* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Segoe UI", sans-serif;
}

body {
  background: #f4f6f8;
  color: #222;
  line-height: 1.7;
}

/* HERO */
.hero {
  height: 100vh;
  background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
  color: white;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
}

.hero span {
  color: #00d9ff;
}

.btn {
  margin-top: 20px;
  padding: 12px 24px;
  background: #00d9ff;
  color: #000;
  text-decoration: none;
  border-radius: 30px;
  transition: transform 0.3s;
}

.btn:hover {
  transform: scale(1.1);
}

/* SECTIONS */
.section {
  padding: 80px 15%;
}

.section.dark {
  background: #111;
  color: #eee;
}

h2 {
  font-size: 2.2rem;
  margin-bottom: 20px;
}

/* CARDS */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
}

.card {
  padding: 25px;
  background: white;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.1);
  text-align: center;
  transition: transform 0.4s;
}

.card:hover {
  transform: translateY(-10px);
}

/* FOOTER */
footer {
  background: #000;
  color: #aaa;
  text-align: center;
  padding: 30px;
}

footer a {
  color: #00d9ff;
  text-decoration: none;
}

.reveal {
  opacity: 0;
  transform: translateY(50px);
  transition: all 0.8s ease;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

.fade-in {
  opacity: 0;
  animation: fade 1.5s forwards;
}

.fade-in.delay { animation-delay: 0.5s; }
.fade-in.delay2 { animation-delay: 1s; }

@keyframes fade {
  to { opacity: 1; }
}