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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #000;
  color: #fff;
}

/* HERO */
.hero {
  height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background: radial-gradient(circle at center, #111, #000);
  text-align: center;
}

.hero h1 {
  font-size: 3rem;
  font-weight: 600;
}

.hero p {
  margin: 10px 0;
  color: #aaa;
}

.btn {
  margin-top: 20px;
  padding: 12px 20px;
  border: 1px solid #fff;
  color: #fff;
  text-decoration: none;
  border-radius: 8px;
  transition: 0.3s;
}

.btn:hover {
  background: #fff;
  color: #000;
}

/* MAIN */
main {
  max-width: 900px;
  margin: auto;
  padding: 40px 20px;
}

/* CARD */
.card {
  border: 1px solid #222;
  padding: 25px;
  border-radius: 14px;
  margin-bottom: 20px;
  backdrop-filter: blur(10px);
  transition: 0.3s;
  opacity: 0;
  transform: translateY(20px);
}

.card.visible {
  opacity: 1;
  transform: translateY(0);
}

/* PROJECT */
.project {
  margin-top: 15px;
  padding: 15px;
  border-left: 2px solid #fff;
}

.project p {
  color: #aaa;
}

/* BUTTON */
button {
  margin-top: 10px;
  padding: 10px 16px;
  border: 1px solid #fff;
  background: transparent;
  color: #fff;
  cursor: pointer;
  border-radius: 6px;
}

button:hover {
  background: #fff;
  color: #000;
}

/* FOOTER */
footer {
  text-align: center;
  padding: 20px;
  color: #666;
}