:root {
  color-scheme: dark;
  --ink: #111114;
  --paper: #fff8df;
  --hot: #ff3864;
  --lime: #c9ff35;
  --cyan: #20e6ff;
  --violet: #8b5cff;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: #171717;
  color: var(--paper);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

body {
  display: grid;
  place-items: center;
  padding: 18px;
}

.app {
  width: min(100%, 520px);
  display: grid;
  gap: 14px;
}

.stage-wrap {
  position: relative;
  overflow: hidden;
  border: 0;
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(255, 56, 100, 0.24), transparent 34%),
    linear-gradient(315deg, rgba(32, 230, 255, 0.22), transparent 38%), #252525;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.42);
  aspect-ratio: 3 / 4;
}

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

.hud {
  position: absolute;
  left: 12px;
  right: 12px;
  z-index: 4;
  display: grid;
  grid-template-columns: 1.3fr 0.85fr 0.9fr;
  gap: 8px;
  pointer-events: none;
}

.hud.top {
  top: 12px;
}

.hud > div,
.result {
  border: 3px solid var(--ink);
  background: rgba(255, 248, 223, 0.94);
  color: var(--ink);
  padding: 8px 10px;
  box-shadow: 5px 5px 0 var(--ink);
}

.label {
  display: block;
  color: #6d2d3b;
  font-size: 11px;
  line-height: 1;
  font-weight: 900;
  text-transform: uppercase;
}

strong {
  display: block;
  margin-top: 3px;
  font-size: clamp(14px, 3.4vw, 18px);
  line-height: 1.05;
}

.meter {
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 16px;
  height: 14px;
  z-index: 4;
  overflow: hidden;
  border: 3px solid var(--ink);
  background: rgba(17, 17, 20, 0.75);
}

.meter span {
  display: block;
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--lime), var(--cyan), var(--hot));
  transition: width 80ms linear;
}

.result {
  position: absolute;
  left: 20px;
  right: 20px;
  bottom: 48px;
  z-index: 5;
  text-align: center;
}

.result h1 {
  margin: 5px 0 4px;
  font-size: clamp(30px, 9vw, 54px);
  line-height: 0.95;
}

.result p {
  margin: 0;
  font-weight: 800;
}

.hidden {
  display: none;
}

.controls {
  display: grid;
  grid-template-columns: 1fr 1fr 0.72fr;
  gap: 10px;
}

button {
  min-height: 48px;
  border: 3px solid var(--ink);
  border-radius: 8px;
  background: var(--paper);
  color: var(--ink);
  font: inherit;
  font-weight: 950;
  cursor: pointer;
  box-shadow: 4px 4px 0 var(--ink);
}

button:active {
  translate: 3px 3px;
  box-shadow: 1px 1px 0 var(--ink);
}

button.primary {
  background: var(--lime);
}

#triggerBtn {
  background: var(--cyan);
}

#resetBtn {
  background: var(--hot);
  color: white;
}

#camera {
  position: fixed;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

@media (max-width: 430px) {
  body {
    padding: 10px;
  }

  .hud {
    left: 8px;
    right: 8px;
    gap: 6px;
  }

  .hud > div {
    padding: 7px 8px;
  }

  .controls {
    grid-template-columns: 1fr;
  }
}