:root {
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #090b0f;
  color: #f8f3e9;
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
}

body {
  background:
    radial-gradient(circle at 50% 110%, rgba(232, 97, 45, 0.35), transparent 34%),
    linear-gradient(180deg, #0b1018 0%, #11121a 48%, #17110e 100%);
}

.app-shell {
  position: relative;
  width: 100vw;
  height: 100vh;
  min-height: 420px;
}

#scene {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  touch-action: none;
}

.control-panel {
  position: fixed;
  top: clamp(14px, 3vw, 28px);
  left: clamp(14px, 3vw, 28px);
  width: min(340px, calc(100vw - 28px));
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  background: rgba(10, 12, 17, 0.88);
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.34);
  contain: layout paint;
  opacity: 1;
  transform: translateY(0);
  transition: opacity 420ms ease, transform 420ms ease;
}

body.controls-idle .control-panel {
  opacity: 0.08;
  transform: translateY(-10px);
}

body.controls-idle .control-panel:hover,
.control-panel:focus-within {
  opacity: 1;
  transform: translateY(0);
}

.brand {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 18px;
}

.brand p {
  margin: 0;
  font-size: clamp(1.3rem, 6vw, 2.2rem);
  line-height: 0.9;
  font-weight: 800;
  letter-spacing: 0;
}

.brand span {
  max-width: 132px;
  color: #acd7df;
  font-size: 0.72rem;
  line-height: 1.2;
  text-align: right;
  text-transform: uppercase;
}

.meters {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 18px;
}

.meters div {
  min-height: 62px;
  padding: 10px 12px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.055);
}

.meters span {
  display: block;
  color: #c6cad2;
  font-size: 0.72rem;
  text-transform: uppercase;
}

.meters strong {
  display: block;
  margin-top: 5px;
  color: #fff7d0;
  font-size: 1.45rem;
  font-variant-numeric: tabular-nums;
}

.slider-row {
  display: grid;
  grid-template-columns: 54px 1fr;
  align-items: center;
  gap: 12px;
  min-height: 34px;
  margin-top: 12px;
  color: #f5eadb;
  font-size: 0.82rem;
  text-transform: uppercase;
}

input[type="range"] {
  width: 100%;
  accent-color: #f78243;
}

.toggles,
.button-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 16px;
}

.toggles label {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  color: #dbe9ec;
  font-size: 0.82rem;
}

.toggles input {
  accent-color: #67c5d8;
}

button {
  min-height: 40px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.1);
  color: #fff9eb;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

button:hover,
button:focus-visible {
  outline: none;
  border-color: rgba(255, 223, 165, 0.68);
  background: rgba(255, 255, 255, 0.17);
}

.gesture-hint {
  position: fixed;
  right: clamp(14px, 3vw, 28px);
  bottom: clamp(14px, 3vw, 28px);
  max-width: min(390px, calc(100vw - 28px));
  padding: 10px 12px;
  border-radius: 6px;
  background: rgba(8, 10, 14, 0.78);
  color: #d4e9ec;
  font-size: 0.82rem;
  line-height: 1.4;
  contain: layout paint;
  opacity: 1;
  transition: opacity 420ms ease, transform 420ms ease;
}

body.controls-idle .gesture-hint {
  opacity: 0;
  transform: translateY(8px);
  pointer-events: none;
}

@media (max-width: 680px) {
  .control-panel {
    top: auto;
    bottom: 14px;
    padding: 14px;
  }

  .brand {
    margin-bottom: 12px;
  }

  .meters {
    margin-bottom: 12px;
  }

  .gesture-hint {
    top: 14px;
    right: 14px;
    bottom: auto;
    max-width: calc(100vw - 28px);
  }
}