:root {
  color-scheme: dark;
  --ice-100: #eaf7ff;
  --ice-300: #a8dcff;
  --ice-500: #56b9f0;
  --deep-800: #072238;
  --deep-900: #03101d;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "Space Grotesk", system-ui, sans-serif;
  background:
    radial-gradient(1200px 700px at 50% -10%, #0e3a5c 0%, transparent 60%),
    radial-gradient(900px 600px at 85% 100%, #0a2c47 0%, transparent 55%),
    linear-gradient(180deg, var(--deep-800), var(--deep-900));
  color: var(--ice-100);
  min-height: 100svh;
  display: grid;
  place-items: center;
  padding: 2rem;
  overflow-x: hidden;
}
#aurora {
  position: fixed;
  inset: -20%;
  pointer-events: none;
  background:
    radial-gradient(40% 30% at 30% 20%, rgba(86, 185, 240, 0.12), transparent 70%),
    radial-gradient(35% 25% at 70% 15%, rgba(168, 220, 255, 0.09), transparent 70%);
  animation: aurora-drift 14s ease-in-out infinite alternate;
  z-index: 0;
}
@keyframes aurora-drift {
  from { transform: translateX(-3%) rotate(-1deg); }
  to   { transform: translateX(3%) rotate(1deg); }
}
main {
  position: relative;
  z-index: 1;
  max-width: 560px;
  width: 100%;
  text-align: center;
  display: grid;
  gap: 1rem;
  justify-items: center;
}
#hero-3d {
  width: min(420px, 88vw);
  height: min(420px, 88vw);
  display: none;
}
#hero-3d.ready {
  display: block;
  filter: drop-shadow(0 0 40px rgba(86, 185, 240, 0.45)) drop-shadow(0 18px 30px rgba(0, 0, 0, 0.6));
}
#hero-3d canvas { width: 100% !important; height: 100% !important; display: block; }
#hero {
  width: min(340px, 70vw);
  height: auto;
  filter: drop-shadow(0 0 40px rgba(86, 185, 240, 0.45)) drop-shadow(0 18px 30px rgba(0, 0, 0, 0.6));
  animation: hover-float 5s ease-in-out infinite;
}
@keyframes hover-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}
h1 {
  margin: 0;
  font-family: "Archivo Black", system-ui, sans-serif;
  font-size: clamp(3.2rem, 12vw, 5.5rem);
  letter-spacing: 0.08em;
  line-height: 1;
  text-shadow: 0 0 30px rgba(120, 200, 255, 0.25);
}
h1 .slam {
  display: inline-block;
  background: linear-gradient(180deg, #ffffff 15%, var(--ice-300) 55%, var(--ice-500) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  opacity: 0;
  animation: slam 0.45s cubic-bezier(0.3, 0.9, 0.4, 1) both;
}
@keyframes slam {
  0%   { opacity: 0; transform: translateY(-1.4em) scale(2.4); }
  55%  { opacity: 1; transform: translateY(0.08em) scale(0.94, 1.08); }
  72%  { transform: translateY(0) scale(1.12, 0.86); }
  86%  { transform: scale(0.97, 1.04); }
  100% { opacity: 1; transform: none; }
}
.rise {
  opacity: 0;
  animation: rise 0.7s cubic-bezier(0.2, 0.7, 0.3, 1) both;
}
@keyframes rise {
  from { opacity: 0; transform: translateY(22px); }
  to   { opacity: 1; transform: translateY(0); }
}
#tagline {
  margin: 0;
  font-weight: 600;
  font-size: clamp(0.95rem, 3.4vw, 1.25rem);
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--ice-300);
  text-shadow: 0 0 14px rgba(120, 200, 255, 0.5);
}
#coin-ticker {
  margin: 0;
  font-size: 1.15rem;
  color: rgba(234, 247, 255, 0.65);
  letter-spacing: 0.12em;
}
#ca-block {
  display: flex;
  gap: 0.6rem;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.1rem;
  border-radius: 0.9rem;
  background: rgba(168, 220, 255, 0.07);
  border: 1px solid rgba(168, 220, 255, 0.22);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08), 0 8px 30px rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(6px);
}
#ca-label {
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--ice-300);
}
#ca { font-family: ui-monospace, monospace; word-break: break-all; }
#ca-copy {
  background: linear-gradient(180deg, var(--ice-100), var(--ice-300));
  color: var(--deep-900);
  border: 0;
  padding: 0.45rem 0.9rem;
  border-radius: 0.5rem;
  cursor: pointer;
  font-weight: 600;
  font-family: inherit;
}
#ca-copy:disabled { opacity: 0.4; cursor: not-allowed; }
#socials { display: flex; gap: 0.75rem; justify-content: center; flex-wrap: wrap; }
#socials a {
  display: inline-grid;
  place-items: center;
  width: 46px;
  height: 46px;
  background: rgba(168, 220, 255, 0.08);
  border: 1px solid rgba(168, 220, 255, 0.22);
  border-radius: 50%;
  color: var(--ice-100);
  text-decoration: none;
  transition: background 0.15s, transform 0.15s;
}
#socials a:hover { background: rgba(168, 220, 255, 0.2); transform: translateY(-2px); }
#socials svg { width: 20px; height: 20px; fill: currentColor; }
#socials img { width: 20px; height: 20px; display: block; }

/* --- freeze layers --- */
#freeze-blur {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 2;
  backdrop-filter: blur(0px);
  -webkit-backdrop-filter: blur(0px);
  mask-image: radial-gradient(ellipse 70% 60% at 50% 45%, transparent 30%, black 90%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 45%, transparent 30%, black 90%);
}
#frost-vignette {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 3;
  opacity: 0;
  box-shadow:
    inset 0 0 120px 30px rgba(214, 240, 255, 0.55),
    inset 0 0 300px 80px rgba(140, 205, 250, 0.3);
  transition: opacity 0.8s linear;
}
#frost {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 4;
}
#frost-hint {
  position: fixed;
  left: 50%;
  bottom: 1.2rem;
  transform: translateX(-50%);
  z-index: 5;
  pointer-events: none;
  margin: 0;
  font-size: 0.85rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ice-300);
  text-shadow: 0 0 12px rgba(120, 200, 255, 0.8);
  opacity: 0;
  transition: opacity 1.2s;
}
#frost-hint.visible { opacity: 0.9; }