*{ margin:0; padding:0; box-sizing:border-box; font-family:'Segoe UI',system-ui,sans-serif; }
body{ overflow:hidden; background:#020617; color:#e2e8f0; user-select:none; }
#sandboxContainer{ position:fixed; inset:0; width:100vw; height:100vh; z-index:0; }

/* ========= HUD ========= */
.hud{ position:fixed; inset:0; pointer-events:none; z-index:10; }

/* TOPBAR */
.topbar{
  position:absolute; top:0; left:0; right:0;
  display:flex; justify-content:space-between; align-items:center;
  padding:14px 24px;
  background:rgba(2,6,23,0.7);
  border-bottom:1px solid rgba(34,197,94,0.15);
  backdrop-filter:blur(16px);
  pointer-events:auto;
}
.logo{ font-size:22px; font-weight:800; color:#22c55e; letter-spacing:3px; text-shadow:0 0 20px rgba(34,197,94,0.3); }
.topbar-center{ display:flex; align-items:center; gap:12px; }
.topbar-right{ display:flex; align-items:center; gap:12px; }
.object-count{ font-size:12px; color:rgba(255,255,255,0.25); letter-spacing:1px; white-space:nowrap; }
.tool-group{ display:flex; gap:4px; }
.tool-btn{
  pointer-events:auto; width:40px; height:40px; border:none; border-radius:10px;
  background:rgba(255,255,255,0.04); color:rgba(255,255,255,0.6); font-size:18px;
  cursor:pointer; transition:0.15s; border:1px solid transparent;
}
.tool-btn:hover{ background:rgba(34,197,94,0.1); color:#22c55e; }
.tool-btn.active{ background:rgba(34,197,94,0.15); color:#22c55e; border-color:rgba(34,197,94,0.3); box-shadow:0 0 16px rgba(34,197,94,0.15); }
.divider{ width:1px; height:28px; background:rgba(255,255,255,0.08); }
.action-btn{
  pointer-events:auto; padding:8px 18px; border:none; border-radius:10px;
  background:rgba(34,197,94,0.12); color:#22c55e; font-size:13px; font-weight:600;
  cursor:pointer; transition:0.15s; border:1px solid rgba(34,197,94,0.15);
}
.action-btn:hover{ background:rgba(34,197,94,0.2); }
.action-btn.active{ background:rgba(34,197,94,0.2); border-color:rgba(34,197,94,0.4); box-shadow:0 0 12px rgba(34,197,94,0.15); }
.action-btn.danger{ background:rgba(239,68,68,0.12); color:#ef4444; border-color:rgba(239,68,68,0.15); }
.action-btn.danger:hover{ background:rgba(239,68,68,0.2); }
.action-btn.small{ padding:6px 14px; font-size:12px; }
.back-btn{
  pointer-events:auto; text-decoration:none; color:rgba(255,255,255,0.6); font-size:13px;
  padding:8px 16px; border-radius:10px; transition:0.15s;
  background:rgba(255,255,255,0.03); border:1px solid rgba(255,255,255,0.06);
}
.back-btn:hover{ background:rgba(34,197,94,0.1); color:#22c55e; }

/* STATUS INDICATOR */
.status-bar{
  position:absolute; top:72px; left:50%; transform:translateX(-50%);
  font-size:11px; letter-spacing:2px; color:rgba(255,255,255,0.15);
  pointer-events:none;
}

/* TRANSFORM PANEL */
.transform-panel{
  position:absolute; bottom:90px; left:50%; transform:translateX(-50%);
  width:520px; background:rgba(2,6,23,0.85);
  border:1px solid rgba(34,197,94,0.15); border-radius:16px;
  backdrop-filter:blur(20px); pointer-events:auto;
  display:none; overflow:hidden;
  box-shadow:0 0 40px rgba(34,197,94,0.05);
}
.panel-header{
  display:flex; justify-content:space-between; align-items:center;
  padding:12px 18px; border-bottom:1px solid rgba(255,255,255,0.05);
  font-size:13px; font-weight:600; color:rgba(34,197,94,0.8);
}
.panel-close{ background:none; border:none; color:rgba(255,255,255,0.3); cursor:pointer; font-size:16px; }
.panel-close:hover{ color:#ef4444; }
.panel-body{ padding:14px 18px 18px; }
.transform-group{ margin-bottom:10px; }
.transform-group label{ font-size:11px; color:rgba(255,255,255,0.3); letter-spacing:1px; margin-bottom:4px; display:block; }
.transform-row{ display:flex; gap:10px; }
.tf{ flex:1; display:flex; align-items:center; gap:6px; }
.tf span{ font-size:11px; color:rgba(255,255,255,0.25); width:14px; text-align:right; }
.tf input[type="range"]{
  flex:1; height:4px; -webkit-appearance:none; appearance:none;
  background:rgba(255,255,255,0.08); border-radius:2px; outline:none;
}
.tf input[type="range"]::-webkit-slider-thumb{
  -webkit-appearance:none; width:14px; height:14px; border-radius:50%;
  background:#22c55e; cursor:pointer; border:2px solid rgba(2,6,23,0.8);
  box-shadow:0 0 8px rgba(34,197,94,0.3);
}
.transform-actions{ display:flex; gap:8px; margin-top:12px; padding-top:10px; border-top:1px solid rgba(255,255,255,0.04); }

/* DIALOG */
.dialog-overlay{
  position:fixed; inset:0; z-index:100; display:none;
  justify-content:center; align-items:center;
  background:rgba(2,6,23,0.7); backdrop-filter:blur(8px);
  pointer-events:auto;
}
.dialog{
  background:rgba(2,6,23,0.95); border:1px solid rgba(34,197,94,0.15);
  border-radius:20px; padding:28px; width:380px; max-height:70vh; overflow-y:auto;
}
.dialog h2{ font-size:18px; margin-bottom:16px; color:#22c55e; }
.scene-item{
  display:flex; justify-content:space-between; align-items:center;
  padding:12px 16px; background:rgba(255,255,255,0.03); border-radius:10px;
  margin-bottom:6px; transition:0.15s; cursor:pointer;
}
.scene-item:hover{ background:rgba(34,197,94,0.08); }
.scene-item .name{ font-size:14px; }
.scene-item .date{ font-size:11px; color:rgba(255,255,255,0.25); }
.scene-item .load-btn{
  padding:6px 14px; background:rgba(34,197,94,0.12); border:none; border-radius:8px;
  color:#22c55e; font-size:12px; cursor:pointer; transition:0.15s;
}
.scene-item .load-btn:hover{ background:rgba(34,197,94,0.2); }
.scene-item .del-btn{
  padding:6px 10px; background:rgba(239,68,68,0.1); border:none; border-radius:8px;
  color:#ef4444; font-size:12px; cursor:pointer; margin-left:6px;
}
.hud-input{
  width:100%; padding:12px 16px; border-radius:12px; border:1px solid rgba(255,255,255,0.08);
  background:rgba(255,255,255,0.04); color:white; font-size:14px; outline:none; margin-bottom:10px;
}
.hud-input:focus{ border-color:rgba(34,197,94,0.3); }

/* HELP DIALOG */
.help-dialog{ max-width:420px; }
.help-grid{ display:flex; flex-direction:column; gap:6px; margin-top:8px; }
.help-grid > div{ display:flex; align-items:center; gap:10px; padding:6px 10px; background:rgba(255,255,255,0.02); border-radius:8px; font-size:13px; }
.help-grid kbd{
  background:rgba(255,255,255,0.06); border:1px solid rgba(255,255,255,0.08);
  border-radius:6px; padding:2px 8px; font-size:11px; color:rgba(255,255,255,0.6);
  font-family:inherit; min-width:48px; text-align:center;
}
.help-grid .gesture-icon{ font-size:16px; width:28px; text-align:center; }

/* CAM TOGGLE */
.cam-toggle-btn.locked{
  cursor:pointer;
  opacity:0.6;
  border-color:rgba(239,68,68,0.15);
  background:rgba(239,68,68,0.05);
  color:rgba(255,255,255,0.3);
  position:relative;
  padding-left:32px;
}
.cam-toggle-btn.locked::before,
.cam-toggle-btn.locked::after{
  content:'';
  position:absolute;
  top:50%; width:14px; height:1.5px;
  background:rgba(239,68,68,0.15);
}
.cam-toggle-btn.locked::before{ left:-12px; transform:rotate(-20deg); }
.cam-toggle-btn.locked::after{ left:-12px; transform:rotate(20deg); }
.cam-toggle-btn.locked .lock-icon{ margin-right:4px; font-size:13px; }
.cam-toggle-btn.locked:hover{
  opacity:0.8;
  border-color:rgba(239,68,68,0.25);
  color:rgba(255,255,255,0.5);
}
.cam-toggle-btn{
  position:fixed; bottom:24px; right:270px;
  z-index:5; padding:10px 18px; border:none; border-radius:12px;
  background:rgba(34,197,94,0.1); border:1px solid rgba(34,197,94,0.15);
  color:rgba(255,255,255,0.6); font-size:13px; cursor:pointer;
  backdrop-filter:blur(12px); transition:0.2s;
  pointer-events:auto;
}
.cam-toggle-btn:hover{ background:rgba(34,197,94,0.2); color:#22c55e; }
.cam-toggle-btn.on{ background:rgba(34,197,94,0.2); color:#22c55e; border-color:rgba(34,197,94,0.3); }

/* CAM PIP */
.cam-pip{
  position:fixed; bottom:24px; right:24px;
  width:240px; height:180px; object-fit:cover;
  border-radius:12px; border:1px solid rgba(34,197,94,0.12);
  z-index:5; opacity:0.7; pointer-events:none;
}

/* VOICE BTN */
#voiceBtn{
  position:fixed; bottom:30px; left:50%; transform:translateX(-50%);
  z-index:5; width:52px; height:52px; border:none; border-radius:50%;
  background:rgba(34,197,94,0.12);
  border:1px solid rgba(34,197,94,0.2);
  color:white; font-size:20px; cursor:pointer;
  backdrop-filter:blur(12px); transition:0.2s;
}
#voiceBtn:hover{ background:rgba(34,197,94,0.2); }
#voiceBtn.listening{ background:rgba(239,68,68,0.2); border-color:rgba(239,68,68,0.3); box-shadow:0 0 24px rgba(239,68,68,0.15); }