body {
  font-family: "Space Grotesk", sans-serif;
  background: #0a0f1f;
  color: #f2f2f2;
  margin: 0;
  padding: 0;
}
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  background: rgba(20, 25, 45, 0.85);
  backdrop-filter: blur(10px);
}
button {
  background: #2a60ff;
  border: none;
  padding: 8px 16px;
  border-radius: 6px;
  color: white;
  cursor: pointer;
  transition: 0.2s;
}
button:hover {
  opacity: 0.8;
}

.markets {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  padding: 20px;
}
.card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  padding: 15px;
  transition: 0.3s;
}
.card:hover {
  transform: scale(1.03);
  background: rgba(255, 255, 255, 0.08);
}
.card h3 {
  margin-top: 0;
}

.modal {
  display: none;
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.6);
  justify-content: center;
  align-items: center;
}
.modal-content {
  background: #11182f;
  padding: 20px;
  border-radius: 12px;
  width: 300px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
input, select {
  padding: 8px;
  border-radius: 6px;
  border: 1px solid #333;
  background: #1a1f3a;
  color: #fff;
}