/* Synthndr FM panel, on top of the shared style.css. Rows: algorithm + operator overview,
   the selected operator's editor, then the global modulators, voice and toy stage.
   Orange = carriers (heard), cyan = modulators, pink = toy stage, white = voice. */

:root {
  --toy: #ff7eb6;
  --toy-dim: rgba(255, 126, 182, 0.18);
}

.synth.fm {
  height: 800px;
  grid-template-rows: 36px 176px 1fr 180px 84px;
  --fader-w: 36px;
}

.section.toy { --accent: var(--toy); --accent-dim: var(--toy-dim); }
.section.toy .fader-cap::after { background: var(--toy); }

.fm #row-mod .display { height: 44px; margin-bottom: 6px; }
.fm .fader-track { min-height: 48px; }
.fm .fader-label { font-size: 9px; letter-spacing: 0.04em; }
.fm .switch { min-width: 44px; }

/* Enum switches with many options: two columns. */
.switch.cols-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px 3px;
  align-content: start;
}
.switch.cols-2 .switch-label { grid-column: 1 / -1; }
.switch.cols-2 button { padding: 0 4px; gap: 4px; }

/* ---------- macros ---------- */
.section.macro { flex: 0 0 auto; --fader-w: 46px; }
.section.macro .controls { gap: 2px; }

/* ---------- algorithm ---------- */
.section[aria-label="Algorithm"] { flex: 0 0 318px; }
.algo-nav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.algo-nav .step { width: 22px; height: 22px; font-size: 14px; }
.algo-num { min-width: 22px; text-align: center; font: 600 13px var(--font-num); color: var(--accent); }
.algo-browse {
  height: 22px;
  margin-left: 4px;
  padding: 0 8px;
  border: 1px solid var(--panel-edge);
  border-radius: 3px;
  background: var(--panel);
  color: var(--ink);
  font: 10px var(--font-num);
  cursor: pointer;
}
.algo-browse:hover { border-color: #4a4b51; }

.algo-picker {
  position: absolute;
  z-index: 5;
  left: 16px;
  right: 16px;
  top: 56px;
  padding: 12px 14px 14px;
  border: 1px solid var(--panel-edge);
  border-radius: 6px;
  background: var(--panel-raised);
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.6);
}
.algo-picker[hidden] { display: none; }
.algo-picker-head { display: flex; align-items: baseline; gap: 14px; margin-bottom: 10px; }
.algo-picker-head h2 { margin: 0; font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase; }
.algo-picker-head p { margin: 0; flex: 1; font-size: 11px; color: var(--ink-muted); }
.algo-grid { display: grid; grid-template-columns: repeat(8, 1fr); gap: 8px; }
.algo-choice {
  height: 92px;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 2px;
  padding: 4px 4px 3px;
  border: 1px solid var(--panel-edge);
  border-radius: 3px;
  background: var(--display);
  color: var(--ink-muted);
  font: 10px var(--font-num);
  cursor: pointer;
}
.algo-choice canvas { flex: 1 1 auto; min-height: 0; width: 100%; }
.algo-choice:hover { border-color: #4a4b51; color: var(--ink); }
.algo-choice[aria-current="true"] { border-color: var(--signal); color: var(--signal); box-shadow: inset 0 0 0 1px var(--signal); }
.algo-body { flex: 1 1 auto; display: flex; gap: 10px; min-height: 0; }
.display.algo-diagram { flex: 1 1 auto; height: auto; margin: 0; cursor: pointer; }
.algo-body .controls { flex: 0 0 auto; gap: 4px; }

/* ---------- operator overview ---------- */
.op-cards { flex: 1 1 auto; display: flex; gap: 8px; min-height: 0; }
.op-card {
  --accent: var(--mod);
  flex: 1 1 0;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 6px 8px 7px;
  border: 1px solid var(--panel-edge);
  border-radius: 3px;
  background: var(--panel);
  cursor: pointer;
  text-align: left;
  color: inherit;
  font: inherit;
}
.op-card.carrier { --accent: var(--signal); }
.op-card:hover { border-color: #4a4b51; }
.op-card[aria-pressed="true"] { border-color: var(--accent); box-shadow: inset 0 0 0 1px var(--accent); }
.op-card.off .op-ratio, .op-card.off .op-eg, .op-card.off .op-level { opacity: 0.35; }
.op-head { display: flex; align-items: center; gap: 6px; }
.op-name { font-size: 11px; font-weight: 700; letter-spacing: 0.12em; }
.op-role { font-size: 9px; letter-spacing: 0.08em; color: var(--accent); text-transform: uppercase; }
.op-on {
  margin-left: auto;
  width: 10px; height: 10px;
  padding: 0;
  border: 1px solid #000;
  border-radius: 50%;
  background: #3a3a3a;
  cursor: pointer;
}
.op-on[aria-pressed="true"] { background: var(--accent); box-shadow: 0 0 6px var(--accent); }
.op-ratio { font: 600 19px var(--font-num); color: var(--accent); white-space: nowrap; overflow: hidden; }
.op-ratio small { font-size: 11px; color: var(--ink-muted); margin-left: 3px; }
.op-level { display: flex; align-items: center; gap: 6px; font: 10px var(--font-num); color: var(--ink-muted); }
.op-level-bar { flex: 1 1 auto; height: 4px; border-radius: 2px; background: var(--groove); overflow: hidden; }
.op-level-bar div { height: 100%; background: var(--accent); opacity: 0.8; }
.display.op-eg { flex: 1 1 auto; height: auto; min-height: 0; margin: 0; }
.op-foot { display: flex; align-items: center; gap: 6px; font: 10px var(--font-num); color: var(--ink-muted); }
.op-foot svg { width: 18px; height: 10px; stroke: currentColor; fill: none; stroke-width: 1.5; }

/* ---------- operator editor ---------- */
.editor-body { flex: 1 1 auto; display: flex; gap: 14px; min-height: 0; }
.editor-body[hidden] { display: none; }
.display.editor-eg { flex: 0 0 250px; height: auto; margin: 0; touch-action: none; }
.subgroups { flex: 1 1 auto; display: flex; gap: 16px; min-width: 0; }
.subgroup { display: flex; flex-direction: column; min-width: 0; }
.subgroup-label {
  margin-bottom: 5px;
  padding-top: 3px;
  border-top: 1px solid var(--panel-edge);
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-muted);
}
.subgroup .controls { justify-content: flex-start; gap: 2px; }
.section-head .op-tabs { display: flex; gap: 4px; margin-left: auto; }