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

body {
  font-family: -apple-system, system-ui, BlinkMacSystemFont, "Segoe UI",
    Roboto, Oxygen, Ubuntu, "Helvetica Neue", Arial, sans-serif;
  background-color: #0f0f11;
  color: #e4e4e7;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 80px 24px 48px;
}

/* Hero */

.hero {
  text-align: center;
  margin-bottom: 96px;
}

.app-icon {
  width: 128px;
  height: 128px;
  margin: 0 auto 32px;
  border-radius: 22px;
}

.hero h1 {
  font-size: 56px;
  font-weight: 700;
  letter-spacing: -1.5px;
  color: #ffffff;
  margin-bottom: 12px;
}

.tagline {
  font-size: 22px;
  color: #a1a1aa;
  margin-bottom: 24px;
  line-height: 1.4;
}

.description {
  font-size: 17px;
  color: #a1a1aa;
  line-height: 1.7;
  max-width: 540px;
  margin: 0 auto 40px;
}

.cta-button {
  display: inline-block;
  padding: 14px 32px;
  background: #3b82f6;
  color: #fff;
  text-decoration: none;
  font-size: 16px;
  font-weight: 600;
  border-radius: 10px;
  transition: background 0.2s;
}

.cta-button:hover {
  background: #2563eb;
}

/* Sections */

section {
  margin-bottom: 96px;
}

h2 {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: #ffffff;
  margin-bottom: 32px;
  text-align: center;
}

/* How it works */

.steps {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.step {
  background: #1a1a1f;
  border: 1px solid #27272a;
  border-radius: 14px;
  padding: 32px 28px;
}

.step-icon {
  display: inline-block;
  padding: 6px 14px;
  background: #27272a;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 700;
  color: #3b82f6;
  letter-spacing: 1px;
  margin-bottom: 16px;
}

.step h3 {
  font-size: 18px;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 8px;
}

.step p {
  font-size: 15px;
  color: #a1a1aa;
  line-height: 1.6;
}

/* Features */

.feature-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background: #1a1a1f;
  border: 1px solid #27272a;
  border-radius: 14px;
  padding: 24px 28px;
}

.feature-icon {
  font-size: 22px;
  flex-shrink: 0;
  width: 40px;
  text-align: center;
  padding-top: 2px;
}

.feature-list li strong {
  display: block;
  font-size: 16px;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 4px;
}

.feature-list li p {
  font-size: 15px;
  color: #a1a1aa;
  line-height: 1.5;
}

/* Privacy */

.privacy-card {
  background: #1a1a1f;
  border: 1px solid #27272a;
  border-radius: 14px;
  padding: 48px 40px;
  text-align: center;
}

.privacy-card p {
  font-size: 17px;
  color: #a1a1aa;
  line-height: 1.7;
  max-width: 560px;
  margin: 0 auto;
}

/* Support */

.support-card {
  background: #1a1a1f;
  border: 1px solid #27272a;
  border-radius: 14px;
  padding: 48px 40px;
  text-align: center;
}

.support-card p {
  font-size: 17px;
  color: #a1a1aa;
  line-height: 1.7;
  max-width: 560px;
  margin: 0 auto 32px;
}

.support-button {
  display: inline-block;
  padding: 14px 32px;
  background: #3b82f6;
  color: #fff;
  text-decoration: none;
  font-size: 16px;
  font-weight: 600;
  border-radius: 10px;
  transition: background 0.2s;
}

.support-button:hover {
  background: #2563eb;
}

/* Footer */

footer {
  text-align: center;
  padding: 24px 0 0;
  color: #52525b;
  font-size: 14px;
}

/* Responsive */

@media screen and (max-width: 600px) {
  .container {
    padding: 48px 16px 32px;
  }

  .hero h1 {
    font-size: 40px;
  }

  .tagline {
    font-size: 18px;
  }

  .description {
    font-size: 16px;
  }

  .steps {
    grid-template-columns: 1fr;
  }

  .privacy-card,
  .support-card {
    padding: 32px 24px;
  }

  section {
    margin-bottom: 64px;
  }
}