/* ==========================================================================
   Conducta. Estilos de la landing
   Capas: 1. tokens, 2. base, 3. layout, 4. componentes, 5. secciones
   ========================================================================== */

/* 1. Tokens ---------------------------------------------------------------- */

:root {
  /* Color */
  --ink: #0B121E;
  --navy: #1C395C;
  --paper: #F8F9FA;
  --gold: #AF8C53;            /* solo .dot */

  /* Texto sobre oscuro (ink / navy) */
  --on-dark-1: #F8F9FA;
  --on-dark-2: rgba(248,249,250,.74);
  --on-dark-3: rgba(248,249,250,.56); /* solo texto de 16 px o más */
  --line-dark: rgba(248,249,250,.10);
  --surface-dark: rgba(248,249,250,.04);

  /* Texto sobre claro (paper) */
  --on-light-1: #0B121E;
  --on-light-2: rgba(11,18,30,.72);
  --on-light-3: rgba(11,18,30,.56);
  --line-light: rgba(11,18,30,.10);
  --surface-light: rgba(28,57,92,.05);

  /* Tipografía (8 pasos, nada fuera de esta escala) */
  --font: "helvetica-neue-lt-pro", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --fs-display: clamp(2.75rem, 5.6vw, 5rem);    /* H1 */
  --fs-h2: clamp(2.125rem, 3.8vw, 3.5rem);
  --fs-title: clamp(1.75rem, 3vw, 2.5rem);     /* títulos de las tarjetas de servicios */
  --fs-h3: clamp(1.25rem, 1.6vw, 1.5rem);
  --fs-lead: clamp(1.125rem, 1.4vw, 1.3125rem);
  --fs-body: 1.0625rem;                          /* 17 px */
  --fs-small: 0.875rem;                          /* 14 px */
  --fs-micro: 0.75rem;                           /* 12 px, solo la nota debajo del CTA del hero */
  --lh-tight: 1.04;   /* display y H2 */
  --lh-snug: 1.25;    /* H3 */
  --lh-body: 1.62;
  --tracking-display: -0.03em;
  --tracking-h2: -0.022em;
  --tracking-h3: -0.01em;

  /* Layout */
  --container: 1240px;
  --gutter: clamp(20px, 5vw, 64px);
  --section-y: clamp(96px, 11vw, 168px);
  --grid-gap: clamp(16px, 2vw, 28px);
  --measure: 62ch;     /* ancho máximo de párrafos */
  --header-h: 72px;

  /* Corte a 45° (esquina inferior derecha, forma del isotipo) */
  --cut-hero: clamp(64px, 9vw, 144px); /* solo el bloque del hero */
  --cut-xl: clamp(28px, 3vw, 44px);    /* imágenes grandes: caso destacado, foto de dirección */
  --cut-lg: clamp(20px, 2vw, 28px);    /* imágenes de casos en grilla, tarjetas de servicios */
  --cut-sm: 10px;                      /* botones */
  --radius: 0;                         /* no se usa border-radius en ningún elemento */

  /* Motion */
  --ease: cubic-bezier(.2,.7,.2,1);
  --dur: 480ms;
}

/* Temas de sección: cada fondo define sus colores de texto, superficie,
   anillo de foco y botón. Los componentes solo usan --fg-*, --surface, etc. */
.theme-ink,
.theme-navy,
.site-header,
.mobile-nav {
  --fg-1: var(--on-dark-1);
  --fg-2: var(--on-dark-2);
  --fg-3: var(--on-dark-3);
  --surface: var(--surface-dark);
  --ring: var(--on-dark-1);
  --btn-bg: var(--paper);
  --btn-fg: var(--ink);
  color: var(--fg-1);
}

.theme-paper {
  --fg-1: var(--on-light-1);
  --fg-2: var(--on-light-2);
  --fg-3: var(--on-light-3);
  --surface: var(--surface-light);
  --ring: var(--on-light-1);
  --btn-bg: var(--ink);
  --btn-fg: var(--paper);
  color: var(--fg-1);
}

.theme-ink { background: var(--ink); }
.theme-navy { background: var(--navy); }
.theme-paper { background: var(--paper); }

/* 2. Base ------------------------------------------------------------------ */

*, *::before, *::after { box-sizing: border-box; }

* { margin: 0; padding: 0; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: calc(var(--header-h) + 16px);
}

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

body {
  background: var(--ink);
  color: var(--on-dark-1);
  font-family: var(--font);
  font-size: var(--fs-body);
  font-weight: 400;
  line-height: var(--lh-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body.is-menu-open { overflow: hidden; }

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

a { color: inherit; }

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

ul, ol { list-style: none; }

h1, h2, h3 { font-weight: 700; }

p { max-width: var(--measure); }

strong { font-weight: 700; }

:focus-visible {
  outline: 2px solid var(--ring, var(--on-dark-1));
  outline-offset: 4px;
}

.dot { color: var(--gold); }

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

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  padding: 12px 20px;
  background: var(--paper);
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
  transform: translateY(-200%);
}

.skip-link:focus { transform: none; }

/* 3. Layout ---------------------------------------------------------------- */

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  column-gap: var(--grid-gap);
}

.grid > * { grid-column: 1 / -1; }

.section { padding-block: var(--section-y); }

/* Dos secciones seguidas con el mismo fondo se leen como una sola:
   el espacio entre ellas sigue siendo --section-y. */
.theme-paper + .theme-paper { padding-top: 0; }

/* 4. Componentes ----------------------------------------------------------- */

/* Corte a 45°: una sola utilidad para todo el sitio */
.cut {
  --c: var(--cut-lg);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--c)), calc(100% - var(--c)) 100%, 0 100%);
}
.cut--xl   { --c: var(--cut-xl); }
.cut--sm   { --c: var(--cut-sm); }
.cut--hero { --c: var(--cut-hero); }

/* Títulos */
.display {
  font-size: var(--fs-display);
  line-height: var(--lh-tight);
  letter-spacing: var(--tracking-display);
}

.section-head { margin-bottom: clamp(48px, 6vw, 80px); }

.section-title {
  font-size: var(--fs-h2);
  line-height: var(--lh-tight);
  letter-spacing: var(--tracking-h2);
  margin-bottom: clamp(16px, 1.6vw, 24px);
}

.section-lead {
  font-size: var(--fs-lead);
  line-height: 1.5;
  color: var(--fg-2);
}

.h3 {
  font-size: var(--fs-h3);
  line-height: var(--lh-snug);
  letter-spacing: var(--tracking-h3);
}

/* Botón principal. El fondo vive en ::before para que el corte no
   recorte el anillo de foco, que se dibuja en ::after con la misma forma. */
.btn {
  --c: var(--cut-sm);
  position: relative;
  isolation: isolate;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 52px;
  padding: 0 28px;
  color: var(--btn-fg);
  font-size: var(--fs-body);
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
}

.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--btn-bg);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--c)), calc(100% - var(--c)) 100%, 0 100%);
  transition: opacity 200ms var(--ease);
}

/* Anillo de 3 px separado 2 px del botón; el corte crece 0,414 px por cada px de separación */
.btn::after {
  content: "";
  position: absolute;
  inset: -5px;
  z-index: -1;
  background: var(--ring);
  clip-path: polygon(evenodd,
    0 0, 100% 0, 100% calc(100% - var(--c) - 2.07px), calc(100% - var(--c) - 2.07px) 100%, 0 100%, 0 0,
    3px 3px, 3px calc(100% - 3px), calc(100% - 3px - var(--c) - 0.83px) calc(100% - 3px), calc(100% - 3px) calc(100% - 3px - var(--c) - 0.83px), calc(100% - 3px) 3px, 3px 3px);
  opacity: 0;
}

.btn:hover::before { opacity: .86; }
.btn:focus-visible { outline: none; }
.btn:focus-visible::after { opacity: 1; }

.btn--compact {
  height: 44px;
  padding: 0 20px;
}

/* Enlace secundario */
.link {
  color: var(--fg-1);
  font-weight: 700;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: .28em;
  transition: text-decoration-thickness 200ms var(--ease);
}

.link:hover { text-decoration-thickness: 2px; }

/* Etiqueta de frente (solo en casos) */
.tag {
  font-size: var(--fs-small);
  color: var(--fg-2);
}

/* Imagen con corte */
.media {
  background: var(--surface);
}

.media { align-self: start; }

.media img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* Panel con logo: ocupa el lugar de la imagen cuando un caso no tiene fotos */
.media--logo {
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 4 / 3;
  padding: clamp(24px, 3vw, 40px);
  background: var(--navy);
}

.case-grid .media.media--logo img {
  width: 72%;
  max-width: 320px;
  aspect-ratio: auto;
}

/* Lista con marcador en forma de corte (el isotipo en miniatura) */
.marks li {
  position: relative;
  padding-left: 22px;
}

.marks li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 9px;
  height: 9px;
  background: var(--fg-2);
  clip-path: polygon(0 0, 100% 0, 100% 55%, 55% 100%, 0 100%);
}

.marks li + li { margin-top: 10px; }

/* Aparición al hacer scroll: main.js agrega .is-visible. Sin JS o con
   "reducir movimiento", todo se ve desde el principio. */
@media (prefers-reduced-motion: no-preference) {
  .js [data-reveal] {
    opacity: 0;
    transform: translateY(32px);
    transition: opacity 700ms var(--ease) var(--reveal-delay, 0ms), transform 700ms var(--ease) var(--reveal-delay, 0ms);
  }

  .js [data-reveal].is-visible {
    opacity: 1;
    transform: none;
  }
}

/* 5. Secciones ------------------------------------------------------------- */

/* 5.0 Menú */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  transition: background-color var(--dur) var(--ease);
}

.site-header.is-scrolled,
.is-menu-open .site-header {
  background: rgba(11,18,30,.92);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: var(--header-h);
}

.brand { flex: none; }
.brand img { height: 36px; width: auto; }

.nav { display: none; }

.nav__list {
  display: flex;
  gap: clamp(20px, 2.2vw, 32px);
}

.nav__list a {
  color: var(--fg-2);
  font-size: var(--fs-small);
  text-decoration: none;
  transition: color 200ms var(--ease);
}

.nav__list a:hover { color: var(--fg-1); }

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.menu-toggle {
  position: relative;
  width: 44px;
  height: 44px;
}

.menu-toggle span {
  position: absolute;
  left: 11px;
  width: 22px;
  height: 2px;
  background: var(--fg-1);
  transition: transform 300ms var(--ease), opacity 200ms var(--ease);
}

.menu-toggle span:nth-child(1) { top: 15px; }
.menu-toggle span:nth-child(2) { top: 21px; }
.menu-toggle span:nth-child(3) { top: 27px; }

.menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 48px;
  padding: calc(var(--header-h) + 40px) var(--gutter) 48px;
  background: var(--ink);
  overflow-y: auto;
}

.mobile-nav[hidden] { display: none; }

.mobile-nav__list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.mobile-nav__list a {
  font-size: var(--fs-h2);
  font-weight: 700;
  line-height: var(--lh-tight);
  letter-spacing: var(--tracking-h2);
  text-decoration: none;
}

@media (max-width: 419px) {
  .header-actions .btn--compact { padding: 0 14px; }
}

@media (min-width: 960px) {
  .nav { display: block; }
  .menu-toggle,
  .mobile-nav { display: none; }
  .header-actions { gap: 0; }
}

/* 5.1 Hero: el bloque entero tiene la forma del isotipo y se recorta
   contra el fondo claro de la sección siguiente. */
.hero-shell { background: var(--paper); }

.hero {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: 88vh;
  min-height: 88svh;
  padding-top: calc(var(--header-h) + 48px);
  padding-bottom: clamp(72px, 10vw, 152px);
  overflow: hidden;
}

.hero__media {
  position: absolute;
  inset: 0;
}

.hero__media img,
.hero__media video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__media video {
  opacity: 0;
  transition: opacity 1s var(--ease);
}

.hero__media video.is-playing { opacity: 1; }

.hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(11,18,30,.78);
}

.hero__content { position: relative; }

.hero__lead {
  margin-top: clamp(20px, 2vw, 32px);
  font-size: var(--fs-lead);
  line-height: 1.5;
  color: var(--fg-2);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px 32px;
  margin-top: clamp(32px, 4vw, 48px);
}

.hero__note {
  margin-top: 14px;
  font-size: var(--fs-micro);
  color: var(--fg-2);
}

.clients {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 28px;
  margin-top: clamp(48px, 7vw, 96px);
}

/* Cada logo trae su alto en --logo-h, compensado para que pesen parecido */
.clients img {
  height: var(--logo-h, 20px);
  width: auto;
  opacity: .6;
}

@media (prefers-reduced-motion: no-preference) {
  .hero [data-enter] { animation: hero-enter 360ms var(--ease) both; }
  .hero [data-enter="2"] { animation-delay: 120ms; }
  .hero [data-enter="3"] { animation-delay: 240ms; }
}

@keyframes hero-enter {
  from { opacity: 0; transform: translateY(16px); }
}

@media (min-width: 900px) {
  .hero__title { grid-column: 1 / span 9; }
  .hero__lead { grid-column: 1 / span 6; }
}

/* Desktop: el hero ocupa la pantalla entera y el contenido queda centrado
   en vertical (el mismo espacio arriba y abajo, contando el menú). */
@media (min-width: 1024px) {
  .hero {
    align-items: center;
    min-height: 100vh;
    min-height: 100svh;
    padding-block: var(--header-h);
  }
}

/* 5.2 Soluciones: dos bloques oscuros con corte, uno debajo del otro.
   Título grande, los tres problemas en tres columnas y, en un panel,
   de qué nos encargamos (etiqueta a la izquierda, lista en dos columnas). */
.services {
  display: grid;
  gap: var(--grid-gap);
}

.service {
  display: flex;
  flex-direction: column;
  padding: clamp(28px, 5vw, 72px);
}

.service__title {
  font-size: var(--fs-title);
  line-height: 1.08;
  letter-spacing: var(--tracking-h2);
}

.service__pains {
  display: grid;
  gap: 28px;
  margin-top: clamp(32px, 4vw, 56px);
}

.service__pains li {
  padding-top: 20px;
  border-top: 1px solid rgba(248,249,250,.24);
  font-size: var(--fs-lead);
  line-height: 1.4;
  color: var(--fg-1);
}

.service__solution {
  margin-top: clamp(40px, 5vw, 64px);
  padding: clamp(24px, 3vw, 40px);
  background: rgba(248,249,250,.06);
}

.service__solution h4 {
  margin-bottom: 20px;
  font-size: var(--fs-h3);
  line-height: var(--lh-snug);
  letter-spacing: var(--tracking-h3);
}

.service__solution li { color: var(--fg-2); }

.service__cta {
  margin-top: auto;
  padding-top: clamp(32px, 4vw, 48px);
}

@media (min-width: 768px) {
  .service__pains {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    column-gap: clamp(24px, 3vw, 48px);
  }

  /* Dos columnas que se llenan de arriba hacia abajo: sin huecos entre ítems */
  .service__solution .marks {
    columns: 2;
    column-gap: clamp(24px, 3vw, 48px);
  }

  .service__solution .marks li {
    break-inside: avoid;
    margin: 0 0 12px;
  }
}

@media (min-width: 1024px) {
  .service__solution {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: var(--grid-gap);
  }

  .service__solution h4 { grid-column: 1 / span 4; margin-bottom: 0; }
  .service__solution .marks { grid-column: 5 / -1; }
}

/* 5.3 Casos */
.case__tag { margin-bottom: 8px; }
.case__name { margin-bottom: 20px; }

.case__facts dt {
  font-size: var(--fs-small);
  color: var(--fg-2);
}

.case__facts dd {
  max-width: var(--measure);
  color: var(--fg-2);
}

.case__facts dd + dt { margin-top: 14px; }

.case__facts .case__result {
  color: var(--fg-1);
  font-weight: 700;
}

.case-featured {
  row-gap: 32px;
  align-items: center;
}

.case-featured .media img { aspect-ratio: 3 / 2; }

.case-grid {
  display: grid;
  gap: 56px var(--grid-gap);
  margin-top: clamp(64px, 8vw, 120px);
}

.case-grid .media img { aspect-ratio: 4 / 3; }

.case-grid .case { row-gap: 24px; }

@media (min-width: 640px) and (max-width: 1023px) {
  .case-grid .case .media { grid-column: 1 / span 5; }
  .case-grid .case .case__text-wrap { grid-column: 6 / -1; }
}

@media (min-width: 900px) {
  .case-featured .media { grid-column: 1 / span 7; }
  .case-featured .case__text-wrap { grid-column: 8 / -1; }
}

@media (min-width: 1024px) {
  .case-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .case-grid .case { display: flex; flex-direction: column; }
}

/* 5.4 Método */
.steps {
  display: grid;
  gap: 48px var(--grid-gap);
}

.step__num {
  display: block;
  margin-bottom: 20px;
  font-size: var(--fs-h2);
  font-weight: 700;
  line-height: var(--lh-tight);
  letter-spacing: var(--tracking-h2);
  color: var(--fg-3);
}

.step__title { margin-bottom: 12px; }
.step p { color: var(--fg-2); }

@media (min-width: 640px) {
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 1024px) {
  .steps { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

/* Método interactivo (main.js agrega .is-interactive): pestañas con una
   línea de avance arriba y una sola fase visible por vez. */
.method__tabs {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  column-gap: var(--grid-gap);
}

.method__tabs[hidden],
.method__nav[hidden] { display: none; }

.method__track {
  position: absolute;
  inset: 0 0 auto;
  height: 2px;
  background: rgba(248,249,250,.16);
}

.method__progress {
  display: block;
  width: var(--progress, 25%);
  height: 100%;
  background: var(--fg-1);
  transition: width var(--dur) var(--ease);
}

.method__tab {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-height: 44px;
  padding-top: 20px;
  color: var(--fg-2);
  text-align: left;
  transition: color 200ms var(--ease);
}

.method__tab:hover,
.method__tab[aria-selected="true"] { color: var(--fg-1); }

.method__tab-num {
  font-size: var(--fs-h3);
  font-weight: 700;
  line-height: 1;
  color: var(--fg-3);
}

.method__tab[aria-selected="true"] .method__tab-num { color: var(--fg-1); }
.method__tab[aria-selected="true"] .method__tab-name { font-weight: 700; }

.method__tab-name {
  font-size: var(--fs-small);
  line-height: 1.35;
}

/* En mobile solo se ven los números; el nombre queda para lectores de pantalla */
@media (max-width: 639px) {
  .method__tab-name {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
  }
}

.method.is-interactive .steps {
  display: block;
  margin-top: clamp(40px, 5vw, 72px);
}

.method.is-interactive .step[hidden] { display: none; }

.method.is-interactive .step__num {
  margin-bottom: 16px;
  font-size: var(--fs-display);
  line-height: 1;
  letter-spacing: var(--tracking-display);
}

.method.is-interactive .step p {
  font-size: var(--fs-lead);
  line-height: 1.5;
}

.method__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 32px;
  margin-top: clamp(32px, 4vw, 48px);
}

.method__btn {
  min-height: 44px;
}

.method__btn:disabled {
  color: var(--fg-3);
  text-decoration-color: transparent;
  cursor: default;
}

@media (prefers-reduced-motion: no-preference) {
  .step.is-entering { animation: step-in 480ms var(--ease) both; }
}

@keyframes step-in {
  from { opacity: 0; transform: translateX(calc(var(--dir, 1) * 32px)); }
}

@media (min-width: 900px) {
  .method.is-interactive .step {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: var(--grid-gap);
    align-items: end;
  }

  .method.is-interactive .step__num { grid-column: 1 / span 3; grid-row: 1 / span 2; margin-bottom: 0; }
  .method.is-interactive .step__title { grid-column: 4 / -1; }
  .method.is-interactive .step p { grid-column: 4 / span 7; }
  .method__nav { padding-left: calc((100% + var(--grid-gap)) / 12 * 3); }
}

/* 5.5 Nosotros */
.about { row-gap: 64px; }

.about__text p { color: var(--fg-2); }
.about__text p + p { margin-top: 20px; }

.person { max-width: 440px; }

.person .media { aspect-ratio: 4 / 5; }

.person .media img {
  height: 100%;
  object-fit: cover;
}

.person__name { margin-top: 28px; }
.person__role { color: var(--fg-2); }

.person__creds {
  margin-top: 20px;
  color: var(--fg-2);
}

.person__creds li + li { margin-top: 8px; }

@media (min-width: 900px) {
  .about__text { grid-column: 1 / span 6; }
  .person { grid-column: 8 / -1; }
}

/* 5.6 Preguntas frecuentes */
.faq { row-gap: clamp(24px, 4vw, 40px); }

.faq__item + .faq__item { margin-top: 28px; }

.faq__q {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  width: 100%;
  font-size: var(--fs-h3);
  font-weight: 700;
  line-height: var(--lh-snug);
  letter-spacing: var(--tracking-h3);
  text-align: left;
}

.faq__icon {
  position: relative;
  flex: none;
  width: 20px;
  height: 20px;
  margin-top: .15em;
  transition: transform 300ms var(--ease);
}

.faq__icon::before,
.faq__icon::after {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 20px;
  height: 2px;
  background: currentColor;
}

.faq__icon::after { transform: rotate(90deg); }

.faq__q[aria-expanded="true"] .faq__icon { transform: rotate(45deg); }

.faq__a {
  display: grid;
  grid-template-rows: 0fr;
  visibility: hidden;
  transition: grid-template-rows 300ms var(--ease), visibility 0s 300ms;
}

.faq__a > div { overflow: hidden; }

.faq__a p {
  padding-top: 12px;
  color: var(--fg-2);
}

.faq__item.is-open .faq__a {
  grid-template-rows: 1fr;
  visibility: visible;
  transition: grid-template-rows 300ms var(--ease), visibility 0s;
}

@media (min-width: 900px) {
  .faq__head { grid-column: 1 / span 5; }
  .faq__list { grid-column: 6 / -1; }
}

/* 5.7 Contacto */
.contact .section-title { margin-bottom: clamp(16px, 1.6vw, 24px); }

.contact__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px 32px;
  margin-top: clamp(32px, 4vw, 48px);
}

@media (min-width: 900px) {
  .contact__body { grid-column: 1 / span 8; }
}

/* 5.8 Footer */
.site-footer {
  padding-block: clamp(48px, 6vw, 80px) 40px;
}

.site-footer__top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

.site-footer__logo { height: 32px; width: auto; }

.site-footer__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
}

.site-footer a {
  color: var(--fg-2);
  font-size: var(--fs-small);
  text-decoration: none;
  transition: color 200ms var(--ease);
}

.site-footer a:hover { color: var(--fg-1); }

.site-footer__contact {
  display: flex;
  align-items: center;
  gap: 20px;
}

.social svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.site-footer__legal {
  margin-top: clamp(40px, 5vw, 64px);
  font-size: var(--fs-small);
  color: var(--fg-3);
}

/* Movimiento reducido: nada se anima */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
}