/*
 * Vespene Bio — landing page styles
 */

*, *::before, *::after { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: #03131c;
  color: #e6f7ff;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.hero {
  position: relative;
  min-height: 100vh;
  width: 100%;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 20%, rgba(38, 166, 154, 0.18), transparent 55%),
    radial-gradient(ellipse at 80% 80%, rgba(79, 195, 247, 0.18), transparent 55%),
    radial-gradient(ellipse at 50% 50%, #0b2436 0%, #051620 55%, #02101a 100%);
}

.hero__molecules {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.hero__vignette {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 40%, rgba(0, 0, 0, 0.55) 100%);
  pointer-events: none;
}

.mol {
  transform-origin: center;
  animation: drift 18s ease-in-out infinite alternate;
}
.mol--a { animation-duration: 22s; }
.mol--b { animation-duration: 26s; animation-delay: -6s; }
.mol--c { animation-duration: 19s; animation-delay: -10s; }

.mol circle { animation: pulse 4.5s ease-in-out infinite; }
.mol--b circle { animation-duration: 5.5s; animation-delay: -1.2s; }
.mol--c circle { animation-duration: 3.8s; animation-delay: -2.4s; }

.helix {
  animation: glide 14s ease-in-out infinite alternate;
}

@keyframes drift {
  0%   { transform: translate3d(0, 0, 0); }
  100% { transform: translate3d(20px, -14px, 0); }
}

@keyframes pulse {
  0%, 100% { opacity: 0.55; }
  50%      { opacity: 1; }
}

@keyframes glide {
  0%   { transform: translate3d(0, 0, 0); opacity: 0.85; }
  100% { transform: translate3d(-30px, 8px, 0); opacity: 1; }
}

.hero__content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 2rem 1.5rem;
  max-width: 900px;
}

.hero__mark {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.4rem 0.85rem;
  border: 1px solid rgba(125, 249, 255, 0.25);
  border-radius: 999px;
  background: rgba(5, 25, 38, 0.45);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  font-size: 0.72rem;
  letter-spacing: 0.28em;
  color: #a7ffeb;
  text-transform: uppercase;
  margin-bottom: 1.75rem;
}

.hero__mark-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #7df9ff;
  box-shadow: 0 0 12px #7df9ff, 0 0 24px rgba(125, 249, 255, 0.6);
  animation: pulse 2.4s ease-in-out infinite;
}

.hero__title {
  font-family: "Helvetica Neue", "Inter", system-ui, sans-serif;
  font-weight: 200;
  font-size: clamp(3rem, 9vw, 7rem);
  letter-spacing: -0.02em;
  margin: 0 0 1.25rem 0;
  background: linear-gradient(180deg, #ffffff 0%, #b8e9ff 55%, #7df9ff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 0 50px rgba(125, 249, 255, 0.18);
}

.hero__subtitle {
  font-family: "Iowan Old Style", "Palatino", "Georgia", serif;
  font-style: italic;
  font-weight: 400;
  font-size: clamp(1.05rem, 2.2vw, 1.5rem);
  line-height: 1.5;
  margin: 0 auto 0.6rem;
  max-width: 500px;
  color: rgba(230, 247, 255, 0.88);
}

.hero__attribution {
  font-size: 0.85rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(167, 255, 235, 0.75);
  margin: 0;
}

@media (prefers-reduced-motion: reduce) {
  .mol, .mol circle, .helix, .hero__mark-dot { animation: none; }
}