/*
  Hoja de estilos comun para manuales PANPHONE.

  Uso en nuevos manuales:
  <link rel="stylesheet" href="manuales-panphone.css">

  Personalizacion recomendada:
  - Cambiar textos, indices, tablas e imagenes desde el HTML.
  - Cambiar la imagen de portada definiendo --cover-image en el body.
  - Mantener estas clases para reutilizar portada, navegacion, tablas, capturas,
    avisos, formularios, indice y comportamiento responsive.
*/
:root {
      --ink: #152033;
      --muted: #5d6878;
      --line: #d8e0ea;
      --paper: #ffffff;
      --soft: #f3f6f9;
      --brand: #0b6f86;
      --brand-dark: #11384d;
      --accent: #d7602b;
      --ok: #16745f;
      --shadow: 0 18px 45px rgba(16, 32, 51, .12);
      --cover-image: url("assets/csip/csip-product.png");
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: Arial, Helvetica, sans-serif;
      font-size: 16px;
      line-height: 1.62;
      color: var(--ink);
      background: var(--soft);
    }

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

    a {
      color: var(--brand);
    }

    .breadcrumb {
      position: absolute;
      top: 18px;
      left: max(18px, calc((100vw - 1180px) / 2));
      z-index: 20;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 12px;
      color: #d8e9ef;
      font-size: 13px;
      font-weight: 700;
      background: rgba(13, 43, 61, .72);
      border: 1px solid rgba(255, 255, 255, .2);
      backdrop-filter: blur(10px);
    }

    .breadcrumb a {
      color: #fff;
      text-decoration: none;
    }

    .breadcrumb a:hover,
    .breadcrumb a:focus-visible {
      text-decoration: underline;
      text-underline-offset: 3px;
    }

    .cover {
      min-height: 88vh;
      display: grid;
      grid-template-columns: minmax(0, 1fr) minmax(300px, .72fr);
      align-items: center;
      gap: 56px;
      padding: 48px max(28px, calc((100vw - 1180px) / 2));
      color: #fff;
      background:
        linear-gradient(90deg, rgba(17, 56, 77, .97), rgba(17, 56, 77, .9) 46%, rgba(17, 56, 77, .58)),
        var(--cover-image) right center / min(52vw, 720px) auto no-repeat,
        #11384d;
    }

    .cover-kicker {
      margin: 0 0 18px;
      font-size: 13px;
      font-weight: 700;
      letter-spacing: .08em;
      text-transform: uppercase;
      color: #b9e8ec;
    }

    .cover h1 {
      margin: 0;
      max-width: 720px;
      font-size: clamp(42px, 7vw, 78px);
      line-height: 1;
      letter-spacing: 0;
    }

    .cover-subtitle {
      max-width: 610px;
      margin: 24px 0 0;
      font-size: clamp(18px, 2vw, 24px);
      color: #e5f0f5;
    }

    .cover-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 34px;
    }

    .cover-button {
      display: inline-flex;
      align-items: center;
      min-height: 42px;
      padding: 9px 15px;
      color: #fff;
      font-size: 14px;
      font-weight: 800;
      text-decoration: none;
      border: 1px solid rgba(255, 255, 255, .34);
      background: rgba(255, 255, 255, .12);
    }

    .cover-button.primary {
      color: var(--brand-dark);
      background: #b9e8ec;
      border-color: #b9e8ec;
    }

    .document-card {
      align-self: end;
      padding: 24px;
      color: #eaf5f7;
      border: 1px solid rgba(255, 255, 255, .25);
      background: rgba(13, 43, 61, .74);
      backdrop-filter: blur(14px);
    }

    .document-card h2 {
      margin: 0 0 16px;
      color: #fff;
      font-size: 20px;
    }

    .document-row {
      display: grid;
      grid-template-columns: 132px minmax(0, 1fr);
      gap: 18px;
      padding: 12px 0;
      border-top: 1px solid rgba(255, 255, 255, .16);
    }

    .document-row span {
      color: #b9e8ec;
      font-size: 12px;
      font-weight: 800;
      text-transform: uppercase;
    }

    .document-row strong,
    .document-row p {
      margin: 0;
      color: #fff;
      font-size: 15px;
    }

    .document-link-button {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 38px;
      margin-top: 10px;
      padding: 8px 12px;
      color: var(--brand-dark);
      font-size: 13px;
      font-weight: 800;
      text-decoration: none;
      background: #b9e8ec;
      border: 1px solid #b9e8ec;
    }

    .contact-card {
      align-self: end;
      padding: 24px;
      color: #eaf5f7;
      border: 1px solid rgba(255, 255, 255, .25);
      background: rgba(13, 43, 61, .74);
      backdrop-filter: blur(14px);
    }

    .contact-card h2 {
      margin: 0 0 8px;
      color: #fff;
      font-size: 20px;
    }

    .contact-card p {
      margin: 0 0 16px;
      color: #d8e9ef;
      font-size: 14px;
      line-height: 1.45;
    }

    .contact-form {
      display: grid;
      gap: 11px;
    }

    .contact-form label {
      display: grid;
      gap: 4px;
      color: #b9e8ec;
      font-size: 12px;
      font-weight: 800;
      text-transform: uppercase;
    }

    .contact-form input,
    .contact-form textarea {
      width: 100%;
      min-height: 38px;
      padding: 9px 10px;
      color: #fff;
      font: inherit;
      font-size: 14px;
      border: 1px solid rgba(255, 255, 255, .28);
      background: rgba(255, 255, 255, .1);
      outline: none;
    }

    .contact-form textarea {
      min-height: 92px;
      resize: vertical;
    }

    .contact-form input::placeholder,
    .contact-form textarea::placeholder {
      color: rgba(234, 245, 247, .62);
    }

    .contact-form input:focus,
    .contact-form textarea:focus {
      border-color: #b9e8ec;
      box-shadow: 0 0 0 3px rgba(185, 232, 236, .16);
    }

    .contact-form button {
      min-height: 42px;
      margin-top: 4px;
      color: var(--brand-dark);
      font: inherit;
      font-size: 14px;
      font-weight: 800;
      cursor: pointer;
      border: 1px solid #b9e8ec;
      background: #b9e8ec;
    }

    .form-status {
      min-height: 22px;
      margin: 4px 0 0;
      font-size: 14px;
      font-weight: 700;
      color: var(--muted);
    }

    .form-status.is-success {
      color: #0f766e;
    }

    .form-status.is-error {
      color: #b42318;
    }

    .contact-section {
      display: grid;
      grid-template-columns: minmax(0, .9fr) minmax(320px, 1.1fr);
      gap: 28px;
      align-items: start;
    }

    .contact-section .contact-card {
      align-self: start;
      color: var(--ink);
      border-color: var(--line);
      background: #f8fafc;
      backdrop-filter: none;
    }

    .contact-section .contact-card h3 {
      margin-top: 0;
    }

    .contact-section .contact-card p {
      color: var(--muted);
    }

    .contact-section .contact-form label {
      color: var(--brand-dark);
    }

    .contact-section .contact-form input,
    .contact-section .contact-form textarea {
      color: var(--ink);
      border-color: var(--line);
      background: #fff;
    }

    .contact-section .contact-form input::placeholder,
    .contact-section .contact-form textarea::placeholder {
      color: #8a95a3;
    }

    .contact-section .contact-form button {
      color: #fff;
      border-color: var(--brand-dark);
      background: var(--brand-dark);
    }


    .topnav {
      position: sticky;
      top: 0;
      z-index: 20;
      padding: 0 max(18px, calc((100vw - 1180px) / 2));
      background: rgba(255, 255, 255, .98);
      border-bottom: 1px solid var(--line);
      box-shadow: 0 8px 26px rgba(16, 32, 51, .07);
      backdrop-filter: blur(12px);
    }

    .topnav-inner {
      min-height: 64px;
      display: flex;
      gap: 18px;
      align-items: center;
      justify-content: space-between;
      max-width: 1180px;
      margin: 0 auto;
    }

    .topnav-brand {
      display: flex;
      min-width: 230px;
      flex-direction: column;
      gap: 1px;
      color: var(--brand-dark);
      text-decoration: none;
    }

    .topnav-brand strong {
      font-size: 14px;
      line-height: 1.2;
      letter-spacing: .04em;
      text-transform: uppercase;
    }

    .topnav-brand span {
      color: var(--muted);
      font-size: 12px;
      line-height: 1.2;
    }

    .topnav-links {
      display: flex;
      gap: 8px;
      align-items: center;
      justify-content: flex-end;
      overflow-x: auto;
    }

    .topnav a {
      flex: 0 0 auto;
      padding: 8px 12px;
      color: var(--brand-dark);
      font-size: 14px;
      font-weight: 700;
      text-decoration: none;
      border: 1px solid transparent;
      border-radius: 2px;
    }

    .topnav a:hover {
      border-color: var(--line);
      background: var(--soft);
    }

    .nav-menu {
      position: relative;
      flex: 0 0 auto;
    }

    .nav-menu summary {
      list-style: none;
      cursor: pointer;
      padding: 8px 13px;
      color: #fff;
      font-size: 14px;
      font-weight: 800;
      background: var(--brand-dark);
      border: 1px solid var(--brand-dark);
      border-radius: 2px;
    }

    .nav-menu summary::-webkit-details-marker {
      display: none;
    }

    .nav-menu summary::after {
      content: " v";
      font-size: 12px;
      color: #b9e8ec;
    }

    .menu-panel {
      position: fixed;
      left: max(18px, calc((100vw - 1180px) / 2));
      right: max(18px, calc((100vw - 1180px) / 2));
      top: 64px;
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 8px;
      max-height: min(68vh, 560px);
      padding: 16px;
      overflow: auto;
      background: #fff;
      border: 1px solid var(--line);
      box-shadow: var(--shadow);
    }

    .menu-panel a {
      padding: 9px 10px;
      color: var(--ink);
      border: 1px solid var(--line);
      background: #f8fafc;
    }

    .side-index {
      display: none;
      position: fixed;
      top: 96px;
      left: 22px;
      z-index: 12;
      width: 214px;
      max-height: calc(100vh - 96px);
      overflow: auto;
      padding: 16px 14px;
      background: rgba(255, 255, 255, .98);
      border: 1px solid var(--line);
      box-shadow: 0 18px 42px rgba(16, 32, 51, .1);
      backdrop-filter: blur(12px);
    }

    .side-index strong {
      display: block;
      margin-bottom: 2px;
      color: var(--brand-dark);
      font-size: 14px;
      line-height: 1.2;
    }

    .side-index small {
      display: block;
      margin-bottom: 12px;
      color: var(--muted);
      font-size: 11px;
      line-height: 1.3;
      text-transform: uppercase;
      letter-spacing: .04em;
    }

    .side-index nav {
      display: grid;
      gap: 2px;
    }

    .side-index a {
      display: flex;
      align-items: center;
      min-height: 30px;
      padding: 6px 8px 6px 10px;
      color: var(--ink);
      font-size: 12px;
      line-height: 1.25;
      text-decoration: none;
      border-left: 3px solid transparent;
      border-radius: 0 3px 3px 0;
    }

    .side-index a:hover,
    .side-index a:focus-visible,
    .side-index a.is-active {
      color: var(--brand-dark);
      border-left-color: var(--brand);
      background: #eef7fa;
      outline: none;
    }

    main {
      max-width: 1180px;
      margin: 0 auto;
      padding: 42px 24px 96px;
    }

    section {
      margin: 0 0 34px;
      padding: 34px;
      background: var(--paper);
      border: 1px solid var(--line);
      box-shadow: var(--shadow);
      scroll-margin-top: 86px;
    }

    .section-label {
      margin: 0 0 8px;
      color: var(--brand);
      font-size: 13px;
      font-weight: 700;
      letter-spacing: .06em;
      text-transform: uppercase;
    }

    h2 {
      margin: 0 0 18px;
      color: var(--brand-dark);
      font-size: clamp(28px, 4vw, 42px);
      line-height: 1.14;
      letter-spacing: 0;
    }

    h3 {
      margin: 30px 0 10px;
      color: var(--brand-dark);
      font-size: 22px;
      line-height: 1.25;
      letter-spacing: 0;
    }

    p {
      margin: 0 0 14px;
    }

    .notice {
      padding: 20px 22px;
      margin: 22px 0;
      border-left: 5px solid var(--accent);
      background: #fff4ec;
    }

    .notice strong,
    .legal strong {
      color: var(--brand-dark);
    }

    .legal-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 18px;
    }

    .legal {
      padding: 18px;
      border: 1px solid var(--line);
      background: #f8fafc;
    }

    .chapter-lead {
      max-width: 860px;
      color: var(--muted);
      font-size: 18px;
    }

    .feature-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 16px;
      margin-top: 22px;
    }

    .feature {
      padding: 18px;
      border: 1px solid var(--line);
      background: #f8fafc;
    }

    .feature h4 {
      margin: 0 0 8px;
      color: var(--brand-dark);
      font-size: 17px;
    }

    .feature p {
      margin: 0;
      color: var(--muted);
    }

    .clean-list {
      margin: 14px 0 0;
      padding-left: 20px;
    }

    .clean-list li {
      margin: 7px 0;
    }

    .manual-figure {
      margin: 24px 0;
      padding: 20px;
      border: 1px solid var(--line);
      background: #fff;
    }

    .manual-figure img {
      width: 100%;
      height: auto;
      max-height: 620px;
      object-fit: contain;
      background: #fff;
    }

    .manual-figure figcaption {
      margin-top: 10px;
      color: var(--muted);
      font-size: 14px;
    }

    .figure-compact img {
      max-width: 760px;
      margin: 0 auto;
    }

    .figure-narrow img {
      max-width: 420px;
      margin: 0 auto;
    }

    .technical-layout {
      display: grid;
      grid-template-columns: minmax(260px, .9fr) minmax(0, 1.1fr);
      gap: 22px;
      align-items: start;
      margin: 24px 0;
    }

    .connector-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 10px;
    }

    .connector-card {
      min-height: 72px;
      padding: 12px 14px;
      border: 1px solid var(--line);
      background: #f8fafc;
    }

    .connector-card strong {
      display: block;
      margin-bottom: 4px;
      color: var(--brand-dark);
    }

    .connector-card span {
      color: var(--muted);
      font-size: 14px;
    }

    .inline-reference {
      margin: 0;
      padding: 12px;
      border: 1px solid var(--line);
      background: #fff;
    }

    .inline-reference img {
      width: 100%;
      max-height: 260px;
      object-fit: contain;
    }

    .inline-reference figcaption {
      margin-top: 8px;
      color: var(--muted);
      font-size: 13px;
    }

    .menu-icon {
      width: 44px;
      height: 44px;
      object-fit: contain;
      display: block;
      margin: 0;
      padding: 3px;
      background: #fff;
      border: 1px solid var(--line);
    }

    .parallel-block {
      display: grid;
      grid-template-columns: minmax(0, 1fr) minmax(280px, 360px);
      gap: 24px;
      align-items: start;
      margin: 18px 0 24px;
    }

    .menu-table td:first-child,
    .menu-table th:first-child {
      width: 74px;
      text-align: center;
    }

    .data-table {
      width: 100%;
      margin: 18px 0 0;
      border-collapse: collapse;
      background: #fff;
    }

    .data-table th,
    .data-table td {
      padding: 11px 12px;
      text-align: left;
      vertical-align: top;
      border: 1px solid var(--line);
    }

    .data-table th {
      color: var(--brand-dark);
      background: #eef4f8;
    }

    .screen-card {
      display: grid;
      grid-template-columns: minmax(0, 1fr) minmax(180px, 255px);
      gap: 20px;
      align-items: center;
      margin: 18px 0;
      padding: 16px 18px;
      border: 1px solid var(--line);
      border-left: 4px solid var(--brand);
      background: linear-gradient(90deg, #f8fbfd 0%, #fff 100%);
    }

    .screen-card h4 {
      margin: 0 0 8px;
      color: var(--brand-dark);
      font-size: 18px;
    }

    .screen-card p {
      margin: 0;
      color: var(--muted);
    }

    .screen-card img {
      width: 100%;
      max-height: 150px;
      object-fit: contain;
      background: #fff;
      border: 1px solid var(--line);
      padding: 8px;
    }

    .screen-shot {
      justify-self: end;
      width: min(255px, 100%);
    }

    .screen-zoom {
      display: block;
      width: 100%;
      padding: 0;
      color: var(--brand-dark);
      font: inherit;
      text-align: left;
      border: 0;
      background: transparent;
      cursor: pointer;
    }

    .screen-zoom img {
      transition: transform .16s ease, box-shadow .16s ease, border-color .16s ease;
    }

    .screen-zoom:hover img,
    .screen-zoom:focus-visible img {
      border-color: var(--brand);
      box-shadow: 0 10px 24px rgba(16, 32, 51, .14);
      transform: translateY(-1px);
    }

    .screen-zoom span {
      display: flex;
      align-items: center;
      justify-content: center;
      min-height: 34px;
      margin-top: 8px;
      color: var(--brand-dark);
      font-size: 13px;
      font-weight: 800;
      border: 1px solid var(--line);
      background: #fff;
    }

    .screen-zoom:hover span,
    .screen-zoom:focus-visible span {
      color: #fff;
      border-color: var(--brand);
      background: var(--brand);
    }

    .image-lightbox {
      position: fixed;
      inset: 0;
      width: min(1180px, calc(100vw - 48px));
      max-width: calc(100vw - 48px);
      max-height: calc(100vh - 48px);
      margin: auto;
      padding: 0;
      overflow: hidden;
      border: 0;
      background: #fff;
      box-shadow: 0 28px 80px rgba(10, 24, 38, .35);
    }

    .image-lightbox[open] {
      display: flex;
      flex-direction: column;
    }

    .image-lightbox::backdrop {
      background: rgba(10, 24, 38, .72);
    }

    .lightbox-header {
      position: absolute;
      top: 12px;
      right: 12px;
      z-index: 2;
    }

    .lightbox-header strong {
      position: absolute;
      width: 1px;
      height: 1px;
      overflow: hidden;
      clip: rect(0 0 0 0);
      white-space: nowrap;
    }

    .lightbox-close {
      min-width: 38px;
      min-height: 34px;
      color: #fff;
      font-size: 20px;
      line-height: 1;
      border: 0;
      background: var(--brand-dark);
      box-shadow: 0 8px 22px rgba(10, 24, 38, .28);
      cursor: pointer;
    }

    .image-lightbox img {
      width: 100%;
      max-width: 100%;
      max-height: calc(100vh - 48px);
      object-fit: contain;
      display: block;
      flex: 1 1 auto;
      min-height: 0;
      border: 0;
      background: #fff;
    }

    .image-lightbox p {
      display: none;
    }

    .screen-card .screen-kicker {
      display: inline-block;
      margin-bottom: 7px;
      color: var(--brand);
      font-size: 11px;
      font-weight: 800;
      letter-spacing: .08em;
      text-transform: uppercase;
    }

    .setup-summary {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 12px;
      margin: 18px 0 6px;
    }

    .setup-summary div {
      padding: 14px;
      border: 1px solid var(--line);
      background: #fff;
    }

    .setup-summary strong {
      display: block;
      margin-bottom: 5px;
      color: var(--brand-dark);
    }

    .setup-summary span {
      display: block;
      color: var(--muted);
      font-size: 14px;
    }

    .field-guide th:first-child {
      width: 178px;
    }

    .field-guide th:nth-child(2) {
      width: 34%;
    }

    .option-list {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
      margin-top: 3px;
    }

    .option-chip {
      display: inline-flex;
      align-items: center;
      min-height: 28px;
      padding: 4px 9px;
      color: var(--brand-dark);
      font-size: 13px;
      font-weight: 800;
      line-height: 1.2;
      border: 1px solid #b8c7d6;
      background: #fff;
    }

    .option-chip::before {
      content: "";
      width: 7px;
      height: 7px;
      margin-right: 7px;
      border: 1px solid var(--brand);
      background: #fff;
    }

    .option-chip.selected {
      border-color: var(--brand);
      background: #eaf7fa;
    }

    .option-chip.selected::before {
      background: var(--brand);
    }

    .selection-detail td {
      background: #f8fcff;
    }

    .selection-detail td:first-child {
      position: relative;
      padding-left: 16px;
      color: var(--brand-dark);
      font-weight: 800;
      box-shadow: inset 4px 0 0 #b9e8ec;
    }

    .selection-detail td:nth-child(2) {
      border-left: 1px solid #cfeef1;
    }

    .toc {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 18px;
      margin-top: 24px;
      counter-reset: chapter;
    }

    .toc-card {
      position: relative;
      display: block;
      min-height: 100%;
      padding: 22px 22px 20px 72px;
      color: inherit;
      text-decoration: none;
      border: 1px solid var(--line);
      background: #fbfcfe;
      counter-increment: chapter;
      cursor: pointer;
      transition: border-color .16s ease, box-shadow .16s ease, transform .16s ease;
    }

    .toc-card:hover,
    .toc-card:focus-within,
    .toc-card:focus-visible {
      border-color: var(--brand);
      box-shadow: 0 12px 28px rgba(16, 32, 51, .12);
      transform: translateY(-1px);
      outline: none;
    }

    .toc-card::after {
      content: "Abrir apartado";
      display: inline-flex;
      margin-top: 12px;
      padding: 5px 8px;
      color: var(--brand-dark);
      font-size: 12px;
      font-weight: 800;
      border: 1px solid var(--line);
      background: #fff;
    }

    .toc-card::before {
      content: counter(chapter, decimal-leading-zero);
      position: absolute;
      top: 22px;
      left: 20px;
      color: var(--brand);
      font-size: 20px;
      font-weight: 800;
    }

    .toc-card h3 {
      margin: 0 0 8px;
      font-size: 18px;
    }

    .toc-card ul {
      margin: 0;
      padding-left: 18px;
      color: var(--muted);
      font-size: 14px;
    }

    .toc-card li {
      margin: 3px 0;
    }

    .status {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-top: 12px;
      padding: 6px 10px;
      color: var(--ok);
      font-size: 13px;
      font-weight: 700;
      background: #edf8f4;
      border: 1px solid #cdeae1;
    }

    .next-step {
      color: var(--muted);
      font-size: 15px;
    }

    @media (max-width: 900px) {
      .cover {
        grid-template-columns: 1fr;
        min-height: auto;
        padding-top: 54px;
        background:
          linear-gradient(180deg, rgba(17, 56, 77, .98), rgba(17, 56, 77, .9)),
          var(--cover-image) center bottom / 420px auto no-repeat,
          #11384d;
      }

      .document-card,
      .contact-card {
        max-width: 520px;
      }

      .legal-grid,
      .feature-grid,
      .technical-layout,
      .contact-section,
      .toc {
        grid-template-columns: 1fr;
      }

      .connector-grid {
        grid-template-columns: 1fr;
      }

      .menu-panel {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .topnav-inner {
        align-items: flex-start;
        flex-direction: column;
        gap: 10px;
        padding: 10px 0;
      }

      .topnav-brand {
        min-width: 0;
      }

      .topnav-links {
        width: 100%;
        justify-content: flex-start;
      }
    }

    @media (min-width: 1280px) {
      main {
        max-width: calc(100vw - 288px);
        margin-left: 238px;
        margin-right: 32px;
      }

      .side-index {
        display: block;
      }
    }

    @media (max-width: 620px) {
      .cover,
      main {
        padding-left: 18px;
        padding-right: 18px;
      }

      section {
        padding: 24px 18px;
      }

      .document-row {
        grid-template-columns: 1fr;
        gap: 4px;
      }

      .menu-panel {
        grid-template-columns: 1fr;
      }

      .topnav-links {
        display: grid;
        grid-template-columns: 1fr 1fr;
        width: 100%;
        overflow: visible;
      }

      .topnav a,
      .nav-menu summary {
        width: 100%;
        text-align: center;
      }

      .nav-menu {
        grid-column: 1 / -1;
        width: 100%;
      }

      .nav-menu .menu-panel {
        position: static;
        width: 100%;
        max-height: 62vh;
        margin-top: 8px;
      }

      .inline-reference {
        width: 100%;
        margin: 16px 0;
      }

      .parallel-block,
      .parallel-block.wide-medía,
      .screen-card,
      .setup-summary {
        grid-template-columns: 1fr;
      }

      .toc-card {
        padding-left: 58px;
      }

      .screen-shot {
        justify-self: stretch;
        width: 100%;
      }

      .screen-card img {
        max-height: none;
        padding: 6px;
      }

      .screen-zoom span {
        min-height: 42px;
        font-size: 14px;
      }

      .image-lightbox {
        width: 100vw;
        max-width: 100vw;
        max-height: 100vh;
      }
    }

    /* Ajustes de composición para el manual analógico. */
    .manual-analogico .toc-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 16px;
      margin-top: 22px;
    }

    .manual-analogico .feature-card {
      min-height: 150px;
      padding: 20px;
      border: 1px solid var(--line);
      background: #f8fafc;
    }

    .manual-analogico .feature-card h3 {
      margin: 0 0 10px;
      font-size: 18px;
    }

    .manual-analogico .feature-card p {
      margin: 0;
      color: var(--muted);
    }

    .manual-analogico .screen-card {
      display: block;
      margin: 24px 0;
      padding: 18px;
      border-left-width: 4px;
    }

    .manual-analogico .screen-shot {
      width: min(100%, 720px);
      margin: 0 auto;
    }

    .manual-analogico .screen-card img {
      max-height: 520px;
      padding: 8px;
    }

    .manual-analogico .screen-shot figcaption {
      margin-top: 10px;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.45;
    }

    .manual-analogico .table-wrap {
      margin: 20px 0 26px;
      overflow-x: auto;
      border: 1px solid var(--line);
      background: #fff;
    }

    .manual-analogico table {
      width: 100%;
      min-width: 620px;
      border-collapse: collapse;
    }

    .manual-analogico th,
    .manual-analogico td {
      padding: 12px 14px;
      text-align: left;
      vertical-align: top;
      border: 1px solid var(--line);
    }

    .manual-analogico th {
      color: var(--brand-dark);
      background: #eef4f8;
      font-weight: 800;
    }

    .manual-analogico .faq-list {
      display: grid;
      gap: 10px;
      margin-top: 20px;
    }

    .manual-analogico .faq-list details {
      border: 1px solid var(--line);
      background: #f8fafc;
    }

    .manual-analogico .faq-list summary {
      padding: 16px 18px;
      color: var(--brand-dark);
      font-weight: 800;
      cursor: pointer;
    }

    .manual-analogico .faq-list details p {
      margin: 0;
      padding: 0 18px 18px;
      color: var(--muted);
    }

    @media (max-width: 900px) {
      .manual-analogico .toc-grid {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 620px) {
      .manual-analogico .screen-card {
        margin: 18px 0;
        padding: 12px;
      }

      .manual-analogico .screen-card img {
        max-height: none;
      }

      .manual-analogico .feature-card {
        min-height: 0;
      }
    }

    .manual-analogico #contacto {
      display: grid;
      grid-template-columns: minmax(0, .9fr) minmax(320px, 1.1fr);
      gap: 28px;
      align-items: start;
    }

    .manual-analogico #contacto > .section-label,
    .manual-analogico #contacto > h2 {
      grid-column: 1 / -1;
    }

    .manual-analogico #contacto > p:not(.section-label) {
      grid-column: 1;
      max-width: 430px;
      color: var(--muted);
      font-size: 18px;
      line-height: 1.55;
    }

    .manual-analogico #contacto > p:not(.section-label)::after {
      content: "No incluya contraseñas, claves privadas ni datos sensibles en la consulta.";
      display: block;
      margin-top: 24px;
      padding: 18px 20px;
      color: var(--ink);
      font-size: 15px;
      line-height: 1.5;
      border-left: 5px solid var(--accent);
      background: #fff4ec;
    }

    .manual-analogico #contacto > .contact-form {
      grid-column: 2;
      padding: 24px;
      border: 1px solid var(--line);
      background: #f8fafc;
    }

    .manual-analogico #contacto > .contact-form::before {
      content: "";
      display: none;
    }

    .manual-analogico #contacto > .contact-form::after {
      content: "";
      display: none;
    }

    .manual-analogico #contacto > .contact-form h3 {
      margin: 0 0 8px;
      color: var(--brand-dark);
      font-size: 24px;
      line-height: 1.25;
    }

    .manual-analogico #contacto > .contact-form p:not(.form-status) {
      margin: 0 0 18px;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.45;
    }

    .manual-analogico #contacto > .contact-form label {
      color: var(--brand-dark);
    }

    .manual-analogico #contacto > .contact-form input,
    .manual-analogico #contacto > .contact-form textarea {
      color: var(--ink);
      border-color: var(--line);
      background: #fff;
    }

    .manual-analogico #contacto > .contact-form input::placeholder,
    .manual-analogico #contacto > .contact-form textarea::placeholder {
      color: #8a95a3;
    }

    .manual-analogico #contacto > .contact-form button {
      color: #fff;
      border-color: var(--brand-dark);
      background: var(--brand-dark);
    }

    .manual-analogico #introduccion > .section-label,
    .manual-analogico #caracteristicas > .section-label,
    .manual-analogico #instalacion > .section-label,
    .manual-analogico #programacion > .section-label,
    .manual-analogico #funcionamiento > .section-label,
    .manual-analogico #tonos > .section-label,
    .manual-analogico #parametros > .section-label,
    .manual-analogico #digitos > .section-label,
    .manual-analogico #hoja-valores > .section-label,
    .manual-analogico #senales > .section-label,
    .manual-analogico #tecnicos > .section-label,
    .manual-analogico #accesorios > .section-label,
    .manual-analogico #preguntas > .section-label {
      display: none;
    }

    @media (max-width: 900px) {
      .manual-analogico #contacto {
        grid-template-columns: 1fr;
      }

      .manual-analogico #contacto > .section-label,
      .manual-analogico #contacto > h2,
      .manual-analogico #contacto > p:not(.section-label),
      .manual-analogico #contacto > .contact-form {
        grid-column: 1;
      }

      .manual-analogico #contacto > p:not(.section-label) {
        max-width: none;
      }
    }

/* ==========================================================================
   TOC Accordion / Sliding Drawer for Chapter Subpoints
   ========================================================================== */
.toc-card {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  cursor: pointer;
}

.toc-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
  width: 100%;
}

.toc-card h3 {
  margin: 0;
  font-size: 17px;
  line-height: 1.35;
  flex: 1;
}

.toc-card h3 a {
  color: inherit;
  text-decoration: none;
  display: inline-block;
  transition: color 0.15s ease;
}

.toc-card h3 a:hover {
  color: var(--brand);
}

.toc-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 8px;
  font-size: 11px;
  font-weight: 700;
  color: var(--brand-dark);
  background: #eef7fa;
  border: 1px solid rgba(22, 94, 122, 0.18);
  border-radius: 12px;
  white-space: nowrap;
  user-select: none;
  transition: all 0.25s ease;
}

.toc-card:hover .toc-badge,
.toc-card.is-open .toc-badge {
  background: var(--brand);
  color: #ffffff;
  border-color: var(--brand);
}

.toc-badge .arrow {
  display: inline-block;
  font-size: 9px;
  transition: transform 0.25s ease;
}

.toc-card:hover .toc-badge .arrow,
.toc-card.is-open .toc-badge .arrow {
  transform: rotate(180deg);
}

.toc-desc {
  margin: 6px 0 0;
  font-size: 13.5px;
  color: var(--muted);
  line-height: 1.4;
}

/* Sliding drawer with CSS Grid */
.toc-slider {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.3s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.25s ease, margin-top 0.25s ease;
  opacity: 0;
  margin-top: 0;
}

.toc-slider-inner {
  overflow: hidden;
}

.toc-card:hover .toc-slider,
.toc-card:focus-within .toc-slider,
.toc-card.is-open .toc-slider {
  grid-template-rows: 1fr;
  opacity: 1;
  margin-top: 10px;
}

.toc-slider ul {
  margin: 0;
  padding: 10px 0 4px 18px !important;
  border-top: 1px dashed var(--line);
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.5;
}

.toc-slider li {
  margin: 4px 0;
}

.toc-slider a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px dotted var(--brand);
  transition: color 0.15s ease, border-bottom 0.15s ease;
}

.toc-slider a:hover {
  color: var(--brand);
  border-bottom: 1px solid var(--brand);
}


/* ==========================================================================
   SLIDING ACCORDIONS: SIDEBAR & MAIN INDEX
   ========================================================================== */

/* 1. SIDEBAR INDEX SLIDING SUBPOINTS */
.side-nav-item {
  position: relative;
  display: flex;
  flex-direction: column;
}

.side-nav-link {
  display: flex !important;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.side-nav-arrow {
  font-size: 8px;
  color: var(--muted);
  transition: transform 0.2s ease, color 0.2s ease;
  margin-left: auto;
  padding-left: 6px;
}

.side-nav-sub-wrapper {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.25s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.2s ease;
  opacity: 0;
  margin: 0;
  padding: 0;
}

.side-nav-sub-inner {
  overflow: hidden;
  padding-left: 10px;
  border-left: 2px solid var(--brand);
  margin: 2px 0 4px 6px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.side-nav-item:hover .side-nav-sub-wrapper,
.side-nav-item:focus-within .side-nav-sub-wrapper,
.side-nav-item.is-open .side-nav-sub-wrapper {
  grid-template-rows: 1fr;
  opacity: 1;
}

.side-nav-item:hover .side-nav-arrow,
.side-nav-item.is-open .side-nav-arrow {
  transform: rotate(180deg);
  color: var(--brand-dark);
}

.side-nav-sub-inner a {
  min-height: 24px !important;
  font-size: 11px !important;
  padding: 3px 6px !important;
  color: var(--muted) !important;
  background: transparent !important;
  border: none !important;
  border-radius: 4px;
  white-space: normal !important;
  line-height: 1.25;
  transition: all 0.15s ease;
}

.side-nav-sub-inner a:hover {
  color: var(--brand-dark) !important;
  background: #eef7fa !important;
  padding-left: 8px !important;
}

/* 2. MAIN TOC CARDS SLIDING DRAWER */
.toc-card {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  cursor: pointer;
  background: #fbfcfe;
  border: 1px solid var(--line);
  padding: 20px 20px 18px 68px;
  transition: border-color .16s ease, box-shadow .16s ease, transform .16s ease;
}

.toc-card:hover,
.toc-card:focus-within,
.toc-card.is-open {
  border-color: var(--brand);
  box-shadow: 0 10px 24px rgba(16, 32, 51, .1);
  transform: translateY(-1px);
}

.toc-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
  width: 100%;
}

.toc-card h3 {
  margin: 0;
  font-size: 17px;
  line-height: 1.35;
  flex: 1;
}

.toc-card h3 a {
  color: inherit;
  text-decoration: none;
  display: inline-block;
  transition: color 0.15s ease;
}

.toc-card h3 a:hover {
  color: var(--brand);
}

.toc-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  font-size: 11px;
  font-weight: 700;
  color: var(--brand-dark);
  background: #eef7fa;
  border: 1px solid rgba(22, 94, 122, 0.18);
  border-radius: 12px;
  white-space: nowrap;
  user-select: none;
  transition: all 0.25s ease;
}

.toc-card:hover .toc-badge,
.toc-card.is-open .toc-badge {
  background: var(--brand);
  color: #ffffff;
  border-color: var(--brand);
}

.toc-badge .arrow {
  display: inline-block;
  font-size: 9px;
  transition: transform 0.25s ease;
}

.toc-card:hover .toc-badge .arrow,
.toc-card.is-open .toc-badge .arrow {
  transform: rotate(180deg);
}

.toc-desc {
  margin: 6px 0 0;
  font-size: 13.5px;
  color: var(--muted);
  line-height: 1.4;
}

.toc-slider {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.3s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.25s ease, margin-top 0.25s ease;
  opacity: 0;
  margin-top: 0;
}

.toc-slider-inner {
  overflow: hidden;
}

.toc-card:hover .toc-slider,
.toc-card:focus-within .toc-slider,
.toc-card.is-open .toc-slider {
  grid-template-rows: 1fr;
  opacity: 1;
  margin-top: 10px;
}

.toc-slider ul {
  margin: 0;
  padding: 10px 0 4px 18px !important;
  border-top: 1px dashed var(--line);
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

.toc-slider li {
  margin: 4px 0;
}

.toc-slider a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px dotted var(--brand);
  transition: color 0.15s ease, border-bottom 0.15s ease;
}

.toc-slider a:hover {
  color: var(--brand);
  border-bottom: 1px solid var(--brand);
}