:root {
  --ink: #05060a;
  --panel: rgba(8, 10, 15, 0.88);
  --panel-solid: rgba(7, 9, 13, 0.97);
  --line: rgba(190, 205, 235, 0.10);
  --line-strong: rgba(190, 205, 235, 0.20);
  --text: #ccd2df;
  --dim: #69707f;
  --faint: #454b58;
  --accent: #e0567f;
  --mono: "Iosevka", "JetBrains Mono", "IBM Plex Mono", "SFMono-Regular", ui-monospace, "DejaVu Sans Mono", monospace;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Liberation Serif", "DejaVu Serif", Georgia, serif;
  --rail: 306px;
}

* { box-sizing: border-box; }

[hidden] { display: none !important; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--ink);
  color: var(--text);
  font-family: var(--mono);
  font-size: 13px;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}

.shell { position: fixed; inset: 0; }

#field {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  touch-action: none;
  cursor: crosshair;
}

/* ── control rail ───────────────────────────────────────── */

.panel {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--rail);
  display: flex;
  flex-direction: column;
  background: var(--panel-solid);
  border-right: 1px solid var(--line);
  transition: transform 460ms cubic-bezier(0.16, 1, 0.3, 1), opacity 300ms ease;
  z-index: 3;
}

.panel::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.014) 0 1px, transparent 1px 3px);
  mix-blend-mode: overlay;
}

.shell.bare .panel { transform: translateX(-100%); opacity: 0; }
.shell.bare .hud { opacity: 0.25; }

.masthead { padding: 26px 22px 16px; border-bottom: 1px solid var(--line); }

.wordmark {
  margin: 0;
  font-family: var(--serif);
  font-weight: 400;
  font-size: 40px;
  line-height: 0.9;
  letter-spacing: -0.02em;
  color: #e9edf5;
}

.wordmark::first-letter { color: var(--accent); transition: color 400ms ease; }

.subtitle {
  margin: 10px 0 0;
  font-size: 9.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--faint);
}

.subtitle .sep { margin: 0 7px; color: var(--accent); opacity: 0.7; }

.species-name {
  margin: 12px 0 0;
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}

.preset-note {
  margin: 6px 0 0;
  font-size: 11px;
  line-height: 1.55;
  color: var(--dim);
  font-family: var(--serif);
  font-style: italic;
  letter-spacing: 0.01em;
}

/* ── instrument plots ───────────────────────────────────── */

.plots {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-bottom: 1px solid var(--line);
}

.plot { margin: 0; padding: 12px 14px 10px; }
.plot + .plot { border-left: 1px solid var(--line); }

.plot figcaption {
  font-size: 8.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--faint);
  margin-bottom: 7px;
}

.plot figcaption em { font-family: var(--serif); font-size: 11.5px; letter-spacing: 0; color: var(--dim); text-transform: none; }

.plot canvas {
  display: block;
  width: 100%;
  height: 44px;
  background:
    linear-gradient(rgba(255, 255, 255, 0.018), rgba(255, 255, 255, 0));
  border: 1px solid var(--line);
}

/* ── scroll body ────────────────────────────────────────── */

.panel-scroll { flex: 1; overflow-y: auto; overscroll-behavior: contain; }
.panel-scroll::-webkit-scrollbar { width: 8px; }
.panel-scroll::-webkit-scrollbar-thumb { background: var(--line-strong); }
.panel-scroll::-webkit-scrollbar-track { background: transparent; }

.group { border-bottom: 1px solid var(--line); }

.group-head {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 13px 22px;
  background: none;
  border: 0;
  cursor: pointer;
  font: inherit;
  color: var(--text);
}

.group-head:hover { background: rgba(255, 255, 255, 0.022); }

.group-title {
  font-size: 9.5px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text);
}

.group-mark { position: relative; width: 9px; height: 9px; opacity: 0.55; }
.group-mark::before, .group-mark::after {
  content: "";
  position: absolute;
  background: currentColor;
  transition: transform 280ms cubic-bezier(0.16, 1, 0.3, 1), opacity 200ms ease;
}
.group-mark::before { left: 0; right: 0; top: 4px; height: 1px; }
.group-mark::after { top: 0; bottom: 0; left: 4px; width: 1px; transform: scaleY(0); }
.group.collapsed .group-mark::after { transform: scaleY(1); }

.group-body {
  padding: 0 22px 18px;
  display: grid;
  gap: 15px;
}

.group.collapsed .group-body { display: none; }

.group-hint {
  margin: -2px 0 3px;
  font-size: 10px;
  line-height: 1.5;
  color: var(--faint);
}

/* ── controls ───────────────────────────────────────────── */

.control { display: block; }

.control-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 6px;
}

.control-label {
  font-size: 10.5px;
  color: var(--dim);
  letter-spacing: 0.03em;
  white-space: nowrap;
}

.control-value {
  font-size: 11px;
  font-variant-numeric: tabular-nums;
  color: var(--text);
}

body[data-rings="1"] .control[data-key="beta2"],
body[data-rings="1"] .control[data-key="beta3"],
body[data-rings="2"] .control[data-key="beta3"] { display: none; }

.slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 14px;
  background: transparent;
  cursor: ew-resize;
  display: block;
}

.slider::-webkit-slider-runnable-track { height: 1px; background: var(--line-strong); }
.slider::-moz-range-track { height: 1px; background: var(--line-strong); }

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 9px;
  height: 9px;
  margin-top: -4px;
  border-radius: 50%;
  background: var(--accent);
  border: 0;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 18%, transparent), 0 0 14px color-mix(in srgb, var(--accent) 70%, transparent);
  transition: box-shadow 180ms ease, transform 180ms ease;
}
.slider::-moz-range-thumb {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  border: 0;
  background: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 18%, transparent), 0 0 14px color-mix(in srgb, var(--accent) 70%, transparent);
}
.slider:hover::-webkit-slider-thumb { transform: scale(1.25); }
.slider:active::-webkit-slider-thumb { transform: scale(1.35); }
.slider:focus-visible { outline: none; }
.slider:focus-visible::-webkit-slider-thumb { box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 32%, transparent); }

.select {
  width: 100%;
  padding: 7px 9px;
  font: inherit;
  font-size: 11px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--line-strong);
  border-radius: 0;
  cursor: pointer;
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--dim) 50%), linear-gradient(135deg, var(--dim) 50%, transparent 50%);
  background-position: calc(100% - 13px) 13px, calc(100% - 9px) 13px;
  background-size: 4px 4px, 4px 4px;
  background-repeat: no-repeat;
}

.select:hover { border-color: color-mix(in srgb, var(--accent) 45%, var(--line-strong)); }
.select:focus-visible { outline: 1px solid var(--accent); outline-offset: 1px; }
.select option { background: #0b0e14; color: var(--text); }

.toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  cursor: pointer;
}

.toggle-row .control-label { font-size: 11px; color: var(--text); }

.toggle-input { position: absolute; opacity: 0; width: 0; height: 0; }

.toggle-track {
  position: relative;
  flex: 0 0 auto;
  width: 34px;
  height: 16px;
  border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.03);
  transition: border-color 220ms ease, background 220ms ease, box-shadow 260ms ease;
}

.toggle-knob {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 10px;
  height: 10px;
  background: var(--dim);
  transition: transform 260ms cubic-bezier(0.16, 1, 0.3, 1), background 220ms ease;
}

.toggle-row.on .toggle-track {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 14%, transparent);
  box-shadow: 0 0 16px -4px var(--accent), inset 0 0 12px -8px var(--accent);
}

.toggle-row.on .toggle-knob {
  transform: translateX(18px);
  background: var(--accent);
}

.toggle-input:focus-visible + .toggle-track { outline: 1px solid var(--accent); outline-offset: 2px; }

.group-readout {
  margin: -4px 0 0;
  font-size: 10px;
  line-height: 1.5;
  color: var(--faint);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.group-readout[data-live="true"] { color: var(--accent); }

.meter {
  display: block;
  width: 100%;
  border: 1px solid var(--line);
  background: linear-gradient(rgba(255, 255, 255, 0.018), rgba(255, 255, 255, 0));
}

body[data-bridge="auth"] .control[data-key="audioEnabled"],
body[data-bridge="off"] .control[data-key="audioEnabled"],
body[data-bridge="off"] .control[data-key="paletteFromArt"],
body[data-bridge="off"] .control[data-key="speciesPerTrack"],
body[data-bridge="off"] .control[data-key="audioDrive"],
body[data-bridge="off"] .control[data-key="audioBass"],
body[data-bridge="off"] .control[data-key="audioMid"],
body[data-bridge="off"] .control[data-key="audioTreble"],
body[data-bridge="off"] .control[data-key="audioChannels"],
body[data-bridge="off"] .control[data-key="audioSpawn"],
body[data-bridge="off"] .control[data-key="audioNutrient"],
body[data-bridge="off"] .control[data-key="audioStarve"],
body[data-bridge="auth"] .meter,
body[data-bridge="off"] .meter {
  opacity: 0.32;
  pointer-events: none;
}

.swatches { display: flex; gap: 4px; min-height: 12px; }
.swatches:empty { display: none; }

.swatch {
  flex: 1;
  height: 12px;
  border: 1px solid rgba(0, 0, 0, 0.4);
  box-shadow: 0 0 8px -3px currentColor;
}

.actions { display: flex; gap: 8px; }

.action {
  flex: 1;
  padding: 8px 6px;
  font: inherit;
  font-size: 9.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--dim);
  background: transparent;
  border: 1px solid var(--line-strong);
  cursor: pointer;
  transition: color 200ms ease, border-color 200ms ease, box-shadow 240ms ease, background 200ms ease;
}

.action:hover {
  color: #eef1f7;
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 10%, transparent);
  box-shadow: 0 0 18px -4px var(--accent), inset 0 0 14px -8px var(--accent);
}

.action:active { transform: translateY(1px); }

/* ── legend ─────────────────────────────────────────────── */

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 5px 11px;
  padding: 13px 22px 16px;
  border-top: 1px solid var(--line);
  font-size: 9px;
  letter-spacing: 0.08em;
  color: var(--faint);
}

.legend span { display: inline-flex; align-items: center; gap: 5px; }

kbd {
  font: inherit;
  font-size: 8.5px;
  padding: 2px 4px;
  color: var(--dim);
  border: 1px solid var(--line-strong);
  letter-spacing: 0.06em;
}

/* ── hud ────────────────────────────────────────────────── */

.hud {
  position: absolute;
  top: 22px;
  right: 24px;
  display: grid;
  gap: 3px;
  text-align: right;
  z-index: 2;
  pointer-events: none;
  transition: opacity 400ms ease;
}

.hud-row { display: flex; justify-content: flex-end; gap: 10px; align-items: baseline; }

.hud-row span {
  font-size: 8.5px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--faint);
}

.hud-row b {
  font-weight: 400;
  font-size: 11.5px;
  font-variant-numeric: tabular-nums;
  color: var(--dim);
  min-width: 58px;
}

#hud-fps { color: var(--accent); }

/* ── misc chrome ────────────────────────────────────────── */

.panel-toggle {
  position: absolute;
  bottom: 22px;
  right: 24px;
  width: 34px;
  height: 34px;
  display: grid;
  align-content: center;
  justify-items: end;
  gap: 4px;
  padding: 0 8px;
  background: rgba(9, 11, 16, 0.6);
  border: 1px solid var(--line);
  cursor: pointer;
  z-index: 4;
  transition: border-color 200ms ease;
}

.panel-toggle span { display: block; height: 1px; background: var(--dim); transition: width 300ms cubic-bezier(0.16, 1, 0.3, 1); }
.panel-toggle span:nth-child(1) { width: 16px; }
.panel-toggle span:nth-child(2) { width: 10px; }
.panel-toggle span:nth-child(3) { width: 13px; }
.panel-toggle:hover { border-color: var(--accent); }
.panel-toggle:hover span { width: 16px; background: var(--accent); }

.brush-ring {
  position: fixed;
  left: 0;
  top: 0;
  border: 1px solid var(--accent);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  opacity: 0;
  z-index: 2;
  box-shadow: 0 0 16px -4px var(--accent), inset 0 0 16px -8px var(--accent);
  transition: opacity 200ms ease;
}

.brush-ring.visible { opacity: 0.5; }
.brush-ring.erasing { border-style: dashed; opacity: 0.75; }

.paused-mark {
  position: absolute;
  bottom: 26px;
  left: calc(var(--rail) + 28px);
  font-size: 9px;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: var(--accent);
  opacity: 0;
  transition: opacity 300ms ease, left 460ms cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: none;
  z-index: 2;
}

.shell[data-paused="true"] .paused-mark { opacity: 1; animation: blink 2.4s ease-in-out infinite; }
.shell.bare .paused-mark { left: 28px; }

@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0.35; } }

.boot {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  justify-items: center;
  gap: 22px;
  background: var(--ink);
  z-index: 10;
  transition: opacity 700ms ease, visibility 700ms;
}

.boot.gone { opacity: 0; visibility: hidden; }

.boot p {
  margin: 0;
  font-size: 9px;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: var(--faint);
}

.boot-ring {
  width: 46px;
  height: 46px;
  border: 1px solid var(--line-strong);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 1.4s cubic-bezier(0.6, 0.05, 0.4, 0.95) infinite;
  box-shadow: 0 0 26px -8px var(--accent);
}

@keyframes spin { to { transform: rotate(360deg); } }

.fatal {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  gap: 12px;
  padding: 40px;
  text-align: center;
  background: var(--ink);
  z-index: 11;
}

.fatal { place-content: center; justify-items: stretch; text-align: left; max-width: 760px; margin: 0 auto; }
.fatal h2 { margin: 0; font-family: var(--serif); font-weight: 400; font-size: 22px; color: #e9edf5; }
.fatal p { margin: 0; font-size: 11.5px; color: var(--dim); line-height: 1.65; }
.fatal-hint { color: var(--faint) !important; }
.fatal-hint a { color: var(--accent); }
.fatal code { color: var(--accent); }

.fatal-report { display: grid; grid-template-columns: auto 1fr; gap: 5px 18px; margin: 4px 0 0; font-size: 11px; }
.fatal-report dt { color: var(--faint); white-space: nowrap; }
.fatal-report dd { margin: 0; color: var(--text); }
.fatal-report dd.no { color: var(--accent); }
.fatal-report dd.yes { color: #6fc98a; }

.fatal-stack {
  margin: 0;
  padding: 12px 14px;
  max-height: 200px;
  overflow: auto;
  font-size: 10.5px;
  line-height: 1.55;
  color: var(--faint);
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--line);
  white-space: pre-wrap;
  word-break: break-word;
}
.fatal-stack:empty { display: none; }

@supports ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .panel {
    background: var(--panel);
    backdrop-filter: blur(22px) saturate(120%);
    -webkit-backdrop-filter: blur(22px) saturate(120%);
  }
}

@media (max-width: 720px) {
  :root { --rail: 100vw; }
  .panel { border-right: 0; }
  .hud { top: auto; bottom: 70px; right: 18px; }
  .paused-mark { left: 28px; }
}