:root {
  color-scheme: dark;
  --ink: #f7f2e7;
  --muted: #cfc6b4;
  --panel: rgba(12, 14, 18, 0.84);
  --panel-strong: rgba(8, 9, 12, 0.96);
  --brass: #f7b733;
  --teal: #20d6c7;
  --rose: #f05d7b;
  --line: rgba(255, 255, 255, 0.18);
  --shadow: 0 18px 60px rgba(0, 0, 0, 0.42);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(180deg, rgba(6, 7, 10, 0.92), rgba(14, 12, 16, 0.98)),
    #08090c;
}

button {
  font: inherit;
}

.app {
  min-height: 100vh;
  display: grid;
  grid-template-rows: auto auto auto auto;
  align-content: start;
  gap: clamp(10px, 1.4vw, 18px);
  padding: clamp(12px, 2vw, 24px);
}

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

.title-lockup {
  min-width: 0;
}

.title-lockup p {
  margin: 0 0 2px;
  color: var(--brass);
  font-size: clamp(0.68rem, 1.2vw, 0.78rem);
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.title-lockup h1 {
  margin: 0;
  font-size: clamp(1.55rem, 4vw, 3.8rem);
  line-height: 0.92;
  letter-spacing: 0;
}

.conductor-panel {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  flex-wrap: wrap;
}

.readout {
  min-width: 74px;
  min-height: 44px;
  display: grid;
  place-items: center;
  padding: 5px 12px 6px;
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.readout span {
  font-size: 1.25rem;
  font-weight: 900;
  line-height: 1;
}

.readout small {
  color: var(--muted);
  font-size: 0.66rem;
  font-weight: 700;
  text-transform: uppercase;
}

.control-button {
  min-height: 44px;
  border: 1px solid var(--line);
  color: var(--ink);
  background: var(--panel);
  padding: 0 14px;
  font-weight: 800;
  cursor: pointer;
  box-shadow: var(--shadow);
}

.control-button:hover,
.control-button:focus-visible {
  border-color: var(--teal);
  outline: none;
}

.control-button:active {
  transform: translateY(1px);
}

.control-button.danger {
  border-color: rgba(240, 93, 123, 0.56);
}

.stage-shell {
  min-width: 0;
  min-height: 0;
  display: grid;
  justify-items: center;
  align-items: start;
}

.stage {
  position: relative;
  width: min(100%, calc((100vh - 188px) * 1.7779));
  max-width: 1720px;
  aspect-ratio: 1672 / 941;
  overflow: hidden;
  background: #15110d;
  box-shadow: 0 28px 92px rgba(0, 0, 0, 0.52);
  --conduct-duration: 940ms;
  --conduct-left: -2px;
  --conduct-right: 2px;
  --conduct-bottom-left: -1px;
  --conduct-bottom-right: 1px;
  --conduct-high: -4px;
  --conduct-low: 8px;
  --conduct-rotate-left: -3deg;
  --conduct-rotate-right: 3deg;
  --conduct-rotate-low-left: 2deg;
  --conduct-rotate-low-right: -2deg;
}

.stage-art,
.players-layer,
.conductor-hand {
  position: absolute;
}

.stage-art {
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  user-select: none;
  -webkit-user-drag: none;
}

.players-layer {
  inset: 0;
  z-index: 4;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.conductor-hand {
  left: 64.2%;
  top: 35.5%;
  z-index: 3;
  width: 21.85%;
  height: auto;
  pointer-events: none;
  transform: translate(-50%, 0) rotate(-2deg);
  transform-origin: 62% 73%;
  user-select: none;
  will-change: transform;
  filter: drop-shadow(0 18px 18px rgba(0, 0, 0, 0.24));
  -webkit-user-drag: none;
}

.stage.is-conducting .conductor-hand {
  animation: conduct-hand var(--conduct-duration) cubic-bezier(0.42, 0, 0.24, 1) infinite;
}

@keyframes conduct-hand {
  0%,
  100% {
    transform: translate(calc(-50% + var(--conduct-left)), var(--conduct-high))
      rotate(var(--conduct-rotate-left));
  }

  25% {
    transform: translate(calc(-50% + var(--conduct-bottom-left)), var(--conduct-low))
      rotate(var(--conduct-rotate-low-left));
  }

  50% {
    transform: translate(calc(-50% + var(--conduct-right)), var(--conduct-high))
      rotate(var(--conduct-rotate-right));
  }

  75% {
    transform: translate(calc(-50% + var(--conduct-bottom-right)), var(--conduct-low))
      rotate(var(--conduct-rotate-low-right));
  }
}

@media (prefers-reduced-motion: reduce) {
  .stage.is-conducting .conductor-hand {
    animation: none;
    transform: translate(-50%, 0) rotate(-2deg);
  }
}

.player-hotspot {
  position: absolute;
  z-index: 2;
  left: var(--x);
  top: var(--y);
  width: var(--w);
  height: var(--h);
  padding: 0;
  border: 0;
  border-radius: 999px;
  color: transparent;
  background: transparent;
  transform: translate(-50%, -50%);
  pointer-events: auto;
  cursor: pointer;
  box-shadow: none;
  -webkit-tap-highlight-color: transparent;
}

.player-sprite {
  position: absolute;
  left: var(--sprite-x);
  top: var(--sprite-y);
  z-index: 1;
  width: var(--sprite-w);
  aspect-ratio: var(--sprite-aspect, 3 / 5);
  display: none;
  overflow: hidden;
  pointer-events: none;
  filter: drop-shadow(0 10px 10px rgba(0, 0, 0, 0.18));
}

.player-sprite::before {
  content: "";
  position: absolute;
  inset: 0;
  width: calc(var(--sprite-frames) * 100%);
  background-image: var(--sprite-image);
  background-position: 0 0;
  background-repeat: no-repeat;
  background-size: 100% 100%;
}

.player-sprite.is-active {
  display: block;
}

.player-sprite.is-active::before {
  animation: player-sprite-play 620ms linear infinite;
}

@keyframes player-sprite-play {
  0%,
  19.999% {
    transform: translateX(0);
  }

  20%,
  39.999% {
    transform: translateX(-20%);
  }

  40%,
  59.999% {
    transform: translateX(-40%);
  }

  60%,
  79.999% {
    transform: translateX(-60%);
  }

  80%,
  100% {
    transform: translateX(-80%);
  }
}

@media (prefers-reduced-motion: reduce) {
  .player-sprite.is-active::before {
    animation: none;
  }
}

.player-hotspot::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: clamp(23px, 2.75vw, 38px);
  height: clamp(23px, 2.75vw, 38px);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.32);
  box-shadow:
    0 2px 10px rgba(0, 0, 0, 0.22),
    inset 0 0 8px rgba(255, 255, 255, 0.22);
  transform: translate(-50%, -50%);
}

.player-hotspot:hover,
.player-hotspot:focus-visible {
  outline: none;
}

.player-hotspot:hover::before,
.player-hotspot:focus-visible::before {
  background: rgba(255, 255, 255, 0.48);
}

.player-hotspot.is-active {
  background: transparent;
}

.player-hotspot.is-active::before {
  background: rgba(32, 214, 199, 0.5);
  box-shadow:
    0 0 16px rgba(32, 214, 199, 0.58),
    inset 0 0 8px rgba(255, 255, 255, 0.22);
}

.orchestra-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(138px, 1fr));
  gap: 8px;
}

.strip-button {
  min-height: 58px;
  border: 1px solid var(--line);
  color: var(--ink);
  background: var(--panel);
  padding: 8px 10px;
  display: grid;
  align-content: center;
  gap: 3px;
  text-align: left;
  cursor: pointer;
}

.strip-button:hover,
.strip-button:focus-visible {
  border-color: var(--teal);
  outline: none;
}

.strip-button.is-active {
  border-color: rgba(32, 214, 199, 0.82);
  background: linear-gradient(135deg, rgba(32, 214, 199, 0.24), var(--panel-strong));
}

.strip-button strong {
  overflow: hidden;
  color: var(--ink);
  font-size: 0.82rem;
  line-height: 1.05;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.strip-button span {
  overflow: hidden;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 700;
  line-height: 1;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.backing-panel {
  display: grid;
  grid-template-columns: minmax(138px, 0.72fr) minmax(280px, 2.1fr) minmax(220px, 0.95fr);
  align-items: center;
  gap: 8px;
}

.backing-title,
.volume-control {
  min-height: 58px;
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.backing-title {
  display: grid;
  align-content: center;
  gap: 3px;
  padding: 8px 12px;
}

.backing-title span,
.volume-control span,
.volume-control output {
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 800;
  text-transform: uppercase;
}

.backing-title strong {
  overflow: hidden;
  color: var(--ink);
  font-size: 0.84rem;
  line-height: 1.1;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.backing-buttons {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.backing-button {
  min-height: 58px;
  border: 1px solid var(--line);
  color: var(--ink);
  background: var(--panel);
  padding: 8px 10px;
  display: grid;
  align-content: center;
  gap: 3px;
  text-align: left;
  cursor: pointer;
}

.backing-button:hover,
.backing-button:focus-visible {
  border-color: var(--brass);
  outline: none;
}

.backing-button.is-active {
  border-color: rgba(247, 183, 51, 0.86);
  background: linear-gradient(135deg, rgba(247, 183, 51, 0.22), var(--panel-strong));
}

.backing-button strong {
  overflow: hidden;
  color: var(--ink);
  font-size: 0.82rem;
  line-height: 1.05;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.backing-button span {
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 700;
  line-height: 1;
}

.volume-control {
  display: grid;
  grid-template-columns: auto minmax(88px, 1fr) 42px;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
}

.volume-control input {
  width: 100%;
  accent-color: var(--brass);
  cursor: pointer;
}

@media (max-width: 840px) {
  .app {
    grid-template-rows: auto auto auto auto;
    padding: 10px;
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .conductor-panel {
    width: 100%;
    justify-content: stretch;
  }

  .readout,
  .control-button {
    flex: 1 1 116px;
  }

  .stage {
    width: 100%;
  }

  .orchestra-strip {
    grid-template-columns: repeat(auto-fit, minmax(118px, 1fr));
  }

  .backing-panel {
    grid-template-columns: 1fr;
  }

  .backing-buttons {
    grid-template-columns: 1fr;
  }

  .player-hotspot::before {
    width: clamp(20px, 6.5vw, 30px);
    height: clamp(20px, 6.5vw, 30px);
  }
}