px;padding:6px 16px;}
.bl{font-size:9px;letter-spacing:2px;text-transform:uppercase;color:rgba(255,255,255,.28);}
.bv{font-family:'Fredoka One',cursive;font-size:20px;color:var(--acc);}

/* ── GAME ── */
#game{justify-content:flex-start;padding:0;}

.hud{width:100%;flex-shrink:0;
  padding:calc(var(--t)+10px) 12px 6px;
  display:flex;align-items:center;gap:8px;
  background:linear-gradient(to bottom,rgba(13,1,32,.99) 60%,transparent);
  position:relative;z-index:20;}
.ibtn{width:36px;height:36px;flex-shrink:0;border:none;border-radius:50%;
  background:rgba(255,255,255,.1);color:#fff;font-size:15px;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  transform:translateZ(0);will-change:transform;
  transition:background .15s,transform .1s;}
.ibtn:active{transform:translateZ(0) scale(.86);background:rgba(255,255,255,.2);}
.hud-mid{flex:1;display:flex;justify-content:center;gap:8px;}
.hpill{background:rgba(255,255,255,.08);border-radius:50px;padding:2px 14px;text-align:center;}
.hl{font-size:8px;color:rgba(255,255,255,.32);letter-spacing:2px;text-transform:uppercase;}
.hv{font-family:'Fredoka One',cursive;font-size:22px;color:var(--acc);line-height:1.1;}
.hv.w{color:#fff;}
.hearts{display:flex;gap:2px;align-items:center;flex-shrink:0;}
.heart{font-size:14px;}
.heart.dead{opacity:.18;}

.lvlrow{width:100%;flex-shrink:0;display:flex;align-items:center;gap:5px;padding:0 12px 3px;}
.lvltxt{font-size:10px;color:rgba(255,255,255,.28);}
.dots{display:flex;gap:3px;}
.dot{width:7px;height:7px;border-radius:50%;background:rgba(255,255,255,.13);transition:background .3s;}
.dot.done{background:var(--teal);}
.dot.cur{background:var(--acc);}

.trow{width:100%;flex-shrink:0;padding:0 12px 4px;}
.tmeta{display:flex;justify-content:space-between;font-size:9px;color:rgba(255,255,255,.28);margin-bottom:2px;}
.ttrack{height:5px;background:rgba(255,255,255,.08);border-radius:5px;overflow:hidden;}
.tbar{height:100%;border-radius:5px;transform-origin:left;background:linear-gradient(90deg,var(--teal),var(--acc));will-change:transform;}

.stats{width:100%;flex-shrink:0;display:flex;gap:5px;padding:0 12px 4px;}
.stat{flex:1;text-align:center;background:rgba(255,255,255,.05);border-radius:8px;padding:3px 0;}
.sl{font-size:8px;color:rgba(255,255,255,.25);text-transform:uppercase;letter-spacing:1px;}
.sv{font-family:'Fredoka One',cursive;font-size:17px;line-height:1.15;}
.sv.hot{color:var(--pink);}

/* ── BOARD ── */
.bscroll{flex:1 1 0;min-height:0;width:100%;
  overflow-y:auto;
  overflow-x:hidden;
  -webkit-overflow-scrolling:touch;scrollbar-width:none;
  padding:2px 8px 4px;
  display:flex;align-items:flex-start;justify-content:center;
  overscroll-behavior:contain;}
.bscroll::-webkit-scrollbar{display:none;}

#board{position:relative;flex-shrink:0;}

/* ── TILE ── */
.tile{
  position:absolute;
  border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  cursor:pointer;
  /* White card with bottom edge for depth */
  background:#fff;
  border-bottom:4px solid #c8c8c8;
  /* GPU layer — allocated once, never changes */
  transform:translateZ(0);
  will-change:transform;
  -webkit-backface-visibility:hidden;backface-visibility:hidden;
  /* Only transform in transitions — nothing else */
  transition:transform .1s ease;
  /* Prevent any selection highlight */
  -webkit-tap-highlight-color:transparent!important;
}
/* Depth shadow per z-layer — set at build time via inline style, never changes */
/* Darkness overlay for blocked tiles — ::before avoids filter repaint */
.tile::before{
  content:'';position:absolute;inset:0;border-radius:8px;
  background:rgba(0,0,0,0);pointer-events:none;
  transition:background .15s;
}
.tile.blocked{opacity:.4;cursor:default;pointer-events:none!important;}
.tile.gone{visibility:hidden;pointer-events:none!important;}

/* Press: transform only — compositor handles it, zero repaint */
.tile.pressed{transform:translateZ(0) scale(.83) translateY(2px)!important;}

@keyframes tile-in{
  from{opacity:0;transform:translateZ(0) scale(.45) translateY(-10px);}
  to{opacity:1;transform:translateZ(0) scale(1) translateY(0);}
}
.tile.tin{animation:tile-in .18s ease both;}

@keyframes tile-pop{
  0%{transform:translateZ(0) scale(1);opacity:1;}
  55%{transform:translateZ(0) scale(1.18);opacity:.6;}
  100%{transform:translateZ(0) scale(0);opacity:0;}
}
.tile.popping{animation:tile-pop .22s ease forwards;pointer-events:none!important;}

@keyframes tile-reveal{
  0%{transform:translateZ(0) scale(.75);opacity:.5;}
  60%{transform:translateZ(0) scale(1.06);opacity:1;}
  100%{transform:translateZ(0) scale(1);opacity:1;}
}
.tile.reveal{animation:tile-reveal .3s cubic-bezier(.34,1.56,.64,1) both;}

.tile.hint{
  box-shadow:0 0 0 3px var(--teal),0 0 10px var(--teal)!important;
  animation:hpulse .6s ease-in-out infinite alternate;
}
@keyframes hpulse{to{box-shadow:0 0 0 4px var(--teal),0 0 18px var(--teal)!important;}}

.tile.is-bomb{border-bottom-color:rgba(239,68,68,.7);}
.tile.is-wild{border-bottom-color:rgba(247,201,72,.9);}
.tile.is-frozen::after{
  content:'';position:absolute;inset:0;
  display:flex;align-items:center;justify-content:center;
  font-size:115%;border-radius:10px;
  background:linear-gradient(135deg,rgba(190,235,255,.72),rgba(94,173,230,.5));
  pointer-events:none;
}

/* ── TRAY ── */
.tzone{width:100%;flex-shrink:0;
  padding:5px 8px calc(var(--b)+10px);
  background:linear-gradient(to top,rgba(13,1,32,1) 50%,transparent);}
.pups{display:flex;justify-content:center;gap:6px;margin-bottom:6px;}
.pu{display:flex;align-items:center;gap:3px;
  border:1.5px solid rgba(255,255,255,.1);background:rgba(255,255,255,.07);
  border-radius:50px;padding:5px 10px;
  font-weight:800;font-size:11px;color:#fff;cursor:pointer;
  transform:translateZ(0);will-change:transform;
  transition:background .15s,transform .1s;}
.pu:active:not([disabled]){transform:translateZ(0) scale(.88);background:rgba(255,255,255,.18);}
.pu[disabled]{opacity:.25;cursor:default;}
.pi{font-size:14px;}
.pn{background:var(--acc);color:#0d0120;font-size:10px;font-weight:900;
  border-radius:6px;padding:1px 4px;min-width:15px;text-align:center;}

#tray{display:flex;gap:4px;
  background:rgba(255,255,255,.05);
  border:1.5px solid rgba(255,255,255,.08);
  border-radius:13px;padding:6px;
  min-height:56px;align-items:center;
  position:relative;overflow:hidden;}
#tray::before{content:'';position:absolute;top:0;left:0;right:0;height:35%;
  background:linear-gradient(to bottom,rgba(255,255,255,.04),transparent);
  pointer-events:none;border-radius:13px 13px 0 0;}
.tslot{flex:1;max-width:42px;aspect-ratio:1;border-radius:7px;
  border:1.5px dashed rgba(255,255,255,.1);position:relative;overflow:hidden;
  transition:border-color .2s;}
.tslot.warn{border-color:rgba(255,70,70,.5);}
.ttile{position:absolute;inset:0;background:#fff;border-radius:6px;
  display:flex;align-items:center;justify-content:center;
  font-size:clamp(12px,5vw,21px);
  border-bottom:3px solid rgba(0,0,0,.14);
  transform:translateZ(0);}
@keyframes tt-in{from{transform:translateZ(0) scale(.2);opacity:0;}to{transform:translateZ(0) scale(1);opacity:1;}}
.ttile.fresh{animation:tt-in .16s ease;}
@keyframes tt-match{0%{background:#fff;transform:translateZ(0) scale(1);}40%{background:#b2ffd0;transform:translateZ(0) scale(1.1);}100%{background:#fff;transform:translateZ(0) scale(1);}}
.ttile.matched{animation:tt-match .26s ease;}
@keyframes tshake{0%,100%{transform:translateX(0);}25%{transform:translateX(-4px);}75%{transform:translateX(4px);}}
#tray.shake{animation:tshake .26s ease;}

/* ── FX ── */
.sfloat{position:fixed;pointer-events:none;z-index:200;
  font-family:'Fredoka One',cursive;font-size:24px;
  text-shadow:0 2px 6px rgba(0,0,0,.5);
  animation:sfloat .6s ease forwards;}
@keyframes sfloat{to{transform:translateY(-48px);opacity:0;}}
.cbanner{position:fixed;top:35%;left:50%;
  transform:translateX(-50%) scale(0);
  font-family:'Fredoka One',cursive;font-size:28px;
  color:#fff;padding:8px 28px;border-radius:60px;
  z-index:200;pointer-events:none;
  animation:cpop .68s ease forwards;}
@keyframes cpop{
  0%{transform:translateX(-50%) scale(0);opacity:0;}
  40%{transform:translateX(-50%) scale(1.1);opacity:1;}
  65%{transform:translateX(-50%) scale(1);opacity:1;}
  100%{transform:translateX(-50%) scale(.5);opacity:0;}}

/* ── WIN / LOSE ── */
#win,#lose{background:rgba(13,1,32,.97);backdrop-filter:blur(16px);gap:10px;padding:20px;}
.rico{font-size:72px;animation:bob 2s ease-in-out infinite;}
.rtitle{font-family:'Fredoka One',cursive;font-size:40px;text-shadow:0 4px 0 rgba(0,0,0,.4);}
.rtitle.wc{color:var(--acc);}.rtitle.lc{color:var(--pink);}
.rsub{font-size:10px;letter-spacing:3px;text-transform:uppercase;color:rgba(255,255,255,.28);}
.rpts{font-family:'Fredoka One',cursive;font-size:52px;line-height:1;}
.rlbl{font-size:10px;letter-spacing:2px;text-transform:uppercase;color:rgba(255,255,255,.28);}
.rrec{color:var(--teal);font-size:14px;font-weight:800;min-height:20px;}
.lose-rico{font-size:96px;filter:drop-shadow(0 12px 24px rgba(255,107,157,.28));}
.lose-taunt{max-width:280px;text-align:center;color:#ffd166;font-size:16px;min-height:42px;}
.rbtns{display:flex;gap:10px;margin-top:8px;}
.gbtn{font-family:'Nunito',sans-serif;font-weight:800;font-size:14px;
  padding:10px 20px;border-radius:50px;
  background:rgba(255,255,255,.08);border:2px solid rgba(255,255,255,.13);
  color:#fff;cursor:pointer;
  transform:translateZ(0);will-change:transform;
  transition:background .15s,transform .1s;}
.gbtn:active{transform:translateZ(0) scale(.92);background:rgba(255,255,255,.16);}

/* ── PAUSE ── */
#pov{position:fixed;inset:0;z-index:50;
  background:rgba(13,1,32,.94);backdrop-filter:blur(14px);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  opacity:0;pointer-events:none;transition:opacity .2s;}
#pov.on{opacity:1;pointer-events:all;}
.ptitle{font-family:'Fredoka One',cursive;font-size:36px;}
.sound-toggle{margin-top:4px;min-width:176px;}

/* -- CHAPTER INTRO -- */
#chapter-intro{position:fixed;inset:0;z-index:70;
  display:flex;align-items:center;justify-content:center;
  background:radial-gradient(circle at center,rgba(76,205,196,.18),rgba(13,1,32,.96) 62%);
  backdrop-filter:blur(12px);
  opacity:0;pointer-events:none;transition:opacity .26s ease;}
#chapter-intro.on{opacity:1;pointer-events:all;}
.chapter-card{width:min(88vw,420px);padding:26px 24px 28px;border-radius:28px;
  border:1px solid rgba(255,255,255,.12);
  background:linear-gradient(180deg,rgba(255,255,255,.12),rgba(255,255,255,.05));
  box-shadow:0 24px 60px rgba(0,0,0,.35);
  text-align:center;transform:scale(.92) translateY(12px);opacity:0;
  transition:transform .34s cubic-bezier(.2,.9,.2,1),opacity .28s ease;}
#chapter-intro.on .chapter-card{transform:scale(1) translateY(0);opacity:1;}
.chapter-kicker{font-size:12px;letter-spacing:4px;text-transform:uppercase;color:rgba(255,255,255,.56);margin-bottom:10px;}
.chapter-title{font-family:'Fredoka One',cursive;font-size:34px;line-height:1.05;
  color:var(--acc);text-shadow:0 4px 0 rgba(196,146,0,.75),0 10px 28px rgba(247,201,72,.18);}
.chapter-parade{margin-top:14px;font-size:30px;display:flex;justify-content:center;gap:10px;flex-wrap:wrap;}
.chapter-range{margin-top:14px;font-size:13px;font-weight:800;color:rgba(255,255,255,.76);}

@media (max-width: 480px){
  .startup-card{width:min(90vw,360px);padding:20px 18px 24px;}
  .startup-logo{width:min(62vw,180px);margin-bottom:14px;border-radius:24px;}
  .startup-title{font-size:24px;line-height:1.12;}
  .startup-love{font-size:13px;}
  .startup-heart{font-size:24px;}
  #home{gap:14px;padding:16px;}
  .logo-emoji{font-size:56px;}
  .logo-title{font-size:33px;}
  .logo-sub{font-size:10px;letter-spacing:2px;}
  .parade{font-size:23px;gap:4px;flex-wrap:wrap;justify-content:center;}
  .mode-note{font-size:12px;padding:9px 14px;}
  .play-btn{font-size:21px;padding:12px 34px;}
  .home-new-btn{min-width:168px;font-size:13px;}
  .bx{padding:6px 12px;}
  .hud{padding:calc(var(--t)+8px) 8px 6px;gap:6px;}
  .ibtn{width:34px;height:34px;font-size:14px;}
  .hud-mid{gap:6px;}
  .hpill{padding:2px 10px;}
  .hv{font-size:19px;}
  .stats{padding:0 8px 4px;gap:4px;}
  .sv{font-size:15px;}
  .sl{font-size:7px;}
  .bscroll{padding:2px 4px 4px;}
  .tzone{padding:5px 6px calc(var(--b)+8px);}
  .pups{gap:4px;flex-wrap:wrap;}
  .pu{font-size:10px;padding:5px 8px;}
  .pi{font-size:13px;}
  #tray{padding:5px;gap:3px;min-height:50px;}
  .tslot{max-width:40px;}
  .rtitle{font-size:31px;}
  .rpts{font-size:42px;}
  .lose-rico{font-size:82px;}
  .lose-taunt{font-size:14px;max-width:240px;}
  .sound-toggle{min-width:160px;font-size:13px;}
  .chapter-card{width:min(90vw,360px);padding:22px 18px 24px;}
  .chapter-title{font-size:28px;}
  .chapter-parade{font-size:26px;gap:8px;}
  .chapter-range{font-size:12px;}
}

@media (max-width: 380px){
  .logo-title{font-size:28px;}
  .play-btn{font-size:19px;padding:11px 28px;}
  .home-new-btn{min-width:152px;}
  .hpill{padding:2px 8px;}
  .hv{font-size:17px;}
  .heart{font-size:12px;}
  .tslot{max-width:36px;}
  .pu{font-size:9px;padding:4px 7px;}
}

@media (max-height: 740px){
  #home{gap:12px;}
  .logo-emoji{font-size:52px;}
  .logo-title{font-size:32px;}
  .play-btn{font-size:21px;}
  .pups{margin-bottom:4px;}
  .stats{padding-bottom:2px;}
}

@media (orientation: landscape) and (max-height: 500px){
  #home{justify-content:flex-start;padding-top:18px;gap:10px;overflow-y:auto;}
  .logo-emoji{font-size:44px;}
  .logo-title{font-size:28px;}
  .logo-sub{font-size:9px;}
  .parade{font-size:20px;}
  .play-btn{font-size:18px;padding:10px 28px;}
  .home-new-btn{font-size:12px;}
  .hud{padding:calc(var(--t)+6px) 8px 4px;}
  .lvlrow,.trow,.stats{padding-left:8px;padding-right:8px;}
  .stats{gap:4px;}
  .sv{font-size:14px;}
  .tzone{padding:4px 6px calc(var(--b)+6px);}
  .pups{margin-bottom:4px;gap:4px;flex-wrap:wrap;}
  .pu{font-size:10px;padding:4px 8px;}
}