* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: #121212;
  color: #f5f7fa;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.header {
  padding: 60px 20px 30px;
  text-align: center;
}

.logo {
  max-width: 280px;
  width: 100%;
  height: auto;
}

.content {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 20px;
  gap: 18px;
}

.card {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(8px);
  padding: 40px 50px;
  border-radius: 20px;
  text-align: center;
  font-size: 18px;
  line-height: 1.8;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.card p {
  margin: 0 0 14px;
}

.card p:last-child {
  margin-bottom: 0;
}

.intro {
  width: min(720px, 100%);
  font-size: 18px;
  line-height: 1.8;
  color: rgba(245, 247, 250, 0.85);
}

.intro p {
  margin: 0 0 14px;
}

.intro p:last-child {
  margin-bottom: 0;
}

a {
  color: #66ded6;
  text-decoration: none;
  font-weight: 500;
}

a:hover {
  opacity: 0.8;
}

@media (max-width: 480px) {
  .header {
    padding: 40px 20px 20px;
  }

  .card {
    padding: 28px 24px;
    font-size: 16px;
  }

  .logo {
    max-width: 220px;
  }
}