/* =========================================================
   Luma Digital Studio — estilos base
   Tokens tomados de la guía de estilo (lienzo negro, display en
   mayúsculas con tracking amplio, radios 0/pill) + los 3 colores del
   logo de Luma, usados como degradado de luz sobre el negro.
   ========================================================= */

:root {
  /* Colores */
  --color-primary: #ffffff;
  --color-ink: #ffffff;
  --color-body: #cccccc;
  --color-body-strong: #e6e6e6;
  --color-muted: #999999;
  --color-muted-soft: #666666;
  --color-hairline: #262626;
  --color-hairline-strong: #3a3a3a;
  --color-canvas: #000000;
  --color-surface-soft: #0d0d0d;
  --color-surface-card: #141414;
  --color-surface-elevated: #1f1f1f;
  --color-on-primary: #000000;
  --color-on-dark: #ffffff;
  --color-on-photo: #ffffff;
  --color-link: #b4abd8;           /* lavanda aclarado para legibilidad */
  --color-warning: #d4a017;
  --color-success: #5fa657;

  /* Marca Luma (colores del logo) */
  --luma-navy: #171c35;
  --luma-blue: #426db3;
  --luma-lavender: #9489c0;
  --luma-gradient: linear-gradient(90deg, var(--luma-navy) 0%, var(--luma-blue) 50%, var(--luma-lavender) 100%);
  /* Para texto y líneas finas: el navy se pierde sobre negro, así que arranca en azul */
  --luma-gradient-text: linear-gradient(90deg, var(--luma-blue) 0%, var(--luma-lavender) 70%, #c9c2e6 100%);

  /* Tipografía (sustitutos de las fuentes propietarias) */
  --font-primary: "Inter", system-ui, sans-serif;
  --font-text: "Inter", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;

  /* Espaciado */
  --spacing-xxs: 4px;
  --spacing-xs: 8px;
  --spacing-sm: 12px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 40px;
  --spacing-xxl: 64px;
  --spacing-section: 120px;

  /* Radios */
  --radius-none: 0;
  --radius-pill: 9999px;
  --radius-full: 9999px;

  /* Layout */
  --max-width: 1200px;
  --gutter: 24px;
  --nav-height: 56px;

  color-scheme: dark;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: var(--nav-height); }
body {
  background: var(--color-canvas);
  color: var(--color-body);
  font-family: var(--font-text);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button, input, textarea { font: inherit; color: inherit; }
::selection { background: var(--luma-lavender); color: var(--color-on-primary); }
[hidden] { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---------- Escala tipográfica ---------- */
.display-xl, .display-lg, .display-md, .display-sm, .title-md, .title-sm {
  font-family: var(--font-primary);
  font-weight: 400;
  text-transform: uppercase;
  color: var(--color-ink);
}
.display-xl { font-size: 64px; line-height: 1.1; letter-spacing: 4px; }
.display-lg { font-size: 48px; line-height: 1.15; letter-spacing: 3px; }
.display-md { font-size: 32px; line-height: 1.2; letter-spacing: 2px; }
.display-sm { font-size: 24px; line-height: 1.3; letter-spacing: 1.5px; }
.title-md   { font-size: 20px; line-height: 1.3; letter-spacing: 1px; }
.title-sm   { font-size: 16px; line-height: 1.3; letter-spacing: 1.5px; }
.body       { font-size: 16px; line-height: 1.5; color: var(--color-body); }
.body-sm    { font-size: 14px; line-height: 1.5; color: var(--color-body); }
.caption, .mono {
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.4;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-body-strong);
}
.caption--muted { color: var(--color-muted); }

.text-luma {
  background: var(--luma-gradient-text);
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
}
.caption--luma { color: var(--luma-lavender); }

/* ---------- Layout ---------- */
.container { width: 100%; max-width: calc(var(--max-width) + var(--gutter) * 2); margin: 0 auto; padding: 0 var(--gutter); }
.section { padding: var(--spacing-section) 0; border-top: 1px solid var(--color-hairline); }
.section--soft { background: var(--color-surface-soft); }
.section__head { display: grid; gap: var(--spacing-md); max-width: 760px; margin-bottom: var(--spacing-xxl); }
.section__head--row { max-width: none; display: flex; align-items: flex-end; justify-content: space-between; gap: var(--spacing-lg); flex-wrap: wrap; }
.section__head--row > div { display: grid; gap: var(--spacing-md); }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: var(--spacing-xxl); align-items: center; }
.split--top { align-items: start; }
.split > * { min-width: 0; }
.split__text { display: grid; gap: var(--spacing-lg); justify-items: start; }

.grid { display: grid; gap: var(--spacing-md); }
.grid--2 { grid-template-columns: repeat(2, 1fr); gap: var(--spacing-lg); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--1 { grid-template-columns: 1fr; }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

/* ---------- Botones y enlaces ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  height: 44px; padding: 14px 32px;
  border: 1px solid var(--color-on-dark);
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--color-on-dark);
  font-family: var(--font-primary);
  font-size: 14px; line-height: 1; letter-spacing: 2.5px; text-transform: uppercase;
  cursor: pointer; white-space: nowrap;
  transition: background .25s ease, color .25s ease;
}
.btn:hover, .btn:focus-visible { background: var(--color-primary); color: var(--color-on-primary); }
.btn--solid {
  border: 0;
  background: var(--luma-gradient); background-size: 200% 100%; background-position: 0% 0;
  color: var(--color-on-dark);
  transition: background-position .5s ease, box-shadow .3s ease;
}
.btn--solid:hover, .btn--solid:focus-visible {
  background: var(--luma-gradient); background-size: 200% 100%; background-position: 100% 0;
  color: var(--color-on-dark);
  box-shadow: 0 0 32px rgba(148, 137, 192, .35);
}
.btn--sm { height: 36px; padding: 10px 20px; font-size: 12px; letter-spacing: 2px; }

.link {
  font-family: var(--font-primary);
  font-size: 14px; letter-spacing: 2.5px; text-transform: uppercase;
  color: var(--color-link);
  border-bottom: 1px solid transparent; transition: border-color .2s;
}
.link:hover { border-color: var(--color-link); }
:focus-visible { outline: 1px solid var(--luma-lavender); outline-offset: 4px; }

/* ---------- "Fotografía" (placeholder con degradado si no hay imagen) ---------- */
.photo {
  background-color: var(--color-surface-card);
  background-image:
    var(--img, none),
    radial-gradient(120% 90% at 75% 15%, rgba(66,109,179,.35) 0%, rgba(23,28,53,.6) 40%, var(--color-canvas) 85%);
  background-size: cover;
  background-position: center;
}
.photo--tall { aspect-ratio: 4 / 5; }

/* ---------- Nav (estilo Bugatti: menú · logo al centro · enlace) ---------- */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 60;
  height: var(--nav-height);
  background: transparent;
  transition: background .3s;
}
.nav.is-scrolled { background: rgba(0,0,0,.92); backdrop-filter: blur(8px); }
.nav.is-open { background: transparent; backdrop-filter: none; }
.nav::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 1px;
  background: var(--luma-gradient); opacity: 0; transition: opacity .3s;
}
.nav.is-scrolled:not(.is-open)::after { opacity: 1; }
.nav__inner {
  height: 100%; padding: 0 var(--spacing-xl);
  display: grid; grid-template-columns: 1fr auto 1fr; align-items: center;
}
.nav__menu, .nav__right {
  display: inline-flex; align-items: center; gap: var(--spacing-sm);
  font-family: var(--font-mono); font-size: 11px; line-height: 1; letter-spacing: 2px; text-transform: uppercase;
  color: var(--color-on-dark); background: none; border: 0; cursor: pointer;
}
.nav__menu { justify-self: start; }
.nav__right { justify-self: end; transition: color .2s; }
.nav__right:hover, .nav__menu:hover { color: var(--luma-lavender); }
.nav__burger { display: grid; gap: 5px; width: 16px; }
.nav__burger span { display: block; height: 1px; background: currentColor; transition: transform .3s; }
.nav.is-open .nav__burger span:nth-child(1) { transform: translateY(3px) rotate(45deg); }
.nav.is-open .nav__burger span:nth-child(2) { transform: translateY(-3px) rotate(-45deg); }

.wordmark { display: inline-flex; align-items: center; flex-shrink: 0; }
.wordmark img { height: 30px; width: auto; max-width: 100%; }
.wordmark--lg img { height: 56px; }
/* El logo de la barra aparece al bajar, cuando el logo grande del hero ya no se ve */
.nav__logo { justify-self: center; opacity: 0; transform: translateY(-4px); transition: opacity .35s, transform .35s; pointer-events: none; }
.nav.is-scrolled .nav__logo, .nav.is-open .nav__logo { opacity: 1; transform: none; pointer-events: auto; }
.nav__logo img { height: 26px; }

.footer__list a:hover, .contact-list a:hover { color: var(--luma-lavender); }
/* Enlace a Instagram con ícono */
.ig-link { display: inline-flex; align-items: center; gap: var(--spacing-xs); color: inherit; transition: color .2s; }
.ig-link .icon { flex-shrink: 0; }
.ig-link:hover, .ig-link:focus-visible { color: var(--luma-lavender); }

/* ---------- Menú a pantalla completa ---------- */
.menu {
  position: fixed; inset: 0; z-index: 55;
  background:
    radial-gradient(60% 50% at 100% 0%, rgba(66,109,179,.25) 0%, transparent 70%),
    radial-gradient(50% 40% at 0% 100%, rgba(148,137,192,.18) 0%, transparent 70%),
    var(--color-canvas);
  display: flex; padding-top: var(--nav-height);
  animation: menu-in .35s ease;
}
@keyframes menu-in { from { opacity: 0; } }
.menu__inner { display: flex; flex-direction: column; justify-content: space-between; padding-block: var(--spacing-xxl) var(--spacing-xl); }
.menu__links { display: grid; border-top: 1px solid var(--color-hairline); }
.menu__link {
  display: grid; grid-template-columns: 56px 1fr; align-items: baseline;
  padding: var(--spacing-md) 0; border-bottom: 1px solid var(--color-hairline);
  font-family: var(--font-primary); font-size: 32px; line-height: 1.2; letter-spacing: 2px; text-transform: uppercase;
  color: var(--color-ink); transition: color .2s, padding-left .3s;
}
.menu__link:hover { padding-left: var(--spacing-xs); }
.menu__link:hover span:last-child { background: var(--luma-gradient-text); -webkit-background-clip: text; background-clip: text; color: transparent; }
.menu__foot { display: flex; flex-wrap: wrap; gap: var(--spacing-lg); margin-top: var(--spacing-xl); }
body.menu-open { overflow: hidden; }

/* ---------- Hero (logo al centro sobre foto teñida) ---------- */
.hero {
  position: relative; min-height: 100vh; min-height: 100svh;
  display: flex; align-items: center; justify-content: center;
  padding: calc(var(--nav-height) + var(--spacing-xxl)) 0 var(--spacing-section);
  overflow: hidden; isolation: isolate; text-align: center;
}
.hero__photo { position: absolute; inset: 0; z-index: -3; filter: grayscale(1) contrast(1.1); }
/* Video de fondo: ocupa todo el hero en cualquier pantalla */
.hero__media { position: absolute; inset: 0; z-index: -3; overflow: hidden; background: var(--color-canvas); }
.hero__video { width: 100%; height: 100%; object-fit: cover; display: block; }
/* Capa oscura ("tela") sobre el video: más densa al centro, detrás del logo, el lema y el botón */
.hero--video .hero__tint {
  background:
    radial-gradient(ellipse 55% 50% at 50% 50%, rgba(0,0,0,.62) 0%, rgba(0,0,0,.42) 55%, rgba(0,0,0,.2) 100%),
    linear-gradient(180deg, rgba(0,0,0,.45) 0%, transparent 22%, transparent 65%, var(--color-canvas) 100%);
}
.hero--video .hero__glow { opacity: .45; }
.hero--video .hero__logo img, .hero--video .hero__tagline { filter: drop-shadow(0 2px 18px rgba(0,0,0,.55)); }
/* Tinte de marca: como el rojo de Bugatti, aquí navy → azul → lavanda */
.hero__tint {
  position: absolute; inset: 0; z-index: -2;
  background:
    linear-gradient(180deg, transparent 0%, transparent 45%, rgba(0,0,0,.75) 80%, var(--color-canvas) 100%),
    linear-gradient(120deg, rgba(23,28,53,.85) 0%, rgba(66,109,179,.7) 50%, rgba(148,137,192,.65) 100%);
}
.hero__glow {
  position: absolute; z-index: -1;
  width: 60vmax; height: 60vmax; left: 50%; top: 40%;
  translate: -50% -50%;
  background:
    radial-gradient(circle at 40% 45%, rgba(148,137,192,.35) 0%, transparent 45%),
    radial-gradient(circle at 60% 55%, rgba(66,109,179,.35) 0%, transparent 50%);
  filter: blur(30px);
  pointer-events: none;
  animation: glow 14s ease-in-out infinite alternate;
}
@keyframes glow { to { transform: translate(4vmax, -3vmax) scale(1.1); } }
.hero__content { display: grid; justify-items: center; gap: var(--spacing-lg); }
.hero__logo { width: min(520px, 78vw); line-height: 0; }
.hero__logo img { width: 100%; height: auto; }
.hero__rule { width: min(320px, 50vw); height: 1px; background: rgba(255,255,255,.7); margin-top: var(--spacing-xs); }
.hero__tagline {
  max-width: 760px;
  font-family: var(--font-primary); font-weight: 400;
  font-size: 22px; line-height: 1.35; letter-spacing: 3px; text-transform: uppercase;
  color: var(--color-ink);
  text-wrap: balance;
}
.hero .btn { margin-top: var(--spacing-sm); border-color: rgba(255,255,255,.8); }

/* ---------- Tarjeta flotante ---------- */
.callout {
  position: fixed; z-index: 40;
  right: max(16px, env(safe-area-inset-right, 0px));
  bottom: calc(16px + env(safe-area-inset-bottom, 0px));
  width: 320px; max-width: calc(100vw - 32px);
  background: var(--color-surface-card); border: 1px solid var(--color-hairline-strong);
  padding: var(--spacing-md); display: grid; gap: var(--spacing-md);
  animation: callout-in .5s ease .8s both;
}
@keyframes callout-in { from { opacity: 0; transform: translateY(12px); } }
.callout__body { display: grid; grid-template-columns: 48px 1fr; gap: var(--spacing-sm); align-items: center; padding-right: var(--spacing-lg); }
.callout__thumb { width: 48px; height: 48px; }
.callout__title { display: block; color: var(--color-on-dark); }
.callout__text { display: block; color: var(--color-muted); }
.callout__btn {
  display: block; text-align: center; padding: 10px; border: 1px solid var(--color-hairline-strong);
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 2px; text-transform: uppercase; color: var(--color-on-dark);
  transition: border-color .2s, background .2s;
}
.callout__btn:hover { border-color: transparent; background: var(--luma-gradient); }
.callout__close {
  position: absolute; top: 6px; right: 8px; width: 28px; height: 28px;
  background: none; border: 0; color: var(--color-muted); font-size: 18px; line-height: 1; cursor: pointer;
}
.callout__close:hover { color: var(--color-on-dark); }

/* ---------- Marquee ---------- */
.marquee { overflow: hidden; border-top: 1px solid var(--color-hairline); border-bottom: 1px solid var(--color-hairline); padding: var(--spacing-lg) 0; }
.marquee__track { display: flex; width: max-content; animation: marquee 40s linear infinite; }
.marquee__item {
  font-family: var(--font-primary); font-size: 14px; letter-spacing: 6px; text-transform: uppercase;
  color: var(--color-muted); padding: 0 var(--spacing-xl);
  display: inline-flex; align-items: center; gap: var(--spacing-xl);
}
.marquee__item::after { content: ""; width: 4px; height: 4px; border-radius: var(--radius-full); background: var(--luma-lavender); }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- Servicios (filas desplegables) ---------- */
.rows { border-top: 1px solid var(--color-hairline); }
.row { border-bottom: 1px solid var(--color-hairline); }
.row__head {
  display: grid; grid-template-columns: 64px 1fr 40px; align-items: center;
  padding: var(--spacing-lg) 0; cursor: pointer; list-style: none;
}
.row__head::-webkit-details-marker { display: none; }
.row__head:hover .title-md { color: var(--color-body-strong); }
.row__icon {
  position: relative; width: 40px; height: 40px; border: 1px solid var(--color-hairline-strong); border-radius: var(--radius-full);
  transition: transform .3s, border-color .3s;
}
.row__icon::before, .row__icon::after {
  content: ""; position: absolute; left: 50%; top: 50%; width: 12px; height: 1px; background: var(--color-on-dark); transform: translate(-50%, -50%);
}
.row__icon::after { transform: translate(-50%, -50%) rotate(90deg); }
.row[open] .row__icon { transform: rotate(45deg); border-color: var(--luma-lavender); }
.row[open] .row__head .mono { color: var(--luma-lavender); }
.row__body { padding: 0 0 var(--spacing-lg) 64px; display: grid; gap: var(--spacing-md); max-width: 760px; }
.tags { display: flex; gap: var(--spacing-sm); flex-wrap: wrap; }
.tags li { border: 1px solid var(--color-hairline-strong); border-radius: var(--radius-pill); padding: 6px 14px; }

/* ---------- Pilares (celdas con hairlines) ---------- */
.hairline-grid { gap: 0; border-top: 1px solid var(--color-hairline); border-left: 1px solid var(--color-hairline); }
.cell {
  display: grid; gap: var(--spacing-md); align-content: start;
  padding: var(--spacing-xl) var(--spacing-lg);
  border-right: 1px solid var(--color-hairline); border-bottom: 1px solid var(--color-hairline);
  min-height: 240px; transition: background .3s;
}
.cell { position: relative; }
.cell::before {
  content: ""; position: absolute; left: 0; right: 0; top: -1px; height: 2px;
  background: var(--luma-gradient); transform: scaleX(0); transform-origin: left; transition: transform .4s ease;
}
.cell:hover { background: var(--color-surface-soft); }
.cell:hover::before { transform: scaleX(1); }

/* Fondo ilustrado de las tarjetas de áreas (diseño / tecnología) */
.cell--art { overflow: hidden; min-height: 400px; isolation: isolate; }
.cell--art > :not(.cell__art) { position: relative; z-index: 1; max-width: 520px; }
.cell__art {
  position: absolute; right: 0; bottom: 0; z-index: 0;
  width: 78%; max-width: 560px; height: auto; pointer-events: none;
  opacity: .75; transition: opacity .5s ease;
  -webkit-mask-image: linear-gradient(to top left, #000 50%, transparent 100%);
          mask-image: linear-gradient(to top left, #000 50%, transparent 100%);
}
.cell--art:hover .cell__art { opacity: 1; }
.cta-band h2 { text-wrap: balance; }
/* La curva de pluma se dibuja al pasar el mouse */
.cell--design .art-draw { stroke-dasharray: 760; stroke-dashoffset: 0; transition: stroke-dashoffset 1.2s ease; }
.cell--design:hover .art-draw { animation: art-draw 1.4s ease; }
@keyframes art-draw { from { stroke-dashoffset: 760; } }
/* Pulsos de datos recorriendo las pistas */
.cell--tech .art-flow path { stroke-dasharray: 14 400; animation: art-flow 4s linear infinite; }
.cell--tech .art-flow path:nth-child(2) { animation-delay: -1.3s; }
.cell--tech .art-flow path:nth-child(3) { animation-delay: -2.6s; }
@keyframes art-flow { from { stroke-dashoffset: 414; } to { stroke-dashoffset: 0; } }

/* ---------- Problema ---------- */
.checklist { display: grid; border-top: 1px solid var(--color-hairline); }
.checklist li {
  display: grid; grid-template-columns: 24px 1fr; gap: var(--spacing-md);
  padding: var(--spacing-lg) 0; border-bottom: 1px solid var(--color-hairline); color: var(--color-body-strong);
}
.checklist li::before { content: "—"; color: var(--luma-lavender); }

/* ---------- Proceso ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--spacing-lg); counter-reset: step; }
.step { display: grid; gap: var(--spacing-md); align-content: start; padding-top: var(--spacing-lg); border-top: 1px solid transparent; border-image: var(--luma-gradient) 1; }
.step__num {
  font-family: var(--font-primary); font-weight: 300; font-size: 48px; line-height: 1; letter-spacing: 3px;
  background: var(--luma-gradient-text); -webkit-background-clip: text; background-clip: text; color: transparent;
  justify-self: start;
}

/* ---------- Por qué (tarjetas) ---------- */
.card {
  background: var(--color-surface-card); border-radius: var(--radius-none);
  padding: var(--spacing-lg); display: grid; gap: var(--spacing-sm); align-content: start; min-height: 180px;
  border: 1px solid transparent; transition: border-color .3s;
}
.card:hover { border-color: rgba(148,137,192,.45); }

/* ---------- Trabajo ---------- */
.work { display: grid; gap: var(--spacing-md); }
.work__photo { aspect-ratio: 16 / 10; max-width: 100%; transition: transform .6s ease, filter .6s ease; filter: brightness(.88); }
.work { overflow: hidden; }
.work:hover .work__photo { transform: scale(1.02); filter: brightness(1); }
.work__meta { display: grid; gap: var(--spacing-xs); }

/* ---------- Portafolio: pestañas ---------- */
.tabs { display: flex; gap: var(--spacing-xl); border-bottom: 1px solid var(--color-hairline); margin-bottom: var(--spacing-xl); }
.tab {
  position: relative; display: inline-flex; align-items: baseline; gap: var(--spacing-xs);
  padding: var(--spacing-md) 0; background: none; border: 0; cursor: pointer;
  font-family: var(--font-primary); font-size: 14px; letter-spacing: 2.5px; text-transform: uppercase;
  color: var(--color-muted); transition: color .2s;
}
.tab:hover { color: var(--color-body-strong); }
.tab[aria-selected="true"] { color: var(--color-on-dark); }
.tab::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 2px;
  background: var(--luma-gradient); transform: scaleX(0); transform-origin: left; transition: transform .35s ease;
}
.tab[aria-selected="true"]::after { transform: scaleX(1); }
.tab__count { font-family: var(--font-mono); font-size: 11px; letter-spacing: 1px; color: var(--color-muted-soft); }
.tab-panel { animation: panel-in .4s ease; }
@keyframes panel-in { from { opacity: 0; transform: translateY(6px); } }

/* ---------- Portafolio: carrusel de diseño ---------- */
.carousel__bar { display: flex; justify-content: space-between; align-items: center; gap: var(--spacing-md); flex-wrap: wrap; margin-bottom: var(--spacing-lg); }
.chips { display: flex; gap: var(--spacing-xs); flex-wrap: wrap; }
.chip {
  padding: 8px 16px; border: 1px solid var(--color-hairline-strong); border-radius: var(--radius-pill);
  background: transparent; color: var(--color-body); cursor: pointer;
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 2px; text-transform: uppercase;
  transition: border-color .2s, color .2s, background .2s;
}
.chip:hover { border-color: var(--color-muted); color: var(--color-on-dark); }
.chip.is-active { border-color: var(--luma-lavender); color: var(--color-on-dark); background: rgba(148,137,192,.12); }
.carousel__nav { display: flex; gap: var(--spacing-xs); }
.carousel__btn {
  width: 40px; height: 40px; border-radius: var(--radius-full);
  border: 1px solid var(--color-hairline-strong); background: transparent; color: var(--color-on-dark);
  font-size: 16px; cursor: pointer; transition: border-color .2s, background .2s, opacity .2s;
}
.carousel__btn:hover:not(:disabled) { border-color: transparent; background: var(--luma-gradient); }
.carousel__btn:disabled { opacity: .3; cursor: default; }

.carousel__track {
  /* Tira de piezas: misma altura para todas, cada una con su proporción original */
  --row-h: 380px;
  display: flex; gap: var(--spacing-md);
  overflow-x: auto; overscroll-behavior-x: contain;
  scroll-behavior: auto; /* el desplazamiento continuo lo hace app.js */
  scrollbar-width: none; padding-bottom: var(--spacing-xs);
}
.carousel__track::-webkit-scrollbar { display: none; }
.design-card {
  /* Ancho = altura × proporción, sin pasar del ancho de pantalla */
  flex: 0 0 auto;
  width: min(calc(var(--row-h) * var(--r, 1.5)), 86vw);
  display: grid; gap: var(--spacing-md); align-content: start; min-width: 0;
}
.design-card__media { aspect-ratio: var(--r, 1.5); width: 100%; max-width: 100%; overflow: hidden; background: var(--color-surface-card); }
.design-card__media img { width: 100%; height: 100%; object-fit: contain; display: block; filter: brightness(.94); transition: filter .4s ease; }
.design-card:hover .design-card__media img { filter: brightness(1); }
.design-card__meta { min-width: 0; }
.design-card__media--empty {
  display: grid; place-items: center;
  border: 1px dashed var(--color-hairline-strong);
  background-image: radial-gradient(90% 70% at 70% 15%, rgba(66,109,179,.28) 0%, rgba(23,28,53,.5) 45%, var(--color-canvas) 90%);
}
.design-card__media--empty .mono { color: var(--color-muted); }
.carousel__track.no-loop .is-clone { display: none; }
.carousel__empty { color: var(--color-muted); padding: var(--spacing-xl) 0; }

/* ---------- Confían en nosotros (logos de clientes) ---------- */
/* Sin cajas: logo alineado a la izquierda y una línea de lo que hicimos */
.clients { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); column-gap: var(--spacing-xl); row-gap: var(--spacing-xxl); }
.client { display: grid; gap: var(--spacing-lg); align-content: start; padding-top: var(--spacing-lg); border-top: 1px solid var(--color-hairline); }
.client__logo { height: 72px; display: flex; align-items: center; }
.client__logo img {
  max-height: 100%; max-width: min(100%, 260px); width: auto; height: auto;
  transition: transform .35s ease; transform-origin: left center;
}
.client--halo .client__logo img {
  /* Halo de luz suave para logos oscuros: conservan sus colores y se recortan del fondo */
  filter: drop-shadow(0 0 1px rgba(255,255,255,.55)) drop-shadow(0 0 14px rgba(255,255,255,.18));
}
.client:hover .client__logo img { transform: scale(1.04); }
.client__text { max-width: 38ch; }

/* ---------- CTA con foto ---------- */
.cta-band { position: relative; padding: 160px 0; text-align: center; overflow: hidden; }
.cta-band__photo { position: absolute; inset: 0; z-index: -1; }
.cta-band__photo::after {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(60% 80% at 20% 100%, rgba(66,109,179,.45) 0%, transparent 60%),
    radial-gradient(50% 70% at 85% 0%, rgba(148,137,192,.40) 0%, transparent 60%),
    rgba(0,0,0,.45);
}
.cta-band__content { display: grid; gap: var(--spacing-lg); justify-items: center; max-width: 820px; }

/* ---------- Contacto ---------- */
.contact-list { display: grid; width: 100%; border-top: 1px solid var(--color-hairline); margin-top: var(--spacing-md); }
.contact-list li { display: flex; justify-content: space-between; gap: var(--spacing-md); padding: var(--spacing-md) 0; border-bottom: 1px solid var(--color-hairline); color: var(--color-body-strong); }
.contact-list a:hover { color: var(--color-link); }
.form { display: grid; gap: var(--spacing-lg); background: var(--color-surface-soft); padding: var(--spacing-xl); }
.field { display: grid; gap: var(--spacing-xs); }
.field input, .field textarea {
  width: 100%; min-height: 44px; padding: 12px 0;
  background: transparent; border: 0; border-bottom: 1px solid var(--color-hairline-strong); border-radius: var(--radius-none);
  color: var(--color-on-dark); font-size: 16px; line-height: 1.5; resize: vertical;
  transition: border-color .2s;
}
.field input:focus, .field textarea:focus { outline: none; border-color: var(--luma-lavender); }
.form .btn { justify-self: start; }

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid transparent; border-image: var(--luma-gradient) 1;
  padding: var(--spacing-xxl) 0 var(--spacing-xl); color: var(--color-muted);
  /* Mismo degradado de luz que el llamado a la acción: azul abajo a la izquierda, lavanda arriba a la derecha */
  background:
    radial-gradient(60% 80% at 20% 100%, rgba(66,109,179,.45) 0%, transparent 60%),
    radial-gradient(50% 70% at 85% 0%, rgba(148,137,192,.40) 0%, transparent 60%),
    var(--color-canvas);
}
.footer__list, .footer__claim { color: var(--color-body); }
.footer__grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: var(--spacing-xl); }
.footer__grid .caption { margin-bottom: var(--spacing-md); }
.footer__claim { color: var(--color-muted); margin-top: var(--spacing-md); max-width: 320px; }
.footer__list { display: grid; gap: var(--spacing-xs); font-size: 14px; }
.footer__list a:hover { color: var(--color-on-dark); }
.footer__bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: var(--spacing-md); margin-top: var(--spacing-xxl); padding-top: var(--spacing-lg); border-top: 1px solid var(--color-hairline); }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .clients { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .carousel__track { --row-h: 320px; }
  .grid--4, .steps { grid-template-columns: repeat(2, 1fr); }
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 860px) {
  :root { --spacing-section: 80px; --gutter: 16px; }
  .display-xl { font-size: 40px; letter-spacing: 2.5px; }
  .display-lg { font-size: 32px; letter-spacing: 2px; }
  .display-md { font-size: 26px; letter-spacing: 1.5px; }

  .nav__inner { padding: 0 var(--gutter); }
  .nav__label { display: none; }
  .menu__link { font-size: 24px; grid-template-columns: 44px 1fr; }
  .hero__tagline { font-size: 17px; letter-spacing: 2px; }
  .carousel__track {
    --row-h: 280px;
    /* El carrusel llega al borde de la pantalla al deslizar */
    margin-inline: calc(var(--gutter) * -1); padding-inline: var(--gutter); scroll-padding-inline: var(--gutter);
  }
  .tabs { gap: var(--spacing-lg); }
  .hero { padding-bottom: 160px; }

  .split, .grid--2, .footer__grid { grid-template-columns: 1fr; }
  .split { gap: var(--spacing-xl); }
  .row__head { grid-template-columns: 44px 1fr 40px; }
  .row__body { padding-left: 44px; }
  .form { padding: var(--spacing-lg); }
  .cta-band { padding: 100px 0; }
}

@media (max-width: 560px) {
  .clients { grid-template-columns: 1fr; row-gap: var(--spacing-xl); }
  .client__logo { height: 60px; }
  /* Celular: una pieza y se asoma la siguiente */
  .carousel__track { --row-h: 240px; }
  .carousel__nav { display: none; }
  .chips { flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; margin-inline: calc(var(--gutter) * -1); padding-inline: var(--gutter); }
  .chip { flex-shrink: 0; }
  /* Botones con texto largo: pueden partirse en dos líneas */
  .btn { white-space: normal; height: auto; min-height: 44px; line-height: 1.3; text-align: center; max-width: 100%; }
  /* Tarjeta compacta en celular para no tapar el hero */
  .callout { left: 16px; right: 16px; width: auto; max-width: none; grid-template-columns: 1fr auto auto; align-items: center; gap: var(--spacing-sm); padding: var(--spacing-sm) var(--spacing-md); }
  .callout__thumb, .callout__text { display: none; }
  .callout__body { grid-template-columns: 1fr; padding-right: 0; }
  .callout__close { position: static; order: 3; width: 24px; height: 24px; }
  .callout__btn { padding: 8px 12px; }
  .grid--4, .grid--3, .steps { grid-template-columns: 1fr; }
  .cell { min-height: 0; }
  /* En celular la ilustración va debajo del texto, sin encimarse */
  .cell--art { min-height: 0; padding-bottom: 0; }
  .cell__art { position: relative; order: 10; width: calc(100% + var(--spacing-lg) * 2); max-width: none; margin: var(--spacing-md) calc(var(--spacing-lg) * -1) 0; }
  .contact-list li { flex-direction: column; gap: var(--spacing-xxs); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}