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

body {
  font-family: 'Segoe UI', sans-serif;
  background-color: #0d0d0d;
  color: #f0f0f0;
  overflow-x: hidden;
}

.background {
  position: fixed;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at top left, #1a1a2e, #0f0f0f);
  animation: bgMove 10s infinite alternate;
  z-index: -1;
}

@keyframes bgMove {
  0% { background-position: top left; }
  100% { background-position: bottom right; }
}

.hero {
  text-align: center;
  padding: 80px 20px 60px;
}

.logo {
  width: 120px;
  animation: fadeIn 2s ease forwards;
  opacity: 0;
}

h1 {
  font-size: 3em;
  margin: 20px 0 10px;
  color: #fff;
}

.subtitle {
  font-size: 1.2em;
  color: #ccc;
  margin-bottom: 30px;
}

.buttons {
  margin-top: 20px;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 15px;
}

.btn {
  background-color: #7c3aed;
  color: white;
  padding: 12px 24px;
  border-radius: 6px;
  font-weight: bold;
  text-decoration: none;
  transition: transform 0.2s, background-color 0.3s;
}

.btn:hover {
  background-color: #a78bfa;
  transform: scale(1.05);
}

.btn.secondary {
  background-color: #2563eb;
}

.btn.secondary:hover {
  background-color: #3b82f6;
}

.features {
  padding: 60px 20px;
  max-width: 960px;
  margin: auto;
}

.features h2 {
  text-align: center;
  font-size: 2em;
  margin-bottom: 40px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.feature {
  background-color: #1f1f1f;
  padding: 20px;
  border-left: 5px solid #4ade80;
  border-radius: 8px;
  font-size: 1.1em;
  transition: transform 0.2s ease;
}

.feature:hover {
  transform: translateY(-4px);
}

.feature.premium {
  border-color: gold;
  background-color: #2a1a1f;
}

.feature.premium span {
  color: gold;
  font-weight: bold;
}

footer {
  text-align: center;
  padding: 30px;
  font-size: 0.9em;
  background-color: #111;
  color: #999;
  margin-top: 60px;
}

.fade-in {
  opacity: 0;
  animation: fadeIn 2s ease-in-out forwards;
}

@keyframes fadeIn {
  0% { opacity: 0; transform: translateY(20px); }
  100% { opacity: 1; transform: translateY(0); }
}