/* BUNPO — POP theme · neo-brutalism（SHADOシリーズ共通トーン） */
:root{
  --bg:#FFFDF5; --surface:#FFFFFF; --ink:#141414; --border:#141414;
  --muted:#6B6B6B;
  --a1:#FFE600; --a2:#FF4D8D; --a3:#19D3C5; --a4:#7B61FF;
  --on-a1:#141414; --on-a2:#141414; --on-a3:#141414; --on-a4:#FFFFFF;
  --shadow:#141414;
  --good:#2BD46A; --bad:#FF4D6A;
  --timer:#C6ECFB; --reveal:#2F7BF6;
  --soft:0 6px 20px rgba(20,20,20,.10);
  --r:18px; --bw:3px; --sh:5px;
}

*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent;}
html,body{height:100%;}
body{
  font-family:"Zen Maru Gothic",sans-serif;
  background:var(--bg); color:var(--ink);
  font-weight:700;
}
button{font-family:inherit;font-weight:700;cursor:pointer;color:var(--ink);}
.hidden{display:none!important;}

.app{
  min-height:100vh; min-height:100svh; max-width:430px; margin:0 auto;
  display:flex; flex-direction:column; position:relative;
  background:var(--bg);
}
.app::before{
  content:""; position:fixed; inset:0; z-index:0; pointer-events:none;
  background-image:radial-gradient(var(--border) 1.2px, transparent 1.2px);
  background-size:22px 22px; opacity:.06;
}

/* ============ TOP BAR ============ */
.topbar{
  position:relative; z-index:3; flex:0 0 auto;
  display:flex; align-items:center; gap:10px;
  padding:calc(14px + env(safe-area-inset-top)) 16px 12px;
}
.logo{
  font-family:"Mochiy Pop One",sans-serif; font-size:21px; letter-spacing:.5px;
  display:flex; align-items:center; gap:8px;
}
.logo .mark{
  width:34px;height:34px;border:var(--bw) solid var(--border);border-radius:10px;
  background:var(--a1); color:var(--on-a1);
  display:grid;place-items:center;font-size:18px;
  box-shadow:var(--sh) var(--sh) 0 var(--shadow);
}
.topbar-right{margin-left:auto;display:flex;align-items:center;gap:8px;}
.icon-btn{
  width:38px;height:38px;flex:0 0 auto;
  border:var(--bw) solid var(--border);border-radius:12px;
  background:var(--surface);box-shadow:3px 3px 0 var(--shadow);
  font-size:17px;display:grid;place-items:center;
  transition:transform .1s,box-shadow .1s;
}
.icon-btn:active{transform:translate(3px,3px);box-shadow:0 0 0 var(--shadow);}
.icon-btn.muted{background:var(--bg);opacity:.6;}

/* ============ SCREENS ============ */
.scroll{position:relative;z-index:2;flex:1 1 auto;}
.screen{position:relative;padding:4px 16px 200px;animation:pop .35s cubic-bezier(.2,1.2,.4,1);}
.app-version{position:absolute;top:4px;right:16px;font-size:11px;font-weight:700;color:var(--muted);}
@keyframes pop{from{opacity:0;transform:translateY(10px) scale(.98);}to{opacity:1;transform:none;}}

/* ============ スタート画面 ============ */
.hello{font-family:"Mochiy Pop One",sans-serif;font-size:26px;line-height:1.25;margin:6px 2px 4px;}
.hello small{display:block;font-family:"Zen Maru Gothic";font-weight:700;font-size:13px;color:var(--muted);margin-top:6px;}
.mascot-row{text-align:center;margin:4px 0 8px;}
.mascot{font-size:52px;display:inline-block;animation:mascot-bob 2.4s ease-in-out infinite;}
@keyframes mascot-bob{0%,100%{transform:translateY(0);}50%{transform:translateY(-6px);}}

/* 合言葉（4ステップの語呂合わせ） */
.chant-section{text-align:center;margin:2px 0 20px;}
.chant-label{
  font-family:"Mochiy Pop One",sans-serif;font-size:12px;color:var(--muted);
  letter-spacing:.06em;margin-bottom:10px;
}
.chant-banner{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;}
.chant-word{
  font-family:"Mochiy Pop One",sans-serif;font-size:14.5px;
  border:var(--bw) solid var(--border);border-radius:999px;
  padding:8px 14px;box-shadow:3px 3px 0 var(--shadow);
  background:var(--a1);color:var(--on-a1);
  opacity:0;transform:translateY(14px) scale(.7);
  animation:chant-pop .5s cubic-bezier(.2,1.4,.4,1) forwards;
  animation-delay:var(--d,0s);
}
.chant-word:nth-child(2){background:var(--a3);color:var(--on-a3);}
.chant-word:nth-child(3){background:var(--a4);color:var(--on-a4);}
.chant-word.chant-shout{background:var(--a2);color:var(--on-a2);font-size:16px;}
@keyframes chant-pop{to{opacity:1;transform:translateY(0) scale(1);}}

.start-steps{list-style:none;margin-bottom:22px;display:flex;flex-direction:column;gap:10px;}
.start-steps li{
  border:var(--bw) solid var(--border); border-radius:14px; background:var(--surface);
  box-shadow:4px 4px 0 var(--shadow);
  padding:11px 14px; font-size:15px;
  display:flex; align-items:center; gap:12px;
}
.start-steps li .num{
  font-family:"Mochiy Pop One",sans-serif; font-size:16px;
  width:32px;height:32px;flex:0 0 auto;border-radius:10px;
  background:var(--a1); color:var(--on-a1);
  display:grid;place-items:center;
}
.start-steps li i{font-style:normal;font-size:11.5px;color:var(--muted);margin-left:auto;text-align:right;}

/* CTA（SHADOと同型） */
.cta{
  width:100%;border:var(--bw) solid var(--border);border-radius:var(--r);
  background:var(--a2);color:var(--on-a2);box-shadow:var(--sh) var(--sh) 0 var(--shadow);
  padding:17px;font-family:"Mochiy Pop One",sans-serif;font-size:17px;
  transition:transform .1s,box-shadow .1s;
}
.cta:active{transform:translate(var(--sh),var(--sh));box-shadow:0 0 0 var(--shadow);}

/* ============ クイズ：stats-bar（正解数・コンボ） ============ */
.stats-bar{margin:2px 2px 14px;display:flex;flex-direction:column;gap:9px;}
.stats-top{display:flex;align-items:center;justify-content:space-between;gap:10px;}
.stats-counter{
  display:flex;align-items:baseline;gap:2px;
  font-family:"Mochiy Pop One",sans-serif;
}
.stats-counter-cur{font-size:24px;}
.stats-counter-sep{font-size:15px;opacity:.4;margin:0 2px;}
.stats-counter-total{font-size:15px;opacity:.55;}

.stats-pills{display:flex;gap:8px;}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  border:2px solid var(--border);border-radius:999px;
  padding:4px 12px;font-size:13px;font-weight:900;
  background:var(--surface);box-shadow:2px 2px 0 var(--shadow);
}
.pill-dot{width:9px;height:9px;border-radius:50%;flex:0 0 auto;}
.pill-correct .pill-dot{background:var(--good);}
.pill-wrong .pill-dot{background:var(--bad);}

.stats-bars{display:flex;}
.bar{flex:1;}
.bar-track{height:12px;border:2px solid var(--border);border-radius:8px;background:var(--surface);overflow:hidden;}
.bar-fill{height:100%;transition:width .3s;}
.bar-fill-progress{background:linear-gradient(90deg,var(--a1),var(--a2));width:0;}

.stats-bottom{display:flex;}
.combo{
  display:inline-flex;align-items:center;gap:7px;
  border:var(--bw) solid var(--border);border-radius:999px;
  padding:6px 14px 6px 10px;background:var(--surface);
  box-shadow:3px 3px 0 var(--shadow);
  transition:background .2s,box-shadow .2s;
}
.combo-flame{font-size:16px;}
.combo-num{font-family:"Mochiy Pop One",sans-serif;font-size:18px;}
.combo-label{font-size:10px;letter-spacing:.1em;opacity:.55;font-weight:900;}
.combo-best{font-size:10.5px;opacity:.6;font-weight:900;margin-left:2px;}
.combo.hot{
  background:linear-gradient(90deg,var(--a2),var(--a1));
  box-shadow:3px 3px 0 var(--shadow), 0 4px 14px rgba(255,77,141,.35);
  animation:comboPulse .6s ease;
}
.combo.hot .combo-label{opacity:.75;color:var(--ink);}
@keyframes comboPulse{0%{transform:scale(1);}40%{transform:scale(1.12);}100%{transform:scale(1);}}

/* コンボバースト（正解時に画面中央→コンボ表示へ飛んでいく演出） */
.combo-burst{
  position:fixed;left:50%;top:38%;z-index:30;
  transform:translate(-50%,-50%);
  pointer-events:none;text-align:center;
  font-family:"Mochiy Pop One",sans-serif;
  animation:comboBurstIn .32s cubic-bezier(.2,.9,.3,1.4);
}
.combo-burst.flying{animation:none;transition:transform .32s cubic-bezier(.5,.05,.3,1),opacity .32s ease .12s;}
.combo-burst-num{
  font-size:clamp(70px,22vw,120px);line-height:.88;
  color:#fff;-webkit-text-stroke:3px var(--border);
  text-shadow:0 4px 24px rgba(20,20,20,.18);
}
.combo-burst-label{
  font-family:"Mochiy Pop One",sans-serif;font-size:15px;
  color:var(--ink);background:#fff;border:2px solid var(--border);
  padding:4px 14px;border-radius:999px;margin-top:-2px;display:inline-block;
}
.combo-burst-start .combo-burst-num{color:var(--good);-webkit-text-stroke:0;}
.combo-burst-start .combo-burst-label{background:var(--good);color:#fff;border-color:var(--border);}
.combo-burst-warm .combo-burst-num{color:var(--a1);-webkit-text-stroke:2px var(--border);}
.combo-burst-warm .combo-burst-label{background:var(--a1);color:var(--on-a1);}
.combo-burst-hot .combo-burst-num{color:var(--a2);-webkit-text-stroke:2px var(--border);}
.combo-burst-hot .combo-burst-label{background:var(--a2);color:var(--on-a2);}
.combo-burst-mega .combo-burst-num{
  background:linear-gradient(180deg,var(--a1),var(--a2) 50%,var(--a4));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  -webkit-text-stroke:0;animation:megaPulse .4s ease infinite alternate;
}
.combo-burst-mega .combo-burst-label{background:linear-gradient(90deg,var(--a2),var(--a4));color:#fff;}
@keyframes comboBurstIn{
  0%{transform:translate(-50%,-50%) scale(.4);opacity:0;}
  60%{transform:translate(-50%,-50%) scale(1.15);opacity:1;}
  100%{transform:translate(-50%,-50%) scale(1);opacity:1;}
}
@keyframes megaPulse{from{filter:drop-shadow(0 0 0 rgba(255,77,141,.5));}to{filter:drop-shadow(0 0 16px rgba(255,77,141,.8));}}

.prompt-card{
  border:var(--bw) solid var(--border); border-radius:var(--r);
  background:var(--surface);
  box-shadow:var(--sh) var(--sh) 0 var(--shadow);
  padding:16px; margin-bottom:16px;
}
.prompt-type{
  display:inline-block; font-family:"Mochiy Pop One",sans-serif; font-size:11px;
  background:var(--a1); color:var(--on-a1); border:2px solid var(--border);
  border-radius:999px; padding:3px 12px; margin-bottom:10px;
}
.prompt-sentence{font-size:21px;font-weight:900;line-height:1.55;}
.prompt-sub{font-size:12.5px;color:var(--muted);margin-top:6px;}

/* ステップ */
.steps-container{display:flex;flex-direction:column;gap:10px;}
.step-block{
  position:relative; overflow:hidden;
  border:var(--bw) solid var(--border); border-radius:var(--r);
  background:var(--surface);
  box-shadow:4px 4px 0 var(--shadow);
  padding:10px 14px 12px;
  opacity:.38; filter:grayscale(.6);
  transition:opacity .2s, filter .2s, background .2s;
}
.step-block.active{opacity:1;filter:none;background:var(--surface);}
.step-block.done{opacity:1;filter:none;background:var(--bg);box-shadow:2px 2px 0 var(--shadow);}
.step-timer-fill{
  position:absolute; left:0; right:0; bottom:0; height:0%;
  background:var(--timer); z-index:0; pointer-events:none;
}
.step-block.done .step-timer-fill{display:none;}
.step-label{
  position:relative; z-index:1;
  display:flex;align-items:center;gap:9px;
  font-family:"Mochiy Pop One",sans-serif;font-size:13.5px;margin-bottom:8px;
}
.step-num{
  font-size:13px;width:26px;height:26px;flex:0 0 auto;border-radius:8px;
  background:var(--a1);color:var(--on-a1);border:2px solid var(--border);
  display:grid;place-items:center;
}
.step-block.done .step-num{background:var(--a3);color:var(--on-a3);}
.step-chant{
  font-family:"Zen Maru Gothic",sans-serif;font-weight:700;font-size:11px;
  background:var(--bg);color:var(--muted);
  border-radius:999px;padding:3px 9px;
  transition:background .2s,color .2s;
}
.step-block.active .step-chant{background:var(--a1);color:var(--on-a1);}
.step-block.done .step-chant{background:var(--bg);color:var(--muted);opacity:.6;}
.step-block.done .step-label::after{content:"✔";margin-left:auto;color:var(--good);font-size:15px;}

.chip-row{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:9px;}
.chip{
  border:var(--bw) solid var(--border); background:var(--surface); color:var(--ink);
  border-radius:999px; padding:9px 17px;
  font-size:15px; font-weight:900;
  box-shadow:3px 3px 0 var(--shadow);
  transition:transform .1s, box-shadow .1s, background .15s;
}
.step-block.active .chip:active{transform:translate(3px,3px);box-shadow:0 0 0 var(--shadow);}
.step-block:not(.active) .chip{pointer-events:none;}
.chip.correct{background:var(--a3);color:var(--on-a3);transform:translate(3px,3px);box-shadow:0 0 0 var(--shadow);}
.chip.wrong{background:var(--bad);color:#fff;animation:shake .3s;}
.chip.reveal{background:var(--reveal);color:#fff;}
.step-block.done .chip:not(.correct):not(.reveal):not(.wrong){opacity:.3;box-shadow:none;}

@keyframes shake{
  0%,100%{transform:translateX(0);}
  25%{transform:translateX(-5px);}
  75%{transform:translateX(5px);}
}

/* ヒント（SHADOのai-comment型） */
.hint-banner{
  position:relative; z-index:1;
  margin-top:12px;
  background:var(--a1); border:var(--bw) solid var(--border);
  border-radius:14px; padding:12px 14px;
  font-size:13px; font-weight:900; color:var(--ink); line-height:1.55;
  box-shadow:3px 3px 0 var(--shadow);
  display:flex; gap:8px; align-items:flex-start;
  animation:pop .25s cubic-bezier(.2,1.2,.4,1);
}
.hint-icon{font-size:16px;flex:0 0 auto;}

/* ============ 答え合わせパネル ============ */
.answer-panel{
  position:fixed; left:0; right:0; bottom:0; z-index:10;
  max-width:430px; margin:0 auto;
  background:var(--surface);
  border-top:var(--bw) solid var(--border);
  border-radius:22px 22px 0 0;
  box-shadow:0 -6px 24px rgba(20,20,20,.18);
  padding:18px 20px calc(22px + env(safe-area-inset-bottom));
  transform:translateY(110%);
  transition:transform .3s cubic-bezier(.2,1.1,.4,1);
}
.answer-panel.show{transform:translateY(0);}
.answer-head{font-family:"Mochiy Pop One",sans-serif;font-size:15px;color:var(--ink);margin-bottom:10px;}
.answer-formula{
  background:var(--a1); border:var(--bw) solid var(--border); border-radius:14px;
  box-shadow:3px 3px 0 var(--shadow);
  padding:11px 13px; font-size:14px; font-weight:900; margin-bottom:14px;
}
.answer-choices-label{font-family:"Mochiy Pop One",sans-serif;font-size:13px;margin-bottom:9px;}
.choice-chips{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:14px;}
.answer-sentence{font-size:21px;font-weight:900;margin-bottom:14px;line-height:1.6;}
.answer-sentence b{color:var(--a2);border-bottom:3px solid var(--a2);}
.btn-next{padding:14px;}
.btn-reveal{background:var(--a3);color:var(--on-a3);padding:14px;margin-bottom:14px;}

/* ============ 結果画面 ============ */
.result-inner{text-align:center;padding-top:16px;}
.trophy{font-size:76px;display:inline-block;animation:trophy-wiggle 4s linear infinite;}
@keyframes trophy-wiggle{50%{transform:rotate(8deg) scale(1.05);}}
.result-title{font-family:"Mochiy Pop One",sans-serif;font-size:27px;margin:8px 0 16px;}
.result-score{
  border:var(--bw) solid var(--border); border-radius:var(--r);
  background:var(--a4); color:var(--on-a4);
  box-shadow:var(--sh) var(--sh) 0 var(--shadow);
  padding:18px; margin-bottom:22px;
}
.rs-num{font-family:"Mochiy Pop One",sans-serif;font-size:38px;line-height:1;}
.rs-num small{font-size:19px;opacity:.85;margin-left:4px;}
.rs-lbl{font-size:13px;opacity:.92;margin-top:6px;}

.sec-label{
  font-family:"Mochiy Pop One",sans-serif;font-size:15px;margin:4px 2px 12px;
  display:flex;align-items:center;gap:8px;text-align:left;
}
.sec-label::after{content:"";height:var(--bw);background:var(--border);flex:1;border-radius:2px;}

.result-bars{
  text-align:left;margin-bottom:16px;
  border:var(--bw) solid var(--border);border-radius:var(--r);background:var(--surface);
  box-shadow:4px 4px 0 var(--shadow);padding:14px 16px;
}
.result-bar-row{display:flex;align-items:center;gap:9px;font-size:12px;}
.result-bar-row + .result-bar-row{margin-top:10px;padding-top:10px;border-top:2px dashed var(--border);}
.result-bar-label{width:112px;font-weight:900;flex-shrink:0;}
.result-bar-track{flex:1;height:12px;border:2px solid var(--border);border-radius:8px;background:var(--bg);overflow:hidden;}
.result-bar-fill{height:100%;background:var(--bad);}
.result-bar-count{width:26px;text-align:right;font-family:"Mochiy Pop One",sans-serif;font-size:14px;}

.result-advice{
  background:var(--a1); border:var(--bw) solid var(--border); border-radius:14px;
  box-shadow:3px 3px 0 var(--shadow);
  padding:13px 14px; font-size:13px; font-weight:900; line-height:1.6;
  margin-bottom:22px; text-align:left;
}

/* confetti（SHADO共通） */
.confetti{
  position:fixed;top:-14px;z-index:60;width:10px;height:14px;border-radius:3px;pointer-events:none;
  animation:confetti-fall 1.8s ease-in forwards;
}
@keyframes confetti-fall{
  0%{transform:translateY(0) rotate(0);opacity:1;}
  100%{transform:translateY(105vh) rotate(var(--rot,360deg));opacity:.8;}
}

/* ============ BGMディスク（右下・回転アイコン） ============ */
.bgm-disc-wrap{
  position:fixed;left:0;right:0;bottom:0;z-index:20;
  max-width:430px;margin:0 auto;pointer-events:none;
}
.bgm-disc{
  position:absolute;right:14px;bottom:calc(14px + env(safe-area-inset-bottom));
  pointer-events:auto;
  width:58px;height:58px;border-radius:50%;flex:0 0 auto;
  border:none;
  background:var(--surface);overflow:hidden;
  display:grid;place-items:center;
  animation:bgm-spin 3.5s linear infinite;
  animation-play-state:paused;
  transition:transform .1s;
}
.bgm-disc:active{transform:scale(.94);}
.bgm-disc.spinning{animation-play-state:running;}
.bgm-disc.muted{filter:grayscale(1) brightness(.85);}
.bgm-disc img{width:100%;height:100%;object-fit:cover;display:block;pointer-events:none;}
.bgm-disc-mute{
  position:absolute;inset:0;display:grid;place-items:center;
  background:rgba(20,20,20,.45);font-size:20px;
}
@keyframes bgm-spin{from{transform:rotate(0deg);}to{transform:rotate(360deg);}}

/* ============ SW UPDATE BAR ============ */
.sw-update-bar{
  position:fixed;top:0;left:0;right:0;z-index:9999;
  display:flex;align-items:center;justify-content:center;gap:12px;
  padding:10px 16px;background:#141414;color:var(--a1);
  font-size:13px;font-weight:700;box-shadow:0 2px 12px rgba(0,0,0,.3);
}
.sw-update-btn{
  border:2px solid var(--a1);background:transparent;color:var(--a1);
  font-family:inherit;font-size:12px;font-weight:800;padding:4px 14px;
  border-radius:999px;cursor:pointer;white-space:nowrap;
}
.sw-update-btn:active{background:var(--a1);color:#141414;}
.sw-update-close{opacity:.6;font-size:11px;padding:4px 8px;}