*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  color: white;
  background: linear-gradient(
    135deg,
    #0f172a,
    #1e3a8a,
    #4c1d95,
    #2563eb,
    #0f172a
  );
  background-size: 500% 500%;
  animation: gradientShift 18s ease infinite;
  line-height: 1.6;
}

@keyframes gradientShift {
  0% {
    background-position: 0% 50%;
  }

  50% {
    background-position: 100% 50%;
  }

  100% {
    background-position: 0% 50%;
  }
}

.wrapper {
  width: min(1100px, 92%);
  margin: auto;
}

.hero {
  text-align: center;
  padding: 100px 0;
}

h1 {
  font-size: 3rem;
  margin-bottom: 10px;
}

h2 {
  margin-bottom: 10px;
}

.card {
  background: rgba(0,0,0,0.5);
  padding: 20px;
  margin: 20px 0;
  border-radius: 10px;
}

.tabs {
  display: flex;
  gap: 10px;
  margin-bottom: 15px;
  flex-wrap: wrap;
}

.tab-button {
  padding: 10px 15px;
  border: none;
  cursor: pointer;
  background: rgba(255,255,255,0.2);
  color: white;
  border-radius: 20px;
}

.tab-button.active {
  background: #00ffc3;
  color: black;
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

.fade-section:nth-child(1) { transition-delay: 0.1s; }
.fade-section:nth-child(2) { transition-delay: 0.2s; }
.fade-section:nth-child(3) { transition-delay: 0.3s; }

body.fade-ready .fade-section {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

body.fade-ready .fade-section.show {
  opacity: 1;
  transform: translateY(0);
}

.btn {
  background: #00ffc3;
  color: black;
  padding: 10px 20px;
  text-decoration: none;
  display: inline-block;
  margin-top: 10px;
  border-radius: 20px;
}

.footer {
  margin-top: 60px;
  padding: 25px 0;
  background: rgba(0,0,0,0.6);
  border-top: 1px solid rgba(255,255,255,0.2);
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-links a {
  color: #00ffc3;
  text-decoration: none;
  font-size: 0.9rem;
  cursor: pointer;
}

.footer-links a:hover {
  color: white;
  text-decoration: underline;
}

@media (max-width: 600px) {
  .hero {
    padding: 60px 0;
  }

  .tabs {
    flex-direction: column;
  }

  .tab-button {
    width: 100%;
    text-align: center;
  }
}