:root {
  color-scheme: light;
  --background: #f7faf9;
  --stage: #e8f4f2;
  --text: #2e383b;
  --muted: #667378;
  --accent: #087a93;
  --accent-strong: #056172;
  --control: #f7f1e6;
  --control-active: #087a93;
  --line: #9dc7bd;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--background);
  color: var(--text);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    linear-gradient(180deg, rgba(8, 122, 147, 0.08), transparent 32%),
    var(--background);
}

button,
input {
  font: inherit;
}

.app-shell {
  display: grid;
  grid-template-rows: auto minmax(260px, 1fr) auto;
  width: min(100%, 720px);
  min-height: 100vh;
  margin: 0 auto;
  background: rgba(255, 255, 255, 0.72);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px;
}

h1 {
  margin: 0;
  font-size: 1.55rem;
  line-height: 1.1;
  letter-spacing: 0;
}

p {
  margin: 4px 0 0;
  color: var(--muted);
  line-height: 1.4;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 32px;
  padding: 0 12px;
  border: 1px solid rgba(8, 122, 147, 0.18);
  border-radius: 999px;
  color: var(--accent-strong);
  font-size: 0.85rem;
  font-weight: 700;
  background: rgba(255, 255, 255, 0.74);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: #18a765;
}

.stage {
  position: relative;
  display: grid;
  place-items: center;
  overflow: hidden;
  min-height: 360px;
  background: var(--stage);
}

.sprite-slot {
  position: relative;
  z-index: 1;
  width: 192px;
  height: 208px;
  will-change: transform;
}

.pet-frame {
  width: 192px;
  height: 208px;
  background-repeat: no-repeat;
  image-rendering: auto;
  will-change: background-position;
}

.pet-frame.is-pixel {
  image-rendering: pixelated;
}

.ground-line {
  position: absolute;
  left: 50%;
  bottom: 17%;
  width: min(56%, 320px);
  height: 8px;
  border-radius: 999px;
  background: var(--line);
  transform: translateX(-50%);
}

.controls {
  display: grid;
  gap: 14px;
  padding: 16px 16px 20px;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(18px);
}

.segmented {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 4px;
  padding: 4px;
  border-radius: 10px;
  background: #e7ecea;
}

.segment,
.motion {
  min-height: 44px;
  border: 0;
  border-radius: 8px;
  color: var(--text);
  background: transparent;
  font-weight: 700;
  cursor: pointer;
}

.segment.is-selected,
.motion.is-selected {
  color: #fff;
  background: var(--control-active);
}

.motion-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
}

.motion {
  height: 58px;
  background: var(--control);
}

.speed-control {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) 58px;
  align-items: center;
  gap: 12px;
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 700;
}

input[type="range"] {
  accent-color: var(--accent);
  width: 100%;
}

output {
  color: var(--text);
  font-variant-numeric: tabular-nums;
  text-align: right;
}

@media (min-width: 760px) {
  body {
    display: grid;
    place-items: center;
    padding: 24px;
  }

  .app-shell {
    overflow: hidden;
    min-height: min(860px, calc(100vh - 48px));
    border: 1px solid rgba(46, 56, 59, 0.1);
    border-radius: 18px;
    box-shadow: 0 22px 64px rgba(24, 48, 54, 0.14);
  }
}

@media (max-width: 420px) {
  .topbar {
    padding: 18px 16px;
  }

  .stage {
    min-height: 340px;
  }

  .motion-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}