:root{
  --bg:#0b0b0b;
  --fg:#f2f2f2;
  --muted:rgba(242,242,242,.65);
  --hair:rgba(242,242,242,.12);
  --accent:#d7d2c7;
}

html,body{
  margin:0; padding:0; height:100%;
  background:var(--bg); color:var(--fg);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial;
  letter-spacing: .1px;
}

a{ color:inherit; text-decoration:none; border-bottom:1px solid var(--hair); }
a:hover{ border-bottom-color: var(--fg); }

.topbar{
  position:fixed; top:0; left:0; right:0;
  height:56px;
  display:flex; align-items:center; justify-content:space-between;
  padding:0 18px;
  background:rgba(11,11,11,.82);
  border-bottom:1px solid var(--hair);
  z-index:50;
  backdrop-filter: blur(8px);
}
.brand .title{ font-weight:600; font-size:14px; }
.brand .subtitle{ font-size:12px; color:var(--muted); margin-top:2px; }

.page{ height:100%; padding-top:56px; }

.toolLayout{
  display:grid;
  grid-template-columns: 360px 1fr;
  height: calc(100vh - 56px);
}

.panel{
  padding:16px 18px;
  border-right:1px solid var(--hair);
  overflow:auto;
}

.stage{
  position:relative;
  overflow:hidden;
}

h2{
  margin:0 0 12px;
  font-size:16px;
  font-weight:600;
}
h3{
  margin:18px 0 8px;
  font-size:11px;
  font-weight:600;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--muted);
}

label{ display:block; font-size:12px; color:var(--muted); margin:10px 0 4px; }
small{ display:block; font-size:11px; color:var(--muted); margin-top:6px; }

textarea{
  width:100%;
  min-height:96px;
  resize:vertical;
  background:transparent;
  color:var(--fg);
  border:1px solid var(--hair);
  padding:10px 10px;
  font-size:12px;
  line-height:1.4;
  outline:none;
}
textarea:focus{ border-color: rgba(242,242,242,.28); }

input[type="file"], select{
  width:100%;
  color:var(--fg);
  background:transparent;
  border:1px solid var(--hair);
  padding:8px 10px;
  font-size:12px;
  outline:none;
}
input[type="range"]{ width:100%; }

.row{ display:flex; gap:10px; flex-wrap:wrap; margin-top:10px; }

.btn{
  background:transparent;
  color:var(--fg);
  border:1px solid var(--hair);
  padding:8px 10px;
  font-size:12px;
  cursor:pointer;
}
.btn:hover{ border-color: rgba(242,242,242,.35); }
.btn:disabled{ opacity:.45; cursor:not-allowed; }

hr{ border:none; border-top:1px solid var(--hair); margin:16px 0; }

canvas{
  position:absolute; inset:0;
  width:100% !important;
  height:100% !important;
  display:block;
}

@media (max-width: 980px){
  .toolLayout{ grid-template-columns: 1fr; height:auto; }
  .panel{ border-right:none; border-bottom:1px solid var(--hair); }
  .stage{ height:60vh; min-height:340px; }
}