:root{
  --bg0:#05060a;
  --bg1:#070913;
  --card: rgba(255,255,255,.06);
  --stroke: rgba(255,255,255,.10);
  --stroke-2: rgba(255,255,255,.06);
  --text: rgba(255,255,255,.92);
  --muted: rgba(255,255,255,.55);

  --glow1: rgba(130, 87, 255, .20);
  --glow2: rgba(  0, 255, 255, .14);
  --glow3: rgba(255,  40, 180, .10);

  --shadow: 0 24px 90px rgba(0,0,0,.65);
  --shadow2: 0 10px 30px rgba(0,0,0,.55);
  --radius: 14px;
}

*{ box-sizing: border-box; }
html,body{ height:100%; }

body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Apple Color Emoji","Segoe UI Emoji";
  color: var(--text);
  background:
    radial-gradient(1100px 700px at 50% 0%, rgba(120,120,255,.10), transparent 60%),
    radial-gradient(900px 600px at 60% 30%, rgba(0,255,255,.06), transparent 55%),
    radial-gradient(800px 600px at 40% 45%, rgba(255,40,180,.05), transparent 55%),
    linear-gradient(180deg, var(--bg1), var(--bg0));
  overflow:hidden;
}

/* subtle film/noise */
body::before{
  content:"";
  position:fixed; inset:0;
  pointer-events:none;
  background:
    radial-gradient(circle at 10% 20%, rgba(255,255,255,.06), transparent 35%),
    radial-gradient(circle at 90% 10%, rgba(255,255,255,.05), transparent 40%),
    radial-gradient(circle at 70% 90%, rgba(255,255,255,.04), transparent 45%);
  opacity:.18;
  filter: blur(30px);
}

/* glow blobs */
.glow{
  position:fixed;
  width: 680px;
  height: 680px;
  border-radius: 999px;
  filter: blur(55px);
  opacity:.9;
  pointer-events:none;
  mix-blend-mode: screen;
  transform: translate3d(0,0,0);
}

.glow-a{
  left: 50%;
  top: 10%;
  transform: translate(-70%, -30%);
  background: radial-gradient(circle at 30% 30%, var(--glow1), transparent 60%),
              radial-gradient(circle at 70% 60%, var(--glow2), transparent 55%);
  animation: driftA 10s ease-in-out infinite;
}

.glow-b{
  left: 50%;
  top: 60%;
  transform: translate(-20%, -20%);
  background: radial-gradient(circle at 30% 40%, var(--glow2), transparent 60%),
              radial-gradient(circle at 70% 60%, var(--glow3), transparent 55%);
  animation: driftB 12s ease-in-out infinite;
}

@keyframes driftA{
  0%,100%{ transform: translate(-70%, -30%) scale(1); }
  50%{ transform: translate(-62%, -26%) scale(1.04); }
}

@keyframes driftB{
  0%,100%{ transform: translate(-20%, -20%) scale(1); }
  50%{ transform: translate(-26%, -14%) scale(1.06); }
}

/* dotted grid overlay like the screenshot */
.grid{
  position:fixed; inset:0;
  pointer-events:none;
  opacity:.50;
  background-image:
    radial-gradient(rgba(255,255,255,.12) 1px, transparent 1px);
  background-size: 22px 22px;
  mask-image: radial-gradient(900px 520px at 50% 45%, rgba(0,0,0,1), rgba(0,0,0,.25) 55%, rgba(0,0,0,0) 78%);
  -webkit-mask-image: radial-gradient(900px 520px at 50% 45%, rgba(0,0,0,1), rgba(0,0,0,.25) 55%, rgba(0,0,0,0) 78%);
}

/* center stage */
.stage{
  position:relative;
  height:100%;
  width:100%;
  display:grid;
  place-items:center;
  padding: 24px;
}

/* glass card */
.card{
  width:min(720px, 92vw);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255,255,255,.07), rgba(255,255,255,.045));
  border: 1px solid var(--stroke);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  position:relative;
  transform-style: preserve-3d;
  transition: transform .18s ease, box-shadow .25s ease, border-color .25s ease;
}

/* inner lip + depth */
.card::before{
  content:"";
  position:absolute; inset:0;
  border-radius: inherit;
  padding: 1px;
  background:
    linear-gradient(135deg, rgba(255,255,255,.20), rgba(255,255,255,0) 45%),
    linear-gradient(225deg, rgba(0,255,255,.12), rgba(255,40,180,.08), rgba(255,255,255,0) 55%);
  -webkit-mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity:.55;
  pointer-events:none;
}

/* subtle corner glow */
.card::after{
  content:"";
  position:absolute; inset:-1px;
  border-radius: inherit;
  background: radial-gradient(500px 220px at 50% 0%, rgba(140,120,255,.20), transparent 60%);
  opacity:.35;
  filter: blur(10px);
  pointer-events:none;
}

.card-inner{
  position:relative;
  padding: 46px 40px;
  border-radius: inherit;
  overflow:hidden;
}

/* moving shine that follows mouse (set by JS) */
.shine{
  position:absolute;
  inset:-80px;
  background:
    radial-gradient(520px 280px at var(--mx, 50%) var(--my, 30%),
      rgba(255,255,255,.16),
      rgba(255,255,255,.05) 35%,
      transparent 65%);
  opacity: .65;
  transform: translateZ(30px);
  pointer-events:none;
  transition: opacity .25s ease;
}

/* title */
.title{
  margin:0;
  text-align:center;
  font-weight: 650;
  letter-spacing: .2px;
  font-size: 28px;
  text-shadow: 0 8px 30px rgba(0,0,0,.6);
  transform: translateZ(40px);
}

/* hover micro-interactions */
.card:hover{
  border-color: rgba(255,255,255,.14);
  box-shadow: var(--shadow), 0 0 0 1px rgba(255,255,255,.04) inset, 0 0 60px rgba(130,87,255,.10);
}

.card:hover .shine{
  opacity: .85;
}

/* float animation like “alive UI” */
.card{
  animation: floaty 6.5s ease-in-out infinite;
}
@keyframes floaty{
  0%,100%{ transform: translateY(0); }
  50%{ transform: translateY(-8px); }
}

/* accessibility: reduce motion */
@media (prefers-reduced-motion: reduce){
  .card, .glow-a, .glow-b { animation: none !important; }
  .card{ transition: none !important; }
}