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

:root {
  --gradient-start: rgba(0, 77, 77, 0.92);
  --gradient-end: rgba(139, 69, 120, 0.88);
  --accent: #2dd4bf;
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.85);
}

html, body {
  min-height: 100vh;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  color: var(--text-primary);
  line-height: 1.6;
}

body {
  background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
  background-attachment: fixed;
  position: relative;
}

body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url('alexa-williams-YwBX02K60A4-unsplash.jpg');
  background-size: cover;
  background-position: center;
  z-index: -1;
  opacity: 0.3;
}

.container {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 2rem;
  max-width: 800px;
  margin: 0 auto;
}

h1 {
  font-size: clamp(2rem, 6vw, 3.5rem);
  font-weight: 700;
  font-style: italic;
  line-height: 1.15;
  margin-bottom: 1.5rem;
}

h2 {
  font-size: clamp(1.1rem, 3vw, 1.4rem);
  font-weight: 400;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

p {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 1rem;
}

.intro {
  margin-bottom: 2rem;
}

.intro p {
  font-size: 0.95rem;
  line-height: 1.7;
}

ul.features {
  list-style: none;
  margin: 1.5rem 0 2rem 0.5rem;
}

ul.features li {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
  padding-left: 0.5rem;
}

ul.features li::before {
  content: '- ';
}

/* Form styles */
.signup-form {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2rem;
}

.signup-form input[type="email"] {
  flex: 1;
  min-width: 200px;
  padding: 1rem 1.25rem;
  font-size: 1rem;
  border: none;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
  outline: none;
  transition: background 0.2s;
}

.signup-form input[type="email"]::placeholder {
  color: rgba(255, 255, 255, 0.5);
}

.signup-form input[type="email"]:focus {
  background: rgba(255, 255, 255, 0.15);
}

.signup-form button {
  padding: 1rem 2rem;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  border: none;
  border-radius: 4px;
  background: var(--accent);
  color: #0a0a0a;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
}

.signup-form button:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(45, 212, 191, 0.3);
}

/* Social links */
.social-links {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-secondary);
  text-decoration: none;
  transition: background 0.2s, color 0.2s;
}

.social-links a:hover {
  background: rgba(255, 255, 255, 0.2);
  color: var(--text-primary);
}

.social-links svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

/* Footer */
footer {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
}

footer a {
  color: rgba(255, 255, 255, 0.5);
  text-decoration: none;
}

footer a:hover {
  color: var(--text-secondary);
}

/* Navigation */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  padding: 1.5rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 100;
}

nav .logo {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text-primary);
  text-decoration: none;
}

nav .nav-links {
  display: flex;
  gap: 2rem;
}

nav .nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s;
}

nav .nav-links a:hover {
  color: var(--text-primary);
}

/* CTA Link */
.cta-link {
  display: inline-block;
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
  margin-top: 1rem;
  transition: opacity 0.2s;
}

.cta-link:hover {
  opacity: 0.8;
}

.cta-link::after {
  content: ' →';
}

/* Responsive */
@media (max-width: 600px) {
  .container {
    padding: 6rem 1.5rem 2rem;
    justify-content: flex-start;
  }

  nav {
    padding: 1rem 1.5rem;
  }

  nav .nav-links {
    gap: 1rem;
  }

  .signup-form {
    flex-direction: column;
  }

  .signup-form button {
    width: 100%;
  }
}