html,
body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  width: 100vw;
  background: #0e0e0e;
  font-family: "Helvetica Neue", Arial, sans-serif;
  color: #fff;
}

body {
  position: relative;
  min-height: 100vh;
  width: 100vw;
}

#bg-animation {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
}

.container {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  width: 100vw;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem 1.5rem;
  box-sizing: border-box;
  text-align: center;
}

.logo-title-container {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: row;
  flex-wrap: wrap;
  gap: 2rem;
  margin-bottom: 1rem;
}

.logo {
  width: clamp(60px, 13vw, 120px);
  height: auto;
  max-width: 33vw;
}

.title {
  font-size: clamp(2.4rem, 14vw, 8rem);
  font-weight: bold;
  margin: 0;
  line-height: 1.02;
  letter-spacing: -0.01em;
  word-break: break-word;
}

.tagline {
  font-size: clamp(1.2rem, 7vw, 3rem);
  color: #ffffff;
  font-weight: 700;
  letter-spacing: 0.01em;
  margin: 0 0 0 0;
  text-shadow:
    0 0 18px #00baff77,
    0 0 32px #089ee855,
    0 0 2px #fff;
  transition: text-shadow 0.2s;
}

.subhead {
  position: relative;
  font-size: clamp(1.18rem, 2.7vw, 2rem);
  color: #e7f7ff;
  margin: 4rem auto 4rem auto;
  text-align: center;
  max-width: 600px;
  z-index: 1;
  display: inline-block;
}

.subhead::before {
  content: '';
  position: absolute;
  top: -10%;
  left: -5%;
  width: 110%;
  height: 120%;
  pointer-events: none;
  z-index: -1;
  background: radial-gradient(ellipse at center, rgba(0, 0, 0, 0.57) 0%, rgba(0, 0, 0, 0.36) 42%, rgba(0, 0, 0, 0.5) 90%);
  filter: blur(10px);
  border-radius: 32px;
  opacity: 0.5;
}

.tagline2 {
  font-size: clamp(1rem, 2vw, 1.4rem);
  color: #fff;
  margin-bottom: 1.2rem;
}

.signup-form {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  max-width: 350px;
  margin: 0 auto;
}

.signup-form input[type="email"] {
  padding: 11px 12px;
  border: none;
  border-radius: 5px;
  margin-bottom: 10px;
  width: 100%;
  font-size: 1rem;
  max-width: 350px;
  box-sizing: border-box;
  background-color: #fff;
  color: #333;
  transition: box-shadow 0.2s ease;
}

.signup-form input[type="email"]:focus {
  outline: none;
  box-shadow: 0 0 0 2px #95e3ff;
}

.signup-form input[type="email"]:invalid {
  box-shadow: 0 0 0 2px #000000;
}

.signup-form button {
  padding: 10px 0;
  border: none;
  border-radius: 5px;
  background-color: #95e3ff;
  color: #10141c;
  cursor: pointer;
  font-size: 1.08rem;
  font-weight: bold;
  width: 100%;
  transition: background 0.17s ease;
}

.signup-form button:hover,
.signup-form button:focus {
  background-color: #0091c2;
  outline: none;
}

.signup-form button:disabled {
  background-color: #666;
  cursor: not-allowed;
}

#thank-you {
  display: none;
  color: #00ff00;
  margin-top: 10px;
  font-size: 1.1rem;
}

.error-message {
  display: none;
  color: #ff4444;
  margin-top: 10px;
  font-size: 1rem;
}

/* Footer */
.site-footer {
  width: 100vw;
  background: #11191f;
  border-top: 1.5px solid #212e38;
  color: #aeeaff;
  padding: 1.12rem 0 1.12rem 0;
  position: relative;
  font-size: 1rem;
  z-index: 2;
}

.footer-container {
  width: 100%;
  max-width: 1220px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  padding: 0 2rem;
  box-sizing: border-box;
}

.footer-left {
  display: flex;
  align-items: center;
  gap: 1.1rem;
  flex-wrap: wrap;
}

.footer-logo img {
  border-radius: 6px;
  background: #232d35;
  padding: 2px;
}

.footer-name {
  font-weight: 700;
  letter-spacing: 0.01em;
  color: #95e3ff;
  font-size: 1.07rem;
  margin-right: 0.5em;
}

.footer-copyright {
  color: #7cb0cc;
  font-size: 0.8rem;
  margin-left: 2em;
}

.footer-right {
  display: flex;
  align-items: center;
  gap: 1.22rem;
  margin-top: 0.7rem;
  margin-bottom: 0.7rem;
}

.footer-social {
  display: flex;
  align-items: center;
  opacity: 0.85;
  transition: opacity 0.18s, transform 0.17s;
}
.footer-social:hover,
.footer-social:focus {
  opacity: 1;
  transform: scale(1.18);
}

@media (max-width: 700px) {
  .footer-container {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 0.7em;
    padding: 0 0.6em;
  }
  .footer-left {
    flex-direction: column;
    align-items: center;
    gap: 0.4em;
  }
  .footer-right {
    margin-top: 0.4rem;
    margin-bottom: 0;
    gap: 1.05rem;
  }
}

/* Loading spinner */
.spinner {
  display: none;
  width: 20px;
  height: 20px;
  border: 2px solid #f3f3f3;
  border-top: 2px solid #48f3ff;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 10px auto;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Accessibility improvements */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Focus indicators */
*:focus {
  outline: 2px solid #48f3ff;
  outline-offset: 2px;
}

@media (max-width: 700px) {
  .logo-title-container {
    flex-direction: column-reverse;
    gap: 0.8rem;
    align-items: center;
    margin-bottom: 1rem;
  }

  .logo {
    max-width: 100px;
    width: 200px;
    height: auto;
    display: block;
  }

  .title {
    font-size: clamp(1.7rem, 12vw, 4rem);
  }

  .tagline {
    font-size: clamp(1rem, 7vw, 2rem);
    margin-bottom: 1.2rem;
  }

  .signup-form input[type="email"] {
    font-size: 1rem;
    padding: 10px 8px;
  }

  .signup-form button {
    font-size: 1rem;
  }
}

/* Reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
  .tagline {
    transition: none;
  }
  
  .signup-form input[type="email"],
  .signup-form button {
    transition: none;
  }
  
  .spinner {
    animation: none;
  }
}