:root {
  --bg1: #fbf2ee;
  --bg2: #ece7f5;
  --stage1: #fffaf7;
  --stage2: #efe9f6;
  --ink: #2b2433;
  --muted: #7a7184;
  --card: rgba(255, 255, 255, 0.72);
  --line: rgba(60, 40, 80, 0.12);
  --accent: #c2577a;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  font: 14px/1.5 -apple-system, "PingFang SC", "Noto Sans SC", sans-serif;
  color: var(--ink);
  background: radial-gradient(120% 90% at 40% 30%, var(--bg1), var(--bg2)) fixed;
  overflow: hidden;
}

.layout {
  height: 100%;
  display: grid;
  grid-template-columns: 270px minmax(0, 1fr) 300px;
  gap: 16px;
  padding: 16px;
}

/* ---------- stage ---------- */
.stage-wrap { min-width: 0; min-height: 0; display: grid; place-items: center; }
.stage {
  position: relative;
  height: 100%;
  aspect-ratio: 0.62;
  max-width: 100%;
  border-radius: 22px;
  overflow: hidden;
  background: linear-gradient(180deg, var(--stage1) 0%, var(--stage1) 55%, var(--stage2) 100%);
  border: 1px solid var(--line);
  box-shadow: 0 18px 40px rgba(60, 40, 80, 0.12);
}
#view { position: absolute; inset: 0; width: 100%; height: 100%; display: block; touch-action: none; }
body.grab #view { cursor: grab; }
body.grabbing #view { cursor: grabbing; }
.fade-top {
  position: absolute; left: 0; right: 0; top: 0; height: 22%;
  background: linear-gradient(180deg, var(--stage1) 18%, rgba(255, 250, 247, 0));
  pointer-events: none;
}
#loading { position: absolute; inset: 0; display: grid; place-items: center; color: var(--muted); }
body.ready #loading { display: none; }
#grip {
  position: absolute; left: -9px; top: -9px; width: 18px; height: 18px; border-radius: 50%;
  border: 2px solid #fff; background: rgba(194, 87, 122, 0.55); box-shadow: 0 0 0 1px rgba(60, 40, 80, 0.3);
  pointer-events: none; display: none;
}
body.grabbing #grip { display: block; }
.stage-bar {
  position: absolute; left: 50%; bottom: 14px; transform: translateX(-50%);
  background: rgba(255, 255, 255, 0.8); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  padding: 4px; border-radius: 14px; border: 1px solid var(--line); flex-wrap: nowrap !important;
}
.stage-bar button { padding: 5px 12px; }
.icon-btn {
  position: absolute; top: 12px; right: 12px; width: 34px; height: 34px; border-radius: 50%;
  display: grid; place-items: center; padding: 0; cursor: pointer; color: var(--ink);
  background: rgba(255, 255, 255, 0.8); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--line);
}
.icon-btn .mute { display: none; }
.icon-btn.off { color: var(--muted); }
.icon-btn.off .mute { display: inline; }
.icon-btn.off .wave { display: none; }
#perf {
  position: absolute; left: 12px; top: 12px; margin: 0; padding: 6px 8px; border-radius: 8px;
  font: 11px/1.4 ui-monospace, Menlo, monospace; color: var(--ink); background: rgba(255, 255, 255, 0.8);
  pointer-events: none; white-space: pre;
}

/* ---------- side columns ---------- */
.info, #panel { overflow-y: auto; min-height: 0; }
.info { display: flex; flex-direction: column; gap: 12px; }
.brand h1 { margin: 0; font-size: 22px; letter-spacing: .02em; }
.brand p { margin: 0; color: var(--muted); font-size: 12px; }
.card, #panel {
  background: var(--card); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--line); border-radius: 16px;
}
.card { padding: 12px 14px; }
#panel { padding: 4px 16px 12px; }
#panel section { padding: 10px 0; border-bottom: 1px solid var(--line); }
#panel section:last-child { border-bottom: 0; }
h2 { font-size: 12px; font-weight: 600; color: var(--muted); margin: 6px 0 8px; letter-spacing: .05em; }
h2 small { font-weight: 400; margin-left: 4px; }
.card h2 { margin-top: 0; }

.spec-name { font-size: 16px; font-weight: 600; margin: 0 0 8px; }
.spec dl { display: grid; grid-template-columns: 40px 1fr; gap: 4px 8px; margin: 0; font-size: 13px; }
.spec dt { color: var(--muted); }
.spec dd { margin: 0; display: flex; align-items: center; gap: 8px; }
.meter { flex: 1; height: 6px; border-radius: 3px; background: rgba(60, 40, 80, 0.1); overflow: hidden; }
.meter i { display: block; height: 100%; background: var(--accent); border-radius: 3px; }
.spec b { font-weight: 500; font-variant-numeric: tabular-nums; min-width: 34px; text-align: right; }

.strip { display: grid; grid-template-columns: repeat(6, 1fr); gap: 6px; }
.strip button {
  border: 0; padding: 0; background: none; cursor: pointer; font: inherit; color: var(--muted); font-size: 11px;
}
.strip i {
  display: block; height: 64px; border-radius: 16px 16px 10px 10px; margin-bottom: 4px;
  box-shadow: inset 0 0 0 1px rgba(60, 40, 80, 0.12);
}
.strip button.on { color: var(--ink); font-weight: 600; }
.strip button.on i { box-shadow: 0 0 0 2px var(--accent); }

.patterns { display: grid; grid-template-columns: repeat(5, 1fr); gap: 8px 6px; }
.patterns button {
  border: 0; padding: 0; background: none; cursor: pointer; font: inherit; color: var(--muted); font-size: 11px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.patterns i {
  display: block; height: 52px; border-radius: 14px 14px 9px 9px; margin-bottom: 3px;
  box-shadow: inset 0 0 0 1px rgba(60, 40, 80, 0.12);
}
.patterns button.on { color: var(--ink); font-weight: 600; }
.patterns button.on i { box-shadow: 0 0 0 2px var(--accent); }
/* a generated pattern on a swatch: its mask, filled with the stocking colour */
i.pat { position: relative; }
i.pat::after {
  content: ""; position: absolute; inset: 0; border-radius: inherit; background: var(--c);
  -webkit-mask: var(--m) center / 110px 110px repeat; mask: var(--m) center / 110px 110px repeat;
}
.presets { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.presets button {
  display: flex; align-items: center; gap: 8px; padding: 6px 8px; border-radius: 10px; text-align: left;
  border: 1px solid var(--line); background: rgba(255, 255, 255, 0.7); cursor: pointer; font: inherit; color: var(--ink);
}
.presets i { width: 16px; height: 26px; border-radius: 8px 8px 5px 5px; flex: none; box-shadow: inset 0 0 0 1px rgba(60, 40, 80, 0.15); }
.presets span { font-size: 12px; white-space: nowrap; }

.progress-card { display: flex; gap: 12px; align-items: center; }
.progress-card h2 { margin: 0 0 2px; color: var(--ink); font-size: 13px; }
.ring {
  --p: 0; flex: none; width: 58px; height: 58px; border-radius: 50%; display: grid; place-items: center;
  background: conic-gradient(var(--accent) calc(var(--p) * 1%), rgba(60, 40, 80, 0.1) 0);
  position: relative; font-variant-numeric: tabular-nums; font-size: 13px; font-weight: 600;
}
.ring::before { content: ""; position: absolute; inset: 6px; border-radius: 50%; background: #fff; }
.ring span { position: relative; }

.row { display: flex; justify-content: space-between; margin-top: 6px; }
output { color: var(--muted); font-variant-numeric: tabular-nums; }
input[type=range] { width: 100%; accent-color: var(--accent); }
.seg { display: flex; gap: 6px; flex-wrap: wrap; }
.seg button {
  flex: 1; min-width: 0; padding: 7px 8px; border-radius: 10px; border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.7); color: var(--ink); cursor: pointer; font: inherit; white-space: nowrap;
}
.seg button.on { background: var(--ink); color: #fff; border-color: var(--ink); }
.seg button:disabled { color: var(--muted); cursor: not-allowed; opacity: .6; }
.swatches { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.swatches button {
  width: 28px; height: 28px; border-radius: 50%; background: var(--c); cursor: pointer;
  border: 2px solid #fff; box-shadow: 0 0 0 1px var(--line);
}
.swatches button.on { box-shadow: 0 0 0 2px var(--accent); }
input[type=color] { width: 32px; height: 30px; border: 0; padding: 0; background: none; cursor: pointer; }
.hint { color: var(--muted); font-size: 12px; margin: 0 0 8px; }
.status { font-size: 12px; margin: 8px 0 0; }

/* medium screens: no room for the info column */
@media (max-width: 1100px) {
  .layout { grid-template-columns: minmax(0, 1fr) 300px; }
  .info { display: none; }
}

/* phones: the stage stays on top, everything else scrolls under it */
@media (max-width: 720px) {
  body { overflow: auto; }
  .layout { display: flex; flex-direction: column; height: auto; padding: 0 12px 24px; gap: 0; }
  .stage-wrap { order: -1; position: sticky; top: 0; z-index: 2; margin: 0 -12px; padding: 8px 12px; background: var(--bg1); }
  .stage { height: 56vh; aspect-ratio: auto; width: 100%; border-radius: 18px; }
  #panel { margin-top: 12px; }
  .info { display: flex; margin-top: 12px; }
  .brand { display: none; }
}