:root {
  color-scheme: dark;
  --bg: #03020a;
  --panel: rgba(7, 9, 26, 0.82);
  --panel-strong: rgba(14, 7, 42, 0.94);
  --text: #f7fbff;
  --muted: #aeb6d4;
  --line: rgba(0, 245, 255, 0.28);
  --neon-cyan: #00f5ff;
  --neon-pink: #ff2bd6;
  --neon-red: #ff2b5f;
  --accent: var(--neon-cyan);
  --accent-2: var(--neon-pink);
  font-family: "Avenir Next", "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

body {
  min-height: 100vh;
  margin: 0;
  color: var(--text);
  background:
    linear-gradient(115deg, transparent 0 46%, rgba(255, 43, 214, 0.08) 46% 47%, transparent 47%),
    linear-gradient(65deg, transparent 0 53%, rgba(0, 245, 255, 0.09) 53% 54%, transparent 54%),
    radial-gradient(circle at 14% 20%, rgba(0, 245, 255, 0.28), transparent 24%),
    radial-gradient(circle at 84% 8%, rgba(255, 43, 214, 0.24), transparent 25%),
    linear-gradient(180deg, #070019 0%, #12002f 45%, #03020a 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.035) 0 1px, transparent 1px 6px),
    linear-gradient(90deg, rgba(0, 245, 255, 0.06), transparent 28%, transparent 72%, rgba(255, 43, 214, 0.06));
  mix-blend-mode: screen;
}

.app-shell {
  width: min(1280px, calc(100vw - 24px));
  margin: 0 auto;
  padding: 22px 0 38px;
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr) 270px;
  grid-template-areas:
    "hero stage score"
    "proof proof proof";
  gap: 14px;
}

.hero {
  display: contents;
}

.hero-copy,
.score-panel,
.game-stage,
.proof article {
  position: relative;
  border: 1px solid var(--line);
  background:
    linear-gradient(135deg, rgba(0, 245, 255, 0.13), transparent 26%),
    linear-gradient(315deg, rgba(255, 43, 214, 0.12), transparent 30%),
    var(--panel);
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.04) inset,
    0 22px 80px rgba(0, 0, 0, 0.48),
    0 0 44px rgba(0, 245, 255, 0.12);
  backdrop-filter: blur(16px);
  clip-path: polygon(0 0, calc(100% - 26px) 0, 100% 26px, 100% 100%, 26px 100%, 0 calc(100% - 26px));
}

.hero-copy {
  grid-area: hero;
  overflow: hidden;
  min-height: 650px;
  padding: 28px 20px;
}

.hero-copy::after {
  content: "";
  position: absolute;
  right: -80px;
  bottom: -110px;
  width: 420px;
  height: 260px;
  border: 1px solid rgba(0, 245, 255, 0.2);
  background: repeating-linear-gradient(90deg, rgba(0, 245, 255, 0.12) 0 2px, transparent 2px 20px);
  transform: rotate(-17deg);
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--neon-cyan);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1 {
  max-width: 280px;
  margin: 0;
  color: #fff;
  font-size: clamp(45px, 5vw, 64px);
  line-height: 0.92;
  letter-spacing: 0;
  text-shadow:
    0 0 18px rgba(0, 245, 255, 0.55),
    0 0 36px rgba(255, 43, 214, 0.34);
}

.hero-copy p:not(.eyebrow) {
  max-width: 260px;
  margin: 20px 0 0;
  color: var(--muted);
  font-size: clamp(16px, 2vw, 21px);
  line-height: 1.55;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

button {
  min-height: 46px;
  border: 1px solid rgba(0, 245, 255, 0.7);
  padding: 12px 18px;
  color: #02030a;
  background: linear-gradient(135deg, var(--neon-cyan), #a8fff9 52%, var(--neon-pink));
  font-size: 13px;
  font-weight: 950;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  clip-path: polygon(0 0, calc(100% - 13px) 0, 100% 13px, 100% 100%, 13px 100%, 0 calc(100% - 13px));
}

button.ghost {
  color: var(--text);
  background: rgba(255, 255, 255, 0.045);
  border-color: rgba(255, 43, 214, 0.72);
}

.score-panel {
  grid-area: score;
  display: grid;
  gap: 10px;
  align-content: center;
  padding: 18px;
}

.score-panel span {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 13px;
  border-left: 3px solid var(--neon-cyan);
  background: rgba(255, 255, 255, 0.045);
  color: var(--muted);
  font-size: 13px;
  font-weight: 850;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.score-panel span:nth-child(even) { border-left-color: var(--neon-pink); }
.score-panel strong { color: var(--text); }

.game-stage {
  grid-area: stage;
  overflow: hidden;
  padding: 10px;
}

canvas {
  display: block;
  width: 100%;
  min-height: 650px;
  border: 1px solid rgba(255, 43, 214, 0.24);
  background: #03020a;
  box-shadow: inset 0 0 70px rgba(0, 245, 255, 0.1);
  touch-action: none;
}

.instructions {
  color: var(--muted);
  padding: 12px 6px 2px;
  font-size: 14px;
  line-height: 1.6;
}

.proof {
  grid-area: proof;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 14px;
}

.proof article {
  padding: 22px;
}

.proof h2 {
  margin: 0 0 10px;
  color: var(--neon-cyan);
  font-size: 16px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.proof p {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

@media (max-width: 860px) {
  .app-shell {
    display: block;
  }

  .hero {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
    margin-bottom: 12px;
  }

  .hero,
  .proof {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    min-height: 0;
  }

  .score-panel {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  h1 {
    font-size: clamp(46px, 14vw, 76px);
  }
}

@media (max-width: 560px) {
  .app-shell {
    width: min(100% - 16px, 1280px);
    padding-top: 8px;
  }

  .hero-copy {
    min-height: 0;
    padding: 24px 18px;
  }

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

  canvas {
    min-height: 520px;
  }
}