:root {
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
  --bg-color: #000000;
  --text-color: #f5f5f7;
  --accent-color: #0a84ff;
  --secondary-text: #86868b;
  --card-bg: #1c1c1e;
  --border-color: #38383a;
  --max-width: 980px;
}

body {
  margin: 0;
  font-family: var(--font-family);
  background-color: var(--bg-color);
  color: var(--text-color);
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
}

* {
  box-sizing: border-box;
}

a {
  color: var(--accent-color);
  text-decoration: none;
  transition: opacity 0.2s;
}

a:hover {
  opacity: 0.8;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0;
  font-weight: 600;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  margin-bottom: 40px;
  backdrop-filter: saturate(180%) blur(20px);
  position: sticky;
  top: 0;
  z-index: 100;
}

nav .logo {
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--text-color);
}

nav .links a {
  margin-left: 20px;
  color: var(--secondary-text);
  font-size: 0.9rem;
}

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

main {
  flex: 1;
}

.hero {
  text-align: center;
  padding: 80px 0;
}

.hero h1 {
  font-size: 3.5rem;
  line-height: 1.1;
  background: linear-gradient(135deg, #fff 0%, #86868b 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 20px;
}

.hero p {
  font-size: 1.5rem;
  color: var(--secondary-text);
  max-width: 600px;
  margin: 0 auto 40px;
}

.cta-button {
  display: inline-block;
  background-color: var(--accent-color);
  color: white;
  padding: 12px 24px;
  border-radius: 980px;
  font-weight: 600;
  font-size: 1.1rem;
}

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 40px;
  padding: 60px 0;
}

.feature-card {
  background: var(--card-bg);
  padding: 30px;
  border-radius: 20px;
  border: 1px solid var(--border-color);
}

.feature-card h3 {
  margin-bottom: 15px;
  font-size: 1.3rem;
}

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

.privacy-content {
  padding: 40px 0;
  max-width: 800px;
  margin: 0 auto;
}

.privacy-content h1 {
  font-size: 2.5rem;
  margin-bottom: 40px;
}

.privacy-content h2 {
  font-size: 1.8rem;
  margin-top: 40px;
  margin-bottom: 20px;
}

.privacy-content h3 {
  font-size: 1.4rem;
  margin-top: 30px;
  margin-bottom: 15px;
}

.privacy-content p,
.privacy-content ul {
  color: var(--secondary-text);
  margin-bottom: 20px;
  font-size: 1.1rem;
}

.privacy-content ul {
  padding-left: 20px;
}

.privacy-content li {
  margin-bottom: 10px;
}

footer {
  text-align: center;
  padding: 60px 0;
  color: var(--secondary-text);
  font-size: 0.9rem;
  border-top: 1px solid var(--border-color);
  margin-top: 60px;
}