:root{
  --bg:#0b0b0e; --panel:#141419; --ink:#f4f1ea; --muted:#8b8a93;
  --accent:#e0573e; --accent-2:#f0b35b; --line:#26262e; --ok:#5ad19a;
}
*{box-sizing:border-box}
html,body{height:100%;margin:0}
body{
  background:
    radial-gradient(1200px 600px at 70% -10%, rgba(224,87,62,.16), transparent 60%),
    radial-gradient(900px 500px at 10% 110%, rgba(240,179,91,.10), transparent 55%),
    var(--bg);
  color:var(--ink); font-family:"Spline Sans",system-ui,-apple-system,sans-serif;
}
.center{min-height:100vh;display:grid;place-items:center;padding:24px}
.card{
  width:min(420px,100%); background:linear-gradient(180deg,#16161c,#101015);
  border:1px solid var(--line); border-radius:18px; padding:38px 34px;
  box-shadow:0 30px 80px -30px rgba(0,0,0,.9);
}
.badge{font:600 12px/1 "Spline Sans";letter-spacing:.28em;text-transform:uppercase;color:var(--accent-2)}
h1{font-family:"Bricolage Grotesque","Spline Sans",sans-serif;font-weight:800;font-size:32px;line-height:1.05;margin:14px 0 6px;letter-spacing:-.02em}
p.sub{margin:0 0 24px;color:var(--muted);font-size:14px}
label{display:block;font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin:0 0 8px}
input{width:100%;background:#0c0c10;border:1px solid var(--line);color:var(--ink);border-radius:11px;padding:14px 15px;font:500 16px "Spline Sans";outline:none;transition:border-color .15s,box-shadow .15s}
input:focus{border-color:var(--accent);box-shadow:0 0 0 4px rgba(224,87,62,.15)}
button{margin-top:18px;width:100%;cursor:pointer;border:0;border-radius:11px;padding:14px 16px;font:700 15px "Bricolage Grotesque","Spline Sans",sans-serif;color:#160c08;background:linear-gradient(180deg,var(--accent-2),var(--accent));transition:transform .08s,filter .15s}
button:hover{filter:brightness(1.06)} button:active{transform:translateY(1px)}
button.ghost{background:#1a1a21;color:var(--ink);border:1px solid var(--line)}
.err{margin-top:16px;font-size:13px;color:#ff9a86;min-height:18px}
.hidden{display:none}
.tc{text-align:center}

/* app page */
.appwrap{display:flex;flex-direction:column;height:100vh}
header{display:flex;align-items:center;gap:14px;padding:10px 16px;background:linear-gradient(180deg,#16161c,#0f0f13);border-bottom:1px solid var(--line);flex-wrap:wrap}
.logo{font-family:"Bricolage Grotesque","Spline Sans",sans-serif;font-weight:800;font-size:18px;display:flex;align-items:center;gap:9px}
.dot{width:9px;height:9px;border-radius:50%;background:var(--accent)}
.pill{display:inline-flex;align-items:center;gap:7px;font-size:12.5px;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:6px 11px}
.pill .live{width:7px;height:7px;border-radius:50%;background:var(--ok)}
.spacer{flex:1}
.controls{display:flex;align-items:center;gap:9px;flex-wrap:wrap}
.controls button,.controls label.btn{margin:0;width:auto;padding:9px 13px;font:600 13px "Spline Sans",sans-serif;border-radius:10px}
.libsel{width:auto;margin:0;padding:9px 13px;font:600 13px "Spline Sans",sans-serif;border-radius:10px;background:#1a1a21;border:1px solid var(--line);color:var(--ink);max-width:220px}
label.btn{cursor:pointer;border:1px solid var(--line);background:#1a1a21;color:var(--ink);display:inline-block}
label.btn.primary,button.primary{border:0;color:#160c08;background:linear-gradient(180deg,var(--accent-2),var(--accent))}
input[type=file]{display:none}
#stage{flex:1;position:relative;background:#000}
#frame{position:absolute;inset:0;width:100%;height:100%;border:0}
.overlay{position:absolute;inset:0;display:none;place-items:center;text-align:center;background:rgba(4,4,6,.88);padding:24px}
.overlay.show{display:grid}
.overlay h2{font-family:"Bricolage Grotesque","Spline Sans",sans-serif;font-weight:800;font-size:24px;margin:0 0 8px}
.overlay p{color:var(--muted);margin:0;max-width:440px}
.toast{position:fixed;left:50%;bottom:22px;transform:translateX(-50%) translateY(20px);background:#1c1c23;border:1px solid var(--line);border-radius:12px;padding:11px 15px;font-size:13.5px;opacity:0;transition:opacity .2s,transform .2s;max-width:90vw;word-break:break-all}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.toast code{color:var(--accent-2)}