/* OBLIKUA — Motion, Design & Branding Studio
   Sistema visual de la web: retícula modular, Plex Sans / Plex Mono, paleta Sumi · Shu · Washi · Ai · Usuzumi */

@font-face { font-family: "Plex"; font-weight: 300; font-display: swap; src: url("../fonts/plex-sans-300.woff") format("woff"); }
@font-face { font-family: "Plex"; font-weight: 400; font-display: swap; src: url("../fonts/plex-sans-400.woff") format("woff"); }
@font-face { font-family: "Plex"; font-weight: 600; font-display: swap; src: url("../fonts/plex-sans-600.woff") format("woff"); }
@font-face { font-family: "PlexMono"; font-weight: 400; font-display: swap; src: url("../fonts/plex-mono-400.woff") format("woff"); }
@font-face { font-family: "PlexMono"; font-weight: 500; font-display: swap; src: url("../fonts/plex-mono-500.woff") format("woff"); }
@font-face { font-family: "NotoJP"; font-weight: 500; font-display: swap; src: url("../fonts/noto-jp-500.woff") format("woff"); }

:root {
  --sumi: #1A1A1A;
  --shu: #D23A26;
  --washi: #EEE8DC;
  --ai: #23395B;
  --usu: #8C8A85;            /* Usuzumi: líneas y marcas, o texto sobre Sumi */
  --gris-texto: #5F5C56;     /* Usuzumi profundo: texto chico sobre papel (5,5:1) */
  --shu-texto: #B02E1C;      /* Shu profundo: texto chico rojo sobre papel (5,3:1) */
  --shu-claro: #EE6650;      /* Shu claro: texto chico rojo sobre Sumi (5,5:1) */
  --linea: #D6CFC2;
  --papel: #F6F3EC;

  --gutter: clamp(16px, 4vw, 56px);
  --max: 1360px;
  --ease: cubic-bezier(.65, 0, .35, 1);
  --ease-out: cubic-bezier(.16, 1, .3, 1);

  --f-sans: "Plex", system-ui, sans-serif;
  --f-mono: "PlexMono", ui-monospace, monospace;
  --f-jp: "NotoJP", "Yu Gothic", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--washi);
  color: var(--sumi);
  font-family: var(--f-sans);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
body.intro-activa { overflow: hidden; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; }
h1, h2, h3, p { margin: 0; }
::selection { background: var(--shu); color: var(--washi); }
:focus-visible { outline: 2px solid var(--shu); outline-offset: 3px; }

.contenedor { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }

/* ---------- tipografía utilitaria ---------- */
.etiqueta {
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
}
.jp { font-family: var(--f-jp); font-weight: 500; letter-spacing: .5em; }
.rojo { color: var(--shu); }
.etiqueta.rojo { color: var(--shu-texto); }
.gris { color: var(--gris-texto); }

/* ===================================================================== INTRO */
.intro {
  position: fixed; inset: 0; z-index: 100;
  background: var(--washi);
  display: grid; place-items: center;
  clip-path: polygon(0 0, 200% 0, 0 200%);
}
.intro[hidden] { display: none; }
.intro__reticula {
  position: absolute; inset: 0; pointer-events: none; opacity: 0;
  background-image:
    linear-gradient(to right, rgba(26,26,26,.06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(26,26,26,.06) 1px, transparent 1px);
  background-size: 40px 40px;
  background-position: center center;
}
.intro__marca { display: flex; flex-direction: column; align-items: center; gap: clamp(22px, 4vh, 36px); position: relative; }
.intro__iso { width: clamp(170px, 27vmin, 310px); overflow: visible; }
.intro__iso .mitad { transform-box: view-box; }
.intro__iso .sello { transform-box: fill-box; transform-origin: center; }
.intro__iso .tajo-barrido { transform-box: fill-box; transform-origin: 0 50%; }
.intro__palabra {
  font-weight: 600;
  font-size: clamp(30px, 5.4vmin, 50px);
  letter-spacing: .32em;
  margin-right: -.32em;
  line-height: 1;
  opacity: 0;
}
.intro__bajada { font-size: clamp(9.5px, 1.5vmin, 12.5px); opacity: 0; margin-top: -10px; }
.intro__kana { color: var(--shu); font-size: 13px; opacity: 0; }
.intro__saltar {
  position: absolute; right: var(--gutter); bottom: 28px;
  background: none; border: 0; padding: 8px 0; cursor: pointer;
  color: var(--gris-texto);
  font-family: var(--f-mono); font-size: 12px; letter-spacing: .16em; text-transform: uppercase;
}
.intro__saltar:hover { color: var(--sumi); }
.intro__tiempo { position: absolute; left: var(--gutter); bottom: 36px; color: var(--gris-texto); font-variant-numeric: tabular-nums; }

/* ===================================================================== HEADER */
.cabecera {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  transition: background .4s var(--ease), border-color .4s var(--ease), transform .4s var(--ease);
  border-bottom: 1px solid transparent;
}
.cabecera.con-fondo { background: rgba(238, 232, 220, .92); backdrop-filter: blur(10px); border-color: var(--linea); }
.cabecera.oculta { transform: translateY(-100%); }
.cabecera__fila { display: flex; align-items: center; justify-content: space-between; height: 76px; gap: 24px; }
.cabecera__logo img { height: 34px; width: auto; }
.nav { display: flex; align-items: center; gap: clamp(18px, 2.4vw, 36px); }
.nav a {
  text-decoration: none; position: relative; padding: 4px 0;
  font-family: var(--f-mono); font-size: 12.5px; letter-spacing: .14em; text-transform: uppercase;
}
.nav a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -2px; height: 2px;
  background: var(--shu); transform: scaleX(0); transform-origin: left; transition: transform .35s var(--ease);
}
.nav a:hover::after, .nav a[aria-current]::after { transform: scaleX(1); }
.nav .boton { padding: 12px 18px; }
.nav .boton::after { display: none; }
.menu-btn { display: none; background: none; border: 0; width: 44px; height: 44px; cursor: pointer; position: relative; }
.menu-btn span { position: absolute; left: 10px; right: 10px; height: 2px; background: var(--sumi); transition: transform .35s var(--ease), top .35s var(--ease); }
.menu-btn span:nth-child(1) { top: 17px; } .menu-btn span:nth-child(2) { top: 25px; }
.menu-abierto .menu-btn span:nth-child(1) { top: 21px; transform: rotate(45deg); }
.menu-abierto .menu-btn span:nth-child(2) { top: 21px; transform: rotate(-45deg); }

/* ---------- botones ---------- */
.boton {
  display: inline-flex; align-items: center; gap: 12px;
  background: var(--sumi); color: var(--washi);
  border: 0; border-radius: 0; cursor: pointer; text-decoration: none;
  padding: 18px 26px;
  font-family: var(--f-mono); font-size: 13px; letter-spacing: .14em; text-transform: uppercase;
  position: relative; overflow: hidden; isolation: isolate;
}
.boton::before {
  content: ""; position: absolute; inset: 0; z-index: -1; background: var(--shu);
  clip-path: polygon(0 100%, 0 100%, 0 100%); transition: clip-path .5s var(--ease);
}
.boton:hover::before { clip-path: polygon(0 100%, 0 -100%, 200% 100%); }
.boton--claro { background: var(--washi); color: var(--sumi); }
.boton--claro::before { background: var(--sumi); }
.boton--claro:hover { color: var(--washi); }
.boton .flecha { transition: transform .35s var(--ease); }
.boton:hover .flecha { transform: translate(3px, -3px); }
.enlace-flecha {
  display: inline-flex; gap: 10px; align-items: center; text-decoration: none;
  font-family: var(--f-mono); font-size: 13px; letter-spacing: .14em; text-transform: uppercase;
  border-bottom: 2px solid var(--shu); padding-bottom: 6px;
}
.enlace-flecha:hover .flecha { transform: translate(3px, -3px); }
.enlace-flecha .flecha { transition: transform .35s var(--ease); }

/* ===================================================================== HERO */
.hero { position: relative; min-height: 100svh; display: flex; align-items: flex-end; padding: 140px 0 56px; overflow: hidden; }
.hero__reticula {
  position: absolute; inset: 0; pointer-events: none;
  background-image: linear-gradient(to right, rgba(26,26,26,.07) 1px, transparent 1px);
  background-size: calc((min(100vw, var(--max)) - 2 * var(--gutter)) / 12) 100%;
  background-position: max(var(--gutter), calc((100vw - var(--max)) / 2 + var(--gutter))) 0;
  mask-image: linear-gradient(to bottom, transparent, #000 25%, #000 75%, transparent);
}
/* el gráfico se ancla al borde derecho de la retícula (no al de la ventana) y sangra apenas hacia afuera */
.hero__grafico {
  position: absolute; top: 41%; transform: translateY(-50%); pointer-events: none; overflow: hidden;
  width: min(42vw, 600px);
  right: calc((100vw - min(100vw, var(--max))) / 2 - 2vw);
}
.hero__contenido { position: relative; width: 100%; }
.hero__barra-barrido { transform-box: fill-box; transform-origin: 0 50%; }
.js .hero [data-entra] { opacity: 0; }
.js .hero__barra-barrido { transform: scaleX(0); }
.js .hero__anillo { stroke-dashoffset: 100; }
.hero__sup { display: flex; justify-content: flex-start; gap: 18px 40px; flex-wrap: wrap; margin-bottom: clamp(28px, 6vh, 64px); }
.hero h1 {
  font-weight: 600;
  font-size: clamp(48px, 8.4vw, 128px);
  line-height: .94;
  letter-spacing: -.035em;
  max-width: 11ch;
}
.hero h1 .ligera { font-weight: 300; color: var(--shu); display: block; }
.hero__inf { display: grid; grid-template-columns: 1fr auto; align-items: end; gap: 32px; margin-top: clamp(32px, 6vh, 64px); }
.hero__lead { max-width: 46ch; font-size: clamp(17px, 1.45vw, 20px); font-weight: 300; }
.hero__acciones { display: flex; gap: 28px; align-items: center; flex-wrap: wrap; }
.hero__claves { display: flex; gap: 0; border-top: 1px solid var(--sumi); margin-top: 40px; }
.hero__claves span { flex: 1; padding-top: 14px; }

/* ===================================================================== SECCIONES */
.seccion { padding: clamp(96px, 14vw, 180px) 0; position: relative; }
.seccion--oscura { background: var(--sumi); color: var(--washi); }
.seccion--papel { background: var(--papel); }
.seccion__cab {
  display: grid; grid-template-columns: repeat(12, 1fr); gap: 0 24px;
  border-top: 1px solid currentColor; padding-top: 18px; margin-bottom: clamp(48px, 7vw, 96px);
}
.seccion__num { grid-column: span 3; }
.seccion__nombre { grid-column: span 6; }
.seccion__kana { grid-column: span 3; text-align: right; color: var(--shu-texto); font-size: 14px; cursor: help; }
.seccion--oscura .seccion__kana { color: var(--shu-claro); }
.titulo--servicios { max-width: 13ch; margin-bottom: clamp(56px, 7vw, 96px); }
.titulo--proceso { max-width: 18ch; margin-bottom: clamp(56px, 7vw, 96px); }
.titulo--proyectos { max-width: 14ch; }
.titulo--contacto { font-size: clamp(72px, 11vw, 168px); line-height: .9; letter-spacing: -.045em; }
.titulo {
  font-weight: 600; font-size: clamp(36px, 5.2vw, 76px); line-height: 1.02; letter-spacing: -.025em;
}
.titulo .ligera { font-weight: 300; color: var(--shu); }

/* ---------- estudio ---------- */
.estudio { display: grid; grid-template-columns: repeat(12, 1fr); gap: 48px 24px; }
.estudio__titulo { grid-column: 1 / span 6; }
.estudio__texto { grid-column: 8 / span 5; display: flex; flex-direction: column; gap: 22px; padding-top: 10px; }
.estudio__texto .destacado { font-size: clamp(19px, 1.6vw, 22px); font-weight: 300; line-height: 1.5; }
.valores { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 24px; margin-top: 40px; }
.valor { border-top: 1px solid var(--sumi); padding: 26px 0 8px; display: flex; flex-direction: column; gap: 12px; }
.valor__marca { width: 34px; height: 34px; margin-bottom: 6px; }
.valor h3 { font-weight: 600; font-size: clamp(22px, 2vw, 28px); letter-spacing: -.01em; }
.valor p { color: #4a4740; font-size: 16px; max-width: 36ch; }

/* ---------- servicios ---------- */
.servicios-principales { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.principal {
  border-top: 1px solid rgba(238,232,220,.25); padding: 36px 0 0;
  display: flex; flex-direction: column; gap: 18px; position: relative;
}
.principal::before {
  content: ""; position: absolute; left: 0; top: -1px; height: 2px; width: 100%;
  background: var(--shu); transform: scaleX(.12); transform-origin: left; transition: transform .8s var(--ease);
}
.principal:hover::before { transform: scaleX(1); }
.principal__marca { width: 60px; height: 60px; }
.principal h3 { font-weight: 600; font-size: clamp(34px, 4.4vw, 64px); line-height: 1; letter-spacing: -.03em; }
.principal p { color: #cfc9bd; font-size: clamp(16px, 1.25vw, 18px); max-width: 44ch; line-height: 1.6; }
.principal .etiqueta { color: var(--shu-claro); }
.servicios__sub { margin: clamp(72px, 9vw, 120px) 0 8px; color: var(--usu); font-weight: 400; }
.servicios-secundarios { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 24px; }
.servicios-secundarios li { border-top: 1px solid rgba(238,232,220,.18); padding: 20px 0 26px; display: flex; flex-direction: column; gap: 6px; }
.servicios-secundarios strong { font-weight: 600; font-size: 19px; }
.servicios-secundarios span { color: #b7b2a8; font-size: 15px; }

/* ---------- proceso ---------- */
.proceso { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.paso { display: flex; flex-direction: column; gap: 18px; }
.paso__icono { aspect-ratio: 1; background: var(--papel); display: grid; place-items: center; position: relative; overflow: hidden; }
.paso__icono svg, .paso__icono img { width: 46%; }
.paso h3 { font-weight: 600; font-size: 22px; display: flex; align-items: baseline; gap: 12px; }
.paso__n { font-family: var(--f-mono); font-weight: 400; font-size: 14px; color: var(--shu-texto); }
.paso p { color: #4a4740; font-size: 15.5px; }

/* ---------- proyectos ---------- */
.cab-flex { display: flex; justify-content: space-between; align-items: flex-end; gap: 32px; flex-wrap: wrap; margin-bottom: 56px; }
.proyectos-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 56px 24px; }
.proyecto { grid-column: span 6; text-decoration: none; display: flex; flex-direction: column; gap: 16px; }
.proyecto:nth-child(3n) { grid-column: span 12; }
.proyectos-grid--pagina .proyecto, .proyectos-grid--pagina .proyecto:nth-child(3n) { grid-column: span 6; }
.proyectos-grid--pagina .proyecto:nth-child(5n+1) { grid-column: span 12; }
.proyecto__img {
  aspect-ratio: 16 / 10; position: relative; overflow: hidden; background: #DAD3C5;
}
.proyecto:nth-child(3n) .proyecto__img { aspect-ratio: 21 / 9; }
.proyecto__img img { width: 100%; height: 100%; object-fit: cover; transition: transform 1s var(--ease-out); }
.proyecto:hover .proyecto__img img { transform: scale(1.04); }
.proyecto__img::after {
  content: ""; position: absolute; right: -10%; bottom: -10%; width: 40%; aspect-ratio: 1;
  background: linear-gradient(135deg, transparent 47%, var(--shu) 47%, var(--shu) 53%, transparent 53%);
  transform: translate(30%, 30%); transition: transform .6s var(--ease);
}
.proyecto:hover .proyecto__img::after { transform: translate(0, 0); }
.proyecto__meta { display: flex; justify-content: space-between; gap: 16px; align-items: baseline; }
.proyecto h3 { font-weight: 600; font-size: clamp(22px, 2vw, 28px); letter-spacing: -.01em; }
.proyecto .etiqueta { color: var(--gris-texto); }
.proyecto__num { font-family: var(--f-mono); font-weight: 400; font-size: 13px; color: var(--shu-texto); vertical-align: .35em; margin-right: .5em; letter-spacing: .1em; }

/* marcador de posición: proyectos aún no cargados */
.vacio {
  position: absolute; inset: 0; display: grid; place-items: center;
  background: #E4DDCF; box-shadow: inset 0 0 0 1px #D2CAB9;
}
.vacio__sello { display: flex; flex-direction: column; align-items: center; gap: 14px; color: var(--gris-texto); text-align: center; padding: 0 20px; }
.vacio__sello svg, .vacio__sello img { width: 54px; height: auto; opacity: .55; }
.proyecto--vacio h3 { color: var(--gris-texto); }
.proyecto--vacio:hover h3 { color: var(--sumi); }

/* ---------- clientes ---------- */
.clientes { display: grid; grid-template-columns: repeat(12, 1fr); gap: 48px 24px; align-items: start; }
.clientes__texto { grid-column: 1 / span 5; display: flex; flex-direction: column; gap: 22px; }
.logos { grid-column: 7 / span 6; display: grid; grid-template-columns: repeat(3, 1fr); border-left: 1px solid var(--linea); border-top: 1px solid var(--linea); }
.logo-cliente {
  aspect-ratio: 4 / 3; display: grid; place-items: center; padding: 22%;
  border-right: 1px solid var(--linea); border-bottom: 1px solid var(--linea);
}
.logo-cliente img { max-height: 100%; width: auto; filter: grayscale(1); opacity: .75; transition: filter .3s, opacity .3s; }
.logo-cliente:hover img { filter: none; opacity: 1; }
.logo-cliente--libre { color: var(--gris-texto); text-align: center; padding: 10%; position: relative; text-decoration: none; transition: background .3s, color .3s; }
.logo-cliente--libre:hover { background: var(--papel); color: var(--sumi); }
.logo-cliente--libre::before {
  content: ""; position: absolute; inset: 14px; border: 1px dashed #c8c0b1;
}
.logo-cliente--libre span { position: relative; }

/* ---------- manifiesto ---------- */
.manifiesto { background: var(--shu); color: var(--washi); padding: clamp(96px, 13vw, 170px) 0; overflow: hidden; position: relative; }
.manifiesto blockquote { margin: 0; font-weight: 600; font-size: clamp(34px, 5.6vw, 84px); line-height: 1.1; letter-spacing: -.03em; max-width: 16ch; position: relative; }
.manifiesto blockquote .sumi { color: var(--sumi); }
.manifiesto .etiqueta { margin-bottom: 36px; display: block; }
.manifiesto__tajo { position: absolute; right: -8%; top: -30%; height: 160%; width: auto; pointer-events: none; }

/* ---------- contacto ---------- */
.contacto { display: grid; grid-template-columns: repeat(12, 1fr); gap: 56px 24px; }
.contacto__intro { grid-column: 1 / span 5; display: flex; flex-direction: column; gap: 28px; }
.contacto__datos { display: flex; flex-direction: column; gap: 18px; margin-top: 12px; }
.contacto__datos a { text-decoration: none; font-size: 20px; }
.contacto__mail { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.enlace-boton {
  background: none; border: 0; padding: 4px 0; cursor: pointer; color: var(--sumi);
  font-family: var(--f-mono); font-size: 12px; letter-spacing: .14em; text-transform: uppercase;
  border-bottom: 1px solid var(--shu); }
.enlace-boton:hover { color: var(--shu-texto); }
.contacto__datos a:hover { color: var(--shu); }
.formulario { grid-column: 7 / span 6; display: grid; grid-template-columns: 1fr 1fr; gap: 28px 24px; }
.campo { display: flex; flex-direction: column; gap: 10px; }
.campo--ancho { grid-column: 1 / -1; }
.campo label { font-family: var(--f-mono); font-size: 12px; letter-spacing: .14em; text-transform: uppercase; color: var(--gris-texto); }
.campo [aria-invalid="true"] { border-bottom: 2px solid var(--shu); }
.campo input, .campo select, .campo textarea {
  font: inherit; color: var(--sumi); background: transparent;
  border: 0; border-bottom: 1px solid var(--sumi); border-radius: 0;
  padding: 10px 0 12px; outline: none; transition: border-color .3s;
}
.campo textarea { resize: vertical; min-height: 120px; }
.campo select { appearance: none; background: linear-gradient(45deg, transparent 50%, var(--sumi) 50%) right 6px center / 8px 8px no-repeat; }
.campo input:focus, .campo select:focus, .campo textarea:focus { border-bottom: 2px solid var(--shu); padding-bottom: 11px; }
.formulario__pie { grid-column: 1 / -1; display: flex; justify-content: space-between; align-items: center; gap: 24px; flex-wrap: wrap; }
.formulario__nota { font-size: 14px; color: var(--gris-texto); max-width: 36ch; }
.formulario__estado { grid-column: 1 / -1; font-size: 15px; color: var(--sumi); min-height: 1em; display: flex; gap: 12px; flex-wrap: wrap; align-items: baseline; }
.formulario__estado:empty { display: none; }

/* ===================================================================== FOOTER */
.pie { background: var(--sumi); color: var(--washi); padding: 80px 0 36px; }
.pie__fila { display: grid; grid-template-columns: repeat(12, 1fr); gap: 40px 24px; }
.pie__logo { grid-column: 1 / span 5; }
.pie__logo img { width: min(360px, 100%); }
.pie__col { grid-column: span 2; display: flex; flex-direction: column; gap: 10px; }
.pie__col .etiqueta { color: var(--usu); margin-bottom: 6px; }
.pie__col a { text-decoration: none; color: #d9d3c7; }
.pie__col a:hover { color: var(--shu); }
.pie__base { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; margin-top: 80px; padding-top: 22px; border-top: 1px solid rgba(238,232,220,.18); color: var(--usu); }
.pie__base button { background: none; border: 0; color: inherit; cursor: pointer; font: inherit; padding: 0; }
.pie__base button:hover { color: var(--washi); }

/* ===================================================================== PÁGINA PROYECTOS / CASO */
.pagina-cab { padding-top: 180px; padding-bottom: 72px; }
.pagina-cab h1 { font-weight: 600; font-size: clamp(56px, 10vw, 160px); line-height: .92; letter-spacing: -.04em; }
.pagina-cab p { max-width: 52ch; font-size: 19px; font-weight: 300; margin-top: 28px; }
.filtros { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 56px; }
.filtro {
  background: none; border: 1px solid var(--sumi); cursor: pointer; color: var(--sumi);
  padding: 10px 16px; font-family: var(--f-mono); font-size: 12px; letter-spacing: .14em; text-transform: uppercase;
  transition: background .25s, color .25s;
}
.filtro:hover { background: rgba(26,26,26,.06); }
.filtro[aria-pressed="true"] { background: var(--sumi); color: var(--washi); }

.caso-hero { padding: 90px 0 0; }
.caso-hero h1 { font-weight: 600; font-size: clamp(48px, 8vw, 128px); line-height: .94; letter-spacing: -.035em; margin: 18px 0 40px; }
.caso-ficha { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; border-top: 1px solid var(--sumi); padding-top: 16px; }
.caso-ficha dt { color: var(--gris-texto); margin-bottom: 6px; }
.caso-ficha dd { margin: 0; }
.caso-portada { margin-top: 64px; aspect-ratio: 21 / 9; position: relative; overflow: hidden; background: #DAD3C5; }
.caso-portada img { width: 100%; height: 100%; object-fit: cover; }
.caso-bloques { display: grid; grid-template-columns: repeat(12, 1fr); gap: 72px 24px; padding: clamp(80px, 10vw, 140px) 0; }
.caso-bloque { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(12, 1fr); gap: 24px; }
.caso-bloque .etiqueta { grid-column: span 3; color: var(--shu); padding-top: 6px; }
.caso-bloque p { grid-column: 5 / span 7; font-size: clamp(19px, 1.7vw, 24px); font-weight: 300; line-height: 1.5; }
.caso-galeria { grid-column: 1 / -1; display: grid; grid-template-columns: 1fr 1fr; gap: 48px 24px; }
.caso-galeria figure { margin: 0; aspect-ratio: 4 / 3; position: relative; overflow: hidden; background: #DAD3C5; }
.caso-galeria figure:first-child { grid-column: 1 / -1; }
.caso-galeria img { width: 100%; height: 100%; object-fit: cover; }
.caso-galeria figure { display: flex; flex-direction: column; aspect-ratio: auto; background: none; overflow: visible; }
.caso-galeria figure > img { width: 100%; height: auto; aspect-ratio: auto; box-shadow: 0 0 0 1px var(--linea); }
.caso-galeria figure > .vacio { aspect-ratio: 4 / 3; position: relative; }
.caso-galeria figure:first-child > .vacio { aspect-ratio: 16 / 9; }
.caso-galeria figcaption { margin-top: 12px; font-size: 14px; color: var(--gris-texto); max-width: 60ch; }
.caso-enlaces { grid-column: 1 / -1; display: flex; gap: 32px; flex-wrap: wrap; }
.aviso-plantilla { background: var(--sumi); color: var(--washi); padding: 14px var(--gutter); text-align: center; font-family: var(--f-mono); font-size: 12px; letter-spacing: .12em; text-transform: uppercase; }
.aviso-plantilla a { color: var(--shu); }
.caso-siguiente { border-top: 1px solid var(--sumi); padding: 48px 0 120px; display: flex; justify-content: space-between; align-items: center; gap: 24px; flex-wrap: wrap; }

/* ===================================================================== 404 */
.error404 { min-height: 100svh; display: flex; flex-direction: column; justify-content: center; align-items: flex-start; gap: 22px; padding-top: 80px; padding-bottom: 80px; }
.error404__sello { width: clamp(110px, 16vw, 180px); margin-bottom: 18px; }
.error404 h1 { font-weight: 600; font-size: clamp(40px, 7vw, 104px); line-height: .98; letter-spacing: -.035em; max-width: 14ch; }
.error404__texto { font-size: 19px; font-weight: 300; max-width: 46ch; }
.error404__acciones { display: flex; gap: 28px; align-items: center; flex-wrap: wrap; margin-top: 12px; }

/* ===================================================================== REVELADO AL SCROLL */
.revelar { opacity: 0; transform: translateY(28px); transition: opacity .9s var(--ease-out), transform .9s var(--ease-out); }
.revelar.visible { opacity: 1; transform: none; }
.revelar-d1 { transition-delay: .08s; } .revelar-d2 { transition-delay: .16s; } .revelar-d3 { transition-delay: .24s; }

/* ===================================================================== RESPONSIVE */
@media (min-width: 1900px) and (min-height: 1100px) { .hero__grafico { top: 35%; } }
@media (max-width: 1000px) {
  .nav { position: fixed; inset: 76px 0 auto 0; flex-direction: column; align-items: flex-start; gap: 0;
         background: var(--washi); border-bottom: 1px solid var(--linea); padding: 8px var(--gutter) 28px;
         clip-path: inset(0 0 100% 0); transition: clip-path .5s var(--ease); }
  .nav a { font-size: 15px; padding: 16px 0; width: 100%; border-bottom: 1px solid var(--linea); }
  .nav .boton { margin-top: 20px; width: auto; border: 0; padding: 16px 22px; }
  .menu-abierto .nav { clip-path: inset(0 0 0 0); }
  .menu-btn { display: block; }
  .hero__grafico { top: 84px; transform: none; width: 50vw; right: -8vw; }
  .hero__inf { grid-template-columns: 1fr; gap: 28px; }
  .hero__lead { max-width: 52ch; }
  .estudio__titulo, .estudio__texto { grid-column: 1 / -1; }
  .valores { grid-template-columns: 1fr 1fr 1fr; gap: 0 20px; }
  .servicios-secundarios { grid-template-columns: 1fr 1fr; }
  .proceso { grid-template-columns: 1fr 1fr; gap: 48px 24px; }
  .clientes__texto, .logos { grid-column: 1 / -1; }
  .contacto__intro, .formulario { grid-column: 1 / -1; }
  .pie__logo { grid-column: 1 / -1; }
  .pie__col { grid-column: span 4; }
  .caso-ficha { grid-template-columns: 1fr 1fr; }
  .caso-bloques, .caso-bloque { grid-template-columns: 1fr; }
  .caso-bloque { gap: 14px; }
  .caso-bloque .etiqueta, .caso-bloque p { grid-column: 1 / -1; }
}
@media (max-width: 640px) {
  body { font-size: 16px; }
  .cabecera__fila { height: 64px; }
  .nav { inset: 64px 0 auto 0; }
  .cabecera__logo img { height: 28px; }
  .hero { padding-top: 110px; }
  .hero__grafico { width: 58vw; right: -14vw; top: 74px; }
  .hero__sup { padding-right: 36vw; }
  .hero { padding-top: 46vw; }
  .hero__sup { flex-direction: column; gap: 6px; }
  .hero__inf { grid-template-columns: 1fr; }
  .hero__claves { flex-direction: column; gap: 8px; }
  .seccion__cab { grid-template-columns: 1fr 1fr; }
  .seccion__num { grid-column: 1; } .seccion__nombre { grid-column: 2; text-align: right; } .seccion__kana { display: none; }
  .valores { grid-template-columns: 1fr; }
  .servicios-principales, .servicios-secundarios { grid-template-columns: 1fr; }
  .proceso { grid-template-columns: 1fr; gap: 40px; }
  .paso__icono { aspect-ratio: 2 / 1; }
  .paso__icono svg, .paso__icono img { width: 24%; }
  .proyecto, .proyecto:nth-child(3n),
  .proyectos-grid--pagina .proyecto, .proyectos-grid--pagina .proyecto:nth-child(5n+1) { grid-column: 1 / -1; }
  .proyecto:nth-child(3n) .proyecto__img { aspect-ratio: 16 / 10; }
  .manifiesto { padding-bottom: 62vw; }
  .manifiesto__tajo { top: auto; bottom: -6vw; right: -4vw; height: 60vw; }
  .proyecto__meta { flex-direction: column; gap: 4px; }
  .formulario { grid-template-columns: 1fr; }
  .pie__col { grid-column: span 6; }
  .caso-galeria { grid-template-columns: 1fr; }
  .caso-portada { aspect-ratio: 4 / 3; }
}

/* pantallas táctiles: toda zona tocable mide al menos 44 × 44 px (sin cambiar el diseño con mouse) */
@media (pointer: coarse) {
  .cabecera__logo { display: flex; align-items: center; min-height: 44px; }
  .nav a { display: inline-flex; align-items: center; min-height: 44px; }
  .nav .boton, .boton { min-height: 48px; }
  .enlace-flecha { min-height: 44px; padding-top: 10px; }
  .filtro { min-height: 44px; padding: 12px 18px; }
  .contacto__datos a, .pie__col a { display: inline-flex; align-items: center; min-height: 44px; }
  .pie__col { gap: 0; }
  .pie__base button, .enlace-boton { min-height: 44px; }
  .aviso-plantilla a { display: inline-block; padding: 14px 6px; margin: -14px 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
  .revelar { opacity: 1; transform: none; }
  .js .hero [data-entra] { opacity: 1; }
  .js .hero__anillo { stroke-dashoffset: 0; stroke-dasharray: none; }
  .js .hero__barra-barrido { transform: none; }
}