:root{
  --fg: rgba(255,255,255,0.92);
  --muted: rgba(255,255,255,0.78);
}

*{ box-sizing: border-box; }

html, body{
  height: 100%;
}

body{
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--fg);
  display: grid;
  place-items: center;
  padding: 24px;

  /* Background image (with a subtle dark overlay for readability) */
  background:
    radial-gradient(1200px 600px at 50% 20%, rgba(0,0,0,0.22), rgba(0,0,0,0.80)),
    url("background.webp") center / cover no-repeat fixed;
}

.card{
  width: min(520px, 100%);
  padding: 28px 24px;

  /* Liquid glass base */
  position: relative;
  border-radius: 20px;
  isolation: isolate;

  border: 1px solid rgba(255, 255, 255, 0.30);
  background: rgba(255, 255, 255, 0.02);
  box-shadow: 0px 6px 24px rgba(0, 0, 0, 0.22);
  backdrop-filter: blur(1px);
  -webkit-backdrop-filter: blur(1px);
}

.card::before{
  /* Inner shadow + subtle tint */
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  border-radius: 20px;

  background: rgba(255, 255, 255, 0.05);
  box-shadow:
    inset 0 0 20px -5px rgba(255, 255, 255, 0.60),
    inset 0 1px 0 rgba(255, 255, 255, 0.35);
}

.card::after{
  /* Backdrop blur + optional distortion for "liquid" feel */
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  border-radius: 28px;

  background: rgba(255, 255, 255, 0.01);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  filter: url(#glass-distortion);
  opacity: 0.98;
}

.card > *{
  position: relative;
  z-index: 1;
}

h1{
  margin: 0 0 10px 0;
  font-size: 42px;
  letter-spacing: -0.02em;
}

p{
  margin: 8px 0;
  line-height: 1.55;
  font-size: 16px;
}

.muted{
  color: var(--muted);
}