/* ===== GLOBAL ===== */
body {
  margin: 0;
  font-family: Inter, Arial, sans-serif;
  background: radial-gradient(circle at top, #0b1220, #05070d);
  color: #e6edf3;
}

/* ===== LAYOUT ===== */
header {
  text-align: center;
  padding: 80px 20px 40px;
}

h1 {
  font-size: 44px;
  letter-spacing: 0.5px;
  margin: 0;
}

h2 {
  font-weight: 400;
  color: #8aa4ff;
  margin-top: 10px;
}

/* ===== LINKS ===== */
a {
  color: #4da3ff;
  text-decoration: none;
  transition: 0.2s ease;
}

a:hover {
  color: #82c0ff;
  text-shadow: 0 0 10px rgba(77,163,255,0.4);
}

/* ===== HUB CARD EFFECT ===== */
div {
  text-align: center;
}

/* ===== BUTTON STYLE ===== */
button, .btn {
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  border: none;
  padding: 12px 18px;
  border-radius: 10px;
  color: white;
  cursor: pointer;
  font-weight: 600;
  transition: 0.2s;
}

button:hover, .btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(37,99,235,0.3);
}

/* ===== DEVELOPER HUB CENTER CARD ===== */
.center {
  max-width: 900px;
  margin: auto;
  padding: 40px;
}

/* ===== GRID (FOR FUTURE API LISTING PAGES) ===== */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  padding: 40px;
}

/* ===== CARD ===== */
.card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 14px;
  padding: 20px;
  backdrop-filter: blur(10px);
  transition: 0.2s;
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(77,163,255,0.5);
  box-shadow: 0 10px 30px rgba(0,0,0,0.4);
}