:root{
  --bg:#100D1B;
  --bg-2:#171226;
  --surface:#1C1731;
  --surface-2:#251E40;
  --line:rgba(210,200,255,.12);
  --line-strong:rgba(210,200,255,.22);
  --text:#F0ECFB;
  --muted:#9A92B8;
  --amber:#F5B841;
  --amber-deep:#E09B1A;
  --amber-soft:rgba(245,184,65,.14);
  --rose:#E4577B;
  --green:#5BD6A2;
  --radius:14px;
  --disp:'Unbounded', system-ui, sans-serif;
  --body:'Outfit', system-ui, sans-serif;
  --mono:ui-monospace,'SF Mono',Menlo,Consolas,monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{color-scheme:dark}
body{
  min-height:100dvh;
  background:
    radial-gradient(1000px 560px at 50% -12%, rgba(245,184,65,.08), transparent 62%),
    radial-gradient(800px 560px at 88% 112%, rgba(228,87,123,.07), transparent 60%),
    radial-gradient(700px 500px at -8% 70%, rgba(91,120,235,.05), transparent 60%),
    var(--bg);
  color:var(--text);
  font-family:var(--body);
  font-size:16px;line-height:1.55;
  display:flex;flex-direction:column;align-items:center;
}
button{font-family:var(--body);cursor:pointer;color:inherit}
button:focus-visible,input:focus-visible{outline:2px solid var(--amber);outline-offset:2px}
::selection{background:var(--amber);color:#1a1406}

/* ---------- top bar ---------- */
.topbar{
  width:100%;max-width:720px;
  display:flex;align-items:center;justify-content:space-between;
  padding:22px 20px 8px;
}
.wordmark{
  font-family:var(--disp);font-weight:700;font-size:20px;letter-spacing:.5px;
  background:none;border:none;padding:0;
}
.wordmark em{font-style:normal;color:var(--amber)}
.topstats{display:flex;gap:8px;align-items:center;flex-wrap:wrap;justify-content:flex-end}
.pill{
  border:1px solid var(--line);border-radius:999px;
  padding:5px 12px;font-size:12.5px;color:var(--muted);background:var(--surface);
  white-space:nowrap;
}
.pill b{color:var(--text);font-weight:600}
.pill.mode{color:var(--amber);border-color:rgba(245,184,65,.35)}

.wrap{width:100%;max-width:720px;padding:8px 20px 70px}
.screen{display:none}
.screen.active{display:block;animation:rise .35s ease both}
@keyframes rise{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

/* ---------- hero ---------- */
.hero{text-align:center;margin:34px 0 36px}
.hero h1{
  font-family:var(--disp);font-weight:700;line-height:1.16;
  font-size:clamp(26px,5.6vw,42px);letter-spacing:-.01em;
}
.hero h1 span{color:var(--amber)}
.hero p{color:var(--muted);margin:14px auto 0;max-width:470px}

/* animated equalizer */
.eq{display:flex;gap:5px;justify-content:center;align-items:flex-end;height:44px;margin-bottom:22px}
.eq i{
  width:6px;border-radius:3px;background:linear-gradient(180deg,var(--amber),var(--amber-deep));
  animation:bounce 1.1s ease-in-out infinite alternate;
  opacity:.9;
}
.eq i:nth-child(1){height:30%;animation-delay:-.9s}
.eq i:nth-child(2){height:55%;animation-delay:-.7s}
.eq i:nth-child(3){height:80%;animation-delay:-.2s}
.eq i:nth-child(4){height:45%;animation-delay:-1s}
.eq i:nth-child(5){height:95%;animation-delay:-.5s}
.eq i:nth-child(6){height:60%;animation-delay:-.3s}
.eq i:nth-child(7){height:100%;animation-delay:-.8s}
.eq i:nth-child(8){height:60%;animation-delay:-.1s}
.eq i:nth-child(9){height:88%;animation-delay:-.6s}
.eq i:nth-child(10){height:40%;animation-delay:-.4s}
.eq i:nth-child(11){height:72%;animation-delay:-1.05s}
.eq i:nth-child(12){height:50%;animation-delay:-.25s}
.eq i:nth-child(13){height:34%;animation-delay:-.75s}
@keyframes bounce{from{transform:scaleY(.35)}to{transform:scaleY(1)}}
@media (prefers-reduced-motion:reduce){
  .eq i{animation:none}
  .screen.active{animation:none}
}

/* ---------- section heads ---------- */
.secthead{
  display:flex;align-items:center;gap:10px;
  font-family:var(--disp);font-size:13px;font-weight:500;letter-spacing:.12em;
  text-transform:uppercase;color:var(--muted);
  margin:30px 2px 14px;
}
.secthead span{color:var(--amber);font-family:var(--mono);font-size:12px}
.secthead::after{content:"";flex:1;height:1px;background:var(--line)}

/* ---------- mode tickets ---------- */
.mode-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media (max-width:560px){.mode-grid{grid-template-columns:1fr}}
.mode-card{
  position:relative;text-align:left;
  background:linear-gradient(180deg,var(--surface),var(--bg-2));
  border:1px solid var(--line);border-radius:16px;
  padding:18px 18px 16px;
  transition:transform .16s ease,border-color .16s ease,box-shadow .16s ease;
}
.mode-card:hover{transform:translateY(-2px)}
.mode-card.selected{
  border-color:var(--amber);
  box-shadow:0 0 0 1px var(--amber), 0 18px 42px -22px rgba(245,184,65,.35);
}
.mode-card.selected::after{
  content:"✓";position:absolute;top:12px;right:14px;
  width:22px;height:22px;border-radius:50%;
  background:var(--amber);color:#1a1406;font-weight:800;font-size:13px;
  display:flex;align-items:center;justify-content:center;
}
.mode-card.unavailable{opacity:.55}
.mode-tag{
  font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--amber);
}
.mode-card h3{font-family:var(--disp);font-size:17px;font-weight:700;margin:6px 0 6px}
.mode-card p{color:var(--muted);font-size:13.5px;line-height:1.5}
.mode-note{
  display:inline-block;margin-top:10px;
  font-family:var(--mono);font-size:11px;color:var(--green);
}
.mode-note.warn{color:var(--rose)}

/* ---------- difficulty cards ---------- */
.diff-grid{display:grid;gap:12px}
.diff-card{
  text-align:left;width:100%;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:16px 18px;display:flex;align-items:center;gap:16px;
  transition:transform .15s ease,border-color .15s ease;
}
.diff-card:hover{transform:translateY(-2px);border-color:rgba(245,184,65,.55)}
.diff-dot{width:12px;height:12px;border-radius:50%;flex:none;box-shadow:0 0 12px currentColor}
.diff-dot.easy{background:var(--green);color:var(--green)}
.diff-dot.medium{background:var(--amber);color:var(--amber)}
.diff-dot.hard{background:var(--rose);color:var(--rose)}
.diff-body{flex:1}
.diff-card h3{font-family:var(--disp);font-size:15px;font-weight:500}
.diff-card p{color:var(--muted);font-size:13.5px;margin-top:3px}
.count{font-family:var(--mono);font-size:12px;color:var(--muted);flex:none}

.mystats{
  margin-top:26px;display:flex;gap:8px;flex-wrap:wrap;justify-content:center;
  font-family:var(--mono);font-size:12px;color:var(--muted);
}
.mystats span{border:1px solid var(--line);border-radius:999px;padding:5px 12px;background:var(--surface)}
.mystats b{color:var(--amber);font-weight:600}
.footnote{color:var(--muted);font-size:12.5px;text-align:center;margin-top:22px;line-height:1.6}

/* ---------- game: unlock strip ---------- */
.stage-head{display:flex;align-items:baseline;justify-content:space-between;margin:26px 2px 10px}
.stage-head .label{font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.stage-head .time{font-family:var(--mono);font-size:13px;color:var(--amber)}
.strip{display:flex;gap:5px;height:36px;margin-bottom:22px}
.seg{
  position:relative;border-radius:9px;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);
}
.seg .fill{
  position:absolute;inset:0;width:0%;
  background:linear-gradient(180deg,#FFCF66,#EFA82A);
}
.seg .lab{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-size:11px;color:var(--muted);z-index:2;
}
.seg.unlocked{border-color:rgba(245,184,65,.55)}
.seg.unlocked .lab{color:var(--text)}
.seg.played .fill{width:100%;background:var(--amber-soft)}
.seg.current{box-shadow:0 0 18px -6px rgba(245,184,65,.55)}
.seg.current.playing .lab{color:#1a1406;font-weight:700}
.seg.locked .lab::before{content:"·"}
.seg.locked .lab{font-size:12px}

/* ---------- player ---------- */
.player{display:flex;flex-direction:column;align-items:center;gap:13px;margin:8px 0 24px}
.vinyl{
  width:124px;height:124px;border-radius:50%;
  background:
    radial-gradient(circle at 50% 50%, var(--amber) 0 18px, #0d0b16 19px 21px, #221b38 22px 100%);
  border:1px solid rgba(245,184,65,.5);
  position:relative;display:flex;align-items:center;justify-content:center;
  box-shadow:0 0 0 7px rgba(245,184,65,.06), 0 22px 46px -20px rgba(0,0,0,.95);
  transition:transform .15s ease;
}
.vinyl::before{content:"";position:absolute;inset:15px;border-radius:50%;border:1px dashed rgba(210,200,255,.15)}
.vinyl::after{content:"";position:absolute;inset:32px;border-radius:50%;border:1px dashed rgba(210,200,255,.10)}
.vinyl:hover{transform:scale(1.045)}
.vinyl:disabled{opacity:.45;cursor:default;transform:none}
.vinyl .glyph{
  position:relative;z-index:2;width:0;height:0;
  border-left:21px solid #1a1406;border-top:13px solid transparent;border-bottom:13px solid transparent;
  margin-left:5px;
}
.vinyl.playing{animation:spin 2.4s linear infinite}
.vinyl.playing .glyph{
  border:none;width:17px;height:23px;margin:0;
  border-left:5px solid #1a1406;border-right:5px solid #1a1406;
}
@keyframes spin{to{transform:rotate(360deg)}}
@media (prefers-reduced-motion:reduce){
  .vinyl.playing{animation:none}
  .diff-card:hover,.mode-card:hover{transform:none}
}
.play-hint{font-size:13px;color:var(--muted)}
.play-hint b{color:var(--amber);font-family:var(--mono);font-weight:600}

/* ---------- guessing ---------- */
.guessbox{position:relative}
.guessbox input{
  width:100%;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:15px 16px;color:var(--text);font-size:16px;font-family:var(--body);
  transition:border-color .15s ease;
}
.guessbox input:focus{border-color:rgba(245,184,65,.5)}
.guessbox input::placeholder{color:var(--muted)}
.suggest{
  position:absolute;left:0;right:0;top:calc(100% + 6px);z-index:20;
  background:var(--surface-2);border:1px solid var(--line-strong);border-radius:var(--radius);
  overflow:hidden;display:none;box-shadow:0 26px 54px -20px rgba(0,0,0,.9);
}
.suggest.open{display:block}
.suggest button{
  display:flex;width:100%;text-align:left;padding:11px 14px;gap:8px;align-items:baseline;
  background:none;border:none;font-size:15px;border-bottom:1px solid var(--line);
}
.suggest button:last-child{border-bottom:none}
.suggest button .artist{color:var(--muted);font-size:13px}
.suggest button.sel,.suggest button:hover{background:var(--amber-soft)}

.actions{display:flex;gap:10px;margin-top:12px}
.btn{
  border-radius:var(--radius);border:1px solid var(--line);
  padding:12px 18px;font-size:15px;font-weight:600;background:var(--surface);
  transition:border-color .15s ease,background .15s ease,transform .1s ease;
}
.btn:hover{border-color:rgba(245,184,65,.55)}
.btn:active{transform:translateY(1px)}
.btn.primary{background:var(--amber);border-color:var(--amber);color:#1a1406}
.btn.primary:hover{background:#ffc95e}
.btn.ghost{color:var(--muted)}
.btn:disabled{opacity:.45;cursor:default}
.btn.grow{flex:1}

/* ---------- history ---------- */
.history{margin-top:22px;display:grid;gap:8px}
.hrow{
  display:flex;align-items:center;gap:10px;
  border:1px solid var(--line);border-radius:10px;background:var(--surface);
  padding:10px 14px;font-size:14.5px;
  animation:rise .25s ease both;
}
.hrow .n{font-family:var(--mono);font-size:12px;color:var(--muted);width:16px;flex:none}
.hrow.skip{color:var(--muted);font-style:italic}
.hrow.wrong{border-color:rgba(228,87,123,.4)}
.hrow.wrong .mark{color:var(--rose)}
.hrow .mark{flex:none;font-weight:700}

/* ---------- notices, loading, toast ---------- */
.notice{
  margin-top:18px;border:1px solid rgba(228,87,123,.4);background:rgba(228,87,123,.08);
  border-radius:var(--radius);padding:14px 16px;font-size:14px;display:none;
}
.notice.show{display:block}
.notice .btn{margin-top:10px;margin-right:8px}
.loading{color:var(--muted);font-size:14px;text-align:center;margin:18px 0;display:none;align-items:center;justify-content:center;gap:9px}
.loading.show{display:flex}
.spinner{
  width:14px;height:14px;border-radius:50%;
  border:2px solid var(--line-strong);border-top-color:var(--amber);
  animation:spin .8s linear infinite;display:inline-block;
}
.toast{
  position:fixed;bottom:26px;left:50%;transform:translate(-50%,16px);
  background:var(--surface-2);border:1px solid var(--line-strong);border-radius:12px;
  padding:11px 18px;font-size:14px;box-shadow:0 18px 40px -14px rgba(0,0,0,.9);
  opacity:0;pointer-events:none;transition:opacity .25s ease,transform .25s ease;
  max-width:min(480px, calc(100vw - 40px));text-align:center;z-index:60;
}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* ---------- reveal ---------- */
.reveal{margin-top:26px}
.verdict{
  font-family:var(--disp);font-weight:700;text-align:center;
  font-size:clamp(20px,4.6vw,28px);margin-bottom:18px;
}
.verdict.win{color:var(--green)}
.verdict.loss{color:var(--rose)}
.card{
  border:1px solid var(--line-strong);border-radius:18px;overflow:hidden;
  background:linear-gradient(180deg,var(--surface),var(--bg-2));
  display:grid;
}
@media (min-width:600px){
  .card{grid-template-columns:240px 1fr;align-items:stretch}
  .card .artwrap{border-right:1px solid var(--line)}
}
.artwrap{background:var(--surface-2)}
.card .art{width:100%;height:100%;aspect-ratio:1;object-fit:cover;display:block}
.card .meta{padding:20px 22px;display:flex;flex-direction:column;justify-content:center}
.card h2{font-family:var(--disp);font-weight:500;font-size:19px;line-height:1.3}
.card .artist{color:var(--muted);margin-top:4px;font-size:15px}
.datarows{margin-top:14px}
.datarow{
  display:flex;justify-content:space-between;gap:14px;border-top:1px solid var(--line);
  padding:10px 0;font-size:14px;
}
.datarow .k{color:var(--muted)}
.datarow .v{text-align:right;font-weight:600}
.datarow .v.mono{font-family:var(--mono);font-weight:500;color:var(--amber)}
.approx{font-size:11.5px;color:var(--muted);margin-top:10px;line-height:1.5}
.reveal .actions{margin-top:16px}

/* ---------- misc ---------- */
.linkish{background:none;border:none;color:var(--muted);text-decoration:underline;font-size:13px;padding:0}
.subrow{display:flex;justify-content:space-between;align-items:center;margin-top:28px;gap:12px;flex-wrap:wrap}
.vol{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:13px}
.vol input{accent-color:var(--amber);width:110px}
#ytHost{position:fixed;left:-9999px;top:0;width:320px;height:200px;opacity:.001;pointer-events:none}