:root {
  --bg-color: #0d0f12;
  --bg-surface: rgba(255, 255, 255, 0.03);
  --bg-surface-hover: rgba(255, 255, 255, 0.06);
  --border-color: rgba(255, 255, 255, 0.1);
  --text-main: #f0f4f8;
  --text-muted: #8b949e;
  --accent-color: #00ff88;
  --accent-glow: rgba(0, 255, 136, 0.4);
  --accent-color-alt: #b026ff;
  
  --font-sans: 'Inter', system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
  
  --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

body {
  background-color: var(--bg-color);
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 15% 50%, rgba(0, 255, 136, 0.05), transparent 25%),
    radial-gradient(circle at 85% 30%, rgba(176, 38, 255, 0.05), transparent 25%);
}

.wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Typography */
h1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  line-height: 1.1;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.2;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--text-main);
}

p {
  color: var(--text-muted);
  font-size: 1.125rem;
}

code {
  font-family: var(--font-mono);
  background: var(--bg-surface);
  padding: 0.2em 0.4em;
  border-radius: 4px;
  font-size: 0.9em;
  color: var(--accent-color);
  border: 1px solid var(--border-color);
}

/* Topbar */
.topbar {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 100;
  background: rgba(13, 15, 18, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
}

.topbar__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.brand {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 1.5rem;
  letter-spacing: -0.03em;
  color: var(--text-main);
}

.brand__dot {
  color: var(--accent-color);
}

.topnav {
  display: flex;
  gap: 2rem;
}

.topnav a {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: var(--transition);
}

.topnav a:hover {
  color: var(--text-main);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 2rem;
  font-weight: 600;
  font-size: 1rem;
  border-radius: 8px;
  text-decoration: none;
  transition: var(--transition);
  cursor: pointer;
}

.btn--primary {
  background: var(--accent-color);
  color: #000;
  box-shadow: 0 0 20px var(--accent-glow);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px var(--accent-glow);
  background: #33ff9f;
}

.btn--ghost {
  background: transparent;
  color: var(--text-main);
  border: 1px solid var(--border-color);
}

.btn--ghost:hover {
  background: var(--bg-surface);
  border-color: rgba(255, 255, 255, 0.2);
}

/* Hero Section */
.hero {
  padding: 180px 0 100px;
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.eyebrow {
  font-family: var(--font-mono);
  color: var(--accent-color-alt);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1.5rem;
}

.hero__accent {
  background: linear-gradient(90deg, var(--accent-color), #00b8ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__lead {
  font-size: 1.25rem;
  margin-bottom: 2.5rem;
  max-width: 500px;
}

.hero__cta {
  display: flex;
  gap: 1rem;
}

/* Terminal Simulator */
.terminal {
  background: #090a0c;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  overflow: hidden;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  transform: perspective(1000px) rotateY(-5deg) rotateX(5deg);
  transition: var(--transition);
}

.terminal:hover {
  transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
  border-color: rgba(0, 255, 136, 0.3);
  box-shadow: 0 30px 60px -12px rgba(0, 255, 136, 0.15);
}

.terminal__bar {
  background: #161b22;
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
  gap: 0.5rem;
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.dot--r { background: #ff5f56; }
.dot--y { background: #ffbd2e; }
.dot--g { background: #27c93f; }

.terminal__title {
  margin-left: auto;
  margin-right: auto;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.terminal__body {
  padding: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--accent-color);
  min-height: 300px;
  white-space: pre-wrap;
  line-height: 1.5;
}

.terminal__body::before {
  content: '➜ ';
  color: var(--accent-color-alt);
}
.terminal__body::after {
  content: '_';
  animation: blink 1s step-start infinite;
}

@keyframes blink {
  50% { opacity: 0; }
}

/* Fases Section */
.fases {
  padding: 100px 0;
  position: relative;
}

.section__eyebrow {
  font-family: var(--font-mono);
  color: var(--accent-color);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
}

.section__title {
  margin-bottom: 1rem;
}

.section__lead {
  margin-bottom: 4rem;
  font-size: 1.25rem;
}

.fases__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.fase {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2.5rem 2rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.fase::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-color), transparent);
  opacity: 0;
  transition: var(--transition);
}

.fase:hover {
  background: var(--bg-surface-hover);
  transform: translateY(-5px);
  border-color: rgba(255, 255, 255, 0.2);
}

.fase:hover::before {
  opacity: 1;
}

.fase__num {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent-color-alt);
  display: block;
  margin-bottom: 1rem;
  font-weight: 600;
}

.fase p {
  font-size: 1rem;
  margin-top: 1rem;
}

/* Empezar Section */
.empezar {
  padding: 100px 0 150px;
}

.empezar__inner {
  background: linear-gradient(145deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0.01) 100%);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 4rem;
  text-align: center;
}

.empezar h2 {
  margin-bottom: 3rem;
}

.empezar__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 2rem;
  text-align: left;
  max-width: 600px;
  margin: 0 auto;
}

.empezar__list li {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-size: 1.125rem;
  color: var(--text-main);
  background: rgba(0,0,0,0.3);
  padding: 1.5rem;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.05);
}

.empezar__list li span {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  color: var(--accent-color);
  font-weight: 600;
  opacity: 0.5;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border-color);
  padding: 3rem 0;
  background: #090a0c;
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.9rem;
}

.footer__muted {
  color: var(--text-muted);
}

/* Responsive */
@media (max-width: 900px) {
  .hero__grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 3rem;
  }
  
  .hero__cta {
    justify-content: center;
  }
  
  .hero__lead {
    margin-left: auto;
    margin-right: auto;
  }
  
  .terminal {
    transform: none;
  }
  
  .empezar__inner {
    padding: 3rem 2rem;
  }
  
  .empezar__list li {
    flex-direction: column;
    text-align: center;
    gap: 1rem;
  }
}

@media (max-width: 600px) {
  .topnav {
    display: none;
  }
}