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

:root {
  --purple-start: #667EEA;
  --purple-end: #764BA2;
  --green: #95BF47;
  --dark: #1A1A1A;
  --dark-light: #2A2A2A;
  --gray: #888;
  --white: #FFFFFF;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--dark);
  color: var(--white);
  line-height: 1.6;
  height: 100dvh;
  overflow: hidden;
}

main {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.hero {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 20px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo-icon {
  font-size: 28px;
}

.logo-text {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

h1 {
  font-size: clamp(2rem, 7vw, 3.5rem);
  font-weight: 800;
  line-height: 1.1;
}

.gradient-text {
  background: linear-gradient(135deg, var(--purple-start), var(--purple-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.tagline {
  font-size: 1.1rem;
  color: var(--gray);
  max-width: 450px;
}

.video-container {
  width: 100%;
  max-width: 600px;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 16px 48px rgba(102, 126, 234, 0.3);
}

.video-container video {
  width: 100%;
  display: block;
}

#waitlist-form {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
  width: 100%;
  max-width: 450px;
}

#waitlist-form input {
  flex: 1;
  min-width: 220px;
  padding: 14px 18px;
  font-size: 1rem;
  border: 2px solid #333;
  border-radius: 8px;
  background: var(--dark-light);
  color: var(--white);
  outline: none;
  transition: border-color 0.2s;
}

#waitlist-form input:focus {
  border-color: var(--purple-start);
}

#waitlist-form button {
  padding: 14px 28px;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--purple-start), var(--purple-end));
  color: var(--white);
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
}

#waitlist-form button:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(102, 126, 234, 0.4);
}

#waitlist-form button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.form-message {
  font-size: 0.9rem;
  min-height: 1.4em;
}

.form-message.success {
  color: var(--green);
}

.form-message.error {
  color: #ef4444;
}

footer {
  padding: 16px 0;
  text-align: center;
  color: var(--gray);
  font-size: 0.8rem;
  flex-shrink: 0;
}

@media (max-width: 500px) {
  .hero {
    gap: 16px;
  }

  h1 {
    font-size: 1.75rem;
  }

  .tagline {
    font-size: 0.95rem;
  }

  .video-container {
    max-width: 100%;
  }

  #waitlist-form {
    flex-direction: column;
  }

  #waitlist-form input,
  #waitlist-form button {
    width: 100%;
    padding: 12px 16px;
  }
}