@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@700&family=Inter:wght@400;700&display=swap');

:root {
  --bg-main: #10131a;
  --bg-glow: #0a0c13;
  --accent: #43e8d8;
  --accent-glow: #43e8d8cc;
  --text-main: #eaf7fa;
  --text-muted: #7a8ca3;
  --btn-bg: linear-gradient(90deg, #43e8d8 0%, #2b6cb0 100%);
  --btn-shadow: 0 4px 24px 0 #43e8d880;
}

html, body {
  height: 100%;
  margin: 0;
  padding: 0;
  background: var(--bg-main);
  color: var(--text-main);
  font-family: 'Inter', Arial, sans-serif;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

.bg-glow {
  position: fixed;
  top: -20vh;
  left: -20vw;
  width: 140vw;
  height: 140vh;
  z-index: 0;
  pointer-events: none;
  background: radial-gradient(circle at 60% 30%, var(--accent-glow) 0%, transparent 70%);
  filter: blur(80px) brightness(0.7);
  opacity: 0.7;
}

.container {
  position: relative;
  z-index: 1;
  max-width: 480px;
  margin: 0 auto;
  padding: 64px 16px 32px 16px;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  justify-content: center;
  align-items: center;
}

header {
  text-align: center;
  margin-bottom: 40px;
}

.brand {
  font-family: 'Orbitron', 'Inter', Arial, sans-serif;
  font-size: 2.8rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--accent);
  text-shadow: 0 0 16px var(--accent-glow), 0 2px 12px #000a;
  margin-bottom: 0.4em;
}

.ai-glow {
  color: #fff;
  background: var(--btn-bg);
  border-radius: 8px;
  padding: 0 0.25em;
  box-shadow: 0 0 16px var(--accent-glow);
  text-shadow: 0 0 8px var(--accent-glow);
}

.tagline {
  font-size: 1.2rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  margin: 0;
}

.cta-section {
  text-align: center;
  margin: 40px 0 32px 0;
}

.mystery-text {
  font-size: 1.1rem;
  color: var(--text-main);
  margin-bottom: 2em;
  opacity: 0.93;
}

.cta-btn {
  display: inline-block;
  font-family: 'Orbitron', Arial, sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  color: #10131a;
  background: var(--btn-bg);
  border: none;
  border-radius: 32px;
  padding: 0.85em 2.2em;
  box-shadow: var(--btn-shadow);
  text-decoration: none;
  letter-spacing: 0.04em;
  transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
  cursor: pointer;
  outline: none;
}
.cta-btn:hover, .cta-btn:focus {
  background: linear-gradient(90deg, #2b6cb0 0%, #43e8d8 100%);
  transform: translateY(-2px) scale(1.04);
  box-shadow: 0 8px 32px 0 #43e8d8cc;
}

footer {
  margin-top: auto;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.95rem;
  opacity: 0.7;
  letter-spacing: 0.03em;
}

.signup-form {
  width: 100%;
  max-width: 400px;
  margin: 0 auto;
}

.signup-form input[type="email"] {
  width: 100%;
  padding: 0.8rem;
  margin-bottom: 1rem;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(67, 232, 216, 0.3);
  border-radius: 4px;
  color: #eaf7fa;
  font-family: 'Inter', Arial, sans-serif;
}

.signup-form input[type="email"]::placeholder {
  color: rgba(122, 140, 163, 0.7);
}

.signup-form input[type="email"]:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 8px rgba(67, 232, 216, 0.5);
}

.form-status {
  margin-top: 1rem;
  font-size: 0.9rem;
  color: var(--accent);
  min-height: 1.5em;
  text-align: center;
}

@media (max-width: 600px) {
  .container {
    padding: 32px 6vw 16px 6vw;
  }
  .brand {
    font-size: 2rem;
  }
}
.signup-form {
  margin: 2rem auto;
  max-width: 400px;
}

.signup-form input[type="email"] {
  width: 100%;
  padding: 0.8rem;
  margin-bottom: 1rem;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(67, 232, 216, 0.3);
  border-radius: 4px;
  color: #eaf7fa;
  font-family: 'Inter', Arial, sans-serif;
}

.signup-form input[type="email"]::placeholder {
  color: rgba(122, 140, 163, 0.7);
}

.signup-form input[type="email"]:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 8px rgba(67, 232, 216, 0.5);
}

.form-status {
  margin-top: 1rem;
  font-size: 0.9rem;
  color: var(--accent);
  min-height: 1.5em;
}