:root {
  color-scheme: dark;
  --bg: #12100e;
  --bg-raise: #1c1814;
  --bg-sunken: #0c0b0a;
  --line: rgba(243, 226, 198, 0.14);
  --ink: #f6efe4;
  --muted: #b4a394;
  --faint: #7d7166;
  --amber: #e39a45;
  --amber-2: #ffd7a8;
  --led: #9dce86;
  --danger: #e08a72;
  --serif: "Iowan Old Style", Palatino, "Palatino Linotype", Georgia, serif;
  --sans: "Avenir Next", "Segoe UI", "Helvetica Neue", sans-serif;
  --mono: "SF Mono", ui-monospace, "Cascadia Mono", monospace;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }

html, body { margin: 0; min-height: 100%; }

body {
  font-family: var(--sans);
  color: var(--ink);
  background:
    radial-gradient(1200px 500px at 10% -10%, rgba(227, 154, 69, 0.16), transparent 55%),
    radial-gradient(900px 400px at 100% 0%, rgba(157, 206, 134, 0.08), transparent 50%),
    var(--bg);
}

button, input, textarea { font: inherit; color: inherit; }

button { cursor: pointer; }

:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}

.app {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 48px;
}

.top {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: flex-end;
  margin-bottom: 22px;
}

.brand { display: flex; gap: 14px; align-items: center; }

.mark {
  width: 54px;
  height: 54px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background:
    linear-gradient(#2a2118, #1a1511);
  display: grid;
  place-items: center;
  box-shadow: inset 0 0 0 4px rgba(227, 154, 69, 0.08);
}

.mark svg { width: 32px; height: 32px; display: block; }

.eyebrow {
  margin: 0 0 2px;
  color: var(--amber-2);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 11px;
}

h1 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 560;
  font-size: 40px;
  letter-spacing: -0.03em;
}

.lede {
  margin: 8px 0 0;
  max-width: 460px;
  color: var(--muted);
  line-height: 1.45;
}

.model-card {
  min-width: 240px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(28, 24, 20, 0.8);
}

.model-card strong { display: block; font-size: 14px; }

.model-card p { margin: 4px 0 0; color: var(--muted); font-size: 13px; line-height: 1.4; }

.led {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--led);
  font-size: 12px;
  letter-spacing: 0.04em;
}

.led i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--led);
  box-shadow: 0 0 10px var(--led);
}

.layout {
  display: block;
}

.panel {
  background: rgba(28, 24, 20, 0.92);
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: var(--shadow);
}

.composer { padding: 16px; }

.field-label {
  display: block;
  margin: 2px 2px 8px;
  color: var(--faint);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

textarea {
  width: 100%;
  min-height: 112px;
  resize: vertical;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: var(--bg-sunken);
  padding: 14px 16px;
  line-height: 1.5;
  font-size: 18px;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-top: 12px;
}

.duration {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
  padding: 0 6px;
}

.duration input { width: 130px; accent-color: var(--amber); }

button.primary, button.ghost, button.tiny {
  border-radius: 999px;
  border: 1px solid transparent;
  padding: 10px 16px;
}

button.primary {
  background: var(--amber);
  color: #2a1c0d;
  font-weight: 700;
}

button.primary:disabled { opacity: 0.45; cursor: wait; }

button.ghost, button.tiny {
  background: transparent;
  border-color: var(--line);
  color: var(--ink);
}

button.tiny { padding: 7px 12px; font-size: 13px; }

.groups { margin-top: 16px; display: grid; gap: 12px; }

.groups h2 {
  margin: 0 0 8px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--faint);
}

.chips { display: flex; flex-wrap: wrap; gap: 8px; }

.chips button {
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #262019;
  color: var(--amber-2);
  padding: 7px 11px;
  font-size: 13px;
}

.chips button:hover, .chips button.active { border-color: rgba(227, 154, 69, 0.7); }

.stage { padding: 16px 16px 14px; display: flex; flex-direction: column; gap: 12px; }

.meta { margin: 0; color: var(--danger); font-size: 14px; }
.meta[hidden] { display: none; }

.adder { display: grid; gap: 6px; }

.fold {
  border-top: 1px solid var(--line);
}

.fold-btn {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  padding: 8px 2px;
  border: 0;
  background: transparent;
  color: var(--ink);
  font-size: 13px;
  font-weight: 650;
}

.fold-btn::after {
  content: "";
  width: 7px;
  height: 7px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: translateY(-2px) rotate(45deg);
}

.fold-btn[aria-expanded="true"]::after {
  transform: translateY(2px) rotate(225deg);
}

.fold-body { padding: 0 0 8px; }

.fold-body[hidden] { display: none; }

.type-picks { display: flex; flex-wrap: wrap; gap: 6px; }

.type-picks button {
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #262019;
  color: var(--ink);
  padding: 6px 10px;
  font-size: 13px;
}

.type-picks button:hover {
  border-color: rgba(227, 154, 69, 0.7);
}

.type-picks button[aria-pressed="true"] {
  background: var(--amber);
  border-color: transparent;
  color: #2a1c0d;
  font-weight: 700;
}

.layers { display: grid; gap: 8px; min-height: 32px; }

.layer {
  border-radius: 14px;
  padding: 10px 12px 8px;
  background: #2a231c;
  border: 1px solid var(--line);
  font-size: 13px;
}

.layer-head { display: flex; justify-content: space-between; align-items: center; gap: 8px; }

.layer-tools { display: flex; align-items: center; gap: 6px; }

.layer-more, .layer-copy, .layer-remove {
  border: 1px solid var(--line);
  background: transparent;
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 12px;
}

.layer-more, .layer-copy { color: var(--ink); }

.layer-more::after {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-left: 6px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: translateY(-1px) rotate(45deg);
}

.layer-more[aria-expanded="true"]::after {
  transform: translateY(2px) rotate(225deg);
}

.layer-remove { color: var(--danger); }

.layer-settings { margin-top: 8px; }

.layer-settings[hidden] { display: none; }

.knobs { display: grid; grid-template-columns: 1fr 1fr; gap: 4px 12px; }

.knobs label {
  display: grid;
  grid-template-columns: 72px 1fr 36px;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  font-size: 12px;
}

.knobs input { width: 100%; accent-color: var(--amber); }

.knobs em { font-style: normal; color: var(--faint); text-align: right; }

.lane-help {
  margin: 0;
  color: var(--faint);
  font-size: 12px;
}

.lane { margin-top: 8px; }

.lane-meta {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 4px;
  color: var(--faint);
  font-size: 11px;
}

.lane-track {
  position: relative;
  height: 30px;
  border-radius: 8px;
  background: #16130f;
  border: 1px solid var(--line);
  touch-action: none;
}

.lane-clip {
  position: absolute;
  top: 3px;
  bottom: 3px;
  display: flex;
  align-items: center;
  min-width: 16px;
  border-radius: 6px;
  background: #e39a45;
  color: #2a1c0d;
  cursor: grab;
  touch-action: none;
  user-select: none;
}

.lane-clip:active { cursor: grabbing; }

.lane-edge {
  width: 10px;
  align-self: stretch;
  flex: none;
  cursor: ew-resize;
}

.lane-edge::after {
  content: "";
  display: block;
  width: 2px;
  height: 12px;
  margin: 6px auto 0;
  border-radius: 1px;
  background: rgba(42, 28, 13, 0.55);
}

.lane-label {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-align: center;
  font-size: 11px;
  font-weight: 700;
  white-space: nowrap;
  pointer-events: none;
}

.layer b { font-weight: 650; }

.layer span { color: var(--faint); margin-left: 6px; }

.wave-wrap {
  position: relative;
  border-radius: 16px;
  background: var(--bg-sunken);
  border: 1px solid var(--line);
  overflow: hidden;
  min-height: 168px;
}

canvas { width: 100%; height: 168px; display: block; }

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

.volume { margin-left: auto; display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 13px; }

.volume input { width: 110px; accent-color: var(--amber); }

.history { display: flex; flex-wrap: wrap; gap: 6px; }

.history button {
  border: 0;
  background: transparent;
  color: var(--faint);
  padding: 0;
  font-size: 13px;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.foot {
  margin-top: 18px;
  color: var(--faint);
  font-size: 13px;
  line-height: 1.5;
}

.kbd {
  font-family: var(--mono);
  font-size: 12px;
  border: 1px solid var(--line);
  border-bottom-width: 2px;
  border-radius: 6px;
  padding: 1px 5px;
}

@media (max-width: 860px) {
  .top, .layout { display: block; }
  .model-card { margin-top: 14px; }
  h1 { font-size: 34px; }
  .volume { margin-left: 0; }
}