/* ============================================================
   FARO Connect · Pack NDA · Estilos compartidos
   Usado por modelos-faro/*.html
   ============================================================ */

:root {
  --faro-navy: #071A44; --faro-blue-deep: #102E7A; --faro-blue: #1F5BFF;
  --faro-ice: #F3F8FF; --faro-arena-50: #F7FAFF; --faro-white: #FFFFFF;
  --cyan: #22C8FF; --teal: #17B890; --amber: #F5A623; --coral: #FF4D5E;
  --gray-text: #4B587C; --gray-line: #DDE7F6;
  --teal-soft: #D5F2E9; --amber-soft: #FEEDD0; --coral-soft: #FFDEE2;
  --cyan-soft: #D9F3FF; --blue-soft: #E6EFFF;
  --font-display: 'Inter Tight', 'Inter', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Menlo, monospace;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-body); background: var(--faro-ice); color: var(--faro-navy); -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; text-rendering: optimizeLegibility; line-height: 1.6; font-size: 15px; }

/* NDA RIBBON */
.nda-ribbon { background: linear-gradient(90deg, #FF4D5E 0%, #C9304A 100%); color: #FFF; padding: 8px 24px; text-align: center; font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase; font-weight: 600; position: sticky; top: 0; z-index: 100; box-shadow: 0 2px 8px rgba(255,77,94,0.2); }
.nda-ribbon strong { font-weight: 700; }

/* HEADER */
.doc-header { background: var(--faro-navy); color: var(--faro-white); padding: 56px 64px; position: relative; overflow: hidden; }
.doc-header::before { content: ''; position: absolute; inset: 0; background: radial-gradient(circle at 85% 15%, rgba(34,200,255,0.15), transparent 50%), radial-gradient(circle at 10% 90%, rgba(31,91,255,0.12), transparent 50%); pointer-events: none; }
.doc-back { display: inline-block; margin-bottom: 14px; font-family: var(--font-mono); font-size: 11px; color: rgba(255,255,255,0.55); text-decoration: none; letter-spacing: 0.1em; text-transform: uppercase; position: relative; }
.doc-back:hover { color: var(--cyan); }
.doc-eyebrow { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--cyan); font-weight: 600; margin-bottom: 14px; position: relative; }
.doc-title { font-family: var(--font-display); font-size: 44px; font-weight: 600; letter-spacing: -0.025em; margin-bottom: 16px; line-height: 1.1; max-width: 920px; position: relative; }
.doc-title em { color: var(--cyan); font-style: normal; }
.doc-sub { font-family: var(--font-body); font-size: 17px; color: rgba(255,255,255,0.82); max-width: 800px; line-height: 1.55; position: relative; }
.doc-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 20px; margin-top: 32px; padding-top: 28px; border-top: 1px solid rgba(255,255,255,0.12); position: relative; }
.doc-stat { display: flex; flex-direction: column; gap: 4px; }
.doc-stat__num { font-family: var(--font-mono); font-size: 28px; color: var(--faro-white); font-weight: 600; letter-spacing: -0.02em; line-height: 1; }
.doc-stat__num em { color: var(--cyan); font-style: normal; }
.doc-stat__lab { font-family: var(--font-mono); font-size: 9px; color: rgba(255,255,255,0.6); text-transform: uppercase; letter-spacing: 0.12em; font-weight: 600; }

/* LAYOUT */
.layout { display: grid; grid-template-columns: 240px 1fr; max-width: 1500px; margin: 0 auto; }
.layout--full { display: block; max-width: 1500px; margin: 0 auto; padding: 48px 56px 96px; }
.toc { position: sticky; top: 36px; height: calc(100vh - 36px); overflow-y: auto; padding: 28px 18px; border-right: 1px solid var(--gray-line); background: var(--faro-white); }
.toc__head { font-family: var(--font-mono); font-size: 10px; color: var(--gray-text); letter-spacing: 0.15em; text-transform: uppercase; font-weight: 600; margin-bottom: 14px; padding: 0 8px; }
.toc__list { list-style: none; padding: 0; margin: 0; }
.toc__list li { margin: 0; }
.toc__list a { display: block; padding: 6px 12px; font-family: var(--font-body); font-size: 12px; color: var(--gray-text); text-decoration: none; border-radius: 4px; line-height: 1.4; border-left: 2px solid transparent; transition: all 120ms; }
.toc__list a:hover { background: var(--faro-ice); color: var(--faro-navy); }
.toc__num { font-family: var(--font-mono); font-size: 10px; color: var(--faro-blue); font-weight: 600; margin-right: 8px; }

.main { padding: 48px 56px 96px; min-width: 0; max-width: 1100px; }
.main--wide { max-width: 1300px; }
.section { margin-bottom: 72px; scroll-margin-top: 60px; }
.section__num { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--faro-blue); font-weight: 600; margin-bottom: 8px; }
.section__title { font-family: var(--font-display); font-size: 30px; font-weight: 600; color: var(--faro-navy); letter-spacing: -0.022em; line-height: 1.2; margin-bottom: 14px; }
.section__lead { font-family: var(--font-display); font-size: 17px; color: var(--gray-text); line-height: 1.5; margin-bottom: 28px; font-weight: 400; max-width: 800px; }
.section__body p { margin-bottom: 14px; font-size: 15px; line-height: 1.7; color: #1F2A44; }
.section__body p strong { color: var(--faro-navy); font-weight: 700; }
.section__body ul, .section__body ol { margin: 12px 0 18px 24px; }
.section__body ul li, .section__body ol li { margin-bottom: 6px; font-size: 15px; line-height: 1.65; }
.section__body h3 { font-family: var(--font-display); font-size: 18px; font-weight: 600; color: var(--faro-navy); margin: 28px 0 10px; }

/* TABLA GENÉRICA */
.tabla-base { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 13px; background: var(--faro-white); border-radius: 8px; overflow: hidden; box-shadow: 0 1px 3px rgba(15,27,34,0.04); }
.tabla-base th { background: var(--faro-navy); color: #FFF; padding: 12px 10px; text-align: left; font-family: var(--font-display); font-weight: 600; font-size: 12px; letter-spacing: -0.005em; }
.tabla-base td { padding: 10px; border-bottom: 1px solid var(--gray-line); vertical-align: top; line-height: 1.5; }
.tabla-base tr:last-child td { border-bottom: none; }
.tabla-base tr:hover td { background: var(--faro-arena-50); }
.tabla-base code { font-family: var(--font-mono); font-size: 11px; color: var(--faro-blue-deep); background: var(--blue-soft); padding: 1px 6px; border-radius: 3px; }

/* CODE BLOCK */
.code-block { background: #0E1B3A; color: #E6EFFF; border-radius: 10px; padding: 20px 24px; margin: 18px 0; font-family: var(--font-mono); font-size: 12.5px; line-height: 1.6; overflow-x: auto; }
.code-block__lab { font-family: var(--font-mono); font-size: 10px; color: #22C8FF; letter-spacing: 0.15em; text-transform: uppercase; margin-bottom: 12px; font-weight: 700; }
.code-block .kw { color: #22C8FF; }
.code-block .str { color: #17B890; }
.code-block .com { color: #7A8589; font-style: italic; }
.code-block pre { font-family: inherit; white-space: pre; margin: 0; }

/* CTA FINAL */
.cta-final { background: linear-gradient(135deg, var(--faro-navy) 0%, var(--faro-blue-deep) 100%); color: #FFF; border-radius: 16px; padding: 40px 48px; margin: 48px 0; text-align: center; position: relative; overflow: hidden; }
.cta-final::before { content: ''; position: absolute; inset: 0; background: radial-gradient(circle at 50% 0, rgba(34,200,255,0.15), transparent 60%); pointer-events: none; }
.cta-final__title { font-family: var(--font-display); font-size: 24px; font-weight: 700; margin-bottom: 10px; letter-spacing: -0.015em; position: relative; }
.cta-final__sub { font-size: 14px; color: rgba(255,255,255,0.8); margin-bottom: 22px; max-width: 660px; margin-left: auto; margin-right: auto; line-height: 1.55; position: relative; }
.cta-final__btn { display: inline-block; padding: 14px 28px; background: var(--cyan); color: var(--faro-navy); border-radius: 9999px; font-family: var(--font-display); font-weight: 700; text-decoration: none; font-size: 14px; transition: all 200ms; position: relative; }
.cta-final__btn:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(34,200,255,0.3); }

/* DESCARGAS */
.descargas { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px; margin: 24px 0; }
.descarga { display: block; background: var(--faro-white); border: 1px solid var(--gray-line); border-radius: 12px; padding: 22px 26px; text-decoration: none; transition: all 200ms; }
.descarga:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(15,27,34,0.08); border-color: var(--faro-blue); }
.descarga__icon { font-size: 24px; margin-bottom: 10px; }
.descarga__title { font-family: var(--font-display); font-size: 16px; font-weight: 700; color: var(--faro-navy); margin-bottom: 6px; letter-spacing: -0.01em; }
.descarga__sub { font-family: var(--font-body); font-size: 12.5px; color: var(--gray-text); line-height: 1.5; margin-bottom: 10px; }
.descarga__cta { font-family: var(--font-mono); font-size: 10px; color: var(--faro-blue); font-weight: 700; letter-spacing: 0.1em; }

/* FOOTER */
.doc-foot { background: var(--faro-navy); color: rgba(255,255,255,0.7); padding: 24px 64px; font-family: var(--font-mono); font-size: 10.5px; text-align: center; letter-spacing: 0.05em; border-top: 1px solid rgba(255,255,255,0.08); }
.doc-foot a { color: var(--cyan); text-decoration: none; }
.doc-foot strong { color: rgba(255,255,255,0.9); }

/* CHIPS */
.chip { display: inline-block; font-family: var(--font-mono); font-size: 10px; padding: 3px 9px; border-radius: 9999px; letter-spacing: 0.08em; text-transform: uppercase; font-weight: 700; }
.chip--blue { background: var(--blue-soft); color: var(--faro-blue); }
.chip--teal { background: var(--teal-soft); color: var(--teal); }
.chip--amber { background: var(--amber-soft); color: var(--amber); }
.chip--coral { background: var(--coral-soft); color: var(--coral); }
.chip--cyan { background: var(--cyan-soft); color: var(--faro-blue-deep); }
.chip--gray { background: var(--faro-arena-50); color: var(--gray-text); border: 1px solid var(--gray-line); }
.chip--solid-navy { background: var(--faro-navy); color: #FFF; }

/* RESPONSIVE BÁSICO */
@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
  .toc { position: static; height: auto; border-right: none; border-bottom: 1px solid var(--gray-line); }
  .doc-header { padding: 36px 24px; }
  .doc-title { font-size: 32px; }
  .main { padding: 32px 24px 80px; }
}

@media print {
  .nda-ribbon, .doc-back, .toc, .cta-final, .fcn-fab, .fcn-panel { display: none !important; }
}


/* ============================================================
   E2 · Mejoras mobile + a11y helpers (auditoría)
   ============================================================ */

/* Focus visible accesible */
*:focus-visible { outline: 2px solid var(--cyan); outline-offset: 2px; border-radius: 4px; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }

/* Visually-hidden for screen readers */
.sr-only { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

/* Tabla con scroll horizontal en mobile */
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 12px 0; border-radius: 8px; }
.table-scroll table { min-width: 720px; }

/* Modal a11y mínimos */
.modal[aria-hidden="true"] { display: none; }

/* Breakpoint 600px adicional al 900px existente */
@media (max-width: 600px) {
  .doc-header { padding: 28px 18px; }
  .doc-title { font-size: 26px; }
  .doc-sub { font-size: 14px; }
  .doc-stats { grid-template-columns: repeat(2, 1fr) !important; gap: 12px; }
  .doc-stat__num { font-size: 22px; }
  .main { padding: 20px 16px 64px; }
  .section__title { font-size: 22px; }
  .section__lead { font-size: 14px; }
  .layout--full { padding: 24px 16px 80px; }

  /* Bibliotecas: grids 440/420 → fluido */
  .act-grid, .tns-grid { grid-template-columns: 1fr !important; }
  .ind-grid { grid-template-columns: 1fr !important; }
  .modelos-grid { grid-template-columns: 1fr !important; }
  .dominio-grid { grid-template-columns: 1fr !important; }
  .capas-grid { grid-template-columns: 1fr !important; }

  /* Filtros sticky: ajustar top en mobile */
  .filtros { padding: 12px 14px; top: 32px !important; }
  .filtros__row { gap: 8px; }
  .filtros__search { min-width: 100%; flex: 1 1 100%; }
  .filtros__select { flex: 1 1 calc(50% - 4px); min-width: 0; font-size: 12px; padding: 8px 10px; }
  .filtros__counter { margin-left: 0; flex: 1 1 100%; text-align: center; }

  /* Modal */
  .modal { padding: 16px 8px; }
  .modal__panel { padding: 24px 18px; }
  .modal__title { font-size: 18px; }

  /* CTA final */
  .cta-final { padding: 26px 20px; }
  .cta-final__title { font-size: 18px; }
  .cta-final__btn { font-size: 13px; padding: 12px 22px; }

  /* Descargas */
  .descargas { grid-template-columns: 1fr; }

  /* Header NDA ribbon */
  .nda-ribbon { font-size: 9.5px; padding: 7px 14px; letter-spacing: 0.1em; }
}

/* Print: limpiar también helpers fab */
@media print {
  .filtros, .modal { display: none !important; }
}

/* ============================================================
   K · Botón Volver universal + ajustes mobile finales
   ============================================================ */

/* Botón flotante "Volver" — aparece arriba a la izquierda */
.faro-back-fab {
  position: fixed;
  top: 50px;
  left: 20px;
  z-index: 200;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  background: rgba(7, 26, 68, 0.92);
  color: #FFF;
  border: 1px solid rgba(34, 200, 255, 0.4);
  border-radius: 9999px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-decoration: none;
  cursor: pointer;
  box-shadow: 0 6px 20px rgba(3, 16, 46, 0.25);
  transition: all 200ms cubic-bezier(0.22, 1, 0.36, 1);
  backdrop-filter: blur(8px);
}
.faro-back-fab:hover {
  background: var(--faro-blue);
  transform: translateX(-2px);
  box-shadow: 0 8px 24px rgba(31, 91, 255, 0.35);
}
.faro-back-fab__arrow {
  font-family: var(--font-mono);
  font-size: 13px;
  opacity: 0.85;
}
.faro-back-fab[hidden] { display: none !important; }

@media (max-width: 600px) {
  .faro-back-fab {
    top: 44px;
    left: 12px;
    padding: 8px 14px;
    font-size: 10px;
  }
}

@media print {
  .faro-back-fab { display: none !important; }
}


/* N8 · Animación slide-in del botón Volver */
@keyframes faro-back-slidein {
  from { opacity: 0; transform: translateX(-12px); }
  to { opacity: 1; transform: translateX(0); }
}
.faro-back-fab {
  animation: faro-back-slidein 280ms cubic-bezier(0.22,1,0.36,1);
}