html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  width: 100%;
  font-family: 'Inter', sans-serif;
  background: linear-gradient(135deg, #0d0d0d 0%, #111827 40%, #1f2937 100%);
  color: #f9fafb;
  line-height: 1.6;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 40px 20px;
  text-align: center;
}

.logo-icon {
  filter: drop-shadow(0 0 6px rgba(160, 233, 255, 0.3));
  transition: transform 0.3s ease, filter 0.3s ease;
}

.logo-icon:hover {
  transform: scale(1.1) rotate(3deg);
  /*filter: drop-shadow(0 0 12px rgba(160, 233, 255, 0.6));*/
}

.header-title {
  font-size: 3.5rem;
  font-weight: 800;
  background: linear-gradient(90deg, #a0e9ff, #4795A4, #a0e9ff);
  background-size: 200%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: shimmer 3s infinite linear;
}

.tagline {
  font-size: 1.25rem;
  opacity: 0.9;
  margin: 1.5rem 0;
  max-width: 600px;
}

.subtext {
  font-style: italic;
  opacity: 0.8;
  margin-bottom: 2rem;
}

.btn {
  background: #f9fafb;
  color: #1f2937;
  padding: 12px 28px;
  font-weight: 600;
  border: none;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.3s ease, transform 0.2s ease;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.btn:hover {
  background: #e5e7eb;
  transform: translateY(-2px);
}

.waitlist input[type="email"] {
  padding: 12px;
  font-size: 1rem;
  border-radius: 999px;
  border: 1px solid #374151;
  width: 100%;
  max-width: 320px;
  margin-bottom: 1rem;
  background: #1f2937;
  color: #f9fafb;
  transition: box-shadow 0.3s ease, border-color 0.3s ease;
}

.waitlist input[type="email"]:hover {
  border-color: #818cf8;
  box-shadow: 0 0 0 3px rgba(129, 140, 248, 0.2);
}

.waitlist input[type="email"]:focus {
  border-color: transparent;
  box-shadow: 0 0 0 3px rgba(129, 140, 248, 0.5);
}

.waitlist input::placeholder {
  color: #9ca3af;
}

footer {
  text-align: center;
  padding: 20px;
  background: transparent;
  font-size: 0.9rem;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

a {
  color: #818cf8;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.fade-in {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.8s ease-out forwards;
}

@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: none;
  }
}

.delay-1 { animation-delay: 0.3s; }
.delay-2 { animation-delay: 0.6s; }
.delay-3 { animation-delay: 0.9s; }

@keyframes shimmer {
  0% { background-position: 0%; }
  100% { background-position: 200%; }
}

@media (max-width: 768px) {
  .header-title {
    flex-direction: column;
    font-size: 2.5rem;
  }

  .logo-icon {
    margin-bottom: 10px;
    margin-right: 0;
  }

  .tagline {
    font-size: 1.1rem;
    margin: 1rem 0;
  }
}