body {
  --color1: #36346E;
  --color2: #c8a2ff;
  font-family: 'Quicksand', sans-serif;
  margin: 0;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color1), var(--color2));
  background-size: 200% 200%;
  animation: gradientShift 12s ease infinite alternate;
  overflow: hidden;
  color: #fff;
}

/* wave background layers */
.wave {
  position: fixed;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 20%, transparent 20%) repeat;
  background-size: 50% 50%;
  animation: waveMove 18s linear infinite;
  z-index: 0;
  opacity: 0.5;
  filter: blur(2px);
}

.wave.wave2 {
  animation-duration: 30s;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.05) 20%, transparent 20%) repeat;
  background-size: 60% 60%;
  opacity: 0.4;
  filter: blur(3px);
}

@keyframes waveMove {
  0% { transform: translateX(0) translateY(0); }
  50% { transform: translateX(80px) translateY(40px); }
  100% { transform: translateX(0) translateY(0); }
}

@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  100% { background-position: 100% 50%; }
}

/* main layout */
.landing-container {
  position: relative;
  z-index: 2;
  text-align: center;
  backdrop-filter: blur(10px);
  padding: 3rem 2rem;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
  animation: fadeInUp 1.2s ease forwards;
  width: 90%;
  max-width: 500px;
}

.landing-title {
  font-size: 5rem;
  font-weight: 400;
  margin: 0;
  text-shadow: 0 0 10px #fff, 0 0 40px #c8a2ff;
  animation: subtleZoom 5s ease-in-out infinite;
}

.landing-subtitle {
  font-size: 1.6rem;
  margin-top: 0.5rem;
  color: #e0f7fa;
  text-shadow: 0 0 6px #fff, 0 0 15px #fff;
}

/* form */
.waitlist-card {
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.waitlist-card input {
  padding: 0.9rem 1rem;
  border-radius: 12px;
  border: none;
  background: rgba(255, 255, 255, 0.15);
  color: white;
  font-size: 1rem;
  backdrop-filter: blur(15px);
  outline: none;
}

.waitlist-card input::placeholder {
  color: rgba(255, 255, 255, 0.6);
}

.waitlist-card button {
  padding: 0.9rem;
  border-radius: 12px;
  border: none;
  background: linear-gradient(135deg, #8ed0ff, #c8a2ff);
  color: #fff;
  font-weight: 600;
  cursor: pointer;
  font-size: 1rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.waitlist-card button:hover {
  transform: scale(1.05);
  box-shadow: 0 0 20px #c8a2ff, 0 0 40px #fff;
}

.response-message {
  margin-top: 1.5rem;
  font-size: 1.2rem;
  color: #ffd6ff;
  text-shadow: 0 0 10px #c8a2ff;
  min-height: 24px;
}

/* Animations */
@keyframes subtleZoom {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.03); }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.mute-btn {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 999;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(15px);
  border: none;
  border-radius: 50%;
  width: 50px;
  height: 50px;
  font-size: 1rem;
  cursor: pointer;
  color: #fff;
  box-shadow: 0 0 10px rgba(200, 162, 255, 0.7);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.mute-btn:hover {
  transform: scale(1.2);
  box-shadow: 0 0 10px rgba(200, 162, 255, 0.9);
}