/* Hero backdrop: fixed canvas (phase 3: Three.js) over a transform-animated gradient layer */
#hero {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}
.hero-bg {
  position: fixed;
  inset: -50%;
  z-index: -2;
  background:
    radial-gradient(60% 50% at 20% 20%, rgba(125, 211, 252, 0.14), transparent 70%),
    radial-gradient(50% 50% at 80% 70%, rgba(196, 181, 253, 0.12), transparent 70%),
    var(--bg);
  animation: drift 24s var(--ease) infinite alternate;
  will-change: transform;
}
@keyframes drift {
  from { transform: translate3d(-10%, -10%, 0); }
  to   { transform: translate3d(10%, 10%, 0); }
}

/* Mobile-first: fixed left rail, content offset to the right */
.hero, .content {
  padding-left: calc(var(--rail-w) + var(--space-3) + env(safe-area-inset-left));
  padding-right: calc(var(--space-3) + env(safe-area-inset-right));
}

.hero {
  padding-top: calc(var(--space-5) + env(safe-area-inset-top));
  padding-bottom: var(--space-4);
  display: grid;
  gap: var(--space-4);
}

.identity {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.monogram {
  flex: none;
  width: 3rem;
  height: 3rem;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--bg-elev);
  font-family: var(--font-mono);
  font-weight: 600;
  letter-spacing: 0.05em;
}
.headline { color: var(--fg-muted); font-size: 0.95rem; }
.location { color: var(--fg-muted); font-size: 0.85rem; }

/* Age counter */
.age {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}
.age__unit { display: flex; flex-direction: column; align-items: flex-start; }
.age__num { display: flex; align-items: baseline; }
.age__value {
  font-size: clamp(1.75rem, 7vw, 3.5rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
}
.age__fraction {
  font-size: clamp(0.9rem, 3vw, 1.5rem);
  color: var(--accent);
}
.age__label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--fg-muted);
}

.content {
  padding-bottom: calc(var(--space-5) + env(safe-area-inset-bottom));
}

/* Desktop: horizontal rail on top, content full width */
@media (min-width: 900px) {
  .hero, .content {
    padding-left: calc(var(--space-5) + env(safe-area-inset-left));
    padding-right: calc(var(--space-5) + env(safe-area-inset-right));
    max-width: 64rem;
    margin-inline: auto;
  }
  .hero { padding-top: calc(var(--rail-h) + var(--space-5) + env(safe-area-inset-top)); }
}