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

body {
  background: #01022a;
  color: #f5f5f5;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;
  line-height: 1.5;
  padding: 30px 20px;
}

::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #000;
}

::-webkit-scrollbar-thumb {
  background: #222;
  border-radius: 10px;
}

.container {
  max-width: 1100px;
  margin: auto;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.logo {
  font-weight: 700;
  font-size: 20px;
}

.nav {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.nav a {
  color: #aaa;
  text-decoration: none;
  font-size: 14px;
}

.nav a:hover {
  color: white;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 34px;
  padding: 0 16px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  border: none;
  text-decoration: none;
  position: relative;
}

.btn-primary {
  background: white;
  color: black;
}

.btn-secondary {
  background: transparent;
  border: 1px solid #333;
  color: #ccc;
}

.hero {
  text-align: center;
  margin-bottom: 50px;
}

.hero h1 {
  font-size: 42px;
  margin-bottom: 10px;
}

.subtitle {
  color: #aaa;
  font-size: 16px;
  max-width: 520px;
  margin: auto;
  margin-bottom: 20px;
}

.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.card {
  background: #0500148a;
  border: 1px solid #222;
  border-radius: 16px;
  padding: 20px;
}

.card h2 {
  font-size: 20px;
  margin-bottom: 10px;
}

.card p {
  color: #bbb;
  font-size: 15px;
  margin-bottom: 10px;
}

.features {
  padding-left: 18px;
}

.features li {
  margin-bottom: 6px;
  color: #ccc;
}

.steps {
  padding-left: 18px;
  font-size: 14px;
}

.steps li {
  margin-bottom: 6px;
  color: #ccc;
}

code {
  background: #111;
  padding: 4px 8px;
  border-radius: 6px;
}

.accordion-item {
  border-top: 1px solid #222;
  padding: 10px 0;
}

.accordion-question {
  font-size: 15px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
}

.accordion-answer {
  max-height: 0;
  overflow: hidden;
  transition: .2s ease;
  color: #bbb;
  margin-top: 5px;
}

.accordion-item.open .accordion-answer {
  max-height: 120px;
}

.footer {
  margin-top: 40px;
  text-align: center;
  color: #777;
  font-size: 13px;
}

@media (max-width:800px) {
  .grid {
    grid-template-columns: 1fr;
  }

  .header {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .nav {
    gap: 10px;
  }
}

.spinner {
  border: 2px solid #f3f3f3;
  border-top: 2px solid #000;
  border-radius: 50%;
  width: 16px;
  height: 16px;
  animation: spin 1s linear infinite;
  margin-left: 8px;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }

  100% {
    transform: rotate(360deg);
  }
}

.feature-img {
  width: 100%;
  border-radius: 8px;
  margin-top: 10px;
  border: 1px solid #333;
}