/* RESET */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Poppins', sans-serif;
}

/* BASE */
body {
  background: #0a0a0a;
  color: #fff;
}

/* HEADER */
header {
  position: fixed;
  width: 100%;
  padding: 20px 10%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(0,0,0,0.85);
  backdrop-filter: blur(10px);
  z-index: 1000;
}

header img {
  height: 45px;
}

nav a {
  margin-left: 25px;
  text-decoration: none;
  color: #B2FFFF;
  font-weight: 500;
  transition: 0.3s;
}

nav a:hover {
  color: #B2FFFF;
}

/* HERO */
.hero {
  height: 100vh;
  background: linear-gradient(rgba(0,0,0,0.65), rgba(0,0,0,0.65)),
              url('TU-IMAGEN.jpg') center/cover;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0 20px;
}

.hero h1 {
  font-size: 55px;
  font-weight: 700;
  letter-spacing: 2px;
}

.hero p {
  margin-top: 15px;
  font-size: 18px;
  color: #ccc;
}

.btn {
  display: inline-block;
  margin-top: 25px;
  padding: 12px 28px;
  background: #B2FFFF;
  color: #000;
  border-radius: 30px;
  text-decoration: none;
  font-weight: 600;
  transition: 0.3s;
}

.btn:hover {
  background: #fff;
}

/* SECCIONES */
section {
  padding: 90px 10%;
}

.section-title {
  font-size: 34px;
  margin-bottom: 40px;
  text-align: center;
}

/* SOBRE */
.about {
  max-width: 800px;
  margin: auto;
  text-align: center;
  color: #ccc;
  line-height: 1.6;
}

/* CATEGORÍAS */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 25px;
}

.card {
  background: #111;
  padding: 30px;
  border-radius: 15px;
  text-align: center;
  transition: 0.3s;
  border: 1px solid transparent;
}

.card:hover {
  transform: translateY(-10px);
  border: 1px solid #B2FFFF;
  background: #151515;
}

.card h3 {
  margin-bottom: 10px;
}

/* CTA */
.cta {
  text-align: center;
  background: #111;
  padding: 60px 20px;
  border-radius: 20px;
}

.cta p {
  color: #ccc;
  margin: 10px 0 20px;
}

/* FOOTER */
footer {
  padding: 40px 10%;
  text-align: center;
  background: #000;
  color: #777;
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 32px;
  }

  nav {
    display: none; /* luego puedes hacer menú móvil */
  }
}