:root {
  --bg: #0d0f14;
  --panel: rgba(20, 24, 34, 0.7);
  --line: rgba(255, 255, 255, 0.18);
  --text: #f6f7fb;
  --muted: #b3b8c8;
  --accent: #e7c38b;
  --x: 50%;
  --y: 50%;
  --reveal-size: 170px;
}

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

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  overflow: hidden;
  background:
    radial-gradient(circle at 80% 18%, rgba(220, 186, 133, 0.25), transparent 40%),
    radial-gradient(circle at 16% 92%, rgba(133, 175, 221, 0.18), transparent 44%),
    var(--bg);
  font-family: "Manrope", sans-serif;
  color: var(--text);
}

.ambient {
  position: fixed;
  filter: blur(65px);
  opacity: 0.45;
  pointer-events: none;
}

.ambient-one {
  width: 22rem;
  height: 22rem;
  top: -6rem;
  right: -4rem;
  background: #d5a96e;
  animation: drift 9s ease-in-out infinite;
}

.ambient-two {
  width: 20rem;
  height: 20rem;
  bottom: -5rem;
  left: -4rem;
  background: #6f8fb5;
  animation: drift 11s ease-in-out infinite reverse;
}

.reveal-stage {
  position: relative;
  width: min(92vw, 44rem);
  animation: reveal 900ms cubic-bezier(0.22, 1, 0.36, 1);
}

.shell {
  width: 100%;
  padding: 6.5rem 2rem;
  border: 1px solid var(--line);
  border-radius: 1.2rem;
  text-align: center;
  backdrop-filter: blur(10px);
  display: grid;
  place-items: center;
}

.shell-base {
  background:
    radial-gradient(circle at 70% 20%, rgba(229, 197, 145, 0.27), transparent 42%),
    linear-gradient(130deg, rgba(40, 52, 76, 0.84), rgba(21, 28, 39, 0.83));
  border-color: rgba(202, 176, 135, 0.42);
  box-shadow: 0 30px 70px rgba(8, 10, 16, 0.55);
}

.shell-top {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(130deg, rgba(255, 255, 255, 0.09), rgba(255, 255, 255, 0.01)),
    var(--panel);
  pointer-events: none;
  -webkit-mask-image: radial-gradient(
    circle var(--reveal-size) at var(--x) var(--y),
    transparent 0,
    transparent 36%,
    rgba(0, 0, 0, 0.95) 62%,
    #000 100%
  );
  mask-image: radial-gradient(
    circle var(--reveal-size) at var(--x) var(--y),
    transparent 0,
    transparent 36%,
    rgba(0, 0, 0, 0.95) 62%,
    #000 100%
  );
}

h1 {
  margin: 0;
  font-family: "Playfair Display", serif;
  font-weight: 600;
  font-size: clamp(2.1rem, 7vw, 4rem);
  line-height: 1.06;
}

@keyframes reveal {
  from {
    transform: translateY(15px) scale(0.99);
    opacity: 0;
  }
  to {
    transform: translateY(0) scale(1);
    opacity: 1;
  }
}

@keyframes drift {
  0%,
  100% {
    transform: translate(0, 0);
  }
  50% {
    transform: translate(20px, -16px);
  }
}

@media (max-width: 640px) {
  .shell {
    padding: 4.2rem 1.3rem;
  }

  :root {
    --reveal-size: 140px;
  }
}

@media (hover: none), (pointer: coarse) {
  .shell-top {
    -webkit-mask-image: none;
    mask-image: none;
    opacity: 0.75;
  }
}