:root {
  --bg: #0d0f14;
  --fg: #e6e9ef;
  --muted: #9aa3b2;
  --accent: #7c96ff;
  --accent-2: #ff7c9e;
  --accent-3: #72e0a6;
  --pill-bg: rgba(124, 150, 255, 0.12);
  --pill-fg: #bfc8ff;
  --btn-bg: #151922;
  --btn-hover: #1b2130;
}

html[data-theme="light"] {
  --bg: #f8f9fb;
  --fg: #0a0d12;
  --muted: #596273;
  --accent: #3948ff;
  --accent-2: #ff3b6b;
  --accent-3: #0dbb73;
  --pill-bg: rgba(57, 72, 255, 0.10);
  --pill-fg: #313b9f;
  --btn-bg: #ffffff;
  --btn-hover: #f0f3f8;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Noto Sans", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

.app {
  position: relative;
  width: 100vw;
  height: 100vh;
  display: grid;
  grid-template-rows: 1fr;
}

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

.hud {
  position: absolute;
  inset: 0;
  pointer-events: none;
  display: grid;
  align-content: end;
  gap: 14px;
  padding: 20px;
}

.status { display: flex; justify-content: flex-start; }
.pill {
  pointer-events: auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  background: var(--pill-bg);
  color: var(--pill-fg);
  backdrop-filter: blur(6px);
}

.headline {
  font-size: clamp(20px, 3vw, 28px);
  font-weight: 600;
  letter-spacing: 0.2px;
  text-shadow: 0 1px 0 rgba(0,0,0,0.1);
}

.subtext {
  color: var(--muted);
  font-size: clamp(13px, 2vw, 14px);
}

.controls {
  pointer-events: auto;
  display: flex;
  gap: 10px;
}

.btn {
  appearance: none;
  border: 0;
  background: var(--btn-bg);
  color: var(--fg);
  padding: 8px 12px;
  border-radius: 10px;
  transition: background 160ms ease, transform 160ms ease;
}
.btn:hover { background: var(--btn-hover); transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

@media (max-width: 640px) {
  .headline { font-size: 18px; }
}