/* ═══════════════════════════════════════════════════════════════
   INSTRUCCIONES — para ingenieros, diseñadores y agentes de IA
   ═══════════════════════════════════════════════════════════════
   
   Este archivo es una GUIA COMPLETA de estilo y componentes
   para construir el sitio web de Digitabil.
   
   COMO USARLO:
   1. Cada seccion incluye comentarios explicativos
   2. Las variables CSS en :root son tu panel de control
   3. Todos los componentes son independientes y reutilizables
   4. Copia/pega lo que necesites en tu framework favorito
   
   TECNOLOGIAS:
   - CSS puro (variables + flexbox + grid)
   - Sin dependencias externas (solo Google Fonts)
   - JavaScript vanilla para interactividad
   - Accesibilidad ARIA incluida
   - Responsive mobile-first
   - Dark mode con prefers-color-scheme
   ═══════════════════════════════════════════════════════════════ */

/* ═══════════════════════════════════════════════════════════════
   SISTEMA DE DISENO — VARIABLES CSS
   
   Cambia los valores de :root para personalizar TODO el sitio
   - Colores primarios (marca)
   - Colores neutros (fondos, textos, bordes)
   - Tipografia (fuente, tamanos, pesos)
   - Espaciado (gap, padding, margin)
   - Bordes (radius)
   - Sombras
   - Transiciones
   ═══════════════════════════════════════════════════════════════ */
:root {
  /* BREAKPOINTS (usar @media (min-width: ...))
     Mobile:   0 — 639px
     Tablet:   640px — 1023px
     Desktop:  1024px — 1279px
     Wide:     1280px+ */

  /* COLOR PRIMARIO — Marca Digitabil */
  --color-primary:       #2563eb;
  --color-primary-dark:  #1d4ed8;
  --color-primary-light: #dbeafe;
  --color-primary-50:    #eff6ff;
  --color-primary-100:   #dbeafe;
  --color-primary-200:   #bfdbfe;
  --color-primary-300:   #93c5fd;
  --color-primary-400:   #60a5fa;
  --color-primary-500:   #2563eb;
  --color-primary-600:   #1d4ed8;
  --color-primary-700:   #1e40af;
  --color-primary-800:   #1e3a8a;
  --color-primary-900:   #172554;

  /* COLORES NEUTROS */
  --color-bg:       #ffffff;
  --color-bg-off:   #f8fafc;
  --color-bg-muted: #f1f5f9;
  --color-border:   #e2e8f0;
  --color-border-light: #f1f5f9;
  --color-text:     #0f172a;
  --color-text-secondary: #64748b;
  --color-text-muted: #94a3b8;
  --color-text-inverse: #ffffff;

  /* COLORES DE ESTADO */
  --color-success:       #16a34a;
  --color-success-light: #f0fdf4;
  --color-success-border:#bbf7d0;
  --color-info:          #2563eb;
  --color-info-light:    #eff6ff;
  --color-info-border:   #93c5fd;
  --color-warning:       #d97706;
  --color-warning-light: #fefce8;
  --color-warning-border:#fde68a;
  --color-error:         #dc2626;
  --color-error-light:   #fef2f2;
  --color-error-border:  #fecaca;

  /* TIPOGRAFIA — Inter */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI',
                 Roboto, Oxygen, Ubuntu, Cantarell, 'Helvetica Neue', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
  --text-xs:   0.75rem;
  --text-sm:   0.875rem;
  --text-base: 1rem;
  --text-lg:   1.125rem;
  --text-xl:   1.25rem;
  --text-2xl:  1.5rem;
  --text-3xl:  1.875rem;
  --text-4xl:  2.25rem;
  --text-5xl:  3rem;
  --text-6xl:  3.75rem;
  --text-7xl:  4.5rem;

  /* ESPACIADO */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* LAYOUT */
  --max-width-sm:  640px;
  --max-width-md:  800px;
  --max-width-lg:  1024px;
  --max-width-xl:  1280px;
  --max-width-2xl: 1440px;

  /* BORDES */
  --radius-sm:   4px;
  --radius-md:   8px;
  --radius-lg:   12px;
  --radius-xl:   16px;
  --radius-2xl:  24px;
  --radius-full: 9999px;

  /* SOMBRAS */
  --shadow-xs:   0 1px 2px rgba(15,23,42,0.05);
  --shadow-sm:   0 1px 3px rgba(15,23,42,0.08), 0 1px 2px rgba(15,23,42,0.04);
  --shadow-md:   0 4px 6px rgba(15,23,42,0.07), 0 2px 4px rgba(15,23,42,0.04);
  --shadow-lg:   0 10px 15px rgba(15,23,42,0.08), 0 4px 6px rgba(15,23,42,0.04);
  --shadow-xl:   0 20px 25px rgba(15,23,42,0.10), 0 8px 10px rgba(15,23,42,0.04);
  --shadow-2xl:  0 25px 50px rgba(15,23,42,0.15);

  /* TRANSICIONES */
  --transition-fast:   150ms ease;
  --transition-base:   250ms ease;
  --transition-slow:   400ms ease;

  /* MISC */
  --header-height: 72px;
}

/* MODO OSCURO — Sistema unificado con data-theme
   - data-theme="dark"  → oscuro manual o por sistema
   - data-theme="light" → claro manual (sobrescribe preferencia del sistema)
   - Sin atributo       → respeta prefers-color-scheme (fallback no-JS) */
[data-theme="dark"],
@media (prefers-color-scheme: dark) {
  :root {
    --color-bg:       #0b1120;
    --color-bg-off:   #111827;
    --color-bg-muted: #1e293b;
    --color-border:   #1e293b;
    --color-border-light: #1e293b;
    --color-text:     #f1f5f9;
    --color-text-secondary: #94a3b8;
    --color-text-muted: #64748b;
    --color-primary-light: #1e3a8a;
    --color-primary-50: #172554;
    --color-primary-100: #1e3a8a;
    --shadow-xs:   0 1px 2px rgba(0,0,0,0.3);
    --shadow-sm:   0 1px 3px rgba(0,0,0,0.4);
    --shadow-md:   0 4px 6px rgba(0,0,0,0.4);
    --shadow-lg:   0 10px 15px rgba(0,0,0,0.5);
    --shadow-xl:   0 20px 25px rgba(0,0,0,0.5);
    --shadow-2xl:  0 25px 50px rgba(0,0,0,0.6);
  }
}
/* data-theme explícito siempre gana sobre prefers-color-scheme */
[data-theme="dark"] {
  --color-bg:       #0b1120;
  --color-bg-off:   #111827;
  --color-bg-muted: #1e293b;
  --color-border:   #1e293b;
  --color-border-light: #1e293b;
  --color-text:     #f1f5f9;
  --color-text-secondary: #94a3b8;
  --color-text-muted: #64748b;
  --color-primary-light: #1e3a8a;
  --color-primary-50: #172554;
  --color-primary-100: #1e3a8a;
  --shadow-xs:   0 1px 2px rgba(0,0,0,0.3);
  --shadow-sm:   0 1px 3px rgba(0,0,0,0.4);
  --shadow-md:   0 4px 6px rgba(0,0,0,0.4);
  --shadow-lg:   0 10px 15px rgba(0,0,0,0.5);
  --shadow-xl:   0 20px 25px rgba(0,0,0,0.5);
  --shadow-2xl:  0 25px 50px rgba(0,0,0,0.6);
}
[data-theme="light"] {
  --color-bg:       #ffffff;
  --color-bg-off:   #f8fafc;
  --color-bg-muted: #f1f5f9;
  --color-border:   #e2e8f0;
  --color-border-light: #f1f5f9;
  --color-text:     #0f172a;
  --color-text-secondary: #64748b;
  --color-text-muted: #94a3b8;
  --color-primary-light: #dbeafe;
  --color-primary-50: #eff6ff;
  --color-primary-100: #dbeafe;
  --shadow-xs:   0 1px 2px rgba(15,23,42,0.05);
  --shadow-sm:   0 1px 3px rgba(15,23,42,0.08);
  --shadow-md:   0 4px 6px rgba(15,23,42,0.07);
  --shadow-lg:   0 10px 15px rgba(15,23,42,0.08);
  --shadow-xl:   0 20px 25px rgba(15,23,42,0.10);
  --shadow-2xl:  0 25px 50px rgba(15,23,42,0.15);
}

/* RESET & BASE */
*, *::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-family);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  min-height: 100vh;
}
img, video, canvas, svg { display: block; max-width: 100%; }
a { color: var(--color-primary); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--color-primary-dark); }
a:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; border-radius: 2px; }
button { font-family: inherit; cursor: pointer; border: none; background: none; font-size: inherit; }
button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: 2px solid var(--color-primary); outline-offset: 2px;
}
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--color-text); }
::selection { background: var(--color-primary); color: white; }

/* UTILIDADES */
.container { width: 100%; margin: 0 auto; padding: 0 var(--space-6); }
.container-sm { max-width: var(--max-width-sm); }
.container-md { max-width: var(--max-width-md); }
.container-lg { max-width: var(--max-width-lg); }
.container-xl { max-width: var(--max-width-xl); }
.container-2xl { max-width: var(--max-width-2xl); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }
.text-center { text-align: center; }
.text-primary { color: var(--color-primary); }
.text-muted { color: var(--color-text-secondary); }
.font-bold { font-weight: 700; }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mt-12 { margin-top: var(--space-12); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }
.mb-12 { margin-bottom: var(--space-12); }
.py-8 { padding-top: var(--space-8); padding-bottom: var(--space-8); }
.py-12 { padding-top: var(--space-12); padding-bottom: var(--space-12); }
.py-16 { padding-top: var(--space-16); padding-bottom: var(--space-16); }
.py-20 { padding-top: var(--space-20); padding-bottom: var(--space-20); }

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-6); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-6); }
@media (max-width: 1023px) { .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 639px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* ============================================================
   NAVBAR — Barra de navegacion principal
   
   - Sticky (se pega arriba al hacer scroll)
   - Fondo semitransparente con blur
   - Menu hamburguesa en mobile
   - Logo Digitabil con las dos partes coloreadas
   
   Customizacion:
   - Cambia --header-height para alterar la altura
   - Los links del menu estan en <nav> > <a>
   - Agrega un CTA button al final si lo deseas
   ============================================================ */
.site-header {
  position: sticky; top: 0; z-index: 100;
  height: var(--header-height);
  background: rgba(255,255,255,0.75);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition-base), border-color var(--transition-base);
  box-shadow: 0 1px 3px rgba(15,23,42,0.06);
}
[data-theme="dark"] .site-header {
  background: #0b1120;
  border-color: #1e293b;
  box-shadow: 0 1px 3px rgba(0,0,0,0.3);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}
[data-theme="light"] .site-header {
  background: rgba(255,255,255,0.75);
  border-color: var(--color-border);
  box-shadow: 0 1px 3px rgba(15,23,42,0.06);
}
@media (prefers-color-scheme: dark) {
  .site-header { background: #0b1120; border-color: #1e293b; box-shadow: 0 1px 3px rgba(0,0,0,0.3); backdrop-filter: none; -webkit-backdrop-filter: none; }
}
.header-inner {
  max-width: var(--max-width-2xl); margin: 0 auto; padding: 0 var(--space-6);
  height: 100%; display: flex; align-items: center; justify-content: space-between;
}
.logo {
  font-size: var(--text-2xl); font-weight: 800; letter-spacing: -1.5px;
  line-height: 1; user-select: none; text-decoration: none; flex-shrink: 0;
  display: inline-flex; align-items: center;
}
.logo .digit { color: var(--color-text); }
.logo .abil { color: var(--color-primary); }
.logo:hover { opacity: 0.9; }
.nav-desktop { display: flex; align-items: center; gap: var(--space-1); }
.nav-desktop a {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm); font-weight: 500;
  color: var(--color-text-secondary); border-radius: var(--radius-md);
  transition: all var(--transition-fast); text-decoration: none;
}
.nav-desktop a:hover, .nav-desktop a.active { color: var(--color-primary); background: var(--color-primary-50); }
.menu-toggle {
  display: none; width: 44px; height: 44px;
  align-items: center; justify-content: center;
  border-radius: var(--radius-md); color: var(--color-text);
  transition: background var(--transition-fast);
}
.menu-toggle:hover { background: var(--color-bg-muted); }
.mobile-menu {
  position: fixed; top: var(--header-height); left: 0;
  width: 100vw; height: calc(100vh - var(--header-height));
  background: var(--color-bg); border-top: 1px solid var(--color-border);
  padding: var(--space-6); display: flex; flex-direction: column; gap: var(--space-2);
  transform: translateX(100%); transition: transform var(--transition-base); z-index: 99;
}
[data-theme="dark"] .mobile-menu { background: #0b1120; border-color: #1e293b; }
[data-theme="light"] .mobile-menu { background: #ffffff; border-color: var(--color-border); }
@media (prefers-color-scheme: dark) { .mobile-menu { background: #0b1120; border-color: #1e293b; } }
.mobile-menu.open { transform: translateX(0); }
.mobile-menu a {
  padding: var(--space-3) var(--space-4); font-size: var(--text-lg); font-weight: 500;
  color: var(--color-text); border-radius: var(--radius-md);
  transition: background var(--transition-fast);
  display: block;
}
[data-theme="dark"] .mobile-menu a { color: #f1f5f9; }
[data-theme="light"] .mobile-menu a { color: var(--color-text); }
@media (prefers-color-scheme: dark) { .mobile-menu a { color: #f1f5f9; } }
.mobile-menu a:hover { background: var(--color-bg-muted); }
.theme-toggle {
  width: 40px; height: 40px; display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-md); color: var(--color-text-secondary);
  transition: all var(--transition-fast); font-size: var(--text-lg);
}
.theme-toggle:hover { background: var(--color-bg-muted); color: var(--color-text); }
@media (max-width: 767px) { .nav-desktop { display: none; } .menu-toggle { display: flex; } }

/* ============================================================
   BOTONES
   
   Variantes: primary | secondary | outline | ghost | link
   Tamanos:   sm | md (default) | lg | xl
   
   Uso: <button class="btn btn--primary">texto</button>
        <a class="btn btn--outline btn--lg">texto</a>
   ============================================================ */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: var(--space-2); font-family: var(--font-family); font-weight: 600;
  font-size: var(--text-sm); line-height: 1;
  padding: 0.625rem 1.25rem; border-radius: var(--radius-md);
  border: 2px solid transparent; cursor: pointer;
  transition: all var(--transition-fast); text-decoration: none;
  white-space: nowrap; user-select: none;
}
.btn:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }
.btn:disabled { opacity: 0.5; pointer-events: none; }
.btn--primary { background: var(--color-primary); color: white; border-color: var(--color-primary); }
.btn--primary:hover { background: var(--color-primary-dark); border-color: var(--color-primary-dark); color: white; }
.btn--secondary { background: var(--color-primary-light); color: var(--color-primary-dark); border-color: transparent; }
.btn--secondary:hover { background: var(--color-primary-200); color: var(--color-primary-700); }
.btn--outline { background: transparent; color: var(--color-primary); border-color: var(--color-primary); }
.btn--outline:hover { background: var(--color-primary); color: white; }
.btn--ghost { background: transparent; color: var(--color-text-secondary); border-color: transparent; }
.btn--ghost:hover { background: var(--color-bg-muted); color: var(--color-text); }
.btn--link { background: transparent; color: var(--color-primary); border-color: transparent; padding: 0; font-weight: 500; }
.btn--link:hover { color: var(--color-primary-dark); text-decoration: underline; }
.btn--sm { padding: 0.375rem 0.75rem; font-size: var(--text-xs); }
.btn--lg { padding: 0.875rem 1.75rem; font-size: var(--text-base); }
.btn--xl { padding: 1rem 2rem; font-size: var(--text-lg); }
.btn--block { width: 100%; }

/* ============================================================
   FORMULARIOS
   
   Inputs, textarea, select, checkbox, radio, toggle.
   Todos siguen el mismo estilo de borde y focus.
   ============================================================ */
.form-group { margin-bottom: var(--space-4); }
.form-label { display: block; font-size: var(--text-sm); font-weight: 600; color: var(--color-text); margin-bottom: var(--space-2); }
.form-label .required { color: var(--color-error); margin-left: 2px; }
.form-hint { font-size: var(--text-xs); color: var(--color-text-muted); margin-top: var(--space-1); }
.form-input, .form-select, .form-textarea {
  width: 100%; padding: 0.625rem 0.875rem; font-family: var(--font-family);
  font-size: var(--text-sm); color: var(--color-text); background: var(--color-bg);
  border: 1.5px solid var(--color-border); border-radius: var(--radius-md);
  transition: all var(--transition-fast); line-height: 1.5;
}
.form-input:hover, .form-select:hover, .form-textarea:hover { border-color: var(--color-text-muted); }
.form-input:focus, .form-select:focus, .form-textarea:focus { border-color: var(--color-primary); box-shadow: 0 0 0 3px var(--color-primary-light); outline: none; }
.form-input.error, .form-select.error, .form-textarea.error { border-color: var(--color-error); box-shadow: 0 0 0 3px var(--color-error-light); }
.form-textarea { min-height: 120px; resize: vertical; }
.form-select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 0.75rem center; background-size: 16px; padding-right: 2.5rem; }
.input-icon-wrap { position: relative; }
.input-icon-wrap .input-icon { position: absolute; left: 0.75rem; top: 50%; transform: translateY(-50%); color: var(--color-text-muted); pointer-events: none; }
.input-icon-wrap .form-input { padding-left: 2.5rem; }
.form-checkbox, .form-radio { display: flex; align-items: flex-start; gap: var(--space-3); cursor: pointer; font-size: var(--text-sm); color: var(--color-text); line-height: 1.5; }
.form-checkbox input[type="checkbox"], .form-radio input[type="radio"] {
  appearance: none; width: 18px; height: 18px; border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm); background: var(--color-bg); flex-shrink: 0;
  margin-top: 2px; cursor: pointer; transition: all var(--transition-fast); position: relative;
}
.form-checkbox input[type="checkbox"]:checked, .form-radio input[type="radio"]:checked { background: var(--color-primary); border-color: var(--color-primary); }
.form-checkbox input[type="checkbox"]:checked::after { content: ''; position: absolute; left: 4.5px; top: 1.5px; width: 5px; height: 9px; border: solid white; border-width: 0 2px 2px 0; transform: rotate(45deg); }
.form-radio input[type="radio"] { border-radius: 50%; }
.form-radio input[type="radio"]:checked::after { content: ''; position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%); width: 8px; height: 8px; border-radius: 50%; background: white; }
.toggle-wrap { display: flex; align-items: center; gap: var(--space-3); cursor: pointer; font-size: var(--text-sm); color: var(--color-text); }
.toggle-track { width: 44px; height: 24px; background: var(--color-border); border-radius: var(--radius-full); position: relative; transition: background var(--transition-fast); flex-shrink: 0; }
.toggle-track::after { content: ''; position: absolute; top: 2px; left: 2px; width: 20px; height: 20px; background: white; border-radius: 50%; transition: transform var(--transition-fast); box-shadow: 0 1px 3px rgba(0,0,0,0.15); }
.toggle-wrap input:checked + .toggle-track { background: var(--color-primary); }
.toggle-wrap input:checked + .toggle-track::after { transform: translateX(20px); }
.toggle-wrap input { position: absolute; opacity: 0; width: 0; height: 0; }

/* ============================================================
   TARJETAS (Cards)
   
   Varias variantes para diferentes usos:
   - card (generica)
   - card--feature (icono + titulo + desc)
   - card--course (badge + meta info)
   - card--testimonial (cita + avatar)
   - card--pricing (plan + precio + features)
   - card--team (foto + nombre + rol)
   ============================================================ */
.card { background: var(--color-bg); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--space-6); transition: all var(--transition-base); }
.card:hover { box-shadow: var(--shadow-md); border-color: var(--color-primary-200); }
.card--interactive { cursor: pointer; }
.card--interactive:hover { transform: translateY(-2px); }
.card--feature { text-align: center; padding: var(--space-8) var(--space-6); }
.card--feature .card-icon { width: 56px; height: 56px; margin: 0 auto var(--space-4); background: var(--color-primary-light); border-radius: var(--radius-lg); display: flex; align-items: center; justify-content: center; font-size: var(--text-2xl); color: var(--color-primary); transition: all var(--transition-base); }
.card--feature:hover .card-icon { background: var(--color-primary); color: white; }
.card--feature h3 { font-size: var(--text-lg); margin-bottom: var(--space-2); }
.card--feature p { font-size: var(--text-sm); color: var(--color-text-secondary); line-height: 1.6; }
.card--course { display: flex; flex-direction: column; gap: var(--space-3); }
.card--course .course-badge { align-self: flex-start; font-size: var(--text-xs); font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; padding: 0.2rem 0.75rem; border-radius: var(--radius-full); background: var(--color-primary-light); color: var(--color-primary-dark); }
.card--course h3 { font-size: var(--text-lg); }
.card--course p { font-size: var(--text-sm); color: var(--color-text-secondary); flex: 1; }
.card--course .course-meta-row { display: flex; gap: var(--space-4); font-size: var(--text-xs); color: var(--color-text-muted); padding-top: var(--space-3); border-top: 1px solid var(--color-border); }
.card--testimonial { position: relative; padding: var(--space-8); }
.card--testimonial .quote-icon { font-size: var(--text-4xl); color: var(--color-primary-200); line-height: 1; margin-bottom: var(--space-3); }
.card--testimonial blockquote { font-size: var(--text-sm); color: var(--color-text-secondary); line-height: 1.7; margin-bottom: var(--space-4); font-style: italic; }
.card--testimonial .testimonial-author { display: flex; align-items: center; gap: var(--space-3); }
.card--testimonial .testimonial-author .avatar { width: 40px; height: 40px; border-radius: 50%; background: var(--color-primary-light); color: var(--color-primary); display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: var(--text-sm); }
.card--testimonial .testimonial-author .author-name { font-weight: 600; font-size: var(--text-sm); }
.card--testimonial .testimonial-author .author-role { font-size: var(--text-xs); color: var(--color-text-muted); }
.card--pricing { text-align: center; padding: var(--space-8) var(--space-6); display: flex; flex-direction: column; gap: var(--space-4); }
.card--pricing.featured { border-color: var(--color-primary); border-width: 2px; position: relative; box-shadow: var(--shadow-lg); }
.card--pricing.featured .pricing-popular { position: absolute; top: -13px; left: 50%; transform: translateX(-50%); background: var(--color-primary); color: white; font-size: var(--text-xs); font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; padding: 0.25rem 1.25rem; border-radius: var(--radius-full); }
.card--pricing .pricing-plan { font-size: var(--text-lg); font-weight: 600; }
.card--pricing .pricing-price { font-size: var(--text-4xl); font-weight: 800; color: var(--color-text); }
.card--pricing .pricing-price span { font-size: var(--text-base); font-weight: 400; color: var(--color-text-muted); }
.card--pricing .pricing-desc { font-size: var(--text-sm); color: var(--color-text-secondary); }
.card--pricing .pricing-features { list-style: none; text-align: left; flex: 1; }
.card--pricing .pricing-features li { padding: var(--space-2) 0; font-size: var(--text-sm); color: var(--color-text-secondary); display: flex; align-items: center; gap: var(--space-2); border-bottom: 1px solid var(--color-border-light); }
.card--pricing .pricing-features li:last-child { border-bottom: none; }
.card--team { text-align: center; padding: var(--space-6); }
.card--team .team-photo { width: 96px; height: 96px; border-radius: 50%; margin: 0 auto var(--space-4); background: var(--color-primary-light); display: flex; align-items: center; justify-content: center; font-size: var(--text-3xl); font-weight: 800; color: var(--color-primary); }
.card--team h3 { font-size: var(--text-base); margin-bottom: var(--space-1); }
.card--team .team-role { font-size: var(--text-sm); color: var(--color-primary); font-weight: 500; margin-bottom: var(--space-2); }
.card--team p { font-size: var(--text-sm); color: var(--color-text-secondary); }

/* BADGES / TAGS */
.badge { display: inline-flex; align-items: center; gap: var(--space-1); font-size: var(--text-xs); font-weight: 600; line-height: 1; padding: 0.25rem 0.625rem; border-radius: var(--radius-full); white-space: nowrap; user-select: none; }
.badge--default { background: var(--color-bg-muted); color: var(--color-text-secondary); }
.badge--primary { background: var(--color-primary-light); color: var(--color-primary-dark); }
.badge--success { background: var(--color-success-light); color: var(--color-success); }
.badge--warning { background: var(--color-warning-light); color: var(--color-warning); }
.badge--error   { background: var(--color-error-light); color: var(--color-error); }
.badge--info    { background: var(--color-info-light); color: var(--color-info); }
.badge--sm { font-size: 0.625rem; padding: 0.15rem 0.5rem; }
.badge--lg { font-size: var(--text-sm); padding: 0.3rem 0.875rem; }

/* ALERTAS / CALLOUTS */
.alert { padding: var(--space-4) var(--space-5); border-radius: var(--radius-lg); display: flex; gap: var(--space-3); align-items: flex-start; font-size: var(--text-sm); line-height: 1.6; border: 1px solid transparent; }
.alert .alert-icon { font-size: var(--text-xl); flex-shrink: 0; margin-top: 1px; }
.alert .alert-content { flex: 1; }
.alert .alert-content p { margin: 0; }
.alert .alert-content .alert-title { font-weight: 600; margin-bottom: var(--space-1); }
.alert .alert-close { flex-shrink: 0; width: 24px; height: 24px; display: flex; align-items: center; justify-content: center; border-radius: var(--radius-sm); color: inherit; opacity: 0.6; cursor: pointer; transition: opacity var(--transition-fast); font-size: var(--text-base); }
.alert .alert-close:hover { opacity: 1; }
.alert--tip { background: var(--color-success-light); border-color: var(--color-success-border); color: #166534; }
.alert--info { background: var(--color-info-light); border-color: var(--color-info-border); color: #1e40af; }
.alert--warning { background: var(--color-warning-light); border-color: var(--color-warning-border); color: #854d0e; }
.alert--error { background: var(--color-error-light); border-color: var(--color-error-border); color: #991b1b; }
[data-theme="dark"] .alert--tip { background: #052e16; border-color: #166534; color: #bbf7d0; }
[data-theme="dark"] .alert--info { background: #172554; border-color: #1e3a8a; color: #93c5fd; }
[data-theme="dark"] .alert--warning { background: #422006; border-color: #713f12; color: #fde68a; }
[data-theme="dark"] .alert--error { background: #450a0a; border-color: #7f1d1d; color: #fecaca; }
@media (prefers-color-scheme: dark) {
  .alert--tip { background: #052e16; border-color: #166534; color: #bbf7d0; }
  .alert--info { background: #172554; border-color: #1e3a8a; color: #93c5fd; }
  .alert--warning { background: #422006; border-color: #713f12; color: #fde68a; }
  .alert--error { background: #450a0a; border-color: #7f1d1d; color: #fecaca; }
}

/* TABLAS */
.table-wrap { overflow-x: auto; margin: var(--space-4) 0; border: 1px solid var(--color-border); border-radius: var(--radius-lg); }
.table-wrap table { width: 100%; border-collapse: collapse; font-size: var(--text-sm); }
.table-wrap thead { background: var(--color-bg-off); }
.table-wrap th { text-align: left; font-weight: 600; padding: 0.75rem 1.25rem; border-bottom: 2px solid var(--color-border); color: var(--color-text); white-space: nowrap; font-size: var(--text-xs); text-transform: uppercase; letter-spacing: 0.05em; }
.table-wrap td { padding: 0.75rem 1.25rem; border-bottom: 1px solid var(--color-border-light); color: var(--color-text-secondary); }
.table-wrap tbody tr:last-child td { border-bottom: none; }
.table-wrap tbody tr:hover { background: var(--color-bg-off); }
.table-wrap tbody tr:nth-child(even) { background: var(--color-bg-muted); }
.table-wrap tbody tr:nth-child(even):hover { background: var(--color-bg-off); }

/* CODE BLOCK */
code { font-family: var(--font-mono); font-size: 0.875em; background: var(--color-bg-muted); padding: 0.125rem 0.375rem; border-radius: var(--radius-sm); color: var(--color-primary-dark); }
.code-block { background: #1e293b; color: #e2e8f0; border-radius: var(--radius-lg); margin: var(--space-4) 0; overflow: hidden; font-size: var(--text-sm); }
[data-theme] .code-block { background: #1e293b; color: #e2e8f0; } /* forzar tema fijo */
.code-block .code-header { display: flex; justify-content: space-between; align-items: center; padding: 0.5rem 1.25rem; background: #0f172a; border-bottom: 1px solid #334155; font-size: var(--text-xs); color: #94a3b8; }
.code-block .code-header .lang { font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; }
.code-block .code-header .copy-btn { background: none; border: 1px solid #334155; color: #94a3b8; padding: 0.2rem 0.6rem; border-radius: var(--radius-sm); cursor: pointer; font-size: 0.7rem; transition: all var(--transition-fast); font-family: var(--font-family); }
.code-block .code-header .copy-btn:hover { background: #334155; color: #e2e8f0; }
.code-block pre { padding: 1.25rem; overflow-x: auto; font-family: var(--font-mono); line-height: 1.6; tab-size: 2; }
.code-block pre code { background: none; padding: 0; color: inherit; font-size: 0.85rem; }

/* SECTION DIVIDER */
.section-divider { border: none; height: 1px; background: linear-gradient(to right, transparent, var(--color-border), transparent); margin: var(--space-16) 0; }

/* ACORDEON / FAQ */
.faq-item { border: 1px solid var(--color-border); border-radius: var(--radius-md); margin-bottom: var(--space-2); overflow: hidden; transition: all var(--transition-fast); }
.faq-item:hover { border-color: var(--color-primary-200); }
.faq-question { width: 100%; display: flex; justify-content: space-between; align-items: center; padding: var(--space-4) var(--space-5); font-size: var(--text-sm); font-weight: 600; color: var(--color-text); background: var(--color-bg); text-align: left; cursor: pointer; transition: all var(--transition-fast); }
.faq-question:hover { background: var(--color-bg-off); }
.faq-question .faq-icon { width: 20px; height: 20px; display: flex; align-items: center; justify-content: center; color: var(--color-text-muted); transition: transform var(--transition-fast); flex-shrink: 0; }
.faq-item.open .faq-question .faq-icon { transform: rotate(45deg); }
.faq-item.open .faq-question { color: var(--color-primary); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height var(--transition-base); }
.faq-item.open .faq-answer { max-height: 500px; }
.faq-answer-inner { padding: 0 var(--space-5) var(--space-5); font-size: var(--text-sm); color: var(--color-text-secondary); line-height: 1.7; }

/* TABS */
.tabs { margin: var(--space-4) 0; }
.tab-list { display: flex; gap: 0; border-bottom: 2px solid var(--color-border); overflow-x: auto; }
.tab-btn { padding: var(--space-3) var(--space-5); font-size: var(--text-sm); font-weight: 500; color: var(--color-text-secondary); border-bottom: 2px solid transparent; margin-bottom: -2px; white-space: nowrap; transition: all var(--transition-fast); cursor: pointer; background: none; }
.tab-btn:hover { color: var(--color-text); background: var(--color-bg-off); }
.tab-btn.active { color: var(--color-primary); border-bottom-color: var(--color-primary); font-weight: 600; }
.tab-panel { display: none; padding: var(--space-6) 0; animation: fadeIn 0.2s ease; }
.tab-panel.active { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

/* MODAL */
.modal-overlay { position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(0,0,0,0.5); display: flex; align-items: center; justify-content: center; z-index: 200; padding: var(--space-6); opacity: 0; pointer-events: none; transition: opacity var(--transition-base); }
.modal-overlay.open { opacity: 1; pointer-events: auto; }
.modal { background: var(--color-bg); border-radius: var(--radius-xl); width: 100%; max-width: 520px; max-height: 85vh; overflow-y: auto; box-shadow: var(--shadow-2xl); transform: scale(0.95) translateY(10px); transition: transform var(--transition-base); }
.modal-overlay.open .modal { transform: scale(1) translateY(0); }
.modal-header { display: flex; justify-content: space-between; align-items: center; padding: var(--space-5) var(--space-6); border-bottom: 1px solid var(--color-border); }
.modal-header h2 { font-size: var(--text-lg); font-weight: 600; }
.modal-close { width: 36px; height: 36px; display: flex; align-items: center; justify-content: center; border-radius: var(--radius-md); color: var(--color-text-muted); font-size: var(--text-xl); transition: all var(--transition-fast); cursor: pointer; }
.modal-close:hover { background: var(--color-bg-muted); color: var(--color-text); }
.modal-body { padding: var(--space-6); font-size: var(--text-sm); color: var(--color-text-secondary); line-height: 1.7; }
.modal-footer { padding: var(--space-4) var(--space-6); border-top: 1px solid var(--color-border); display: flex; justify-content: flex-end; gap: var(--space-3); }

/* PROGRESS BAR */
.progress-wrap { margin: var(--space-4) 0; }
.progress-label { display: flex; justify-content: space-between; font-size: var(--text-sm); color: var(--color-text-secondary); margin-bottom: var(--space-2); }
.progress-label .progress-pct { font-weight: 600; color: var(--color-text); }
.progress-track { width: 100%; height: 8px; background: var(--color-bg-muted); border-radius: var(--radius-full); overflow: hidden; }
.progress-bar { height: 100%; background: linear-gradient(90deg, var(--color-primary), var(--color-primary-dark)); border-radius: var(--radius-full); transition: width 0.6s ease; }
.progress-bar--sm { height: 4px; }
.progress-bar--lg { height: 12px; }
.progress-bar--indeterminate { width: 40%; animation: progressIndeterminate 1.5s ease infinite; }
@keyframes progressIndeterminate { 0% { transform: translateX(-100%); } 100% { transform: translateX(350%); } }

/* LOADER */
.spinner { width: 24px; height: 24px; border: 3px solid var(--color-border); border-top-color: var(--color-primary); border-radius: 50%; animation: spin 0.7s linear infinite; display: inline-block; }
.spinner--sm { width: 16px; height: 16px; border-width: 2px; }
.spinner--lg { width: 40px; height: 40px; border-width: 4px; }
@keyframes spin { to { transform: rotate(360deg); } }
.dots { display: flex; gap: 4px; }
.dots span { width: 8px; height: 8px; border-radius: 50%; background: var(--color-primary); animation: dots 1.4s ease infinite both; }
.dots span:nth-child(1) { animation-delay: 0s; }
.dots span:nth-child(2) { animation-delay: 0.2s; }
.dots span:nth-child(3) { animation-delay: 0.4s; }
@keyframes dots { 0%,80%,100% { transform: scale(0.6); opacity: 0.4; } 40% { transform: scale(1); opacity: 1; } }

/* TOOLTIP */
[data-tooltip] { position: relative; cursor: help; }
[data-tooltip]::after { content: attr(data-tooltip); position: absolute; bottom: calc(100% + 6px); left: 50%; transform: translateX(-50%) scale(0.9); background: #0f172a; color: white; font-size: 0.75rem; font-weight: 500; padding: 0.3rem 0.75rem; border-radius: var(--radius-sm); white-space: nowrap; pointer-events: none; opacity: 0; transition: all var(--transition-fast); }
[data-tooltip]:hover::after, [data-tooltip]:focus::after { opacity: 1; transform: translateX(-50%) scale(1); }

/* AVATAR */
.avatar { display: inline-flex; align-items: center; justify-content: center; border-radius: 50%; background: var(--color-primary-light); color: var(--color-primary); font-weight: 700; font-size: var(--text-sm); width: 40px; height: 40px; flex-shrink: 0; overflow: hidden; }
.avatar img { width: 100%; height: 100%; object-fit: cover; }
.avatar--sm { width: 32px; height: 32px; font-size: var(--text-xs); }
.avatar--lg { width: 56px; height: 56px; font-size: var(--text-xl); }
.avatar--xl { width: 80px; height: 80px; font-size: var(--text-3xl); }
.avatar--square { border-radius: var(--radius-lg); }
.avatar-group { display: flex; }
.avatar-group .avatar { margin-left: -8px; border: 2px solid var(--color-bg); }
.avatar-group .avatar:first-child { margin-left: 0; }

/* BREADCRUMBS */
.breadcrumbs { display: flex; align-items: center; gap: var(--space-2); font-size: var(--text-sm); color: var(--color-text-muted); padding: var(--space-4) 0; flex-wrap: wrap; }
.breadcrumbs a { color: var(--color-text-secondary); text-decoration: none; }
.breadcrumbs a:hover { color: var(--color-primary); }
.breadcrumbs .separator { color: var(--color-text-muted); user-select: none; }
.breadcrumbs .current { color: var(--color-text); font-weight: 500; }

/* PAGINACION */
.pagination { display: flex; align-items: center; gap: var(--space-1); justify-content: center; margin: var(--space-8) 0; }
.pagination a, .pagination span { display: inline-flex; align-items: center; justify-content: center; width: 40px; height: 40px; border-radius: var(--radius-md); font-size: var(--text-sm); font-weight: 500; color: var(--color-text-secondary); text-decoration: none; transition: all var(--transition-fast); }
.pagination a:hover { background: var(--color-bg-muted); color: var(--color-text); }
.pagination .active { background: var(--color-primary); color: white; }
.pagination .disabled { opacity: 0.4; pointer-events: none; }

/* ═══════════════════════════════════════════════════════════════
   GLOW SYSTEM — v4 final (desde glow-lab)
   
   USO:
     <h1 class="glow">Texto con brillo</h1>
     <h1 class="glow glow--strong glow--pulse">Brillo fuerte + late</h1>
     <h1 class="glow glow--particles">Brillo + particulas</h1>
     <h1 class="glow" style="--glow-color: #f59e0b;">Color custom</h1>
   
   VARIANTES:
     .glow               — Brillo sutil
     .glow--medium       — Brillo medio
     .glow--strong       — Brillo intenso
     .glow--pulse        — Pulso lento + barrido sutil (GPU)
     .glow--particles    — 14 particulas aceleradas (GPU)
   
   ═══════════════════════════════════════════════════════════════ */
.glow {
  --glow-color: currentColor;
  position: relative;
  display: inline-block;
  transform: translateZ(0);
  contain: layout style;
}
.glow {
  filter: drop-shadow(0 0 3px var(--glow-color));
}
.glow--medium {
  filter: drop-shadow(0 0 4px var(--glow-color))
         drop-shadow(0 0 10px var(--glow-color));
}
.glow--strong {
  filter: drop-shadow(0 0 3px var(--glow-color))
         drop-shadow(0 0 7px var(--glow-color))
         drop-shadow(0 0 14px var(--glow-color));
}

/* ─── PULSE LENTO + BARRIDO CERCANO ─── */
.glow--pulse {
  filter: drop-shadow(0 0 3px var(--glow-color))
         drop-shadow(0 0 8px var(--glow-color));
  will-change: filter;
  animation: pulseSlow 6s ease-in-out infinite;
}
@keyframes pulseSlow {
  0%   { filter: drop-shadow(0 0 2px var(--glow-color)) drop-shadow(0 0 5px var(--glow-color)); }
  20%  { filter: drop-shadow(0 0 4px var(--glow-color)) drop-shadow(0 0 10px var(--glow-color)); }
  40%  { filter: drop-shadow(0 0 3px var(--glow-color)) drop-shadow(0 0 7px var(--glow-color)); }
  55%  { filter: drop-shadow(0 0 5px var(--glow-color)) drop-shadow(0 0 12px var(--glow-color)); }
  75%  { filter: drop-shadow(0 0 2px var(--glow-color)) drop-shadow(0 0 6px var(--glow-color)); }
  100% { filter: drop-shadow(0 0 2px var(--glow-color)) drop-shadow(0 0 5px var(--glow-color)); }
}
.glow--pulse::before {
  content: '';
  position: absolute;
  inset: -8px;
  background: linear-gradient(90deg, transparent 0%,
    color-mix(in srgb, var(--glow-color) 8%, transparent) 40%,
    color-mix(in srgb, var(--glow-color) 15%, transparent) 50%,
    color-mix(in srgb, var(--glow-color) 8%, transparent) 60%,
    transparent 100%);
  filter: blur(6px);
  z-index: -1;
  pointer-events: none;
  will-change: transform;
  opacity: 0.6;
  animation: sweepLento 8s ease-in-out infinite;
}
@keyframes sweepLento {
  0%   { transform: translateZ(0) translateX(-20%); opacity: 0.4; }
  30%  { opacity: 0.7; }
  50%  { transform: translateZ(0) translateX(20%); opacity: 0.5; }
  70%  { opacity: 0.7; }
  100% { transform: translateZ(0) translateX(-20%); opacity: 0.4; }
}
@supports not (color: color-mix(in srgb, red, blue)) {
  .glow--pulse::before { background: linear-gradient(90deg, transparent 0%, rgba(37,99,235,0.08) 40%, rgba(37,99,235,0.15) 50%, rgba(37,99,235,0.08) 60%, transparent 100%); }
}

/* ─── PARTICULAS (14 por elemento) ─── */
.glow--particles {
  display: inline-block;
}
.glow--particles::before,
.glow--particles::after,
.glow--particles .gp {
  position: absolute;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--glow-color);
  pointer-events: none;
  will-change: transform, opacity;
  z-index: 1;
  opacity: 0;
}
.glow--particles::before            { top: 0; left: 50%; }
.glow--particles::after             { top: 50%; right: 0; }
.glow--particles .gp:nth-child(1)   { bottom: 0; left: 30%; }
.glow--particles .gp:nth-child(2)   { top: 30%; left: 0; }
.glow--particles .gp:nth-child(3)   { top: 0; left: 10%; }
.glow--particles .gp:nth-child(4)   { bottom: 0; right: 20%; }
.glow--particles .gp:nth-child(5)   { bottom: 30%; left: 5%; }
.glow--particles .gp:nth-child(6)   { top: 60%; right: 5%; }
.glow--particles .gp:nth-child(7)   { top: 15%; left: 25%; }
.glow--particles .gp:nth-child(8)   { bottom: 15%; right: 30%; }
.glow--particles .gp:nth-child(9)   { top: 45%; left: 15%; }
.glow--particles .gp:nth-child(10)  { bottom: 45%; right: 15%; }
.glow--particles .gp:nth-child(11)  { top: 80%; left: 40%; }
.glow--particles .gp:nth-child(12)  { bottom: 70%; left: 70%; }
.glow--particles::before            { animation: pTop 0.35s cubic-bezier(0.3,0,0.9,1) infinite; }
.glow--particles::after             { animation: pRight 0.3s cubic-bezier(0.3,0,0.9,1) infinite 0.05s; }
.glow--particles .gp:nth-child(1)   { animation: pBot 0.4s cubic-bezier(0.3,0,0.9,1) infinite 0.1s; }
.glow--particles .gp:nth-child(2)   { animation: pLeft 0.25s cubic-bezier(0.3,0,0.9,1) infinite 0.02s; }
.glow--particles .gp:nth-child(3)   { animation: pTL 0.3s cubic-bezier(0.3,0,0.9,1) infinite 0.06s; }
.glow--particles .gp:nth-child(4)   { animation: pBR 0.38s cubic-bezier(0.3,0,0.9,1) infinite 0.12s; }
.glow--particles .gp:nth-child(5)   { animation: pBL 0.28s cubic-bezier(0.3,0,0.9,1) infinite 0.04s; }
.glow--particles .gp:nth-child(6)   { animation: pTR 0.35s cubic-bezier(0.3,0,0.9,1) infinite 0.08s; }
.glow--particles .gp:nth-child(7)   { animation: pTop2 0.32s cubic-bezier(0.3,0,0.9,1) infinite 0.14s; }
.glow--particles .gp:nth-child(8)   { animation: pBR2 0.42s cubic-bezier(0.3,0,0.9,1) infinite 0.18s; }
.glow--particles .gp:nth-child(9)   { animation: pLeft2 0.27s cubic-bezier(0.3,0,0.9,1) infinite 0.03s; }
.glow--particles .gp:nth-child(10)  { animation: pRight2 0.33s cubic-bezier(0.3,0,0.9,1) infinite 0.1s; }
.glow--particles .gp:nth-child(11)  { animation: pBot2 0.37s cubic-bezier(0.3,0,0.9,1) infinite 0.16s; }
.glow--particles .gp:nth-child(12)  { animation: pTL2 0.3s cubic-bezier(0.3,0,0.9,1) infinite 0.07s; }
@keyframes pTop  { 0% { opacity:0.8; transform:translateZ(0) translate(0,0) scale(0.3); } 10% { opacity:0.7; transform:translateZ(0) translate(0,-3px) scale(0.4); } 60% { opacity:0.4; transform:translateZ(0) translate(0,-16px) scale(0.6); } 100% { opacity:0; transform:translateZ(0) translate(0,-55px) scale(0.15); } }
@keyframes pRight { 0% { opacity:0.7; transform:translateZ(0) translate(0,0) scale(0.3); } 10% { opacity:0.6; transform:translateZ(0) translate(4px,0) scale(0.4); } 60% { opacity:0.3; transform:translateZ(0) translate(18px,0) scale(0.6); } 100% { opacity:0; transform:translateZ(0) translate(60px,0) scale(0.15); } }
@keyframes pBot  { 0% { opacity:0.7; transform:translateZ(0) translate(0,0) scale(0.3); } 10% { opacity:0.6; transform:translateZ(0) translate(1px,3px) scale(0.4); } 60% { opacity:0.3; transform:translateZ(0) translate(6px,18px) scale(0.6); } 100% { opacity:0; transform:translateZ(0) translate(20px,60px) scale(0.15); } }
@keyframes pLeft { 0% { opacity:0.8; transform:translateZ(0) translate(0,0) scale(0.3); } 10% { opacity:0.7; transform:translateZ(0) translate(-4px,0) scale(0.4); } 60% { opacity:0.4; transform:translateZ(0) translate(-18px,0) scale(0.6); } 100% { opacity:0; transform:translateZ(0) translate(-60px,0) scale(0.15); } }
@keyframes pTL   { 0% { opacity:0.6; transform:translateZ(0) translate(0,0) scale(0.3); } 10% { opacity:0.5; transform:translateZ(0) translate(-2px,-2px) scale(0.4); } 60% { opacity:0.3; transform:translateZ(0) translate(-11px,-14px) scale(0.6); } 100% { opacity:0; transform:translateZ(0) translate(-38px,-48px) scale(0.15); } }
@keyframes pBR   { 0% { opacity:0.6; transform:translateZ(0) translate(0,0) scale(0.3); } 10% { opacity:0.5; transform:translateZ(0) translate(2px,2px) scale(0.4); } 60% { opacity:0.3; transform:translateZ(0) translate(14px,14px) scale(0.6); } 100% { opacity:0; transform:translateZ(0) translate(48px,45px) scale(0.15); } }
@keyframes pBL   { 0% { opacity:0.6; transform:translateZ(0) translate(0,0) scale(0.3); } 10% { opacity:0.5; transform:translateZ(0) translate(-3px,1px) scale(0.4); } 60% { opacity:0.3; transform:translateZ(0) translate(-15px,10px) scale(0.6); } 100% { opacity:0; transform:translateZ(0) translate(-50px,32px) scale(0.15); } }
@keyframes pTR   { 0% { opacity:0.5; transform:translateZ(0) translate(0,0) scale(0.3); } 10% { opacity:0.4; transform:translateZ(0) translate(3px,-2px) scale(0.4); } 60% { opacity:0.25; transform:translateZ(0) translate(16px,-13px) scale(0.6); } 100% { opacity:0; transform:translateZ(0) translate(55px,-42px) scale(0.15); } }
@keyframes pTop2  { 0% { opacity:0.6; transform:translateZ(0) translate(0,0) scale(0.3); } 10% { opacity:0.5; transform:translateZ(0) translate(0,-2px) scale(0.4); } 60% { opacity:0.3; transform:translateZ(0) translate(0,-12px) scale(0.6); } 100% { opacity:0; transform:translateZ(0) translate(0,-40px) scale(0.15); } }
@keyframes pBR2   { 0% { opacity:0.5; transform:translateZ(0) translate(0,0) scale(0.3); } 10% { opacity:0.4; transform:translateZ(0) translate(3px,3px) scale(0.4); } 60% { opacity:0.25; transform:translateZ(0) translate(12px,10px) scale(0.6); } 100% { opacity:0; transform:translateZ(0) translate(40px,35px) scale(0.15); } }
@keyframes pLeft2 { 0% { opacity:0.6; transform:translateZ(0) translate(0,0) scale(0.3); } 10% { opacity:0.5; transform:translateZ(0) translate(-3px,0) scale(0.4); } 60% { opacity:0.3; transform:translateZ(0) translate(-12px,0) scale(0.6); } 100% { opacity:0; transform:translateZ(0) translate(-45px,0) scale(0.15); } }
@keyframes pRight2 { 0% { opacity:0.5; transform:translateZ(0) translate(0,0) scale(0.3); } 10% { opacity:0.4; transform:translateZ(0) translate(3px,0) scale(0.4); } 60% { opacity:0.25; transform:translateZ(0) translate(14px,0) scale(0.6); } 100% { opacity:0; transform:translateZ(0) translate(50px,0) scale(0.15); } }
@keyframes pBot2  { 0% { opacity:0.5; transform:translateZ(0) translate(0,0) scale(0.3); } 10% { opacity:0.4; transform:translateZ(0) translate(1px,2px) scale(0.4); } 60% { opacity:0.25; transform:translateZ(0) translate(5px,14px) scale(0.6); } 100% { opacity:0; transform:translateZ(0) translate(15px,48px) scale(0.15); } }
@keyframes pTL2   { 0% { opacity:0.5; transform:translateZ(0) translate(0,0) scale(0.3); } 10% { opacity:0.4; transform:translateZ(0) translate(-2px,-1px) scale(0.4); } 60% { opacity:0.25; transform:translateZ(0) translate(-8px,-10px) scale(0.6); } 100% { opacity:0; transform:translateZ(0) translate(-30px,-35px) scale(0.15); } }

/* Boton con particulas: aseguramos que se posicionen en bordes del boton */
.btn.glow--particles { position: relative; }
.btn.glow--particles .gp { position: absolute; }

/* Texto con gradiente (bonus) */
.text-gradient {
  background: linear-gradient(135deg, var(--color-primary), #a855f7, var(--color-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.text-gradient--warm {
  background: linear-gradient(135deg, var(--color-primary), #f59e0b);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ============================================================
   HERO — Seccion principal de portada
   
   Variantes:
   - hero (centered) — texto centrado con CTA
   - hero--split — texto a la izquierda, imagen a la derecha
   ============================================================ */
.hero { padding: var(--space-20) 0 var(--space-16); text-align: center; position: relative; overflow: hidden; }
.hero h1 { font-size: var(--text-5xl); font-weight: 800; letter-spacing: -0.03em; line-height: 1.1; margin-bottom: var(--space-4); max-width: 900px; margin-left: auto; margin-right: auto; }
.hero h1 .highlight { color: var(--color-primary); }
.hero .hero-subtitle { font-size: var(--text-lg); color: var(--color-text-secondary); max-width: 650px; margin: 0 auto var(--space-8); line-height: 1.6; }
.hero .hero-actions { display: flex; gap: var(--space-3); justify-content: center; flex-wrap: wrap; }
.hero .hero-meta { margin-top: var(--space-8); display: flex; justify-content: center; gap: var(--space-8); flex-wrap: wrap; font-size: var(--text-sm); color: var(--color-text-muted); }
.hero--split { text-align: left; display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-12); align-items: center; }
.hero--split h1 { font-size: var(--text-5xl); margin-left: 0; }
.hero--split .hero-subtitle { margin-left: 0; }
.hero--split .hero-actions { justify-content: flex-start; }
.hero--split .hero-visual { display: flex; align-items: center; justify-content: center; }
.hero--split .hero-visual .hero-placeholder { width: 100%; aspect-ratio: 4/3; background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary-200)); border-radius: var(--radius-2xl); display: flex; align-items: center; justify-content: center; color: var(--color-primary); font-size: var(--text-6xl); }
@media (max-width: 1023px) {
  .hero { padding: var(--space-16) 0 var(--space-12); }
  .hero h1 { font-size: var(--text-4xl); }
  .hero--split { grid-template-columns: 1fr; text-align: center; gap: var(--space-8); }
  .hero--split h1 { margin-left: auto; }
  .hero--split .hero-actions { justify-content: center; }
}
@media (max-width: 639px) {
  .hero h1 { font-size: var(--text-3xl); }
  .hero .hero-meta { gap: var(--space-4); flex-direction: column; align-items: center; }
}

/* ============================================================
   HERO OVERLAY — Imagen de fondo con texto superpuesto
   
   Uso: .hero.hero--overlay con una imagen de fondo inline
   
   <section class="hero hero--overlay" style="background-image: url(...);">
     <div class="hero-overlay-bg"></div>
     <div class="container">...</texto>...</div>
   </section>
   
   El gradiente oscuro asegura legibilidad del texto.
   ============================================================ */
.hero--overlay {
  position: relative;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-20) var(--space-6);
  color: white;
}
.hero--overlay .hero-overlay-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(15,23,42,0.85) 0%,
    rgba(15,23,42,0.65) 40%,
    rgba(37,99,235,0.4) 100%
  );
  pointer-events: none;
}
.hero--overlay > .container { position: relative; z-index: 1; }
.hero--overlay h1 { color: white; }
.hero--overlay .hero-subtitle { color: rgba(255,255,255,0.8); }
.hero--overlay .hero-meta { color: rgba(255,255,255,0.6); }
.hero--overlay .btn--outline { border-color: rgba(255,255,255,0.6); color: white; }
.hero--overlay .btn--outline:hover { background: rgba(255,255,255,0.15); border-color: white; }

/* ============================================================
   HERO DIAGONAL — Division diagonal entre texto e imagen
   
   La imagen se muestra en la mitad derecha con corte diagonal.
   Ideal para landing pages con personalidad.
   ============================================================ */
.hero--diagonal {
  position: relative;
  overflow: hidden;
  padding: var(--space-20) 0;
}
.hero--diagonal .diagonal-bg {
  position: absolute;
  top: 0; right: 0;
  width: 55%;
  height: 110%;
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary-200));
  clip-path: polygon(15% 0, 100% 0, 100% 100%, 0% 100%);
  z-index: 0;
}
.hero--diagonal > .container {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: center;
}
.hero--diagonal .diagonal-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero--diagonal .diagonal-visual img,
.hero--diagonal .diagonal-visual .placeholder {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-xl);
}
.hero--diagonal .diagonal-visual .placeholder {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-6xl);
  color: white;
}
@media (max-width: 1023px) {
  .hero--diagonal .diagonal-bg { width: 100%; height: 40%; clip-path: polygon(0 0, 100% 0, 100% 100%, 0 85%); }
  .hero--diagonal > .container { grid-template-columns: 1fr; text-align: center; }
}

/* ============================================================
   SECTION OVERLAP — Texto e imagen solapados
   
   El texto flota sobre la imagen, saliendose del contenedor.
   Ideal para secciones "Acerca de", "Servicios destacados".
   ============================================================ */
.section-overlap {
  position: relative;
  padding: var(--space-16) 0;
}
.section-overlap .overlap-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  align-items: center;
}
.section-overlap .overlap-image {
  position: relative;
  z-index: 0;
}
.section-overlap .overlap-image img,
.section-overlap .overlap-image .placeholder {
  width: 100%;
  aspect-ratio: 5/4;
  object-fit: cover;
  border-radius: var(--radius-2xl);
}
.section-overlap .overlap-image .placeholder {
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary-200));
  display: flex; align-items: center; justify-content: center;
  font-size: var(--text-6xl); color: var(--color-primary);
}
.section-overlap .overlap-text {
  position: relative;
  z-index: 1;
  margin-left: -10%;
  padding: var(--space-10);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-lg);
}
.section-overlap .overlap-text h2 { font-size: var(--text-4xl); font-weight: 800; margin-bottom: var(--space-4); }
.section-overlap .overlap-text p { color: var(--color-text-secondary); margin-bottom: var(--space-4); line-height: 1.7; }
@media (max-width: 1023px) {
  .section-overlap .overlap-grid { grid-template-columns: 1fr; }
  .section-overlap .overlap-text { margin-left: 0; margin-top: -10%; }
}
@media (max-width: 639px) {
  .section-overlap .overlap-text { padding: var(--space-6); margin-top: -15%; }
  .section-overlap .overlap-text h2 { font-size: var(--text-3xl); }
}

/* ============================================================
   FRAME CUT — Imagen que rompe el marco
   
   La imagen se sale del contenedor por un lado. Da una
   sensacion dinamica y moderna. Ideal para destacar servicios.
   ============================================================ */
.section-framecut {
  position: relative;
  padding: var(--space-12) 0;
}
.section-framecut .framecut-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: var(--space-12);
  align-items: center;
}
.section-framecut .framecut-image {
  position: relative;
}
.section-framecut .framecut-image img,
.section-framecut .framecut-image .placeholder {
  width: 110%;
  max-width: none;
  aspect-ratio: 4/3;
  object-fit: cover;
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-xl);
}
.section-framecut .framecut-image .placeholder {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  display: flex; align-items: center; justify-content: center;
  font-size: var(--text-6xl); color: white;
}
.section-framecut .framecut-content h2 { font-size: var(--text-4xl); font-weight: 800; margin-bottom: var(--space-4); }
.section-framecut .framecut-content p { color: var(--color-text-secondary); margin-bottom: var(--space-4); line-height: 1.7; }
.section-framecut .framecut-decor {
  position: absolute;
  width: 120px; height: 120px;
  border: 2px solid var(--color-primary-200);
  border-radius: var(--radius-lg);
  z-index: -1;
  top: -20px; left: -20px;
  pointer-events: none;
}
@media (max-width: 1023px) {
  .section-framecut .framecut-grid { grid-template-columns: 1fr; gap: var(--space-8); }
  .section-framecut .framecut-image img,
  .section-framecut .framecut-image .placeholder { width: 100%; }
}

/* ============================================================
   CARD COVER — Tarjeta con imagen de fondo y texto superpuesto
   
   Para cursos, categorias, blog posts. La imagen cubre toda
   la tarjeta con un gradiente oscuro para legibilidad.
   
   <div class="card--cover" style="background-image: url(...);">
     <span class="badge badge--primary">Categoria</span>
     <h3>Titulo</h3>
     <p>Descripcion...</p>
   </div>
   ============================================================ */
.card--cover {
  position: relative;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  border-radius: var(--radius-xl);
  min-height: 320px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-8);
  color: white;
  overflow: hidden;
  cursor: pointer;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  border: none;
  will-change: transform;
}
.card--cover::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(15,23,42,0.9) 0%,
    rgba(15,23,42,0.4) 50%,
    rgba(15,23,42,0.1) 100%
  );
  pointer-events: none;
  transition: opacity var(--transition-base);
}
.card--cover:hover::before { opacity: 0.85; }
.card--cover:hover { transform: translateY(-4px) scale(1.03); box-shadow: var(--shadow-xl); }
.card--cover > * { position: relative; z-index: 1; }
.card--cover .badge { align-self: flex-start; margin-bottom: var(--space-3); }
.card--cover h3 { font-size: var(--text-xl); font-weight: 700; color: white; margin-bottom: var(--space-2); }
.card--cover .cover-body {
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  transition: max-height 0.4s ease, opacity 0.4s ease;
}
.card--cover:hover .cover-body {
  max-height: 200px;
  opacity: 1;
}
.card--cover .cover-body p { font-size: var(--text-sm); color: rgba(255,255,255,0.75); line-height: 1.6; margin-bottom: 0; }
.card--cover .cover-body .cover-meta { display: flex; gap: var(--space-4); font-size: var(--text-xs); color: rgba(255,255,255,0.6); margin-top: var(--space-3); padding-top: var(--space-3); border-top: 1px solid rgba(255,255,255,0.15); }

/* Variante con gradiente de color en vez de imagen */
.card--cover.card--cover-gradient::before { display: none; }
.card--cover.card--cover-gradient {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
}

/* ─── Card Cover Hover Glow + Particles ───
   Al hacer hover: glow sutil + particulas que brotan de los bordes.
   Aparecen/desaparecen con transicion suave (opacity 0.4s).
   No usamos glow--particles para no interferir con glow--pulse. */
.card--cover-hoverglow {
  transition: transform var(--transition-base), box-shadow var(--transition-base), filter 0.5s ease;
}
.card--cover-hoverglow:hover {
  filter: drop-shadow(0 0 4px rgba(255,255,255,0.3)) drop-shadow(0 0 12px rgba(255,255,255,0.15));
}
.card--cover-hoverglow .gp {
  position: absolute;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: rgba(255,255,255,0.7);
  pointer-events: none;
  will-change: opacity, transform;
  z-index: 1;
  opacity: 0;
  transition: opacity 0.4s ease;
}
.card--cover-hoverglow:hover .gp { opacity: 1; }
/* Posiciones alrededor del perimetro de la card */
.card--cover-hoverglow .gp:nth-of-type(1)  { top: 5%; left: 50%; }
.card--cover-hoverglow .gp:nth-of-type(2)  { top: 50%; right: 5%; }
.card--cover-hoverglow .gp:nth-of-type(3)  { bottom: 10%; left: 30%; }
.card--cover-hoverglow .gp:nth-of-type(4)  { top: 30%; left: 5%; }
.card--cover-hoverglow .gp:nth-of-type(5)  { bottom: 5%; left: 60%; }
.card--cover-hoverglow .gp:nth-of-type(6)  { top: 60%; right: 10%; }
.card--cover-hoverglow .gp:nth-of-type(7)  { bottom: 30%; right: 5%; }
.card--cover-hoverglow .gp:nth-of-type(8)  { top: 10%; left: 20%; }
.card--cover-hoverglow .gp:nth-of-type(9)  { bottom: 20%; left: 80%; }
/* Animaciones al hover */
.card--cover-hoverglow:hover .gp:nth-of-type(1)  { animation: cB1 1.2s ease-out infinite; }
.card--cover-hoverglow:hover .gp:nth-of-type(2)  { animation: cB2 1.0s ease-out infinite 0.15s; }
.card--cover-hoverglow:hover .gp:nth-of-type(3)  { animation: cB3 1.3s ease-out infinite 0.3s; }
.card--cover-hoverglow:hover .gp:nth-of-type(4)  { animation: cB4 1.1s ease-out infinite 0.05s; }
.card--cover-hoverglow:hover .gp:nth-of-type(5)  { animation: cB5 1.4s ease-out infinite 0.2s; }
.card--cover-hoverglow:hover .gp:nth-of-type(6)  { animation: cB6 1.0s ease-out infinite 0.4s; }
.card--cover-hoverglow:hover .gp:nth-of-type(7)  { animation: cB7 1.2s ease-out infinite 0.1s; }
.card--cover-hoverglow:hover .gp:nth-of-type(8)  { animation: cB8 1.3s ease-out infinite 0.25s; }
.card--cover-hoverglow:hover .gp:nth-of-type(9)  { animation: cB9 1.1s ease-out infinite 0.35s; }
@keyframes cB1 { 0% { opacity:0.7; transform:translateZ(0) translate(0,0) scale(0.4); } 15% { opacity:0.5; transform:translateZ(0) translate(0,-25px) scale(1); } 100% { opacity:0; transform:translateZ(0) translate(0,-50px) scale(0.4); } }
@keyframes cB2 { 0% { opacity:0.6; transform:translateZ(0) translate(0,0) scale(0.4); } 15% { opacity:0.4; transform:translateZ(0) translate(30px,0) scale(1); } 100% { opacity:0; transform:translateZ(0) translate(55px,0) scale(0.4); } }
@keyframes cB3 { 0% { opacity:0.6; transform:translateZ(0) translate(0,0) scale(0.4); } 15% { opacity:0.4; transform:translateZ(0) translate(-20px,28px) scale(1); } 100% { opacity:0; transform:translateZ(0) translate(-38px,52px) scale(0.4); } }
@keyframes cB4 { 0% { opacity:0.7; transform:translateZ(0) translate(0,0) scale(0.4); } 15% { opacity:0.5; transform:translateZ(0) translate(-35px,0) scale(1); } 100% { opacity:0; transform:translateZ(0) translate(-60px,0) scale(0.4); } }
@keyframes cB5 { 0% { opacity:0.5; transform:translateZ(0) translate(0,0) scale(0.4); } 15% { opacity:0.3; transform:translateZ(0) translate(10px,35px) scale(1); } 100% { opacity:0; transform:translateZ(0) translate(20px,60px) scale(0.4); } }
@keyframes cB6 { 0% { opacity:0.5; transform:translateZ(0) translate(0,0) scale(0.4); } 15% { opacity:0.3; transform:translateZ(0) translate(35px,25px) scale(1); } 100% { opacity:0; transform:translateZ(0) translate(60px,45px) scale(0.4); } }
@keyframes cB7 { 0% { opacity:0.6; transform:translateZ(0) translate(0,0) scale(0.4); } 15% { opacity:0.4; transform:translateZ(0) translate(-35px,15px) scale(1); } 100% { opacity:0; transform:translateZ(0) translate(-60px,30px) scale(0.4); } }
@keyframes cB8 { 0% { opacity:0.5; transform:translateZ(0) translate(0,0) scale(0.4); } 15% { opacity:0.3; transform:translateZ(0) translate(-15px,-30px) scale(1); } 100% { opacity:0; transform:translateZ(0) translate(-28px,-55px) scale(0.4); } }
@keyframes cB9 { 0% { opacity:0.4; transform:translateZ(0) translate(0,0) scale(0.4); } 15% { opacity:0.2; transform:translateZ(0) translate(20px,30px) scale(1); } 100% { opacity:0; transform:translateZ(0) translate(38px,55px) scale(0.4); } }

/* ============================================================
   BANNER FULL — Banda completa con imagen de fondo
   
   Similar al CTA banner pero con imagen de fondo.
   Ocupa todo el ancho disponible, texto centrado.
   ============================================================ */
.banner-full {
  position: relative;
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  padding: var(--space-20) var(--space-6);
  text-align: center;
  color: white;
  overflow: hidden;
}
.banner-full::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(15,23,42,0.8), rgba(37,99,235,0.5));
  pointer-events: none;
}
.banner-full > * { position: relative; z-index: 1; }
.banner-full h2 { font-size: var(--text-5xl); font-weight: 800; color: white; margin-bottom: var(--space-4); }
.banner-full p { font-size: var(--text-lg); opacity: 0.9; max-width: 600px; margin: 0 auto var(--space-8); }
@media (max-width: 639px) {
  .banner-full { padding: var(--space-12) var(--space-6); background-attachment: scroll; }
  .banner-full h2 { font-size: var(--text-3xl); }
}

/* ============================================================
   SECTION ASYMMETRIC — Cuadricula asimetrica para
   mostrar contenido de forma menos rigida.
   
   3 columnas con alturas variadas. Ideal para
   categorias, blog, highlights.
   ============================================================ */
.asymmetric-grid {
  display: grid;
  grid-template-columns: 1fr 0.8fr 1.2fr;
  grid-auto-rows: minmax(200px, auto);
  gap: var(--space-4);
}
.asymmetric-grid > *:nth-child(2) { margin-top: var(--space-8); }
.asymmetric-grid > *:nth-child(4) { margin-top: var(--space-4); }
.asymmetric-grid > *:nth-child(5) { margin-top: -var(--space-4); }
@media (max-width: 1023px) {
  .asymmetric-grid { grid-template-columns: 1fr 1fr; }
  .asymmetric-grid > *:nth-child(2),
  .asymmetric-grid > *:nth-child(4),
  .asymmetric-grid > *:nth-child(5) { margin-top: 0; }
}
@media (max-width: 639px) {
  .asymmetric-grid { grid-template-columns: 1fr; }
}

/* SECTION HEADER */
.section-header { text-align: center; max-width: 700px; margin: 0 auto var(--space-12); }
.section-header .section-badge { display: inline-block; font-size: var(--text-xs); font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; padding: 0.25rem 1rem; border-radius: var(--radius-full); background: var(--color-primary-light); color: var(--color-primary); margin-bottom: var(--space-4); }
[data-theme="dark"] .section-header .section-badge { background: var(--color-primary-800); color: var(--color-primary-200); }
.section-header h2 { font-size: var(--text-4xl); font-weight: 800; letter-spacing: -0.02em; margin-bottom: var(--space-4); }
.section-header h2 .highlight { color: var(--color-primary); }
.section-header p { font-size: var(--text-base); color: var(--color-text-secondary); line-height: 1.7; }

/* STATS */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-6); }
.stats-item { text-align: center; }
.stats-item .stats-number { font-size: var(--text-5xl); font-weight: 800; color: var(--color-primary); line-height: 1; margin-bottom: var(--space-2); }
.stats-item .stats-label { font-size: var(--text-sm); color: var(--color-text-secondary); font-weight: 500; }
@media (max-width: 767px) { .stats-grid { grid-template-columns: repeat(2, 1fr); } }

/* LOGO CLOUD */
.logo-cloud { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: var(--space-8); padding: var(--space-8) 0; }
.logo-cloud-item { width: 120px; height: 48px; background: var(--color-bg-muted); border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; font-size: var(--text-sm); font-weight: 600; color: var(--color-text-muted); transition: all var(--transition-fast); opacity: 0.5; }
.logo-cloud-item:hover { opacity: 0.8; }

/* CTA BANNER */
.cta-banner { background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark)); border-radius: var(--radius-2xl); padding: var(--space-16) var(--space-8); text-align: center; color: white; }
.cta-banner h2 { font-size: var(--text-4xl); font-weight: 800; color: white; margin-bottom: var(--space-4); }
.cta-banner p { font-size: var(--text-lg); opacity: 0.9; max-width: 600px; margin: 0 auto var(--space-8); line-height: 1.6; }
.cta-banner .btn { background: white; color: var(--color-primary-dark); border-color: white; }
.cta-banner .btn:hover { background: var(--color-primary-50); }
.cta-banner .btn--outline { background: transparent; color: white; border-color: rgba(255,255,255,0.5); }
.cta-banner .btn--outline:hover { background: rgba(255,255,255,0.1); border-color: white; }

/* FOOTER */
.site-footer { background: var(--color-bg-off); border-top: 1px solid var(--color-border); padding: var(--space-16) 0 var(--space-8); margin-top: var(--space-20); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: var(--space-10); }
.footer-brand .logo { font-size: var(--text-xl); display: inline-block; }
.footer-brand .footer-desc { font-size: var(--text-sm); color: var(--color-text-secondary); line-height: 1.7; margin-top: var(--space-4); max-width: 320px; }
.footer-col h4 { font-size: var(--text-sm); font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; color: var(--color-text); margin-bottom: var(--space-4); }
.footer-col ul li { margin-bottom: var(--space-2); }
.footer-col ul li a { font-size: var(--text-sm); color: var(--color-text-secondary); text-decoration: none; transition: color var(--transition-fast); }
.footer-col ul li a:hover { color: var(--color-primary); }
.footer-bottom { margin-top: var(--space-10); padding-top: var(--space-6); border-top: 1px solid var(--color-border); display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: var(--space-4); font-size: var(--text-sm); color: var(--color-text-muted); }
.footer-social { display: flex; gap: var(--space-3); }
.footer-social a { width: 36px; height: 36px; display: flex; align-items: center; justify-content: center; border-radius: var(--radius-md); color: var(--color-text-muted); transition: all var(--transition-fast); }
.footer-social a:hover { background: var(--color-bg-muted); color: var(--color-primary); }
@media (max-width: 1023px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 639px) { .footer-grid { grid-template-columns: 1fr; } .footer-bottom { flex-direction: column; text-align: center; } }

/* STYLE GUIDE DEMOS */
.color-swatch { display: flex; flex-direction: column; gap: var(--space-2); padding: var(--space-4); border-radius: var(--radius-lg); border: 1px solid var(--color-border); }
.color-swatch .swatch { width: 100%; height: 60px; border-radius: var(--radius-md); border: 1px solid var(--color-border-light); }
.color-swatch .swatch-label { font-size: var(--text-xs); color: var(--color-text-secondary); }
.color-swatch .swatch-label code { display: block; margin-top: 2px; font-size: 0.7rem; }
.type-scale { display: flex; flex-direction: column; gap: var(--space-4); }
.type-item { display: flex; align-items: baseline; gap: var(--space-4); }
.type-item .type-info { font-size: var(--text-xs); color: var(--color-text-muted); min-width: 120px; text-align: right; flex-shrink: 0; }

/* RESPONSIVE GLOBAL */
@media (max-width: 767px) {
  .hero--split .hero-actions { justify-content: center !important; }
}
@media (max-width: 639px) {
  html { font-size: 15px; }
  .container { padding: 0 var(--space-4); }
  .hero { padding: var(--space-12) 0 var(--space-10); }
  .hero h1 { font-size: var(--text-3xl); }
  .hero .hero-subtitle { font-size: var(--text-base); }
  .hero--split { padding: var(--space-8) 0; }
  .hero--split h1 { font-size: var(--text-3xl); }
  .hero--split .hero-subtitle { font-size: var(--text-base); }
  .section-header h2 { font-size: var(--text-3xl); }
  .cta-banner { padding: var(--space-10) var(--space-6); }
  .cta-banner h2 { font-size: var(--text-3xl); }
  .course-content h1 { font-size: var(--text-3xl); }
  .course-content h2 { font-size: var(--text-2xl); }
  .header-inner { padding: 0 var(--space-4); }
  .mobile-menu { padding: var(--space-4); }
}

/* ─── MODO CLARO: GLOW Y PARTICULAS DESACTIVADOS ─── */
[data-theme="light"] .glow {
  filter: none !important;
  animation: none !important;
}
[data-theme="light"] .glow::before,
[data-theme="light"] .glow::after,
[data-theme="light"] .glow .gp {
  animation: none !important;
  opacity: 0 !important;
}
@media (prefers-reduced-motion: reduce) {
  .glow--pulse { animation: none !important; }
  .glow--particles::before,
  .glow--particles::after,
  .glow--particles .gp { animation: none !important; opacity: 0 !important; }
}

/* PRINT */
/* MVP extras */
.cursos-filtros[data-ready="false"] { display: none; }
[data-ready="false"] { display: none; }
.form-input:disabled, .form-textarea:disabled, .form-select:disabled { opacity: 0.6; cursor: not-allowed; }

/* Badge course en dark mode: texto blanco */
[data-theme="dark"] .card--course .course-badge { background: var(--color-primary-800); color: #ffffff; }
[data-theme="light"] .card--course .course-badge { background: var(--color-primary-light); color: var(--color-primary-dark); }
@media (prefers-color-scheme: dark) {
  .card--course .course-badge { background: var(--color-primary-800); color: #ffffff; }
}

/* Hero home con imagenes de fondo */
.hero--home {
  position: relative;
  overflow: hidden;
}
.hero--home::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-image: url('../assets/img/fondo-home-claro.png');
}
[data-theme="dark"] .hero--home::before {
  background-image: url('../assets/img/fondo-home-oscuro.png');
}
[data-theme="light"] .hero--home::before {
  background-image: url('../assets/img/fondo-home-claro.png');
}
@media (prefers-color-scheme: dark) {
  .hero--home::before {
    background-image: url('../assets/img/fondo-home-oscuro.png');
  }
}
.hero--home::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    linear-gradient(to bottom, rgba(255,255,255,0.15) 0%, rgba(255,255,255,0.25) 60%, transparent 100%),
    linear-gradient(to top, var(--color-bg) 0%, transparent 25%);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
}
[data-theme="dark"] .hero--home::after {
  background:
    linear-gradient(to bottom, rgba(11,17,32,0.2) 0%, rgba(11,17,32,0.35) 60%, transparent 100%),
    linear-gradient(to top, #0b1120 0%, transparent 25%);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
}
[data-theme="light"] .hero--home::after {
  background:
    linear-gradient(to bottom, rgba(255,255,255,0.15) 0%, rgba(255,255,255,0.25) 60%, transparent 100%),
    linear-gradient(to top, var(--color-bg) 0%, transparent 25%);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
}
@media (prefers-color-scheme: dark) {
  .hero--home::after {
    background:
      linear-gradient(to bottom, rgba(11,17,32,0.2) 0%, rgba(11,17,32,0.35) 60%, transparent 100%),
      linear-gradient(to top, #0b1120 0%, transparent 25%);
    backdrop-filter: blur(3px);
    -webkit-backdrop-filter: blur(3px);
  }
}
.hero--home > .container {
  position: relative;
  z-index: 2;
}

/* Numeracion automatica de headings en contenido */
.course-content { counter-reset: sec-counter 0 sub-counter 0; }
.course-content h2 { counter-increment: sec-counter; counter-reset: sub-counter; }
.course-content h2::before { content: counter(sec-counter) ". "; }
.course-content h3 { counter-increment: sub-counter; }
.course-content h3::before { content: counter(sec-counter) "." counter(sub-counter) " "; }

/* Sin numeracion en hero title ni en el primer h2 cuando sigue al hero */
.course-content .hero-title-wrap h1::before,
.course-content .hero-title-wrap + .section-content h2::before { content: none; }
.course-content .hero-title-wrap { counter-reset: sec-counter; }

/* Headings en contenido de curso */
.course-content h1 {
  font-size: var(--text-5xl);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin: var(--space-10) 0 var(--space-6);
  padding-bottom: var(--space-4);
  border-bottom: 3px solid var(--color-primary);
  color: var(--color-text);
}
.course-content h2 {
  font-size: var(--text-3xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin: var(--space-8) 0 var(--space-4);
  padding-left: var(--space-4);
  border-left: 4px solid var(--color-primary);
  color: var(--color-text);
}
.course-content h3 {
  font-size: var(--text-xl);
  font-weight: 600;
  line-height: 1.3;
  margin: var(--space-6) 0 var(--space-3);
  color: var(--color-primary);
}
.course-content h4 {
  font-size: var(--text-base);
  font-weight: 600;
  line-height: 1.4;
  margin: var(--space-4) 0 var(--space-2);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
/* Seccion de bienvenida en contenido */
.course-content .bienvenida-wrap {
  background: var(--color-primary-50);
  border: 1px solid var(--color-primary-200);
  border-radius: var(--radius-2xl);
  padding: var(--space-8) var(--space-8);
  margin: var(--space-6) 0 var(--space-10);
  position: relative;
}
[data-theme="dark"] .course-content .bienvenida-wrap {
  background: var(--color-primary-100);
  border-color: var(--color-primary-700);
}
.course-content .bienvenida-wrap .bienvenida-icon {
  font-size: var(--text-4xl);
  margin-bottom: var(--space-3);
}
.course-content .bienvenida-wrap h2 {
  margin-top: 0;
  border-left: none;
  padding-left: 0;
  font-size: var(--text-2xl);
}
.course-content .bienvenida-wrap p {
  color: var(--color-text-secondary);
  font-size: var(--text-base);
  line-height: 1.7;
}
/* Formato inline personalizado */
.course-content .clr-secondary {
  color: var(--color-text-secondary);
  font-weight: 500;
}
.course-content .clr-primary {
  color: var(--color-primary);
  font-weight: 600;
}
.course-content .clr-glow {
  color: var(--color-primary);
  font-weight: 600;
  filter: drop-shadow(0 0 4px var(--color-primary));
}
[data-theme="light"] .course-content .clr-glow {
  filter: none;
}
.course-content .clr-highlight {
  background: var(--color-warning-light);
  color: var(--color-warning);
  padding: 0.1rem 0.4rem;
  border-radius: var(--radius-sm);
  font-weight: 500;
}
[data-theme="dark"] .course-content .clr-highlight {
  background: #422006;
}
/* Figuras de imagenes con indice en caption */
.course-content .course-figure {
  margin: var(--space-6) 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-bg);
}
.course-content .course-figure img {
  width: 100%;
  margin: 0;
  border-radius: 0;
  box-shadow: none;
  display: block;
}
.course-content .course-figure figcaption {
  padding: var(--space-3) var(--space-5);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  border-top: 1px solid var(--color-border-light);
  background: var(--color-bg-off);
}
.course-content .course-figure .fig-num {
  font-weight: 700;
  color: var(--color-primary);
  margin-right: var(--space-2);
}

/* Secciones del contenido */
.course-content .section-content {
  padding: var(--space-4) 0;
  scroll-margin-top: calc(var(--header-height) + var(--space-4));
}
.course-content h2 {
  scroll-margin-top: calc(var(--header-height) + var(--space-4));
}
.course-content .section-content + .section-content {
  border-top: 1px dashed var(--color-border);
  margin-top: var(--space-4);
}
/* Boton de navegacion entre secciones */
.course-content .section-nav {
  display: flex;
  justify-content: space-between;
  gap: var(--space-3);
  margin: var(--space-6) 0 var(--space-8);
  flex-wrap: wrap;
}
/* Titulo grande de bienvenida al inicio */
.course-content .hero-title-wrap {
  text-align: center;
  padding: var(--space-10) 0 var(--space-6);
  margin-bottom: var(--space-8);
}
.course-content .hero-title-wrap h1 {
  border-bottom: none;
  font-size: var(--text-5xl);
  margin: 0 0 var(--space-4);
}
/* Tablas en contenido de curso */
.course-content table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
  margin: var(--space-4) 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.course-content thead {
  background: var(--color-bg-off);
}
.course-content th {
  text-align: left;
  font-weight: 600;
  padding: 0.75rem 1.25rem;
  border-bottom: 2px solid var(--color-border);
  color: var(--color-text);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.course-content td {
  padding: 0.75rem 1.25rem;
  border-bottom: 1px solid var(--color-border-light);
  color: var(--color-text-secondary);
}
.course-content tbody tr:last-child td { border-bottom: none; }
.course-content tbody tr:hover { background: var(--color-bg-off); }
.course-content tbody tr:nth-child(even) { background: var(--color-bg-muted); }
.course-content tbody tr:nth-child(even):hover { background: var(--color-bg-off); }
.course-content blockquote {
  border-left: 3px solid var(--color-primary);
  padding: var(--space-3) var(--space-5);
  margin: var(--space-4) 0;
  background: var(--color-bg-off);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: var(--color-text-secondary);
  font-style: italic;
}
.course-content img {
  border-radius: var(--radius-lg);
  margin: var(--space-4) 0;
  box-shadow: var(--shadow-md);
}
.course-content ul, .course-content ol {
  padding-left: var(--space-6);
  margin: var(--space-3) 0;
}
.course-content li {
  margin-bottom: var(--space-2);
  color: var(--color-text-secondary);
}

@media print {
  .site-header, .menu-toggle, .mobile-menu, .theme-toggle, .btn, .modal-overlay { display: none !important; }
  .section-divider { margin: var(--space-8) 0; }
  .hero { padding: var(--space-8) 0; }
  .card { break-inside: avoid; page-break-inside: avoid; }
}