:root {
  --bg: #05020a;
  --panel: rgba(16, 8, 28, 0.72);
  --line: rgba(255, 255, 255, 0.09);
  --text: #efe9ff;
  --muted: #9a8fb8;
  --accent: #2ee6ff;
  --hot: #ff4fd8;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 14px/1.4 'Space Grotesk', system-ui, sans-serif;
  min-height: 100vh;
  overflow-x: hidden;
}

.bg {
  position: fixed; inset: -20%;
  z-index: -1;
  background:
    radial-gradient(40% 35% at 20% 30%, rgba(255, 79, 216, 0.22), transparent 70%),
    radial-gradient(35% 40% at 80% 20%, rgba(46, 230, 255, 0.18), transparent 70%),
    radial-gradient(45% 40% at 60% 85%, rgba(155, 107, 255, 0.2), transparent 70%),
    radial-gradient(30% 30% at 10% 90%, rgba(182, 255, 59, 0.1), transparent 70%);
  filter: blur(40px);
  animation: drift 40s linear infinite;
}
@keyframes drift {
  0%   { transform: rotate(0deg) scale(1);    filter: blur(40px) hue-rotate(0deg); }
  50%  { transform: rotate(180deg) scale(1.15); filter: blur(40px) hue-rotate(90deg); }
  100% { transform: rotate(360deg) scale(1);  filter: blur(40px) hue-rotate(0deg); }
}
@media (prefers-reduced-motion: reduce) { .bg { animation: none; } }

.top {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 12px; padding: 14px 20px;
}
.brand { display: flex; flex-direction: column; }
.logo {
  margin: 0; font-size: 26px; font-weight: 700; letter-spacing: 0.12em;
  background: linear-gradient(90deg, #ff4fd8, #2ee6ff, #b6ff3b, #ffa62b, #9b6bff, #ff4fd8);
  background-size: 300% 100%;
  -webkit-background-clip: text; background-clip: text; color: transparent;
  animation: flow 12s linear infinite;
}
@keyframes flow { to { background-position: 300% 0; } }
.tag { color: var(--muted); font-size: 12px; letter-spacing: 0.04em; }

.transport { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }

.btn, .seg button {
  font: inherit; color: var(--text); cursor: pointer;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--line); border-radius: 10px;
  padding: 7px 12px;
  transition: background .15s, border-color .15s, box-shadow .15s;
}
.btn:hover, .seg button:hover { background: rgba(255, 255, 255, 0.12); }
.btn.primary {
  background: linear-gradient(135deg, rgba(255, 79, 216, 0.45), rgba(46, 230, 255, 0.45));
  border-color: rgba(255, 255, 255, 0.25); font-weight: 700; min-width: 92px;
}
.btn.primary.on { box-shadow: 0 0 18px rgba(46, 230, 255, 0.55); }
.btn.impala { border-color: rgba(255, 225, 77, 0.45); }
.btn.arp { border-color: rgba(255, 79, 216, 0.45); }
.btn.glide { border-color: rgba(71, 255, 176, 0.45); }
.btn.small { padding: 5px 10px; font-size: 12px; }
.btn:disabled { opacity: .5; cursor: wait; }

.field { display: inline-flex; align-items: center; gap: 6px; color: var(--muted); font-size: 12px; }
.field.wide { display: flex; justify-content: space-between; margin: 6px 0; }
input[type=number], select {
  font: inherit; color: var(--text);
  background: rgba(0, 0, 0, 0.35); border: 1px solid var(--line); border-radius: 8px;
  padding: 5px 7px;
}
input[type=number] { width: 64px; }
select option { background: #160c26; }

.lab {
  display: grid; grid-template-columns: 240px minmax(0, 1fr);
  gap: 16px; padding: 0 20px 24px;
}
.panel {
  display: flex; flex-direction: column; gap: 14px;
  background: var(--panel); border: 1px solid var(--line); border-radius: 16px;
  padding: 14px; backdrop-filter: blur(10px);
  align-self: start;
}
.panel h2 {
  margin: 0 0 8px; font-size: 11px; font-weight: 500;
  text-transform: uppercase; letter-spacing: 0.14em; color: var(--muted);
}

.palette { display: flex; flex-direction: column; gap: 4px; margin-bottom: 8px; }
.swatch {
  display: grid; grid-template-columns: 22px 1fr auto; align-items: center; gap: 10px;
  font: inherit; color: var(--text); text-align: left; cursor: pointer;
  background: transparent; border: 1px solid transparent; border-radius: 10px;
  padding: 5px 8px;
}
.swatch:hover { background: rgba(255, 255, 255, 0.05); }
.swatch .dot { width: 18px; height: 18px; border-radius: 50%; background: var(--c); box-shadow: 0 0 10px var(--c); }
.swatch .nm { font-weight: 500; }
.swatch .ds { display: block; color: var(--muted); font-size: 11px; font-weight: 400; }
.swatch kbd { color: var(--muted); font: 11px 'Space Grotesk', sans-serif; }
.swatch.on { border-color: var(--c); background: color-mix(in srgb, var(--c) 14%, transparent); }
.eraser.on { border-color: #fff; background: rgba(255, 255, 255, 0.18); }

.seg { display: grid; grid-template-columns: repeat(3, 1fr); gap: 4px; margin-bottom: 8px; }
.seg button { padding: 6px 0; font-size: 12px; }
.seg button.on { border-color: var(--accent); background: rgba(46, 230, 255, 0.16); }

.slider { display: grid; grid-template-columns: 64px 1fr 28px; align-items: center; gap: 6px; color: var(--muted); font-size: 12px; margin: 4px 0; }
.slider output { text-align: right; color: var(--text); }
.check { display: flex; align-items: center; gap: 8px; margin: 4px 0; cursor: pointer; }
input[type=range] { width: 100%; accent-color: var(--accent); }
input[type=checkbox] { accent-color: var(--hot); }

.stage { min-width: 0; }
.canvas-wrap {
  display: flex; gap: 0; width: 100%;
  border: 1px solid var(--line); border-radius: 16px; overflow: hidden;
  background: #06030b;
  box-shadow: 0 0 60px rgba(155, 107, 255, 0.15);
}
canvas { display: block; }
#grid { touch-action: none; cursor: crosshair; flex: 1 1 auto; min-width: 0; }
#grid.move { cursor: ns-resize; }
#keys { flex: 0 0 auto; border-right: 1px solid var(--line); }
.mirror-box { position: relative; flex: 0 0 auto; border-left: 1px solid var(--line); }
.mirror-label {
  position: absolute; top: 6px; left: 8px; font-size: 10px; letter-spacing: .14em;
  text-transform: uppercase; color: var(--muted); pointer-events: none;
}

.status {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px;
  padding: 8px 4px; color: var(--muted); font-size: 12px;
}
#hover { color: var(--text); font-variant-numeric: tabular-nums; }
#piece { color: var(--hot); }

.barbar { padding-top: 6px; }
.bar-chips { display: flex; gap: 3px; }
.bar-chips button {
  flex: 1 1 0; min-width: 0; font: inherit; font-size: 12px; color: var(--muted); cursor: pointer;
  background: rgba(255, 255, 255, 0.05); border: 1px solid var(--line); border-radius: 8px; padding: 4px 0;
}
.bar-chips button:hover { background: rgba(255, 255, 255, 0.1); color: var(--text); }
.bar-chips button.on { color: var(--text); border-color: var(--accent); background: rgba(46, 230, 255, 0.16); }
.bar-tools { display: flex; flex-wrap: wrap; gap: 6px; padding-top: 6px; }

.fx {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(96px, 1fr)); gap: 10px;
  background: var(--panel); border: 1px solid var(--line); border-radius: 16px;
  padding: 12px 14px;
}
.knob { display: flex; flex-direction: column; gap: 2px; font-weight: 500; }
.knob small { color: var(--muted); font-weight: 400; font-size: 11px; }

@media (max-width: 900px) {
  .lab { grid-template-columns: minmax(0, 1fr); padding: 0 16px 20px; }
  .top { padding: 12px 16px; }
  /* phone: colours above the canvas, the rest below it */
  .panel { display: contents; }
  .panel section {
    background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 12px;
  }
  .panel section:first-child { order: 1; padding: 8px; }
  .stage { order: 2; }
  .panel section:nth-child(2) { order: 3; }
  .panel section:nth-child(3) { order: 4; }
  .panel section:nth-child(4) { order: 5; }
  .panel section:first-child h2 { display: none; }
  .palette { display: grid; grid-template-columns: repeat(5, 1fr); gap: 4px; margin-bottom: 6px; }
  .swatch { grid-template-columns: 1fr; justify-items: center; gap: 3px; padding: 6px 2px; font-size: 11px; }
  .swatch .ds, .swatch kbd { display: none; }
  .swatch .dot { width: 22px; height: 22px; }
  .eraser { width: 100%; }
  .fx { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .hint { display: none; }
}
.bar-tools .btn:disabled { cursor: not-allowed; }