/* spr.css — look de /spr en la línea de xautral (oscuro + menta). */
:root{
  --bg:#0a0f0c;
  --panel:#101813;
  --line:rgba(157,245,207,.14);
  --mint:#9df5cf;
  --mint-dim:#6ea88b;
  --mint-lo:#3f6152;
  --text:#dfeae4;
  --dim:#8b9a93;
  --danger:#ff7e7e;
  font-size:16px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:
    radial-gradient(900px 500px at 80% -10%, rgba(157,245,207,.07), transparent 60%),
    var(--bg);
  color:var(--text);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  min-height:100vh;
  display:flex;
  flex-direction:column;
}
a{color:var(--mint)}
.spr-top{padding:34px 22px 6px;text-align:center}
.spr-top h1{
  margin:.6rem 0 .3rem;
  font-size:1.35rem;
  letter-spacing:.14em;
  font-weight:700;
  color:var(--mint);
  text-transform:uppercase;
}
.spr-top h1::first-letter{color:var(--mint-dim)}
.spr-sub{color:var(--dim);font-size:.8rem;max-width:52ch;margin:0 auto;line-height:1.6}
.spr-home{
  display:inline-block;
  font-size:.68rem;
  text-transform:uppercase;
  letter-spacing:.24em;
  color:var(--mint-dim);
  text-decoration:none;
  padding:4px 10px;
  border:1px solid var(--line);
  border-radius:999px;
  transition:color .18s ease,border-color .18s ease;
}
.spr-home:hover{color:var(--mint);border-color:var(--mint-lo)}
.spr-main{
  width:min(680px, 92vw);
  margin:26px auto 0;
  flex:1;
}
.spr-card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:14px;
  padding:18px;
  margin-bottom:16px;
}
.spr-drop{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:6px;
  width:100%;
  padding:34px 16px;
  background:transparent;
  border:2px dashed var(--line);
  border-radius:10px;
  color:var(--dim);
  cursor:pointer;
  font:inherit;
  transition:border-color .18s ease,color .18s ease,background .18s ease;
}
.spr-drop:hover,.spr-card.dragover .spr-drop{
  border-color:var(--mint-lo);
  color:var(--mint);
  background:rgba(157,245,207,.04);
}
.spr-drop-icon{font-size:1.6rem;color:var(--mint-dim)}
.spr-drop strong{color:var(--text);font-size:.92rem;letter-spacing:.04em}
.spr-drop span:last-child{font-size:.72rem}
.spr-hint{text-align:center;color:var(--mint-lo);font-size:.68rem;margin:.8rem 0 0}
.spr-noscript{
  text-align:center;color:var(--danger);
  border:1px solid var(--danger);padding:10px 14px;border-radius:10px;width:min(680px,92vw);margin:18px auto;
}
.spr-file-meta{
  font-size:.72rem;color:var(--dim);
  border-bottom:1px solid var(--line);
  padding-bottom:10px;margin-bottom:8px;
  word-break:break-all;
}
.spr-file-meta b{color:var(--mint)}
.spr-controls{display:block}
label.spr-knob{display:block;margin:16px 0}
.spr-knob-head{
  display:flex;align-items:center;justify-content:space-between;
  font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--dim);
  margin-bottom:8px;
}
.spr-knob-head b{color:var(--text);font-weight:600}
.spr-knob-head output{color:var(--mint);font-weight:700;text-transform:none;letter-spacing:.04em}
input[type=range]{
  width:100%;height:4px;appearance:none;-webkit-appearance:none;
  background:linear-gradient(var(--mint-lo),var(--mint-lo)) no-repeat,
             var(--line);
  background-size:var(--fill,50%) 100%;
  border-radius:999px;outline:none;margin:4px 0;
}
input[type=range]::-webkit-slider-thumb{
  -webkit-appearance:none;appearance:none;
  width:15px;height:15px;border-radius:50%;
  background:var(--mint);border:2px solid var(--bg);
  box-shadow:0 0 0 1px var(--mint-lo);
  cursor:pointer;
}
input[type=range]::-moz-range-thumb{
  width:13px;height:13px;border-radius:50%;
  background:var(--mint);border:2px solid var(--bg);
  box-shadow:0 0 0 1px var(--mint-lo);cursor:pointer;
}
.spr-knob-scale{display:flex;justify-content:space-between;font-size:.62rem;color:var(--mint-lo);padding-top:2px}
.spr-toggle{display:inline-flex;align-items:center;margin:0 4px}
.spr-toggle input{display:none}
.spr-toggle span{
  width:30px;height:17px;border-radius:999px;background:var(--line);
  position:relative;transition:background .18s ease;
}
.spr-toggle span::after{
  content:"";position:absolute;top:2px;left:2px;width:13px;height:13px;border-radius:50%;
  background:var(--dim);transition:transform .18s ease,background .18s ease;
}
.spr-toggle input:checked + span{background:var(--mint-lo)}
.spr-toggle input:checked + span::after{transform:translateX(13px);background:var(--mint)}
.spr-q select{
  background:var(--bg);color:var(--text);border:1px solid var(--line);
  border-radius:8px;padding:5px 8px;font:inherit;font-size:.68rem;text-transform:none;
}
.spr-out{text-align:center}
.spr-out-state{color:var(--dim);font-size:.78rem}
.spr-spinner{
  display:inline-block;width:22px;height:22px;margin:12px auto;
  border:2px solid var(--line);border-top-color:var(--mint);border-radius:50%;
  animation:sprspin .8s linear infinite;
}
@keyframes sprspin{to{transform:rotate(360deg)}}
#spr-out .spr-out-done p{color:var(--mint);font-size:.8rem}
#out-audio{width:100%;margin:10px 0;filter:invert(.92) hue-rotate(120deg) saturate(2)}
.spr-out-actions{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:8px}
.spr-btn{
  display:inline-block;text-decoration:none;cursor:pointer;
  background:var(--mint);color:#04120b;font-weight:700;
  border:1px solid var(--mint);border-radius:999px;
  padding:11px 22px;font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;
  transition:filter .18s ease;
}
.spr-btn:hover{filter:brightness(1.08)}
.spr-btn-ghost{background:transparent;color:var(--mint)}
.spr-btn:disabled{opacity:.45;cursor:not-allowed}
.spr-foot{text-align:center;color:var(--mint-lo);font-size:.68rem;padding:22px;line-height:1.7}
.spr-danger{color:var(--danger)!important}