:root {
      --yellow: #ffd40f;
      --logo-accent: #ffd40f;
      --logo-text: #000000;
      --ink: #000000;
      --paper: #ffffff;
      --muted: rgba(0, 0, 0, 0.64);
      --rule: rgba(0, 0, 0, 0.18);
      --divider: rgba(0, 0, 0, 0.32);
      --nav-underline: rgba(0, 0, 0, 0.24);
      --ease-out: cubic-bezier(0.23, 1, 0.32, 1);
      --font-sans: "Archivo", "Helvetica Neue", Arial, sans-serif;
      --font-mono: "IBM Plex Mono", "Courier New", monospace;
      --shell: min(1320px, calc(100% - clamp(32px, 6vw, 80px)));
      --grid-gap: clamp(12px, 1.6vw, 24px);
      --space-xs: 8px;
      --space-sm: 12px;
      --space-md: 16px;
      --space-lg: 24px;
      --space-xl: 32px;
      --space-2xl: 48px;
      --space-3xl: 64px;
      --space-4xl: 96px;
      --text-display: clamp(2.8rem, 4.6vw, 4rem);
      --text-display-sm: clamp(2.05rem, 8.6vw, 2.85rem);
      --text-h2: clamp(2rem, 3.6vw, 3.2rem);
      --text-h3: clamp(1.2rem, 2vw, 1.6rem);
      --text-meta: 10px;
      --tracking-display: -0.045em;
      --tracking-label: 0.1em;
      --hero-top: clamp(44px, 5.4vw, 76px);
      --hero-bottom: clamp(52px, 6vw, 88px);
      --section-block: clamp(64px, 7.2vw, 104px);
      color-scheme: light;
    }

    :root[data-theme="dark"] {
      --logo-text: #f2f2ee;
      --ink: #f2f2ee;
      --paper: #0e0e0e;
      --muted: rgba(255, 255, 255, 0.66);
      --rule: rgba(255, 255, 255, 0.22);
      --divider: rgba(255, 255, 255, 0.32);
      --nav-underline: rgba(255, 255, 255, 0.28);
      color-scheme: dark;
    }

    *, *::before, *::after { box-sizing: border-box; }
    [hidden] { display: none !important; }

    html { scroll-behavior: smooth; scroll-padding-top: 96px; }

    body {
      margin: 0;
      background: var(--paper);
      color: var(--ink);
      font-family: var(--font-sans);
      font-size: 17px;
      line-height: 1.55;
      -webkit-font-smoothing: antialiased;
      text-rendering: optimizeLegibility;
    }

    body.menu-open { overflow: hidden; }
    ::selection { background: var(--yellow); color: #000; }
    a { color: inherit; }
    h1, h2, h3, h4, p, figure, dl, dd, ul, ol { margin: 0; }
    ol, ul { padding: 0; list-style: none; }

    :focus-visible {
      outline: 2px solid var(--ink);
      outline-offset: 3px;
      box-shadow: 0 0 0 6px var(--yellow);
    }

    .skip-link {
      position: fixed;
      top: -100px;
      left: 16px;
      z-index: 300;
      display: inline-flex;
      align-items: center;
      min-height: 44px;
      padding: 0 16px;
      background: var(--yellow);
      color: #000;
      border: 1px solid #000;
      font: 600 13px/1 var(--font-sans);
      text-decoration: none;
    }

    .skip-link:focus-visible { top: 12px; box-shadow: none; }

    /* ---------- Retícula ---------- */

    .sheet {
      width: var(--shell);
      margin-inline: auto;
      display: grid;
      grid-template-columns: 64px repeat(12, minmax(0, 1fr));
      column-gap: clamp(12px, 1.6vw, 24px);
    }

    .rail {
      grid-column: 1;
      align-self: start;
      display: flex;
      flex-direction: column;
      gap: 7px;
      padding-top: 2px;
      color: var(--muted);
      font: 500 10px/1.35 var(--font-mono);
      letter-spacing: 0.11em;
      text-transform: uppercase;
      position: sticky;
      top: 96px;
    }

    .rail-num { font-size: 12px; color: var(--ink); letter-spacing: 0.04em; }
    .rail-word { max-width: 11ch; overflow-wrap: normal; }

    /* ---------- Cabecera global ---------- */

    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: var(--paper);
      border-bottom: 1px solid var(--ink);
    }

    .header-shell {
      width: var(--shell);
      margin-inline: auto;
      min-height: 72px;
      display: flex;
      align-items: center;
      gap: clamp(14px, 2.2vw, 30px);
    }

    .brand-group {
      display: flex;
      align-items: center;
      gap: 9px;
      flex: 0 0 auto;
      min-width: 0;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      flex: 0 0 auto;
      position: relative;
      text-decoration: none;
    }

    /* Área táctil de 44 × 44 px sin alterar la caja visual del logo */
    .brand::after {
      content: "";
      position: absolute;
      inset: -11px -8px;
    }

    .brand-logo { width: 32px; height: auto; display: block; }
    .brand-logo__accent { fill: var(--logo-accent); }
    .brand-logo__ink { fill: var(--logo-text); }

    .brand-divider {
      flex: 0 0 auto;
      width: 1px;
      height: 18px;
      background: var(--divider);
    }

    .theme-toggle {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      flex: 0 0 auto;
      position: relative;
      width: 36px;
      height: 36px;
      padding: 0;
      border: 0;
      border-radius: 50%;
      background: transparent;
      color: var(--ink);
      cursor: pointer;
      transition: background-color 140ms var(--ease-out), color 140ms var(--ease-out);
    }

    .theme-toggle::after {
      content: "";
      position: absolute;
      inset: -4px;
      border-radius: 50%;
    }

    .theme-toggle:hover { background: var(--yellow); color: #000; }

    .theme-toggle svg { width: 16px; height: 16px; }
    .theme-toggle .icon-sun { display: none; }
    [data-theme="dark"] .theme-toggle .icon-sun { display: block; }
    [data-theme="dark"] .theme-toggle .icon-moon { display: none; }

    .brand-label {
      display: inline-block;
      inline-size: 110px;
      color: var(--ink);
      font: 500 10px/1.2 var(--font-mono);
      letter-spacing: 0.04em;
      white-space: nowrap;
    }

    .desktop-nav {
      margin-left: auto;
      display: flex;
      align-items: center;
      gap: clamp(12px, 1.8vw, 26px);
    }

    .desktop-nav a {
      display: inline-flex;
      align-items: center;
      min-height: 44px;
      padding: 0;
      color: var(--ink);
      font: 500 13px/1 var(--font-sans);
      text-decoration: underline;
      text-decoration-thickness: 1px;
      text-underline-offset: 5px;
      text-decoration-color: var(--nav-underline);
    }

    .desktop-nav a:hover { text-decoration-color: var(--ink); }

    .header-cta, .hero-cta, .closing-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 44px;
      padding: 0 18px;
      border: 1px solid #000;
      border-radius: 2px;
      background: var(--yellow);
      color: #000;
      font: 600 13px/1 var(--font-sans);
      text-decoration: none;
      white-space: nowrap;
      transition: transform 120ms var(--ease-out);
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: clamp(10px, 1.6vw, 22px);
      flex: 0 0 auto;
    }

    .lang-switcher {
      display: flex;
      align-items: center;
      gap: 2px;
    }

    .lang-switcher a {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-width: 44px;
      min-height: 44px;
      color: var(--muted);
      font: 500 10px/1 var(--font-mono);
      letter-spacing: 0.06em;
      text-decoration: none;
      transition: color 140ms var(--ease-out);
    }

    .lang-switcher a:hover { color: var(--ink); }

    .lang-switcher a[aria-current="page"] {
      color: var(--ink);
      text-decoration: underline;
      text-decoration-thickness: 1px;
      text-underline-offset: 4px;
      text-decoration-color: var(--yellow);
    }

    .lang-switcher span { color: var(--rule); font: 400 10px/1 var(--font-mono); }

    .header-cta:active, .hero-cta:active, .closing-cta:active { transform: scale(0.98); }

    .menu-toggle {
      display: none;
      margin-left: auto;
      flex: 0 0 auto;
      align-items: center;
      justify-content: center;
      min-width: 48px;
      min-height: 44px;
      padding: 0 10px;
      border: 1px solid var(--ink);
      border-radius: 2px;
      background: var(--paper);
      color: var(--ink);
      font: 500 11px/1 var(--font-mono);
      letter-spacing: 0.08em;
      text-transform: uppercase;
      cursor: pointer;
    }

    .mobile-menu {
      position: fixed;
      top: 72px;
      left: 0;
      right: 0;
      z-index: 95;
      max-height: calc(100dvh - 72px);
      overflow-y: auto;
      padding: 12px 20px 28px;
      background: var(--paper);
      border-bottom: 1px solid var(--ink);
      opacity: 0;
      transform: translateY(-8px);
      transition: opacity 160ms var(--ease-out), transform 160ms var(--ease-out);
    }

    .mobile-menu.is-open { opacity: 1; transform: translateY(0); }
    .mobile-nav { display: grid; }

    .mobile-nav a {
      display: flex;
      align-items: center;
      min-height: 48px;
      border-bottom: 1px solid var(--rule);
      color: var(--ink);
      font: 500 18px/1 var(--font-sans);
      text-decoration: none;
    }

    .mobile-lang {
      display: flex;
      align-items: center;
      gap: 2px;
      margin-top: 18px;
      padding-top: 8px;
      border-top: 1px solid var(--rule);
    }

    .mobile-cta {
      display: flex;
      align-items: center;
      justify-content: center;
      min-height: 48px;
      margin-top: 18px;
      border: 1px solid #000;
      border-radius: 2px;
      background: var(--yellow);
      color: #000;
      font: 600 14px/1 var(--font-sans);
      text-decoration: none;
    }

    /* ---------- Migas de pan ---------- */

    .breadcrumb {
      grid-column: 2 / -1;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 8px;
      padding-block: 26px 0;
      color: var(--muted);
      font: 500 10px/1.4 var(--font-mono);
      letter-spacing: 0.05em;
      text-transform: uppercase;
    }

    .breadcrumb a {
      display: inline-flex;
      align-items: center;
      min-width: 44px;
      min-height: 44px;
      text-decoration: underline;
      text-underline-offset: 3px;
      text-decoration-color: var(--divider);
    }

    .breadcrumb a:hover { text-decoration-color: var(--ink); }
    .breadcrumb span[aria-hidden="true"] { color: var(--rule); }
    .breadcrumb [aria-current="page"] { color: var(--ink); }

    /* ---------- Hero ---------- */

    .hero { padding-bottom: clamp(38px, 4.4vw, 62px); }

    .hero-copy {
      grid-column: 2 / span 8;
      align-self: start;
      min-width: 0;
      padding-top: var(--hero-top);
    }

    .hero-copy h1 {
      max-width: 17ch;
      font-size: var(--text-display);
      font-weight: 600;
      line-height: 0.98;
      letter-spacing: var(--tracking-display);
      text-wrap: balance;
      overflow-wrap: break-word;
      hyphens: auto;
    }

    .hero-standfirst {
      max-width: 48ch;
      margin-top: 22px;
      color: var(--muted);
      font-size: clamp(1rem, 1.3vw, 1.125rem);
      line-height: 1.5;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 18px clamp(20px, 3vw, 32px);
      margin-top: clamp(26px, 3.4vw, 38px);
    }

    .hero-cta { min-height: 48px; padding-inline: 20px; font-size: 14px; }

    .hero-alt {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      min-height: 44px;
      color: var(--ink);
      font: 500 14px/1.3 var(--font-sans);
      text-decoration: underline;
      text-decoration-thickness: 1px;
      text-underline-offset: 4px;
      text-decoration-color: var(--divider);
    }

    .hero-alt:hover { text-decoration-color: var(--ink); }
    .hero-alt span { transition: transform 160ms var(--ease-out); }
    .hero-alt:hover span { transform: translateX(4px); }

    .hero-meta {
      margin-top: clamp(20px, 2.4vw, 28px);
      padding-top: 14px;
      border-top: 1px solid var(--rule);
      color: var(--muted);
      font: 400 11px/1.6 var(--font-mono);
    }

    /* Hoja de colaboración: plana, reglas de 1 px, sin sombra */

    .collab-sheet {
      grid-column: 10 / span 4;
      align-self: start;
      min-width: 0;
      padding-top: var(--hero-top);
    }

    .sheet-title {
      padding-bottom: 10px;
      border-bottom: 1px solid var(--ink);
      color: var(--muted);
      font: 500 10px/1.4 var(--font-mono);
      letter-spacing: var(--tracking-label);
      text-transform: uppercase;
    }

    .collab-list { margin-top: 4px; }

    .collab-row {
      padding: 13px 0;
      border-bottom: 1px solid var(--rule);
    }

    .collab-row dt {
      color: var(--ink);
      font: 500 13px/1.4 var(--font-sans);
    }

    .collab-row dd {
      margin-top: 4px;
      color: var(--muted);
      font: 400 12px/1.5 var(--font-mono);
    }

    /* ---------- Franja de condiciones ---------- */

    .terms-strip {
      padding-block: clamp(26px, 3.2vw, 40px);
      border-top: 1px solid var(--ink);
      border-bottom: 1px solid var(--rule);
    }

    .terms-strip-body {
      grid-column: 2 / -1;
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      min-width: 0;
    }

    .terms-cell {
      min-width: 0;
      padding: 2px clamp(14px, 1.8vw, 26px) 2px 0;
    }

    .terms-cell + .terms-cell {
      padding-left: clamp(14px, 1.8vw, 26px);
      border-left: 1px solid var(--rule);
    }

    .terms-cell__name {
      display: block;
      font: 500 10px/1.4 var(--font-mono);
      letter-spacing: 0.08em;
      text-transform: uppercase;
    }

    .terms-cell__value {
      display: block;
      margin-top: 8px;
      font-size: 15px;
      line-height: 1.4;
    }

    /* ---------- Secciones ---------- */

    .section { padding-block: var(--section-block); border-top: 1px solid var(--ink); }

    .section-head {
      grid-column: 2 / -1;
      display: flex;
      align-items: flex-end;
      gap: 24px;
      margin-bottom: clamp(24px, 3.4vw, 40px);
    }

    .section-head h2 {
      flex: 0 0 auto;
      max-width: 22ch;
      font-size: var(--text-h2);
      font-weight: 600;
      line-height: 0.98;
      letter-spacing: -0.04em;
      text-wrap: balance;
    }

    .section-rule {
      flex: 1 1 auto;
      height: 1px;
      margin-bottom: 0.38em;
      background: var(--ink);
      transform: scaleX(0);
      transform-origin: left;
      transition: transform 280ms var(--ease-out);
    }

    .section-head.is-in .section-rule { transform: scaleX(1); }

    .section-body { grid-column: 2 / -1; min-width: 0; }

    .lead {
      max-width: 62ch;
      margin-bottom: clamp(22px, 3vw, 34px);
      color: var(--muted);
      font-size: clamp(1rem, 1.2vw, 1.1rem);
      line-height: 1.5;
    }

    .note {
      margin-top: 22px;
      padding-top: 14px;
      border-top: 1px solid var(--rule);
      color: var(--muted);
      font: 400 12px/1.6 var(--font-mono);
    }

    .text-link {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      min-height: 44px;
      margin-top: 18px;
      color: var(--ink);
      font: 500 14px/1.35 var(--font-sans);
      text-decoration: underline;
      text-decoration-thickness: 1px;
      text-underline-offset: 4px;
      text-decoration-color: var(--divider);
    }

    .text-link:hover { text-decoration-color: var(--ink); }
    .text-link span { transition: transform 160ms var(--ease-out); }
    .text-link:hover span { transform: translateX(4px); }

    /* ---------- Dos columnas ---------- */

    .split {
      display: grid;
      grid-template-columns: repeat(12, minmax(0, 1fr));
      gap: clamp(24px, 3vw, 44px);
      align-items: start;
    }

    .split > * { min-width: 0; }

    .col-a { grid-column: span 6; }
    .col-b { grid-column: span 6; }
    .col-wide { grid-column: span 8; }
    .col-narrow { grid-column: span 4; }

    .sheet-label {
      display: block;
      padding-bottom: 10px;
      border-bottom: 1px solid var(--ink);
      color: var(--muted);
      font: 500 10px/1.4 var(--font-mono);
      letter-spacing: var(--tracking-label);
      text-transform: uppercase;
    }

    .plain-list { margin-top: 4px; }

    .plain-list li {
      position: relative;
      max-width: 58ch;
      padding: 13px 0 13px 16px;
      border-bottom: 1px solid var(--rule);
      font-size: 15px;
      line-height: 1.45;
    }

    .plain-list li::before {
      content: "";
      position: absolute;
      left: 0;
      top: calc(13px + 0.72em);
      width: 9px;
      height: 1px;
      background: var(--ink);
    }

    .plain-list--excludes li::before {
      background: var(--muted);
    }

    /* ---------- Banda negra única: confidencialidad ---------- */

    .band {
      padding-block: var(--section-block);
      background: var(--ink);
      color: var(--paper);
      --band-rule: rgba(255, 255, 255, 0.28);
      --band-muted: rgba(255, 255, 255, 0.66);
    }

    [data-theme="dark"] .band {
      --band-rule: rgba(0, 0, 0, 0.28);
      --band-muted: rgba(0, 0, 0, 0.66);
    }

    .band .rail { color: var(--band-muted); }
    .band .rail-num { color: var(--yellow); }
    [data-theme="dark"] .band .rail-num { color: #000; }

    .band-head {
      grid-column: 2 / -1;
      display: flex;
      align-items: flex-end;
      gap: 24px;
      margin-bottom: clamp(24px, 3.4vw, 40px);
    }

    .band-head h2 {
      flex: 0 0 auto;
      max-width: 18ch;
      font-size: var(--text-h2);
      font-weight: 600;
      line-height: 0.98;
      letter-spacing: -0.04em;
      text-wrap: balance;
    }

    .band-rule {
      flex: 1 1 auto;
      height: 1px;
      margin-bottom: 0.38em;
      background: var(--band-rule);
      transform: scaleX(0);
      transform-origin: left;
      transition: transform 280ms var(--ease-out);
    }

    .band-head.is-in .band-rule { transform: scaleX(1); }

    .band-body {
      grid-column: 2 / -1;
      display: grid;
      grid-template-columns: repeat(12, minmax(0, 1fr));
      gap: clamp(24px, 3vw, 44px);
      align-items: start;
      min-width: 0;
    }

    .commit-list { grid-column: span 7; min-width: 0; }

    .commit-list li {
      padding: 16px 0 18px;
      border-top: 1px solid var(--band-rule);
    }

    .commit-list li:first-child { border-top-color: var(--band-rule); }

    .commit-list h3 {
      font: 500 10px/1.4 var(--font-mono);
      letter-spacing: 0.08em;
      text-transform: uppercase;
    }

    .commit-list p {
      max-width: 46ch;
      margin-top: 8px;
      font-size: clamp(1.05rem, 1.6vw, 1.3rem);
      line-height: 1.35;
      letter-spacing: -0.015em;
    }

    .needs {
      grid-column: span 5;
      min-width: 0;
      padding-top: 16px;
      border-top: 1px solid var(--band-rule);
    }

    .needs h3 {
      font: 500 10px/1.4 var(--font-mono);
      letter-spacing: 0.08em;
      text-transform: uppercase;
    }

    .needs-list { margin-top: 4px; }

    .needs-row {
      padding: 12px 0;
      border-bottom: 1px solid var(--band-rule);
    }

    .needs-row dt {
      font: 500 14px/1.4 var(--font-sans);
    }

    .needs-row dd {
      margin-top: 3px;
      color: var(--band-muted);
      font: 400 12px/1.5 var(--font-mono);
    }

    .needs-note {
      margin-top: 14px;
      color: var(--band-muted);
      font: 400 12px/1.6 var(--font-mono);
    }

    /* ---------- Proceso ---------- */

    .steps {
      display: grid;
      grid-template-columns: repeat(5, minmax(0, 1fr));
      border-top: 1px solid var(--ink);
    }

    .step {
      min-width: 0;
      padding: 18px 20px 0 0;
      border-right: 1px solid var(--rule);
    }

    .step + .step { padding-left: 20px; }
    .step:last-child { border-right: 0; padding-right: 0; }

    .step-num {
      display: block;
      margin-bottom: 16px;
      color: var(--muted);
      font: 500 10px/1.4 var(--font-mono);
      letter-spacing: 0.08em;
    }

    .step-name {
      display: block;
      font-size: 1.05rem;
      font-weight: 500;
      line-height: 1.25;
      letter-spacing: -0.015em;
    }

    .step-text {
      display: block;
      margin-top: 8px;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.45;
    }

    .process-note {
      display: grid;
      grid-template-columns: repeat(12, minmax(0, 1fr));
      gap: clamp(20px, 2.6vw, 36px);
      margin-top: clamp(26px, 3.2vw, 40px);
      padding-top: 18px;
      border-top: 1px solid var(--rule);
    }

    .process-note p {
      grid-column: span 6;
      max-width: 44ch;
      font-size: 16px;
      line-height: 1.5;
    }

    /* ---------- Modelo: tabla de condiciones ---------- */

    .terms-table {
      width: 100%;
      border-collapse: collapse;
      table-layout: fixed;
      text-align: left;
    }

    .terms-table caption {
      padding-bottom: 12px;
      color: var(--muted);
      font: 500 10px/1.4 var(--font-mono);
      letter-spacing: var(--tracking-label);
      text-transform: uppercase;
      text-align: left;
    }

    .terms-table th,
    .terms-table td {
      padding: 14px 16px 14px 0;
      border-bottom: 1px solid var(--rule);
      vertical-align: top;
      overflow-wrap: break-word;
    }

    .terms-table thead th {
      border-bottom: 1px solid var(--ink);
      color: var(--muted);
      font: 500 10px/1.4 var(--font-mono);
      letter-spacing: 0.08em;
      text-transform: uppercase;
    }

    .terms-table tbody th {
      width: 30%;
      font: 500 14px/1.4 var(--font-sans);
    }

    .terms-table tbody td {
      color: var(--muted);
      font-size: 14px;
      line-height: 1.5;
    }

    /* ---------- Prueba ---------- */

    .record {
      padding-top: 14px;
      border-top: 1px solid var(--ink);
    }

    .record-label {
      display: block;
      color: var(--muted);
      font: 500 10px/1.4 var(--font-mono);
      letter-spacing: 0.08em;
      text-transform: uppercase;
    }

    .record-name {
      display: block;
      margin-top: 10px;
      font-size: var(--text-h3);
      font-weight: 500;
      line-height: 1.1;
      letter-spacing: -0.025em;
    }

    /* Enlace del nombre de la relación a su single: conserva el diseño y el área de 44 px. */
    .record-link {
      display: inline-flex;
      align-items: center;
      min-height: 44px;
    }

    /* El subrayado va en el span: el nombre es un bloque y no hereda la decoración del ancla. */
    .record-link .record-name {
      text-decoration: underline;
      text-decoration-thickness: 1px;
      text-underline-offset: 4px;
      text-decoration-color: var(--rule);
    }

    .record-link:hover .record-name {
      text-decoration-color: var(--ink);
    }

    .record-meta {
      display: block;
      margin-top: 8px;
      color: var(--muted);
      font: 400 12px/1.6 var(--font-mono);
    }

    .record-note {
      margin-top: 14px;
      padding-top: 12px;
      border-top: 1px solid var(--rule);
      color: var(--muted);
      font: 400 12px/1.6 var(--font-mono);
    }

    .registry { margin-top: 4px; }

    .registry li {
      display: flex;
      align-items: baseline;
      justify-content: space-between;
      gap: 16px;
      padding: 13px 0;
      border-bottom: 1px solid var(--rule);
      font-size: 15px;
      line-height: 1.4;
    }

    .registry span {
      color: var(--muted);
      font: 400 11px/1.4 var(--font-mono);
      white-space: nowrap;
    }

    /* ---------- FAQ ---------- */

    .faq { border-top: 1px solid var(--ink); }

    .faq-item { border-bottom: 1px solid var(--rule); }

    .faq-item summary {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      min-height: 44px;
      padding: 16px 0;
      list-style: none;
      cursor: pointer;
      font-size: clamp(1.05rem, 1.5vw, 1.25rem);
      font-weight: 500;
      line-height: 1.3;
      letter-spacing: -0.02em;
    }

    .faq-item summary::-webkit-details-marker { display: none; }

    .faq-item summary::after {
      content: "+";
      flex: 0 0 auto;
      color: var(--muted);
      font: 400 18px/1 var(--font-mono);
    }

    .faq-item[open] summary::after { content: "\2212"; }

    .faq-item p {
      max-width: 68ch;
      padding-bottom: 20px;
      color: var(--muted);
      font-size: 16px;
      line-height: 1.55;
    }

    /* ---------- Cierre blanco ---------- */

    .closing-light {
      padding-block: var(--section-block);
      border-top: 1px solid var(--ink);
      background: var(--paper);
    }

    .closing-body { grid-column: 2 / -1; min-width: 0; }

    .closing-light h2 {
      max-width: 20ch;
      font-size: clamp(2.2rem, 4.8vw, 4.4rem);
      font-weight: 600;
      line-height: 0.98;
      letter-spacing: -0.045em;
      text-wrap: balance;
    }

    .closing-text {
      max-width: 52ch;
      margin-top: 20px;
      color: var(--muted);
      font-size: clamp(1rem, 1.2vw, 1.1rem);
      line-height: 1.5;
    }

    .closing-actions {
      display: flex;
      flex-wrap: wrap;
      align-items: flex-start;
      gap: clamp(22px, 3.4vw, 44px);
      margin-top: clamp(28px, 4vw, 44px);
      padding-top: 20px;
      border-top: 1px solid var(--rule);
    }

    .closing-cta {
      min-height: 48px;
      padding-inline: 20px;
      font-size: 14px;
      white-space: normal;
      text-align: center;
    }

    .closing-mails {
      display: grid;
      gap: 4px;
    }

    .closing-mails a {
      display: inline-flex;
      align-items: center;
      min-height: 44px;
      color: var(--ink);
      font: 400 13px/1.5 var(--font-mono);
      text-decoration: underline;
      text-decoration-thickness: 1px;
      text-underline-offset: 4px;
      text-decoration-color: var(--divider);
    }

    .closing-mails a:hover { text-decoration-color: var(--ink); }

    .closing-link {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      min-height: 44px;
      color: var(--ink);
      font: 500 13px/1.35 var(--font-sans);
      text-decoration: underline;
      text-decoration-thickness: 1px;
      text-underline-offset: 4px;
      text-decoration-color: var(--divider);
    }

    .closing-link:hover { text-decoration-color: var(--ink); }

    /* ---------- Pie ---------- */

    .site-footer { padding-block: 28px 92px; border-top: 1px solid var(--ink); background: var(--paper); }

    .footer-body {
      grid-column: 2 / -1;
      display: grid;
      grid-template-columns: minmax(0, 5fr) minmax(0, 4fr) minmax(0, 3fr);
      gap: clamp(18px, 3vw, 40px);
      align-items: start;
      min-width: 0;
    }

    .footer-legal { font-size: 14px; line-height: 1.45; }

    .footer-note { color: var(--muted); font-size: 13px; line-height: 1.45; }

    .footer-note span {
      display: block;
      margin-bottom: 3px;
      color: var(--ink);
      font: 500 9px/1.4 var(--font-mono);
      letter-spacing: 0.1em;
      text-transform: uppercase;
    }

    .legal { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px 18px; }

    .legal a {
      display: inline-flex;
      align-items: center;
      min-height: 44px;
      color: var(--ink);
      font-size: 12px;
      text-decoration: underline;
      text-decoration-thickness: 1px;
      text-underline-offset: 4px;
      text-decoration-color: var(--divider);
    }

    .js .reveal {
      opacity: 0;
      transform: translateY(10px);
      transition: opacity 220ms var(--ease-out), transform 220ms var(--ease-out);
    }

    .js .reveal.is-in { opacity: 1; transform: translateY(0); }

    @media (max-width: 980px) {
      .sheet { display: block; }
      .rail {
        position: static;
        flex-direction: row;
        align-items: baseline;
        gap: 10px;
        margin-bottom: 22px;
        padding-top: 8px;
        border-top: 1px solid var(--rule);
      }
      .rail-word { max-width: none; }
      .breadcrumb { padding-top: 20px; }
      .hero-copy { max-width: 760px; padding-top: 30px; }
      .collab-sheet { max-width: 560px; margin-top: 34px; padding-top: 0; }
      .terms-strip-body { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px 0; }
      .terms-cell:nth-child(3) { padding-left: 0; border-left: 0; }
      .split { display: block; }
      .col-b, .col-narrow { margin-top: 30px; }
      .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
      .step:nth-child(2n) { border-right: 0; padding-right: 0; }
      .step:nth-child(n + 3) { border-top: 1px solid var(--rule); padding-top: 18px; }
      .step:nth-child(3) { padding-left: 0; }
      .process-note { display: block; }
      .process-note p + p { margin-top: 14px; }
      .footer-body { display: block; }
      .footer-note { margin-top: 14px; }
      .legal { justify-content: flex-start; margin-top: 16px; }
    }

    @media (max-width: 960px) {
      .desktop-nav { display: none; }
      .menu-toggle { display: inline-flex; }
      .header-actions { display: none; }
      .header-shell { justify-content: space-between; }
    }

    @media (max-width: 640px) {
      :root { --shell: calc(100% - 40px); }
      .brand-label { inline-size: 92px; font-size: 9px; }
      .brand-logo { width: 28px; }
      .hero-copy h1 { font-size: var(--text-display-sm); }
      .hero-standfirst { max-width: 34ch; }
      .hero-actions { align-items: flex-start; flex-direction: column; gap: 14px; }
      .hero-cta { width: 100%; max-width: 100%; white-space: normal; text-align: center; }
      .terms-strip-body { grid-template-columns: 1fr; gap: 0; }
      .terms-cell { padding: 14px 0; border-left: 0 !important; }
      .terms-cell + .terms-cell { border-top: 1px solid var(--rule); }
      .section-head { align-items: flex-start; flex-direction: column; gap: 10px; }
      .section-rule { width: 100%; margin-bottom: 0; }
      .band-head { align-items: flex-start; flex-direction: column; gap: 10px; }
      .band-rule { width: 100%; margin-bottom: 0; }
      .band-body { display: block; }
      .needs { margin-top: 30px; }
      .steps { grid-template-columns: 1fr; }
      .step {
        border-right: 0;
        border-top: 1px solid var(--rule);
        padding: 16px 0;
      }
      .step:first-child { border-top: 0; }
      .step + .step { padding-left: 0; }
      .step-num { margin-bottom: 8px; }
      .terms-table tbody th { width: 34%; }
      .terms-table th, .terms-table td { padding-right: 10px; }
      .closing-actions { flex-direction: column; gap: 20px; }
      .closing-light h2 { max-width: 14ch; }
      .site-footer { padding-bottom: 104px; }
    }

    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
      }
      .js .reveal { opacity: 1 !important; transform: none !important; }
      .section-rule, .band-rule { transform: scaleX(1) !important; }
    }