:root {
  --bg-1: #07111f;
  --bg-2: #102b3f;
  --bg-3: #1c5a72;
  --panel: rgba(6, 14, 24, 0.82);
  --panel-border: rgba(126, 224, 255, 0.22);
  --text: #e8fbff;
  --muted: #9ed7e6;
  --accent: #67f0ff;
  --accent-2: #ffb347;
  --danger: #ff5f7d;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Space Grotesk", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(103, 240, 255, 0.18), transparent 35%),
    radial-gradient(circle at 85% 15%, rgba(255, 179, 71, 0.22), transparent 28%),
    linear-gradient(140deg, var(--bg-1), var(--bg-2) 55%, var(--bg-3));
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 30px 30px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.6), transparent 80%);
}

.page-shell {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 36px 0 48px;
}

.app-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
  padding: 10px 16px;
  border: 1px solid rgba(103, 240, 255, 0.18);
  border-radius: 999px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
  text-decoration: none;
  font-weight: 700;
  backdrop-filter: blur(10px);
}

.app-link:hover {
  background: rgba(103, 240, 255, 0.08);
}

.hero {
  margin-bottom: 28px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: 0.72rem;
  font-weight: 700;
}

h1,
h2 {
  font-family: "Orbitron", sans-serif;
}

h1 {
  margin: 0;
  font-size: clamp(2.8rem, 7vw, 5.8rem);
  line-height: 0.95;
  text-transform: uppercase;
  text-shadow: 0 0 24px rgba(103, 240, 255, 0.18);
}

.hero-copy {
  margin: 12px 0 0;
  max-width: 620px;
  color: var(--muted);
  font-size: 1.05rem;
}

.layout {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(260px, 0.9fr);
  gap: 24px;
  align-items: start;
}

.game-panel,
.info-card {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.game-panel {
  border-radius: 28px;
  padding: 22px;
}

.hud {
  display: flex;
  gap: 14px;
  align-items: center;
  margin-bottom: 18px;
}

.hud-card {
  flex: 0 0 auto;
  min-width: 110px;
  padding: 12px 14px;
  border-radius: 18px;
  background: rgba(103, 240, 255, 0.08);
  border: 1px solid rgba(103, 240, 255, 0.16);
}

.hud-label {
  display: block;
  color: var(--muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 6px;
}

.hud strong {
  font-size: 1.45rem;
}

.restart-button,
.start-button,
.touch-controls button {
  border: 0;
  border-radius: 999px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  color: #04151f;
  background: linear-gradient(135deg, var(--accent), #d4fbff);
  transition: transform 140ms ease, box-shadow 140ms ease, opacity 140ms ease;
}

.restart-button {
  margin-left: auto;
  padding: 12px 20px;
  box-shadow: 0 10px 24px rgba(103, 240, 255, 0.2);
}

.restart-button:hover,
.start-button:hover,
.touch-controls button:hover {
  transform: translateY(-1px);
}

.canvas-frame {
  position: relative;
  border-radius: 24px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: linear-gradient(180deg, rgba(7, 18, 30, 0.9), rgba(4, 11, 21, 0.98));
}

canvas {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 21 / 32;
}

.overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 14px;
  padding: 24px;
  text-align: center;
  background: linear-gradient(180deg, rgba(4, 11, 21, 0.28), rgba(4, 11, 21, 0.86));
}

.overlay.hidden {
  display: none;
}

.overlay h2 {
  margin: 0;
  font-size: clamp(1.5rem, 4vw, 2.2rem);
}

.overlay p {
  margin: 0;
  max-width: 320px;
  color: var(--muted);
}

.start-button {
  padding: 14px 24px;
  box-shadow: 0 12px 28px rgba(103, 240, 255, 0.22);
}

.touch-controls {
  display: none;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 16px;
}

.touch-controls button {
  padding: 14px 18px;
}

.info-panel {
  display: grid;
  gap: 18px;
}

.info-card {
  border-radius: 24px;
  padding: 22px;
}

.info-card h2 {
  margin: 0 0 10px;
  font-size: 1.05rem;
}

.info-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.accent-card {
  background:
    linear-gradient(155deg, rgba(255, 179, 71, 0.18), rgba(6, 14, 24, 0.82)),
    var(--panel);
}

@media (max-width: 920px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .info-panel {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .page-shell {
    width: min(100%, calc(100% - 20px));
    padding-top: 22px;
  }

  .game-panel,
  .info-card {
    border-radius: 22px;
  }

  .hud {
    flex-wrap: wrap;
  }

  .restart-button {
    width: 100%;
    margin-left: 0;
  }

  .info-panel {
    grid-template-columns: 1fr;
  }

  .touch-controls {
    display: grid;
  }
}