:root {
  --ink: #edf9f8;
  --cyber: #34d5ff;
  --pink: #ff78c9;
  --gold: #c2a05a;
  --panel: rgba(5, 13, 23, 0.78);
}

* {
  box-sizing: border-box;
}

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

body {
  color: var(--ink);
  font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
  background:
    radial-gradient(circle at 16% 12%, rgba(255, 120, 201, 0.24), transparent 22rem),
    radial-gradient(circle at 82% 18%, rgba(52, 213, 255, 0.28), transparent 24rem),
    linear-gradient(135deg, #06101d, #0a2b35 58%, #120b24);
}

.garden-shell {
  position: relative;
  width: 100%;
  height: 100%;
  display: grid;
  grid-template-rows: auto 1fr;
}

.garden-shell::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    repeating-linear-gradient(90deg, rgba(52, 213, 255, 0.1) 0 1px, transparent 1px 42px),
    repeating-linear-gradient(0deg, rgba(255, 120, 201, 0.07) 0 1px, transparent 1px 30px);
  mix-blend-mode: screen;
}

.garden-hud {
  position: relative;
  z-index: 3;
  min-height: 82px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 16px;
  align-items: center;
  padding: 14px clamp(14px, 3vw, 34px);
  border-bottom: 1px solid rgba(52, 213, 255, 0.24);
  background: rgba(5, 13, 23, 0.82);
  backdrop-filter: blur(14px);
}

.return-link,
.garden-hud output,
.touch-pad button {
  border: 1px solid rgba(52, 213, 255, 0.5);
  border-radius: 8px;
  color: var(--ink);
  text-decoration: none;
  background: rgba(255, 255, 255, 0.06);
  box-shadow: inset 0 0 18px rgba(52, 213, 255, 0.08);
}

.return-link {
  min-width: 72px;
  padding: 10px 14px;
  text-align: center;
  font-weight: 700;
}

.garden-hud p {
  margin: 0;
  color: var(--cyber);
  font-weight: 700;
  font-size: 0.78rem;
}

.garden-hud h1 {
  margin: 2px 0 0;
  font-family: "Yu Mincho", "Hiragino Mincho ProN", serif;
  font-size: clamp(1.15rem, 3vw, 2rem);
  line-height: 1.25;
  letter-spacing: 0;
}

.garden-hud output {
  min-width: 82px;
  padding: 9px 12px;
  text-align: center;
  color: #08111e;
  font-weight: 700;
  background: linear-gradient(90deg, var(--cyber), #eafffb);
}

.stage-wrap {
  position: relative;
  z-index: 1;
  min-height: 0;
  overflow: hidden;
}

#gardenCanvas {
  display: block;
  width: 100%;
  height: 100%;
  background: #09202a;
}

.loading-panel {
  position: absolute;
  left: 50%;
  top: 50%;
  z-index: 2;
  width: min(320px, calc(100% - 32px));
  padding: 18px;
  border: 1px solid rgba(52, 213, 255, 0.28);
  border-radius: 8px;
  text-align: center;
  background: var(--panel);
  transform: translate(-50%, -50%);
}

.loading-panel strong,
.loading-panel span {
  display: block;
}

.loading-panel span {
  margin-top: 6px;
  color: rgba(237, 249, 248, 0.76);
  font-size: 0.9rem;
}

.loading-panel[hidden] {
  display: none;
}

.touch-pad {
  position: absolute;
  left: 16px;
  bottom: 16px;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(3, 48px);
  grid-template-rows: repeat(2, 48px);
  gap: 8px;
}

.touch-pad button {
  min-width: 48px;
  min-height: 48px;
  color: var(--ink);
  font: inherit;
  font-weight: 700;
}

.touch-pad button[data-touch-key="ArrowUp"] {
  grid-column: 2;
}

.touch-pad button[data-touch-key="ArrowLeft"] {
  grid-column: 1;
  grid-row: 2;
}

.touch-pad button[data-touch-key="ArrowDown"] {
  grid-column: 2;
  grid-row: 2;
}

.touch-pad button[data-touch-key="ArrowRight"] {
  grid-column: 3;
  grid-row: 2;
}

.touch-pad button[data-touch-key="Shift"] {
  grid-column: 3;
  grid-row: 1;
  color: #08111e;
  background: linear-gradient(90deg, var(--pink), #fff0fa);
}

@media (max-width: 640px) {
  .garden-hud {
    grid-template-columns: 1fr auto;
    align-items: start;
  }

  .return-link {
    grid-row: 1 / span 2;
  }

  .garden-hud output {
    grid-column: 2;
  }

  .touch-pad {
    grid-template-columns: repeat(3, 44px);
    grid-template-rows: repeat(2, 44px);
  }

  .touch-pad button {
    min-width: 44px;
    min-height: 44px;
  }
}