:root{
  --bg:#0d0f14;
  --bg-2:#151922;
  --line:#252b38;
  --text:#eef1f7;
  --dim:#8a93a6;
  --gap:10px;
  --safe-t:env(safe-area-inset-top,0px);
  --safe-b:env(safe-area-inset-bottom,0px);
  --safe-l:env(safe-area-inset-left,0px);
  --safe-r:env(safe-area-inset-right,0px);
}

*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}

html,body{height:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font:500 16px/1.3 -apple-system,BlinkMacSystemFont,"Segoe UI",system-ui,sans-serif;
  overscroll-behavior:none;
  -webkit-user-select:none;user-select:none;
  -webkit-touch-callout:none;
}

/* ---------- top bar ---------- */
#topbar{
  position:sticky;top:0;z-index:20;
  padding:calc(var(--safe-t) + 10px) calc(var(--safe-r) + 14px) 10px calc(var(--safe-l) + 14px);
  background:rgba(13,15,20,.82);
  backdrop-filter:saturate(160%) blur(14px);
  -webkit-backdrop-filter:saturate(160%) blur(14px);
  border-bottom:1px solid var(--line);
}
.bar-row{display:flex;align-items:center;gap:12px}
.bar-row + .bar-row{margin-top:10px}
#topbar h1{margin:0;font-size:19px;font-weight:700;letter-spacing:-.2px;flex:1}

.stop-btn{
  display:flex;align-items:center;gap:7px;
  min-height:38px;padding:0 15px;
  border:1px solid #4a2230;border-radius:19px;
  background:#2a141c;color:#ff8fa3;
  font:700 14px/1 inherit;
  touch-action:manipulation;cursor:pointer;
}
.stop-btn:active{background:#3a1a25;transform:scale(.96)}
.stop-glyph{width:10px;height:10px;background:currentColor;border-radius:2px;display:block}

.controls{gap:14px}
.vol{flex:1;display:flex;align-items:center;gap:9px;min-width:0}
.vol svg{width:19px;height:19px;flex:none;fill:var(--dim);stroke:var(--dim)}

input[type=range]{
  flex:1;min-width:0;height:26px;margin:0;
  background:transparent;-webkit-appearance:none;appearance:none;
}
input[type=range]::-webkit-slider-runnable-track{height:5px;border-radius:3px;background:var(--line)}
input[type=range]::-webkit-slider-thumb{
  -webkit-appearance:none;width:22px;height:22px;margin-top:-8.5px;
  border-radius:50%;background:var(--text);border:none;
  box-shadow:0 1px 5px rgba(0,0,0,.5);
}
input[type=range]::-moz-range-track{height:5px;border-radius:3px;background:var(--line)}
input[type=range]::-moz-range-thumb{width:22px;height:22px;border:none;border-radius:50%;background:var(--text)}

.toggle{
  min-height:34px;padding:0 15px;flex:none;
  border:1px solid var(--line);border-radius:17px;
  background:var(--bg-2);color:var(--dim);
  font:700 13px/1 inherit;letter-spacing:.3px;
  touch-action:manipulation;cursor:pointer;
}
.toggle[aria-pressed="true"]{background:#1b3350;border-color:#2d5b8f;color:#9fd0ff}

.search{
  width:100%;margin-top:10px;height:38px;padding:0 14px;
  border:1px solid var(--line);border-radius:10px;
  background:var(--bg-2);color:var(--text);
  font:500 16px/1 inherit;
  -webkit-appearance:none;appearance:none;
}
.search::placeholder{color:var(--dim)}
.search:focus{outline:none;border-color:#2d5b8f}

/* ---------- pad grid ---------- */
.board{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(150px,1fr));
  gap:var(--gap);
  padding:var(--gap) calc(var(--safe-r) + var(--gap)) calc(var(--safe-b) + 28px) calc(var(--safe-l) + var(--gap));
}
@media (max-width:400px){
  .board{grid-template-columns:repeat(2,1fr)}
}

.pad{
  position:relative;overflow:hidden;
  aspect-ratio:1/.82;
  display:flex;flex-direction:column;justify-content:flex-end;
  padding:12px;
  border:1px solid hsl(var(--h) 48% 34%);
  border-radius:16px;
  background:
    radial-gradient(120% 100% at 50% 0%, hsl(var(--h) 58% 32%) 0%, hsl(var(--h) 52% 19%) 70%);
  color:var(--text);
  font:inherit;text-align:left;
  touch-action:manipulation;cursor:pointer;
  transition:transform .07s ease-out, filter .12s ease-out;
}
.pad:active{transform:scale(.965)}

.pad .label{
  font-size:15px;font-weight:650;line-height:1.2;
  word-break:break-word;
  text-shadow:0 1px 3px rgba(0,0,0,.55);
}

.pad .num{
  position:absolute;top:10px;left:12px;
  font-size:11px;font-weight:700;color:hsl(var(--h) 60% 72%);opacity:.6;
}

.pad .loop{
  position:absolute;top:8px;right:10px;
  font-size:11px;font-weight:800;letter-spacing:.5px;
  color:hsl(var(--h) 80% 78%);
  opacity:0;transition:opacity .15s;
}
.pad.looping .loop{opacity:1}

/* playing state */
.pad.playing{
  filter:brightness(1.5) saturate(1.15);
  box-shadow:0 0 0 2px hsl(var(--h) 70% 55%), 0 0 22px -2px hsl(var(--h) 70% 45%);
}

.pad .progress{
  position:absolute;left:0;bottom:0;height:4px;width:100%;
  transform:scaleX(0);transform-origin:left;
  background:hsl(var(--h) 85% 65%);
}

/* not yet decoded */
.pad.loading{opacity:.45}
.pad.error{opacity:.4;border-style:dashed}
.pad.error .label::after{content:" — failed";color:#ff8fa3;font-weight:500}

.hidden{display:none !important}

.empty{
  margin:64px auto;padding:0 32px;max-width:340px;
  color:var(--dim);text-align:center;line-height:1.7;font-size:15px;
}
.empty code{
  background:var(--bg-2);border:1px solid var(--line);
  padding:2px 6px;border-radius:5px;font-size:13px;color:var(--text);
}

/* ---------- loading bar ---------- */
.loader{
  position:fixed;left:0;right:0;bottom:0;height:3px;
  background:transparent;z-index:30;pointer-events:none;
}
.loader-bar{
  height:100%;width:0;
  background:linear-gradient(90deg,#4f9dff,#8b6cff);
  transition:width .2s ease-out,opacity .4s .3s;
}