* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Inter', sans-serif;
}

body {
  min-height: 100vh;
  background: #0f1020;
  overflow: hidden;
  color: #ffffff;
}

/* Animated Gradient Background */
.background {
  position: fixed;
  inset: 0;
  background:
    radial-gradient(circle at 10% 20%, #5f9cff, transparent 40%),
    radial-gradient(circle at 90% 80%, #9b5cff, transparent 40%),
    linear-gradient(120deg, #0f1020, #15162f);
  animation: moveBg 10s ease-in-out infinite alternate;
  z-index: -1;
}

@keyframes moveBg {
  from { filter: hue-rotate(0deg); }
  to { filter: hue-rotate(20deg); }
}

.container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.card {
  width: 100%;
  max-width: 420px;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(20px);
  border-radius: 20px;
  padding: 32px 26px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.45);
  text-align: center;
  animation: fadeUp 1s ease forwards;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(25px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.badge {
  display: inline-block;
  padding: 8px 14px;
  border-radius: 50px;
  background: linear-gradient(90deg, #5f9cff, #9b5cff);
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 20px;
}

h1 {
  font-size: 42px;
  font-weight: 800;
  letter-spacing: -1px;
}

h1 span {
  color: #9b5cff;
}

.subtitle {
  font-size: 15px;
  line-height: 1.6;
  color: #d6d6ff;
  margin: 16px 0 24px;
}

.features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-bottom: 26px;
}

.features div {
  background: rgba(255, 255, 255, 0.08);
  padding: 12px;
  border-radius: 12px;
  font-size: 14px;
  transition: transform 0.3s ease, background 0.3s ease;
}

.features div:hover {
  transform: translateY(-4px);
  background: rgba(255, 255, 255, 0.15);
}

.note {
  font-size: 14px;
  color: #cfcfff;
  margin-bottom: 24px;
}

footer {
  font-size: 12px;
  color: #aaa;
}

/* Desktop Enhancements */
@media (min-width: 768px) {
  .card {
    max-width: 520px;
    padding: 40px;
  }

  h1 {
    font-size: 48px;
  }
}