* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Consolas, monospace;
  background: #0a0f1f;
  color: #e6f1ff;
  line-height: 1.6;
}

header {
  text-align: center;
  padding: 90px 20px;
}

.logo {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
}

.logo img {
  width: 64px;
  height: 64px;
}

h1 {
  font-size: 72px;
  margin: 0;
  color: #00e5ff;
}

.tagline {
  font-size: 20px;
  opacity: 0.85;
}

.buttons {
  margin-top: 30px;
}

.buttons a {
  display: inline-block;
  margin: 10px;
  padding: 14px 28px;
  background: #1e2a4a;
  color: white;
  text-decoration: none;
  border-radius: 8px;
  transition: 0.3s;
}

.buttons a:hover {
  background: #00e5ff;
  color: black;
}

section {
  max-width: 900px;
  margin: auto;
  padding: 40px 20px;
  opacity: 0;
  transform: translateY(25px);
  transition: 0.6s ease;
}

section.visible {
  opacity: 1;
  transform: translateY(0);
}

h2 {
  color: #00e5ff;
}

ul {
  padding-left: 20px;
}

pre {
  background: #111;
  padding: 16px;
  border-radius: 8px;
  color: #00ff9c;
  overflow-x: auto;
  cursor: pointer;
}

pre.copied {
  background: #00e5ff;
  color: black;
}

.hint {
  font-size: 12px;
  opacity: 0.6;
}

.download {
  display: inline-block;
  padding: 16px 34px;
  background: #00e5ff;
  color: black;
  border-radius: 10px;
  font-weight: bold;
  text-decoration: none;
}

.version-card {
  background: #11182f;
  border-radius: 12px;
  padding: 24px;
  margin: 20px 0;
  border: 1px solid #1e2a4a;
}

.version-card.latest {
  border: 2px solid #00e5ff;
  box-shadow: 0 0 25px rgba(0,229,255,0.25);
}

.badge {
  font-size: 12px;
  padding: 4px 8px;
  border-radius: 6px;
}

.badge.stable {
  background: #00e5ff;
  color: black;
}

.badge.legacy {
  background: #555;
  color: white;
}

footer {
  text-align: center;
  padding: 40px;
  opacity: 0.6;
}

/* =========================
   MOBILE RESPONSIVE FIX
   ========================= */
@media (max-width: 768px) {

  header {
    padding: 60px 16px;
  }

  h1 {
    font-size: 48px;
  }

  .tagline {
    font-size: 16px;
  }

  .logo {
    flex-direction: column;
  }

  .buttons {
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .buttons a,
  .download {
    width: 100%;
    max-width: 320px;
    text-align: center;
    margin: 8px 0;
    padding: 14px;
  }

  section {
    padding: 28px 16px;
  }

  pre {
    font-size: 14px;
  }

  footer {
    font-size: 13px;
    padding: 30px 16px;
  }
}

@media (max-width: 420px) {
  h1 {
    font-size: 40px;
  }
}