/* THEMER · forge UI ------------------------------------------------------- */

:root {
  /* surfaces — tinted toward FL orange (oklch h≈55) at very low chroma */
  --bg-0: oklch(14% 0.008 55);
  --bg-1: oklch(17% 0.010 55);
  --bg-2: oklch(20% 0.012 55);
  --bg-3: oklch(24% 0.014 55);
  --line:  oklch(28% 0.014 55);
  --line-2: oklch(34% 0.016 55);

  --ink-0: oklch(96% 0.012 75);
  --ink-1: oklch(82% 0.012 75);
  --ink-2: oklch(64% 0.014 75);
  --ink-3: oklch(48% 0.016 75);

  /* product accent — warm amber, never neon */
  --acc:    oklch(74% 0.18 58);
  --acc-2:  oklch(68% 0.18 38);
  --acc-ink: oklch(18% 0.04 58);

  /* type */
  --f-sans: "Bricolage Grotesque", system-ui, sans-serif;
  --f-mono: "Departure Mono", ui-monospace, "JetBrains Mono", monospace;

  /* rhythm */
  --r-1: 4px;  --r-2: 8px;  --r-3: 12px;  --r-4: 16px;
  --r-5: 24px; --r-6: 32px; --r-7: 48px;

  /* live theme variables — overwritten by app.js */
  --fl-bg:        #1a1c22;
  --fl-bg-elev:   #22252d;
  --fl-bg-elev2:  #2a2e37;
  --fl-text:      #e6e6ea;
  --fl-text-mute: #9598a3;
  --fl-selected:  #7c5cff;
  --fl-highlight: #ff9356;
  --fl-grid-pr:   #1d1f25;
  --fl-grid-pl:   #1d1f25;
  --fl-grid-ee:   #1d1f25;
  --fl-meter-0:   #2c8a48;
  --fl-meter-1:   #4cb35a;
  --fl-meter-2:   #8fcf3f;
  --fl-meter-3:   #d3c63a;
  --fl-meter-4:   #e08a35;
  --fl-meter-5:   #d6453d;
  --fl-wave-0:    #7c5cff;
  --fl-wave-1:    #9b7bff;
  --fl-wave-2:    #b89bff;
  --fl-wave-3:    #d8c0ff;
  --fl-wave-4:    #ff9356;
  --fl-wave-5:    #ff5e92;

  --fl-bg-image: none;
  --fl-bg-opacity: 0.35;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

body {
  font-family: var(--f-sans);
  font-feature-settings: "ss01", "ss02", "cv01";
  font-weight: 400;
  background: var(--bg-0);
  color: var(--ink-1);
  letter-spacing: 0.005em;
  min-height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr auto;
  overflow: hidden;
}

button { font: inherit; color: inherit; cursor: pointer; }
input, select { font: inherit; color: inherit; }

/* ---- TOPBAR -------------------------------------------------------------- */

.topbar {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 14px 22px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(to bottom, var(--bg-1), var(--bg-0));
  gap: 24px;
}

.brand { display: flex; align-items: baseline; gap: 12px; }
.brand-mark {
  width: 22px; height: 22px;
  display: inline-grid; place-items: center;
  color: var(--acc);
  transform: translateY(3px);
}
.brand-mark svg { width: 22px; height: 22px; }
.brand-name {
  font-family: var(--f-mono);
  font-size: 16px;
  letter-spacing: 0.18em;
  color: var(--ink-0);
}
.brand-sub {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--ink-3);
  text-transform: uppercase;
}

.topbar-mid { display: flex; justify-content: center; }
.topbar-end { display: flex; justify-content: flex-end; align-items: center; gap: 16px; }

.field { display: grid; gap: 4px; }
.field-label {
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.15em;
  color: var(--ink-3);
  text-transform: uppercase;
}
.name-field input {
  width: 320px;
  padding: 10px 14px;
  background: var(--bg-1);
  border: 1px solid var(--line);
  border-radius: var(--r-2);
  color: var(--ink-0);
  font-family: var(--f-mono);
  font-size: 14px;
  letter-spacing: 0.04em;
  outline: none;
  transition: border-color 220ms cubic-bezier(.2,.8,.2,1), background 220ms;
}
.name-field input:focus {
  border-color: var(--acc);
  background: var(--bg-2);
}

.toggle { display: inline-flex; align-items: center; gap: 10px; cursor: pointer; user-select: none; }
.toggle input { position: absolute; opacity: 0; pointer-events: none; }
.toggle-track {
  width: 38px; height: 20px;
  background: var(--bg-3);
  border-radius: 999px;
  position: relative;
  border: 1px solid var(--line-2);
  transition: background 220ms;
}
.toggle-thumb {
  position: absolute;
  top: 2px; left: 2px;
  width: 14px; height: 14px;
  border-radius: 999px;
  background: var(--ink-2);
  transition: transform 220ms cubic-bezier(.2,.8,.2,1), background 220ms;
}
.toggle input:checked ~ .toggle-track { background: var(--acc); }
.toggle input:checked ~ .toggle-track .toggle-thumb { transform: translateX(18px); background: var(--acc-ink); }
.toggle-label {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--ink-2);
  text-transform: uppercase;
}

/* ---- BUTTONS ------------------------------------------------------------- */

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 14px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--r-2);
  color: var(--ink-1);
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  transition: background 180ms, border-color 180ms, color 180ms, transform 180ms;
}
.btn:hover { background: var(--bg-3); border-color: var(--line-2); color: var(--ink-0); }
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: var(--acc);
  border-color: var(--acc);
  color: var(--acc-ink);
  font-weight: 700;
}
.btn-primary:hover { background: var(--acc-2); border-color: var(--acc-2); color: var(--acc-ink); }
.btn-ghost { background: transparent; }
.btn-block { width: 100%; justify-content: center; }

/* ---- SHELL --------------------------------------------------------------- */

.shell {
  display: grid;
  grid-template-columns: 280px 1fr 320px;
  gap: 0;
  min-height: 0;
  overflow: hidden;
}

.rail {
  background: var(--bg-0);
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--line-2) transparent;
}
.rail-left  { border-right: 1px solid var(--line); }
.rail-right { border-left:  1px solid var(--line); }

.panel { padding: 18px 18px 22px; border-bottom: 1px solid var(--line); }
.panel-mute { background: var(--bg-1); }
.panel-h {
  margin: 0 0 14px;
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--ink-3);
  text-transform: uppercase;
  display: flex; align-items: center; gap: 8px;
}
.panel-h::after {
  content: ""; flex: 1; height: 1px;
  background: linear-gradient(to right, var(--line), transparent);
}

/* ---- PRESETS ------------------------------------------------------------- */

.presets { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }
.preset {
  position: relative;
  padding: 10px;
  background: var(--bg-1);
  border: 1px solid var(--line);
  border-radius: var(--r-2);
  text-align: left;
  display: grid;
  gap: 8px;
  transition: border-color 180ms, transform 180ms;
}
.preset:hover { border-color: var(--acc); transform: translateY(-1px); }
.preset.active { border-color: var(--acc); }
.preset.active::before {
  content: ""; position: absolute; inset: -1px;
  border: 1px solid var(--acc);
  border-radius: var(--r-2);
  pointer-events: none;
}
.preset-swatch {
  display: flex; height: 18px; border-radius: 3px; overflow: hidden;
}
.preset-swatch span { flex: 1; }
.preset-name {
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--ink-1);
  text-transform: uppercase;
}

/* ---- HARMONY ------------------------------------------------------------- */

.harmony { display: grid; gap: 14px; }
.hue-pick { display: grid; gap: 6px; }
.hue-row { display: flex; gap: 8px; }
.hue-row input[type="color"] {
  width: 44px; height: 36px; padding: 2px;
  background: var(--bg-1);
  border: 1px solid var(--line);
  border-radius: var(--r-2);
  cursor: pointer;
}
.hue-row input[type="text"] {
  flex: 1;
  padding: 8px 12px;
  background: var(--bg-1);
  border: 1px solid var(--line);
  border-radius: var(--r-2);
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  outline: none;
  text-transform: uppercase;
}
.hue-row input[type="text"]:focus { border-color: var(--acc); }

.scheme-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; }
.scheme {
  padding: 8px 6px;
  background: var(--bg-1);
  border: 1px solid var(--line);
  border-radius: var(--r-1);
  font-family: var(--f-mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  color: var(--ink-2);
  text-transform: uppercase;
  transition: all 180ms;
}
.scheme:hover { color: var(--ink-0); border-color: var(--line-2); }
.scheme.active {
  background: var(--acc);
  border-color: var(--acc);
  color: var(--acc-ink);
}

.harmony-out {
  display: flex; height: 32px;
  border-radius: var(--r-1);
  overflow: hidden;
  border: 1px solid var(--line);
}
.harmony-out span { flex: 1; }

.harmony-actions { display: grid; gap: 6px; }
.hint {
  margin: 0;
  font-family: var(--f-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  color: var(--ink-3);
  text-transform: uppercase;
  text-align: center;
}

/* ---- BACKGROUND DROP ----------------------------------------------------- */

.bg-drop {
  background: var(--bg-1);
  border: 1px dashed var(--line-2);
  border-radius: var(--r-2);
  padding: 14px;
  cursor: pointer;
  transition: border-color 180ms, background 180ms;
}
.bg-drop.dragging { border-color: var(--acc); background: var(--bg-2); }
.bg-drop-inner { display: grid; gap: 10px; }
.bg-thumb {
  width: 100%; aspect-ratio: 16/10;
  background: var(--bg-0);
  border-radius: var(--r-1);
  display: grid; place-items: center;
  background-size: cover; background-position: center;
  border: 1px solid var(--line);
  overflow: hidden;
  position: relative;
}
.bg-empty {
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--ink-3);
  text-transform: uppercase;
}
.bg-meta {
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--ink-3);
  text-transform: uppercase;
  text-align: center;
}
.bg-actions { display: flex; gap: 6px; }
.bg-actions .btn { flex: 1; padding: 8px 10px; }

/* ---- SLIDERS ------------------------------------------------------------- */

.sliders { display: grid; gap: 14px; }
.slider { display: grid; gap: 6px; }
.slider-l {
  display: flex; justify-content: space-between;
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--ink-2);
  text-transform: uppercase;
}
.slider-l em {
  font-style: normal;
  color: var(--ink-0);
  font-variant-numeric: tabular-nums;
}
.slider input[type="range"] {
  -webkit-appearance: none; appearance: none;
  width: 100%; height: 4px;
  background: var(--bg-3);
  border-radius: 999px;
  outline: none;
}
.slider input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px; height: 14px;
  background: var(--acc); border-radius: 50%;
  cursor: pointer;
  border: 2px solid var(--bg-0);
  box-shadow: 0 0 0 1px var(--acc);
}
.slider input[type="range"]::-moz-range-thumb {
  width: 14px; height: 14px;
  background: var(--acc); border-radius: 50%;
  cursor: pointer;
  border: 2px solid var(--bg-0);
  box-shadow: 0 0 0 1px var(--acc);
}

/* ---- KEY GRID (right rail swatches) -------------------------------------- */

.kgrid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }
.kgrid-tight { grid-template-columns: repeat(3, 1fr); gap: 6px; }
.k {
  display: grid;
  grid-template-columns: 24px 1fr;
  align-items: center;
  gap: 8px;
  padding: 6px;
  background: var(--bg-1);
  border: 1px solid var(--line);
  border-radius: var(--r-1);
  cursor: pointer;
  position: relative;
}
.k:hover { border-color: var(--line-2); }
.k-swatch {
  width: 24px; height: 24px;
  border-radius: 3px;
  border: 1px solid rgba(0,0,0,0.4);
  position: relative;
}
.k-swatch input[type="color"] {
  position: absolute; inset: 0;
  opacity: 0; cursor: pointer;
}
.k-meta { display: grid; gap: 2px; min-width: 0; }
.k-name {
  font-family: var(--f-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  color: var(--ink-2);
  text-transform: uppercase;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.k-hex {
  font-family: var(--f-mono);
  font-size: 9px;
  color: var(--ink-3);
  letter-spacing: 0.04em;
}
.kgrid-tight .k {
  grid-template-columns: 1fr;
  justify-items: center;
  gap: 4px;
}
.kgrid-tight .k-swatch { width: 100%; height: 22px; }
.kgrid-tight .k-meta { text-align: center; gap: 1px; }
.kgrid-tight .k-name { font-size: 8px; }
.kgrid-tight .k-hex { display: none; }

/* ---- STAGE / FL PREVIEW -------------------------------------------------- */

.stage {
  background: var(--bg-1);
  display: flex; flex-direction: column;
  min-width: 0; min-height: 0;
}

.stage-bar {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--line);
  background: var(--bg-0);
}
.stage-dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--bg-3);
}
.stage-dot:nth-child(1) { background: oklch(60% 0.16 25); }
.stage-dot:nth-child(2) { background: oklch(80% 0.16 90); }
.stage-dot:nth-child(3) { background: oklch(70% 0.16 145); }
.stage-title {
  margin-left: 12px;
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  color: var(--ink-3);
  text-transform: uppercase;
}
.stage-spacer { flex: 1; }
.stage-meter {
  font-family: var(--f-mono);
  font-size: 11px;
  color: var(--acc);
  letter-spacing: 0.12em;
  animation: pulse 1.6s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 0.5; }
  50%      { opacity: 1; }
}

.fl {
  flex: 1;
  background: var(--fl-bg);
  color: var(--fl-text);
  position: relative;
  overflow: hidden;
  display: flex; flex-direction: column;
  font-family: "Inter", system-ui, sans-serif;
  isolation: isolate;
  filter:
    hue-rotate(var(--fl-tint-h, 0deg))
    saturate(var(--fl-tint-s, 1))
    brightness(var(--fl-tint-b, 1));
  transition: filter 200ms ease;
}
.fl-bg {
  position: absolute; inset: 0;
  background-image: var(--fl-bg-image);
  background-size: cover; background-position: center;
  opacity: var(--fl-bg-opacity);
  z-index: 0;
  pointer-events: none;
}

.fl-chrome {
  position: relative; z-index: 1;
  background: color-mix(in oklch, var(--fl-bg), white 6%);
  border-bottom: 1px solid color-mix(in oklch, var(--fl-bg), white 12%);
}
.fl-menu {
  display: flex; gap: 14px;
  padding: 6px 14px;
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: color-mix(in oklch, var(--fl-text), transparent 35%);
}
.fl-menu span { transition: color 140ms; }
.fl-menu span:hover { color: var(--fl-text); }

.fl-transport {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 14px;
  border-top: 1px solid color-mix(in oklch, var(--fl-bg), white 8%);
  background: color-mix(in oklch, var(--fl-bg), black 8%);
}
.fl-tbtn {
  width: 30px; height: 24px;
  background: color-mix(in oklch, var(--fl-bg), white 14%);
  border: 1px solid color-mix(in oklch, var(--fl-bg), white 22%);
  border-radius: 3px;
  color: var(--fl-text);
  display: grid; place-items: center;
  padding: 0;
}
.fl-tbtn svg { width: 12px; height: 12px; }
.fl-tbtn.rec { color: var(--fl-meter-5); }
.fl-display {
  display: inline-flex; align-items: baseline; gap: 6px;
  margin-left: 8px;
  padding: 4px 10px;
  background: color-mix(in oklch, var(--fl-bg), black 18%);
  border: 1px solid color-mix(in oklch, var(--fl-bg), white 10%);
  border-radius: 3px;
  font-family: var(--f-mono);
  font-size: 11px;
  color: var(--fl-highlight);
  letter-spacing: 0.06em;
}
.fl-display span {
  font-size: 8px;
  color: color-mix(in oklch, var(--fl-text), transparent 55%);
  letter-spacing: 0.14em;
}
.fl-display em { font-style: normal; }
.fl-display-pat { color: var(--fl-text); }
.fl-display-pat em { color: var(--fl-text); }

/* fl grid layout */
.fl-grid {
  position: relative; z-index: 1;
  flex: 1;
  display: grid;
  grid-template-columns: 1.1fr 1.4fr;
  grid-template-rows: 1fr 1fr;
  gap: 1px;
  background: color-mix(in oklch, var(--fl-bg), white 6%);
  min-height: 0;
}
.fl-pane {
  background: color-mix(in oklch, var(--fl-bg), black 4%);
  display: flex; flex-direction: column;
  min-height: 0; min-width: 0;
  overflow: hidden;
}
.fl-pane-h {
  margin: 0;
  padding: 6px 10px;
  font-family: var(--f-mono);
  font-size: 9px;
  letter-spacing: 0.18em;
  color: color-mix(in oklch, var(--fl-text), transparent 45%);
  text-transform: uppercase;
  background: color-mix(in oklch, var(--fl-bg), white 4%);
  border-bottom: 1px solid color-mix(in oklch, var(--fl-bg), white 8%);
}

/* channel rack */
.fl-rack { grid-column: 1; grid-row: 1; }
.rack-rows {
  flex: 1;
  padding: 8px;
  display: grid; gap: 4px;
  align-content: start;
  min-height: 0;
  overflow: hidden;
}
.rack-row {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 6px;
  align-items: center;
}
.rack-name {
  font-size: 11px;
  padding: 4px 8px;
  background: color-mix(in oklch, var(--fl-bg), white 8%);
  border-radius: 3px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  border-left: 3px solid var(--rack-clr, var(--fl-selected));
}
.rack-steps {
  display: grid;
  grid-template-columns: repeat(16, 1fr);
  gap: 2px;
  height: 20px;
}
.rack-step {
  background: color-mix(in oklch, var(--fl-bg), white 6%);
  border-radius: 2px;
  transition: background 220ms;
}
.rack-step.on {
  background: var(--rack-clr, var(--fl-selected));
  box-shadow: 0 0 8px color-mix(in oklch, var(--rack-clr, var(--fl-selected)), transparent 60%);
}
.rack-step.beat { background: color-mix(in oklch, var(--fl-bg), white 12%); }
.rack-step.on.beat { background: var(--rack-clr, var(--fl-selected)); }

/* piano roll */
.fl-pr { grid-column: 1; grid-row: 2; }
.pr-body { flex: 1; display: grid; grid-template-columns: 28px 1fr; min-height: 0; }
.pr-keys {
  display: grid;
  grid-template-rows: repeat(8, 1fr);
  background: color-mix(in oklch, var(--fl-bg), white 6%);
  border-right: 1px solid color-mix(in oklch, var(--fl-bg), white 10%);
}
.pr-keys span {
  display: grid; place-items: center;
  font-family: var(--f-mono);
  font-size: 8px;
  color: color-mix(in oklch, var(--fl-text), transparent 50%);
  border-bottom: 1px solid color-mix(in oklch, var(--fl-bg), white 6%);
}
.pr-keys span:nth-child(2n) { background: color-mix(in oklch, var(--fl-bg), black 6%); color: color-mix(in oklch, var(--fl-text), transparent 70%); }
.pr-grid {
  position: relative;
  background: var(--fl-grid-pr);
  background-image:
    linear-gradient(to right, color-mix(in oklch, var(--fl-grid-pr), white 12%) 1px, transparent 1px),
    linear-gradient(to right, color-mix(in oklch, var(--fl-grid-pr), white 6%) 1px, transparent 1px),
    linear-gradient(to bottom, color-mix(in oklch, var(--fl-grid-pr), white 8%) 1px, transparent 1px);
  background-size: 25% 100%, 6.25% 100%, 100% 12.5%;
}
.pr-note {
  position: absolute;
  height: calc(100%/8 - 2px);
  background: var(--fl-selected);
  border-radius: 2px;
  border-left: 2px solid color-mix(in oklch, var(--fl-selected), white 30%);
  box-shadow: 0 1px 0 color-mix(in oklch, var(--fl-bg), black 30%);
}

/* playlist */
.fl-pl { grid-column: 2; grid-row: 1; }
.pl-body {
  flex: 1;
  background: var(--fl-grid-pl);
  background-image:
    linear-gradient(to right, color-mix(in oklch, var(--fl-grid-pl), white 10%) 1px, transparent 1px),
    linear-gradient(to right, color-mix(in oklch, var(--fl-grid-pl), white 5%) 1px, transparent 1px),
    linear-gradient(to bottom, color-mix(in oklch, var(--fl-grid-pl), white 8%) 1px, transparent 1px);
  background-size: 25% 100%, 6.25% 100%, 100% 16.66%;
  position: relative;
  padding: 4px;
  display: grid;
  grid-template-rows: repeat(6, 1fr);
  gap: 2px;
}
.pl-track { position: relative; height: 100%; }
.pl-clip {
  position: absolute;
  top: 2px; bottom: 2px;
  background: var(--clip-clr, var(--fl-wave-0));
  border-radius: 3px;
  border-top: 1px solid color-mix(in oklch, var(--clip-clr, var(--fl-wave-0)), white 25%);
  display: flex; align-items: center;
  padding: 0 6px;
  font-family: var(--f-mono);
  font-size: 8px;
  letter-spacing: 0.1em;
  color: color-mix(in oklch, var(--clip-clr, var(--fl-wave-0)), black 55%);
  text-transform: uppercase;
  overflow: hidden;
  box-shadow: 0 1px 0 color-mix(in oklch, var(--fl-bg), black 30%);
}
.pl-clip::after {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(to right,
      transparent 0%,
      color-mix(in oklch, var(--clip-clr, var(--fl-wave-0)), black 30%) 30%,
      color-mix(in oklch, var(--clip-clr, var(--fl-wave-0)), white 25%) 50%,
      color-mix(in oklch, var(--clip-clr, var(--fl-wave-0)), black 30%) 70%,
      transparent 100%);
  opacity: 0.55;
  pointer-events: none;
}

/* mixer */
.fl-mix { grid-column: 2; grid-row: 2; }
.mix-strips {
  flex: 1;
  display: flex;
  padding: 8px;
  gap: 4px;
  overflow: hidden;
  align-items: stretch;
}
.mix-strip {
  flex: 1;
  display: grid;
  grid-template-rows: auto 1fr auto auto;
  gap: 4px;
  background: color-mix(in oklch, var(--fl-bg), white 4%);
  border: 1px solid color-mix(in oklch, var(--fl-bg), white 8%);
  border-radius: 3px;
  padding: 4px;
  min-width: 0;
}
.mix-label {
  font-family: var(--f-mono);
  font-size: 8px;
  letter-spacing: 0.1em;
  color: color-mix(in oklch, var(--fl-text), transparent 35%);
  text-transform: uppercase;
  text-align: center;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.mix-fader {
  position: relative;
  display: grid; grid-template-columns: 1fr auto;
  gap: 3px;
  min-height: 0;
}
.fader-track {
  width: 4px;
  background: color-mix(in oklch, var(--fl-bg), black 12%);
  border-radius: 2px;
  margin: 0 auto;
  position: relative;
  border: 1px solid color-mix(in oklch, var(--fl-bg), white 8%);
}
.fader-thumb {
  position: absolute;
  left: -5px; right: -5px;
  height: 12px;
  background: color-mix(in oklch, var(--fl-bg), white 28%);
  border-top: 1px solid color-mix(in oklch, var(--fl-bg), white 38%);
  border-bottom: 1px solid color-mix(in oklch, var(--fl-bg), black 25%);
  border-radius: 2px;
}
.fader-thumb::before {
  content: ""; position: absolute;
  left: 0; right: 0;
  top: 50%; height: 1px;
  background: var(--fl-highlight);
}
.meter-track {
  width: 8px;
  background: color-mix(in oklch, var(--fl-bg), black 18%);
  border: 1px solid color-mix(in oklch, var(--fl-bg), white 8%);
  border-radius: 2px;
  overflow: hidden;
  position: relative;
}
.meter-fill {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  background: linear-gradient(to top,
    var(--fl-meter-0) 0%,
    var(--fl-meter-1) 20%,
    var(--fl-meter-2) 40%,
    var(--fl-meter-3) 65%,
    var(--fl-meter-4) 82%,
    var(--fl-meter-5) 100%);
  transition: height 240ms ease-out;
}
.mix-knob {
  width: 16px; height: 16px; margin: 0 auto;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 25%, color-mix(in oklch, var(--fl-bg), white 28%), color-mix(in oklch, var(--fl-bg), black 12%));
  border: 1px solid color-mix(in oklch, var(--fl-bg), black 18%);
  position: relative;
}
.mix-knob::after {
  content: ""; position: absolute;
  left: 50%; top: 1px;
  width: 1px; height: 5px;
  background: var(--fl-highlight);
  transform-origin: 50% 7px;
  transform: translateX(-50%) rotate(45deg);
}
.mix-wave {
  height: 14px;
  border-radius: 2px;
  background: linear-gradient(to right,
    var(--fl-wave-0),
    var(--fl-wave-1),
    var(--fl-wave-2),
    var(--fl-wave-3),
    var(--fl-wave-4),
    var(--fl-wave-5));
  opacity: 0.85;
}

/* ---- FOOTER -------------------------------------------------------------- */

.footstrip {
  border-top: 1px solid var(--line);
  background: var(--bg-1);
  padding: 10px 22px;
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  color: var(--ink-3);
  text-transform: lowercase;
  text-align: center;
}
.footstrip code {
  font-family: var(--f-mono);
  color: var(--ink-1);
  background: var(--bg-2);
  padding: 1px 6px;
  border-radius: 3px;
}

/* ---- RESPONSIVE ---------------------------------------------------------- */

/* ---- TOAST --------------------------------------------------------------- */

.toast {
  position: fixed;
  bottom: 56px; left: 50%;
  transform: translate(-50%, 24px);
  background: var(--ink-0);
  color: var(--bg-0);
  padding: 10px 18px;
  border-radius: 999px;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0;
  pointer-events: none;
  z-index: 100;
  box-shadow: 0 12px 40px -12px rgba(0,0,0,0.6);
  transition: transform 320ms cubic-bezier(.2,.8,.2,1), opacity 220ms;
}
.toast.show {
  transform: translate(-50%, 0);
  opacity: 1;
}

/* lightmode preview override */
.fl.is-light {
  --fl-bg: oklch(96% 0.005 75);
}

@media (max-width: 1280px) {
  .shell { grid-template-columns: 240px 1fr 280px; }
  .name-field input { width: 240px; }
}
@media (max-width: 1024px) {
  body { overflow: auto; grid-template-rows: auto auto auto auto; }
  .shell { grid-template-columns: 1fr; }
  .rail { max-height: none; border: none; border-bottom: 1px solid var(--line); }
  .stage { min-height: 70vh; }
  .topbar { grid-template-columns: 1fr 1fr; }
  .topbar-mid { grid-column: 1 / -1; order: 2; justify-content: stretch; }
  .name-field, .name-field input { width: 100%; }
}