*{box-sizing:border-box}
:root{
  --bg:#f5f6f8;
  --panel:#fff;
  --line:#d9dde3;
  --text:#202124;
  --sub:#6b717a;
  --accent:#23262b;
  --green:#aeeecd;
  --yellow:#f5e7a5;
}
html{
  width:100%;
  overflow-x:hidden;
  -webkit-text-size-adjust:100%;
  text-size-adjust:100%;
}
body{
  margin:0;
  width:100%;
  min-height:100vh;
  min-height:100dvh;
  overflow-x:hidden;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP",sans-serif;
  -webkit-tap-highlight-color:transparent;
}
button,input{font:inherit}
button{cursor:pointer;touch-action:manipulation}
[hidden]{display:none!important}

.appHeader{
  min-height:calc(54px + env(safe-area-inset-top));
  padding:
    env(safe-area-inset-top)
    max(14px,env(safe-area-inset-right))
    0
    max(14px,env(safe-area-inset-left));
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  background:#fff;
  border-bottom:1px solid var(--line);
  position:sticky;
  top:0;
  z-index:30;
}
.brand{display:flex;align-items:baseline;gap:5px;min-width:0}
.brand b{font-size:19px;white-space:nowrap}
.version{font-size:11px;color:var(--sub)}
.headerInfo{font-size:12px;color:var(--sub);white-space:nowrap}

.view{
  width:min(100%,1100px);
  margin:0 auto;
}
.setupView{
  padding:
    18px
    max(12px,env(safe-area-inset-right))
    calc(28px + env(safe-area-inset-bottom))
    max(12px,env(safe-area-inset-left));
}
.startHero{padding:8px 4px 14px}
.eyebrow{
  display:inline-block;
  font-size:12px;
  font-weight:700;
  color:#4f5966;
  background:#e9ecf0;
  padding:4px 9px;
  border-radius:999px;
}
.startHero h1{font-size:30px;line-height:1.2;margin:10px 0 6px}
.startHero p{margin:0;color:var(--sub);font-size:14px}

.setupCard{
  background:#fff;
  border:1px solid var(--line);
  border-radius:16px;
  padding:16px;
  margin-bottom:12px;
  box-shadow:0 1px 2px rgba(0,0,0,.03);
}
.stepTitle{display:flex;align-items:flex-start;gap:11px;margin-bottom:14px}
.stepNo{
  flex:0 0 30px;
  width:30px;height:30px;
  border-radius:50%;
  display:grid;place-items:center;
  background:#25282d;color:#fff;font-weight:800;
}
.stepTitle h2{margin:1px 0 2px;font-size:19px}
.stepTitle p{margin:0;color:var(--sub);font-size:12px}

.taskChoice{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:9px;
}
.taskBtn{
  min-width:0;
  min-height:72px;
  border:1px solid #c9cdd3;
  background:#fff;
  border-radius:12px;
  padding:10px;
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  justify-content:center;
  gap:3px;
}
.taskBtn strong{font-size:16px}
.taskBtn small{font-size:11px;color:var(--sub);text-align:left}
.taskBtn.active{
  border:2px solid #25282d;
  background:#f1f2f4;
}

.difficultyGrid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:8px;
}
.difficultyBtn{
  min-width:0;
  min-height:88px;
  border:1px solid #c9cdd3;
  border-radius:12px;
  background:#fff;
  padding:8px 5px;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:2px;
}
.difficultyBtn.active{
  border:2px solid #25282d;
  background:#eef0f3;
  transform:translateY(-1px);
}
.levelNum{font-size:27px;font-weight:800;line-height:1}
.levelText{font-size:12px;font-weight:700;text-align:center}
.difficultyBtn small{font-size:10px;color:var(--sub);white-space:nowrap}
.provisionalNote{margin-top:9px;font-size:10px;color:#858a91}

.countPicker{
  display:grid;
  grid-template-columns:64px minmax(120px,1fr) 64px;
  gap:10px;
  align-items:center;
  width:min(100%,420px);
  margin:4px auto 12px;
}
.countAdjust{
  width:64px;height:58px;
  border:1px solid #bfc4cb;
  border-radius:12px;
  background:#fff;
  font-size:30px;
}
.countDisplay{
  min-height:72px;
  display:flex;
  align-items:baseline;
  justify-content:center;
  gap:6px;
  background:#f7f8fa;
  border:1px solid var(--line);
  border-radius:14px;
}
.countDisplay strong{font-size:38px;line-height:1}
.countDisplay span{font-size:18px;font-weight:700;color:#535963}
.countSlider{width:100%;accent-color:#25282d}
.quickCounts{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:7px;
  margin-top:12px;
}
.quickCount{
  min-height:38px;
  padding:6px 11px;
  border:1px solid #c6cad0;
  background:#fff;
  border-radius:999px;
  font-size:12px;
}
.quickCount.active{background:#25282d;color:#fff;border-color:#25282d}
.poolInfo{text-align:center;color:var(--sub);font-size:11px;margin-top:10px;line-height:1.4}

.startTrainingBtn{
  width:100%;
  min-height:62px;
  border:0;
  border-radius:14px;
  background:#25282d;
  color:#fff;
  font-size:20px;
  font-weight:800;
  margin-top:4px;
}
.secondaryLink{
  width:100%;
  min-height:46px;
  border:0;
  background:transparent;
  color:#4f5966;
  font-weight:700;
  text-decoration:underline;
  margin-top:8px;
}

/* 一覧 */
#listView{
  padding:
    12px
    max(12px,env(safe-area-inset-right))
    calc(22px + env(safe-area-inset-bottom))
    max(12px,env(safe-area-inset-left));
}
.listTopBar{margin-bottom:8px}
.plainBack{
  min-height:40px;border:0;background:transparent;color:#1769c2;font-weight:700;padding:4px 0;
}
.modeBar{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin-bottom:9px}
.modeBtn{
  min-height:48px;border:1px solid #b8bcc3;background:#fff;border-radius:11px;font-weight:700;
}
.modeBtn.active{background:#25282d;color:#fff;border-color:#25282d}
.modeBtn small{font-weight:400;opacity:.8}
.taskNote{
  background:#fff;border:1px solid var(--line);border-radius:10px;
  padding:9px 11px;color:#555b64;font-size:13px;margin-bottom:10px;
}
.familiarityPanel{
  background:#fff;border:1px solid var(--line);border-radius:13px;padding:11px;margin-bottom:10px;
}
.panelTitle{display:flex;flex-wrap:wrap;gap:7px;align-items:center;font-size:14px;font-weight:700;margin-bottom:9px}
.provisional{font-size:10px;font-weight:500;color:#777;background:#f0f1f3;padding:3px 7px;border-radius:999px}
.dimensionBar{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:7px;margin-bottom:9px}
.dimBtn{min-height:42px;border:1px solid #c9ccd2;background:#fff;border-radius:9px;font-weight:700}
.dimBtn.active{background:#25282d;color:#fff;border-color:#25282d}
.familiarityBar{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:7px}
.famBtn{
  min-height:56px;border:1px solid #c9ccd2;background:#fafafa;border-radius:10px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;padding:6px;
}
.famBtn span{font-size:12px;font-weight:700;text-align:center}
.famBtn small{font-size:10px;color:#777}
.famBtn.active{outline:3px solid rgba(36,38,42,.12);border-color:#383b40}
.panelFoot{display:flex;flex-wrap:wrap;gap:7px;align-items:center;margin-top:9px;color:#777;font-size:11px}
.panelFoot span{flex:1 1 280px}
.textBtn{border:0;background:transparent;text-decoration:underline;font-weight:700;min-height:36px}
.textBtn.on{background:#25282d;color:#fff;text-decoration:none;border-radius:8px}
.editNotice{background:#fff3cd;border:1px solid #efd77d;border-radius:9px;padding:9px 11px;font-size:12px;margin-bottom:10px}
.controls{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:7px;margin-bottom:11px}
.controls input{min-width:0;height:44px;font-size:16px;border:1px solid #b8bcc3;border-radius:10px;padding:9px 11px}
.controls button{min-width:70px;border:1px solid #b8bcc3;border-radius:10px;background:#fff}
#grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:9px}
.tile{
  position:relative;min-width:0;overflow:hidden;background:#fff;border:2px solid transparent;
  border-radius:11px;padding:6px;box-shadow:0 1px 2px rgba(0,0,0,.06);
  content-visibility:auto;contain-intrinsic-size:200px 235px;
}
body.editing .tile{border-color:#e0c25a;cursor:pointer}
.tile img{width:100%;aspect-ratio:1;object-fit:contain;display:block;border-radius:6px}
.label{text-align:center;font-weight:650;font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;padding:5px 2px 1px}
.meta{text-align:center;font-size:9px;color:#9a9ea5;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.famBadge{
  position:absolute;right:7px;top:7px;background:rgba(255,255,255,.94);border:1px solid #d4d6da;
  border-radius:999px;padding:3px 5px;font-size:9px;font-weight:700;
}
.famBadge.high{background:#eef7ef}.famBadge.mid{background:#f7f5e9}.famBadge.low{background:#f7efef}
.loadSentinel{grid-column:1/-1;height:1px}
.empty{grid-column:1/-1;background:#fff;border:1px solid var(--line);border-radius:12px;padding:26px;text-align:center;color:#777}

/* 訓練画面 */
.cardView{
  min-height:calc(100vh - 54px);
  min-height:calc(100dvh - 54px - env(safe-area-inset-top));
  padding:
    8px
    max(10px,env(safe-area-inset-right))
    calc(16px + env(safe-area-inset-bottom))
    max(10px,env(safe-area-inset-left));
}
.questionTop{
  width:min(100%,760px);margin:0 auto 8px;
  display:grid;grid-template-columns:100px 1fr 100px;align-items:center;min-height:48px;
}
.backBtn{justify-self:start;border:0;background:transparent;color:#1769c2;font-size:17px;font-weight:700;padding:5px}
.questionNo{text-align:center;font-size:25px;font-weight:750;color:#4b5159}
.sessionProgress{text-align:right;font-size:12px;color:#777;padding-right:4px}
.questionStage{width:min(100%,760px);margin:0 auto}
.questionImageWrap{
  background:#fff;border-radius:12px;overflow:hidden;display:flex;align-items:center;justify-content:center;min-height:250px;
}
#stimulusImage{display:block;width:100%;max-height:52dvh;object-fit:contain;background:#fff}
.questionActions{
  display:grid;grid-template-columns:1fr;gap:16px;width:min(100%,520px);margin:30px auto 0;
}
.questionActions button{
  min-height:82px;border-radius:10px;font-size:29px;font-weight:750;border:1px solid #65706e;
}
.answerBtn{background:var(--green);color:#164232}
.hintBtn{background:var(--yellow);color:#594a14}
.hintPanel{
  width:min(100%,520px);margin:28px auto 0;min-height:86px;
  display:flex;align-items:center;justify-content:center;
}
.hintText{font-size:38px;font-weight:800;color:#0867b7}
.hintUnavailable{
  width:min(100%,520px);margin:24px auto 0;padding:13px;border-radius:9px;background:#fff3cd;color:#6c5c20;text-align:center;font-size:13px;
}
.answerPanel{width:min(100%,560px);margin:22px auto 0;text-align:center}
.answerReading{color:#0877c9;font-size:28px;font-weight:700;min-height:36px}
.answerLabel{font-size:34px;font-weight:800;margin-top:3px;overflow-wrap:anywhere}
.judgement{margin-top:30px;display:grid;grid-template-columns:1fr 1fr;gap:22px}
.judgement button{
  min-height:92px;border-radius:10px;border:1px solid #8b6c71;background:#ef9dab;
  display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:23px;font-weight:750;
}
.judgement .mark{font-size:38px;line-height:1;margin-bottom:3px}
.correctBtn .mark{color:#d94a4a}.wrongBtn .mark{color:#0784c9}
.judgement button.pressed{transform:scale(.97);filter:brightness(.93)}

/* 結果 */
.resultView{
  padding:
    36px
    max(12px,env(safe-area-inset-right))
    calc(30px + env(safe-area-inset-bottom))
    max(12px,env(safe-area-inset-left));
}
.resultCard{
  width:min(100%,560px);margin:0 auto;background:#fff;border:1px solid var(--line);
  border-radius:18px;padding:28px;text-align:center;
}
.resultIcon{
  width:58px;height:58px;border-radius:50%;display:grid;place-items:center;
  margin:0 auto 10px;background:#dff5e7;color:#19713d;font-size:30px;font-weight:800;
}
.resultCard h1{font-size:27px;margin:8px 0 18px}
.scoreBlock{display:flex;align-items:baseline;justify-content:center;gap:7px}
.scoreBlock strong{font-size:52px;line-height:1}
.scoreBlock span{font-size:20px;color:#6b717a;font-weight:700}
.resultRate{margin-top:8px;color:#4e5560;font-weight:700}
.resultButtons{margin-top:26px}
.secondaryBtn{
  width:100%;min-height:50px;border:1px solid #bfc4ca;background:#fff;border-radius:12px;font-weight:700;margin-top:9px;
}

@media(max-width:950px){
  #grid{grid-template-columns:repeat(4,minmax(0,1fr))}
}
@media(max-width:720px){
  .difficultyGrid{grid-template-columns:repeat(2,minmax(0,1fr))}
  #grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .familiarityBar{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:520px){
  .setupView{padding-top:10px}
  .startHero h1{font-size:25px}
  .setupCard{padding:13px;border-radius:14px}
  .taskChoice{grid-template-columns:1fr}
  .difficultyBtn{min-height:76px}
  .countPicker{grid-template-columns:56px 1fr 56px}
  .countAdjust{width:56px;height:54px}
  .countDisplay{min-height:66px}
  .countDisplay strong{font-size:34px}
  #grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
  .questionTop{grid-template-columns:72px 1fr 72px}
  .questionNo{font-size:22px}
  .backBtn{font-size:15px}
  .questionImageWrap{min-height:205px}
  #stimulusImage{max-height:43dvh}
  .questionActions{margin-top:22px;gap:13px}
  .questionActions button{min-height:70px;font-size:25px}
  .hintPanel{margin-top:20px}.hintText{font-size:32px}
  .answerPanel{margin-top:17px}
  .answerReading{font-size:24px}
  .answerLabel{font-size:29px}
  .judgement{gap:12px;margin-top:22px}
  .judgement button{min-height:82px;font-size:20px}
  .judgement .mark{font-size:33px}
  .resultView{padding-top:22px}
}
@media(orientation:landscape) and (max-height:600px){
  .questionTop{min-height:36px;margin-bottom:3px}
  .questionNo{font-size:19px}
  .questionImageWrap{min-height:145px}
  #stimulusImage{max-height:40dvh}
  .questionActions{grid-template-columns:1fr 1fr;margin-top:9px;gap:9px}
  .questionActions button{min-height:52px;font-size:19px}
  .hintPanel{margin-top:8px;min-height:48px}
  .hintText{font-size:27px}
  .answerPanel{margin-top:7px}
  .answerReading{font-size:19px;min-height:24px}
  .answerLabel{font-size:23px}
  .judgement{margin-top:8px}
  .judgement button{min-height:56px;font-size:17px}
  .judgement .mark{font-size:25px}
}