/* Reset */
main {
  flex: 1;
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', sans-serif;
  background: linear-gradient(
    to bottom,
    #020617 0%,
    #0f172a 40%,
    #020617 100%
  );
  color: white;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 25px 40px;
  background: rgba(2, 6, 23, 0.6);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
}

nav a {
  color: #7dd3fc;
  margin-left: 20px;
  text-decoration: none;
  font-weight: 500;
  transition: 0.3s;
}

nav a:hover {
  color: white;
}

/* Hero Section */
.hero {
  text-align: center;
  padding: 140px 20px;
  background: linear-gradient(135deg, #0ea5e9, #6366f1, #8b5cf6);
  background-size: 200% 200%;
  animation: gradientMove 10s ease infinite;
}

.hero h2 {
  font-size: 3rem;
  margin-bottom: 15px;
}

.hero p {
  opacity: 0.9;
  margin-bottom: 30px;
}

.hero button {
  padding: 12px 30px;
  border-radius: 30px;
  border: none;
  background: white;
  color: black;
  font-weight: bold;
  cursor: pointer;
  transition: 0.3s;
}

.hero button:hover {
  transform: scale(1.05);
  background: #e2e8f0;
}

/* Gradient animation */
@keyframes gradientMove {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* Features */
.features {
  display: flex;
  gap: 30px;
  justify-content: center;
  padding: 80px 40px;
  flex-wrap: wrap;
}

.features div {
  background: rgba(30, 41, 59, 0.6);
  backdrop-filter: blur(10px);
  padding: 30px;
  border-radius: 20px;
  width: 250px;
  text-align: center;
  transition: 0.3s;
}

.features div:hover {
  transform: translateY(-10px);
  background: rgba(51, 65, 85, 0.7);
}

/* Store */
.store {
  display: flex;
  gap: 25px;
  justify-content: center;
  padding: 80px 20px;
  flex-wrap: wrap;
}

.item {
  background: linear-gradient(145deg, #1e293b, #0f172a);
  padding: 30px;
  border-radius: 20px;
  width: 220px;
  text-align: center;
  box-shadow: 0 10px 30px rgba(0,0,0,0.4);
  transition: 0.3s;
}

.item:hover {
  transform: translateY(-8px) scale(1.03);
}

.item button {
  margin-top: 15px;
  padding: 10px 20px;
  border-radius: 20px;
  border: none;
  background: linear-gradient(90deg, #38bdf8, #6366f1);
  color: white;
  cursor: pointer;
}

/* Footer */
footer {
  text-align: center;
  padding: 30px;
  background: transparent;
  opacity: 0.6;
}