:root {
  --bg-0: #050506;
  --bg-1: #08080a;
  --bg-2: #0b0b0f;
  --glass: rgba(255, 255, 255, 0.08);
  --glass-deep: rgba(255, 255, 255, 0.04);
  --glass-stroke: rgba(255, 255, 255, 0.14);
  --text: #ececf0;
  --muted: #a2a2ad;
  --accent-0: #7c5cff;
  --accent-1: #00d4ff;

  /* responsive glass controls */
  --card-radius: clamp(12px, 3vw, 20px);
  --card-padding: clamp(18px, 3.5vw, 28px);
  --glass-blur: clamp(10px, 2.2vw, 18px);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--text);
  background: radial-gradient(1200px 800px at 80% -10%, #0a0a12 0%, var(--bg-0) 40%),
              radial-gradient(1000px 700px at -10% 20%, #080810 0%, var(--bg-0) 50%),
              linear-gradient(to bottom, var(--bg-0), var(--bg-1));
  overflow-x: hidden;
}

#stars {
  position: fixed;
  inset: 0; 
  width: 100%;
  height: 100%;
  z-index: -2;
  background: transparent;
}

.page {
  position: relative;
  min-height: 100dvh;
  padding: 64px 20px 40px;
}

.hero {
  text-align: center;
  padding: 96px 0 40px;
}
.hero h1 {
  margin: 0;
  font-weight: 800;
  font-size: clamp(40px, 8vw, 72px);
  letter-spacing: -0.02em;
}
.subtitle {
  margin-top: 12px;
  color: var(--muted);
  font-weight: 400;
  font-size: clamp(16px, 2.5vw, 20px);
}

.cards {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 20px;
  max-width: 1100px;
  margin: 40px auto 64px;
  padding: 0 8px;
}

.card {
  grid-column: span 12;
  position: relative;
  background: linear-gradient(180deg, var(--glass), var(--glass-deep));
  border: 1px solid var(--glass-stroke);
  backdrop-filter: blur(var(--glass-blur)) saturate(140%);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(140%);
  border-radius: calc(var(--card-radius) + var(--rx, 0px)) / calc(var(--card-radius) + var(--ry, 0px));
  padding: var(--card-padding);
  box-shadow: 0 24px 50px rgba(0,0,0,0.45), inset 0 1px 0 rgba(255,255,255,0.06);
  overflow: hidden;
  /* pointer vars removed from visual usage to avoid cursor-following sheen */
  --sx: 1;  /* scale x */
  --sy: 1;  /* scale y */
  --lift: 0px; /* translateY */
  transition: box-shadow 380ms ease, backdrop-filter 240ms ease, -webkit-backdrop-filter 240ms ease;
  will-change: transform, box-shadow, backdrop-filter;
  transform: translateY(var(--lift)) scale(var(--sx), var(--sy));
  transform-origin: 50% 50%;
}
.card::before {
  content: "";
  position: absolute;
  inset: -1px;
  background: radial-gradient(30% 18% at 12% -12%, rgba(255,255,255,0.18), transparent 62%),
              radial-gradient(35% 20% at 110% 12%, rgba(255,255,255,0.12), transparent 60%),
              linear-gradient(120deg, rgba(255,255,255,0.06), rgba(255,255,255,0.0) 40%);
  pointer-events: none;
  mix-blend-mode: screen;
  opacity: 0.78;
}
.card::after {
  content: "";
  position: absolute;
  left: -40%;
  top: -40%;
  width: 180%;
  height: 180%;
  background: radial-gradient(closest-side, rgba(255,255,255,0.08), transparent 65%);
  filter: blur(24px);
  transform: translate3d(0,0,0);
  animation: glassFloat 12s ease-in-out infinite alternate;
}

@keyframes glassFloat {
  from { transform: translate3d(0,0,0) rotate(0.001deg); }
  to { transform: translate3d(3%, -3%, 0) rotate(0.001deg); }
}

.card:hover, .card.is-hovered {
  --lift: -3px;
  box-shadow: 0 28px 70px rgba(0,0,0,0.55), inset 0 1px 0 rgba(255,255,255,0.08);
  backdrop-filter: blur(calc(var(--glass-blur) * 1.1)) saturate(180%);
  -webkit-backdrop-filter: blur(calc(var(--glass-blur) * 1.1)) saturate(180%);
}
.card.is-hovered::before { opacity: 0.98; }
.card.is-hovered::after { filter: blur(18px); animation-duration: 10s; }

/* responsive tuning */
@media (max-width: 540px) {
  .page { padding: 56px 16px 32px; }
  .hero { padding: 72px 0 32px; }
  .card::before { opacity: 0.78; }
  .card::after { filter: blur(18px); animation-duration: 14s; }
}

@media (min-width: 1024px) {
  .cards { gap: 24px; }
  .card { box-shadow: 0 28px 60px rgba(0,0,0,0.5), inset 0 1px 0 rgba(255,255,255,0.07); }
  .card::before { opacity: 0.9; }
}
.card h2 {
  margin: 0 0 6px;
  font-size: 18px;
  font-weight: 600;
  color: #fff;
}
.card p {
  margin: 0;
  color: var(--muted);
}
.card a {
  color: #ffffff;
  text-decoration: none;
  border-bottom: 1px dashed rgba(255,255,255,0.25);
  transition: color 160ms ease, border-color 160ms ease;
}
.card a:hover {
  color: var(--accent-1);
  border-bottom-color: var(--accent-1);
}

@media (min-width: 680px) {
  .card { grid-column: span 6; }
}
@media (min-width: 980px) {
  .card { grid-column: span 4; }
}

/* fade-in on scroll */
.fade-reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 800ms ease, transform 900ms cubic-bezier(.2,.7,.2,1);
  will-change: opacity, transform;
}
.fade-reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

footer {
  text-align: center;
  color: var(--muted);
  padding: 48px 0 8px;
}