:root {
  color-scheme: dark;
  --bg: #070b18;
  --panel: #101a33;
  --line: #2e4378;
  --text: #edf3ff;
  --muted: #9cb2dc;
  --cyan: #63e6ff;
  --magenta: #ff70d0;
  --amber: #ffd27e;
  --good: #8bffb2;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 14% 12%, #24458f 0%, transparent 34%),
    radial-gradient(circle at 84% 90%, #67244e 0%, transparent 30%),
    var(--bg);
  padding: 20px 12px;
}

.wrap {
  width: min(980px, 100%);
  margin: 0 auto;
  display: grid;
  gap: 14px;
}

.panel {
  border: 2px solid var(--line);
  border-radius: 14px;
  background: linear-gradient(180deg, rgba(255,255,255,0.03), transparent), var(--panel);
  padding: 14px;
  box-shadow: 0 12px 28px rgba(0,0,0,0.35);
}

.kicker {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.78rem;
  color: var(--amber);
}

.hero h1 {
  margin: 6px 0 8px;
  color: var(--cyan);
  font-size: clamp(1.5rem, 2.9vw, 2.3rem);
}

.subtitle {
  margin: 0;
  color: var(--muted);
  max-width: 70ch;
}

.hud {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 8px;
  margin-bottom: 10px;
}

.stat {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(0,0,0,0.2);
  padding: 8px 10px;
}

.stat span {
  display: block;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.72rem;
  color: var(--muted);
  margin-bottom: 4px;
}

.stage {
  position: relative;
  border: 1px solid #3b548f;
  border-radius: 12px;
  overflow: hidden;
  background: #050911;
}

canvas {
  width: 100%;
  height: auto;
  display: block;
  image-rendering: pixelated;
}

.scanlines {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    to bottom,
    rgba(255, 255, 255, 0.07) 0,
    rgba(255, 255, 255, 0.07) 1px,
    rgba(0, 0, 0, 0) 2px,
    rgba(0, 0, 0, 0) 4px
  );
  mix-blend-mode: soft-light;
  opacity: 0.24;
}

.meter-wrap {
  margin-top: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.meter-label {
  font-size: 0.84rem;
  text-transform: uppercase;
  color: var(--muted);
  letter-spacing: 0.08em;
}

.meter {
  flex: 1;
  border: 1px solid #4966a9;
  background: #0a1328;
  border-radius: 999px;
  height: 14px;
  overflow: hidden;
}

.meter-fill {
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, #52ceff, #ff5cc8);
  box-shadow: 0 0 14px rgba(99, 230, 255, 0.4);
}

.controls {
  margin-top: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

button {
  border-radius: 999px;
  border: 1px solid #5f79ba;
  padding: 8px 14px;
  color: var(--text);
  background: #1b2a4f;
  font-weight: 700;
  cursor: pointer;
}

button:hover { filter: brightness(1.08); }

button.primary {
  background: linear-gradient(120deg, #3158b4, #7f40be);
  border-color: #9fbcff;
}

.status {
  margin: 10px 0 0;
  min-height: 1.4em;
  color: var(--cyan);
}

.tips h2 {
  margin: 0 0 8px;
  color: var(--amber);
  font-size: 1rem;
}

.tips ul {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
  line-height: 1.4;
}

.back {
  display: inline-block;
  margin-top: 10px;
  color: var(--amber);
  text-decoration: none;
}

.back:hover { text-decoration: underline; }