:root {
  --pink: #FF6699;
  --pink-dark: #E55A8A;
  --bg: #FFFFFF;
  --bg-alt: #F5F5F7;
  --text: #1D1D1F;
  --text-secondary: #6E6E73;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #000000;
    --bg-alt: #1C1C1E;
    --text: #F5F5F7;
    --text-secondary: #A1A1A6;
  }
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

header {
  position: fixed;
  top: 0;
  width: 100%;
  background: var(--bg);
  border-bottom: 1px solid var(--bg-alt);
  z-index: 100;
}

nav {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-weight: 600;
  font-size: 1.25rem;
}

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

nav a {
  color: var(--text);
  text-decoration: none;
}

nav a:hover {
  color: var(--pink);
}

main {
  padding-top: 60px;
}

.hero {
  text-align: center;
  padding: 6rem 2rem;
  background: var(--bg-alt);
}

.hero h1 {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 2rem;
}

.cta {
  display: inline-block;
  background: var(--pink);
  color: white;
  padding: 1rem 2rem;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 600;
  transition: background 0.2s;
}

.cta:hover {
  background: var(--pink-dark);
}

.features {
  padding: 4rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.features h2 {
  text-align: center;
  font-size: 2rem;
  margin-bottom: 3rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.feature {
  background: var(--bg-alt);
  padding: 2rem;
  border-radius: 16px;
}

.feature .icon {
  font-size: 2rem;
  display: block;
  margin-bottom: 1rem;
}

.feature h3 {
  margin-bottom: 0.5rem;
}

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

.download {
  text-align: center;
  padding: 4rem 2rem;
  background: var(--bg-alt);
}

.download h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.download p {
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

footer {
  padding: 2rem;
  text-align: center;
  border-top: 1px solid var(--bg-alt);
}

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

footer nav {
  justify-content: center;
  gap: 2rem;
}

footer a {
  color: var(--text-secondary);
  text-decoration: none;
}

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

.privacy {
  max-width: 800px;
  margin: 0 auto;
  padding: 4rem 2rem;
}

.privacy h1 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.privacy .updated {
  color: var(--text-secondary);
  margin-bottom: 3rem;
}

.privacy section {
  margin-bottom: 2.5rem;
}

.privacy h2 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--pink);
}

.privacy p {
  margin-bottom: 1rem;
}

.privacy ul {
  margin-left: 1.5rem;
  margin-bottom: 1rem;
}

.privacy li {
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
}

.privacy a {
  color: var(--pink);
}

.privacy .summary {
  background: var(--bg-alt);
  padding: 2rem;
  border-radius: 16px;
  border-left: 4px solid var(--pink);
}

.privacy .summary p {
  margin-bottom: 0;
  font-size: 1.1rem;
}

@media (max-width: 600px) {
  .hero h1 {
    font-size: 2rem;
  }
  
  nav ul {
    gap: 1rem;
  }
}