/* ==========================================================================
   URSUS · Hoja del sitio · v1.0
   Requiere ursus-tokens.css cargado antes. Orden de capas declarado allí:
   reset → tokens → base → layout → components → utilities
   Sin frameworks ni librerías. Sin estilos sobre *.
   ========================================================================== */

/* ---- Fuentes autoalojadas (subset latin: cubre español e inglés) -------- */
@font-face {
  font-family: "Newsreader";
  src: url("../fonts/newsreader-opsz-latin.woff2") format("woff2-variations");
  font-weight: 300 600;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Hanken Grotesk";
  src: url("../fonts/hanken-grotesk-var-latin.woff2") format("woff2-variations");
  font-weight: 300 600;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Cormorant Garamond";
  src: url("../fonts/cormorant-garamond-500-italic-latin.woff2") format("woff2");
  font-weight: 500;
  font-style: italic;
  font-display: swap;
}
@font-face {
  font-family: "Jost";
  src: url("../fonts/jost-var-latin.woff2") format("woff2-variations");
  font-weight: 300 600;
  font-style: normal;
  font-display: swap;
}
/* Métricas de reserva ajustadas para que el cambio de fuente no mueva nada */
@font-face {
  font-family: "Newsreader Fallback";
  src: local("Georgia"), local("Times New Roman");
  size-adjust: 102%;
  ascent-override: 95%;
  descent-override: 28%;
}
@font-face {
  font-family: "Hanken Fallback";
  src: local("Arial"), local("Helvetica");
  size-adjust: 98%;
  ascent-override: 96%;
  descent-override: 25%;
}
@font-face {
  font-family: "Jost Fallback";
  src: local("Arial");
  size-adjust: 96%;
  ascent-override: 106%;
  descent-override: 37%;
}

/* Transición suave entre páginas (View Transitions, 300 ms) */
@view-transition { navigation: auto; }
::view-transition-old(root),
::view-transition-new(root) { animation-duration: var(--dur-page); animation-timing-function: var(--ease-serene); }
@media (prefers-reduced-motion: reduce) { @view-transition { navigation: none; } }

/* ---- reset: solo elementos concretos ----------------------------------- */
@layer reset {
  html { -webkit-text-size-adjust: none; text-size-adjust: none; }
  body, h1, h2, h3, h4, p, figure, blockquote, dl, dd, ol, ul { margin: 0; }
  ol[role="list"], ul[role="list"] { list-style: none; padding: 0; }
  img, svg, picture, video { display: block; max-inline-size: 100%; block-size: auto; }
  input, button, textarea, select { font: inherit; color: inherit; box-sizing: border-box; }
  button { cursor: pointer; background: none; border: 0; padding: 0; }
  a { color: inherit; }
  summary { cursor: pointer; }
}

/* ---- base -------------------------------------------------------------- */
@layer base {
  :root {
    accent-color: var(--ursus-gold);
    scrollbar-color: var(--ursus-slate) transparent;
    scroll-padding-block-start: calc(var(--header-h-compact) + var(--space-5));
    overflow-x: clip;
  }
  /* Interruptor de tema: por defecto sigue al sistema; estos solo fijan */
  :root.theme-light { color-scheme: light; }
  :root.theme-dark  { color-scheme: dark; }

  @media (prefers-reduced-motion: no-preference) {
    :root { scroll-behavior: smooth; }
  }

  body {
    min-block-size: 100dvh;
    font-family: var(--font-text);
    font-weight: var(--weight-text);
    font-size: var(--step-0);
    line-height: var(--leading-text);
    font-optical-sizing: auto;
    font-kerning: normal;
    background: var(--ursus-night);
    color: var(--ursus-ivory);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
  }

  h1, h2, h3, h4 {
    font-family: var(--font-display);
    font-weight: var(--weight-display);
    line-height: var(--leading-heading);
    letter-spacing: var(--tracking-display);
    text-wrap: balance;
  }
  h1 { font-size: var(--step-4); line-height: var(--leading-display); }
  h2 { font-size: var(--step-3); }
  h3 { font-size: var(--step-1); font-weight: var(--weight-strong); letter-spacing: 0; line-height: 1.3; }

  p, li, dd, blockquote { text-wrap: pretty; overflow-wrap: break-word; }
  p { max-inline-size: var(--measure); }

  strong, b { font-weight: var(--weight-strong); }

  ::selection { background: var(--ursus-gold); color: var(--ursus-night); }

  :focus-visible {
    outline: 2px solid var(--surface-focus, var(--ursus-gold));
    outline-offset: 3px;
    border-radius: 1px;
  }

  /* Cifras financieras: siempre tabulares */
  table, .num, data, time { font-variant-numeric: tabular-nums lining-nums; font-feature-settings: "tnum"; }
}

/* ---- layout ------------------------------------------------------------ */
@layer layout {
  /* Una sección = una superficie. El color viene siempre de los tokens. */
  [data-surface] { background-color: var(--surface-bg); color: var(--surface-fg); }

  .section { padding-block: var(--section-pad); position: relative; isolation: isolate; }
  .section--tight { padding-block: calc(var(--section-pad) * 0.6); }
  .section--flush-top { padding-block-start: 0; }

  .container { inline-size: min(100% - 2 * var(--gutter), var(--container)); margin-inline: auto; }
  .container--wide { inline-size: min(100% - 2 * var(--gutter), var(--container-wide)); }
  .container--narrow { inline-size: min(100% - 2 * var(--gutter), 52rem); }

  .stack { display: flex; flex-direction: column; gap: var(--stack-gap, var(--space-5)); }

  .split {
    display: grid; gap: var(--section-gap);
    @media (width >= 60rem) {
      grid-template-columns: var(--split, 5fr 7fr);
      column-gap: clamp(3rem, 6vw, 7rem);
      align-items: start;
    }
  }

  /* Columnas de texto separadas por líneas verticales (servicios, datos) */
  .columns-ruled {
    display: grid;
    gap: var(--space-7) 0;
    grid-template-columns: 1fr;
    @media (width >= 48rem) {
      grid-template-columns: repeat(var(--cols, 3), minmax(0, 1fr));
      & > * { padding-inline: var(--space-6); border-inline-start: var(--rule) solid var(--surface-rule); }
      & > :first-child { padding-inline-start: 0; border-inline-start: 0; }
      & > :last-child { padding-inline-end: 0; }
    }
  }
  .columns-ruled--4 {
    @media (width >= 48rem) and (width < 64rem) {
      --cols: 2;
      row-gap: var(--space-8);
      & > :nth-child(odd) { padding-inline-start: 0; border-inline-start: 0; }
    }
    @media (width >= 64rem) { --cols: 4; }
  }
}

/* ---- components -------------------------------------------------------- */
@layer components {

  /* Saltar al contenido */
  .skip-link {
    position: fixed; inset-block-start: var(--space-3); inset-inline-start: var(--space-3);
    z-index: var(--z-skip);
    padding: var(--space-3) var(--space-5);
    background: var(--ursus-ivory); color: var(--ursus-navy);
    border-radius: var(--radius-control);
    translate: 0 -200%;
    &:focus-visible { translate: 0 0; }
  }

  /* ================= Cabecera ================= */
  .site-header {
    position: fixed; inset-block-start: 0; inset-inline: 0;
    z-index: var(--z-header);
    block-size: var(--header-h);
    color: var(--ursus-ivory);
    background-color: transparent;
    border-block-end: var(--rule) solid transparent;
    transition: block-size var(--dur-quick) var(--ease-serene),
                background-color var(--dur-quick) var(--ease-serene),
                border-color var(--dur-quick) var(--ease-serene);
    &.is-scrolled {
      block-size: var(--header-h-compact);
      background-color: var(--ursus-navy);
      border-block-end-color: var(--ursus-ivory-rule-on-navy);
    }
    @supports (backdrop-filter: blur(1px)) {
      &.is-scrolled {
        background-color: color-mix(in srgb, var(--ursus-navy) 82%, transparent);
        backdrop-filter: blur(20px) saturate(140%);
        -webkit-backdrop-filter: blur(20px) saturate(140%);
      }
    }
  }
  .nav {
    display: flex; align-items: center; justify-content: space-between;
    block-size: 100%; gap: var(--space-5);
  }
  .nav__brand { display: block; flex: none; inline-size: 8.75rem; line-height: 0; }  /* ≥ 140 px: mínimo del logotipo horizontal */
  .nav__brand img { inline-size: 100%; block-size: auto; }
  .nav__links {
    display: none; align-items: center; gap: clamp(1.25rem, 2.4vw, 2.25rem);
    font-size: 0.9375rem; letter-spacing: 0.01em;
    & a { text-decoration: none; color: var(--ursus-ivory-muted-on-navy); transition: color var(--dur-quick) var(--ease-serene); }
    & a:hover, & a[aria-current="page"] { color: var(--ursus-ivory); }
    & a[aria-current="page"] { border-block-end: 1px solid var(--ursus-gold); padding-block-end: 3px; }
  }
  /* Submenú de Servicios: oculto hasta pasar el cursor o enfocar con teclado */
  .nav__item { position: relative; display: flex; align-items: center; }
  .nav__item--has-sub > a::after {
    content: ""; display: inline-block; inline-size: 0.35rem; block-size: 0.35rem; margin-inline-start: 0.45rem;
    border-inline-end: 1px solid currentColor; border-block-end: 1px solid currentColor;
    rotate: 45deg; translate: 0 -0.2rem; opacity: 0.7;
  }
  .nav__sub {
    position: absolute; inset-block-start: calc(100% + 0.9rem); inset-inline-start: -1.25rem;
    display: grid; min-inline-size: 17rem; padding-block: var(--space-3);
    background: color-mix(in srgb, var(--ursus-navy) 96%, transparent);
    border: var(--rule) solid var(--ursus-ivory-rule-on-navy); border-radius: var(--radius-control);
    opacity: 0; visibility: hidden; translate: 0 -4px;
    transition: opacity var(--dur-quick) var(--ease-serene), translate var(--dur-quick) var(--ease-serene), visibility 0s linear var(--dur-quick);
    &::before { content: ""; position: absolute; inset-inline: 0; inset-block-end: 100%; block-size: 0.9rem; }  /* puente para el cursor */
  }
  .nav__item:hover .nav__sub, .nav__item:focus-within .nav__sub { opacity: 1; visibility: visible; translate: 0 0; transition-delay: 0s; }
  .nav__links .nav__sub .nav__sub-link {
    display: block; padding: 0.6rem 1.25rem; white-space: nowrap; border: 0;
    &:hover, &[aria-current="page"] { color: var(--ursus-ivory); background: color-mix(in srgb, var(--ursus-ivory) 6%, transparent); }
  }
  @media (prefers-reduced-motion: reduce) { .nav__sub { translate: 0 0; } }

  .nav__tools { display: flex; align-items: center; gap: var(--space-4); }
  .nav__tools .nav__cta { display: none; }
  .nav__lang {
    font-size: 0.8125rem; font-weight: var(--weight-strong); letter-spacing: 0.08em;
    text-decoration: none; color: var(--ursus-ivory-muted-on-navy);
    min-block-size: 2.75rem; display: inline-flex; align-items: center;
    &:hover { color: var(--ursus-ivory); }
  }
  .icon-btn {
    inline-size: 2.75rem; block-size: 2.75rem;
    display: inline-grid; place-items: center;
    color: var(--ursus-ivory-muted-on-navy);
    border-radius: var(--radius-control);
    transition: color var(--dur-quick) var(--ease-serene);
    &:hover { color: var(--ursus-ivory); }
    & svg { inline-size: 1.25rem; block-size: 1.25rem; }
  }
  .theme-toggle .icon-moon { display: none; }
  :root[data-scheme="dark"] .theme-toggle .icon-sun { display: none; }
  :root[data-scheme="dark"] .theme-toggle .icon-moon { display: block; }

  @media (width >= 64rem) {
    .nav__links { display: flex; }
    .nav__tools .nav__cta { display: inline-flex; }
    .menu-toggle { display: none; }
  }
  .site-header .btn { min-block-size: 2.5rem; padding-inline: var(--space-5); font-size: 0.875rem; }

  /* Menú móvil: pantalla completa en azul URSUS, enlaces grandes */
  .mobile-menu {
    position: fixed; inset: 0; z-index: var(--z-menu);
    display: flex; flex-direction: column;
    padding: calc(var(--header-h) + var(--space-6)) var(--gutter) var(--space-7);
    background: var(--ursus-navy); color: var(--ursus-ivory);
    opacity: 0; visibility: hidden;
    transition: opacity var(--dur-quick) var(--ease-serene), visibility 0s linear var(--dur-quick);
    &.is-open { opacity: 1; visibility: visible; transition-delay: 0s; }
    & ul { display: grid; gap: var(--space-2); }
    & a.menu-link {
      display: block; padding-block: var(--space-2);
      font-size: clamp(2rem, 8vw, 3rem); font-weight: 300; letter-spacing: -0.01em;
      text-decoration: none; line-height: 1.2;
    }
    & .menu-sub ul { gap: 0; padding-inline-start: var(--space-1); margin-block: calc(-1 * var(--space-1)) var(--space-3); }
    & a.menu-sublink {
      display: block; padding-block: var(--space-2); font-size: 1.0625rem; text-decoration: none;
      color: var(--ursus-ivory-muted-on-navy);
      &:hover, &[aria-current="page"] { color: var(--ursus-ivory); }
    }
    & .menu-foot { margin-block-start: auto; display: grid; gap: var(--space-5); }
  }
  .menu-close { position: absolute; inset-block-start: calc((var(--header-h) - 2.75rem) / 2); inset-inline-end: var(--gutter); }
  @media (width >= 64rem) { .mobile-menu { display: none; } }

  /* ================= Botones y enlaces ================= */
  .btn {
    display: inline-flex; align-items: center; justify-content: center; gap: var(--space-3);
    min-block-size: 3.25rem; min-inline-size: 3rem;
    padding: 0 var(--space-6);
    border: var(--rule) solid transparent;
    border-radius: var(--radius-control);
    font-family: var(--font-text);
    font-size: 1rem; font-weight: var(--weight-strong);
    letter-spacing: 0.01em; line-height: 1.2;
    text-decoration: none; text-align: center;
    transition: background-color var(--dur-quick) var(--ease-serene),
                color var(--dur-quick) var(--ease-serene),
                border-color var(--dur-quick) var(--ease-serene);
  }
  .btn--primary {
    background-color: var(--btn-bg); color: var(--btn-fg);
    &:hover { background-color: color-mix(in srgb, var(--btn-bg) 86%, var(--surface-bg)); }
  }
  .btn--secondary {
    background: transparent; color: var(--surface-fg);
    border-color: color-mix(in srgb, var(--surface-fg) 38%, transparent);
    &:hover { border-color: var(--surface-fg); }
  }
  .site-header .btn--primary { background: var(--ursus-ivory); color: var(--ursus-navy); }
  .site-header .btn--primary:hover { background: color-mix(in srgb, var(--ursus-ivory) 88%, var(--ursus-navy)); }

  .actions { display: flex; flex-wrap: wrap; gap: var(--space-4); }

  /* Enlace editorial: subrayado dorado que aparece al pasar */
  .link-quiet {
    text-decoration: none;
    background: linear-gradient(var(--surface-accent-rule), var(--surface-accent-rule)) no-repeat 0 100% / 0% var(--rule);
    padding-block-end: 2px;
    transition: background-size var(--dur-base) var(--ease-serene);
    &:hover, &:focus-visible { background-size: 100% var(--rule); }
  }
  /* Enlace con flecha: siempre subrayado fino, la flecha avanza al pasar */
  .link-arrow {
    display: inline-flex; align-items: center; gap: 0.5em;
    font-weight: var(--weight-strong); font-size: 1rem;
    text-decoration: none;
    padding-block: var(--space-2);
    background: linear-gradient(var(--surface-accent-rule), var(--surface-accent-rule)) no-repeat 0 calc(100% - 4px) / 0% var(--rule);
    transition: background-size var(--dur-base) var(--ease-serene);
    & svg { inline-size: 1em; block-size: 1em; transition: translate var(--dur-quick) var(--ease-serene); }
    &:hover, &:focus-visible { background-size: calc(100% - 1.5em) var(--rule); }
    &:hover svg { translate: 3px 0; }
  }
  @media (forced-colors: active) { .link-quiet, .link-arrow { text-decoration: underline; } }

  /* ================= Tipografía de sección ================= */
  .label {
    display: block;
    font-size: 0.75rem; font-weight: var(--weight-strong);
    letter-spacing: var(--tracking-label); text-transform: uppercase;
    color: var(--surface-fg-muted);
  }
  .eyebrow { font-size: 1rem; color: var(--surface-fg-muted); letter-spacing: 0.01em; }
  .section-head { display: grid; gap: var(--space-5); margin-block-end: var(--section-gap); max-inline-size: 52rem; }
  .section-head--center { margin-inline: auto; text-align: center; justify-items: center; }
  .display { font-size: var(--step-4); line-height: 1.06; }
  .lead { font-size: var(--step-1); line-height: 1.5; color: var(--surface-fg-muted); max-inline-size: 46ch; font-weight: 300; }
  .prose { display: grid; gap: var(--space-5); color: var(--surface-fg-muted); & strong { color: var(--surface-fg); } }
  .prose--strong { color: var(--surface-fg); }
  .signoff { font-family: var(--font-quote); font-style: italic; font-weight: 500; font-size: var(--step-2); line-height: 1.3; color: var(--surface-fg); }

  /* ================= Hero ================= */
  .hero {
    display: grid; align-items: center;
    min-block-size: min(100svh, 62rem);
    padding-block: calc(var(--header-h) + var(--space-6)) var(--space-8);
    overflow: clip;
  }
  .hero__grid { display: grid; gap: var(--space-7); align-items: center; }
  .hero__text { display: grid; gap: var(--space-6); justify-items: start; }
  .hero h1 { font-size: clamp(3rem, 1.5rem + 4.4vw, 5.5rem); max-inline-size: 12ch; line-height: 1.02; letter-spacing: -0.02em; }
  .hero h1 span { display: block; }
  .hero .lead { max-inline-size: 40ch; }
  .hero__mark { inline-size: min(6.5rem, 28%); order: -1; }
  @media (width >= 60rem) {
    .hero__grid { grid-template-columns: 7fr 5fr; }
    .hero__mark { inline-size: 100%; max-inline-size: 30rem; order: 0; justify-self: end; }
  }
  .bear { inline-size: 100%; block-size: auto; overflow: visible; }
  .bear .bear__trace { fill: none; stroke: var(--ursus-ivory); stroke-width: 2; stroke-linejoin: round; opacity: 0; }

  /* Único momento orquestado: el oso se traza faceta a faceta (1.ª visita) */
  @media (prefers-reduced-motion: no-preference) {
    .play-intro .bear__trace { animation: bear-trace 900ms var(--ease-draw) both, bear-trace-out 400ms var(--ease-serene) 900ms forwards; stroke-dasharray: 1; }
    .play-intro .bear__body  { animation: fade-in 550ms var(--ease-serene) 600ms both; }
    .play-intro .bear__facet { animation: fade-in 400ms var(--ease-serene) 900ms both; }
    .play-intro .bear__shard { animation: shard-in 450ms var(--ease-serene) 1050ms both; }
    .play-intro .hero__text > * { animation: rise-in var(--dur-slow) var(--ease-serene) both; }
    .play-intro .hero__text > :nth-child(1) { animation-delay: 500ms; }
    .play-intro .hero__text > :nth-child(2) { animation-delay: 600ms; }
    .play-intro .hero__text > :nth-child(3) { animation-delay: 750ms; }
    .play-intro .hero__text > :nth-child(4) { animation-delay: 850ms; }
  }
  @keyframes bear-trace { from { stroke-dashoffset: 1; opacity: 1; } to { stroke-dashoffset: 0; opacity: 1; } }
  @keyframes bear-trace-out { from { opacity: 1; } to { opacity: 0; } }
  @keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }
  @keyframes shard-in { from { opacity: 0; translate: 0 -6px; } to { opacity: 1; translate: 0 0; } }
  @keyframes rise-in { from { opacity: 0; translate: 0 14px; } to { opacity: 1; translate: 0 0; } }

  /* Cabecera de página interna */
  .page-hero {
    padding-block: calc(var(--header-h) + var(--space-9)) var(--space-9);
    overflow: clip;
  }
  .page-hero__inner { display: grid; gap: var(--space-6); & > * { max-inline-size: 56rem; } }
  .page-hero h1 { font-size: var(--step-5); line-height: 1.02; letter-spacing: -0.02em; }
  .breadcrumb {
    display: flex; flex-wrap: wrap; gap: var(--space-2); font-size: 0.875rem; color: var(--surface-fg-muted);
    & a { text-decoration: none; &:hover { color: var(--surface-fg); } }
    & li + li::before { content: "/"; margin-inline-end: var(--space-2); opacity: 0.5; }
  }

  /* Motivo de facetas: solo sobre superficies azules, opacidad 3–5 % */
  .facets::before {
    content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
    opacity: 0.04;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='416' viewBox='0 0 240 416'%3E%3Cg fill='none' stroke='%23F7F6F2' stroke-width='1'%3E%3Cpath d='M0 0L120 208L0 416M240 0L120 208L240 416M0 208H240M60 104L180 104M60 312H180'/%3E%3C/g%3E%3C/svg%3E");
    background-size: 240px 416px;
    mask-image: linear-gradient(to bottom, #000 40%, transparent);
  }
  @media (forced-colors: active) { .facets::before { display: none; } }

  /* Ursus Cut: plano con borde exacto a 60°, máx. 1–2 usos en el sitio */
  .ursus-cut {
    position: absolute; inset-block: 0; inset-inline-end: 0;
    inline-size: var(--cut-width, 45%);
    background: var(--cut-bg, var(--ursus-navy));
    transform: skewX(-30deg); transform-origin: 0 100%;
    z-index: -1;
  }

  /* ================= Credibilidad ================= */
  .datum {
    padding-block-start: var(--space-5);
    border-block-start: var(--rule) solid var(--surface-accent-rule);
    & .datum__value { font-family: var(--font-display); font-weight: var(--weight-display); font-size: var(--step-3); line-height: 1; letter-spacing: -0.02em; white-space: nowrap; }
    & .datum__label { margin-block-start: var(--space-4); color: var(--surface-fg-muted); font-size: 1rem; line-height: 1.5; max-inline-size: 26ch; }
  }
  /* Credibilidad: cuatro datos independientes, cada uno con su línea dorada */
  .credibility.columns-ruled, .credibility .columns-ruled { column-gap: var(--space-7);
    & > * { border-inline-start: 0; padding-inline: 0; }
  }

  /* ================= Punto de partida (voz del CFO) ================= */
  .voices { display: grid; gap: var(--space-2); margin-block: var(--section-gap); }
  .voices p {
    font-size: var(--step-4); font-weight: 300; line-height: 1.12; letter-spacing: -0.015em;
    max-inline-size: 22ch; color: var(--surface-fg);
  }
  /* La voz del CFO se ilumina al leerla (scroll-driven, sin JS) */
  @supports (animation-timeline: view()) {
    @media (prefers-reduced-motion: no-preference) {
      .voices p {
        animation: voice-in linear both;
        animation-timeline: view();
        animation-range: entry 10% cover 42%;
      }
    }
  }
  @keyframes voice-in { from { color: color-mix(in srgb, var(--surface-fg) 22%, var(--surface-bg)); } to { color: var(--surface-fg); } }

  /* Gráfico de convergencia: cada área con su número → una sola verdad */
  .converge { margin-block: var(--space-8) var(--space-6); }
  .converge svg { inline-size: 100%; block-size: auto; overflow: visible; }
  .converge .c-line { fill: none; stroke: var(--surface-fg); stroke-opacity: 0.32; stroke-width: 1.25; vector-effect: non-scaling-stroke; }
  .converge .c-truth { fill: none; stroke: var(--ursus-gold); stroke-width: 2; vector-effect: non-scaling-stroke; }
  .converge .c-dot { fill: var(--ursus-gold); }
  .converge figcaption { display: flex; justify-content: space-between; gap: var(--space-5); margin-block-start: var(--space-4); font-size: 0.875rem; color: var(--surface-fg-muted); }
  @media (prefers-reduced-motion: no-preference) {
    .js .converge :is(.c-lines, .c-truth-g) { clip-path: inset(-10px 100% -10px 0); }
    .js .converge.is-visible .c-lines { animation: reveal 1500ms var(--ease-draw) forwards; }
    .js .converge.is-visible .c-truth-g { animation: reveal 1000ms var(--ease-draw) 1300ms forwards; }
  }
  @keyframes reveal { to { clip-path: inset(-10px 0 -10px 0); } }
  @keyframes draw { to { stroke-dashoffset: 0; } }

  /* Tabla De → A */
  .shift { display: grid; border-block-start: var(--rule) solid var(--surface-rule); }
  .shift__row {
    display: grid; gap: var(--space-2) var(--space-6);
    padding-block: var(--space-6);
    border-block-end: var(--rule) solid var(--surface-rule);
    @media (width >= 48rem) { grid-template-columns: 12rem 1fr 2rem 1fr; align-items: baseline; }
  }
  .shift__dim { font-size: 0.875rem; font-weight: var(--weight-strong); letter-spacing: 0.02em; color: var(--surface-fg-muted); }
  .shift__from { color: var(--surface-fg-muted); text-decoration: line-through; text-decoration-color: color-mix(in srgb, var(--surface-fg) 30%, transparent); text-decoration-thickness: 1px; }
  .shift__arrow { color: var(--surface-fg-muted); display: none; @media (width >= 48rem) { display: block; } }
  .shift__to { font-size: var(--step-1); font-weight: 400; line-height: 1.35; }

  /* ================= Servicios ================= */
  .service { display: grid; gap: var(--space-5); align-content: start; }
  .service h3 { font-size: var(--step-2); font-weight: 400; letter-spacing: -0.01em; line-height: 1.18; }
  .service p { color: var(--surface-fg-muted); }
  .service .link-arrow { justify-self: start; margin-block-start: var(--space-2); }
  .cta-band {
    display: grid; gap: var(--space-5); align-items: center;
    margin-block-start: var(--section-gap); padding-block-start: var(--space-7);
    border-block-start: var(--rule) solid var(--surface-rule);
    @media (width >= 48rem) { grid-template-columns: 1fr auto; }
    & p { font-size: var(--step-1); font-weight: 300; line-height: 1.4; max-inline-size: 34ch; }
  }

  /* ================= Principio ================= */
  .quote {
    font-family: var(--font-quote); font-style: italic; font-weight: 500;
    font-size: clamp(1.75rem, 1.1rem + 2.4vw, 3.25rem); line-height: 1.25;
    text-wrap: balance; text-align: center;
    margin-inline: auto;
    & > span { display: block; }
  }
  .quote-rule { inline-size: 3rem; block-size: 1px; background: var(--ursus-gold); margin: 0 auto var(--space-7); border: 0; }
  .quote-cite { display: block; margin-block-start: var(--space-7); text-align: center; font-size: 0.875rem; letter-spacing: 0.04em; color: var(--surface-fg-muted); font-style: normal; }

  /* ================= Sobre URSUS ================= */
  .portrait {
    position: relative; isolation: isolate; overflow: clip;
    aspect-ratio: 4 / 5;
    background: var(--ursus-navy);
    border-radius: var(--radius-control);
    display: grid; place-items: center;
    & img.portrait__photo { position: absolute; inset: 0; inline-size: 100%; block-size: 100%; object-fit: cover; }
    & .portrait__mark { inline-size: 46%; }
    & figcaption {
      position: absolute; inset-inline: var(--space-5); inset-block-end: var(--space-5);
      display: flex; justify-content: space-between; align-items: baseline; gap: var(--space-4);
      color: var(--ursus-ivory); font-size: 0.875rem;
      padding-block-start: var(--space-4); border-block-start: var(--rule) solid var(--ursus-ivory-rule-on-navy);
      & span:last-child { color: var(--ursus-ivory-muted-on-navy); }
    }
    & .ursus-cut { --cut-width: 38%; --cut-bg: var(--ursus-night); }
  }

  /* ================= Método ================= */
  .steps {
    position: relative;
    display: grid; gap: var(--space-8);
    counter-reset: step;
    @media (width >= 60rem) { grid-template-columns: repeat(4, 1fr); gap: var(--space-6); padding-block-start: var(--space-7); }
  }
  .steps__track, .steps__progress {
    display: none;
    @media (width >= 60rem) { display: block; position: absolute; inset-inline: 0; inset-block-start: 0; block-size: 1px; }
  }
  .steps__track { background: var(--surface-rule); }
  .steps__progress { background: var(--ursus-gold); transform-origin: 0 50%; }
  @supports (animation-timeline: view()) {
    @media (prefers-reduced-motion: no-preference) {
      .steps__progress { animation: progress linear both; animation-timeline: view(); animation-range: entry 30% cover 55%; }
    }
  }
  @keyframes progress { from { scale: 0 1; } to { scale: 1 1; } }
  .step { display: grid; gap: var(--space-4); align-content: start; position: relative;
    padding-inline-start: var(--space-6); border-inline-start: var(--rule) solid var(--surface-rule);
    @media (width >= 60rem) { padding-inline-start: 0; border: 0; }
  }
  .step__num { font-size: var(--step-3); font-weight: 300; line-height: 1; color: var(--surface-fg-muted); letter-spacing: -0.02em; }
  .step h3 { font-size: var(--step-2); font-weight: 400; letter-spacing: -0.01em; }
  .step p { color: var(--surface-fg-muted); }
  .steps .step::before {
    @media (width >= 60rem) {
      content: ""; position: absolute; inset-block-start: calc(-1 * var(--space-7) - 4px); inset-inline-start: 0;
      inline-size: 9px; block-size: 9px; rotate: 45deg; background: var(--surface-bg); border: 1px solid var(--surface-fg-muted);
    }
  }

  /* Método detallado */
  .phase { display: grid; gap: var(--space-6); padding-block: var(--space-8); border-block-start: var(--rule) solid var(--surface-rule);
    @media (width >= 60rem) { grid-template-columns: 4fr 8fr; column-gap: var(--space-9); }
  }
  .phase__head { display: grid; gap: var(--space-3); align-content: start; }
  .phase__num { font-size: var(--step-4); font-weight: 300; line-height: 1; letter-spacing: -0.02em; }
  .phase dl { display: grid; gap: var(--space-5); @media (width >= 48rem) { grid-template-columns: repeat(3, 1fr); gap: var(--space-6); } }
  .phase dt { font-size: 0.75rem; font-weight: var(--weight-strong); letter-spacing: var(--tracking-label); text-transform: uppercase; color: var(--surface-fg-muted); margin-block-end: var(--space-3); padding-block-start: var(--space-3); border-block-start: var(--rule) solid var(--surface-rule); }
  .phase dd { color: var(--surface-fg); }

  /* ================= Criterio ================= */
  .articles { display: grid; border-block-start: var(--rule) solid var(--surface-rule); }
  .article-row {
    display: grid; gap: var(--space-2) var(--space-6);
    padding-block: var(--space-6);
    border-block-end: var(--rule) solid var(--surface-rule);
    @media (width >= 48rem) { grid-template-columns: 11rem 1fr auto; align-items: baseline; }
    & h3 { font-size: var(--step-2); font-weight: 400; letter-spacing: -0.01em; line-height: 1.2; }
    & p { color: var(--surface-fg-muted); margin-block-start: var(--space-3); font-size: 1rem; }
  }
  .article-row__topic { font-size: 0.875rem; color: var(--surface-fg-muted); }
  .tag { display: inline-block; font-size: 0.75rem; letter-spacing: 0.06em; padding: 0.3em 0.7em; border: var(--rule) solid var(--surface-rule); border-radius: var(--radius-control); color: var(--surface-fg-muted); white-space: nowrap; }

  /* ================= Contenido de servicio ================= */
  .voices-inline { display: grid; gap: var(--space-5); @media (width >= 48rem) { grid-template-columns: repeat(3, 1fr); gap: var(--space-6); } }
  .voices-inline blockquote {
    font-size: var(--step-2); font-weight: 300; line-height: 1.25; letter-spacing: -0.01em;
    padding-block-start: var(--space-5); border-block-start: var(--rule) solid var(--surface-rule);
  }
  .checklist { display: grid; gap: 0; border-block-start: var(--rule) solid var(--surface-rule); }
  .checklist li {
    display: grid; grid-template-columns: 1.75rem 1fr; gap: var(--space-3);
    padding-block: var(--space-5); border-block-end: var(--rule) solid var(--surface-rule);
    &::before { content: ""; inline-size: 0.75rem; block-size: 1px; background: var(--surface-accent-rule); margin-block-start: 0.85em; }
  }
  .tools { display: flex; flex-wrap: wrap; gap: var(--space-3); }
  .tools li { font-size: 0.9375rem; padding: 0.55em 1em; border: var(--rule) solid var(--surface-rule); border-radius: var(--radius-control); }
  .faq { display: grid; border-block-start: var(--rule) solid var(--surface-rule); }
  .faq details { border-block-end: var(--rule) solid var(--surface-rule); }
  .faq summary {
    list-style: none; display: flex; justify-content: space-between; align-items: center; gap: var(--space-5);
    padding-block: var(--space-6); font-size: var(--step-1); font-weight: 400;
    &::-webkit-details-marker { display: none; }
    &::after { content: ""; flex: none; inline-size: 0.75rem; block-size: 0.75rem; border-inline-end: 1px solid currentColor; border-block-end: 1px solid currentColor; rotate: 45deg; translate: 0 -25%; transition: rotate var(--dur-quick) var(--ease-serene); }
  }
  .faq details[open] summary::after { rotate: 225deg; translate: 0 25%; }
  .faq details p { padding-block-end: var(--space-6); color: var(--surface-fg-muted); }
  .faq details::details-content { block-size: 0; overflow: clip; transition: block-size var(--dur-base) var(--ease-serene), content-visibility var(--dur-base) allow-discrete; }
  .faq details[open]::details-content { block-size: auto; }
  @supports (interpolate-size: allow-keywords) { :root { interpolate-size: allow-keywords; } }

  .service-index { display: grid; border-block-start: var(--rule) solid var(--surface-rule); }
  .service-index__item {
    display: grid; gap: var(--space-4) var(--space-8); padding-block: var(--space-8);
    border-block-end: var(--rule) solid var(--surface-rule);
    @media (width >= 60rem) { grid-template-columns: 5fr 7fr; }
    & h2 { font-size: var(--step-3); }
    & .for { font-size: 1rem; color: var(--surface-fg-muted); }
  }

  .principles { display: grid; gap: var(--space-6); @media (width >= 48rem) { grid-template-columns: repeat(2, 1fr); gap: var(--space-8) var(--space-8); } }
  .principles li { display: grid; gap: var(--space-3); padding-block-start: var(--space-5); border-block-start: var(--rule) solid var(--surface-rule);
    & strong { font-size: var(--step-1); font-weight: 400; }
    & span { color: var(--surface-fg-muted); }
  }

  /* ================= Contacto ================= */
  .contact { display: grid; gap: var(--section-gap);
    @media (width >= 60rem) { grid-template-columns: 5fr 7fr; column-gap: clamp(3rem, 7vw, 8rem); }
  }
  .contact__details { display: grid; gap: var(--space-4); margin-block-start: var(--space-7); padding-block-start: var(--space-6); border-block-start: var(--rule) solid var(--surface-rule);
    & div { display: grid; grid-template-columns: 7.5rem 1fr; gap: var(--space-4); font-size: 1rem; }
    & dt { color: var(--surface-fg-muted); }
    & a { text-decoration: none; }
  }
  .form { display: grid; gap: var(--space-5); grid-template-columns: 1fr;
    @media (width >= 40rem) { grid-template-columns: 1fr 1fr; }
    & .field--full { grid-column: 1 / -1; }
  }
  .field {
    display: grid; gap: var(--space-2); align-content: start;
    & label { font-size: 0.875rem; color: var(--surface-fg-muted); }
    & :is(input, textarea, select) {
      min-block-size: 3.25rem; inline-size: 100%;
      padding: var(--space-3) var(--space-4);
      background: color-mix(in srgb, var(--surface-fg) 4%, transparent);
      border: var(--rule) solid var(--surface-rule);
      border-radius: var(--radius-control);
      color: var(--surface-fg);
      transition: border-color var(--dur-quick) var(--ease-serene), background-color var(--dur-quick) var(--ease-serene);
      &:hover { border-color: var(--surface-fg-muted); }
      &:focus-visible { border-color: var(--surface-focus); outline-offset: 1px; background: transparent; }
      &:user-invalid { border-color: var(--surface-accent-rule); }
    }
    & textarea { resize: vertical; field-sizing: content; min-block-size: 8.5rem; }
    & .field__error { font-size: 0.875rem; color: var(--surface-accent-text); min-block-size: 0; }
    & .field__error:empty { display: none; }
  }
  .check { display: flex; gap: var(--space-3); align-items: start; font-size: 0.9375rem; color: var(--surface-fg-muted);
    & input { inline-size: 1.125rem; block-size: 1.125rem; margin-block-start: 0.25em; flex: none; }
    & a { color: var(--surface-fg); }
  }
  .form__foot { display: flex; flex-wrap: wrap; gap: var(--space-5); align-items: center; justify-content: space-between; }
  .form__note { font-size: 0.875rem; color: var(--surface-fg-muted); }
  .agenda {
    display: block; inline-size: 100%; min-block-size: 46rem; border: var(--rule) solid var(--surface-rule);
    border-radius: var(--radius-control); background: var(--ursus-ivory); color-scheme: light;
  }
  .form__alert { padding: var(--space-4) var(--space-5); border: var(--rule) solid var(--surface-accent-rule); border-radius: var(--radius-control); font-size: 1rem;
    &[hidden] { display: none; } }
  .hp { position: absolute; inline-size: 1px; block-size: 1px; overflow: hidden; clip-path: inset(50%); }

  /* ================= Texto legal ================= */
  .legal { display: grid; gap: var(--space-5); color: var(--surface-fg-muted);
    & h2 { font-size: var(--step-2); color: var(--surface-fg); margin-block-start: var(--space-6); font-weight: 400; }
    & ul { display: grid; gap: var(--space-2); padding-inline-start: 1.25em; }
    & a { color: var(--surface-fg); }
    & strong { color: var(--surface-fg); }
  }
  .pending { background: color-mix(in srgb, var(--ursus-gold) 22%, transparent); color: inherit; padding-inline: 0.2em; border-radius: 2px; }

  /* ================= Pie ================= */
  .site-footer { padding-block: var(--space-9) var(--space-6); border-block-start: var(--rule) solid var(--surface-rule); }
  .footer__top { display: grid; gap: var(--space-8);
    @media (width >= 60rem) { grid-template-columns: 5fr 7fr; }
  }
  .footer__brand { display: grid; gap: var(--space-5); align-content: start;
    & img { inline-size: 10rem; block-size: auto; }
    & p { color: var(--surface-fg-muted); font-size: 1rem; max-inline-size: 36ch; }
  }
  .footer__nav { display: grid; gap: var(--space-6); grid-template-columns: repeat(2, 1fr);
    @media (width >= 48rem) { grid-template-columns: repeat(3, 1fr); }
    & h2 { font-size: 0.75rem; font-weight: var(--weight-strong); letter-spacing: var(--tracking-label); text-transform: uppercase; color: var(--surface-fg-muted); margin-block-end: var(--space-4); font-family: var(--font-text); }
    & ul { display: grid; gap: var(--space-3); font-size: 0.9375rem; }
    & a { text-decoration: none; }
  }
  .footer__bottom { display: flex; flex-wrap: wrap; gap: var(--space-4) var(--space-6); justify-content: space-between; align-items: center;
    margin-block-start: var(--space-9); padding-block-start: var(--space-5); border-block-start: var(--rule) solid var(--surface-rule);
    font-size: 0.875rem; color: var(--surface-fg-muted);
    & a { text-decoration: none; &:hover { color: var(--surface-fg); } }
    & .signoff { font-size: 1.375rem; }
  }
  .footer__meta { display: flex; flex-wrap: wrap; gap: var(--space-5); align-items: center; }

  /* Volver arriba: discreto, aparece tras dos pantallas */
  .to-top {
    position: fixed; inset-block-end: var(--space-5); inset-inline-end: var(--space-5); z-index: 40;
    inline-size: 2.75rem; block-size: 2.75rem; display: grid; place-items: center;
    background: color-mix(in srgb, var(--ursus-navy) 88%, transparent);
    color: var(--ursus-ivory);
    border: var(--rule) solid var(--ursus-ivory-rule-on-navy); border-radius: var(--radius-control);
    opacity: 0; visibility: hidden; translate: 0 8px;
    transition: opacity var(--dur-quick) var(--ease-serene), translate var(--dur-quick) var(--ease-serene), visibility 0s linear var(--dur-quick);
    &.is-visible { opacity: 1; visibility: visible; translate: 0 0; transition-delay: 0s; }
    & svg { inline-size: 1rem; block-size: 1rem; }
    @supports (backdrop-filter: blur(1px)) { backdrop-filter: blur(12px); }
  }

  /* Aviso discreto de idioma */
  .lang-hint {
    position: fixed; inset-inline: var(--space-4); inset-block-end: var(--space-4); z-index: 45;
    max-inline-size: 26rem; margin-inline-start: auto;
    display: flex; gap: var(--space-4); align-items: center; justify-content: space-between;
    padding: var(--space-4) var(--space-5);
    background: var(--ursus-ivory); color: var(--ursus-navy);
    border-radius: var(--radius-control); font-size: 0.9375rem;
    border: var(--rule) solid var(--ursus-navy-rule-on-ivory);
    & a { font-weight: var(--weight-strong); }
    &[hidden] { display: none; }
  }

  /* 404 y gracias */
  .center-screen { min-block-size: 100svh; display: grid; align-items: center; padding-block: calc(var(--header-h) + var(--space-8)) var(--space-8); }
}

/* ---- utilities --------------------------------------------------------- */
@layer utilities {
  .visually-hidden:not(:focus-within, :active) {
    clip-path: inset(50%); block-size: 1px; inline-size: 1px;
    overflow: hidden; position: absolute; white-space: nowrap;
  }
  .text-muted { color: var(--surface-fg-muted); }
  .text-accent { color: var(--surface-accent-text); }
  .mt-section { margin-block-start: var(--section-gap); }
  .mt-6 { margin-block-start: var(--space-6); }
  .mt-7 { margin-block-start: var(--space-7); }
  .center { text-align: center; }
}