/* ── LOCAL FONTS ── */
@font-face {
  font-family:'Fredoka One';
  src:url('fonts/FredokaOne-Regular.ttf') format('truetype');
  font-weight:400; font-style:normal; font-display:swap;
}
@font-face {
  font-family:'Nunito';
  src:url('fonts/Nunito-SemiBold.ttf') format('truetype');
  font-weight:400 900; font-style:normal; font-display:swap;
}

/* ── RESET & BASE ── */
*{ margin:0; padding:0; box-sizing:border-box; }
html, body { width:100%; height:100%; overflow:hidden; }
body {
  display:flex; align-items:center; justify-content:center;
  font-family:'Nunito',sans-serif;
  background: linear-gradient(135deg, #05050f 0%, #0a0520 18%, #0d0a2e 35%, #130826 50%, #1a042e 65%, #0e0618 80%, #06091a 100%);
  background-size:400% 400%;
  animation: bgShift 20s ease infinite;
}
@keyframes bgShift {
  0%   { background-position: 0% 50%; }
  25%  { background-position: 100% 0%; }
  50%  { background-position: 100% 100%; }
  75%  { background-position: 0% 100%; }
  100% { background-position: 0% 50%; }
}

/* ── STARS ── */
#stars { position:fixed; inset:0; z-index:0; pointer-events:none; }

/* ── BLOBS ── */
.blob { position:fixed; border-radius:50%; filter:blur(90px); opacity:.16; pointer-events:none; animation:bm 14s ease-in-out infinite alternate; }
.b1 { width:420px; height:420px; background:#FF6B6B; top:-120px; left:-120px; animation-delay:0s; }
.b2 { width:380px; height:380px; background:#4D96FF; bottom:-100px; right:-100px; animation-delay:4s; }
.b3 { width:300px; height:300px; background:#C77DFF; top:38%; left:42%; animation-delay:8s; }
.b4 { width:260px; height:260px; background:#6BCB77; bottom:4%; left:4%; animation-delay:2s; }
@keyframes bm { from{transform:scale(1) translate(0,0);} to{transform:scale(1.25) translate(25px,18px);} }

/* ── SPLASH SCREEN ── */
#splashScreen {
  position:fixed; inset:0; z-index:999;
  background:#05050f;
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  transition: opacity .8s ease;
  cursor:pointer;
}
#splashScreen img {
  position:absolute; inset:0;
  width:100%; height:100%;
  object-fit:cover;
}
#tapToPlay {
  position:relative; z-index:2;
  font-family:'Fredoka One',cursive;
  font-size:2rem; letter-spacing:4px; text-transform:uppercase;
  color:#fff;
  text-shadow: 0 0 20px rgba(255,255,255,.8), 0 0 50px rgba(180,130,255,.9), 0 0 90px rgba(120,80,255,.6);
  animation: tapPulse 1.4s ease-in-out infinite;
  padding:14px 36px;
  border:2px solid rgba(255,255,255,.25);
  border-radius:99px;
  background:rgba(0,0,0,.35);
  backdrop-filter:blur(8px);
}
@keyframes tapPulse {
  0%,100% { transform:scale(1);   opacity:1; }
  50%      { transform:scale(1.06); opacity:.65; }
}
#splashScreen.fade-out { opacity:0; pointer-events:none; }

/* ── PAUSE OVERLAY ── */
#pauseOverlay {
  position:fixed; inset:0; z-index:500;
  background:rgba(5,5,15,.88); backdrop-filter:blur(12px);
  display:none; flex-direction:column; align-items:center; justify-content:center; gap:16px;
}
#pauseOverlay.visible { display:flex; }
.pause-icon  { font-size:4rem; animation:pulsePause 1.5s ease-in-out infinite; }
.pause-title { font-family:'Fredoka One',cursive; font-size:3rem; color:#fff; letter-spacing:2px; }
.pause-sub   { color:#6666aa; font-size:.9rem; font-weight:700; letter-spacing:2px; text-transform:uppercase; }
@keyframes pulsePause { 0%,100%{transform:scale(1); opacity:1;} 50%{transform:scale(1.1); opacity:.7;} }

/* ── GAME WRAPPER (480px fixed, scaled by JS) ── */
#gameWrap {
  width:480px;
  position:fixed;
  top:0; left:0;
  transform-origin:top left;
  z-index:10;
}

/* ── SCREENS ── */
.screen { display:none; flex-direction:column; align-items:center; width:100%; padding:18px; gap:0; }
.screen.active { display:flex; }

/* ════════════════════════════════
   MENU SCREEN
════════════════════════════════ */
/* Logo */
.logo-wrap { text-align:center; margin-bottom:16px; }
.logo-icon {
  display:block; line-height:1; margin-bottom:6px;
  animation:iconFloat 3s ease-in-out infinite;
}
.logo-icon svg { width:72px; height:72px; filter:drop-shadow(0 0 22px rgba(255,217,61,.7)) drop-shadow(0 0 44px rgba(255,150,50,.4)); }
@keyframes iconFloat { 0%,100%{transform:translateY(0) rotate(-4deg);} 50%{transform:translateY(-10px) rotate(4deg);} }

/* ── NEON SVG ICONS ── */
.ni { display:inline-flex; align-items:center; justify-content:center; }
.ni svg { overflow:visible; }
/* Diff icons */
.di .ni svg { width:2rem; height:2rem; }
/* Stat icons */
.stat-icon .ni svg { width:1.4rem; height:1.4rem; }
/* LB icons */
.lb-entry-icon .ni svg, .lb-icon .ni svg { width:1.5rem; height:1.5rem; }
/* Mute / Home HUD buttons */
.mute-btn .ni svg { width:1.2rem; height:1.2rem; }
/* Over emoji SVG */
.over-emoji .ni svg { width:4.5rem; height:4.5rem; }
/* Reset warning */
.reset-warning .ni svg { width:3.5rem; height:3.5rem; }
/* Achievement toast */
.ach-toast-icon .ni svg { width:1.6rem; height:1.6rem; }
/* Crown */
.lb-crown .ni svg { width:1rem; height:1rem; }

.logo-title {
  font-family:'Fredoka One',cursive;
  font-size:3.2rem; letter-spacing:-1px; line-height:1.05; text-align:center;
  background:linear-gradient(135deg,#FF6B6B,#FFD93D,#6BCB77,#4D96FF,#FF9A3C,#C77DFF);
  -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text;
  filter:drop-shadow(0 4px 18px rgba(255,107,107,.3));
}
.logo-sub     { color:#6666aa; font-size:.78rem; font-weight:700; letter-spacing:4px; text-transform:uppercase; margin-top:4px; }
.logo-tagline { color:#333355; font-size:.72rem; font-weight:600; margin-top:2px; }

/* Menu Card */
.menu-card {
  background:rgba(255,255,255,.04); backdrop-filter:blur(24px);
  border:1px solid rgba(255,255,255,.09); border-radius:26px;
  padding:26px 26px; width:100%;
  box-shadow:0 24px 70px rgba(0,0,0,.55);
}
.menu-desc {
  color:#7777aa; font-size:.88rem; line-height:1.7;
  margin-bottom:20px; text-align:center;
}
.menu-desc strong { color:#FFD93D; }

/* Difficulty label */
.diff-lbl {
  display:block; text-align:center;
  color:#333355; font-size:.65rem; font-weight:700;
  letter-spacing:3px; text-transform:uppercase; margin-bottom:10px;
}

/* Difficulty buttons */
.diff-btns { display:flex; gap:10px; margin-bottom:20px; }
.diff-btn {
  flex:1; padding:14px 6px; border:2px solid transparent; border-radius:16px;
  cursor:pointer; background:rgba(255,255,255,.06); color:#fff;
  font-family:'Nunito',sans-serif; font-weight:700;
  display:flex; flex-direction:column; align-items:center; gap:5px;
  transition:all .2s;
}
.diff-btn .di   { font-size:1.8rem; line-height:1; }
.diff-btn .dn   { font-family:'Fredoka One',cursive; font-size:1rem; color:#fff; }
.diff-btn .dx   { font-size:.6rem; opacity:.55; font-weight:700; color:#aaa; }

/* Hard X icon */
.hx {
  display:inline-block; width:28px; height:28px; position:relative;
}
.hx::before, .hx::after {
  content:''; position:absolute; top:50%; left:50%;
  width:26px; height:4px; background:#FF6B6B; border-radius:3px;
  box-shadow:0 0 8px rgba(255,107,107,.7);
}
.hx::before { transform:translate(-50%,-50%) rotate(45deg); }
.hx::after  { transform:translate(-50%,-50%) rotate(-45deg); }

.diff-btn[data-d="easy"]   { border-color:rgba(107,203,119,.3); }
.diff-btn[data-d="medium"] { border-color:rgba(255,217,61,.3); }
.diff-btn[data-d="hard"]   { border-color:rgba(255,107,107,.3); }
.diff-btn.active[data-d="easy"]   { background:rgba(107,203,119,.18); border-color:#6BCB77; box-shadow:0 0 20px rgba(107,203,119,.28); }
.diff-btn.active[data-d="medium"] { background:rgba(255,217,61,.18);  border-color:#FFD93D; box-shadow:0 0 20px rgba(255,217,61,.28); }
.diff-btn.active[data-d="hard"]   { background:rgba(255,107,107,.18); border-color:#FF6B6B; box-shadow:0 0 20px rgba(255,107,107,.28); }

/* Music toggle row */
.music-row { display:flex; align-items:center; justify-content:center; gap:12px; margin-bottom:18px; }
.tog-lbl   { color:#44445a; font-size:.78rem; font-weight:700; user-select:none; }
.tog {
  width:46px; height:25px; background:rgba(255,255,255,.1);
  border-radius:99px; border:none; cursor:pointer; position:relative; transition:background .3s;
}
.tog.on { background:linear-gradient(135deg,#4D96FF,#C77DFF); }
.tog::after {
  content:''; position:absolute; top:3px; left:3px;
  width:19px; height:19px; background:#fff; border-radius:50%;
  transition:transform .3s; box-shadow:0 2px 6px rgba(0,0,0,.3);
}
.tog.on::after { transform:translateX(21px); }

/* Play button */
.btn-play {
  width:100%; padding:18px; border:none; border-radius:18px; cursor:pointer;
  font-family:'Fredoka One',cursive; font-size:1.5rem; letter-spacing:1px; color:#fff;
  background:linear-gradient(135deg,#4D96FF,#C77DFF);
  box-shadow:0 8px 32px rgba(77,150,255,.45); transition:all .2s;
}
.btn-play:hover  { transform:translateY(-3px); box-shadow:0 14px 44px rgba(77,150,255,.55); }
.btn-play:active { transform:translateY(1px); }

/* ════════════════════════════════
   GAME SCREEN
════════════════════════════════ */
#gameScreen { gap:11px; }

/* Top bar / HUD — always horizontal */
.top-bar, .hud {
  width:100%; display:flex !important; flex-direction:row !important;
  align-items:stretch; gap:8px; flex-wrap:nowrap;
}
.hud-box {
  flex:1; background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.08); border-radius:16px;
  padding:10px 12px; text-align:center; min-width:0;
}
.hud-lbl { color:#333355; font-size:.55rem; font-weight:700; letter-spacing:2px; text-transform:uppercase; }
.hud-val { font-family:"Fredoka One",cursive; font-size:1.8rem; line-height:1.2; }
#scoreVal { color:#FFD93D; }
#levelVal { color:#4D96FF; }
.hud > div:not(.hud-box) { display:flex; flex-direction:column; align-items:center; justify-content:center; gap:5px; flex-shrink:0; }
.hud-mid { display:flex; flex-direction:column; align-items:center; justify-content:center; gap:5px; }
.diff-badge { padding:4px 13px; border-radius:99px; font-size:.6rem; font-weight:700; letter-spacing:2px; text-transform:uppercase; white-space:nowrap; }
.diff-badge.easy   { background:rgba(107,203,119,.12); color:#6BCB77; border:1px solid rgba(107,203,119,.4); }
.diff-badge.medium { background:rgba(255,217,61,.12);  color:#FFD93D; border:1px solid rgba(255,217,61,.4); }
.diff-badge.hard   { background:rgba(255,107,107,.12); color:#FF6B6B; border:1px solid rgba(255,107,107,.4); }
.mute-btn {
  background:rgba(255,255,255,.07); border:1px solid rgba(255,255,255,.1);
  border-radius:99px; padding:5px 10px; font-size:.85rem; cursor:pointer; color:#fff; transition:all .2s;
}
.mute-btn:hover { background:rgba(255,255,255,.15); }

/* Timer */
.timer-wrap { width:100%; }
.timer-track { width:100%; height:18px; background:rgba(255,255,255,.07); border-radius:99px; overflow:hidden; }
.timer-bar {
  height:100%; border-radius:99px;
  background:linear-gradient(90deg,#6BCB77,#4D96FF);
  transition:width .1s linear, background .6s;
  position:relative;
}
.timer-bar::after {
  content:''; position:absolute; right:2px; top:50%; transform:translateY(-50%);
  width:12px; height:12px; border-radius:50%;
  background:rgba(255,255,255,.9); box-shadow:0 0 10px #fff,0 0 20px rgba(255,255,255,.4);
}
.timer-row  { display:flex; justify-content:space-between; margin-top:4px; }
.timer-time { font-size:.72rem; color:#44445a; font-weight:700; }
.timer-hint { font-size:.7rem; color:#22223a; font-weight:600; }

/* Combo */
.combo-bar { width:100%; text-align:center; font-family:'Fredoka One',cursive; font-size:.9rem; color:transparent; min-height:24px; transition:all .2s; }
.combo-bar.on { color:#FF9A3C; text-shadow:0 0 25px #FF9A3C, 0 0 50px rgba(255,154,60,.4); }

/* Equation card */
.eq-card {
  width:100%; background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.09); border-radius:26px;
  padding:26px 20px; text-align:center;
  box-shadow:0 12px 50px rgba(0,0,0,.35);
  min-height:108px; display:flex; align-items:center; justify-content:center;
  position:relative; overflow:hidden;
}
.eq-card::before {
  content:''; position:absolute; inset:0;
  background:radial-gradient(ellipse at 50% 0%, rgba(255,255,255,.04), transparent 70%);
}
.eq-text { font-family:'Fredoka One',cursive; font-size:3rem; color:#fff; letter-spacing:5px; text-shadow:0 0 40px rgba(255,255,255,.12); }
.eq-text .op { color:#FFD93D; }
.eq-text .q  { color:#4D96FF; font-size:1.15em; animation:pulse 1s ease-in-out infinite; }
@keyframes pulse { 0%,100%{opacity:1;} 50%{opacity:.4;} }

/* Answer grid */
.ans-grid { width:100%; display:grid; gap:10px; }
.ans-grid.g2 { grid-template-columns:1fr 1fr; }
.ans-grid.g3 { grid-template-columns:1fr 1fr 1fr; }
.ans-grid.g6 { grid-template-columns:1fr 1fr 1fr; }

.ans-btn {
  padding:20px 8px; border:none; border-radius:20px; cursor:pointer; color:#fff;
  font-family:'Fredoka One',cursive; font-size:1.8rem;
  box-shadow:0 6px 22px rgba(0,0,0,.35), inset 0 1px 0 rgba(255,255,255,.2);
  position:relative; overflow:hidden; transition:transform .12s, filter .12s;
}
.ans-btn::after { content:''; position:absolute; inset:0; background:linear-gradient(to bottom,rgba(255,255,255,.13),transparent); pointer-events:none; }
.ans-btn:hover  { transform:translateY(-4px) scale(1.05); filter:brightness(1.2); }
.ans-btn:active { transform:scale(.95); }
.ans-btn.correct { animation:popC .4s ease; }
.ans-btn.wrong   { animation:shake .3s ease; }
.ans-btn.reveal  { filter:brightness(1.6) drop-shadow(0 0 12px rgba(255,255,255,.5)); transform:scale(1.06); }
@keyframes popC  { 0%{transform:scale(1);} 40%{transform:scale(1.2);} 100%{transform:scale(1);} }
@keyframes shake { 0%,100%{transform:translateX(0);} 25%{transform:translateX(-9px);} 75%{transform:translateX(9px);} }

.ans-btn:nth-child(1) { background:linear-gradient(145deg,#FF6B6B,#ff3548); }
.ans-btn:nth-child(2) { background:linear-gradient(145deg,#4D96FF,#2574e0); }
.ans-btn:nth-child(3) { background:linear-gradient(145deg,#6BCB77,#3db34a); }
.ans-btn:nth-child(4) { background:linear-gradient(145deg,#FFD93D,#f5a522); }
.ans-btn:nth-child(5) { background:linear-gradient(145deg,#C77DFF,#9b44e0); }
.ans-btn:nth-child(6) { background:linear-gradient(145deg,#FF9A3C,#e07818); }

/* Flash overlay */
.flash { position:absolute; inset:0; pointer-events:none; z-index:100; opacity:0; border-radius:26px; }
.flash.good { animation:fg .4s ease; }
.flash.bad  { animation:fb .4s ease; }
@keyframes fg { 0%,100%{opacity:0; background:rgba(107,203,119,.15);} 35%{opacity:1;} }
@keyframes fb { 0%,100%{opacity:0; background:rgba(255,71,87,.2);}    35%{opacity:1;} }

/* Score popup */
.spop {
  position:absolute; left:50%;
  font-family:'Fredoka One',cursive; font-size:2.2rem;
  pointer-events:none; z-index:200;
  animation:spopA .75s ease forwards;
  text-shadow:0 3px 12px rgba(0,0,0,.6);
}
@keyframes spopA {
  0%  { opacity:0; transform:translate(-50%,-40%) scale(.5); }
  40% { opacity:1; transform:translate(-50%,-70%) scale(1.15); }
  100%{ opacity:0; transform:translate(-50%,-120%) scale(.85); }
}

/* Level up banner */
.lvl-banner {
  position:absolute; top:38%; left:50%; transform:translate(-50%,-50%);
  font-family:'Fredoka One',cursive; font-size:2.4rem; color:#fff; text-align:center;
  pointer-events:none; z-index:300; white-space:nowrap;
  background:rgba(13,13,26,.88); backdrop-filter:blur(10px);
  padding:18px 36px; border-radius:20px;
  border:2px solid rgba(255,217,61,.5); box-shadow:0 0 60px rgba(255,217,61,.3);
  animation:lvlA .9s ease forwards;
}
@keyframes lvlA {
  0%  { opacity:0; transform:translate(-50%,-50%) scale(.6); }
  30% { opacity:1; transform:translate(-50%,-50%) scale(1.05); }
  70% { opacity:1; transform:translate(-50%,-50%) scale(1); }
  100%{ opacity:0; transform:translate(-50%,-56%) scale(.9); }
}

/* ════════════════════════════════
   GAME OVER SCREEN
════════════════════════════════ */
#overScreen { gap:14px; }
.over-card {
  background:rgba(255,255,255,.04); backdrop-filter:blur(24px);
  border:1px solid rgba(255,255,255,.09); border-radius:28px;
  padding:32px 26px; width:100%; text-align:center;
  box-shadow:0 24px 70px rgba(0,0,0,.55);
}
.over-emoji { font-size:4.5rem; display:block; margin-bottom:10px; animation:bounceIn .5s cubic-bezier(.36,.07,.19,.97) both; }
@keyframes bounceIn { 0%{transform:scale(0);} 60%{transform:scale(1.25);} 100%{transform:scale(1);} }
.over-title { font-family:'Fredoka One',cursive; font-size:2.3rem; color:#fff; margin-bottom:6px; }
.over-sub   { color:#44445a; font-size:.68rem; font-weight:700; letter-spacing:2px; text-transform:uppercase; margin-bottom:4px; }
.over-score {
  font-family:'Fredoka One',cursive; font-size:5.5rem; line-height:1;
  background:linear-gradient(135deg,#FF6B6B,#FFD93D,#6BCB77);
  -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text;
}
.best-badge {
  display:inline-block; margin:8px 0 2px;
  background:linear-gradient(135deg,#FFD93D,#FF9A3C);
  color:#111; font-weight:900; font-size:.78rem; padding:4px 16px; border-radius:99px; letter-spacing:1px;
}
.prev-best { color:#2a2a40; font-size:.78rem; font-weight:700; margin-bottom:10px; }
.over-stats { display:flex; gap:8px; margin:16px 0; }
.stat-item {
  flex:1; background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.07); border-radius:16px; padding:12px 8px;
}
.stat-icon { font-size:1.3rem; display:block; margin-bottom:2px; }
.stat-lbl  { color:#2a2a40; font-size:.58rem; font-weight:700; letter-spacing:2px; text-transform:uppercase; }
.stat-val  { font-family:'Fredoka One',cursive; font-size:1.6rem; }
.btn-retry {
  width:100%; padding:17px; border:none; border-radius:18px; cursor:pointer;
  font-family:'Fredoka One',cursive; font-size:1.4rem; color:#fff;
  background:linear-gradient(135deg,#FF6B6B,#FF9A3C);
  box-shadow:0 8px 32px rgba(255,107,107,.4); transition:all .2s;
  margin-bottom:10px;
}
.btn-retry:hover  { transform:translateY(-3px); box-shadow:0 14px 44px rgba(255,107,107,.5); }
.btn-retry:active { transform:translateY(1px); }
.btn-menu2 {
  width:100%; padding:13px; border:1px solid rgba(255,255,255,.1); border-radius:16px;
  cursor:pointer; font-family:'Fredoka One',cursive; font-size:1.1rem;
  background:transparent; color:#44445a; transition:all .2s;
}
.btn-menu2:hover { border-color:rgba(255,255,255,.25); color:#aaa; }

/* ── LEADERBOARD ── */
.leaderboard {
  width:100%; margin-top:4px;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.09); border-radius:20px;
  padding:16px 18px;
}
.lb-title {
  font-family:'Fredoka One',cursive; font-size:1rem; color:#aaa;
  letter-spacing:3px; text-transform:uppercase;
  margin-bottom:12px; text-align:center;
}
.lb-title span { color:#FFD93D; }
.lb-row {
  display:flex; align-items:center; justify-content:space-between;
  padding:8px 12px; border-radius:12px; margin-bottom:6px;
  background:rgba(255,255,255,.04); border:1px solid rgba(255,255,255,.06);
  transition: all .3s;
}
.lb-row.lb-current {
  background:rgba(255,217,61,.08);
  border-color:rgba(255,217,61,.3);
  box-shadow: 0 0 14px rgba(255,217,61,.15);
}
.lb-diff {
  display:flex; align-items:center; gap:8px;
  font-family:'Fredoka One',cursive; font-size:.95rem; color:#777;
}
.lb-diff .lb-icon { font-size:1.1rem; }
.lb-diff.easy-d  { color:#6BCB77; }
.lb-diff.medium-d{ color:#FFD93D; }
.lb-diff.hard-d  { color:#FF6B6B; }
.lb-score-wrap { display:flex; align-items:center; gap:8px; }
.lb-score {
  font-family:'Fredoka One',cursive; font-size:1.4rem; color:#fff;
}
.lb-score.lb-zero { color:#333355; font-size:1rem; }
.lb-crown { font-size:1rem; animation:crownBob .8s ease-in-out infinite; }
@keyframes crownBob { 0%,100%{transform:translateY(0);} 50%{transform:translateY(-3px);} }
.lb-new-tag {
  font-size:.6rem; font-weight:800; letter-spacing:1px; padding:2px 8px;
  background:linear-gradient(135deg,#FFD93D,#FF9A3C); color:#111;
  border-radius:99px; text-transform:uppercase;
  animation: newTagPop .4s cubic-bezier(.36,.07,.19,.97) both;
}
@keyframes newTagPop { 0%{transform:scale(0);} 70%{transform:scale(1.2);} 100%{transform:scale(1);} }

/* ── TOUCH OPTIMIZATION ── */
button, .ans-btn, .diff-btn, .tog, .mute-btn, .btn-play, .btn-retry, .btn-menu2 {
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}
.ans-btn { cursor: pointer; }

/* ── LEADERBOARD SCREEN ── */
#lbScreen { gap:14px; }
.lb-screen-card {
  background:rgba(255,255,255,.04); backdrop-filter:blur(24px);
  border:1px solid rgba(255,255,255,.09); border-radius:26px;
  padding:28px 24px; width:100%;
  box-shadow:0 24px 70px rgba(0,0,0,.55);
}
.lb-screen-title {
  font-family:'Fredoka One',cursive; font-size:2rem; color:#fff;
  text-align:center; margin-bottom:6px;
  display:flex; align-items:center; justify-content:center; gap:10px;
}
.lb-screen-title .trophy { font-size:2rem; animation:crownBob .9s ease-in-out infinite; }
.lb-sub { color:#333355; font-size:.68rem; font-weight:700; letter-spacing:3px; text-transform:uppercase; text-align:center; margin-bottom:20px; }

.lb-entry {
  display:flex; align-items:center; justify-content:space-between;
  padding:14px 18px; border-radius:16px; margin-bottom:10px;
  border:1px solid rgba(255,255,255,.06); background:rgba(255,255,255,.04);
  transition:all .3s;
}
.lb-entry.easy-e   { border-color:rgba(107,203,119,.25); background:rgba(107,203,119,.06); }
.lb-entry.medium-e { border-color:rgba(255,217,61,.25);  background:rgba(255,217,61,.06); }
.lb-entry.hard-e   { border-color:rgba(255,107,107,.25); background:rgba(255,107,107,.06); }

.lb-entry-left { display:flex; align-items:center; gap:12px; }
.lb-entry-icon { font-size:2rem; }
.lb-entry-name { font-family:'Fredoka One',cursive; font-size:1.1rem; color:#ccc; }
.lb-entry-sub  { font-size:.65rem; color:#444466; font-weight:700; letter-spacing:1px; text-transform:uppercase; margin-top:1px; }

.lb-entry-score {
  font-family:'Fredoka One',cursive; font-size:2.2rem;
}
.lb-entry-score.easy-s   { color:#6BCB77; text-shadow:0 0 20px rgba(107,203,119,.4); }
.lb-entry-score.medium-s { color:#FFD93D; text-shadow:0 0 20px rgba(255,217,61,.4); }
.lb-entry-score.hard-s   { color:#FF6B6B; text-shadow:0 0 20px rgba(255,107,107,.4); }
.lb-entry-score.empty-s  { color:#222240; font-size:1.5rem; }

.btn-lbback {
  width:100%; padding:15px; border:1px solid rgba(255,255,255,.12); border-radius:18px;
  cursor:pointer; font-family:'Fredoka One',cursive; font-size:1.2rem;
  background:transparent; color:#7777aa; transition:all .2s;
}
.btn-lbback:hover { border-color:rgba(255,255,255,.28); color:#aaa; }

/* btn leaderboard in menu */
/* ── BUTTON ICON (inline SVG) — always small ── */
.btn-icon, .btn-icon svg {
  width:18px !important; height:18px !important;
  min-width:18px; flex-shrink:0;
  vertical-align:middle;
}

.btn-lb {
  width:100%; padding:12px 16px; margin-top:8px; border:1px solid rgba(255,255,255,.1); border-radius:16px;
  cursor:pointer; font-family:'Fredoka One',cursive; font-size:1rem;
  background:rgba(255,255,255,.04); color:#7777aa; transition:all .2s;
  display:flex; align-items:center; justify-content:center; gap:8px;
  touch-action:manipulation; -webkit-tap-highlight-color:transparent; user-select:none;
}
.btn-lb:hover { background:rgba(255,255,255,.08); border-color:rgba(255,217,61,.3); color:#FFD93D; }

.btn-daily {
  width:100%; padding:12px 16px; margin-top:8px; border:1px solid rgba(255,217,61,.3); border-radius:16px;
  cursor:pointer; font-family:'Fredoka One',cursive; font-size:1rem;
  background:rgba(255,217,61,.07); color:#FFD93D; transition:all .2s;
  display:flex; align-items:center; justify-content:center; gap:8px;
  touch-action:manipulation; -webkit-tap-highlight-color:transparent; user-select:none;
}
.btn-daily:hover { background:rgba(255,217,61,.14); border-color:rgba(255,217,61,.5); box-shadow:0 0 16px rgba(255,217,61,.2); }
.btn-daily.daily-done { opacity:.5; border-color:rgba(255,255,255,.1); color:#555; cursor:default; pointer-events:none; }

/* ── LEVEL UP PARTICLES ── */
.particle {
  position:absolute; pointer-events:none; z-index:400;
  border-radius:50%; animation:particleFly var(--dur) ease forwards;
}
@keyframes particleFly {
  0%   { opacity:1; transform:translate(0,0) scale(1); }
  100% { opacity:0; transform:translate(var(--tx),var(--ty)) scale(0); }
}

/* ── STREAK GLOW on eq-card ── */
.eq-card.streak-glow { animation:streakPulse .5s ease; }
@keyframes streakPulse {
  0%,100% { box-shadow:0 12px 50px rgba(0,0,0,.35); }
  40%     { box-shadow:0 0 0 4px rgba(255,217,61,.5), 0 12px 60px rgba(255,217,61,.3); }
}

/* ── SCORE BOUNCE on HUD ── */
.hud-val.pop { animation:hudPop .25s ease; }
@keyframes hudPop { 0%{transform:scale(1);} 50%{transform:scale(1.35);} 100%{transform:scale(1);} }

/* ── MENU SECONDARY BUTTONS ── */
.menu-row2 { display:flex; gap:8px; margin-top:8px; width:100%; }
.btn-sm {
  flex:1; padding:11px 6px; border:1px solid rgba(255,255,255,.1); border-radius:14px;
  cursor:pointer; font-family:'Fredoka One',cursive; font-size:.82rem;
  background:rgba(255,255,255,.04); color:#6666aa; transition:all .2s;
  display:flex; align-items:center; justify-content:center; gap:5px;
  touch-action:manipulation; -webkit-tap-highlight-color:transparent; user-select:none;
}
.btn-sm:hover { background:rgba(255,255,255,.09); color:#ccc; }
.btn-sm.danger:hover { border-color:rgba(255,107,107,.4); color:#FF6B6B; background:rgba(255,107,107,.07); }
/* ── DAILY BADGE in HUD ── */
.daily-badge {
  font-family:'Fredoka One',cursive; font-size:.62rem; letter-spacing:2px;
  background:linear-gradient(135deg,#FFD93D,#FF9A3C); color:#111;
  border-radius:99px; padding:2px 10px; text-transform:uppercase;
  animation:dailyPulse 2s ease-in-out infinite; margin-top:3px;
}
@keyframes dailyPulse { 0%,100%{box-shadow:0 0 6px rgba(255,217,61,.3);} 50%{box-shadow:0 0 16px rgba(255,217,61,.7);} }

/* ── ACHIEVEMENTS SCREEN ── */
#achScreen { gap:10px; }
.ach-card {
  background:rgba(255,255,255,.04); backdrop-filter:blur(24px);
  border:1px solid rgba(255,255,255,.09); border-radius:26px;
  padding:20px 16px; width:100%; max-height:72vh; overflow-y:auto;
  box-shadow:0 24px 70px rgba(0,0,0,.55);
}
.ach-title { font-family:'Fredoka One',cursive; font-size:1.8rem; color:#fff; text-align:center; margin-bottom:4px; }
.ach-sub { color:#333355; font-size:.65rem; font-weight:700; letter-spacing:3px; text-transform:uppercase; text-align:center; margin-bottom:14px; }
.ach-count { font-family:'Fredoka One',cursive; font-size:.9rem; color:#FFD93D; text-align:center; margin-bottom:14px; }
.ach-grid { display:grid; grid-template-columns:1fr 1fr; gap:8px; }
.ach-item {
  display:flex; flex-direction:column; align-items:center; gap:4px;
  padding:12px 8px; border-radius:14px; border:1px solid rgba(255,255,255,.06);
  background:rgba(255,255,255,.03); text-align:center; transition:all .4s;
}
.ach-item.unlocked { border-color:rgba(255,217,61,.3); background:rgba(255,217,61,.07); box-shadow:0 0 14px rgba(255,217,61,.1); }
.ach-item.locked { filter:grayscale(.9); opacity:.35; }
.ach-icon { font-size:1.7rem; line-height:1; }
.ach-name { font-family:'Fredoka One',cursive; font-size:.78rem; color:#ddd; line-height:1.2; }
.ach-desc { font-size:.58rem; color:#555577; line-height:1.3; }
.ach-date { font-size:.52rem; color:#FFD93D; margin-top:2px; }

/* ── NEW ACHIEVEMENT TOAST ── */
.ach-toast {
  position:absolute; bottom:80px; left:50%; transform:translateX(-50%) translateY(30px);
  background:linear-gradient(135deg,#1a1230,#0d0826);
  border:1px solid rgba(255,217,61,.4); border-radius:16px;
  padding:10px 18px; display:flex; align-items:center; gap:10px;
  z-index:500; opacity:0; pointer-events:none;
  transition:all .4s cubic-bezier(.36,.07,.19,.97);
  white-space:nowrap; box-shadow:0 0 30px rgba(255,217,61,.2);
}
.ach-toast.show { opacity:1; transform:translateX(-50%) translateY(0); }
.ach-toast-icon { font-size:1.5rem; }
.ach-toast-text { display:flex; flex-direction:column; }
.ach-toast-label { font-size:.58rem; color:#FFD93D; font-weight:700; letter-spacing:2px; text-transform:uppercase; }
.ach-toast-name  { font-family:'Fredoka One',cursive; font-size:.9rem; color:#fff; }

/* ── STATS SCREEN ── */
#statsScreen { gap:10px; }
.stats-card {
  background:rgba(255,255,255,.04); backdrop-filter:blur(24px);
  border:1px solid rgba(255,255,255,.09); border-radius:26px;
  padding:22px 18px; width:100%;
  box-shadow:0 24px 70px rgba(0,0,0,.55);
}
.stats-title { font-family:'Fredoka One',cursive; font-size:1.8rem; color:#fff; text-align:center; margin-bottom:4px; }
.stats-sub { color:#333355; font-size:.65rem; font-weight:700; letter-spacing:3px; text-transform:uppercase; text-align:center; margin-bottom:18px; }
.stats-grid { display:grid; grid-template-columns:1fr 1fr; gap:10px; width:100%; }
.stats-box { background:rgba(255,255,255,.06); border:1px solid rgba(255,255,255,.08); border-radius:16px; padding:14px 12px; text-align:center; }
.stats-wide { grid-column:1/-1; }
.stats-val { font-family:"Fredoka One",cursive; font-size:2.4rem; line-height:1.1; font-weight:700; }
.stats-lbl { font-size:.65rem; font-weight:700; letter-spacing:2px; text-transform:uppercase; color:#555577; margin-top:4px; }
.stat-box {
  padding:14px 10px; border-radius:16px; text-align:center;
  border:1px solid rgba(255,255,255,.07); background:rgba(255,255,255,.04);
}
.stat-box-val { font-family:'Fredoka One',cursive; font-size:1.9rem; line-height:1; margin-bottom:4px; }
.stat-box-lbl { font-size:.58rem; color:#444466; font-weight:700; letter-spacing:2px; text-transform:uppercase; }
.stat-box.s1 .stat-box-val{color:#4D96FF;} .stat-box.s2 .stat-box-val{color:#6BCB77;}
.stat-box.s3 .stat-box-val{color:#FF6B6B;} .stat-box.s4 .stat-box-val{color:#FF9A3C;}
.stat-box.s5 .stat-box-val{color:#C77DFF;} .stat-box.s6 .stat-box-val{color:#FFD93D;}
.stat-box.wide { grid-column:1/3; }

/* ── RESET MODAL ── */
#resetModal {
  display:none; position:fixed; inset:0; z-index:900;
  align-items:center; justify-content:center;
  background:rgba(2,2,18,.85); backdrop-filter:blur(18px);
}
#resetModal.open { display:flex; animation:modalIn .25s ease; }
@keyframes modalIn { from{opacity:0;transform:scale(.9);} to{opacity:1;transform:scale(1);} }
.reset-box {
  background:linear-gradient(155deg,#0d0a2e 0%,#160a2a 50%,#0a0820 100%);
  border:1px solid rgba(255,107,107,.35); border-radius:28px;
  padding:32px 28px; width:min(360px,88vw); text-align:center;
  box-shadow:0 0 60px rgba(255,107,107,.18), 0 30px 80px rgba(0,0,0,.8);
  position:relative; overflow:hidden;
}
.reset-box::before {
  content:''; position:absolute; inset:0; border-radius:28px;
  background:radial-gradient(ellipse at 50% 0%,rgba(255,107,107,.12),transparent 65%);
  pointer-events:none;
}
.reset-warning { font-size:3.2rem; margin-bottom:14px; display:block; animation:warningShake .6s ease .15s both; }
@keyframes warningShake {
  0%,100%{transform:rotate(0);} 20%{transform:rotate(-8deg);} 40%{transform:rotate(8deg);} 60%{transform:rotate(-5deg);} 80%{transform:rotate(5deg);}
}
.reset-title {
  font-family:'Fredoka One',cursive; font-size:1.7rem; color:#fff;
  margin-bottom:8px; text-shadow:0 0 24px rgba(255,107,107,.5);
}
.reset-desc { font-size:.78rem; color:#555577; line-height:1.6; margin-bottom:26px; }
.reset-desc strong { color:#FF6B6B; }
.reset-btns { display:flex; gap:12px; }
.btn-cancel {
  flex:1; padding:14px; border:1px solid rgba(255,255,255,.12); border-radius:16px;
  cursor:pointer; font-family:'Fredoka One',cursive; font-size:1rem;
  background:transparent; color:#6666aa; transition:all .2s;
  touch-action:manipulation; -webkit-tap-highlight-color:transparent;
}
.btn-cancel:hover { border-color:rgba(255,255,255,.3); color:#aaa; }
.btn-confirm-reset {
  flex:1; padding:14px; border:none; border-radius:16px;
  cursor:pointer; font-family:'Fredoka One',cursive; font-size:1rem;
  background:linear-gradient(135deg,#FF6B6B,#ff3548); color:#fff;
  box-shadow:0 6px 24px rgba(255,107,107,.4); transition:all .2s;
  touch-action:manipulation; -webkit-tap-highlight-color:transparent;
}
.btn-confirm-reset:hover { transform:translateY(-2px); box-shadow:0 10px 30px rgba(255,107,107,.6); }

/* ── SHARE BUTTON (game over) ── */
.btn-share {
  width:100%; padding:13px; margin-top:6px; border:1px solid rgba(107,203,119,.25); border-radius:16px;
  cursor:pointer; font-family:'Fredoka One',cursive; font-size:.95rem;
  background:rgba(107,203,119,.05); color:#6BCB77; transition:all .2s;
  align-items:center; justify-content:center; gap:8px; display:none;
  touch-action:manipulation; -webkit-tap-highlight-color:transparent;
}
.btn-share.visible { display:flex; }
.btn-share:hover { background:rgba(107,203,119,.14); border-color:rgba(107,203,119,.5); }