:root {
  --bg: #070f0a;
  --panel: #0e2015;
  --ink: #f2e9c8;
  --accent: #ffd94d;
  --leaf: #2c8a4e;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: radial-gradient(1200px 800px at 50% -10%, #12291b 0%, var(--bg) 60%);
  color: var(--ink);
  font-family: "Trebuchet MS", Verdana, sans-serif;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100vh;
  padding: 10px;
}
h1 {
  margin: 6px 0 2px;
  font-size: 28px;
  letter-spacing: 6px;
  color: var(--accent);
  text-shadow: 0 0 18px rgba(255, 217, 77, 0.6);
}
.sub { margin: 0 0 8px; font-size: 13px; opacity: 0.8; }
#hud {
  display: flex;
  gap: 18px;
  align-items: center;
  background: var(--panel);
  border: 1px solid #1f4a30;
  border-radius: 10px;
  padding: 6px 16px;
  margin-bottom: 8px;
  font-size: 15px;
  flex-wrap: wrap;
  justify-content: center;
  user-select: none;
  -webkit-user-select: none;
}
#hud b { color: var(--accent); }
#hud-level { display: inline-block; }
#hud-level.level-pop {
  animation: hud-level-pop 0.6s ease;
}
@keyframes hud-level-pop {
  0% { transform: scale(1); }
  40% { transform: scale(1.6); }
  100% { transform: scale(1); }
}
#hud-lives { color: var(--accent); letter-spacing: 2px; }
#hud-seeds.blink {
  animation: hud-seeds-blink 0.7s steps(2, start) infinite;
}
@keyframes hud-seeds-blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.15; }
}
#stage { position: relative; }
canvas {
  display: block;
  width: min(94vw, 430px);
  height: auto;
  border: 2px solid #1f4a30;
  border-radius: 12px;
  background: #0a1c13;
  touch-action: none;
  image-rendering: auto;
}
#overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: rgba(5, 12, 8, 0.78);
  border-radius: 12px;
  text-align: center;
  padding: 16px;
}
#overlay.hidden { display: none; }
#overlay-title { margin: 0; font-size: 34px; letter-spacing: 4px; color: var(--accent); }
#overlay-text { font-size: 14px; line-height: 1.6; }
.clear-rows { display: table; margin: 4px auto 2px; border-collapse: collapse; font-size: 14px; }
.clear-row { display: table-row; }
.clear-row > span { display: table-cell; padding: 2px 10px; text-align: right; font-variant-numeric: tabular-nums; }
.clear-row > span:first-child { text-align: left; opacity: 0.85; }
.clear-row.total > span { font-weight: bold; color: var(--accent); font-size: 16px; border-top: 1px solid #1f4a30; padding-top: 6px; }
.clear-next { font-size: 12px; opacity: 0.75; margin: 6px 0 0; }
#record-toast {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 5;
  background: var(--accent);
  color: #3a2a10;
  font-weight: bold;
  font-size: 18px;
  letter-spacing: 1px;
  padding: 8px 18px;
  border-radius: 10px;
  box-shadow: 0 0 18px rgba(255, 217, 77, 0.6);
  pointer-events: none;
  white-space: nowrap;
}
#record-toast.hidden { display: none; }
#record-toast.record-pop {
  animation: record-pop 0.5s ease;
}
@keyframes record-pop {
  0% { transform: translateX(-50%) scale(0.6); opacity: 0; }
  60% { transform: translateX(-50%) scale(1.1); opacity: 1; }
  100% { transform: translateX(-50%) scale(1); opacity: 1; }
}
@media (prefers-reduced-motion: reduce) {
  #record-toast.record-pop { animation: none; }
}
button {
  font: inherit;
  cursor: pointer;
  background: var(--accent);
  color: #3a2a10;
  border: none;
  border-radius: 8px;
  padding: 10px 22px;
  font-weight: bold;
}
button:active { transform: scale(0.97); }
#btn-pause, #btn-mute {
  margin-top: 8px;
  background: var(--panel);
  color: var(--ink);
  border: 1px solid #1f4a30;
  padding: 6px 18px;
  font-weight: normal;
}
.help { margin: 8px 0 0; font-size: 12px; opacity: 0.75; text-align: center; line-height: 1.7; }