<style>
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  /* dark theme - file-specific */
  --bg: #0a0d14; --card-bg: #121820;
  --text: #f4f0ea; --muted: #8a8070;
}
html { height:100%; height:-webkit-fill-available; }
button:focus-visible, a:focus-visible, [tabindex]:focus-visible { outline: 2.5px solid var(--accent2, #f5c842); outline-offset: 2px; }
body {
  font-family: 'Noto Sans',-apple-system,'Segoe UI',system-ui,sans-serif;
  background:var(--bg); color:var(--text);
  min-height:100vh; min-height:-webkit-fill-available;
  overflow:hidden; user-select:none;
  -webkit-tap-highlight-color:transparent;
}
body::before {
  content:''; position:fixed; inset:0; pointer-events:none;
  background:
    radial-gradient(ellipse 60% 50% at 15% 60%,rgba(232,132,90,.12) 0%,transparent 70%),
    radial-gradient(ellipse 50% 40% at 85% 25%,rgba(245,200,66,.1) 0%,transparent 70%);
}

/* ══ SCREENS ══ */
.screen { display:none; position:fixed; inset:0; flex-direction:column; }
.screen.active { display:flex; }

/* ══════════════════════════
   HOME SCREEN
══════════════════════════ */
#home-screen {
  align-items:center; justify-content:center; gap:0;
  padding: calc(20px + var(--sat)) 24px calc(20px + var(--sab));
  position:relative;
}
#sound-toggle {
  position:absolute; top:calc(12px + var(--sat)); right:14px;
  background:rgba(255,255,255,.08); border:1px solid rgba(255,255,255,.12);
  border-radius:50%; width:38px; height:38px; font-size:1.1rem;
  cursor:pointer; display:flex; align-items:center; justify-content:center;
  transition:background .2s, transform .15s;
  z-index:10;
}
#sound-toggle:hover { background:rgba(255,255,255,.15); transform:scale(1.08); }
#back-to-main {
  position:absolute; top:calc(12px + var(--sat)); left:14px;
  color:var(--muted); text-decoration:none; font-size:.78rem; font-weight:700;
  letter-spacing:.04em; padding:6px 10px; border-radius:8px;
  border:1px solid rgba(255,255,255,.1); background:rgba(255,255,255,.05);
  transition:color .2s, background .2s; z-index:10;
}
#back-to-main:hover { color:var(--text); background:rgba(255,255,255,.1); }
.home-logo { font-size:4rem; margin-bottom:4px; filter:drop-shadow(0 0 30px rgba(232,132,90,.5)); }
.home-title { font-size:1.6rem; font-weight:900; color:var(--accent2); margin-bottom:4px; }
.home-sub { font-size:.82rem; color:var(--muted); margin-bottom:32px; }

/* Level picker on home */
#home-level-wrap { display:flex; gap:8px; flex-wrap:wrap; justify-content:center; margin-bottom:32px; }
.home-lvl-btn {
  border:1px solid rgba(255,255,255,.13); background:rgba(255,255,255,.05);
  color:var(--muted); border-radius:50px; font-size:.82rem; font-weight:700;
  padding:8px 18px; cursor:pointer; transition:all .2s; min-height:40px;
}
.home-lvl-btn.active { background:var(--accent); color:#fff; border-color:var(--accent); }

/* Game cards — 2-column grid, row layout trong card để compact */
.game-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  width: 100%;
  max-width: 520px;
}
/* Card thứ 5 (Quiz) chiếm full width */
.game-card:nth-child(5) {
  grid-column: 1 / -1;
}
.game-card {
  border-radius: 18px;
  padding: 14px 16px;
  cursor: pointer;
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 14px;
  border: 1px solid rgba(255,255,255,.08);
  transition: transform .15s, box-shadow .15s;
  -webkit-tap-highlight-color: transparent;
}
.game-card:active { transform:scale(.97); }
.game-card-1 { background:linear-gradient(135deg,#0d1428,#2d3561); box-shadow:0 8px 32px rgba(232,132,90,.2); }
.game-card-2 { background:linear-gradient(135deg,#1a2e1e,#1b6940); box-shadow:0 8px 32px rgba(16,185,129,.2); }
.game-card-3 { background:linear-gradient(135deg,#2e1a1e,#691b3a); box-shadow:0 8px 32px rgba(245,200,66,.2); }
.game-icon { font-size: 1.9rem; flex-shrink: 0; line-height: 1; }
.game-info { flex: 1; min-width: 0; }
.game-name { font-size: .88rem; font-weight: 800; color: var(--text); margin-bottom: 2px; }
.game-desc { font-size: .68rem; color: var(--muted); line-height: 1.35; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.game-badge {
  font-size: .6rem; font-weight: 700; padding: 2px 8px; border-radius: 50px; margin-top: 5px;
  background: rgba(232,132,90,.2); color: var(--accent); border: 1px solid rgba(232,132,90,.3);
  display: inline-block;
}
.game-card-2 .game-badge { background:rgba(16,185,129,.2); color:var(--correct); border-color:rgba(16,185,129,.3); }
.game-card-3 .game-badge { background:rgba(245,200,66,.2); color:var(--accent2); border-color:rgba(245,200,66,.3); }

/* ══════════════════════════
   FLASHCARD SCREEN (Game 1)
══════════════════════════ */
#flash-screen { background:var(--bg); }

#header {
  position:relative; display:flex; align-items:center; justify-content:space-between;
  padding:calc(10px + var(--sat)) 14px 10px; z-index:20;
  background:rgba(15,15,26,.85); backdrop-filter:blur(10px); -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(255,255,255,.07); gap:8px; flex-shrink:0;
}
#header h1 { font-size:.95rem; font-weight:800; color:var(--accent2); white-space:nowrap; }
.hdr-back { font-size:1.1rem; cursor:pointer; padding:4px 6px; color:var(--muted); }
#progress-text { font-size:.82rem; color:var(--muted); }
#score-display { font-size:.82rem; display:flex; gap:10px; }
.score-correct { color:var(--correct); font-weight:700; }
.score-incorrect { color:var(--incorrect); font-weight:700; }

#mode-bar {
  display:flex; align-items:center; justify-content:center; gap:6px; flex-wrap:wrap;
  padding:7px 12px; flex-shrink:0;
  background:rgba(15,15,26,.75); backdrop-filter:blur(8px); -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid rgba(255,255,255,.05);
}
#timer-select-wrap { display:none; align-items:center; gap:5px; }
#timer-select-wrap span { font-size:.72rem; color:#fca5a5; }
.timer-btn {
  border:1px solid rgba(239,68,68,.3); background:rgba(239,68,68,.08);
  color:#fca5a5; border-radius:50px; font-size:.72rem; font-weight:700;
  padding:5px 12px; cursor:pointer; min-height:34px;
}
.timer-btn.active-timer { background:#7f1d1d; border-color:var(--incorrect); color:#fff; }
.mode-btn {
  border:1px solid rgba(255,255,255,.15); background:rgba(255,255,255,.06);
  color:var(--muted); border-radius:50px; font-size:.78rem;
  font-weight:700; padding:6px 18px; cursor:pointer; min-height:36px;
}
.mode-btn.active-easy { background:#166534; color:#86efac; border-color:var(--correct); }
.mode-btn.active-hard { background:#7f1d1d; color:#fca5a5; border-color:var(--incorrect); }

#progress-bar-wrap { height:4px; background:rgba(255,255,255,.08); flex-shrink:0; position:relative; }
#progress-bar { height:100%; background:linear-gradient(90deg,var(--accent),var(--accent2)); transition:width .4s; border-radius:2px; width:0%; }
#timer-wrap { height:5px; background:rgba(255,255,255,.08); display:none; flex-shrink:0; }
#timer-bar { height:100%; width:100%; background:linear-gradient(90deg,#ef4444,#f59e0b); transform-origin:left; }

#flash-body {
  flex:1; display:flex; flex-direction:column; align-items:center; justify-content:center;
  padding:8px 14px; position:relative; overflow:hidden;
}
#instruction {
  font-size:.72rem; border-radius:50px; padding:4px 14px; margin-bottom:10px;
  pointer-events:none; white-space:nowrap;
}
#instruction.easy-inst { background:rgba(200,80,40,.2); border:1px solid rgba(200,80,40,.4); color:var(--accent2); }
#instruction.hard-inst { background:rgba(239,68,68,.2); border:1px solid rgba(239,68,68,.4); color:#fca5a5; }
#streak-badge { font-size:.82rem; font-weight:800; color:#fb923c; display:none; position:absolute; top:12px; right:16px; }

#card-wrap { perspective:1200px; width:min(420px,94vw); height:min(440px,54vh); }
#card {
  width:100%; height:100%; position:relative;
  transform-style:preserve-3d; transition:transform .45s cubic-bezier(.4,0,.2,1);
  border-radius:var(--radius); cursor:pointer;
}
#card.flipped { transform:rotateY(180deg); }
#card.flash-correct  { animation:fC .4s ease; }
#card.flash-incorrect { animation:fI .4s ease; }
@keyframes fC { 0%{box-shadow:0 20px 50px rgba(0,0,0,.5)} 35%{box-shadow:0 0 0 6px var(--correct),0 20px 50px rgba(34,197,94,.4);transform:scale(1.03)} 100%{box-shadow:0 20px 50px rgba(0,0,0,.5)} }
@keyframes fI { 0%{box-shadow:0 20px 50px rgba(0,0,0,.5)} 35%{box-shadow:0 0 0 6px var(--incorrect),0 20px 50px rgba(239,68,68,.4);transform:scale(.97)} 100%{box-shadow:0 20px 50px rgba(0,0,0,.5)} }
.card-face {
  position:absolute; inset:0; border-radius:var(--radius);
  backface-visibility:hidden; -webkit-backface-visibility:hidden;
  display:flex; flex-direction:column; overflow:hidden;
  border:1px solid rgba(255,255,255,.08); box-shadow:0 20px 50px rgba(0,0,0,.5);
}
#card-front { background:var(--card-bg); }
#kanji-area {
  flex:1; display:flex; flex-direction:column; align-items:center; justify-content:center;
  background:linear-gradient(145deg,#0d1428,#2d3561);
  border-bottom:3px solid var(--accent); position:relative; gap:5px;
}
#kanji-area.hard-glow { border-bottom-color:var(--incorrect); }
#kanji-area::after { content:''; position:absolute; inset:0; background:radial-gradient(circle at 50% 50%,rgba(200,80,40,.15),transparent 70%); }
#kanji { font-size:clamp(4.5rem,20vw,7.5rem); line-height:1; font-weight:900; color:#fff; text-shadow:0 0 40px rgba(200,80,40,.8),0 0 80px rgba(245,158,11,.3); position:relative; z-index:1; }
#han-viet { font-size:.95rem; color:var(--accent2); font-weight:700; letter-spacing:.1em; position:relative; z-index:1; }
#hard-reading { display:none; font-size:.85rem; color:#cbd5e1; position:relative; z-index:1; text-align:center; line-height:1.6; margin-top:4px; }
#meaning-area { padding:14px 16px 10px; display:flex; flex-direction:column; align-items:center; gap:5px; transition:opacity .3s; }
#meaning-area.hidden { opacity:0; pointer-events:none; }
#shown-meaning { font-size:clamp(.95rem,3.8vw,1.2rem); font-weight:700; text-align:center; color:var(--text); }
#reading-on  { font-size:.88rem; color:#f5a87a; font-weight:600; }
#reading-kun { font-size:.88rem; color:#93c5fd; font-weight:600; }
#verdict-badge { display:none; padding:3px 13px; border-radius:50px; font-size:.74rem; font-weight:700; margin-top:2px; }
#verdict-badge.cb { background:rgba(34,197,94,.2); color:var(--correct); border:1px solid var(--correct); display:inline-block; }
#verdict-badge.wb { background:rgba(239,68,68,.2); color:var(--incorrect); border:1px solid var(--incorrect); display:inline-block; }
#verdict-hint { font-size:.68rem; color:var(--muted); }
#card-back {
  background:linear-gradient(145deg,#1a1a2e,#16213e); transform:rotateY(180deg);
  display:flex; align-items:center; justify-content:center;
  flex-direction:column; gap:10px; padding:24px; text-align:center;
}
#back-kanji { font-size:3.2rem; opacity:.12; }
#back-content { font-size:.88rem; line-height:1.8; color:var(--muted); }
#back-content strong { color:var(--text); }
.correct-meaning { color:var(--correct); font-weight:700; }

#feedback { position:fixed; inset:0; z-index:50; display:flex; align-items:center; justify-content:center; font-size:7rem; pointer-events:none; opacity:0; }
#feedback.show { animation:fbPop .4s ease forwards; }
@keyframes fbPop { 0%{opacity:0;transform:scale(.5)} 40%{opacity:1;transform:scale(1.2)} 100%{opacity:0;transform:scale(1)} }

#flash-controls {
  display:flex; align-items:center; justify-content:center; gap:10px;
  padding:12px 14px calc(12px + var(--sab)); flex-shrink:0;
  background:rgba(15,15,26,.9); backdrop-filter:blur(10px); -webkit-backdrop-filter:blur(10px);
  border-top:1px solid rgba(255,255,255,.07);
}
.btn {
  border:none; cursor:pointer; border-radius:50px;
  font-size:.8rem; font-weight:700; letter-spacing:.04em;
  padding:13px 18px; transition:all .15s; text-transform:uppercase;
  min-height:48px; -webkit-tap-highlight-color:transparent; touch-action:manipulation;
}
.btn:active { transform:scale(.94); opacity:.85; }
#btn-correct   { background:linear-gradient(135deg,#166534,var(--correct)); color:#fff; box-shadow:0 4px 18px rgba(34,197,94,.3); flex:1; max-width:120px; }
#btn-incorrect { background:linear-gradient(135deg,#991b1b,var(--incorrect)); color:#fff; box-shadow:0 4px 18px rgba(239,68,68,.3); flex:1; max-width:120px; }
#btn-flip  { background:linear-gradient(135deg,var(--accent),#c45528); color:#fff; flex:1; max-width:100px; }
#btn-shuffle { background:rgba(255,255,255,.08); color:var(--muted); border:1px solid rgba(255,255,255,.12); padding:13px 14px; }
.btn-wrap { display:flex; flex:1; max-width:120px; }
.btn-wrap .btn { width:100%; }

/* Modals */
#modal-overlay { display:none; position:fixed; inset:0; z-index:100; background:rgba(0,0,0,.8); backdrop-filter:blur(8px); -webkit-backdrop-filter:blur(8px); align-items:center; justify-content:center; padding:20px; }
#modal-overlay.visible { display:flex; }
#modal { background:#0d1428; border-radius:28px; border:1px solid rgba(255,255,255,.1); padding:32px 26px; text-align:center; max-width:360px; width:100%; box-shadow:0 30px 80px rgba(0,0,0,.7); display:flex; flex-direction:column; gap:12px; }
#modal-emoji { font-size:3.2rem; }
#modal-title { font-size:1.5rem; font-weight:900; }
#modal-streak { font-size:3rem; font-weight:900; background:linear-gradient(135deg,var(--correct),var(--accent2)); -webkit-background-clip:text; -webkit-text-fill-color:transparent; }
#modal-detail { font-size:.9rem; color:var(--muted); line-height:1.6; }
#modal-btn { background:linear-gradient(135deg,var(--accent),var(--accent2)); color:#fff; padding:14px 32px; font-size:.9rem; }
#done-screen { display:none; position:fixed; inset:0; z-index:100; background:var(--bg); flex-direction:column; align-items:center; justify-content:center; gap:14px; text-align:center; padding:28px; }
#done-screen.visible { display:flex; }
#done-screen h2 { font-size:2rem; font-weight:900; }
.big-score { font-size:3.2rem; font-weight:900; background:linear-gradient(135deg,var(--correct),var(--accent2)); -webkit-background-clip:text; -webkit-text-fill-color:transparent; }
#done-screen p { color:var(--muted); font-size:.95rem; }
#btn-restart { background:linear-gradient(135deg,var(--accent),var(--accent2)); color:#fff; padding:14px 34px; font-size:.9rem; }
#btn-home-from-done { background:rgba(255,255,255,.08); color:var(--muted); border:1px solid rgba(255,255,255,.12); padding:12px 28px; font-size:.85rem; }

/* ══════════════════════════
   MATCH GAME SCREEN (Game 2)
══════════════════════════ */
#match-screen { background:var(--bg); }

#match-header {
  display:flex; align-items:center; justify-content:space-between;
  padding:calc(10px + var(--sat)) 14px 10px; flex-shrink:0;
  background:rgba(15,15,26,.85); backdrop-filter:blur(10px); -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(255,255,255,.07); gap:8px;
}
#match-header h1 { font-size:.95rem; font-weight:800; color:var(--correct); }
#match-stats { display:flex; align-items:center; gap:12px; font-size:.82rem; }
#match-streak-display { color:#fb923c; font-weight:800; }
#match-lives { color:var(--incorrect); font-weight:700; letter-spacing:2px; font-size:.9rem; }

/* Timer bar */
#match-timer-wrap { height:6px; background:rgba(255,255,255,.08); flex-shrink:0; }
#match-timer-bar { height:100%; background:linear-gradient(90deg,#ef4444,#f59e0b); transform-origin:left; transition:none; }

/* Match toolbar */
#match-toolbar {
  display:flex; align-items:center; justify-content:space-between;
  padding:6px 12px; flex-shrink:0;
  background:rgba(255,255,255,.03); border-bottom:1px solid rgba(255,255,255,.05);
  gap:8px;
}
#match-round-info { display:flex; flex-direction:column; gap:1px; }
#match-round-text { font-size:.74rem; color:var(--muted); }
#match-pairs-left { font-size:.74rem; color:var(--accent); font-weight:700; }
#match-toggles { display:flex; gap:6px; align-items:center; }
.mtoggle {
  border:1px solid rgba(255,255,255,.13); background:rgba(255,255,255,.05);
  color:var(--muted); border-radius:50px; font-size:.72rem; font-weight:700;
  padding:5px 12px; cursor:pointer; min-height:32px; transition:all .2s;
  -webkit-tap-highlight-color:transparent;
}
.mtoggle.active { background:rgba(232,132,90,.2); color:var(--accent); border-color:var(--accent); }
#toggle-compound.active { background:rgba(251,146,60,.15); color:#fb923c; border-color:#fb923c; }
.match-col-label { font-size:.68rem; font-weight:800; letter-spacing:.08em; text-transform:uppercase; color:var(--muted); text-align:center; padding-bottom:5px; }
/* Left item: kanji big + reading small */
.match-item .item-kanji { font-size:clamp(.95rem,4.5vw,1.3rem); font-weight:900; color:var(--text); line-height:1.2; }
.match-item .item-reading { font-size:clamp(.6rem,2.4vw,.72rem); color:#f5a87a; margin-top:2px; }
.match-item .item-meaning-vi { font-size:clamp(.65rem,2.6vw,.8rem); color:#cbd5e1; line-height:1.3; }
.match-item .item-meaning-ja { font-size:clamp(.62rem,2.4vw,.76rem); color:#93c5fd; line-height:1.3; }

/* Match body */
#match-body {
  flex:1; display:flex; gap:10px; padding:10px 12px;
  overflow:hidden;
}
.match-col {
  flex:1; display:flex; flex-direction:column; gap:8px; overflow:hidden;
}
.match-col-label {
  font-size:.65rem; font-weight:800; letter-spacing:.1em; text-transform:uppercase;
  color:var(--muted); text-align:center; padding-bottom:4px;
}
.match-item {
  border-radius:14px; padding:12px 10px; text-align:center; cursor:pointer;
  border:2px solid rgba(255,255,255,.08); background:rgba(255,255,255,.05);
  transition:all .2s; font-weight:700; line-height:1.3; flex:1;
  display:flex; align-items:center; justify-content:center;
  min-height:52px; -webkit-tap-highlight-color:transparent;
  touch-action:manipulation; position:relative; overflow:hidden;
}
.match-item.kanji-item { font-size:clamp(1rem,5vw,1.4rem); color:var(--text); }
.match-item.meaning-item { font-size:clamp(.68rem,2.8vw,.82rem); color:#cbd5e1; }
.match-item:active { transform:scale(.96); }
.match-item.selected {
  border-color:var(--accent); background:rgba(232,132,90,.15);
  box-shadow:0 0 0 2px rgba(232,132,90,.3);
}
.match-item.matched {
  border-color:var(--correct); background:rgba(16,185,129,.1);
  animation:matchPop .35s ease;
}
@keyframes matchPop {
  0%{transform:scale(1)} 40%{transform:scale(1.06)} 70%{transform:scale(.98)} 100%{transform:scale(1)}
}
.match-item.wrong {
  border-color:var(--incorrect); background:rgba(244,63,94,.15);
  animation:wrongShake .35s ease;
}
@keyframes wrongShake {
  0%{transform:translateX(0)} 20%{transform:translateX(-6px)} 40%{transform:translateX(6px)} 60%{transform:translateX(-4px)} 80%{transform:translateX(4px)} 100%{transform:translateX(0)}
}
.match-item.vanish {
  animation:vanishOut .3s ease forwards;
}
@keyframes vanishOut {
  0%{opacity:1;transform:scale(1)} 50%{opacity:0;transform:scale(1.1)} 100%{opacity:0;transform:scale(.8)}
}
.match-item.empty {
  background:rgba(255,255,255,.02); border-color:rgba(255,255,255,.04);
  pointer-events:none; cursor:default;
}

/* Match bottom */
#match-bottom {
  padding:10px 14px calc(10px + var(--sab)); flex-shrink:0;
  background:rgba(15,15,26,.9); border-top:1px solid rgba(255,255,255,.07);
  display:flex; align-items:center; justify-content:space-between; gap:10px;
}
#match-combo-text { font-size:.78rem; color:#fb923c; font-weight:700; min-width:80px; }
#btn-match-home { background:rgba(255,255,255,.07); color:var(--muted); border:1px solid rgba(255,255,255,.1); padding:10px 18px; font-size:.75rem; border-radius:50px; cursor:pointer; min-height:42px; }

/* Match result overlay */
#match-result {
  display:none; position:fixed; inset:0; z-index:200;
  background:rgba(0,0,0,.85); backdrop-filter:blur(10px); -webkit-backdrop-filter:blur(10px);
  flex-direction:column; align-items:center; justify-content:center;
  gap:16px; text-align:center; padding:32px;
}
#match-result.visible { display:flex; }
#match-result-emoji { font-size:4rem; }
#match-result-title { font-size:1.8rem; font-weight:900; }
#match-result-score { font-size:3rem; font-weight:900; background:linear-gradient(135deg,var(--correct),var(--accent2)); -webkit-background-clip:text; -webkit-text-fill-color:transparent; }
#match-result-detail { font-size:.92rem; color:var(--muted); line-height:1.7; }
.match-result-btns { display:flex; gap:12px; flex-wrap:wrap; justify-content:center; margin-top:4px; }
#btn-match-retry { background:linear-gradient(135deg,var(--correct),#059669); color:#fff; padding:14px 30px; border-radius:50px; font-size:.9rem; font-weight:700; cursor:pointer; border:none; min-height:50px; }
#btn-match-home2 { background:rgba(255,255,255,.08); color:var(--muted); border:1px solid rgba(255,255,255,.12); padding:14px 26px; border-radius:50px; font-size:.9rem; font-weight:700; cursor:pointer; min-height:50px; }

/* Floating +combo animation */
.combo-float {
  position:fixed; font-size:1.4rem; font-weight:900; color:#fb923c;
  pointer-events:none; z-index:300; animation:floatUp .8s ease forwards;
}
@keyframes floatUp {
  0%{opacity:1;transform:translateY(0) scale(1)} 100%{opacity:0;transform:translateY(-60px) scale(1.3)}
}
/* ══════════════════════
   BUBBLE MATCH SCREEN
══════════════════════ */
#bubble-screen { background:var(--bg); overflow:hidden; }

#bub-header {
  display:flex; align-items:center; gap:10px; flex-shrink:0;
  padding:calc(10px + var(--sat)) 14px 10px;
  background:rgba(15,15,26,.9); backdrop-filter:blur(10px); -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(255,255,255,.07);
}
#bub-title { font-size:.95rem; font-weight:800; color:var(--accent2); flex:1; }
#bub-xp-wrap { display:flex; align-items:center; gap:6px; }
#bub-level-badge {
  font-size:.68rem; font-weight:900; padding:3px 8px; border-radius:50px;
  background:linear-gradient(135deg,var(--accent),var(--accent2));
  color:#fff; white-space:nowrap;
}
#bub-xp-bar-wrap { width:60px; height:6px; background:rgba(255,255,255,.1); border-radius:3px; overflow:hidden; }
#bub-xp-bar { height:100%; width:0%; background:linear-gradient(90deg,var(--accent),var(--accent2)); transition:width .4s; border-radius:3px; }
#bub-xp-text { font-size:.65rem; color:var(--muted); white-space:nowrap; }

#bub-stats-bar {
  display:flex; justify-content:space-around; padding:7px 10px; flex-shrink:0;
  background:rgba(255,255,255,.03); border-bottom:1px solid rgba(255,255,255,.05);
}
.bub-stat { display:flex; flex-direction:column; align-items:center; gap:1px; }
.bub-stat-label { font-size:.58rem; color:var(--muted); letter-spacing:.04em; }
.bub-stat span:last-child { font-size:.85rem; font-weight:800; color:var(--text); }
.timer-stat span:last-child { color:#f59e0b; }

/* Arena: floating bubbles */
#bub-arena {
  flex:1; position:relative; overflow:hidden;
  background:radial-gradient(ellipse 80% 60% at 50% 40%, rgba(232,132,90,.06) 0%, transparent 70%);
}

.bub-kanji {
  position:absolute; border-radius:50%; cursor:pointer;
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  border:2px solid rgba(255,255,255,.15);
  background:radial-gradient(circle at 35% 35%, rgba(255,255,255,.15), transparent 60%),
             linear-gradient(145deg,#0d1428,#2d3561);
  box-shadow:0 4px 20px rgba(232,132,90,.3), inset 0 1px 0 rgba(255,255,255,.2);
  transition:transform .15s, box-shadow .15s;
  -webkit-tap-highlight-color:transparent; touch-action:manipulation;
  animation:bubbleFloat linear infinite;
  user-select:none;
}
.bub-kanji:active { transform:scale(.92) !important; }
.bub-kanji.selected {
  border-color:var(--accent2); box-shadow:0 0 0 3px rgba(245,200,66,.4), 0 4px 24px rgba(245,200,66,.4);
  animation:bubbleFloat linear infinite, selectedPulse 1s ease infinite;
}
.bub-kanji.correct-flash {
  border-color:var(--correct); background:radial-gradient(circle at 35% 35%,rgba(255,255,255,.2),transparent 60%), linear-gradient(145deg,#1a3a2a,#10b981);
  box-shadow:0 0 0 4px rgba(16,185,129,.5), 0 8px 32px rgba(16,185,129,.4);
  animation:correctPop .5s ease forwards !important;
}
.bub-kanji.wrong-flash {
  border-color:var(--incorrect);
  box-shadow:0 0 0 4px rgba(244,63,94,.5), 0 8px 32px rgba(244,63,94,.4);
  animation:wrongShakeBub .4s ease !important;
}
.bub-k-text { font-size:clamp(1.1rem,6vw,1.8rem); font-weight:900; color:#fff; line-height:1; text-shadow:0 2px 8px rgba(0,0,0,.5); }
.bub-k-read { font-size:clamp(.45rem,2vw,.62rem); color:#f5a87a; margin-top:2px; }
.bub-k-hanviet { font-size:clamp(.55rem,2.2vw,.72rem); color:rgba(255,255,255,0.78); font-weight:700; margin-top:1px; text-shadow:0 1px 4px rgba(0,0,0,0.5); }
.bub-k-stars { font-size:clamp(.45rem,1.8vw,.62rem); color:#fbbf24; margin-top:2px; letter-spacing:-0.5px; text-shadow:0 1px 3px rgba(0,0,0,0.4); }
.bub-partial-note { position:absolute; bottom:-12px; left:50%; transform:translateX(-50%); background:var(--correct); color:#fff; font-size:0.6rem; padding:1px 5px; border-radius:10px; white-space:nowrap; box-shadow:0 2px 6px rgba(0,0,0,0.3); z-index:10; animation:bubbleSpawn 0.25s ease forwards; }


@keyframes bubbleFloat {
  0%   { transform:translateY(0px) rotate(0deg); }
  25%  { transform:translateY(-10px) rotate(1deg); }
  50%  { transform:translateY(-4px) rotate(-1deg); }
  75%  { transform:translateY(-12px) rotate(.5deg); }
  100% { transform:translateY(0px) rotate(0deg); }
}
@keyframes selectedPulse {
  0%,100%{ box-shadow:0 0 0 3px rgba(245,200,66,.4),0 4px 24px rgba(245,200,66,.3); }
  50%    { box-shadow:0 0 0 6px rgba(245,200,66,.6),0 4px 32px rgba(245,200,66,.5); }
}
@keyframes correctPop {
  0%  { transform:scale(1); opacity:1; }
  40% { transform:scale(1.25); opacity:1; }
  100%{ transform:scale(0) rotate(20deg); opacity:0; }
}
@keyframes wrongShakeBub {
  0%,100%{ transform:translateX(0); }
  20%{ transform:translateX(-10px) rotate(-3deg); }
  40%{ transform:translateX(10px) rotate(3deg); }
  60%{ transform:translateX(-7px) rotate(-2deg); }
  80%{ transform:translateX(7px) rotate(2deg); }
}
@keyframes bubbleSpawn {
  from{ transform:scale(0) rotate(-15deg); opacity:0; }
  to  { transform:scale(1) rotate(0deg); opacity:1; }
}

/* Meaning choices */
#bub-meanings {
  flex-shrink:0; padding:10px 12px calc(10px + var(--sab));
  background:rgba(10,10,20,.95); backdrop-filter:blur(10px); -webkit-backdrop-filter:blur(10px);
  border-top:1px solid rgba(255,255,255,.07);
  display:grid; gap:8px;
}
.bub-meaning-btn {
  border-radius:14px; padding:11px 14px; text-align:center; cursor:pointer;
  border:1.5px solid rgba(255,255,255,.08); background:rgba(255,255,255,.05);
  font-size:clamp(.75rem,3vw,.9rem); font-weight:600; color:#e2e8f0;
  transition:all .15s; -webkit-tap-highlight-color:transparent;
  touch-action:manipulation; line-height:1.3;
  min-height:44px; display:flex; align-items:center; justify-content:center;
}
.bub-meaning-btn:active { transform:scale(.96); }
.bub-meaning-btn.selected-ans {
  border-color:var(--accent2); background:rgba(245,200,66,.12);
  color:var(--accent2); box-shadow:0 0 0 2px rgba(245,200,66,.3);
}
.bub-meaning-btn.correct-ans {
  border-color:var(--correct); background:rgba(16,185,129,.15);
  color:#6ee7b7; box-shadow:0 0 0 2px rgba(16,185,129,.4);
  animation:correctAns .4s ease;
}
.bub-meaning-btn.wrong-ans {
  border-color:var(--incorrect); background:rgba(244,63,94,.15);
  color:#fca5a5; animation:wrongShakeBub .35s ease;
}
@keyframes correctAns {
  0%{ transform:scale(1); } 40%{ transform:scale(1.04); } 100%{ transform:scale(1); }
}

/* XP float */
.xp-float {
  position:fixed; font-size:1rem; font-weight:900; pointer-events:none; z-index:500;
  animation:floatUp .9s ease forwards;
}
@keyframes floatUp {
  0%  { opacity:1; transform:translateY(0) scale(1); }
  100%{ opacity:0; transform:translateY(-70px) scale(1.2); }
}

/* Bubble overlay */
#bub-overlay {
  display:none; position:absolute; inset:0; z-index:50;
  background:rgba(0,0,0,.82); backdrop-filter:blur(10px); -webkit-backdrop-filter:blur(10px);
  align-items:center; justify-content:center;
}
#bub-overlay.visible { display:flex; }
#bub-overlay-inner {
  background:#0d1428; border-radius:28px; border:1px solid rgba(255,255,255,.1);
  padding:32px 26px; text-align:center; max-width:340px; width:90%;
  display:flex; flex-direction:column; gap:12px;
}
#bub-overlay-emoji { font-size:3.5rem; }
#bub-overlay-title { font-size:1.5rem; font-weight:900; }
#bub-overlay-detail { font-size:.88rem; color:var(--muted); line-height:1.7; }
#bub-overlay-btns { display:flex; gap:10px; justify-content:center; margin-top:4px; }
#bub-btn-next {
  background:linear-gradient(135deg,var(--accent2),#b87d10); color:#fff;
  padding:13px 28px; border-radius:50px; font-size:.9rem; font-weight:700;
  border:none; cursor:pointer; min-height:48px;
}
#bub-btn-home {
  background:rgba(255,255,255,.08); color:var(--muted);
  border:1px solid rgba(255,255,255,.12); padding:13px 22px;
  border-radius:50px; font-size:.88rem; font-weight:700; cursor:pointer; min-height:48px;
}

/* Bubble Game Question & Choices */
#bub-question-label {
  display:flex; justify-content:space-between; align-items:center;
  margin-bottom:6px; border-bottom:1px solid rgba(255,255,255,.08); padding-bottom:8px;
}
#bub-q-left { display:flex; align-items:baseline; gap:8px; }
.bub-q-kanji { font-size:1.8rem; font-weight:900; color:#fff; }
.bub-q-hanviet { font-size:0.95rem; font-weight:700; color:var(--muted); }
#bub-q-right { display:flex; flex-direction:column; align-items:flex-end; gap:3px; }
.bub-q-meaning { font-size:0.88rem; font-weight:600; color:#e2e8f0; }
.bub-reading-badge {
  font-size:0.65rem; font-weight:800; padding:2px 8px; border-radius:20px;
  border:1.5px solid transparent; text-transform:uppercase; letter-spacing:0.02em;
}
.bub-reading-badge.badge-on {
  background:rgba(245,200,66,0.14); color:var(--accent2); border-color:rgba(245,200,66,0.28);
}
.bub-reading-badge.badge-kun {
  background:rgba(232,132,90,0.14); color:var(--accent); border-color:rgba(232,132,90,0.28);
}
#bub-options-grid { display:grid; grid-template-columns:repeat(2, 1fr); gap:8px; }
.bub-opt-kana { font-size:1.15rem; font-weight:800; }

/* Daily goal widget & layout */
#bub-daily-wrap {
  display:flex; align-items:center; gap:8px; padding:8px 14px;
  background:rgba(255,255,255,.02); border-bottom:1px solid rgba(255,255,255,.05);
  font-size:0.75rem; color:var(--text); flex-shrink:0;
}
#bub-daily-streak { font-weight:800; color:#f97316; }
#bub-daily-bar-wrap { flex:1; height:6px; background:rgba(255,255,255,.1); border-radius:3px; overflow:hidden; }
#bub-daily-bar { height:100%; width:0%; background:linear-gradient(90deg, #f97316, #e11d48); transition:width .4s ease; }
#bub-daily-text { font-weight:700; color:var(--muted); }
.bub-daily-label { font-size:0.65rem; color:var(--muted); }
#bub-daily-wrap.goal-done { animation:goalCelebration 0.5s ease-in-out 3; }
@keyframes goalCelebration {
  0%, 100% { transform:scale(1); background:rgba(255,255,255,.02); }
  50% { transform:scale(1.03); background:rgba(34,197,94,.1); }
}
.bub-ov-stats { font-size:.9rem; color:var(--text); line-height:2; }
.bub-dp-wrap { margin:12px 0; text-align:left; }
.bub-dp-label { font-size:0.78rem; color:var(--text); margin-bottom:6px; }
.bub-dp-bar-wrap { height:8px; background:rgba(255,255,255,.1); border-radius:4px; overflow:hidden; }
.bub-dp-bar { height:100%; background:linear-gradient(90deg, #f97316, #e11d48); }

/* Review section on overlay */
.bub-review-title { font-size:0.88rem; font-weight:750; color:var(--muted); text-align:left; margin-top:12px; margin-bottom:6px; }
.bub-review-list { display:flex; flex-direction:column; gap:6px; max-height:160px; overflow-y:auto; padding-right:4px; margin-bottom:4px; }
.bub-review-item {
  display:flex; align-items:center; gap:8px; background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.08); padding:8px 12px; border-radius:12px;
  cursor:pointer; transition:background .15s;
}
.bub-review-item:hover { background:rgba(255,255,255,.08); }
.bub-rev-kanji { font-size:1.1rem; font-weight:800; color:#fff; }
.bub-rev-arrow { color:var(--muted); font-size:0.8rem; }
.bub-rev-reading { font-size:0.95rem; font-weight:700; color:var(--accent2); }
.bub-rev-badge { font-size:0.65rem; padding:1px 5px; border-radius:4px; font-weight:800; border:1px solid transparent; }
.bub-rev-badge.badge-on { background:rgba(245,200,66,0.15); color:var(--accent2); border-color:rgba(245,200,66,0.3); }
.bub-rev-badge.badge-kun { background:rgba(232,132,90,0.15); color:var(--accent); border-color:rgba(232,132,90,0.3); }
.bub-rev-meaning { font-size:0.8rem; color:var(--muted); margin-left:auto; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; max-width:110px; }


/* ══════════════════════════════════════
   KANJI DUNGEON — Game 3
   ══════════════════════════════════════ */

/* Screen layout — overflow:hidden để arena không tràn */
#bubble-screen { overflow:hidden; }

/* Header */
#dng-header {
  display:flex; align-items:center; gap:10px; flex-shrink:0;
  padding:calc(10px + env(safe-area-inset-top,0px)) 14px 10px;
  background:rgba(0,0,0,.6); backdrop-filter:blur(12px); -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(255,255,255,.07);
}
#dng-floor-num { flex:1; font-size:1rem; font-weight:900; color:#fff; }
.dng-sound-btn {
  background:none; border:none; cursor:pointer; font-size:1.1rem;
  padding:4px 6px; opacity:.75; transition:opacity .2s;
  flex-shrink:0;
}
.dng-sound-btn:hover { opacity:1; }
#dng-xp-wrap { display:flex; align-items:center; gap:6px; }
#dng-lv-badge {
  font-size:.68rem; font-weight:900; padding:3px 9px; border-radius:50px;
  background:linear-gradient(135deg,var(--accent),var(--accent2)); color:#fff;
}
#dng-xp-bar-wrap { width:56px; height:5px; background:rgba(255,255,255,.12); border-radius:3px; overflow:hidden; }
#dng-xp-bar { height:100%; width:0; background:linear-gradient(90deg,var(--accent),var(--accent2)); transition:width .4s; }

/* Daily bar */
#dng-top-bar {
  display:flex; align-items:center; gap:8px; padding:5px 14px;
  background:rgba(0,0,0,.4); flex-shrink:0; font-size:.72rem;
}
#dng-daily-text { color:var(--muted); white-space:nowrap; }
#dng-daily-bar-wrap { flex:1; height:5px; background:rgba(255,255,255,.1); border-radius:3px; overflow:hidden; }
#dng-daily-bar { height:100%; width:0; background:linear-gradient(90deg,#f97316,#e11d48); transition:width .5s; border-radius:3px; }

/* Arena */
#dng-arena {
  flex:1; display:flex; align-items:center; justify-content:space-around;
  padding:16px; position:relative; overflow:hidden; min-height:0;
  transition:background 0.6s ease;
}
#dng-arena::before {
  content:''; position:absolute; inset:0;
  background:radial-gradient(ellipse 60% 50% at 30% 50%, rgba(255,255,255,.04), transparent 70%);
  pointer-events:none;
}

/* Enemy side */
#dng-enemy-side { display:flex; flex-direction:column; align-items:center; flex:1; }
#dng-enemy-wrap { display:flex; flex-direction:column; align-items:center; gap:6px; position:relative; }
.dng-enemy-hp-wrap {
  width:80px; height:6px; background:rgba(255,255,255,.15); border-radius:3px; overflow:hidden;
}
.dng-enemy-hp-bar { height:100%; width:100%; background:linear-gradient(90deg,#22c55e,#4ade80); transition:width .3s; }
.dng-enemy-sprite-el {
  font-size:clamp(3.5rem,14vw,5.5rem); line-height:1;
  filter:drop-shadow(0 4px 16px currentColor);
  transition:transform .2s;
  animation:enemyIdle 3s ease-in-out infinite;
}
.dng-boss-sprite {
  font-size:clamp(5rem,18vw,7.5rem); line-height:1;
  filter:drop-shadow(0 4px 24px currentColor) drop-shadow(0 0 40px rgba(239,68,68,.5));
  animation:bossIdle 2s ease-in-out infinite;
}
@keyframes enemyIdle {
  0%,100%{ transform:translateY(0) rotate(-3deg); }
  50%    { transform:translateY(-8px) rotate(3deg); }
}
@keyframes bossIdle {
  0%,100%{ transform:translateY(0) scale(1); }
  50%    { transform:translateY(-10px) scale(1.05); }
}
#dng-enemy-kanji {
  font-size:clamp(2.2rem,10vw,3.5rem); font-weight:900; line-height:1;
  font-family:'Noto Sans JP',sans-serif;
}
.dng-enemy-meaning {
  font-size:.75rem; color:var(--muted); opacity:.7; max-width:180px;
  text-align:center; line-height:1.3; margin-top:2px;
  overflow:hidden; text-overflow:ellipsis; white-space:nowrap;
}
.dng-enemy-meta { display:flex; align-items:center; gap:8px; }
.dng-mastery-stars { font-size:.65rem; color:#fbbf24; letter-spacing:-1px; }
.dng-enemy-count   { font-size:.72rem; color:var(--muted); }

/* Enemy hit animation */
.hit-anim { animation:enemyHitAnim .35s ease !important; }
@keyframes enemyHitAnim {
  0%  { transform:translateX(0)   scale(1);    filter:brightness(1); }
  25% { transform:translateX(12px) scale(.92); filter:brightness(2); }
  75% { transform:translateX(-8px) scale(.95); }
  100%{ transform:translateX(0)   scale(1);    filter:brightness(1); }
}

/* Damage float */
.dng-dmg-float {
  position:absolute; top:10px; left:50%; transform:translateX(-50%);
  font-size:1.4rem; pointer-events:none; z-index:10;
  animation:dmgFloat .6s ease forwards;
}
@keyframes dmgFloat {
  0%  { opacity:1; transform:translateX(-50%) translateY(0) scale(1.2); }
  100%{ opacity:0; transform:translateX(-50%) translateY(-40px) scale(.8); }
}

/* Hero side */
#dng-hero-side { display:flex; flex-direction:column; align-items:center; gap:8px; flex:0 0 auto; }
#dng-hero-sprite {
  font-size:clamp(2.8rem,11vw,4.5rem); line-height:1;
  filter:drop-shadow(0 4px 12px rgba(232,132,90,.5));
  animation:heroIdle 4s ease-in-out infinite;
}
@keyframes heroIdle {
  0%,100%{ transform:translateY(0); }
  50%    { transform:translateY(-6px); }
}
#dng-hero-hp { font-size:clamp(1rem,4vw,1.4rem); letter-spacing:2px; }

/* Hero hit */
.hero-hit { animation:heroHitAnim .35s ease !important; }
@keyframes heroHitAnim {
  0%  { transform:translateX(0);    filter:brightness(1); }
  30% { transform:translateX(-14px); filter:brightness(3) saturate(0); }
  70% { transform:translateX(8px); }
  100%{ transform:translateX(0);    filter:brightness(1); }
}
.dmg-flash { animation:arenaFlash .3s ease !important; }
@keyframes arenaFlash {
  0%,100%{ box-shadow:inset 0 0 0 rgba(239,68,68,0); }
  50%    { box-shadow:inset 0 0 60px rgba(239,68,68,.35); }
}

/* Floor intro */
#dng-floor-intro {
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  gap:8px; width:100%;
  animation:introFade .4s ease;
}
@keyframes introFade { from{ opacity:0; transform:scale(.85); } to{ opacity:1; transform:scale(1); } }
.dfi-sprite { font-size:5rem; animation:bossIdle 2s ease-in-out infinite; }
.dfi-title  { font-size:1.6rem; font-weight:900; letter-spacing:.06em; }
.dfi-name   { font-size:.88rem; color:var(--muted); }

/* Reading options panel */
#dng-options {
  flex-shrink:0; padding:10px 12px calc(10px + var(--sab));
  background:rgba(8,8,16,.96); backdrop-filter:blur(12px); -webkit-backdrop-filter:blur(12px);
  border-top:1px solid rgba(255,255,255,.07);
}
.dng-card-hint {
  display:flex; align-items:center; gap:8px; margin-bottom:8px;
  padding-bottom:8px; border-bottom:1px solid rgba(255,255,255,.07);
}
.dng-hint-kanji   { font-size:1.6rem; font-weight:900; color:#fff; font-family:'Noto Sans JP',sans-serif; }
.dng-hint-sep     { color:var(--muted); }
.dng-hint-hanviet { font-size:.9rem; font-weight:700; color:var(--muted); flex:1; }
.dng-reading-badge {
  font-size:.65rem; font-weight:800; padding:2px 8px; border-radius:20px; border:1.5px solid transparent;
}
.dng-reading-badge.badge-on  { background:rgba(245,200,66,.14); color:var(--accent2); border-color:rgba(245,200,66,.28); }
.dng-reading-badge.badge-kun { background:rgba(232,132,90,.14); color:var(--accent);  border-color:rgba(232,132,90,.28); }

/* Timer progress bar */
.dng-timer-bar-wrap {
  height:4px; background:rgba(255,255,255,.08); border-radius:2px;
  overflow:hidden; margin-bottom:8px;
}
.dng-timer-bar {
  height:100%; width:100%; border-radius:2px;
  background:linear-gradient(90deg,var(--accent),var(--accent2));
  transition:width 1s linear;
}

/* Answer reveal after wrong/timeout */
#dng-answer-reveal {
  max-height:0; overflow:hidden; opacity:0;
  transition:max-height .3s ease, opacity .3s ease;
  text-align:center; margin-top:0;
}
#dng-answer-reveal.visible {
  max-height:80px; opacity:1; margin-top:8px;
}
.dng-reveal-row {
  display:flex; align-items:center; justify-content:center; gap:10px;
}
.dng-reveal-kanji { font-size:1.3rem; font-weight:900; color:#fff; }
.dng-reveal-reading {
  font-size:1.1rem; font-weight:800; color:#4ade80;
  background:rgba(74,222,128,.12); padding:3px 12px; border-radius:8px;
}
.dng-reveal-detail { font-size:.72rem; color:var(--muted); margin-top:4px; }

/* Boss hint in floor intro */
.dfi-boss-hint {
  font-size:.72rem; color:#ef4444; margin-top:6px;
  animation:introFade .4s ease;
}

#dng-opts-grid { display:grid; grid-template-columns:1fr 1fr; gap:8px; }
.dng-opt-btn {
  border-radius:14px; padding:13px 10px; text-align:center; cursor:pointer;
  border:1.5px solid rgba(255,255,255,.09); background:rgba(255,255,255,.05);
  font-size:clamp(.95rem,4vw,1.2rem); font-weight:800; color:#e2e8f0;
  font-family:'Noto Sans JP',sans-serif; letter-spacing:.03em;
  transition:all .15s; -webkit-tap-highlight-color:transparent;
  touch-action:manipulation; min-height:52px;
  animation:dngOptIn .25s ease backwards;
}
@keyframes dngOptIn {
  from { transform:translateY(12px) scale(.94); opacity:0; }
  to   { transform:translateY(0) scale(1); opacity:1; }
}
.dng-opt-btn:active { transform:scale(.95); }
.dng-opt-btn:hover  { background:rgba(255,255,255,.1); border-color:rgba(255,255,255,.2); }
.dng-opt-correct {
  border-color:var(--correct); background:rgba(34,197,94,.18);
  color:#6ee7b7; animation:optCorrect .35s ease;
}
.dng-opt-wrong {
  border-color:var(--incorrect); background:rgba(239,68,68,.15);
  color:#fca5a5; animation:optWrong .35s ease;
}
@keyframes optCorrect { 0%{transform:scale(1)} 40%{transform:scale(1.05)} 100%{transform:scale(1)} }
@keyframes optWrong   { 0%{transform:translateX(0)} 25%{transform:translateX(-8px)} 75%{transform:translateX(8px)} 100%{transform:translateX(0)} }

/* Compound words popup */
#dng-compound-popup {
  animation: cmpIn .3s cubic-bezier(.34,1.56,.64,1);
}
@keyframes cmpIn {
  from { opacity:0; transform:translateY(10px) scale(.96); }
  to   { opacity:1; transform:translateY(0) scale(1); }
}
.cmp-header {
  display:flex; align-items:center; gap:10px;
  margin-bottom:10px; padding-bottom:8px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.cmp-kanji {
  font-size:1.8rem; font-weight:900; color:#fff;
  font-family:'Noto Sans JP',sans-serif;
}
.cmp-label {
  font-size:.75rem; font-weight:700; color:var(--accent);
  letter-spacing:.03em;
}
.cmp-list { display:flex; flex-direction:column; gap:6px; }
.cmp-item {
  display:flex; align-items:center; gap:8px;
  background:rgba(255,255,255,.04); border-radius:10px;
  padding:8px 12px; border:1px solid rgba(255,255,255,.07);
  animation: cmpIn .25s ease backwards;
}
.cmp-item:nth-child(1) { animation-delay:.05s; }
.cmp-item:nth-child(2) { animation-delay:.12s; }
.cmp-item:nth-child(3) { animation-delay:.19s; }
.cmp-word {
  font-size:1.1rem; font-weight:900; color:#fff; min-width:52px;
  font-family:'Noto Sans JP',sans-serif;
}
.cmp-reading {
  font-size:.78rem; color:var(--accent2); font-weight:700;
  background:rgba(245,200,66,.1); padding:2px 7px;
  border-radius:6px; font-family:'Noto Sans JP',sans-serif;
}
.cmp-meaning {
  font-size:.78rem; color:var(--muted); flex:1;
  overflow:hidden; text-overflow:ellipsis; white-space:nowrap;
}
.cmp-footer {
  font-size:.65rem; color:var(--muted); text-align:center;
  margin-top:8px; opacity:.5;
}

/* Stats footer */
#dng-stats-bar {
  display:flex; justify-content:space-around; padding:6px 10px; flex-shrink:0;
  background:rgba(0,0,0,.5); border-top:1px solid rgba(255,255,255,.05);
}
.dng-stat { display:flex; flex-direction:column; align-items:center; gap:1px; }
.dng-stat-lbl { font-size:.58rem; color:var(--muted); }
.dng-stat span:last-child { font-size:.9rem; font-weight:800; color:var(--text); }

/* Overlay */
#dng-overlay {
  display:none; position:absolute; inset:0; z-index:50;
  background:rgba(0,0,0,.82); backdrop-filter:blur(10px); -webkit-backdrop-filter:blur(10px);
  align-items:center; justify-content:center;
}
#dng-overlay.visible { display:flex; }
#dng-overlay-inner {
  background:#0d1428; border-radius:28px; border:1px solid rgba(255,255,255,.1);
  padding:28px 24px; text-align:center; max-width:340px; width:90%;
  display:flex; flex-direction:column; gap:10px;
  box-shadow:0 30px 80px rgba(0,0,0,.7);
}
#dng-ov-emoji { font-size:3.5rem; }
#dng-ov-title { font-size:1.5rem; font-weight:900; }
.dng-ov-row   { font-size:.95rem; color:var(--text); }
.dng-ov-daily { font-size:.82rem; color:var(--muted); margin-top:4px; }
.dng-ov-next  { font-size:.78rem; color:var(--muted); opacity:.6; margin-top:2px; }
#dng-ov-btns  { display:flex; gap:10px; justify-content:center; margin-top:6px; }
#dng-btn-next {
  background:linear-gradient(135deg,var(--accent),var(--accent2)); color:#fff;
  padding:13px 28px; border-radius:50px; font-size:.9rem; font-weight:700;
  border:none; cursor:pointer; min-height:48px;
}
#dng-btn-home {
  background:rgba(255,255,255,.08); color:var(--muted);
  border:1px solid rgba(255,255,255,.12); padding:13px 22px;
  border-radius:50px; font-size:.88rem; font-weight:700; cursor:pointer; min-height:48px;
}

/* ══════════════════════════════════════
   KANJI DUNGEON — 8-BIT / PIXEL-ART OVERRIDES
   ══════════════════════════════════════ */

/* 1. Animations with steps() for hard frame jumps */
@keyframes enemyIdle {
  0%   { transform: translateY(0)   scaleX(1); }
  25%  { transform: translateY(-6px) scaleX(1.02); }
  50%  { transform: translateY(-8px) scaleX(1); }
  75%  { transform: translateY(-4px) scaleX(.98); }
  100% { transform: translateY(0)   scaleX(1); }
}
.dng-enemy-sprite-el {
  animation: enemyIdle 0.8s steps(1) infinite;
}

/* 2. Scanline effect on arena */
#dng-arena::after {
  content:'';
  position:absolute; inset:0; pointer-events:none;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0px, transparent 3px,
    rgba(0,0,0,0.18) 3px, rgba(0,0,0,0.18) 4px
  );
  z-index:5;
}

/* 3. Enemy sprite: pixelated rendering + pixel shadow */
.dng-enemy-sprite-el, .dng-boss-sprite {
  image-rendering: pixelated;
  filter: drop-shadow(2px 2px 0 currentColor) drop-shadow(-1px -1px 0 rgba(0,0,0,0.8));
  font-size: clamp(3rem,12vw,5rem);
}

/* 4. Arena background: pixel grid */
#dng-arena {
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 16px 16px;
}

/* 5. Enemy kanji — pixel font style */
#dng-enemy-kanji {
  font-family: 'Noto Sans JP', monospace;
  text-shadow: 3px 3px 0 rgba(0,0,0,0.8), -1px -1px 0 rgba(255,255,255,0.1);
  letter-spacing: 2px;
}

/* 6. HP bar — discrete pixel blocks */
.dng-enemy-hp-wrap {
  width: 90px; height: 10px;
  background: repeating-linear-gradient(
    90deg,
    rgba(255,255,255,.08) 0px, rgba(255,255,255,.08) 8px,
    transparent 8px, transparent 10px
  );
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 0;
}
.dng-enemy-hp-bar {
  background: repeating-linear-gradient(
    90deg,
    #22c55e 0px, #22c55e 8px,
    #16a34a 8px, #16a34a 10px
  );
  height: 100%;
  transition: none;
}

/* 7. Option buttons — pixel art style */
.dng-opt-btn {
  border-radius: 0;
  border: 2px solid rgba(255,255,255,0.15);
  font-family: monospace;
  text-transform: lowercase;
  letter-spacing: 1px;
  transition: none;
  box-shadow: 3px 3px 0 rgba(0,0,0,0.5);
}
.dng-opt-btn:active {
  transform: translate(2px,2px);
  box-shadow: 1px 1px 0 rgba(0,0,0,0.5);
}
.dng-opt-correct {
  background: #16a34a !important;
  border-color: #4ade80 !important;
  box-shadow: 0 0 0 1px #4ade80;
}
.dng-opt-wrong {
  background: #991b1b !important;
  border-color: #ef4444 !important;
  box-shadow: 0 0 0 1px #ef4444;
}

/* 8. Hero sprite animation — 8-bit bounce */
@keyframes heroIdle {
  0%,49% { transform: translateY(0); }
  50%,100% { transform: translateY(-4px); }
}
#dng-hero-sprite {
  animation: heroIdle 0.6s steps(1) infinite;
  image-rendering: pixelated;
}

/* 9. Hit animation — pixel flash */
@keyframes enemyHitAnim {
  0%,100% { filter: brightness(1); transform: translateX(0); }
  25%     { filter: brightness(4) saturate(0); transform: translateX(8px); }
  50%     { filter: brightness(1); transform: translateX(-4px); }
  75%     { filter: brightness(2); transform: translateX(2px); }
}
.hit-anim { animation: enemyHitAnim 0.3s steps(1) !important; }

/* 10. Pixel font header style */
#dng-floor-num {
  font-family: 'Courier New', monospace;
  letter-spacing: 3px;
  text-transform: uppercase;
}
#dng-lv-badge {
  font-family: monospace;
  border-radius: 0;
  letter-spacing: 2px;
}

/* 11. XP float animation — pixel style */
.xp-float {
  font-family: monospace;
  font-weight: 900;
  text-shadow: 1px 1px 0 rgba(0,0,0,0.8);
}
@keyframes xpFloat {
  0%   { opacity:1; transform:translateY(0); }
  50%  { opacity:1; transform:translateY(-16px); }
  100% { opacity:0; transform:translateY(-32px); }
}
.xp-float { animation: xpFloat 0.9s steps(4) forwards; }

/* 12. Overlay — pixel art border */
#dng-overlay-inner {
  border: 3px solid var(--accent);
  border-radius: 0;
  box-shadow: 6px 6px 0 rgba(0,0,0,0.8), 0 0 0 1px var(--accent);
}
#dng-btn-next, #dng-btn-home {
  border-radius: 0;
  border: 2px solid currentColor;
  font-family: monospace;
  letter-spacing: 2px;
  box-shadow: 3px 3px 0 rgba(0,0,0,0.5);
  transition: none;
}

/* 13. Pixel art SVG sprites — sizing */
.dng-enemy-sprite-el svg, .dng-boss-sprite svg {
  width: clamp(56px, 14vw, 96px);
  height: clamp(56px, 14vw, 96px);
  image-rendering: pixelated;
  display: block;
}
#dng-hero-sprite svg {
  width: clamp(48px, 11vw, 80px);
  height: clamp(48px, 11vw, 80px);
  image-rendering: pixelated;
  display: block;
}
.dfi-sprite svg {
  width: 80px;
  height: 80px;
  image-rendering: pixelated;
  display: block;
  margin: 0 auto;
  animation: bossIdle 2s steps(1) infinite;
}
/* Remove old font-size on sprite containers now using SVG */
.dng-enemy-sprite-el, .dng-boss-sprite {
  font-size: 0 !important;
  display: flex; align-items: center; justify-content: center;
}
#dng-hero-sprite {
  font-size: 0 !important;
  display: flex; align-items: center; justify-content: center;
}
.dfi-sprite { font-size: 0; }

/* Nút Học Kanji trên home screen */
#study-link {
  position: absolute;
  top: calc(12px + var(--sat));
  right: 52px; /* bên trái nút sound */
  color: var(--muted);
  text-decoration: none;
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .03em;
  padding: 6px 11px;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,.1);
  background: rgba(255,255,255,.05);
  transition: color .2s, background .2s;
  z-index: 10;
}
#study-link:hover { color: #a5b4fc; background: rgba(99,102,241,.12); border-color: rgba(99,102,241,.3); }

/* Game card */
.game-card-4{background:linear-gradient(135deg,#2a2010,#4a3800);box-shadow:0 8px 32px rgba(245,158,11,.22)}
.game-card-4 .game-badge{background:rgba(245,158,11,.14);color:#f59e0b;border-color:rgba(245,158,11,.28)}
/* Speed Kanji screens */
#s-sph{display:none;position:fixed;inset:0;flex-direction:column;align-items:center;justify-content:center;overflow-y:auto;padding:calc(20px + env(safe-area-inset-top,0px)) 24px calc(20px + env(safe-area-inset-bottom,0px));background:var(--bg) radial-gradient(ellipse 70% 50% at 50% 30%,rgba(245,158,11,.08),transparent 70%)}
#s-sph.on{display:flex}
.sph-logo{font-size:min(26vw,100px);font-weight:900;line-height:1;background:linear-gradient(145deg,#fff,#f59e0b);-webkit-background-clip:text;-webkit-text-fill-color:transparent;filter:drop-shadow(0 0 28px rgba(245,158,11,.45));margin-bottom:6px}
.sph-ttl{font-size:1.35rem;font-weight:900;margin-bottom:4px}.sph-ttl span{color:#f59e0b}
.sph-sub{font-size:.76rem;color:var(--muted);margin-bottom:20px;text-align:center}
.sph-stats{display:flex;gap:18px;margin-bottom:18px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.07);border-radius:16px;padding:13px 20px}
.sph-si{display:flex;flex-direction:column;align-items:center;gap:2px}
.sph-v{font-size:1.2rem;font-weight:900}.sph-l{font-size:.65rem;color:var(--muted);letter-spacing:.04em}
.sv1{color:#fb923c}.sv2{color:var(--accent)}.sv3{color:var(--ok)}
#sp-xprow{display:flex;align-items:center;gap:10px;margin-bottom:18px;width:100%;max-width:320px}
#sp-lvlbdg{font-size:.75rem;font-weight:900;padding:5px 12px;border-radius:50px;background:linear-gradient(135deg,#f59e0b,#ef4444);color:#fff;white-space:nowrap}
#sp-xpbg{flex:1;height:8px;background:rgba(255,255,255,.08);border-radius:4px;overflow:hidden}
#sp-xpf2{height:100%;background:linear-gradient(90deg,#f59e0b,#ef4444);border-radius:4px;transition:width .5s}
#sp-xptxt{font-size:.62rem;color:var(--muted);white-space:nowrap}
#sp-lf{display:flex;gap:7px;flex-wrap:wrap;justify-content:center;margin-bottom:22px}
.sp-lb{border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.04);color:var(--muted);border-radius:50px;font-size:.78rem;font-weight:700;padding:7px 16px;cursor:pointer;min-height:38px;transition:all .2s}
.sp-lb.on{background:#f59e0b;color:#000;border-color:#f59e0b}
#sp-pbtn{width:100%;max-width:320px;padding:18px;border-radius:18px;border:none;cursor:pointer;font-size:1.05rem;font-weight:900;color:#fff;background:linear-gradient(135deg,#f59e0b,#ef4444);box-shadow:0 8px 28px rgba(245,158,11,.3)}
#sp-pbtn:active{transform:scale(.97)}
.sp-psub{font-size:.7rem;opacity:.75;font-weight:400;display:block;margin-top:2px}
/* Speed game screen */
#s-speed{display:none;position:fixed;inset:0;flex-direction:column;overflow:hidden}
#s-speed.on{display:flex}
#sp-ssw{height:4px;background:rgba(255,255,255,.07);flex-shrink:0}
#sp-ss{height:100%;background:linear-gradient(90deg,var(--accent),var(--accent2));transition:none}
#sp-hw{display:flex;align-items:center;justify-content:space-around;padding:8px 10px;flex-shrink:0;background:rgba(255,255,255,.03);border-bottom:1px solid rgba(255,255,255,.05)}
.sph2{display:flex;flex-direction:column;align-items:center;gap:1px}
.sph2-v{font-size:1rem;font-weight:900}.sph2-l{font-size:.58rem;color:var(--muted);letter-spacing:.04em}
#sp-sbw{height:5px;background:rgba(255,255,255,.07);flex-shrink:0;overflow:hidden}
#sp-sb{height:100%;background:linear-gradient(90deg,var(--ok),#f59e0b,var(--ng));transform-origin:left}
#sp-body{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:12px 16px;gap:14px;position:relative;overflow:hidden}
#sp-fov{position:absolute;inset:0;pointer-events:none;opacity:0;background:radial-gradient(ellipse 80% 60% at 50% 50%,rgba(245,158,11,.07),transparent 70%);transition:opacity .5s}
#sp-fov.on{opacity:1}
#sp-ft{position:absolute;top:10%;left:50%;transform:translateX(-50%);font-size:1.5rem;font-weight:900;letter-spacing:.1em;background:linear-gradient(135deg,#f59e0b,#ef4444);-webkit-background-clip:text;-webkit-text-fill-color:transparent;pointer-events:none;opacity:0;transition:opacity .3s;filter:drop-shadow(0 0 14px rgba(245,158,11,.65))}
#sp-ft.on{opacity:1}
#sp-cp{position:absolute;top:26%;left:50%;transform:translateX(-50%);font-size:1.7rem;font-weight:900;pointer-events:none;opacity:0;white-space:nowrap}
#sp-cp.pop{animation:spCP .4s ease}
@keyframes spCP{0%{opacity:0;transform:translateX(-50%) scale(.5)}50%{opacity:1;transform:translateX(-50%) scale(1.15)}100%{opacity:1;transform:translateX(-50%) scale(1)}}
#sp-stage{display:flex;flex-direction:column;align-items:center;gap:6px;animation:spIn .25s cubic-bezier(.34,1.56,.64,1)}
#sp-stage.ns{animation:spSH .35s ease}
@keyframes spIn{from{transform:scale(.7) translateY(20px);opacity:0}to{transform:scale(1) translateY(0);opacity:1}}
@keyframes spSH{0%,100%{transform:translateX(0)}20%{transform:translateX(-12px)}40%{transform:translateX(12px)}60%{transform:translateX(-8px)}80%{transform:translateX(8px)}}
#sp-k{font-size:clamp(4rem,22vw,7rem);font-weight:900;color:#fff;line-height:1;text-shadow:0 0 40px rgba(232,132,90,.55)}
#sp-k.fv{text-shadow:0 0 40px rgba(245,158,11,.8),0 0 80px rgba(239,68,68,.5);animation:spFV .6s ease infinite alternate}
@keyframes spFV{from{filter:brightness(1)}to{filter:brightness(1.3)}}
#sp-meta{display:flex;gap:12px}
#sp-hv{font-size:.85rem;color:var(--accent2);font-weight:700;letter-spacing:.1em}
#sp-rd{font-size:.78rem;color:#f5a87a}
#sp-opts{display:grid;gap:9px;width:100%;max-width:440px}
.sp-o{border-radius:16px;padding:13px 16px;text-align:center;cursor:pointer;border:1.5px solid rgba(255,255,255,.07);background:rgba(255,255,255,.04);font-size:clamp(.8rem,3.5vw,.93rem);font-weight:600;color:#e2e8f0;min-height:50px;display:flex;align-items:center;justify-content:center;line-height:1.3;-webkit-tap-highlight-color:transparent;touch-action:manipulation;animation:spOI .2s ease backwards}
.sp-o:nth-child(1){animation-delay:.05s}.sp-o:nth-child(2){animation-delay:.12s}.sp-o:nth-child(3){animation-delay:.19s}.sp-o:nth-child(4){animation-delay:.26s}
@keyframes spOI{from{transform:translateY(14px) scale(.95);opacity:0}to{transform:translateY(0) scale(1);opacity:1}}
.sp-o.ok{border-color:var(--ok);background:rgba(16,185,129,.12);color:#6ee7b7;animation:spOK .4s ease}
.sp-o.ng{border-color:var(--ng);background:rgba(244,63,94,.12);color:#fca5a5;animation:spNG .35s ease}
.sp-o.rv{border-color:rgba(16,185,129,.32);background:rgba(16,185,129,.07);color:#6ee7b7}
@keyframes spOK{0%{transform:scale(1)}40%{transform:scale(1.04)}100%{transform:scale(1)}}
@keyframes spNG{0%,100%{transform:translateX(0)}25%{transform:translateX(-6px)}75%{transform:translateX(6px)}}
.spf{position:fixed;font-size:1.1rem;font-weight:900;pointer-events:none;z-index:300;animation:spFup .8s ease forwards}
@keyframes spFup{0%{opacity:1;transform:translateY(0) scale(1)}100%{opacity:0;transform:translateY(-65px) scale(1.2)}}
/* Speed result */
#s-spr{display:none;position:fixed;inset:0;flex-direction:column;align-items:center;justify-content:center;gap:13px;padding:24px;overflow-y:auto;background:var(--bg) radial-gradient(ellipse 60% 40% at 50% 30%,rgba(16,185,129,.07),transparent 70%)}
#s-spr.on{display:flex}
.sr-e{font-size:4rem;animation:srPop .5s cubic-bezier(.34,1.56,.64,1)}
@keyframes srPop{from{transform:scale(0) rotate(-20deg)}to{transform:scale(1) rotate(0)}}
.sr-t{font-size:1.8rem;font-weight:900}.sr-g{font-size:3.5rem;font-weight:900;background:linear-gradient(135deg,var(--ok),var(--accent2));-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.sr-cards{display:grid;grid-template-columns:1fr 1fr;gap:10px;width:100%;max-width:360px}
.sr-c{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.07);border-radius:16px;padding:13px;text-align:center}
.sr-v{font-size:1.4rem;font-weight:900}.sr-l{font-size:.65rem;color:var(--muted);margin-top:2px}
.sv-stk .sr-v{color:#fb923c}.sv-cmb .sr-v{color:var(--accent2)}.sv-acc .sr-v{color:var(--ok)}.sv-xp .sr-v{color:var(--accent)}
#sr-srs{width:100%;max-width:360px;background:rgba(232,132,90,.05);border:1px solid rgba(232,132,90,.11);border-radius:16px;padding:13px 15px}
.sr-srs-t{font-size:.72rem;font-weight:800;color:var(--accent);letter-spacing:.06em;margin-bottom:8px;text-transform:uppercase}
.sr-row{display:flex;align-items:center;gap:8px;padding:4px 0;font-size:.78rem;color:var(--muted)}
.sr-rk{font-size:1rem;font-weight:900;color:var(--text);min-width:24px}
.sr-dot{width:6px;height:6px;border-radius:50%;flex-shrink:0;background:var(--ng)}
.sr-btns{display:flex;flex-direction:column;gap:10px;width:100%;max-width:340px}
.sr-r{background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;padding:15px;border-radius:50px;border:none;cursor:pointer;font-size:.9rem;font-weight:700;min-height:48px;letter-spacing:.04em}
.sr-h{background:rgba(255,255,255,.07);color:var(--muted);border:1px solid rgba(255,255,255,.1);padding:13px;border-radius:50px;cursor:pointer;font-size:.88rem;font-weight:700;min-height:46px}
canvas#sp-canvas{position:fixed;inset:0;pointer-events:none;z-index:0;opacity:.4}

/* ── Speed Kanji: Options ── */
.opt-btn{
  border-radius:16px;padding:14px 16px;text-align:center;cursor:pointer;
  border:1.5px solid rgba(255,255,255,.08);
  background:rgba(255,255,255,.05);
  font-size:clamp(.82rem,3.5vw,.96rem);font-weight:600;
  color:#e2e8f0;line-height:1.3;
  transition:border-color .15s,background .15s;
  min-height:52px;display:flex;align-items:center;justify-content:center;
  -webkit-tap-highlight-color:transparent;touch-action:manipulation;
  position:relative;overflow:hidden;
  animation:optIn .2s ease backwards;
}
.opt-btn::before{
  content:'';position:absolute;inset:0;opacity:0;
  background:radial-gradient(circle at 50% 50%,rgba(255,255,255,.12),transparent 70%);
  transition:opacity .2s;
}
.opt-btn:active::before{opacity:1}
.opt-btn.appear-1{animation-delay:.05s}
.opt-btn.appear-2{animation-delay:.12s}
.opt-btn.appear-3{animation-delay:.19s}
.opt-btn.appear-4{animation-delay:.26s}
@keyframes optIn{from{transform:translateY(16px) scale(.95);opacity:0}to{transform:translateY(0) scale(1);opacity:1}}
.opt-btn.correct{
  border-color:var(--correct);background:rgba(16,185,129,.15);color:#6ee7b7;
  animation:correctFlash .4s ease;
}
@keyframes correctFlash{0%{transform:scale(1)}30%{transform:scale(1.04)}100%{transform:scale(1)}}
.opt-btn.wrong{
  border-color:var(--incorrect);background:rgba(244,63,94,.15);color:#fca5a5;
  animation:wrongOpt .3s ease;
}
@keyframes wrongOpt{0%,100%{transform:translateX(0)}25%{transform:translateX(-6px)}75%{transform:translateX(6px)}}
.opt-btn.reveal{
  border-color:rgba(16,185,129,.4);background:rgba(16,185,129,.08);color:#6ee7b7;
}

/* ── Ripple ── */
.ripple{
  position:fixed;border-radius:50%;pointer-events:none;z-index:100;
  animation:rippleOut .5s ease forwards;
}
@keyframes rippleOut{0%{transform:scale(0);opacity:.5}100%{transform:scale(4);opacity:0}}

/* ── Score float ── */
.score-float{
  position:fixed;font-size:1.1rem;font-weight:900;pointer-events:none;z-index:21;
  animation:scoreFloat .8s ease forwards;
}
@keyframes scoreFloat{0%{opacity:1;transform:translateY(0) scale(1)}100%{opacity:0;transform:translateY(-60px) scale(1.2)}}


/* ── Speed Kanji: chế độ đáp án VN / JP ── */
#sp-mode-row{display:flex;flex-direction:column;align-items:center;gap:6px;margin-bottom:16px;width:100%;max-width:320px}
#sp-mode-row .sp-mode-lbl{font-size:.7rem;color:var(--muted);letter-spacing:.05em;text-transform:uppercase}
#sp-mode-row .sp-mode-btns{display:flex;gap:8px;width:100%}
.sp-mode-btn{
  flex:1;padding:9px 6px;border-radius:12px;
  border:1.5px solid rgba(255,255,255,.1);
  background:rgba(255,255,255,.04);
  color:var(--muted);font-size:.82rem;font-weight:700;cursor:pointer;
  transition:all .18s;-webkit-tap-highlight-color:transparent;
}
.sp-mode-btn.on{
  background:rgba(232,132,90,.18);color:var(--accent);
  border-color:var(--accent);
}
.sp-mode-btn[data-mode="jp"].on{
  background:rgba(245,200,66,.15);color:var(--accent2);
  border-color:var(--accent2);
}
#sp-jp-hint{
  font-size:.72rem;color:var(--muted);text-align:center;
  min-height:1.1em;margin-top:2px;padding:0 8px;
}

/* ── Speed Result back bar ── */
.sr-top-bar{width:100%;display:flex;align-items:center;padding:0 4px;margin-bottom:4px}

/* ══════════════════════════════
   FLOATING PANEL (góc phải dưới)
══════════════════════════════ */
#fp-toggle{
  position:fixed;right:16px;bottom:16px;z-index:1000;
  width:52px;height:52px;border-radius:50%;
  background:linear-gradient(135deg,var(--accent),var(--accent2));
  border:none;cursor:pointer;font-size:1.3rem;
  box-shadow:0 4px 16px rgba(0,0,0,.4);
  display:flex;align-items:center;justify-content:center;
  transition:transform .2s;-webkit-tap-highlight-color:transparent;
}
#fp-toggle:active{transform:scale(.92)}
#fp-toggle .fp-badge{
  position:absolute;top:-2px;right:-2px;
  background:#ef4444;color:#fff;
  font-size:.55rem;font-weight:900;
  border-radius:10px;padding:1px 5px;
  display:none;
}
#fp-toggle .fp-badge.on{display:block}

#fp-panel{
  position:fixed;right:12px;bottom:76px;z-index:999;
  width:min(340px,calc(100vw - 24px));
  background:rgba(10,10,22,.96);
  border:1px solid rgba(255,255,255,.12);
  border-radius:20px;
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  box-shadow:0 8px 40px rgba(0,0,0,.6);
  overflow:hidden;
  transform:translateY(20px) scale(.95);opacity:0;pointer-events:none;
  transition:all .25s cubic-bezier(.34,1.56,.64,1);
}
#fp-panel.open{transform:translateY(0) scale(1);opacity:1;pointer-events:auto}

.fp-tabs{display:flex;border-bottom:1px solid rgba(255,255,255,.08)}
.fp-tab{
  flex:1;padding:10px 4px;font-size:.72rem;font-weight:700;
  color:var(--muted);cursor:pointer;text-align:center;
  border:none;background:transparent;letter-spacing:.02em;
  transition:color .15s;-webkit-tap-highlight-color:transparent;
}
.fp-tab.on{color:var(--accent);border-bottom:2px solid var(--accent)}
.fp-body{max-height:340px;overflow-y:auto;padding:12px}
.fp-section{display:none}
.fp-section.on{display:block}

/* Tab: Mục tiêu */
.fp-goal-label{font-size:.68rem;color:var(--muted);margin-bottom:6px}
#fp-goal-input{
  width:100%;box-sizing:border-box;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);
  border-radius:10px;padding:8px 10px;color:#e2e8f0;font-size:.82rem;
  resize:none;min-height:70px;font-family:inherit;
}
#fp-goal-input:focus{outline:none;border-color:var(--accent)}
.fp-save-btn{
  margin-top:8px;padding:7px 16px;border-radius:8px;border:none;cursor:pointer;
  background:rgba(232,132,90,.2);color:var(--accent);font-size:.78rem;font-weight:700;
}
.fp-milestones{margin-top:12px}
.fp-ml-item{
  display:flex;align-items:center;gap:8px;
  padding:6px 0;border-bottom:1px solid rgba(255,255,255,.05);
  font-size:.78rem;
}
.fp-ml-item input[type=checkbox]{accent-color:var(--accent);width:16px;height:16px;cursor:pointer}
.fp-ml-del{margin-left:auto;background:none;border:none;color:var(--muted);cursor:pointer;font-size:.9rem;padding:0 4px}
.fp-add-row{display:flex;gap:6px;margin-top:8px}
.fp-ml-inp{
  flex:1;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.08);
  border-radius:8px;padding:6px 8px;color:#e2e8f0;font-size:.78rem;font-family:inherit;
}
.fp-ml-inp:focus{outline:none;border-color:var(--accent)}
.fp-add-btn{
  background:rgba(232,132,90,.2);color:var(--accent);
  border:none;border-radius:8px;padding:6px 12px;cursor:pointer;font-weight:700;font-size:.8rem;
}

/* Tab: Lịch sử */
.fp-hist-item{
  display:flex;align-items:center;gap:8px;
  padding:7px 0;border-bottom:1px solid rgba(255,255,255,.05);
  font-size:.78rem;
}
.fp-hist-game{font-size:.7rem;color:var(--muted);min-width:60px}
.fp-hist-score{font-weight:900;color:var(--accent);margin-left:auto}
.fp-hist-grade{
  font-weight:900;font-size:.8rem;min-width:22px;text-align:center;
  background:rgba(232,132,90,.15);border-radius:5px;padding:1px 5px;
}
.fp-hist-date{font-size:.65rem;color:var(--muted)}
.fp-hist-empty{color:var(--muted);font-size:.8rem;text-align:center;padding:20px 0}

/* Tab: Nhật ký */
.fp-diary-entry{
  display:flex;gap:8px;padding:8px 0;
  border-bottom:1px solid rgba(255,255,255,.05);
}
.fp-diary-dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--accent);flex-shrink:0;margin-top:4px;
}
.fp-diary-text{font-size:.78rem;color:#e2e8f0;line-height:1.5}
.fp-diary-time{font-size:.62rem;color:var(--muted);margin-top:2px}
.fp-diary-add{display:flex;gap:6px;margin-top:10px}
.fp-diary-inp{
  flex:1;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.08);
  border-radius:8px;padding:6px 8px;color:#e2e8f0;font-size:.78rem;font-family:inherit;
}
.fp-diary-inp:focus{outline:none;border-color:var(--accent)}

/* Tab: Từ vựng */
.fp-vocab-actions{display:flex;flex-direction:column;gap:8px}
.fp-vocab-btn{
  display:flex;align-items:center;gap:10px;
  padding:10px 12px;border-radius:12px;border:1px solid rgba(255,255,255,.1);
  background:rgba(255,255,255,.04);cursor:pointer;text-align:left;
  color:#e2e8f0;font-size:.8rem;font-weight:600;
  transition:background .15s;-webkit-tap-highlight-color:transparent;
}
.fp-vocab-btn:active{background:rgba(255,255,255,.1)}
.fp-vocab-icon{font-size:1.2rem;width:28px;text-align:center}
.fp-vocab-sub{font-size:.68rem;color:var(--muted);font-weight:400;margin-top:1px}
.fp-vocab-note{font-size:.68rem;color:var(--muted);margin-top:10px;line-height:1.5;padding:8px;background:rgba(255,255,255,.04);border-radius:8px}

/* Google Sheet modal */
#gs-modal{
  position:fixed;inset:0;z-index:2000;
  background:rgba(0,0,0,.7);backdrop-filter:blur(8px);
  display:none;align-items:center;justify-content:center;padding:16px;
}
#gs-modal.open{display:flex}
.gs-box{
  background:#0d0d1f;border:1px solid rgba(255,255,255,.15);
  border-radius:20px;padding:20px;width:100%;max-width:380px;
  max-height:80vh;overflow-y:auto;
}
.gs-title{font-size:1rem;font-weight:900;margin-bottom:4px}
.gs-sub{font-size:.72rem;color:var(--muted);margin-bottom:14px;line-height:1.5}
.gs-label{font-size:.72rem;color:var(--muted);margin-bottom:4px}
.gs-input{
  width:100%;box-sizing:border-box;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);
  border-radius:10px;padding:9px 12px;color:#e2e8f0;font-size:.82rem;font-family:inherit;
  margin-bottom:12px;
}
.gs-input:focus{outline:none;border-color:var(--accent)}
.gs-btns{display:flex;gap:8px;margin-top:4px;flex-wrap:wrap}
.gs-btn{
  flex:1;min-width:100px;padding:9px 12px;border-radius:10px;border:none;cursor:pointer;
  font-size:.8rem;font-weight:700;
}
.gs-btn.primary{background:rgba(232,132,90,.25);color:var(--accent)}
.gs-btn.danger{background:rgba(239,68,68,.15);color:#fca5a5}
.gs-btn.cancel{background:rgba(255,255,255,.08);color:var(--muted)}
.gs-status{margin-top:10px;font-size:.75rem;padding:6px 10px;border-radius:8px;display:none}
.gs-status.ok{background:rgba(16,185,129,.12);color:#6ee7b7;display:block}
.gs-status.err{background:rgba(239,68,68,.12);color:#fca5a5;display:block}


/* Hiragana/Katakana dưới nghĩa trong flashcard */
.shown-reading {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-top: 6px;
  flex-wrap: wrap;
}
.sr-on {
  font-size: .78rem;
  color: #f5a87a;
  background: rgba(245,168,122,.12);
  border-radius: 6px;
  padding: 2px 8px;
  letter-spacing: .03em;
}
.sr-kun {
  font-size: .78rem;
  color: #93c5fd;
  background: rgba(147,197,253,.12);
  border-radius: 6px;
  padding: 2px 8px;
  letter-spacing: .03em;
}

/* ══════════════════════════════════════
   DESKTOP RESPONSIVE — màn hình lớn
   ══════════════════════════════════════ */
@media (min-width: 768px) {
  /* Layout trung tâm rộng hơn */
  #game-area {
    max-width: 700px;
    margin: 0 auto;
  }

  /* Card lớn hơn đáng kể */
  #card-wrap {
    width: min(560px, 90vw);
    height: min(560px, 62vh);
  }

  /* Kanji to hơn */
  #kanji {
    font-size: clamp(7rem, 14vw, 11rem);
  }

  /* Hanviet & hard-reading */
  #han-viet {
    font-size: 1.25rem;
    letter-spacing: .15em;
  }
  #hard-reading {
    font-size: 1.05rem;
  }

  /* Nghĩa & readings */
  #shown-meaning {
    font-size: clamp(1.2rem, 2.4vw, 1.6rem);
  }
  #reading-on, #reading-kun {
    font-size: 1rem;
  }
  .sr-on, .sr-kun {
    font-size: .95rem;
    padding: 3px 12px;
  }

  /* Nút điều khiển */
  .btn {
    font-size: .95rem;
    padding: 16px 26px;
    min-height: 54px;
  }
  #btn-correct, #btn-incorrect { max-width: 150px; }
  #btn-flip { max-width: 130px; }

  /* Verdict & hint */
  #verdict-badge { font-size: .88rem; padding: 4px 18px; }
  #verdict-hint  { font-size: .8rem; }

  /* Back card */
  #back-kanji   { font-size: 5rem; }
  #back-content { font-size: 1.05rem; }

  /* Card back content padding */
  #card-back { gap: 14px; padding: 32px; }

  /* Progress / header */
  #progress-wrap { max-width: 700px; margin: 0 auto; }
}

@media (min-width: 1200px) {
  #card-wrap {
    width: 620px;
    height: 620px;
  }
  #kanji {
    font-size: 10rem;
  }
  #han-viet {
    font-size: 1.4rem;
  }
  #shown-meaning {
    font-size: 1.7rem;
  }
}

/* ══════════════════════════════════════════
   HOME PROGRESS BAR
══════════════════════════════════════════ */
#home-progress-wrap {
  width: 100%; max-width: 360px;
  display: flex; flex-direction: column; align-items: center;
  gap: 5px; margin-bottom: 10px;
}
#home-progress-bar-bg {
  width: 100%; height: 6px; border-radius: 99px;
  background: rgba(255,255,255,.1); overflow: hidden;
}
#home-progress-bar-fill {
  height: 100%; width: 0%; border-radius: 99px;
  background: linear-gradient(90deg, #c45528, #f5a87a);
  transition: width .6s cubic-bezier(.4,0,.2,1);
}
#home-progress-text {
  font-size: .72rem; color: var(--muted); letter-spacing: .03em;
}

/* ══════════════════════════════════════════
   ONBOARDING MODAL
══════════════════════════════════════════ */
#onboarding-overlay {
  position: fixed; inset: 0; z-index: 999;
  background: rgba(0,0,0,.82); backdrop-filter: blur(10px);
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
  animation: obFadeIn .35s ease;
}
@keyframes obFadeIn { from { opacity:0 } to { opacity:1 } }
.ob-fade-out { animation: obFadeOut .3s ease forwards !important; }
@keyframes obFadeOut { from { opacity:1 } to { opacity:0 } }

#onboarding-modal {
  background: #141414; border: 1px solid rgba(255,255,255,.1);
  border-radius: 20px; padding: 32px 28px 24px;
  max-width: 380px; width: 100%;
  text-align: center;
  box-shadow: 0 24px 60px rgba(0,0,0,.6);
  animation: obSlideUp .38s cubic-bezier(.34,1.56,.64,1);
}
@keyframes obSlideUp { from { transform:translateY(30px); opacity:0 } to { transform:translateY(0); opacity:1 } }

.ob-logo {
  font-size: 3.2rem; line-height: 1;
  filter: drop-shadow(0 0 20px rgba(245,168,122,.6));
  margin-bottom: 12px;
}
.ob-title {
  font-size: 1.35rem; font-weight: 900; color: #fff;
  line-height: 1.3; margin: 0 0 6px;
}
.ob-title span { color: var(--accent2); }
.ob-sub {
  font-size: .82rem; color: var(--muted);
  line-height: 1.5; margin: 0 0 22px;
}

.ob-steps {
  display: flex; flex-direction: column; gap: 12px;
  text-align: left; margin-bottom: 24px;
}
.ob-step {
  display: flex; align-items: flex-start; gap: 12px;
}
.ob-step-num {
  flex-shrink: 0;
  width: 26px; height: 26px; border-radius: 50%;
  background: linear-gradient(135deg, #c45528, #f5a87a);
  display: flex; align-items: center; justify-content: center;
  font-size: .78rem; font-weight: 900; color: #fff;
}
.ob-step-body {
  font-size: .83rem; line-height: 1.45; color: rgba(255,255,255,.8);
}
.ob-step-body strong { color: #fff; display: block; margin-bottom: 1px; }

.ob-btn-primary {
  width: 100%; padding: 14px;
  background: linear-gradient(135deg, #c45528, #f5a87a);
  border: none; border-radius: 12px;
  color: #fff; font-size: 1rem; font-weight: 900;
  cursor: pointer; transition: transform .15s, box-shadow .15s;
  box-shadow: 0 4px 20px rgba(200,80,40,.4);
  margin-bottom: 10px;
}
.ob-btn-primary:hover { transform: translateY(-1px); box-shadow: 0 6px 24px rgba(200,80,40,.5); }
.ob-btn-primary:active { transform: scale(.98); }

.ob-btn-skip {
  background: none; border: none;
  color: var(--muted); font-size: .8rem;
  cursor: pointer; padding: 6px;
  transition: color .2s;
}
.ob-btn-skip:hover { color: rgba(255,255,255,.6); }

/* ══════════════════════════════════════════
   FLASHCARD BACK — redesigned
══════════════════════════════════════════ */
.back-reading {
  display: flex; gap: 10px; justify-content: center; flex-wrap: wrap;
  margin-bottom: 8px;
}
.back-on {
  background: rgba(245,168,122,.18); color: #f5a87a;
  padding: 3px 10px; border-radius: 99px;
  font-size: .82rem; font-weight: 700;
}
.back-kun {
  background: rgba(147,197,253,.13); color: #93c5fd;
  padding: 3px 10px; border-radius: 99px;
  font-size: .82rem; font-weight: 700;
}
.back-correct-meaning {
  font-size: 1.3rem; font-weight: 900; color: var(--correct);
  margin-bottom: 12px;
}
.back-words {
  display: flex; flex-direction: column; gap: 6px;
  margin-top: 4px; width: 100%;
}
.back-word {
  display: flex; align-items: baseline; gap: 6px;
  background: rgba(255,255,255,.05); border-radius: 8px;
  padding: 5px 10px; font-size: .8rem;
}
.bw-kanji { font-weight: 700; color: #fff; font-size: .88rem; }
.bw-read  { color: #f5a87a; font-size: .75rem; }
.bw-mean  { color: var(--muted); margin-left: auto; font-size: .75rem; text-align: right; }

/* ══════════════════════════════════════════
   DESKTOP — màn hình ≥ 768px
   ══════════════════════════════════════════ */
@media (min-width: 768px) {
  /* HOME */
  .game-cards { max-width: 560px; }
  .game-card  { padding: 22px 28px; border-radius: 24px; gap: 20px; }
  .game-icon  { font-size: 2.8rem; }
  .game-name  { font-size: 1.15rem; }
  .game-desc  { font-size: .85rem; }
  .home-title { font-size: 2rem; }
  .home-sub   { font-size: .92rem; }

  /* MATCH */
  #match-body   { gap: 16px; padding: 14px 28px; }
  .match-item   { min-height: 72px; padding: 14px 12px; border-radius: 18px; }
  .match-item .item-kanji      { font-size: 1.5rem; }
  .match-item .item-reading    { font-size: .82rem; }
  .match-item .item-meaning-vi { font-size: .9rem; }
  #match-header h1 { font-size: 1.15rem; }

  /* DUNGEON */
  .dng-enemy-sprite-el svg,
  .dng-boss-sprite svg   { width: clamp(80px,14vw,130px); height: clamp(80px,14vw,130px); }
  #dng-hero-sprite svg   { width: clamp(64px,11vw,100px); height: clamp(64px,11vw,100px); }
  #dng-enemy-kanji       { font-size: clamp(3rem,10vw,5rem); }
  .dng-enemy-meaning     { font-size: .88rem; }
  .dng-hint-kanji        { font-size: 2rem; }
  .dng-hint-hanviet      { font-size: 1.05rem; }
  .dng-opt-btn           { font-size: 1.2rem; min-height: 62px; padding: 16px 12px; }
  #dng-options           { padding: 14px 28px calc(14px + var(--sab)); }
  #dng-opts-grid         { gap: 12px; }

  /* SPEED */
  #sp-k    { font-size: clamp(6rem,18vw,10rem); }
  #sp-hv   { font-size: 1.1rem; }
  #sp-rd   { font-size: .92rem; }
  .opt-btn { font-size: 1.05rem; min-height: 62px; }
  #sp-opts { max-width: 560px; gap: 12px; }
  #sp-stage { gap: 10px; }
  #sp-jp-hint { font-size: .85rem; }
}

@media (min-width: 1024px) {
  /* HOME */
  .game-cards { max-width: 640px; }
  .game-card  { padding: 26px 32px; }

  /* MATCH */
  .match-item   { min-height: 84px; }
  .match-item .item-kanji      { font-size: 1.7rem; }
  .match-item .item-meaning-vi { font-size: 1rem; }

  /* DUNGEON */
  .dng-opt-btn { font-size: 1.3rem; min-height: 68px; }
  #dng-enemy-kanji { font-size: clamp(3.5rem,8vw,6rem); }

  /* SPEED */
  #sp-k    { font-size: clamp(7rem,15vw,11rem); }
  .opt-btn { font-size: 1.12rem; min-height: 66px; }
  #sp-opts { max-width: 620px; }
}

/* ══════════════════════════════════════════
   MOBILE NHỎ — màn hình ≤ 380px
   ══════════════════════════════════════════ */
@media (max-width: 380px) {
  .game-cards { gap: 7px; }
  .game-card  { padding: 10px 12px; gap: 10px; }
  .game-icon  { font-size: 1.6rem; }
  .game-name  { font-size: .82rem; }
  .game-desc  { font-size: .62rem; }
  #card-wrap  { height: min(400px, 50vh); }

  /* Dungeon options */
  .dng-opt-btn { font-size: .88rem; padding: 10px 8px; min-height: 46px; }
  .dng-hint-kanji { font-size: 1.3rem; }
  #dng-opts-grid  { gap: 6px; }

  /* Speed */
  .opt-btn { font-size: .8rem; min-height: 46px; padding: 10px 12px; }
  #sp-k    { font-size: clamp(3.5rem,18vw,5rem); }

  /* Match */
  .match-item { min-height: 44px; padding: 8px 8px; border-radius: 10px; }
  .match-item .item-kanji { font-size: .95rem; }
  #match-body { gap: 6px; padding: 8px; }
}

/* ══════════════════════════════════════════
   DESKTOP LAYOUT — màn hình ≥ 768px
   Cho phép scroll và cải thiện bố cục
   ══════════════════════════════════════════ */
@media (min-width: 768px) {
  /* Mở scroll cho body và home screen trên desktop */
  body { overflow: hidden; }
  #home-screen {
    position: fixed; inset: 0;
    overflow-y: auto;
    justify-content: flex-start;
    padding: calc(32px + var(--sat)) 40px calc(40px + var(--sab));
    align-items: center;
  }

  /* Home header */
  .home-logo { font-size: 5rem; margin-bottom: 6px; }
  .home-title { font-size: 2.2rem; margin-bottom: 6px; }
  .home-sub   { font-size: .95rem; margin-bottom: 36px; }

  /* Level picker */
  #home-level-wrap { margin-bottom: 36px; gap: 10px; }
  .home-lvl-btn { padding: 10px 22px; font-size: .88rem; }

  /* Game cards — desktop wider */
  .game-cards { max-width: 640px; gap: 14px; }
  .game-card  { padding: 18px 20px; gap: 16px; }
  .game-icon  { font-size: 2.2rem; }
  .game-name  { font-size: .98rem; }
  .game-desc  { font-size: .72rem; }
  .game-icon  { font-size: 2.6rem; }
  .game-name  { font-size: 1.1rem; }
  .game-desc  { font-size: .82rem; }
  .game-badge { margin-top: 4px; }

  /* Progress bar */
  #home-progress-wrap { max-width: 680px; }

  /* Mode guide */
  #mode-guide {
    max-width: 680px;
    margin-top: 28px;
  }

  /* Home CTA */
  #home-cta-wrap { max-width: 680px; margin-top: 18px; }

  /* Done / result screens — căn giữa, max-width */
  #flash-done,
  #speed-done,
  #match-done {
    justify-content: center;
    align-items: center;
    overflow-y: auto;
  }
  .done-inner,
  .done-box {
    max-width: 520px;
    width: 100%;
    margin: 0 auto;
    padding: 40px 36px;
    border-radius: 28px;
    background: var(--card-bg);
    border: 1px solid rgba(255,255,255,.08);
  }

  /* Speed home (s-sph) */
  #s-sph {
    align-items: center;
    justify-content: center;
    overflow-y: auto;
  }
  #s-sph > * { max-width: 500px; width: 100%; }
}

/* ══════════════════════════════════════════
   GAME CARD 5 — Vẽ Kanji
   ══════════════════════════════════════════ */
.game-card-5 {
  background: linear-gradient(135deg,#0e1a2e,#1a3254);
  box-shadow: 0 8px 32px rgba(99,102,241,.22);
}
.game-card-5 .game-badge {
  background: rgba(99,102,241,.18);
  color: #a5b4fc;
  border-color: rgba(99,102,241,.3);
}

/* ══════════════════════════════════════════
   STROKE ORDER BUTTON (trong flashcard)
   ══════════════════════════════════════════ */
#stroke-btn {
  margin-top: 8px;
  padding: 5px 14px;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 20px;
  color: rgba(255,255,255,.55);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .04em;
  cursor: pointer;
  transition: background .18s, color .18s, border-color .18s;
}
#stroke-btn:hover { background: rgba(139,92,246,.18); color: #c4b5fd; border-color: rgba(139,92,246,.4); }

/* ══════════════════════════════════════════
   STROKE ORDER OVERLAY
   ══════════════════════════════════════════ */
#stroke-overlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,.78);
  z-index: 9998;
  align-items: center;
  justify-content: center;
  padding: 20px;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
#stroke-overlay.visible { display: flex; }

#stroke-modal {
  background: #13132a;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 20px;
  padding: 28px 24px;
  width: 100%;
  max-width: 340px;
  text-align: center;
  animation: fadeInUp .22s ease both;
}

#stroke-modal-header { margin-bottom: 16px; }
#stroke-kanji-title {
  font-family: 'Noto Serif JP', serif;
  font-size: 3rem;
  font-weight: 900;
  color: #fff;
  line-height: 1.1;
}
#stroke-modal-sub {
  font-size: .72rem;
  color: rgba(255,255,255,.35);
  letter-spacing: .06em;
  text-transform: uppercase;
  margin-top: 4px;
}

#stroke-svg-wrap {
  min-height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px 0;
}
#stroke-svg-wrap svg {
  width: 100%;
  max-width: 240px;
  height: auto;
  display: block;
  margin: 0 auto;
}

.stroke-loading {
  color: rgba(255,255,255,.4);
  font-size: .85rem;
  padding: 40px 0;
}
.stroke-not-found {
  color: rgba(255,255,255,.35);
  font-size: .82rem;
  padding: 32px 0;
}

.stroke-attribution {
  font-size: .62rem;
  color: rgba(255,255,255,.2);
  margin: 8px 0 14px;
  letter-spacing: .04em;
}

#stroke-modal-btns {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin-top: 4px;
}
.stroke-btn-action {
  padding: 9px 20px;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.07);
  color: #fff;
  font-size: .82rem;
  font-weight: 700;
  cursor: pointer;
  transition: background .18s;
}
.stroke-btn-action:hover { background: rgba(255,255,255,.14); }
.stroke-btn-close { background: rgba(239,68,68,.12); border-color: rgba(239,68,68,.25); color: #fca5a5; }
.stroke-btn-close:hover { background: rgba(239,68,68,.22); }

/* ══════════════════════════════════════════
   VẼ KANJI GAME SCREEN
   ══════════════════════════════════════════ */
/* display được điều khiển bởi .screen / .screen.active — không override ở đây */
#draw-screen { overflow: hidden; }

#draw-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: calc(12px + var(--sat)) 16px 10px;
  background: rgba(10,10,28,.9);
  border-bottom: 1px solid rgba(255,255,255,.07);
  flex-shrink: 0;
}
#draw-header h1 {
  flex: 1;
  font-size: 1rem;
  font-weight: 800;
  color: #a5b4fc;
  margin: 0;
}
#draw-score-text {
  font-size: .82rem;
  font-weight: 700;
  color: rgba(255,255,255,.45);
}

#draw-body {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 16px 16px 20px;
  gap: 14px;
}

/* Progress */
#draw-progress-text {
  font-size: .72rem;
  color: rgba(255,255,255,.3);
  font-weight: 600;
  letter-spacing: .04em;
  align-self: flex-start;
}

/* Hint area */
#draw-hint-area {
  width: 100%;
  max-width: 340px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
#draw-meaning {
  font-size: 1.5rem;
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
}
#draw-hanviet {
  font-size: .85rem;
  font-weight: 700;
  color: #f59e0b;
  letter-spacing: .06em;
  text-transform: uppercase;
}
#draw-reading {
  font-size: .78rem;
  color: rgba(255,255,255,.45);
}
#draw-kanji-reveal {
  font-family: 'Noto Serif JP', serif;
  font-size: 2.4rem;
  font-weight: 900;
  color: rgba(255,255,255,.0);
  height: 0;
  overflow: hidden;
  transition: all .3s ease;
}
#draw-kanji-reveal.revealed {
  color: rgba(255,200,100,.85);
  height: auto;
  margin-top: 4px;
}
#draw-show-kanji {
  margin-top: 4px;
  padding: 4px 14px;
  background: transparent;
  border: 1px dashed rgba(255,255,255,.2);
  border-radius: 16px;
  color: rgba(255,255,255,.35);
  font-size: .72rem;
  cursor: pointer;
  transition: all .18s;
}
#draw-show-kanji:hover { border-color: rgba(255,255,255,.4); color: rgba(255,255,255,.6); }

/* Canvas */
#draw-canvas-wrap {
  position: relative;
  width: 100%;
  max-width: 320px;
  flex-shrink: 0;
}
#draw-canvas {
  display: block;
  border-radius: 16px;
  border: 2px solid rgba(255,255,255,.12);
  background: #0a0a1c;
  cursor: crosshair;
  touch-action: none;
  width: 100%;
  max-width: 320px;
  height: auto;
  aspect-ratio: 1;
  opacity: 1;
  transition: opacity .15s;
}
#draw-canvas-hint {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,.1);
  font-size: .82rem;
  pointer-events: none;
  transition: opacity .3s;
}

/* Result */
#draw-result {
  min-height: 44px;
  font-size: .88rem;
  font-weight: 600;
  color: rgba(255,255,255,.8);
  text-align: center;
  line-height: 1.6;
}
.draw-correct { color: #4ade80; font-size: 1rem; }
.draw-wrong   { color: #f87171; font-size: 1rem; }
.draw-loading { color: rgba(255,255,255,.45); }
.draw-reveal-kanji {
  font-family: 'Noto Serif JP', serif;
  font-size: 1.6rem;
  font-weight: 900;
  color: #fcd34d;
  vertical-align: middle;
}

/* Action buttons */
#draw-actions {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
}
.draw-action-btn {
  padding: 10px 18px;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.06);
  color: rgba(255,255,255,.7);
  font-size: .82rem;
  font-weight: 700;
  cursor: pointer;
  transition: all .18s;
}
.draw-action-btn:hover { background: rgba(255,255,255,.12); color: #fff; }
.draw-action-btn:disabled { opacity: .35; cursor: default; }
.draw-action-primary {
  background: linear-gradient(135deg,#6366f1,#8b5cf6);
  border-color: transparent;
  color: #fff;
}
.draw-action-primary:hover { background: linear-gradient(135deg,#818cf8,#a78bfa); }

/* Done screen */
#draw-done {
  display: none;
  position: absolute; inset: 0;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 32px 20px;
  background: rgba(10,10,28,.96);
  text-align: center;
  gap: 8px;
}
#draw-done.visible { display: flex; }
#draw-done h2 { font-size: 1.4rem; font-weight: 800; color: #fff; margin: 0; }
.draw-done-emoji { font-size: 2.8rem; }

/* Desktop responsive */
@media (min-width: 768px) {
  #draw-body { max-width: 600px; margin: 0 auto; padding: 20px 24px; }
  #draw-canvas-wrap { max-width: 340px; }
  #draw-canvas { max-width: 340px; }
  #draw-hint-area { max-width: 400px; }
  #draw-meaning { font-size: 1.8rem; }
}

/* animCJK SVG stroke animation override — đảm bảo màu sắc hiện đúng trên dark bg */
#stroke-svg-wrap svg path {
  stroke: #c4b5fd;
}
#stroke-svg-wrap svg circle,
#stroke-svg-wrap svg ellipse {
  fill: #6366f1;
}
