:root {
  color-scheme: dark;
  font-family: Inter, ui-rounded, "Segoe UI", system-ui, sans-serif;
  background: #07130d;
  color: #efffec;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at 20% 10%, rgba(124, 255, 107, 0.22), transparent 22rem),
    radial-gradient(circle at 85% 70%, rgba(61, 220, 255, 0.18), transparent 26rem),
    linear-gradient(145deg, #07130d 0%, #0d2017 52%, #04100e 100%);
}

button {
  font: inherit;
}

.home-link {
  position: fixed;
  left: 1rem;
  top: 1rem;
  z-index: 2;
  color: #caffc3;
  font-weight: 900;
  text-decoration: none;
}

.shell {
  width: min(1280px, calc(100% - 2rem));
  min-height: 100vh;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(18rem, 24rem) minmax(0, 1fr);
  gap: clamp(1rem, 3vw, 2rem);
  align-items: center;
  padding: 4rem 0 2rem;
}

.intro,
.game-card {
  border: 1px solid rgba(202, 255, 195, 0.18);
  border-radius: 1.75rem;
  background: rgba(4, 16, 14, 0.72);
  box-shadow: 0 24px 90px rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(18px);
}

.intro {
  padding: clamp(1.35rem, 4vw, 2.25rem);
}

.eyebrow {
  color: #7cff6b;
  font-size: 0.78rem;
  font-weight: 950;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1 {
  margin: 0.4rem 0 0;
  font-size: clamp(2.8rem, 6vw, 5.2rem);
  line-height: 0.88;
  letter-spacing: -0.07em;
}

.lede {
  color: #c5d8c1;
  line-height: 1.6;
}

.join-row {
  display: grid;
  gap: 0.75rem;
  margin: 1.5rem 0;
}

button {
  border: 0;
  border-radius: 999px;
  padding: 0.9rem 1rem;
}

button {
  color: #04100e;
  background: linear-gradient(135deg, #7cff6b, #3ddcff);
  font-weight: 950;
  cursor: pointer;
}

.leaderboard {
  margin-top: 1.25rem;
}

.leaderboard h2 {
  font-size: 0.88rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.leaderboard ol {
  display: grid;
  gap: 0.5rem;
  margin: 0;
  padding-left: 1.25rem;
  color: #dfffd9;
}

.game-card {
  overflow: hidden;
  padding: clamp(0.7rem, 2vw, 1rem);
}

.topbar {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 0.6rem;
  margin-bottom: 0.75rem;
}

.topbar div {
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 1rem;
  padding: 0.65rem 0.8rem;
  background: rgba(255, 255, 255, 0.06);
}

.topbar span {
  display: block;
  color: #98ad94;
  font-size: 0.72rem;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.topbar strong {
  display: block;
  overflow: hidden;
  color: #ffffff;
  font-size: 1.05rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

canvas {
  display: block;
  width: 100%;
  aspect-ratio: 3 / 2;
  border-radius: 1.25rem;
  background: #06100b;
  box-shadow: inset 0 0 0 1px rgba(124, 255, 107, 0.16);
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.75rem;
  color: #c5d8c1;
  font-size: 0.9rem;
}

.game-message {
  min-height: 1.4rem;
  margin-top: 0.65rem;
  color: #ffcf3d;
  font-weight: 850;
}

.controls span {
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.07);
  padding: 0.5rem 0.75rem;
}

.mobile-controls {
  display: none;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.touch-button {
  min-height: 3.25rem;
  background: linear-gradient(135deg, #ffcf3d, #7cff6b);
}

.touch-up {
  grid-column: 2;
}

.touch-left {
  grid-column: 1;
}

.touch-down {
  grid-column: 2;
}

.touch-right {
  grid-column: 3;
}

@media (max-width: 860px) {
  .shell {
    grid-template-columns: 1fr;
    align-content: center;
  }

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

  .mobile-controls {
    display: grid;
  }
}