:root {
  --bg: #07060f;
  --card: #12101f;
  --border: #2a2540;
  --text: #f4f0ff;
  --muted: #9b92b8;
  --accent: #7cffb2;
  --accent2: #ff6bcb;
  --warn: #ffd166;
  --glow: rgba(124, 255, 178, 0.35);
  --font: "Space Grotesk", system-ui, sans-serif;
  --mono: "IBM Plex Mono", monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: var(--font);
  background: radial-gradient(ellipse 120% 80% at 50% -20%, #1a1035 0%, var(--bg) 55%);
  color: var(--text);
  line-height: 1.45;
}

.stars {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    radial-gradient(1px 1px at 10% 20%, #fff8 0, transparent 100%),
    radial-gradient(1px 1px at 80% 40%, #fff6 0, transparent 100%),
    radial-gradient(1.5px 1.5px at 50% 70%, #fff5 0, transparent 100%),
    radial-gradient(1px 1px at 30% 90%, #fff4 0, transparent 100%);
  opacity: 0.6;
}

.top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem clamp(1rem, 4vw, 2.5rem);
  position: sticky;
  top: 0;
  backdrop-filter: blur(12px);
  background: #07060fcc;
  border-bottom: 1px solid var(--border);
  z-index: 2;
}

.brand { display: flex; gap: 0.75rem; align-items: center; }
.brand h1 { margin: 0; font-size: 1.35rem; letter-spacing: -0.02em; }
.eyebrow { margin: 0; font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.14em; color: var(--muted); }
.saucer { font-size: 2rem; filter: drop-shadow(0 0 12px var(--glow)); animation: hover 3s ease-in-out infinite; }

@keyframes hover {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

.toggle {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--mono);
  font-size: 0.8rem;
  cursor: pointer;
}
.toggle input { accent-color: var(--accent); }

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.5rem clamp(1rem, 4vw, 2.5rem) 3rem;
  display: grid;
  gap: 1.25rem;
}

.card {
  background: linear-gradient(145deg, #161228 0%, var(--card) 100%);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 1.25rem 1.35rem;
  box-shadow: 0 12px 40px #00000055;
}

.hero {
  display: grid;
  grid-template-columns: 1fr minmax(200px, 360px);
  gap: 1rem;
  align-items: center;
}
@media (max-width: 720px) {
  .hero { grid-template-columns: 1fr; }
}

.formula {
  font-size: clamp(1.4rem, 4vw, 2rem);
  margin: 0 0 0.5rem;
  font-family: var(--mono);
}
.formula strong { color: var(--accent); }
.sub { color: var(--muted); margin: 0 0 1rem; max-width: 42ch; }

.hero-actions { display: flex; flex-wrap: wrap; gap: 0.6rem; }
.btn {
  font-family: var(--font);
  font-weight: 600;
  border-radius: 999px;
  padding: 0.65rem 1.1rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
}
.btn:hover { transform: translateY(-1px); }
.btn.primary {
  background: linear-gradient(90deg, var(--accent), #5ce0ff);
  color: #04120a;
  box-shadow: 0 0 24px var(--glow);
}
.btn.ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}

#saucerCanvas {
  width: 100%;
  border-radius: 14px;
  background: #0a0814;
  border: 1px solid var(--border);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}
@media (max-width: 800px) {
  .grid-3 { grid-template-columns: 1fr; }
}

h2 { margin: 0 0 0.75rem; font-size: 1rem; letter-spacing: 0.02em; }
.mono { font-family: var(--mono); font-size: 0.85rem; }
.muted { color: var(--muted); font-size: 0.88rem; margin: 0.25rem 0 0; }
.big-byte { font-size: 3rem; margin: 0; font-family: var(--mono); color: var(--accent2); }
.status { font-size: 1.4rem; font-weight: 700; margin: 0; color: var(--warn); }
.status.armed { color: var(--accent); }

.bar {
  height: 10px;
  background: #1e1a30;
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 0.5rem;
}
.fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent2), var(--accent));
  transition: width 0.4s ease;
}

.dex-track {
  display: flex;
  gap: 0.75rem;
  overflow-x: auto;
  padding-bottom: 0.5rem;
}
.dex-card {
  min-width: 120px;
  text-align: center;
  padding: 0.75rem;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: #0e0c18;
  opacity: 0.45;
  transition: opacity 0.2s, transform 0.2s, box-shadow 0.2s;
}
.dex-card.active {
  opacity: 1;
  transform: scale(1.04);
  box-shadow: 0 0 20px var(--glow);
  border-color: var(--accent);
}
.dex-card .sprite { font-size: 2rem; display: block; margin-bottom: 0.35rem; }
.dex-card .name { font-size: 0.78rem; font-weight: 600; }
.dex-card .stage { font-size: 0.68rem; color: var(--muted); font-family: var(--mono); }

.journey {
  margin: 0;
  padding-left: 1.1rem;
  display: grid;
  gap: 0.35rem;
}
.journey li { color: var(--muted); }
.journey li.active { color: var(--text); font-weight: 600; }

.coins {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 0.75rem;
}
.coin {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 0.85rem;
  background: #0c0a16;
}
.coin h3 { margin: 0 0 0.25rem; font-size: 0.95rem; }
.coin p { margin: 0; font-size: 0.78rem; color: var(--muted); font-family: var(--mono); }

.rules ul { margin: 0.5rem 0 0; padding-left: 1.1rem; color: var(--muted); }
.rules li { margin-bottom: 0.35rem; }

footer {
  text-align: center;
  padding: 2rem 1rem 3rem;
  color: var(--muted);
  font-size: 0.82rem;
}

body.byte-on .card { border-color: #4a3a6a; }
body.byte-on .stars { opacity: 1; }
body.byte-on::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(124, 255, 178, 0.03) 2px,
    rgba(124, 255, 178, 0.03) 4px
  );
}