:root {
  --glass: rgba(255, 255, 255, 0.12);
  --glass-brd: rgba(255, 255, 255, 0.22);
  --ink: rgba(255, 255, 255, 0.92);
  --ink-soft: rgba(255, 255, 255, 0.62);
  --accent: #ffd98a;
}

* { margin: 0; padding: 0; box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html, body {
  width: 100%; height: 100%;
  overflow: hidden;
  background: #0d3b45;
  font-family: 'Sarabun', system-ui, -apple-system, 'Segoe UI', sans-serif;
  color: var(--ink);
  user-select: none;
  -webkit-user-select: none;
  touch-action: none;
}

#pond {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  display: block;
  cursor: pointer;
}

#ui {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 10;
  padding: max(14px, env(safe-area-inset-top)) 16px 16px;
}

#ui .panel,
#ui .controls,
#ui button { pointer-events: auto; }

/* ---- glass panels ---- */
.panel {
  position: absolute;
  background: var(--glass);
  border: 1px solid var(--glass-brd);
  border-radius: 16px;
  backdrop-filter: blur(14px) saturate(1.2);
  -webkit-backdrop-filter: blur(14px) saturate(1.2);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.18);
}

.top-left {
  top: max(14px, env(safe-area-inset-top));
  left: 16px;
  padding: 12px 18px;
}

.pond-title {
  font-family: 'Playfair Display', 'Sarabun', serif;
  font-size: 20px;
  letter-spacing: 0.3px;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}
.pond-sub {
  font-size: 12.5px;
  color: var(--ink-soft);
  margin-top: 2px;
}
#level { color: var(--accent); font-weight: 600; }

/* ---- top-right controls ---- */
.top-right {
  position: absolute;
  top: max(14px, env(safe-area-inset-top));
  right: 16px;
  display: flex;
  gap: 8px;
}
.glass-btn {
  width: 42px; height: 42px;
  border-radius: 14px;
  background: var(--glass);
  border: 1px solid var(--glass-brd);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  color: var(--ink);
  font-size: 18px;
  cursor: pointer;
  transition: transform 0.15s, background 0.2s;
}
.glass-btn:hover { background: rgba(255, 255, 255, 0.2); }
.glass-btn:active { transform: scale(0.9); }
.glass-btn.off { opacity: 0.4; }

/* ---- bottom bar ---- */
.bottom-bar {
  left: 50%;
  bottom: max(16px, env(safe-area-inset-bottom));
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 10px 16px;
  max-width: calc(100vw - 32px);
}
.resource {
  display: flex; align-items: center; gap: 5px;
  font-size: 15px; font-weight: 600;
  white-space: nowrap;
}
.resource .ico { font-size: 17px; }

.food-meter {
  position: relative;
  width: 120px; height: 14px;
  border-radius: 20px;
  background: rgba(0, 0, 0, 0.25);
  overflow: hidden;
  border: 1px solid var(--glass-brd);
}
.food-fill {
  position: absolute; inset: 0;
  width: 100%;
  transform-origin: left;
  background: linear-gradient(90deg, #ffcf6b, #ff9d5c);
  border-radius: 20px;
  transition: transform 0.3s ease;
}
.food-ico {
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  font-size: 11px;
  filter: drop-shadow(0 1px 1px rgba(0, 0, 0, 0.4));
}

.add-btn {
  display: flex; align-items: center; gap: 6px;
  padding: 8px 14px;
  border-radius: 12px;
  border: 1px solid rgba(255, 217, 138, 0.5);
  background: linear-gradient(135deg, rgba(255, 217, 138, 0.28), rgba(255, 157, 92, 0.22));
  color: var(--ink);
  font-family: inherit;
  font-size: 14px; font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: transform 0.15s, filter 0.2s;
}
.add-btn small { font-size: 11px; opacity: 0.85; font-weight: 400; }
.add-btn:hover { filter: brightness(1.12); }
.add-btn:active { transform: scale(0.94); }
.add-btn:disabled { opacity: 0.4; cursor: default; }

/* ---- hint ---- */
.hint {
  position: absolute;
  left: 50%; top: 42%;
  transform: translateX(-50%);
  font-size: 16px;
  color: var(--ink);
  background: rgba(0, 0, 0, 0.22);
  padding: 10px 20px;
  border-radius: 30px;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  opacity: 0;
  transition: opacity 1s;
  text-shadow: 0 1px 6px rgba(0, 0, 0, 0.4);
}
.hint.show { opacity: 1; }

/* ---- toast ---- */
.toast {
  position: absolute;
  left: 50%; bottom: 92px;
  transform: translateX(-50%) translateY(12px);
  background: rgba(0, 0, 0, 0.42);
  color: var(--ink);
  padding: 9px 18px;
  border-radius: 24px;
  font-size: 14px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 0;
  transition: opacity 0.4s, transform 0.4s;
  pointer-events: none;
  white-space: nowrap;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

@media (max-width: 480px) {
  .pond-title { font-size: 17px; }
  .food-meter { width: 84px; }
  .bottom-bar { gap: 10px; padding: 9px 12px; }
  .add-btn { padding: 7px 11px; font-size: 13px; }
}