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

:root {
  --bg-dark: #0a0a0a;
  --bg-card: #111111;
  --green: #00ff00;
  --green-dark: #003300;
  --green-glow: 0 0 10px #00ff00, 0 0 20px #00ff0044;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg-dark);
  color: var(--green);
  font-family: 'Courier New', monospace;
  line-height: 1.6;
  cursor: default;
}

nav {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(10, 10, 10, 0.95);
  border-bottom: 1px solid var(--green-dark);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 30px;
  z-index: 1000;
}



.avatar-logo {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--green);
  box-shadow: 0 0 10px var(--green);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 30px;
}

.nav-links a {
  color: var(--green);
  text-decoration: none;
  transition: all 0.3s;
  text-transform: uppercase;
  font-size: 0.9rem;
}

.nav-links a:hover {
  text-shadow: var(--green-glow);
}

nav .logo a {
  color: var(--green) !important;
  text-shadow: var(--green-glow);
}

.menu-toggle {
  display: none;
  font-size: 1.5rem;
  cursor: pointer;
}

section {
  min-height: 100vh;
  padding: 80px 50px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero {
  text-align: center;
  background: linear-gradient(135deg, #0a0a0a 0%, #0f1a0f 100%);
  position: relative;
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero-bg {
  position: absolute;
  width: 250px;
  height: 250px;
  top: 35%;
  left: 50%;
  transform: translate(-50%, -50%);
  opacity: 0.95;
  border-radius: 50%;
  object-fit: cover;
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero-content h1 {
  font-size: 5rem;
  letter-spacing: 10px;
  text-shadow: var(--green-glow);
  animation: glitch 2s infinite;
}



.tagline {
  font-size: 1.2rem;
  margin-top: 20px;
  opacity: 0.8;
}

.terminal {
  margin-top: 50px;
  font-size: 1.5rem;
}

.prompt {
  color: var(--green);
}

.cursor {
  animation: blink 1s infinite;
}

@keyframes blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

@keyframes glitch {
  0%, 90%, 100% { transform: translate(0); }
  92% { transform: translate(-2px, 2px); }
  94% { transform: translate(2px, -2px); }
  96% { transform: translate(-2px, -2px); }
  98% { transform: translate(2px, 2px); }
}

h2 {
  font-size: 2.5rem;
  margin-bottom: 30px;
  text-shadow: var(--green-glow);
  border-bottom: 2px solid var(--green-dark);
  padding-bottom: 10px;
}

.content-box {
  background: var(--bg-card);
  padding: 30px;
  border: 1px solid var(--green-dark);
  border-radius: 5px;
  max-width: 800px;
}

.content-box p {
  font-size: 1.1rem;
  line-height: 1.8;
}

.skills {
  margin-top: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.skill {
  background: var(--green-dark);
  padding: 5px 15px;
  border-radius: 3px;
  font-size: 0.9rem;
  border: 1px solid var(--green);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  margin-top: 20px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--green-dark);
  border-radius: 5px;
  padding: 20px;
  transition: all 0.3s;
}

.card:hover {
  border-color: var(--green);
  box-shadow: var(--green-glow);
  transform: translateY(-5px);
}

.card h3 {
  margin-bottom: 10px;
  font-size: 1.2rem;
}

.card h3,
.card p,
.card a {
  color: var(--green);
}

.card p {
  opacity: 0.8;
  margin-bottom: 15px;
  font-size: 0.95rem;
}

.tag {
  display: inline-block;
  background: var(--green-dark);
  padding: 3px 10px;
  font-size: 0.75rem;
  border-radius: 3px;
  border: 1px solid var(--green);
}

.social-links {
  display: flex;
  gap: 20px;
  margin-top: 20px;
}

.social {
  color: var(--green);
  text-decoration: none;
  padding: 10px 20px;
  border: 1px solid var(--green);
  border-radius: 3px;
  transition: all 0.3s;
}

.social:hover {
  background: var(--green);
  color: var(--bg-dark);
}

footer {
  text-align: center;
  padding: 30px;
  border-top: 1px solid var(--green-dark);
  font-size: 0.9rem;
  opacity: 0.7;
}

.curso-redes {
  max-width: 900px;
}

.curso-redes h3 {
  font-size: 1.5rem;
  margin-bottom: 20px;
  text-shadow: var(--green-glow);
  border-bottom: 1px solid var(--green-dark);
  padding-bottom: 10px;
}

.modulo {
  margin-bottom: 30px;
  padding: 20px;
  background: rgba(0, 51, 0, 0.2);
  border-left: 3px solid var(--green);
}

.modulo h4 {
  font-size: 1.2rem;
  margin-bottom: 15px;
  color: var(--green);
}

.modulo h5 {
  font-size: 1rem;
  margin: 15px 0 10px;
  opacity: 0.9;
}

.curso-redes table {
  width: 100%;
  border-collapse: collapse;
  margin: 10px 0;
}

.curso-redes table th,
.curso-redes table td {
  border: 1px solid var(--green-dark);
  padding: 8px 12px;
  text-align: left;
  font-size: 0.9rem;
}

.curso-redes table th {
  background: var(--green-dark);
}

.curso-redes pre {
  background: #000;
  padding: 15px;
  border: 1px solid var(--green-dark);
  border-radius: 3px;
  font-size: 0.85rem;
  overflow-x: auto;
  margin: 10px 0;
  line-height: 1.5;
}

.curso-redes ol {
  padding-left: 20px;
}

.curso-redes li {
  margin: 5px 0;
}

.curso-redes a {
  color: var(--green);
  text-decoration: underline;
}

.curso-redes a:hover {
  text-shadow: var(--green-glow);
}

.tip {
  background: var(--green-dark);
  padding: 15px;
  border: 1px solid var(--green);
  border-radius: 5px;
  margin-top: 20px;
}

.tip a {
  color: var(--green);
}

.tags {
  margin-top: 20px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.tags .tag {
  font-size: 0.8rem;
}

.btn-curso {
  display: inline-block;
  background: var(--green-dark);
  color: var(--green);
  padding: 10px 20px;
  border: 1px solid var(--green);
  border-radius: 3px;
  text-decoration: none;
  transition: all 0.3s;
  margin-top: 10px;
}

.btn-curso:hover {
  background: var(--green);
  color: var(--bg-dark);
}

.back-link {
  display: inline-block;
  color: var(--green);
  text-decoration: none;
  margin-bottom: 20px;
  font-size: 0.9rem;
}

.back-link:hover {
  text-shadow: var(--green-glow);
}

.curso-pagina {
  padding-top: 120px;
  padding-left: 50px;
  padding-right: 50px;
}

.curso-pagina .content-box {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 40px;
}

.curso-pagina .modulo {
  text-align: center;
}

.curso-pagina .modulo h4 {
  text-align: left;
}

#tutoriales .grid {
  justify-content: center;
}

#tutoriales .card {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
  padding: 40px;
}

#tutoriales .card h3 {
  font-size: 1.8rem;
  margin-bottom: 15px;
  text-shadow: var(--green-glow);
}

#tutoriales .card p {
  font-size: 1.1rem;
  opacity: 0.9;
}

.imagen-curso {
  width: 100%;
  max-width: 700px;
  margin: 20px auto;
}

.imagen-curso img {
  width: 100%;
  height: auto;
  border: 1px solid var(--green-dark);
  border-radius: 5px;
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 60px;
    left: 0;
    width: 100%;
    background: var(--bg-dark);
    padding: 20px;
    border-bottom: 1px solid var(--green-dark);
  }

  .nav-links.active {
    display: flex;
  }

  .menu-toggle {
    display: block;
  }

  .hero-content h1 {
    font-size: 2.5rem;
  }

  section {
    padding: 60px 20px;
  }

  h2 {
    font-size: 1.8rem;
  }

  .curso-redes table {
    font-size: 0.8rem;
  }

  .curso-redes pre {
    font-size: 0.75rem;
  }
}