* { margin: 0; padding: 0; box-sizing: border-box; }

html, body {
  width: 100%; height: 100%;
  background: #000;
  font-family: 'Consolas', 'Courier New', monospace;
  color: #c8f0ff;
  overflow: hidden;
  user-select: none;
}

#wrap {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(ellipse at center, #0a0a1a 0%, #000 80%);
}

#game {
  display: block;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  width: min(100vw, calc(100vh * 16 / 9));
  height: min(100vh, calc(100vw * 9 / 16));
  background: #04060c;
  box-shadow:
    0 0 0 2px #11202e,
    0 0 60px rgba(0, 200, 255, 0.25),
    inset 0 0 80px rgba(0, 30, 60, 0.6);
}

#scanlines {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    0deg,
    rgba(0, 0, 0, 0) 0px,
    rgba(0, 0, 0, 0) 2px,
    rgba(0, 0, 0, 0.18) 3px,
    rgba(0, 0, 0, 0) 4px
  );
  mix-blend-mode: multiply;
  opacity: 0.7;
  z-index: 5;
}

.screen {
  position: absolute;
  inset: 0;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: rgba(2, 4, 12, 0.78);
  backdrop-filter: blur(2px);
  z-index: 10;
  padding: 30px;
}

.screen.show { display: flex; }

h1.title-main {
  font-size: clamp(36px, 6vw, 72px);
  letter-spacing: 0.2em;
  color: #ff3aa0;
  text-shadow:
    0 0 8px #ff3aa0,
    0 0 22px #ff3aa0,
    0 0 44px rgba(255, 58, 160, 0.6);
  animation: pulse 2.4s ease-in-out infinite;
}

h2.title-sub {
  font-size: clamp(14px, 2vw, 22px);
  letter-spacing: 0.4em;
  color: #00e1ff;
  text-shadow: 0 0 10px #00e1ff;
  margin-top: 6px;
  margin-bottom: 30px;
}

h1.title-over {
  font-size: clamp(28px, 5vw, 60px);
  letter-spacing: 0.2em;
  color: #ff3a3a;
  text-shadow: 0 0 14px #ff3a3a, 0 0 30px rgba(255, 0, 0, 0.55);
}

h1.title-win {
  font-size: clamp(28px, 5vw, 60px);
  letter-spacing: 0.2em;
  color: #6dff8e;
  text-shadow: 0 0 14px #6dff8e, 0 0 30px rgba(100, 255, 130, 0.55);
}

h1.title-pause {
  font-size: clamp(28px, 5vw, 60px);
  color: #ffe45a;
  text-shadow: 0 0 14px #ffe45a;
}

.tagline {
  margin-top: 16px;
  font-size: clamp(12px, 1.4vw, 16px);
  color: #8aa8c0;
  letter-spacing: 0.1em;
}

.controls {
  margin-top: 36px;
  line-height: 1.9;
  font-size: clamp(11px, 1.2vw, 14px);
  color: #aac6e0;
}

.ctrl-group { margin-top: 18px; }
.ctrl-group:first-child { margin-top: 0; }

.ctrl-label {
  font-size: clamp(10px, 1.05vw, 12px);
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: #ff3aa0;
  text-shadow: 0 0 8px rgba(255, 58, 160, 0.55);
  margin-bottom: 4px;
}

.controls .key {
  display: inline-block;
  padding: 2px 8px;
  margin: 0 2px;
  background: #102030;
  border: 1px solid #2a4a66;
  border-radius: 3px;
  color: #ffe45a;
  font-weight: bold;
  box-shadow: 0 2px 0 #0a141e;
}

.start-prompt {
  margin-top: 40px;
  font-size: clamp(13px, 1.6vw, 18px);
  color: #ffffff;
  letter-spacing: 0.15em;
  animation: blink 1.1s steps(2) infinite;
}

#final-score-over, #final-score-win, #final-rank {
  margin-top: 18px;
  font-size: clamp(16px, 2vw, 24px);
  color: #ffe45a;
  letter-spacing: 0.1em;
}

@keyframes blink {
  50% { opacity: 0.2; }
}

@keyframes pulse {
  0%, 100% { filter: brightness(1); }
  50% { filter: brightness(1.35); }
}