/* ============================================================
   OCTOPUS LUX — DESIGN SYSTEM CSS  (ol-page.css)
   Uso: páginas secundarias (aprende/, legales, escuelas-aliadas)
   NO editar el landing page (index.html) con este archivo.
   ============================================================ */

/* ─── TOKENS ─────────────────────────────────────────────────── */
:root {
  /* Brand */
  --brand-text:    #192e40;
  --brand-tagline: #7a8fa3;

  /* Primary */
  --ol-ink:   #2563EB;
  --ol-ink-2: #4F46E5;
  --ol-ink-3: #DBEAFE;

  /* Accent */
  --ol-cyan:  #06B6D4;
  --ol-teal:  #14B8A6;

  /* Status */
  --ol-green:  #16A34A;
  --ol-amber:  #D97706;
  --ol-amber-2:#F59E0B;
  --ol-purple: #7C3AED;
  --ol-red:    #EF4444;

  /* Background */
  --ol-bg:  #FAF9F7;
  --ol-bg-2:#F8FAFC;

  /* Surface */
  --ol-surface: #FFFFFF;

  /* Text */
  --ol-text:  #111827;
  --ol-muted: #4B5563;
  --ol-soft:  #6B7280;

  /* Border */
  --ol-border:   rgba(37,99,235,0.12);
  --ol-border-2: rgba(37,99,235,0.18);

  /* Shadow */
  --ol-shadow:    0 8px 24px rgba(37,99,235,0.10);
  --ol-shadow-lg: 0 18px 48px rgba(37,99,235,0.14);
  --ol-shadow-sm: 0 2px 8px rgba(37,99,235,0.08);

  /* Shape */
  --ol-r-xl: 20px;
  --ol-r-lg: 14px;
  --ol-r-md: 10px;

  /* Typography */
  --font-body:    'DM Sans', sans-serif;
  --font-display: 'DM Sans', sans-serif;

  /* Layout */
  --max: 1120px;

  /* ── Legacy aliases (para páginas que usan nombres del tema oscuro) ── */
  --primary:    var(--ol-ink);
  --primary-2:  var(--ol-ink-2);
  --accent:     var(--ol-cyan);
  --teal:       var(--ol-teal);
  --green:      var(--ol-green);
  --amber:      var(--ol-amber);
  --purple:     var(--ol-purple);
  --bg:         var(--ol-bg);
  --bg-2:       var(--ol-bg-2);
  --surface:    var(--ol-surface);
  --border:     var(--ol-border);
  --border-2:   var(--ol-border-2);
  --shadow:     var(--ol-shadow);
  --shadow-lg:  var(--ol-shadow-lg);
  --text:       var(--ol-text);
  --muted:      var(--ol-muted);
  --soft:       var(--ol-soft);
  /* nombres en español */
  --texto:       var(--ol-text);
  --texto-suave: var(--ol-muted);
  --amarillo:    var(--ol-amber);
  --verde:       var(--ol-green);
  --cyan:        var(--ol-teal);
  --yellow:      var(--ol-amber);
  --card-bg:     var(--ol-surface);
  --card-border: var(--ol-border);
}

/* ─── RESET ─────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
img  { max-width: 100%; display: block; }
a    { color: inherit; text-decoration: none; }
a:focus-visible, button:focus-visible {
  outline: 2px solid rgba(37,99,235,0.45);
  outline-offset: 3px;
  border-radius: var(--ol-r-md);
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

/* ─── BASE ──────────────────────────────────────────────────── */
body {
  font-family: var(--font-body);
  background: var(--ol-bg);
  color: var(--ol-text);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  line-height: 1.7;
}

/* Textura de ruido muy sutil */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
  opacity: 0.15;
}
@media (max-width: 768px) { body::before { display: none; } }

/* ─── LAYOUT ────────────────────────────────────────────────── */
.wrap,
.container {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
  position: relative;
  z-index: 2;
}
section { position: relative; z-index: 2; }

/* ─── BUBBLES DECORATIVAS (tema claro) ──────────────────────── */
.bg-bubbles {
  position: fixed; top: 0; left: 0;
  width: 100%; height: 100%;
  overflow: hidden; z-index: 0;
  pointer-events: none; list-style: none;
}
.bg-bubbles li {
  position: absolute; bottom: -150px;
  border-radius: 50%;
  background: rgba(37,99,235,0.06);
}
@media (max-width: 768px) { .bg-bubbles { display: none; } }

/* ─── HEADER ────────────────────────────────────────────────── */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(20px) saturate(1.4);
  background: rgba(255,255,255,0.90);
  border-bottom: 1px solid var(--ol-border);
  box-shadow: 0 2px 12px rgba(37,99,235,0.07);
}

/* ─── NAV ───────────────────────────────────────────────────── */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 20px;
}

/* Brand */
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  text-decoration: none;
}
.brand-icon,
.brand img {
  width: 38px;
  height: 38px;
  object-fit: contain;
  border-radius: 10px;
  background: #FFFFFF;
  box-shadow: 0 3px 10px rgba(37,99,235,0.12);
  flex-shrink: 0;
}
.brand-copy,
.brand-text { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.brand-name {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: -0.01em;
  color: var(--brand-text);
  line-height: 1;
}
.brand-tagline,
.brand-sub {
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--brand-tagline);
  opacity: 0.8;
  line-height: 1;
  white-space: nowrap;
}

/* Centro (desktop) */
.nav-center {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
  justify-content: center;
}

/* Links de nav */
.nav-link {
  display: flex;
  align-items: center;
  padding: 7px 14px;
  border-radius: var(--ol-r-md);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--ol-muted);
  transition: color 0.15s, background 0.15s;
  min-height: 40px;
}
.nav-link:hover {
  color: var(--ol-text);
  background: var(--ol-bg-2);
}

.nav-link.active {
  color: var(--ol-text);
  background: rgba(37,99,235,0.06);
}

.nav-more { position: relative; }
.nav-more summary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  list-style: none;
  cursor: pointer;
  user-select: none;
}
.nav-more summary::-webkit-details-marker { display: none; }
.nav-more-menu {
  position: absolute;
  top: 100%;
  right: 0;
  z-index: 9999;
  min-width: 190px;
  padding: 8px;
  border: 1px solid var(--ol-border);
  border-radius: var(--ol-r-lg);
  background: rgba(255,255,255,0.97);
  box-shadow: var(--ol-shadow);
  backdrop-filter: blur(20px);
  display: grid;
  gap: 2px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  pointer-events: none;
  transition: opacity .16s ease, transform .16s ease, visibility .16s ease;
}
.nav-more[open] .nav-more-menu,
.nav-more.open .nav-more-menu,
.nav-more:hover .nav-more-menu,
.nav-more:focus-within .nav-more-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}
.nav-more-menu .nav-link {
  display: block;
  width: 100%;
}

/* Derecha (desktop) */
.nav-right {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

/* Botones */
.btn-ghost {
  padding: 8px 16px;
  border-radius: var(--ol-r-lg);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--ol-muted);
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  transition: color 0.15s;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
}
.btn-ghost:hover { color: var(--ol-text); }

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 20px;
  border-radius: var(--ol-r-lg);
  font-size: 0.875rem;
  font-weight: 600;
  background: var(--ol-ink);
  color: #FFFFFF;
  border: none;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.15s, transform 0.15s, box-shadow 0.15s;
  box-shadow: var(--ol-shadow);
  text-decoration: none;
}
.btn-primary:hover {
  background: var(--ol-ink-2);
  transform: translateY(-1px);
  box-shadow: var(--ol-shadow-lg);
}

.btn-hero {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 24px;
  border-radius: var(--ol-r-lg);
  font-size: 0.9rem;
  font-weight: 600;
  background: var(--ol-ink);
  color: #FFFFFF;
  border: none;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.15s, transform 0.15s;
  box-shadow: var(--ol-shadow);
  text-decoration: none;
}
.btn-hero:hover {
  background: var(--ol-ink-2);
  transform: translateY(-1px);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: var(--ol-r-lg);
  font-size: 0.9rem;
  font-weight: 600;
  background: transparent;
  color: var(--ol-text);
  border: 1px solid var(--ol-border-2);
  cursor: pointer;
  font-family: inherit;
  transition: border-color 0.15s, background 0.15s, transform 0.15s;
  text-decoration: none;
}
.btn-outline:hover {
  border-color: rgba(37,99,235,0.28);
  background: var(--ol-bg-2);
  transform: translateY(-1px);
}

/* Legado: .btn (amarillo override a azul) */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 700;
  font-family: inherit;
  font-size: 0.9rem;
  border: none;
  cursor: pointer;
  background: var(--ol-ink);
  color: #FFFFFF;
  box-shadow: var(--ol-shadow);
  text-decoration: none;
  transition: background 0.15s, transform 0.15s;
}
.btn:hover { background: var(--ol-ink-2); transform: translateY(-2px); }

/* Hamburger */
.hamburger {
  display: none;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  color: var(--ol-ink);
  font-size: 1.4rem;
  min-width: 44px;
  min-height: 44px;
  cursor: pointer;
  padding: 0;
  border-radius: var(--ol-r-md);
  transition: background 0.15s;
  flex-shrink: 0;
}
.hamburger:hover { background: var(--ol-bg-2); }

/* ─── MOBILE NAV ────────────────────────────────────────────── */
.mobile-nav {
  display: none;
  position: fixed;
  top: 68px;
  left: 0; right: 0;
  background: rgba(255,255,255,0.97);
  border-bottom: 1px solid var(--ol-border);
  backdrop-filter: blur(20px);
  padding: 10px 20px 18px;
  z-index: 99;
  flex-direction: column;
  gap: 2px;
  box-shadow: 0 12px 32px rgba(37,99,235,0.10);
}
.mobile-nav.open { display: flex; }
.mobile-nav .nav-link {
  padding: 12px 14px;
  font-size: 0.95rem;
  border-radius: var(--ol-r-md);
}
.mobile-nav .btn-hero {
  width: 100%;
  justify-content: center;
  margin-top: 6px;
}
.mobile-nav .nav-more { position: static; }
.mobile-nav .nav-more summary { display: block; }
.mobile-nav .nav-more-menu {
  position: static;
  min-width: 0;
  padding: 0 0 0 12px;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  backdrop-filter: none;
  display: grid;
  opacity: 1;
  visibility: visible;
  transform: none;
  pointer-events: auto;
}

/* ─── RESPONSIVE NAV ────────────────────────────────────────── */
@media (max-width: 1023px) {
  .nav-center { display: none; }
  .hamburger  { display: flex; }
  .nav-right .btn-ghost,
  .nav-right .btn-primary { display: none; }
}
@media (max-width: 480px) {
  .nav { height: 62px; }
}

/* ─── MAIN CONTENT ──────────────────────────────────────────── */
main {
  position: relative;
  z-index: 1;
  max-width: 780px;
  margin: 0 auto;
  padding: 3rem 1.5rem 5rem;
}
@media (max-width: 600px) {
  main { padding: 2rem 1rem 4rem; }
}

/* ─── TIPOGRAFÍA CONTENIDO ──────────────────────────────────── */
h1 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  color: var(--ol-ink);
  line-height: 1.2;
  margin-bottom: 1.5rem;
}
h2 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--ol-text);
  margin: 2.5rem 0 0.8rem;
}
h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--ol-text);
  margin: 1.5rem 0 0.5rem;
}
p { margin-bottom: 1rem; color: var(--ol-muted); }
li { color: var(--ol-muted); }
strong, b { color: var(--ol-text); font-weight: 700; }
em { color: var(--ol-ink); font-style: italic; }

/* ─── COMPONENTES COMUNES ──────────────────────────────────── */

/* Etiqueta de grado / badge */
.grado-badge,
.page-badge {
  display: inline-block;
  background: rgba(217,119,6,0.10);
  color: var(--ol-amber);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 0.3rem 0.8rem;
  border-radius: 50px;
  border: 1px solid rgba(217,119,6,0.22);
  margin-bottom: 1rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* Tarjeta genérica */
.card {
  background: var(--ol-surface);
  border: 1px solid var(--ol-border);
  border-radius: 16px;
  padding: 1.5rem;
  margin: 1.5rem 0;
  box-shadow: var(--ol-shadow);
  backdrop-filter: none;
}
.card:hover {
  border-color: var(--ol-border-2);
  box-shadow: var(--ol-shadow-lg);
}
.card h2, .card h3 { color: var(--ol-text); }
.card p, .card li  { color: var(--ol-muted); }
.card strong       { color: var(--ol-text); }

/* Transición/cita */
.transicion {
  background: rgba(20,184,166,0.08);
  border-left: 3px solid var(--ol-teal);
  border-radius: 0 12px 12px 0;
  padding: 1rem 1.2rem;
  margin: 1.5rem 0;
  font-style: italic;
  color: var(--ol-muted);
}

/* Demo de Tutor Octo */
.demo-card {
  background: linear-gradient(135deg, rgba(37,99,235,0.06), rgba(20,184,166,0.05));
  border: 1px solid var(--ol-border);
  border-radius: 16px;
  padding: 1.5rem;
  margin: 1.5rem 0;
  box-shadow: var(--ol-shadow);
}
.demo-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ol-teal);
  margin-bottom: 0.5rem;
}
.demo-pregunta {
  background: rgba(37,99,235,0.05);
  border: 1px solid var(--ol-border);
  border-radius: 10px;
  padding: 0.8rem 1rem;
  font-size: 0.9rem;
  color: var(--ol-muted);
  margin-bottom: 1rem;
}
.demo-respuesta {
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--ol-text);
}
.demo-respuesta strong { color: var(--ol-ink); }

/* Chip de Octo */
.octo-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(37,99,235,0.08);
  border: 1px solid rgba(37,99,235,0.18);
  border-radius: 50px;
  padding: 0.2rem 0.7rem;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--ol-ink);
  margin-bottom: 0.8rem;
}

/* CTA final */
.cta-box {
  background: linear-gradient(135deg, rgba(37,99,235,0.06), rgba(20,184,166,0.05));
  border: 1px solid var(--ol-border);
  border-radius: 20px;
  padding: 2rem;
  text-align: center;
  margin-top: 2.5rem;
  box-shadow: var(--ol-shadow);
}
.cta-box h2 {
  font-size: 1.6rem;
  color: var(--ol-ink);
  margin-bottom: 0.8rem;
  margin-top: 0;
}
.cta-box p {
  color: var(--ol-muted);
  max-width: 480px;
  margin: 0 auto 1.5rem;
}
.btn-cta {
  display: inline-block;
  background: var(--ol-ink);
  color: #FFFFFF;
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  padding: 0.9rem 2.4rem;
  border-radius: 50px;
  transition: transform 0.2s, background 0.2s;
  box-shadow: var(--ol-shadow);
  text-decoration: none;
}
.btn-cta:hover { transform: translateY(-2px); background: var(--ol-ink-2); }
.cta-nota {
  font-size: 0.8rem;
  color: var(--ol-muted);
  margin-top: 0.8rem;
}

/* ─── SECCIONES LEGALES ─────────────────────────────────────── */
.legal-section,
.legal-intro,
.legal-highlight {
  background: var(--ol-surface);
  border: 1px solid var(--ol-border);
  border-radius: var(--ol-r-lg);
  padding: 2rem;
  margin: 1.5rem 0;
  box-shadow: var(--ol-shadow);
}
.legal-section:hover,
.legal-intro:hover,
.legal-highlight:hover {
  border-color: var(--ol-border-2);
  box-shadow: var(--ol-shadow-lg);
}
.legal-section h2, .legal-section h3,
.legal-intro h2,  .legal-intro h3,
.legal-highlight h2, .legal-highlight h3 { color: var(--ol-text); }
.legal-section p, .legal-section li,
.legal-intro p,  .legal-intro li,
.legal-highlight p, .legal-highlight li { color: var(--ol-muted); }
.legal-section strong, .legal-intro strong, .legal-highlight strong { color: var(--ol-text); }
.legal-section a, .legal-intro a, .legal-highlight a { color: var(--ol-ink); }
.legal-num {
  background: rgba(37,99,235,0.10);
  color: var(--ol-ink);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px; height: 28px;
  font-weight: 700;
  font-size: 0.85rem;
  flex-shrink: 0;
}
.legal-updated { color: var(--ol-muted); font-size: 0.85rem; }

/* Tablas de cookies */
.cookie-table th { background: rgba(37,99,235,0.06); color: var(--ol-text); }
.cookie-table td { color: var(--ol-muted); }
.tag-tech, .tag-analytics { background: rgba(37,99,235,0.08); color: var(--ol-ink); }
.tag-pwa { background: rgba(20,184,166,0.10); color: var(--ol-teal); }

/* ─── HERO DE PÁGINA INTERIOR ───────────────────────────────── */
.page-hero {
  background:
    radial-gradient(circle at top right, rgba(37,99,235,0.12), transparent 42%),
    radial-gradient(circle at top left,  rgba(6,182,212,0.10), transparent 38%),
    linear-gradient(180deg, #FFFFFF 0%, #FAF9F7 100%);
  border-bottom: 1px solid var(--ol-border);
  padding: 56px 24px 48px;
  text-align: center;
}
.page-hero-inner { max-width: 680px; margin: 0 auto; }
.page-hero h1, .page-hero h2 { color: var(--ol-text); text-shadow: none; }
.page-hero h1 span, .page-hero h2 span { color: var(--ol-ink); }
.page-hero-sub, .page-hero p { color: var(--ol-muted); text-shadow: none; }

/* ─── FOOTER ────────────────────────────────────────────────── */
footer {
  background: #FFFFFF;
  border-top: 1px solid var(--ol-border);
  padding: 48px 0 40px;
  color: var(--ol-text);
  position: relative;
  z-index: 1;
}

/* Estructura multi-columna (páginas que usan .footer-inner) */
.footer-inner {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
}
.footer-brand { max-width: 220px; }
.footer-brand p {
  font-size: 0.84rem;
  color: var(--ol-soft);
  margin-top: 10px;
  line-height: 1.6;
}
.footer-col h4 {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ol-soft);
  margin-bottom: 14px;
}
.footer-col a {
  display: block;
  font-size: 0.875rem;
  color: var(--ol-muted);
  margin-bottom: 10px;
  transition: color 0.15s;
}
.footer-col a:hover { color: var(--ol-text); }

/* Barra inferior */
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--ol-border);
}
.footer-bottom span { font-size: 0.8rem; color: var(--ol-soft); }
.footer-legal { display: flex; gap: 16px; flex-wrap: wrap; }
.footer-legal a {
  font-size: 0.8rem;
  color: var(--ol-ink);
  transition: color 0.15s;
}
.footer-legal a:hover { color: var(--ol-ink-2); }

/* Estructura simple (páginas que usan .footer-box) */
.footer-box {
  display: flex;
  flex-wrap: wrap;
  gap: 24px 40px;
  justify-content: space-between;
  margin-bottom: 8px;
}
.footer-brand.simple {
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: none;
}
.footer-brand.simple img { width: 36px; height: 36px; object-fit: contain; border-radius: 8px; }
.footer-brand.simple strong { display: block; font-size: 0.95rem; color: var(--ol-text); }
.footer-brand.simple span  { font-size: 0.8rem; color: var(--ol-muted); }
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  align-items: center;
}
.footer-links a {
  font-size: 0.82rem;
  color: var(--ol-ink);
  transition: color 0.15s;
}
.footer-links a:hover { color: var(--ol-ink-2); }

/* ─── RESPONSIVE FOOTER ─────────────────────────────────────── */
@media (max-width: 640px) {
  .footer-inner  { flex-direction: column; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .footer-brand  { max-width: 100%; }
}