:root{
  --bg:#0b0d12;
  --ink:#e8ecf4;
  --dim:#8a93a6;
  --line:rgba(255,255,255,.10);
  --glass:rgba(18,21,29,.72);
  --accent:#6ee7ff;
  --accent2:#a78bfa;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);overflow:hidden;
  font:14px/1.45 "Segoe UI",system-ui,-apple-system,sans-serif;
  -webkit-font-smoothing:antialiased;
}
#stage{position:fixed;inset:0}
canvas{display:block}

#brand{position:fixed;top:22px;left:26px;pointer-events:none;z-index:5}
#brand h1{
  margin:0;font-size:19px;font-weight:700;letter-spacing:.34em;
  background:linear-gradient(90deg,var(--accent),var(--accent2));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
#brand p{margin:4px 0 0;font-size:11.5px;color:var(--dim);letter-spacing:.02em}
#brand em{color:#c9d3e6;font-style:normal}

#panel{
  position:fixed;top:0;right:0;height:100%;width:302px;z-index:6;
  padding:20px 18px 26px;overflow-y:auto;
  background:var(--glass);backdrop-filter:blur(14px);
  border-left:1px solid var(--line);
}
#panel::-webkit-scrollbar{width:8px}
#panel::-webkit-scrollbar-thumb{background:#2a3040;border-radius:8px}

.group{padding:14px 0;border-bottom:1px solid var(--line)}
.group:last-of-type{border-bottom:0}
.ttl{display:block;font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--dim);margin-bottom:10px}
.hint{margin:9px 2px 0;font-size:11px;color:var(--dim);line-height:1.4}

.row{display:grid;grid-template-columns:96px 1fr 40px;align-items:center;gap:8px;margin:7px 0}
.row span{font-size:11.5px;color:#b7c0d2}
.row b{font-size:11px;color:var(--accent);text-align:right;font-weight:600;font-variant-numeric:tabular-nums}
.row.hide{display:none}
.hide{display:none}

input[type=range]{
  -webkit-appearance:none;appearance:none;height:3px;border-radius:3px;
  width:100%;min-width:0;background:#2b3243;outline:none;
}
input[type=range]::-webkit-slider-thumb{
  -webkit-appearance:none;width:13px;height:13px;border-radius:50%;
  background:var(--ink);border:2px solid #0b0d12;
  box-shadow:0 0 8px rgba(110,231,255,.5);cursor:pointer;
}
input[type=range]::-moz-range-thumb{
  width:13px;height:13px;border-radius:50%;background:var(--ink);
  border:2px solid #0b0d12;cursor:pointer;
}

.seg{display:flex;background:#151a24;border:1px solid var(--line);border-radius:9px;padding:3px;gap:3px}
.seg.wrap{display:grid;grid-template-columns:1fr 1fr;gap:3px}
.seg.wrap button{padding:7px 4px;font-size:11.5px}
.seg button{
  flex:1;padding:8px 6px;border:0;border-radius:6px;background:transparent;
  color:var(--dim);font-size:12px;font-weight:600;cursor:pointer;transition:.18s;
}
.seg button.on{background:linear-gradient(135deg,#1e6f83,#3b3a86);color:#fff}
.seg button:hover:not(.on){color:var(--ink)}

.chips{display:flex;flex-wrap:wrap;gap:6px;margin-top:4px}
.chips button{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 11px 6px 8px;border-radius:8px;border:1px solid var(--line);
  background:#151a24;color:var(--dim);font-size:11.5px;cursor:pointer;transition:.18s;
}
/* vraie case à cocher */
.chips button::before{
  content:"";flex:none;width:14px;height:14px;border-radius:4px;
  border:1.5px solid rgba(255,255,255,.38);background:#0b0f16;transition:.15s;
  background-repeat:no-repeat;background-position:center;background-size:11px;
}
.chips button:hover{color:var(--ink);border-color:rgba(255,255,255,.24)}
.chips button:hover::before{border-color:rgba(255,255,255,.6)}
.chips button.on{background:rgba(110,231,255,.13);border-color:rgba(110,231,255,.5);color:var(--accent)}
/* boutons d'action : pas de case à cocher */
.chips.plain button{padding:7px 13px;border-radius:20px}
.chips.plain button::before{content:none}
.chips button.on::before{
  background-color:var(--accent);border-color:var(--accent);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cpath d='M2.4 6.3 4.8 8.7 9.6 3.3' fill='none' stroke='%23061018' stroke-width='2.1' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
}

button.big{
  width:100%;padding:11px;margin-bottom:9px;border:0;border-radius:9px;cursor:pointer;
  background:linear-gradient(135deg,var(--accent),var(--accent2));color:#06131a;
  font-size:12.5px;font-weight:700;letter-spacing:.02em;transition:.18s;
}
button.big:hover{filter:brightness(1.1);transform:translateY(-1px)}
button.big:active{transform:translateY(0)}

#stats{
  margin-top:14px;padding:11px 12px;border-radius:9px;background:#10141d;
  border:1px solid var(--line);font-size:11px;color:var(--dim);line-height:1.7;
  font-variant-numeric:tabular-nums;
}
#stats b{color:#c9d3e6;font-weight:600}

#drop{
  position:fixed;inset:0;z-index:20;display:none;place-items:center;
  background:rgba(11,13,18,.82);backdrop-filter:blur(3px);
  font-size:17px;letter-spacing:.04em;color:var(--accent);
  border:2px dashed rgba(110,231,255,.45);
}
#drop.on{display:grid}

#msg{
  position:fixed;left:50%;bottom:34px;transform:translateX(-50%);z-index:22;
  max-width:640px;padding:13px 18px;border-radius:10px;
  background:rgba(120,30,40,.94);border:1px solid rgba(255,120,140,.4);
  font-size:12.5px;line-height:1.5;
}
#msg[hidden]{display:none}
#msg code{background:rgba(0,0,0,.35);padding:1px 6px;border-radius:4px}

@media (max-width:820px){
  #panel{width:100%;height:46%;top:auto;bottom:0;border-left:0;border-top:1px solid var(--line)}
  #brand{top:14px;left:16px}
}