/* ====== TOKENS ====== */
:root {
  --bg:        #05070A;
  --bg-2:      #0A0F0C;
  --surface:      rgba(255, 255, 255, 0.045);
  --surface-2:    rgba(255, 255, 255, 0.07);
  --border:       rgba(255, 255, 255, 0.09);
  --border-green: rgba(0, 179, 104, 0.32);
  --border-red:   rgba(240, 30, 60, 0.32);

  --green:      #00B368;
  --green-dim:  rgba(0, 179, 104, 0.12);
  --green-glow: rgba(0, 179, 104, 0.35);
  --red:        #F01E3C;
  --red-dim:    rgba(240, 30, 60, 0.12);
  --red-glow:   rgba(240, 30, 60, 0.3);
  --white-dim:  rgba(255, 255, 255, 0.08);

  --text-1: #F5F7F5;
  --text-2: #98A69C;
  --text-3: #5B685F;

  --font-display: 'Barlow Condensed', 'Barlow', sans-serif;
  --font-body:    'Barlow', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono:    'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;
  --font-brand:   'Orbitron', sans-serif;

  /* escala 4/8px */
  --sp-1: 4px;  --sp-2: 8px;  --sp-3: 12px; --sp-4: 16px;
  --sp-5: 24px; --sp-6: 32px; --sp-7: 48px; --sp-8: 64px; --sp-9: 96px;

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --dur-fast: 180ms;
  --dur-med:  280ms;

  --nav-h: 68px;
  --container: 1080px;
}

/* ====== RESET ====== */
* , *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-display: swap;
  background: var(--bg);
  color: var(--text-1);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  position: relative;
}

/* Fondo ambiental: manchas de color a la deriva (fijas al viewport, así se
   ven en todas las secciones y no solo cerca del hero) + una grilla de
   puntos fina para que el negro plano no se sienta "seco". Todo detrás del
   contenido (z-index negativo) y desactivado para prefers-reduced-motion
   por la regla global de arriba. */
body::before {
  content: '';
  position: fixed;
  inset: -10%;
  z-index: -2;
  pointer-events: none;
  background:
    radial-gradient(38% 30% at 18% 12%, rgba(0, 179, 104, 0.14), transparent 70%),
    radial-gradient(30% 26% at 84% 62%, rgba(240, 30, 60, 0.10), transparent 70%),
    radial-gradient(26% 24% at 55% 96%, rgba(0, 179, 104, 0.08), transparent 70%);
  animation: bg-drift 36s ease-in-out infinite alternate;
  will-change: transform;
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image: radial-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 26px 26px;
  mask-image: radial-gradient(1100px 700px at 50% 0%, #000 0%, transparent 75%);
  -webkit-mask-image: radial-gradient(1100px 700px at 50% 0%, #000 0%, transparent 75%);
  opacity: 0.6;
}

@keyframes bg-drift {
  0%   { transform: translate3d(0, 0, 0) scale(1); }
  50%  { transform: translate3d(-2.5%, 2%, 0) scale(1.06); }
  100% { transform: translate3d(2%, -1.5%, 0) scale(1); }
}

a { color: inherit; text-decoration: none; }

img, canvas, svg { display: block; max-width: 100%; }

section { padding: var(--sp-9) var(--sp-4); }

h1, h2, h3 { font-family: var(--font-display); font-weight: 700; letter-spacing: -0.01em; }

.container { max-width: var(--container); margin: 0 auto; }

/* ====== A11Y ====== */
.skip-link {
  position: fixed;
  top: -100%;
  left: var(--sp-4);
  z-index: 999;
  background: var(--green);
  color: #05070A;
  font-weight: 700;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  transition: top var(--dur-fast) var(--ease-out);
}
.skip-link:focus { top: var(--sp-3); }

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ====== NAV ====== */
/* .nav es un contenedor de bloque normal (no flex): así el menú móvil puede
   apilarse debajo de .nav-inner en todo su ancho en vez de quedar como una
   columna angosta a la derecha dentro de una fila flex. */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(5, 7, 10, 0.72);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  height: var(--nav-h);
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--sp-4);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
}

.brand { display: flex; align-items: center; gap: var(--sp-2); }

.brand-text {
  font-family: var(--font-brand);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.nav-links {
  display: none;
  align-items: center;
  gap: var(--sp-6);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-2);
}

.nav-links a { padding: 6px 2px; position: relative; transition: color var(--dur-fast) var(--ease-out); }
.nav-links a:hover, .nav-links a.active { color: var(--text-1); }
.nav-links a.active::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: -6px;
  height: 2px;
  background: var(--green);
  border-radius: 2px;
}

@media (min-width: 768px) {
  .nav-links { display: flex; }
}

.btn-nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 40px;
  padding: 0 18px;
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  border: 1px solid var(--border);
  font-size: 0.85rem;
  font-weight: 600;
  transition: background var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out);
}
.btn-nav-cta:hover { background: var(--green-dim); border-color: var(--border-green); transform: translateY(-1px); }

/* ====== NAV — menú móvil ====== */
.nav-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text-1);
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out);
}
.nav-toggle:hover { background: var(--green-dim); border-color: var(--border-green); }
.nav-toggle .icon-close { display: none; }
.nav-toggle.open .icon-menu  { display: none; }
.nav-toggle.open .icon-close { display: block; }

@media (min-width: 768px) {
  .nav-toggle { display: none; }
}

.mobile-menu {
  display: none;
  flex-direction: column;
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: var(--sp-2) var(--sp-4) var(--sp-4);
  background: rgba(5, 7, 10, 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid var(--border);
}
.mobile-menu.open { display: flex; }

.mobile-menu a {
  padding: var(--sp-3) var(--sp-2);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-2);
  border-bottom: 1px solid var(--border);
  transition: color var(--dur-fast) var(--ease-out);
}
.mobile-menu a:last-child { border-bottom: none; }
.mobile-menu a:hover, .mobile-menu a:focus-visible { color: var(--green); }

@media (min-width: 768px) {
  .mobile-menu { display: none !important; }
}

/* ====== HERO ====== */
.hero {
  position: relative;
  overflow: hidden;
  padding-top: var(--sp-8);
  padding-bottom: var(--sp-8);
  padding-left: var(--sp-4);
  padding-right: var(--sp-4);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--sp-7);
  align-items: center;
  max-width: var(--container);
  margin: 0 auto;
}

.hero-particles {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

.hero-copy, .hero-ball { position: relative; z-index: 1; }

@media (min-width: 900px) {
  .hero {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    padding-top: var(--sp-9);
    padding-bottom: var(--sp-9);
  }
}

.hero-copy { text-align: center; }
@media (min-width: 900px) { .hero-copy { text-align: left; } }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--green);
  background: var(--green-dim);
  border: 1px solid var(--border-green);
  border-radius: 20px;
  padding: 6px 14px;
  margin-bottom: var(--sp-5);
}

.eyebrow .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 8px var(--green-glow);
}

h1.headline {
  font-size: clamp(2.6rem, 6vw, 4.4rem);
  line-height: 1.04;
  margin-bottom: var(--sp-5);
}

.accent-green { color: var(--green); }
.accent-red   { color: var(--red); }

.lead {
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  color: var(--text-2);
  max-width: 52ch;
  margin: 0 auto var(--sp-6);
}
@media (min-width: 900px) { .lead { margin: 0 0 var(--sp-6); } }

.cta-row {
  display: flex;
  gap: var(--sp-3);
  justify-content: center;
  flex-wrap: wrap;
}
@media (min-width: 900px) { .cta-row { justify-content: flex-start; } }

.btn-primary, .btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 52px;
  padding: 0 26px;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  transition: transform var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out);
}

.btn-primary {
  background: var(--green);
  color: #05070A;
  box-shadow: 0 0 0 rgba(0,179,104,0);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 30px -8px var(--green-glow); }
.btn-primary:active { transform: translateY(0) scale(0.98); }

.btn-secondary {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-1);
}
.btn-secondary:hover { background: var(--white-dim); transform: translateY(-2px); }
.btn-secondary:active { transform: translateY(0) scale(0.98); }

/* ====== HERO BALL (3D) ====== */
.hero-ball {
  position: relative;
  width: 100%;
  max-width: 420px;
  aspect-ratio: 1 / 1;
  margin: 0 auto;
}

.hero-ball canvas {
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 600ms var(--ease-out), transform 600ms var(--ease-out);
  transform: scale(0.9);
}

.hero-ball.ball-ready canvas { opacity: 1; transform: scale(1); }

.hero-ball::before {
  content: '';
  position: absolute;
  inset: 8%;
  border-radius: 50%;
  background: radial-gradient(circle, var(--green-glow), transparent 70%);
  filter: blur(30px);
  opacity: 0.5;
  z-index: -1;
}

/* Fallback si WebGL/CDN no cargan: círculo estilizado con CSS puro */
.hero-ball.ball-fallback canvas { display: none; }
.hero-ball.ball-fallback::after {
  content: '';
  position: absolute;
  inset: 6%;
  border-radius: 50%;
  background:
    radial-gradient(circle at 35% 30%, rgba(255,255,255,0.25), transparent 45%),
    repeating-conic-gradient(#141815 0deg 18deg, #F3F1EA 18deg 36deg);
  box-shadow: inset 0 0 60px rgba(0,0,0,0.5), 0 20px 60px -10px var(--green-glow);
  animation: fallback-spin 12s linear infinite;
}
@keyframes fallback-spin { to { transform: rotate(360deg); } }

/* ====== SCROLL REVEAL ====== */
[data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 600ms var(--ease-out), transform 600ms var(--ease-out);
}
[data-reveal].is-visible { opacity: 1; transform: translateY(0); }
[data-reveal].stagger-1 { transition-delay: 60ms; }
[data-reveal].stagger-2 { transition-delay: 120ms; }
[data-reveal].stagger-3 { transition-delay: 180ms; }

/* ====== STATS ====== */
.stats { padding-top: var(--sp-6); padding-bottom: var(--sp-7); }

.stats-eyebrow {
  display: block;
  text-align: center;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: var(--sp-5);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--sp-4);
}
@media (min-width: 700px) {
  .stats-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

.stat-card {
  text-align: center;
  padding: var(--sp-5) var(--sp-2);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--surface);
  transition: transform var(--dur-med) var(--ease-out), border-color var(--dur-med) var(--ease-out), background var(--dur-med) var(--ease-out);
}
.stat-card:hover { transform: translateY(-4px); }

.stat-card:nth-child(1) { border-color: var(--border-green); }
.stat-card:nth-child(1):hover { background: var(--green-dim); }
.stat-card:nth-child(3) { border-color: var(--border-red); }
.stat-card:nth-child(3):hover { background: var(--red-dim); }
.stat-card:nth-child(4) { border-color: var(--border-green); }
.stat-card:nth-child(4):hover { background: var(--green-dim); }

.stat-number {
  display: block;
  font-family: var(--font-brand);
  font-size: clamp(1.9rem, 5vw, 2.6rem);
  font-weight: 900;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
  margin-bottom: var(--sp-2);
  color: var(--text-1);
}
.stat-card:nth-child(1) .stat-number { color: var(--green); text-shadow: 0 0 26px var(--green-glow); }
.stat-card:nth-child(3) .stat-number { color: var(--red); text-shadow: 0 0 26px var(--red-glow); }
.stat-card:nth-child(4) .stat-number { color: var(--green); text-shadow: 0 0 26px var(--green-glow); }

.stat-label {
  display: block;
  font-size: 0.8rem;
  color: var(--text-2);
  line-height: 1.4;
}

/* ====== SECTION HEADINGS ====== */
.section-head { max-width: 620px; margin-bottom: var(--sp-6); }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }

.section-eyebrow {
  display: block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: var(--sp-2);
}

h2.section-title { font-size: clamp(1.7rem, 3vw, 2.4rem); margin-bottom: var(--sp-2); }
.section-sub { color: var(--text-2); font-size: 1rem; }

/* ====== WHY ====== */
.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: var(--sp-4);
}

.why-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--sp-5);
  position: relative;
  overflow: hidden;
  transition: transform var(--dur-med) var(--ease-out), border-color var(--dur-med) var(--ease-out), background var(--dur-med) var(--ease-out);
}
.why-card:hover { transform: translateY(-4px); }

/* Glow que sigue el cursor (posición actualizada por main.js vía --mx/--my) */
.why-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(220px circle at var(--mx, 50%) var(--my, 50%), rgba(255, 255, 255, 0.07), transparent 70%);
  opacity: 0;
  transition: opacity var(--dur-med) var(--ease-out);
  pointer-events: none;
}
.why-card:hover::before { opacity: 1; }

.why-icon {
  width: 44px; height: 44px;
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: var(--sp-4);
}

.why-card h3 { font-family: var(--font-body); font-size: 1.05rem; font-weight: 700; margin-bottom: var(--sp-2); }
.why-card p  { color: var(--text-2); font-size: 0.92rem; margin: 0; }

.card-green { border-color: var(--border-green); }
.card-green .why-icon { background: var(--green-dim); color: var(--green); }
.card-green:hover { background: var(--green-dim); }

.card-white .why-icon { background: var(--white-dim); color: var(--text-1); }
.card-white:hover { background: var(--white-dim); }

.card-red { border-color: var(--border-red); }
.card-red .why-icon { background: var(--red-dim); color: var(--red); }
.card-red:hover { background: var(--red-dim); }

/* ====== STACK TABLE ====== */
.stack-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.stack-table th, .stack-table td {
  text-align: left;
  padding: var(--sp-4);
  border-bottom: 1px solid var(--border);
  font-size: 0.92rem;
  vertical-align: top;
}

.stack-table th {
  color: var(--text-3);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
  background: rgba(255,255,255,0.02);
}

.stack-table tr:last-child td { border-bottom: none; }
.stack-table tbody tr { transition: background var(--dur-fast) var(--ease-out); }
.stack-table tbody tr:hover { background: rgba(255, 255, 255, 0.03); }
.stack-table td.layer { font-weight: 700; white-space: nowrap; }
.stack-table td.layer.l-green { color: var(--green); }
.stack-table td.layer.l-white { color: var(--text-1); }
.stack-table td.layer.l-red   { color: var(--red); }
.stack-table td.desc { color: var(--text-2); }

/* En pantallas angostas, la tabla de 3 columnas queda demasiado apretada
   (la descripción se parte en muchas líneas). Cada fila se convierte en una
   tarjeta apilada: capa, stack y descripción a todo el ancho. */
@media (max-width: 640px) {
  .stack-table thead { display: none; }
  .stack-table, .stack-table tbody, .stack-table tr, .stack-table td {
    display: block;
    width: 100%;
  }
  .stack-table tr {
    padding: var(--sp-4);
    border-bottom: 1px solid var(--border);
  }
  .stack-table tr:last-child { border-bottom: none; }
  .stack-table td {
    padding: 0;
    border: none;
  }
  .stack-table td.layer {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 4px;
  }
  .stack-table td:nth-child(2) {
    font-weight: 700;
    color: var(--text-1);
    font-size: 1rem;
    margin-bottom: var(--sp-2);
  }
  .stack-table td.desc { font-size: 0.9rem; }
}

.rule-callout {
  margin-top: var(--sp-4);
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  font-size: 0.88rem;
  color: var(--text-2);
  background: var(--surface);
  border: 1px dashed var(--border);
  border-radius: var(--radius-sm);
  padding: var(--sp-3) var(--sp-4);
}
.rule-callout svg { flex-shrink: 0; color: var(--green); }

/* ====== ARCH DIAGRAM ====== */
.arch-diagram-visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-5);
}

.arch-runtime {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: var(--sp-4) var(--sp-6);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-green);
  background: var(--green-dim);
  text-align: center;
}
.arch-runtime-label {
  font-family: var(--font-brand);
  font-weight: 700;
  letter-spacing: 0.04em;
  font-size: 1.1rem;
  color: var(--green);
}
.arch-runtime-sub { font-size: 0.78rem; color: var(--text-2); }

.arch-connector {
  width: 1px;
  height: 28px;
  background: linear-gradient(var(--border-green), var(--border));
}

.arch-layers {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--sp-4);
  width: 100%;
}
@media (min-width: 700px) {
  .arch-layers { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

.arch-layer-card {
  padding: var(--sp-5);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--surface);
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: transform var(--dur-med) var(--ease-out), border-color var(--dur-med) var(--ease-out);
}
.arch-layer-card:hover { transform: translateY(-3px); }
.arch-layer-card.layer-green { border-color: var(--border-green); }
.arch-layer-card.layer-red { border-color: var(--border-red); }

.arch-layer-tag { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.08em; font-weight: 700; }
.arch-layer-card.layer-green .arch-layer-tag { color: var(--green); }
.arch-layer-card.layer-white .arch-layer-tag { color: var(--text-1); }
.arch-layer-card.layer-red .arch-layer-tag { color: var(--red); }

.arch-layer-card strong { font-family: var(--font-display); font-size: 1.3rem; }
.arch-layer-card p { color: var(--text-2); font-size: 0.85rem; }

.arch-footnote {
  text-align: center;
  color: var(--text-3);
  font-size: 0.85rem;
  font-family: var(--font-mono);
}

.code-block {
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--sp-5);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  overflow-x: auto;
  line-height: 1.7;
  color: var(--text-1);
}
.code-block .comment { color: var(--text-3); }

/* Fallback accesible/sin-JS: mismo contenido que la terminal animada, oculto
   visualmente pero presente para lectores de pantalla o si el JS no corre. */
.sr-only-code {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ====== TERMINAL DE INSTALACIÓN (animada) ====== */
.terminal {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: rgba(0, 0, 0, 0.35);
}

.terminal-bar {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-3) var(--sp-4);
  background: rgba(255, 255, 255, 0.04);
  border-bottom: 1px solid var(--border);
}
.terminal-dot { width: 9px; height: 9px; border-radius: 50%; }
.dot-red { background: var(--red); opacity: 0.7; }
.dot-yellow { background: #E8B93B; opacity: 0.7; }
.dot-green { background: var(--green); opacity: 0.7; }
.terminal-title {
  margin-left: var(--sp-2);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-3);
}

.terminal-body {
  padding: var(--sp-5);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1.85;
  min-height: 168px;
  color: var(--text-1);
}

.term-line { white-space: pre-wrap; word-break: break-all; }
.term-line.term-comment { color: var(--text-3); }
.term-prompt { color: var(--green); margin-right: 0.5em; }

.term-cursor {
  display: inline-block;
  width: 0.5em;
  margin-left: 1px;
  background: var(--green);
  animation: term-blink 1s step-end infinite;
}

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

.term-progress-row { display: flex; align-items: center; gap: var(--sp-3); color: var(--text-2); }
.term-progress-track {
  flex: 1;
  max-width: 220px;
  height: 6px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}
.term-progress-fill {
  height: 100%;
  width: 0%;
  background: var(--green);
  border-radius: 999px;
}
.term-progress-pct { font-variant-numeric: tabular-nums; min-width: 3.2em; }
.term-line.term-done { color: var(--green); }

/* ====== RUN SECTION ====== */
.download-row { justify-content: flex-start; margin-bottom: var(--sp-5); }

.run-note {
  margin-top: var(--sp-4);
  font-size: 0.88rem;
  color: var(--text-3);
  max-width: 60ch;
}
.run-note a { color: var(--green); text-decoration: underline; }
.run-note code {
  font-family: var(--font-mono);
  background: rgba(255, 255, 255, 0.08);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.85em;
}

/* ====== PHONE FRAME (compartido: demo interactiva) ====== */
.phone-frame {
  position: relative;
  width: min(100%, 320px);
  border: 10px solid #14181a;
  border-radius: 44px;
  background: #0b0d0a;
  overflow: hidden;
  box-shadow: 0 40px 100px -30px var(--green-glow), 0 0 0 1px rgba(255, 255, 255, 0.06);
  transition: transform var(--dur-med) var(--ease-out);
}
.phone-frame:hover { transform: translateY(-6px); }

.phone-notch {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 42%;
  height: 20px;
  background: #14181a;
  border-radius: 0 0 14px 14px;
  z-index: 2;
}

.phone-frame img { width: 100%; height: auto; display: block; }

/* ====== DEMO INTERACTIVA ====== */
.demo-inner { display: flex; flex-direction: column; align-items: center; }

.demo-widget {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-6);
  width: 100%;
}

@media (min-width: 900px) {
  .demo-widget { flex-direction: row; align-items: center; justify-content: center; gap: var(--sp-8); }
}

.demo-tabs {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  width: 100%;
  max-width: 340px;
}

.demo-tab {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  width: 100%;
  text-align: left;
  padding: var(--sp-4);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--surface);
  cursor: pointer;
  transition: border-color var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out);
}
.demo-tab:hover { background: var(--surface-2); }
.demo-tab.active { border-color: var(--border-green); background: var(--green-dim); }

.demo-tab-num {
  flex-shrink: 0;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-brand);
  font-weight: 700;
  font-size: 0.85rem;
  background: var(--surface-2);
  color: var(--text-2);
  transition: background var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out);
}
.demo-tab.active .demo-tab-num { background: var(--green); color: #05070A; }

.demo-tab-copy { display: flex; flex-direction: column; gap: 2px; }
.demo-tab-title { font-weight: 700; font-size: 0.95rem; }
.demo-tab-desc { font-size: 0.8rem; color: var(--text-2); }

.demo-phone {
  aspect-ratio: 520 / 860;
  height: 580px;
  max-height: 70vh;
}

.demo-screen {
  position: absolute;
  inset: 0;
  padding: 34px 16px 16px;
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur-med) var(--ease-out);
  font-family: var(--font-body);
}
.demo-screen.active { opacity: 1; pointer-events: auto; }

.demo-match-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  background: var(--green-dim);
  border: 1px solid var(--border-green);
  font-family: var(--font-brand);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-1);
}
.demo-match-meta { font-family: var(--font-body); font-size: 0.65rem; font-weight: 500; color: var(--text-2); }

.demo-chat {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 8px;
  overflow: hidden;
}

.demo-bubble {
  max-width: 78%;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  line-height: 1.4;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 280ms var(--ease-out), transform 280ms var(--ease-out);
  background: rgba(255, 255, 255, 0.07);
  align-self: flex-start;
  border-bottom-left-radius: 3px;
}
.demo-bubble.show { opacity: 1; transform: translateY(0); }
.demo-bubble.mine { align-self: flex-end; background: var(--green-dim); border: 1px solid var(--border-green); border-bottom-right-radius: 3px; border-bottom-left-radius: var(--radius-sm); }

.demo-bubble.reaction {
  align-self: center;
  background: var(--green-dim);
  border: 1px solid var(--border-green);
  color: var(--green);
  font-family: var(--font-brand);
  font-weight: 700;
  letter-spacing: 0.06em;
  font-size: 0.7rem;
  border-radius: 20px;
}

.demo-input-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
}
.demo-input { flex: 1; font-size: 0.75rem; color: var(--text-3); }
.demo-send {
  width: 26px; height: 26px;
  border-radius: 8px;
  background: var(--green);
  color: #05070A;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}

.demo-ia-header {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--green);
}
.demo-pulse {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 8px var(--green-glow);
  animation: demo-pulse 1.8s infinite;
}
@keyframes demo-pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.3; } }

.demo-typing {
  display: flex;
  gap: 4px;
  align-self: flex-start;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.07);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 280ms var(--ease-out), transform 280ms var(--ease-out);
}
.demo-typing.show { opacity: 1; transform: translateY(0); }
.demo-typing span { width: 5px; height: 5px; border-radius: 50%; background: var(--text-2); animation: demo-typing-dot 1.2s infinite; }
.demo-typing span:nth-child(2) { animation-delay: 0.2s; }
.demo-typing span:nth-child(3) { animation-delay: 0.4s; }
@keyframes demo-typing-dot { 0%, 100% { opacity: 0.2; transform: translateY(0); } 50% { opacity: 1; transform: translateY(-2px); } }

.demo-pool-card {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  padding: 14px;
  border-radius: var(--radius-md);
  background: var(--surface);
  border: 1px solid var(--border);
}
.demo-pool-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  font-weight: 700;
}
.demo-pool-pot { font-family: var(--font-brand); color: var(--red); font-size: 0.95rem; }

.demo-pool-list { display: flex; flex-direction: column; gap: 6px; }
.demo-pool-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  font-size: 0.72rem;
  font-family: var(--font-mono);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 280ms var(--ease-out), transform 280ms var(--ease-out);
}
.demo-pool-row.show { opacity: 1; transform: translateY(0); }
.demo-pool-row b { font-family: var(--font-body); color: var(--red); }

.demo-consensus {
  display: flex;
  align-items: center;
  gap: 6px;
  align-self: center;
  margin-top: auto;
  padding: 8px 16px;
  border-radius: 20px;
  background: var(--green-dim);
  border: 1px solid var(--border-green);
  color: var(--green);
  font-family: var(--font-brand);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  opacity: 0;
  transform: scale(0.8);
  transition: opacity 280ms var(--ease-out), transform 280ms var(--ease-out);
}
.demo-consensus.show { opacity: 1; transform: scale(1); }

/* ====== VIDEO DEMO (placeholder) ====== */
.video-section {
  width: 100%;
  max-width: 720px;
  margin: var(--sp-8) auto 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-3);
}

.video-eyebrow {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
}

.video-placeholder {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-lg);
  border: 1px dashed var(--border);
  background: var(--surface);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  text-align: center;
  padding: var(--sp-5);
}

.video-placeholder-icon {
  color: var(--text-3);
  width: 44px;
  height: 44px;
  padding: var(--sp-3);
  border-radius: 50%;
  border: 1px solid var(--border);
}

.video-placeholder-label { font-weight: 700; color: var(--text-1); }
.video-placeholder-sub { font-size: 0.85rem; color: var(--text-3); max-width: 40ch; }

.video-embed {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
}
.video-embed iframe { width: 100%; height: 100%; border: 0; }

/* ====== FAQ ====== */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  max-width: 720px;
  margin: 0 auto;
}

.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--sp-4) var(--sp-5);
  transition: border-color var(--dur-fast) var(--ease-out);
}
.faq-item[open] { border-color: var(--border-green); }

.faq-item summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 1rem;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
}
.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
  content: '+';
  font-size: 1.4rem;
  line-height: 1;
  color: var(--green);
  transition: transform var(--dur-fast) var(--ease-out);
  flex-shrink: 0;
}
.faq-item[open] summary::after { transform: rotate(45deg); }

.faq-item p {
  margin-top: var(--sp-3);
  color: var(--text-2);
  font-size: 0.92rem;
  line-height: 1.6;
}
.faq-item p a { color: var(--green); text-decoration: underline; }
.faq-item code {
  font-family: var(--font-mono);
  background: rgba(255, 255, 255, 0.08);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.85em;
}

/* ====== FINAL CTA ====== */
.cta-final {
  text-align: center;
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.cta-final h2 { margin-bottom: var(--sp-2); }
.cta-final p { color: var(--text-2); margin-bottom: var(--sp-6); }
.cta-final .cta-row { justify-content: center; }

/* ====== FOOTER ====== */
footer {
  padding: var(--sp-7) var(--sp-4) var(--sp-6);
  border-top: 1px solid var(--border);
}

.footer-inner {
  max-width: var(--container);
  margin: 0 auto var(--sp-5);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-brand);
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-size: 0.85rem;
  color: var(--text-1);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-5);
  font-size: 0.85rem;
}

footer a { color: var(--text-2); transition: color var(--dur-fast) var(--ease-out); }
footer a:hover { color: var(--green); }

.footer-credit {
  max-width: var(--container);
  margin: 0 auto;
  text-align: center;
  color: var(--text-3);
  font-size: 0.8rem;
  padding-top: var(--sp-4);
  border-top: 1px solid var(--border);
}