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

body {
  font-family: system-ui, -apple-system, sans-serif;
  background-color: #0f172a;
  color: #e2e8f0;
  line-height: 1.6;
}

a {
  color: #38bdf8;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  background-color: #1e293b;
  position: sticky;
  top: 0;
  z-index: 1000;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.25rem;
  font-weight: bold;
}

.logo img {
  width: 40px;
  height: 40px;
}

nav {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.lang-switcher {
  background: transparent;
  border: 1px solid #38bdf8;
  color: #38bdf8;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.875rem;
}

.lang-switcher:hover {
  background-color: #38bdf8;
  color: #0f172a;
}

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

section {
  margin-bottom: 4rem;
}

h1, h2, h3 {
  color: #e2e8f0;
  margin-bottom: 1rem;
}

h1 {
  font-size: 3rem;
  line-height: 1.2;
}

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

.hero {
  text-align: center;
  padding: 6rem 0;
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: 6px;
  font-weight: 600;
  text-decoration: none;
  margin: 0.5rem;
  cursor: pointer;
  border: none;
  font-size: 1rem;
}

.btn-primary {
  background-color: #38bdf8;
  color: #0f172a;
}

.btn-primary:hover {
  background-color: #0ea5e9;
  text-decoration: none;
}

.btn-store {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  background-color: #1e293b;
  border: 1px solid #334155;
  color: #e2e8f0;
  text-decoration: none;
  font-weight: 600;
  margin: 0.5rem;
  opacity: 0.7;
  cursor: not-allowed;
  position: relative;
}

.btn-store .badge {
  font-size: 0.75rem;
  background-color: #f87171;
  color: white;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  margin-left: 0.5rem;
}

.btn-store:hover {
  text-decoration: none;
}

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

.feature-card {
  background-color: #1e293b;
  padding: 2rem;
  border-radius: 12px;
  border: 1px solid #334155;
}

.feature-card h3 {
  color: #38bdf8;
  margin-bottom: 0.5rem;
}

.steps {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.step {
  text-align: center;
  flex: 1;
  min-width: 200px;
  max-width: 300px;
}

.step-number {
  display: inline-block;
  width: 50px;
  height: 50px;
  line-height: 50px;
  border-radius: 50%;
  background-color: #38bdf8;
  color: #0f172a;
  font-size: 1.5rem;
  font-weight: bold;
  margin-bottom: 1rem;
}

.privacy-highlight {
  background-color: #1e293b;
  padding: 2rem;
  border-radius: 12px;
  text-align: center;
  border: 1px solid #334155;
}

ul {
  margin-left: 2rem;
  margin-bottom: 1.5rem;
}

li {
  margin-bottom: 0.5rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
  margin-bottom: 2rem;
}

th, td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid #334155;
}

th {
  background-color: #1e293b;
  color: #38bdf8;
}

footer {
  text-align: center;
  padding: 2rem;
  border-top: 1px solid #334155;
  margin-top: 4rem;
}

@media (max-width: 768px) {
  header {
    flex-direction: column;
    gap: 1rem;
  }
  
  h1 {
    font-size: 2rem;
  }
  
  .hero {
    padding: 3rem 0;
  }
}