:root {
  --bg: #17191c;
  --panel: #22252a;
  --panel-2: #2b2f35;
  --text: #e5e7eb;
  --muted: #a7afba;
  --line: #3a4049;
  --accent: #75a8ff;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;
}

#app {
  display: grid;
  grid-template-columns: 380px 1fr;
  height: 100vh;
  overflow: hidden;
}

#controls {
  border-right: 1px solid var(--line);
  background: linear-gradient(180deg, #1f2227 0%, #17191c 100%);
  overflow: auto;
  padding: 12px;
}

.section {
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 8px;
  padding: 10px;
  margin-bottom: 10px;
}

.section h3 {
  margin: 0 0 8px;
  font-size: 13px;
  color: var(--muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  align-items: center;
  margin-bottom: 8px;
}

.row label { font-size: 12px; color: var(--text); }
.row output { font-size: 11px; color: var(--muted); min-width: 48px; text-align: right; }
input[type='range'], input[type='number'], select, button, input[type='text'] {
  width: 100%;
}

input[type='range'] { accent-color: var(--accent); }
input[type='number'], select, input[type='text'], button {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 6px;
  height: 30px;
  padding: 0 8px;
}
button { cursor: pointer; }
button:hover { border-color: var(--accent); }

.inline {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

#canvasWrap {
  overflow: auto;
  padding: 16px;
}

canvas {
  display: block;
  background: #fff;
  box-shadow: 0 0 0 1px #111, 0 14px 40px rgba(0,0,0,0.35);
}

.note { font-size: 11px; color: var(--muted); line-height: 1.35; }