* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  font-family: 'Montserrat', sans-serif;
  color: #ffffff;
  background-color: #363330;
  overflow: hidden;
  position: relative;
  perspective: 1000px;
}

.card {
  position: relative;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 4rem 4rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  box-shadow: 
    0 32px 64px rgba(0, 0, 0, 0.12),
    0 16px 32px rgba(0, 0, 0, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.2),
    inset 0 -1px 0 rgba(255, 255, 255, 0.1);
  overflow: hidden;
  transition: all 0.6s cubic-bezier(0.23, 1, 0.32, 1);
  transform: scale(1.03);
  position: relative;
  will-change: transform;
  z-index: 1;
  transform-style: preserve-3d;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 24px;
  padding: 2px;
  background: 
    linear-gradient(135deg, 
      rgba(255, 255, 255, 0.4) 0%,
      rgba(255, 255, 255, 0.1) 25%,
      rgba(255, 255, 255, 0.05) 50%,
      rgba(255, 255, 255, 0.1) 75%,
      rgba(255, 255, 255, 0.4) 100%
    );
  -webkit-mask:
    linear-gradient(#fff 0 0) content-box,
    linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  z-index: 1;
}

.card:hover {
  background: rgba(255, 255, 255, 0.12);
  box-shadow: 
    0 48px 96px rgba(0, 0, 0, 0.2),
    0 24px 48px rgba(0, 0, 0, 0.15),
    inset 0 2px 0 rgba(255, 255, 255, 0.4),
    inset 0 -2px 0 rgba(255, 255, 255, 0.2);
  transform: scale(1.05) translateZ(0);
  border-color: rgba(255, 255, 255, 0.35);
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 18px;
  padding: 2px;
  background:
    radial-gradient(
      circle at var(--bg-x, 50%) var(--bg-y, 50%),
      rgba(153,153,153,0.8),
      rgba(153,153,153,0.6) 10%,
      rgba(153,153,153,0.4) 20%,
      transparent 70%
    );
  -webkit-mask:
    linear-gradient(#fff 0 0) content-box,
    linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

h1 {
  font-size: clamp(3rem, 6vw, 5rem);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: color 250ms ease, transform 120ms ease-out;
  color: #d0d0d0;
}

h1.bump { transform: scale(1.03); }

button {
  margin-top: 2rem;
  margin-bottom: 0.8rem;
  padding: 0.8rem 2.2rem;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  cursor: pointer;
  border: none;
  border-radius: 999px;
  background: #111;
  color: #fff;
  transition: transform 140ms ease, filter 140ms ease;
}

button:hover {
  transform: scale(1.05);
  filter: brightness(1.1);
}

button:active {
  transform: scale(0.97);
  filter: brightness(0.9);
}

@media (max-width: 480px) {
  .card { padding: 2rem 1.6rem; margin: 0 1rem; }
}