:root {
  --bg: #0a0a0a;
  --fg: #ffffff;
  --muted: #cfcfcf;
  --accent: #ffffff;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  overflow: hidden;
}

.hero {
  position: relative;
  z-index: 2;
  height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 16px;
  padding: 24px;
}

h1 {
  margin: 0;
  font-size: clamp(40px, 8vw, 96px);
  letter-spacing: -0.02em;
}

p { margin: 0; color: var(--muted); }

.tagline {
  max-width: 840px;
  line-height: 1.5;
  font-size: clamp(12px, 1.8vw, 16px);
  opacity: 0.9;
}

/* equations removed */
.equations {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  margin-top: 6px;
  color: var(--fg);
  font-weight: 600;
  opacity: 0.95;
  font-size: clamp(12px, 1.6vw, 16px);
}

.mint-btn {
  margin-top: 10px;
  display: inline-block;
  padding: 14px 22px;
  border: 1px solid rgba(255,255,255,0.3);
  color: var(--fg);
  text-decoration: none;
  border-radius: 999px;
  transition: border-color 200ms, background 200ms;
  backdrop-filter: blur(6px);
}
.mint-btn:hover { border-color: var(--accent); background: rgba(255,255,255,0.06); }

.mint-btn.disabled {
  cursor: default;
  opacity: 0.7;
}
.mint-btn.disabled:hover {
  border-color: rgba(255,255,255,0.3);
  background: transparent;
}

.numbers {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: 0.15;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

.digit {
  position: absolute;
  color: var(--fg);
  font-size: clamp(10px, 1.8vw, 22px);
  animation: float linear infinite;
  will-change: transform, opacity;
}

@keyframes float {
  0% { transform: translateY(100vh) translateX(0); opacity: 0; }
  10% { opacity: 1; }
  100% { transform: translateY(-10vh) translateX(0); opacity: 0; }
}