/* ==========================================================================
   LUVERA MEDIA — Sistema "Plano y Obra"
   Estático puro. Sin build, sin dependencias.
   ========================================================================== */

/* ----- Fuentes autoalojadas ------------------------------------------- */
@font-face {
  font-family: 'Archivo';
  src: url('../assets/fonts/archivo-var.woff2') format('woff2-variations');
  font-weight: 100 900;
  font-stretch: 62% 125%;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Inter Tight';
  src: url('../assets/fonts/inter-tight-var.woff2') format('woff2-variations');
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Martian Mono';
  src: url('../assets/fonts/martian-mono-var.woff2') format('woff2-variations');
  font-weight: 100 800;
  font-stretch: 75% 112%;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Instrument Serif';
  src: url('../assets/fonts/instrument-serif-italic.woff2') format('woff2');
  font-weight: 400;
  font-style: italic;
  font-display: swap;
}

/* ----- Tokens ---------------------------------------------------------- */
:root {
  --tinta:      #10161C;
  --tinta-alta: #161E27;
  --yeso:       #E4E1DA;
  --cal:        #F7F6F3;
  --cian:       #1F4E8C;
  --cian-luz:   #5B8FD6;
  --grafito:    #828C96;
  --sepia:      #7C6A57;
  --verdegris:  #4A6B6F;

  --linea-osc:  rgba(247, 246, 243, .14);
  --linea-cla:  rgba(16, 22, 28, .14);

  --f-display: 'Archivo', 'Helvetica Neue', Arial, sans-serif;
  --f-cuerpo:  'Inter Tight', 'Helvetica Neue', Arial, sans-serif;
  --f-mono:    'Martian Mono', ui-monospace, 'SF Mono', Menlo, monospace;
  --f-serif:   'Instrument Serif', Georgia, serif;

  --margen:    clamp(1.25rem, 6vw, 7rem);
  --margen-d:  clamp(1.25rem, 3vw, 4rem);
  --cota:      clamp(3.5rem, 7vw, 6.5rem);
  --seccion:   clamp(3.75rem, 6.6vw, 6.25rem);
  --ease:      cubic-bezier(.22, 1, .36, 1);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--tinta);
  color: var(--cal);
  font-family: var(--f-cuerpo);
  font-size: clamp(1rem, .95rem + .25vw, 1.1875rem);
  line-height: 1.55;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, svg { max-width: 100%; display: block; }
a { color: inherit; }

::selection { background: var(--cian-luz); color: var(--tinta); }

:focus-visible {
  outline: 2px solid var(--cian-luz);
  outline-offset: 3px;
}

.saltar {
  position: absolute; left: -9999px; top: 0;
  background: var(--cal); color: var(--tinta);
  padding: .75rem 1.25rem; z-index: 200;
  font-family: var(--f-mono); font-size: .6875rem;
}
.saltar:focus { left: 0; }

/* ----- Tipografía ------------------------------------------------------ */
.display {
  font-family: var(--f-display);
  font-weight: 600;
  font-stretch: 112%;
  letter-spacing: -.03em;
  line-height: .93;
  margin: 0;
  text-wrap: balance;
}

.d-xl { font-size: clamp(2rem, 5.4vw, 5.2rem); }
.d-l  { font-size: clamp(1.85rem, 4.1vw, 3.75rem); }
.d-m  { font-size: clamp(1.5rem, 2.6vw, 2.35rem); font-stretch: 105%; letter-spacing: -.02em; }

.mono {
  font-family: var(--f-mono);
  font-size: .6875rem;
  font-weight: 400;
  font-stretch: 100%;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--grafito);
  line-height: 1.6;
}

.medida { max-width: 34em; }
.medida-corta { max-width: 26em; }

.serif-cita {
  font-family: var(--f-serif);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(2.1rem, 5.6vw, 4.6rem);
  line-height: 1.05;
  letter-spacing: -.01em;
  color: var(--cal);
  margin: 0;
}

.sombra-suave { color: var(--grafito); }

/* ----- Enlaces con subrayado dibujado ---------------------------------- */
.enlace {
  text-decoration: none;
  position: relative;
  display: inline-block;
  padding-bottom: 2px;
}
.enlace::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: var(--cian-luz);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .45s var(--ease);
}
.enlace:hover::after,
.enlace:focus-visible::after { transform: scaleX(1); }

/* ----- Botones --------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .75rem;
  font-family: var(--f-mono);
  font-size: .6875rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 1.15rem 1.75rem;
  border: 1px solid var(--linea-osc);
  background: transparent;
  color: var(--cal);
  cursor: pointer;
  transition: background .4s var(--ease), color .4s var(--ease), border-color .4s var(--ease);
}
.btn:hover { background: var(--cal); color: var(--tinta); border-color: var(--cal); }

.btn--solido { background: var(--cian); border-color: var(--cian); color: var(--cal); }
.btn--solido:hover { background: var(--cian-luz); border-color: var(--cian-luz); color: var(--tinta); }

.btn--claro { border-color: var(--linea-cla); color: var(--tinta); }
.btn--claro:hover { background: var(--tinta); color: var(--cal); border-color: var(--tinta); }

/* ----- Layout ---------------------------------------------------------- */
.envoltura {
  padding-left: var(--margen);
  padding-right: var(--margen-d);
  max-width: 1680px;
  margin: 0 auto;
}

.seccion { padding-block: var(--seccion); position: relative; }

.claro { background: var(--yeso); color: var(--tinta); }
.claro .mono { color: rgba(16, 22, 28, .5); }
.claro .sombra-suave { color: rgba(16, 22, 28, .62); }
.claro .enlace::after { background: var(--cian); }

/* ----- Cota (elemento firma) ------------------------------------------- */
.cota {
  display: flex;
  align-items: center;
  gap: .9rem;
  font-family: var(--f-mono);
  font-size: .625rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--grafito);
}
.cota > span { white-space: nowrap; }
@media (max-width: 560px) {
  .cota { font-size: .5625rem; letter-spacing: .1em; gap: .6rem; }
  .cota::before, .cota::after { min-width: 1.25rem; }
}
.cota::before,
.cota::after {
  content: '';
  height: 7px;
  border-left: 1px solid currentColor;
  border-right: 1px solid currentColor;
  flex: 1 1 auto;
  min-width: 2.5rem;
  background: linear-gradient(currentColor, currentColor) left center / 100% 1px no-repeat;
  opacity: .55;
}
.cota--izq::before { display: none; }
.claro .cota { color: rgba(16, 22, 28, .5); }


/* ----- Lámina: tratamiento único de imagen ------------------------------- */
.lamina {
  position: relative;
  overflow: hidden;
  margin: 0;
  border: 1px solid var(--linea-osc);
  background: var(--tinta-alta);
}
.lamina img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.9) contrast(1.03);
  transition: transform 1.4s var(--ease), filter 1.4s var(--ease);
}
.lamina::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(16,22,28,0) 46%, rgba(16,22,28,.82) 100%);
  pointer-events: none;
}
.lamina:hover img { transform: scale(1.04); filter: saturate(1) contrast(1.03); }

.lamina--retrato { aspect-ratio: 4 / 5; }
.lamina--pano    { aspect-ratio: 16 / 10; }

.lamina__etiqueta {
  position: absolute;
  left: 0; bottom: 0;
  z-index: 2;
  padding: 1rem 1.15rem;
  color: rgba(247,246,243,.72);
  letter-spacing: .16em;
}
/* Variante para las secciones de fondo claro */
.lamina--clara { border-color: var(--linea-cla); background: #d7d3cb; }
.lamina--clara::after { background: linear-gradient(180deg, rgba(16,22,28,0) 48%, rgba(16,22,28,.78) 100%); }

/* ----- Hero: la materia debajo, el plano encima -------------------------- */
.hero__material {
  position: absolute;
  right: -4%; top: 50%;
  transform: translateY(-50%);
  width: min(56vw, 900px);
  z-index: 0;
  mask-image: linear-gradient(90deg, transparent 0%, #000 42%), linear-gradient(180deg, transparent 0%, #000 14%, #000 82%, transparent 100%);
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 42%), linear-gradient(180deg, transparent 0%, #000 14%, #000 82%, transparent 100%);
  mask-composite: intersect;
  -webkit-mask-composite: source-in;
  opacity: 0;
  animation: entra 1.6s var(--ease) .2s forwards;
}
.hero__material img { width: 100%; height: auto; display: block; }

/* ----- Banda de material (transición oscuro → claro) --------------------- */
.banda {
  position: relative;
  height: clamp(9rem, 22vw, 17rem);
  overflow: hidden;
  border-block: 1px solid var(--linea-osc);
}
.banda img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center 42%;
  filter: saturate(.75) contrast(1.05);
}
.banda::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(16,22,28,.94) 0%, rgba(16,22,28,.6) 28%, rgba(16,22,28,.05) 60%, rgba(16,22,28,.55) 100%);
}
.banda__texto {
  position: absolute;
  left: var(--margen); top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  margin: 0;
  color: rgba(247,246,243,.86);
  letter-spacing: .3em;
}
@media (max-width: 560px) {
  .banda__texto { font-size: .5625rem; letter-spacing: .2em; }
}

/* ----- Textura de fondo de sección --------------------------------------- */
.seccion--textura { position: relative; isolation: isolate; }
.seccion__textura {
  position: absolute;
  inset: 0;
  z-index: -1;
  background: url('../assets/img/textura-oscura-1600.webp') center / cover no-repeat;
  opacity: .34;
  mask-image: linear-gradient(180deg, transparent 0%, #000 22%, #000 66%, transparent 100%);
  -webkit-mask-image: linear-gradient(180deg, transparent 0%, #000 22%, #000 70%, transparent 100%);
}

/* ----- Marginalia fija -------------------------------------------------- */
.marginalia {
  position: fixed;
  left: 0; top: 0;
  height: 100vh;
  width: var(--cota);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 40;
  pointer-events: none;
  border-right: 1px solid var(--linea-osc);
  transition: border-color .6s var(--ease);
}
.marginalia__texto {
  font-family: var(--f-mono);
  font-size: .625rem;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--grafito);
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  transition: color .5s var(--ease), opacity .35s var(--ease);
}
.marginalia__barra {
  position: absolute;
  right: -1px; top: 0;
  width: 1px;
  height: 0;
  background: var(--cian-luz);
  transition: height .1s linear;
}
body.en-claro .marginalia { border-right-color: var(--linea-cla); }
body.en-claro .marginalia__texto { color: rgba(16, 22, 28, .5); }
body.en-claro .marginalia__barra { background: var(--cian); }

@media (min-width: 1024px) {
  .marginalia { display: flex; }
  :root { --margen: calc(var(--cota) + clamp(1.75rem, 3vw, 4rem)); }
}

/* ----- Encabezado ------------------------------------------------------- */
.encabezado {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1.15rem var(--margen-d) 1.15rem var(--margen);
  background: rgba(16, 22, 28, .72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: background .5s var(--ease), border-color .5s var(--ease), color .5s var(--ease);
}
.encabezado--fondo { border-bottom-color: var(--linea-osc); }
body.en-claro .encabezado {
  background: rgba(228, 225, 218, .78);
  color: var(--tinta);
  border-bottom-color: var(--linea-cla);
}

.marca {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  font-family: var(--f-display);
  font-weight: 600;
  font-stretch: 112%;
  letter-spacing: .01em;
  font-size: .9rem;
  text-transform: uppercase;
  text-decoration: none;
  color: inherit;
}
.marca span { color: var(--grafito); font-weight: 400; }
.marca__iso {
  width: auto;
  height: 1.55em;
  display: block;
  flex: 0 0 auto;
}
.pie__marca { display: grid; gap: 1.25rem; justify-items: start; }
.pie__lockup { height: clamp(4.75rem, 7vw, 6.5rem); width: auto; display: block; }

.nav { display: none; gap: 2.1rem; align-items: center; }
.nav a {
  font-family: var(--f-mono);
  font-size: .625rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  text-decoration: none;
  color: inherit;
  opacity: .78;
  transition: opacity .3s var(--ease);
}
.nav a:hover { opacity: 1; }

.encabezado .btn { padding: .85rem 1.25rem; }
@media (max-width: 480px) {
  .encabezado .btn { padding: .8rem 1rem; font-size: .5625rem; letter-spacing: .1em; }
  .marca { font-size: .8125rem; }
}
body.en-claro .encabezado .btn--solido { color: var(--cal); }

@media (min-width: 960px) {
  .nav { display: flex; }
}

/* ----- Hero ------------------------------------------------------------- */
.hero {
  min-height: min(86svh, 54rem);   /* tope: en pantallas altas no se estira de más */
  display: flex;
  align-items: center;          /* centrado óptico: se acabó el vacío superior */
  padding-top: clamp(6rem, 10vh, 7.5rem);
  padding-bottom: clamp(2.25rem, 5vh, 3.75rem);
  position: relative;
  overflow: hidden;
}

.hero__reticula {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--linea-osc) 1px, transparent 1px),
    linear-gradient(90deg, var(--linea-osc) 1px, transparent 1px);
  background-size: 7.5rem 7.5rem;
  opacity: 0;
  mask-image: radial-gradient(ellipse 80% 70% at 70% 40%, #000 20%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 70% 40%, #000 20%, transparent 78%);
  animation: aparece-reticula 2.4s var(--ease) .3s forwards;
}
@keyframes aparece-reticula { to { opacity: .5; } }

.hero__plano {
  position: absolute;
  right: -6%;
  top: 46%;
  transform: translateY(-50%);
  width: min(42vw, 560px);
  opacity: .55;
  pointer-events: none;
  mask-image: linear-gradient(90deg, transparent 0%, #000 34%);
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 34%);
}
.hero__plano .trazo {
  fill: none;
  stroke: var(--cian-luz);
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
  stroke-dasharray: 2400;
  stroke-dashoffset: 2400;
  animation: dibuja 3.2s var(--ease) .6s forwards;
}
.hero__plano .trazo--b { animation-delay: 1.1s; }
.hero__plano .trazo--c { animation-delay: 1.5s; stroke: var(--grafito); }
.hero__plano .relleno {
  fill: var(--cian);
  opacity: 0;
  animation: aparece-relleno 1.6s var(--ease) 2.4s forwards;
}
@keyframes dibuja { to { stroke-dashoffset: 0; } }

/* En móvil la materia se convierte en una lámina superior y el texto va debajo */
@media (max-width: 899px) {
  .hero {
    min-height: 0;
    align-items: flex-start;
    padding-top: calc(38svh + 2.5rem);
    padding-bottom: clamp(3rem, 9vw, 4.5rem);
  }
  .hero__material {
    top: 0; right: 0; left: 0;
    width: 100%;
    height: 38svh;
    transform: none;
    mask-image: linear-gradient(180deg, #000 52%, transparent 100%);
    -webkit-mask-image: linear-gradient(180deg, #000 52%, transparent 100%);
    mask-composite: add;
    -webkit-mask-composite: source-over;
  }
  .hero__material img { height: 100%; object-fit: cover; object-position: 62% 50%; }
  .hero__plano { display: none; }
  .hero__reticula {
    mask-image: linear-gradient(180deg, transparent 0%, #000 42%, #000 88%, transparent 100%);
    -webkit-mask-image: linear-gradient(180deg, transparent 0%, #000 42%, #000 88%, transparent 100%);
  }
}
@keyframes aparece-relleno { to { opacity: .16; } }

.hero__contenido { position: relative; z-index: 2; width: 100%; margin-inline: 0; }
.hero__titular { max-width: 22ch; }

.hero__titular { margin-block: 1.5rem 2rem; }
.hero__titular .linea { display: block; overflow: hidden; }
.hero__titular .linea > span {
  display: block;
  transform: translateY(105%);
  animation: sube-linea .95s var(--ease) forwards;
}
.hero__titular .linea:nth-child(1) > span { animation-delay: .15s; }
.hero__titular .linea:nth-child(2) > span { animation-delay: .26s; }
.hero__titular .linea:nth-child(3) > span { animation-delay: .37s; }
@keyframes sube-linea { to { transform: translateY(0); } }

.hero__titular em {
  font-style: normal;
  color: var(--cian-luz);
}

.hero__bajada {
  color: var(--grafito);
  max-width: 40rem;
  opacity: 0;
  animation: entra .9s var(--ease) .55s forwards;
}
.hero__acciones {
  display: flex;
  flex-wrap: wrap;
  gap: .9rem;
  margin-top: 2.5rem;
  opacity: 0;
  animation: entra .9s var(--ease) .75s forwards;
}
.hero__cota {
  margin-top: clamp(2.5rem, 6vw, 4.5rem);
  max-width: 30rem;
  opacity: 0;
  animation: entra .9s var(--ease) .95s forwards;
}
.hero__eyebrow { opacity: 0; animation: entra .8s var(--ease) .1s forwards; }
@keyframes entra { to { opacity: 1; } }

/* ----- Manifiesto -------------------------------------------------------- */
.manifiesto__cita {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}
.manifiesto__texto { color: var(--grafito); }
.manifiesto__lamina { margin-top: 2rem; }
@media (min-width: 760px) { .manifiesto__lamina { margin-top: 3rem; max-width: 30rem; } }

.criterios {
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--linea-osc);
  margin-top: clamp(2.5rem, 5.5vw, 4.25rem);
}
.criterio {
  padding: 2.25rem 0;
  border-bottom: 1px solid var(--linea-osc);
}
.criterio h3 {
  font-family: var(--f-display);
  font-weight: 600;
  font-stretch: 108%;
  font-size: 1.0625rem;
  letter-spacing: -.01em;
  margin: .6rem 0 .7rem;
}
.criterio p { margin: 0; color: var(--grafito); font-size: .95rem; }
.criterio .num { color: var(--cian-luz); }

@media (min-width: 760px) {
  .manifiesto__cita { grid-template-columns: 1fr 1.15fr; gap: 4rem; }
  .criterios { grid-template-columns: repeat(2, 1fr); column-gap: 3.5rem; }
}
@media (min-width: 1200px) {
  .criterios { grid-template-columns: repeat(4, 1fr); column-gap: 3rem; }
  .criterio { border-bottom: none; }
}

/* ----- Servicios --------------------------------------------------------- */
.servicios__cab {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  padding-bottom: clamp(2rem, 5vw, 3.5rem);
}
@media (min-width: 900px) {
  .servicios__cab { grid-template-columns: 1fr 1fr; align-items: end; gap: 4rem; }
}

.servicio {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.25rem;
  padding-block: clamp(3rem, 7vw, 5.5rem);
  border-top: 1px solid var(--linea-osc);
}
.servicio:first-of-type { padding-top: clamp(1.75rem, 3.5vw, 2.75rem); }
.servicio__titulo { margin: 0 0 1.5rem; }
.servicio__desc { color: var(--grafito); margin-bottom: 1.75rem; }
.servicio__cota { margin-bottom: 2.5rem; max-width: 26rem; }

/* ----- Índice desplegable de cada servicio ------------------------------- */
.indice__pista {
  margin: 0 0 1rem;
  color: rgba(130, 140, 150, .8);
}

.servicios__pista { margin: 1.25rem 0 0; color: var(--cian-luz); }
.servicios__pista::before {
  content: '';
  display: inline-block;
  width: 16px; height: 1px;
  background: currentColor;
  margin-right: .7rem;
  vertical-align: middle;
}

/* ----- Índice desplegable ------------------------------------------------ */
.indice { list-style: none; margin: 0; padding: 0; }
.indice__item { border-bottom: 1px solid var(--linea-osc); }
.indice__item:first-child { border-top: 1px solid var(--linea-osc); }

.indice__cab {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 1.35rem;
  padding: 1.15rem 0;
  background: none;
  border: 0;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
  transition: padding-left .45s var(--ease);
}
.indice__cab:hover { padding-left: .85rem; }
.indice__cab .n {
  font-family: var(--f-mono);
  font-size: .625rem;
  letter-spacing: .12em;
  color: var(--cian-luz);
  flex: 0 0 auto;
}
.indice__t {
  flex: 1 1 auto;
  font-size: 1.0625rem;
  line-height: 1.35;
}

.indice__signo {
  flex: 0 0 auto;
  position: relative;
  width: 15px; height: 15px;
}
.indice__signo::before,
.indice__signo::after {
  content: '';
  position: absolute;
  background: var(--grafito);
  transition: transform .45s var(--ease), opacity .45s var(--ease), background .45s var(--ease);
}
.indice__signo::before { left: 0; top: 7px; width: 15px; height: 1px; }
.indice__signo::after  { left: 7px; top: 0; width: 1px; height: 15px; }
.indice__cab:hover .indice__signo::before,
.indice__cab:hover .indice__signo::after { background: var(--cian-luz); }
.indice__cab[aria-expanded="true"] .indice__signo::after { transform: rotate(90deg); opacity: 0; }
.indice__cab[aria-expanded="true"] .indice__signo::before { background: var(--cian-luz); }

.indice__cuerpo {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows .5s var(--ease);
}
.indice__cuerpo > div { overflow: hidden; }
.indice__cab[aria-expanded="true"] + .indice__cuerpo { grid-template-rows: 1fr; }

.indice__detalle {
  padding: .1rem 2.5rem 1.9rem 3.1rem;
  border-left: 1px solid var(--linea-osc);
  margin-left: .1rem;
}
.indice__detalle p {
  margin: 0 0 1.25rem;
  color: var(--grafito);
  font-size: .9375rem;
  line-height: 1.6;
  max-width: 44em;
}
.indice__tags { display: flex; flex-wrap: wrap; gap: .45rem; }
.indice__tags span {
  font-family: var(--f-mono);
  font-size: .5625rem;
  letter-spacing: .13em;
  text-transform: uppercase;
  padding: .48rem .75rem;
  border: 1px solid var(--linea-osc);
  color: var(--grafito);
}

@media (max-width: 560px) {
  .indice__detalle { padding-left: 1.5rem; padding-right: 0; }
  .indice__cab { gap: 1rem; }
}

@media (min-width: 900px) {
  .servicio { grid-template-columns: 4fr 7fr; gap: clamp(2.5rem, 5vw, 5rem); align-items: start; }
  .servicio--desfase { grid-template-columns: 7fr 4fr; }
  .servicio--desfase .servicio__col-lamina { order: 2; }
  .servicio--desfase .servicio__col-texto  { order: 1; }
  .servicio__col-texto { padding-top: .5rem; }
  .servicio--desfase .servicio__col-texto { padding-top: clamp(1.5rem, 4vw, 4rem); }
  .servicio__sticky { position: sticky; top: 7.5rem; }
  .servicio__col-texto { min-width: 0; }
}

/* ----- Metodología ------------------------------------------------------- */
.metodo__cab { display: grid; grid-template-columns: 1fr; gap: 2rem; align-items: end; margin-bottom: clamp(2.25rem, 5vw, 3.75rem); }
@media (min-width: 900px) { .metodo__cab { grid-template-columns: 1.2fr 1fr; gap: 4rem; } }

.escalera { position: relative; }

/* Variante sobre fondo claro */
.claro .fase { border-left-color: var(--linea-cla); }
.claro .fase:last-child { border-left-color: transparent; }
.claro .fase.es-visible { border-left-color: rgba(31, 78, 140, .38); }
.claro .fase::before { background: var(--yeso); border-color: rgba(16, 22, 28, .35); }
.claro .fase.es-visible::before { background: var(--cian); border-color: var(--cian); }
.claro .fase::after { background: var(--linea-cla); }
.claro .fase__d { color: rgba(16, 22, 28, .68); }

.fase {
  position: relative;
  padding-left: 2.25rem;
  padding-bottom: clamp(2.5rem, 5vw, 3.75rem);
  border-left: 1px solid var(--linea-osc);
  transition: border-left-color .7s var(--ease);
}
.fase:last-child { border-left-color: transparent; }
.fase.es-visible { border-left-color: rgba(91, 143, 214, .45); }
.fase.es-visible:last-child { border-left-color: transparent; }
.fase::before {
  content: '';
  position: absolute;
  left: -4px; top: .45rem;
  width: 7px; height: 7px;
  background: var(--tinta);
  border: 1px solid var(--grafito);
  transition: background .5s var(--ease), border-color .5s var(--ease);
}
.fase.es-visible::before { background: var(--cian-luz); border-color: var(--cian-luz); }
/* tramo horizontal que une un escalón con el siguiente */
.fase::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  height: 1px;
  width: 0;
  background: var(--linea-osc);
}
@media (min-width: 900px) {
  .fase:not(:last-child)::after { width: 4vw; max-width: 4rem; }
}
.fase__n { display: block; margin-bottom: .5rem; }
.fase__t {
  font-family: var(--f-display);
  font-weight: 600;
  font-stretch: 110%;
  font-size: clamp(1.35rem, 2.8vw, 2.15rem);
  letter-spacing: -.02em;
  margin: 0 0 .75rem;
}
.fase__d { margin: 0; color: var(--grafito); max-width: 44rem; }

@media (min-width: 900px) {
  .fase { padding-left: 3.5rem; }
  .fase:nth-child(1) { margin-left: 0; }
  .fase:nth-child(2) { margin-left: 4%; }
  .fase:nth-child(3) { margin-left: 8%; }
  .fase:nth-child(4) { margin-left: 12%; }
  .fase:nth-child(5) { margin-left: 16%; }
}

/* ----- Contacto ---------------------------------------------------------- */
.contacto { border-top: 1px solid var(--linea-osc); }

/* La banda de material no necesita el aire completo a los lados */
#manifiesto { padding-top: calc(var(--seccion) * .6); }
#servicios  { padding-bottom: calc(var(--seccion) * .5); }
#metodo     { padding-top: calc(var(--seccion) * .8); }
.contacto__grid { display: grid; grid-template-columns: 1fr; gap: 3.5rem; align-items: start; }
@media (min-width: 980px) {
  .contacto__grid { grid-template-columns: 1fr 1fr; gap: clamp(3rem, 7vw, 7rem); }
}

.contacto__directo { margin-top: 2.5rem; display: grid; gap: .75rem; }
.contacto__directo a { text-decoration: none; font-size: 1.0625rem; }

.formulario { display: grid; gap: 1.75rem; align-content: start; }
.campo { display: grid; gap: .6rem; align-content: start; }
.campo label { font-family: var(--f-mono); font-size: .625rem; letter-spacing: .14em; text-transform: uppercase; color: var(--grafito); }
.campo input,
.campo select,
.campo textarea {
  font-family: var(--f-cuerpo);
  font-size: 1rem;
  color: var(--cal);
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--linea-osc);
  border-radius: 0;
  padding: .85rem 0;
  transition: border-color .4s var(--ease);
  width: 100%;
}
.campo textarea { resize: vertical; min-height: 7rem; }
.campo input:focus,
.campo select:focus,
.campo textarea:focus {
  outline: none;
  border-bottom-color: var(--cian-luz);
}
.campo select { appearance: none; -webkit-appearance: none; cursor: pointer; }
.campo select option { background: var(--tinta); color: var(--cal); }
.campo--sel { position: relative; }
.campo--sel::after {
  content: '';
  position: absolute;
  right: 4px; bottom: 1.55rem;
  width: 7px; height: 7px;
  border-right: 1px solid var(--grafito);
  border-bottom: 1px solid var(--grafito);
  transform: rotate(45deg);
  pointer-events: none;
}
.trampa { position: absolute; left: -9999px; opacity: 0; height: 0; }
.nota-form { font-size: .8125rem; color: var(--grafito); margin: 0; }

@media (min-width: 620px) {
  .formulario__par { display: grid; grid-template-columns: 1fr 1fr; gap: 1.75rem; }
}

/* ----- Pie --------------------------------------------------------------- */
.pie {
  border-top: 1px solid var(--linea-osc);
  padding-block: 3rem 2.5rem;
}
.pie__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: start;
}
.pie__lineas { display: grid; gap: .6rem; justify-items: start; }
.pie__lineas a { text-decoration: none; }
.pie__lineas a::before {
  content: '';
  display: inline-block;
  width: 14px; height: 1px;
  background: var(--cian-luz);
  margin-right: .75rem;
  vertical-align: middle;
}
.pie__legal { display: flex; flex-wrap: wrap; gap: 1.5rem; }
@media (min-width: 900px) {
  .pie__grid { grid-template-columns: 1.4fr 1fr 1fr; gap: 3rem; }
}

/* ----- Revelado al scroll ------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .75s var(--ease), transform .75s var(--ease);
  will-change: opacity, transform;
}
.reveal.es-visible,
.no-js .reveal {
  opacity: 1;
  transform: none;
}

/* Red de seguridad: si el JS falla, nada queda oculto. */
.no-js .reveal { transition: none; }

@media (prefers-reduced-motion: reduce) {
  .hero__plano .trazo { animation: none; stroke-dashoffset: 0; }
  .hero__plano .relleno { animation: none; opacity: .16; }
  .hero__titular .linea > span { animation: none; transform: none; }
  .hero__eyebrow, .hero__bajada, .hero__acciones, .hero__cota { animation: none; opacity: 1; }
  .reveal { transition-duration: .2s; transform: none; }
  html { scroll-behavior: auto; }
}

/* ----- Páginas auxiliares -------------------------------------------------- */
.pagina-mini {
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-block: 8rem 4rem;
}

/* ----- Móvil: la lámina abre el bloque a sangre y se pega al texto ------- */
@media (max-width: 899px) {
  .lamina--sangre {
    margin-left: calc(var(--margen) * -1);
    margin-right: calc(var(--margen-d) * -1);
    width: auto;
    border-left: 0;
    border-right: 0;
    aspect-ratio: 16 / 10;
  }
  .lamina--sangre .lamina__etiqueta { padding-left: var(--margen); }
  .manifiesto__lamina { margin-top: 1.75rem; margin-bottom: .5rem; max-width: none; }
  .servicio { gap: 1.5rem; }
  .servicio__col-lamina { margin-bottom: .25rem; }
}