/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* Brand Colors from Color Scheme */
  --navy-dark: #102A43;
  --navy-mid: #243B53;
  --teal: #2BB3B1;
  --teal-dark: #239997;
  --lavender: #B8C4E0;
  --bg-light: #F4F7FA;
  --white: #FFFFFF;
  
  /* Semantic Colors */
  --primary: var(--teal);
  --primary-dark: var(--teal-dark);
  --bg-main: var(--bg-light);
  --bg-card: var(--white);
  --bg-nav: var(--navy-dark);
  --text-primary: var(--navy-dark);
  --text-secondary: #486581;
  --text-light: var(--white);
  --gradient: linear-gradient(135deg, var(--teal), var(--lavender));
}

html {
  scroll-behavior: smooth;
}

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

/* Navigation */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: var(--bg-nav);
  padding: 1rem 2rem;
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(16, 42, 67, 0.1);
}

nav .container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--teal);
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: var(--lavender);
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.3s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-light);
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-light);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Main Content */
main {
  padding-top: 80px;
  min-height: calc(100vh - 80px);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Hero Section */
.hero {
  padding: 6rem 0 4rem;
  text-align: center;
}

.hero h1 {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: var(--navy-dark);
}

.hero h1 .highlight {
  color: var(--teal);
}

.hero .subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 2.5rem;
}

.tagline {
  font-size: 1.1rem;
  color: var(--teal);
  font-style: italic;
  margin-bottom: 2rem;
}

.cta-button {
  display: inline-block;
  padding: 1rem 2.5rem;
  background: var(--navy-dark);
  color: var(--text-light);
  text-decoration: none;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1.1rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
}

.cta-button:hover {
  transform: translateY(-2px);
  background: var(--navy-mid);
  box-shadow: 0 10px 30px rgba(16, 42, 67, 0.2);
}

/* Features Section */
.features {
  padding: 4rem 0;
}

.features h2 {
  text-align: center;
  font-size: 2rem;
  margin-bottom: 3rem;
  color: var(--navy-dark);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.feature-card {
  background: var(--bg-card);
  padding: 2rem;
  border-radius: 16px;
  border: 1px solid var(--lavender);
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-5px);
  border-color: var(--teal);
  box-shadow: 0 10px 30px rgba(16, 42, 67, 0.1);
}

.feature-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.feature-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  color: var(--navy-dark);
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Page Content (Privacy, Terms, Support) */
.page-content {
  padding: 4rem 0;
}

.page-content h1 {
  font-size: 2.5rem;
  margin-bottom: 2rem;
  color: var(--navy-dark);
}

.page-content h2 {
  font-size: 1.5rem;
  margin: 2rem 0 1rem;
  color: var(--navy-mid);
}

.page-content p,
.page-content li {
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.page-content ul {
  padding-left: 1.5rem;
  margin-bottom: 1.5rem;
}

.page-content a {
  color: var(--teal);
  text-decoration: none;
}

.page-content a:hover {
  text-decoration: underline;
}

.last-updated {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  font-style: italic;
}

/* Support Page */
.support-card {
  background: var(--bg-card);
  padding: 3rem;
  border-radius: 16px;
  border: 1px solid var(--lavender);
  text-align: center;
  max-width: 500px;
  margin: 2rem auto;
  box-shadow: 0 4px 20px rgba(16, 42, 67, 0.08);
}

.support-card h2 {
  margin-top: 0;
  color: var(--navy-dark);
}

.support-card p {
  color: var(--text-secondary);
}

.email-link {
  display: inline-block;
  padding: 1rem 2rem;
  background: var(--teal);
  color: var(--text-light);
  text-decoration: none;
  border-radius: 50px;
  font-weight: 600;
  margin-top: 1rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
}

.email-link:hover {
  transform: translateY(-2px);
  background: var(--teal-dark);
  box-shadow: 0 10px 30px rgba(43, 179, 177, 0.3);
  text-decoration: none;
}

/* Footer */
footer {
  background: var(--navy-dark);
  padding: 2rem;
  margin-top: 4rem;
}

footer .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.footer-links a {
  color: var(--lavender);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.3s ease;
}

.footer-links a:hover {
  color: var(--text-light);
}

.copyright {
  color: var(--lavender);
  font-size: 0.9rem;
}

/* Mobile Responsive */
@media (max-width: 768px) {
  nav {
    padding: 1rem;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--navy-dark);
    flex-direction: column;
    padding: 1rem;
    gap: 0;
    border-top: 1px solid var(--navy-mid);
  }

  .nav-links.active {
    display: flex;
  }

  .nav-links li {
    padding: 1rem;
    border-bottom: 1px solid var(--navy-mid);
  }

  .nav-links li:last-child {
    border-bottom: none;
  }

  .mobile-menu-btn {
    display: block;
  }

  .hero {
    padding: 4rem 0 3rem;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero .subtitle {
    font-size: 1rem;
  }

  .container {
    padding: 0 1rem;
  }

  .page-content h1 {
    font-size: 1.75rem;
  }

  .page-content h2 {
    font-size: 1.25rem;
  }

  footer .container {
    flex-direction: column;
    text-align: center;
  }

  .footer-links {
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.75rem;
  }

  .cta-button {
    padding: 0.875rem 2rem;
    font-size: 1rem;
  }

  .feature-card {
    padding: 1.5rem;
  }

  .support-card {
    padding: 2rem 1.5rem;
  }
}