:root {
  --bg:      #040608;
  --surface: #0b0e14;
  --border:  rgba(70,130,255,0.13);
  --accent:  #3d8eff;
  --text:    #b8cce8;
  --dim:     #3d5470;
}
*,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0; }
html,body { height: 100%; overflow: hidden; background: var(--bg); color: var(--text);
  font-family: ui-monospace,'Cascadia Code','Fira Code','Consolas',monospace; font-size: 11px; }
body { display: flex; flex-direction: column; }

header { flex: 0 0 48px; display: flex; align-items: center; padding: 0 16px; gap: 18px;
  background: var(--surface); border-bottom: 1px solid var(--border); overflow: hidden; }
.logo { font-size: 12px; letter-spacing: .1em; color: var(--accent); white-space: nowrap; }
.logo small { color: var(--dim); font-size: 10px; }
.vr { width: 1px; height: 20px; background: var(--border); flex-shrink: 0; }
.stats { display: flex; gap: 20px; }
.stat { display: flex; gap: 6px; align-items: baseline; }
.stat-label { color: var(--dim); }
.stat-value { color: var(--accent); min-width: 30px; font-variant-numeric: tabular-nums; }
#s-fps .stat-value { color: #28e87a; }

.main { flex: 1 1 0; min-height: 0; display: flex; overflow: hidden; }

.stage { flex: 1 1 0; min-width: 0; min-height: 0; position: relative; background: var(--bg); overflow: hidden; }
#canvas { display: block; width: 100%; height: 100%; cursor: crosshair; }
.hint { position: absolute; bottom: 14px; left: 14px; font-size: 10px; color: var(--dim);
  letter-spacing: .07em; pointer-events: none; user-select: none; }

.sidebar { flex: 0 0 256px; display: flex; flex-direction: column; background: var(--surface);
  border-left: 1px solid var(--border); overflow-y: auto; overflow-x: hidden;
  scrollbar-width: thin; scrollbar-color: var(--border) transparent; }
.sidebar::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

.panel { padding: 12px 13px; border-bottom: 1px solid var(--border); flex-shrink: 0; }
.panel-title { font-size: 9px; letter-spacing: .15em; text-transform: uppercase; color: var(--dim); margin-bottom: 10px; }

.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 5px; }
.chip { display: flex; flex-direction: column; align-items: center; gap: 3px; padding: 7px 4px;
  background: rgba(255,255,255,.025); border: 1px solid var(--border); border-radius: 4px;
  color: var(--text); font-family: inherit; font-size: 10px; cursor: pointer; line-height: 1;
  transition: background .12s,border-color .12s,color .12s; }
.chip:hover { background: rgba(61,142,255,.09); border-color: rgba(61,142,255,.5); color: #fff; }
.chip.active { background: rgba(61,142,255,.15); border-color: var(--accent); color: var(--accent); }
.chip-icon { font-size: 17px; }

.field { margin-bottom: 10px; }
.field:last-child { margin-bottom: 0; }
.field-header { display: flex; justify-content: space-between; margin-bottom: 5px; color: var(--dim); }
.field-val { color: var(--text); }

input[type=range] { width: 100%; height: 3px; -webkit-appearance: none; appearance: none;
  background: rgba(61,142,255,.14); border-radius: 2px; outline: none; cursor: pointer; }
input[type=range]::-webkit-slider-thumb { -webkit-appearance: none; width: 12px; height: 12px;
  border-radius: 50%; background: var(--accent); cursor: pointer; box-shadow: 0 0 6px rgba(61,142,255,.4); }
input[type=range]::-moz-range-thumb { width: 12px; height: 12px; border-radius: 50%;
  background: var(--accent); border: none; cursor: pointer; }

.toggle-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.toggle-row:last-child { margin-bottom: 0; }
.toggle-label { color: var(--dim); }
.toggle { position: relative; width: 30px; height: 15px; flex-shrink: 0; }
.toggle input { position: absolute; opacity: 0; width: 0; height: 0; }
.toggle-track { position: absolute; inset: 0; background: rgba(255,255,255,.05);
  border: 1px solid var(--border); border-radius: 8px; cursor: pointer;
  transition: background .15s,border-color .15s; }
.toggle-track::before { content: ''; position: absolute; width: 9px; height: 9px; top: 2px; left: 2px;
  border-radius: 50%; background: var(--dim); transition: transform .15s,background .15s; }
.toggle input:checked + .toggle-track { background: rgba(61,142,255,.2); border-color: var(--accent); }
.toggle input:checked + .toggle-track::before { transform: translateX(15px); background: var(--accent); }

.btn { width: 100%; padding: 8px 10px; background: rgba(255,255,255,.03); border: 1px solid var(--border);
  color: var(--text); font-family: inherit; font-size: 10px; letter-spacing: .05em; border-radius: 4px;
  cursor: pointer; text-align: left; margin-bottom: 5px;
  transition: background .12s,border-color .12s,color .12s; }
.btn:last-child { margin-bottom: 0; }
.btn:hover { background: rgba(61,142,255,.08); border-color: rgba(61,142,255,.45); color: #fff; }
.btn.primary { background: rgba(61,142,255,.12); border-color: var(--accent); color: var(--accent); }
.btn.primary:hover { background: rgba(61,142,255,.22); color: #fff; }
.btn.danger:hover { background: rgba(255,55,55,.09); border-color: rgba(255,55,55,.4); color: #ff6666; }

footer { flex: 0 0 36px; display: flex; align-items: center; padding: 0 14px; gap: 14px;
  background: var(--surface); border-top: 1px solid var(--border); overflow: hidden; color: var(--dim); }
.pulse { width: 6px; height: 6px; border-radius: 50%; background: #28e87a; box-shadow: 0 0 6px #28e87a;
  flex-shrink: 0; animation: pulse 2s ease-in-out infinite; }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.25} }
#footer-status { color: var(--text); }
.keys { margin-left: auto; display: flex; gap: 12px; white-space: nowrap; }
kbd { background: rgba(255,255,255,.05); border: 1px solid var(--border); border-radius: 3px;
  padding: 1px 5px; font-family: inherit; font-size: 9px; }