:root{
  --bg:#f7f4fd; --card:#ffffff; --ink:#2b2537; --muted:#7b7290; --line:#ebe5f5;
  --accent:#7c6cf2; --accent-ink:#ffffff; --ok:#2eb872; --bad:#f25f5c; --mark:#fff1a8;
}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--ink)}
body{font:17px/1.45 ui-rounded,"SF Pro Rounded","Nunito","Segoe UI",system-ui,sans-serif;-webkit-tap-highlight-color:transparent}
main{max-width:560px;margin:0 auto;padding:max(14px,env(safe-area-inset-top)) 14px 32px}
[hidden]{display:none!important}
h1{font-size:34px;margin:14px 0 6px;letter-spacing:-.01em}
a{color:var(--accent)}
.screen{animation:fade .25s ease}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

#start,#end{text-align:center;padding-top:10px}
.hero{width:min(320px,80%);border-radius:28px;box-shadow:0 10px 30px #7c6cf22e;margin-top:8px}
.lead{font-size:19px;margin:6px 0}
.hint{color:var(--muted);margin:6px 0 22px}
.by{color:var(--muted);font-size:14px;margin-top:26px}
.notice{background:#fff;border-radius:14px;padding:12px;color:var(--muted)}

button{font:inherit;cursor:pointer;border:0}
.primary{background:var(--accent);color:var(--accent-ink);font-weight:800;font-size:19px;padding:15px 30px;border-radius:999px;
  box-shadow:0 6px 0 #5d4fd0,0 10px 24px #7c6cf244;transition:transform .08s, box-shadow .08s}
.primary small{font-weight:600;opacity:.8;font-size:15px}
.primary:active{transform:translateY(4px);box-shadow:0 2px 0 #5d4fd0,0 4px 12px #7c6cf233}
.primary:disabled{opacity:.5}

.bar{display:flex;align-items:center;gap:12px;margin:4px 2px 10px;color:var(--muted);font-weight:700}
.dots{display:flex;gap:5px;flex:1;justify-content:flex-end}
.dots i{width:10px;height:10px;border-radius:50%;background:var(--line)}
.dots i.ok{background:var(--ok)} .dots i.bad{background:var(--bad)} .dots i.now{background:var(--accent)}

.listen{display:flex;align-items:center;justify-content:center;gap:12px;margin:2px 0 12px}
.play{width:76px;height:76px;border-radius:50%;background:var(--accent);display:grid;place-items:center;
  box-shadow:0 6px 0 #5d4fd0,0 10px 22px #7c6cf244}
.play:active{transform:translateY(4px);box-shadow:0 2px 0 #5d4fd0}
.play svg{width:40px;height:40px;fill:#fff;stroke:#fff;stroke-width:2;stroke-linecap:round}
.play svg .w1,.play svg .w2{fill:none}
.play.playing .w1{animation:wave 1s infinite} .play.playing .w2{animation:wave 1s .2s infinite}
@keyframes wave{50%{opacity:.25}}
.listenLabel{color:var(--muted);font-weight:700;font-size:15px}
.preview{background:var(--mark);border-radius:12px;padding:8px 12px;font-size:15px;margin:0 0 10px}

.grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.opt{position:relative;padding:0;border-radius:20px;overflow:hidden;background:#fff;aspect-ratio:1;
  box-shadow:0 3px 0 var(--line),0 6px 18px #2b253714;transition:transform .12s,opacity .25s,filter .25s}
.opt img{width:100%;height:100%;display:block;object-fit:cover}
.opt:active{transform:scale(.97)}
.opt .tag{position:absolute;top:8px;left:8px;width:30px;height:30px;border-radius:50%;background:#2b253755;color:#fff;
  font-weight:800;display:grid;place-items:center;font-size:15px}
.opt.dim{opacity:.35;filter:grayscale(.6)}
.opt.right{box-shadow:0 0 0 5px var(--ok),0 8px 24px #2eb87255;transform:scale(1.02)}
.opt.wrong{box-shadow:0 0 0 5px var(--bad);animation:shake .4s}
.opt .badge{position:absolute;right:8px;top:8px;width:36px;height:36px;border-radius:50%;display:grid;place-items:center;
  color:#fff;font-weight:900;font-size:20px}
.opt.right .badge{background:var(--ok)} .opt.wrong .badge{background:var(--bad)}
@keyframes shake{20%,60%{transform:translateX(-6px)}40%,80%{transform:translateX(6px)}}

.reveal{background:var(--card);border-radius:22px;padding:16px 16px 18px;margin-top:14px;text-align:center;
  box-shadow:0 6px 20px #2b253712;animation:fade .25s ease}
.verdict{font-size:22px;font-weight:800;margin:0 0 6px}
.verdict.ok{color:var(--ok)} .verdict.bad{color:var(--bad)}
.sentence{font-size:19px;margin:4px 0 10px;text-align:left}
.sentence mark{background:var(--mark);border-radius:6px;padding:0 3px}
.sentence mark.key{background:#ffd3d2}
.tip{color:var(--muted);margin:0 0 14px;font-size:15px}

.scoreLabel{color:var(--muted);font-weight:700;margin:40px 0 0}
.score{font-size:84px;font-weight:900;margin:0;line-height:1.1;color:var(--accent)}
.score small{font-size:36px;color:var(--muted)}

/* ---- additions: controls, streak, end screen, feedback, review ---- */
.icon{background:transparent;font-size:20px;padding:4px 6px;border-radius:10px}
.listenSide{display:flex;flex-direction:column;align-items:flex-start;gap:6px}
.chip{background:#fff;border-radius:999px;padding:6px 12px;font-weight:700;font-size:14px;color:var(--ink);box-shadow:0 2px 0 var(--line)}
.chip:active{transform:translateY(1px)}
.chip.playing{background:var(--mark)}
.keys{color:var(--muted);font-size:13px}
kbd{font:600 12px ui-monospace,monospace;background:#fff;border:1px solid var(--line);border-bottom-width:2px;border-radius:6px;padding:1px 6px}
.streak{text-align:center;font-weight:800;color:#e07b00;margin:-4px 0 8px;animation:pop .4s ease}
@keyframes pop{0%{transform:scale(.6);opacity:0}60%{transform:scale(1.1)}100%{transform:none;opacity:1}}

#end{position:relative}
#confetti{position:fixed;inset:0;width:100vw;height:100vh;pointer-events:none;z-index:5}
.stars{font-size:44px;letter-spacing:6px;margin-top:20px;min-height:56px}
.stars span{display:inline-block;animation:pop .5s ease both}
.stars .off{filter:grayscale(1);opacity:.25}
.endTitle{font-size:28px;margin:4px 0 0}
.best{color:var(--muted);font-weight:700;margin:4px 0 0}
.endButtons{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin:18px 0 6px}
.secondary{background:#fff;color:var(--accent);font-weight:800;font-size:17px;padding:13px 22px;border-radius:999px;box-shadow:0 4px 0 var(--line)}
.secondary:disabled{opacity:.45}
.card{background:var(--card);border-radius:22px;padding:16px 18px;margin-top:18px;text-align:left;box-shadow:0 6px 20px #2b253712}
.card h3{margin:0 0 10px;font-size:19px}.card h3 small{color:var(--muted);font-weight:600;font-size:14px}
.thumbs{display:flex;gap:10px;margin-bottom:10px}
.thumb{font-size:28px;background:var(--bg);border-radius:16px;padding:8px 18px;border:2px solid transparent}
.thumb.on{border-color:var(--accent);background:#ece7fd}
textarea{width:100%;font:inherit;border:1px solid var(--line);border-radius:14px;padding:10px 12px;resize:vertical;margin-bottom:10px}
.note{color:var(--muted);font-size:13px;margin:8px 0 0}
.thanks{text-align:center}
.review ol{list-style:none;padding:0;margin:0}
.review li{display:flex;gap:12px;align-items:center;padding:10px 0;border-top:1px solid var(--line)}
.review li:first-child{border-top:0}
.review img{width:64px;height:64px;border-radius:12px;flex:none}
.review .rs{flex:1;font-size:15px}
.review .rs mark{background:var(--mark);border-radius:4px;padding:0 2px}
.review .mk{font-weight:900;width:22px;text-align:center}
.review .mk.ok{color:var(--ok)} .review .mk.bad{color:var(--bad)}
.review .rp{background:var(--bg);border-radius:50%;width:38px;height:38px;flex:none;font-size:16px}

/* ---- cozy motion ---- */
body::before,body::after{content:"";position:fixed;z-index:-1;border-radius:50%;filter:blur(40px);opacity:.55;pointer-events:none}
body::before{width:340px;height:340px;background:#e6defd;top:-80px;left:-90px;animation:float 18s ease-in-out infinite}
body::after{width:300px;height:300px;background:#ffe9c7;bottom:-90px;right:-70px;animation:float 22s ease-in-out infinite reverse}
@keyframes float{50%{transform:translate(40px,30px) scale(1.08)}}

.grid.in .opt{animation:cardIn .42s cubic-bezier(.2,1.4,.5,1) both}
@keyframes cardIn{from{opacity:0;transform:translateY(14px) scale(.9)}to{opacity:1;transform:none}}
@media (hover:hover){.opt:not(.right):not(.wrong):not(.dim):hover{transform:translateY(-3px);box-shadow:0 6px 0 var(--line),0 12px 26px #2b25371f}}
.opt.right{animation:glow 1.2s ease-out}
@keyframes glow{0%{box-shadow:0 0 0 0 #2eb87299}70%{box-shadow:0 0 0 12px #2eb87200,0 0 0 5px var(--ok)}100%{box-shadow:0 0 0 5px var(--ok),0 8px 24px #2eb87255}}
.opt .badge{animation:pop .35s cubic-bezier(.2,1.6,.5,1) both}

.reveal.in{animation:slideUp .38s cubic-bezier(.2,1.2,.5,1) both}
@keyframes slideUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
.reveal.in .verdict{animation:pop .45s .05s cubic-bezier(.2,1.6,.5,1) both}

.dots i{transition:background .3s,transform .3s}
.dots i.now{animation:breathe 1.6s ease-in-out infinite}
.dots i.ok,.dots i.bad{animation:pop .35s ease}
@keyframes breathe{50%{transform:scale(1.35)}}

.play:not(.playing){animation:breathe2 2.8s ease-in-out infinite}
@keyframes breathe2{50%{box-shadow:0 6px 0 #5d4fd0,0 10px 30px #7c6cf266}}
.hero{animation:bob 4s ease-in-out infinite}
@keyframes bob{50%{transform:translateY(-6px) rotate(-.6deg)}}
.score .tick,#score.tick{display:inline-block;animation:pop .2s ease}
.primary,.secondary,.chip,.thumb,.icon{transition:transform .1s ease}
.primary:hover,.secondary:hover{transform:translateY(-1px)}

@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
}

/* ---- mobile polish ---- */
button,.opt,a{touch-action:manipulation}
main{padding-bottom:max(32px,env(safe-area-inset-bottom))}
@media (hover:none){.keys{display:none}}
img{-webkit-user-select:none;user-select:none;-webkit-touch-callout:none}
@media (max-width:380px){.play{width:66px;height:66px}.grid{gap:8px}h1{font-size:30px}}