/* Reseteo general */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Segoe UI', Tahoma, sans-serif;
}

body {
  background-color: #0d1117; /* Fondo oscuro estilo GitHub */
  color: #c9d1d9;
}

/* NAVBAR */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 50px;
  background-color: #161b22;
  border-bottom: 1px solid #30363d;
}

.logo {
  font-size: 24px;
  font-weight: bold;
  color: white;
}

.logo span {
  color: #58a6ff; /* Azul brillante */
}

.nav-links {
  display: flex;
  gap: 20px;
  align-items: center;
}

.nav-links a {
  color: #c9d1d9;
  text-decoration: none;
  font-weight: 500;
}

.nav-links a:hover {
  color: white;
}

.btn-premium {
  background-color: #238636; /* Verde de compra */
  padding: 10px 20px;
  border-radius: 6px;
  color: white !important;
  font-weight: bold;
}

/* HERO (Cabecera) */
.hero {
  text-align: center;
  padding: 80px 20px;
  background: radial-gradient(circle at center, #1f2937 0%, #0d1117 100%);
}

.hero h1 {
  font-size: 48px;
  color: white;
  margin-bottom: 15px;
}

.hero p {
  font-size: 18px;
  color: #8b949e;
  margin-bottom: 30px;
}

.caja-busqueda input {
  width: 100%;
  max-width: 500px;
  padding: 15px 25px;
  border-radius: 30px;
  border: 1px solid #30363d;
  background-color: #0d1117;
  color: white;
  font-size: 16px;
  outline: none;
}

.caja-busqueda input:focus {
  border-color: #58a6ff;
  box-shadow: 0 0 10px rgba(88, 166, 255, 0.3);
}

/* CATÁLOGO (Grid de Tarjetas) */
.catalogo {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  padding: 50px;
  max-width: 1400px;
  margin: 0 auto;
}

.tarjeta {
  background-color: #161b22;
  border: 1px solid #30363d;
  border-radius: 12px;
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s;
}

.tarjeta:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.5);
  border-color: #58a6ff;
}

.icono-tarjeta {
  height: 120px;
  background: linear-gradient(135deg, #21262d 0%, #161b22 100%);
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 50px;
  border-bottom: 1px solid #30363d;
}

.contenido-tarjeta {
  padding: 20px;
}

.etiqueta {
  display: inline-block;
  background-color: rgba(88, 166, 255, 0.1);
  color: #58a6ff;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: bold;
  margin-bottom: 10px;
}

.contenido-tarjeta h3 {
  color: white;
  margin-bottom: 10px;
  font-size: 20px;
}

.contenido-tarjeta p {
  color: #8b949e;
  font-size: 14px;
  margin-bottom: 20px;
  line-height: 1.5;
}

.btn-desbloquear {
  width: 100%;
  padding: 12px;
  background-color: transparent;
  border: 1px solid #30363d;
  color: #c9d1d9;
  border-radius: 6px;
  cursor: pointer;
  font-weight: bold;
  transition: background 0.3s, color 0.3s;
}

.btn-desbloquear:hover {
  background-color: #58a6ff;
  color: #0d1117;
  border-color: #58a6ff;
}