/* =================================================================
   ALGO MEJOR — sistema visual
   Premium · cinematográfico · oscuro. Paleta de marca exacta.
   ================================================================= */

:root {
  /* Marca (exacta) */
  --bg:            #000000;
  --surface:       #0b0b0f;
  --surface-2:     #131319;
  --brand-blue:    #2724b2;
  --brand-purple:  #7a63ff;
  --brand-green:   #58b783;
  --cream:         #f2efda;

  /* Roles de acento (auditoría UX) — mapean a la paleta oficial, no duplican */
  --accent:        var(--brand-purple);
  --accent-deep:   var(--brand-blue);
  --success:       var(--brand-green);
  --ink-on-accent: #f2efda;   /* texto sobre morado/azul */
  --focus-ring:    #8d78ff;

  /* Texto (contraste AA — auditoría P1-3) */
  --ink:           #f2efda;
  --ink-dim:       rgba(242, 239, 218, .80);
  --ink-faint:     rgba(242, 239, 218, .64);
  --line:          rgba(242, 239, 218, .14);
  --line-strong:   rgba(242, 239, 218, .26);

  /* Estados */
  --error:         #ff6b6b;
  --error-text:    #ff9a9a;
  --success-text:  #b8e6cd;
  --ink-on-green:  #04140b;

  /* Gradiente de marca */
  --grad-brand:    linear-gradient(118deg, #2724b2 0%, #7a63ff 100%);
  --grad-brand-hi: linear-gradient(118deg, #2f2cc9 0%, #8d78ff 100%);

  /* Tipografía */
  --font-display: "Saira", "Archivo", system-ui, sans-serif;
  --font-body:    "Manrope", system-ui, -apple-system, sans-serif;

  /* Escala fluida */
  --step--1: clamp(0.83rem, 0.80rem + 0.15vw, 0.92rem);
  --step-0:  clamp(1rem, 0.96rem + 0.20vw, 1.13rem);
  --step-1:  clamp(1.25rem, 1.15rem + 0.50vw, 1.55rem);
  --step-2:  clamp(1.6rem, 1.40rem + 1.0vw, 2.3rem);
  --step-3:  clamp(2.1rem, 1.70rem + 2.0vw, 3.4rem);
  --step-4:  clamp(2.6rem, 1.90rem + 3.4vw, 5rem);
  --step-5:  clamp(3rem, 2.0rem + 4.6vw, 5.75rem);

  /* Espaciado */
  --gap:        clamp(1rem, 0.8rem + 1vw, 1.5rem);
  --pad-x:      clamp(1.25rem, 0.6rem + 3.2vw, 4.5rem);
  --section-y:  clamp(4.5rem, 3rem + 7vw, 9rem);
  --maxw:       1280px;
  --readw:      68ch;
  --radius:     14px;
  --radius-lg:  22px;

  /* Z-index semántico */
  --z-nav: 100;
  --z-menu: 200;
  --z-fab: 300;
  --z-toast: 400;

  /* Motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --dur: 0.6s;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; color-scheme: dark; }
html { scroll-padding-top: 5.5rem; }

body {
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, svg, video { display: block; max-width: 100%; }
img { height: auto; }
picture { display: contents; }   /* el <img> interno hereda el layout del contenedor */
.caso__link { display: contents; color: inherit; }   /* tarjeta enlazable sin romper el grid */
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
ul, ol { list-style: none; padding: 0; }

::selection { background: var(--brand-purple); color: #fff; }

:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
  border-radius: 4px;
}

.skip-link {
  position: fixed; top: -100px; left: 1rem; z-index: 999;
  background: var(--cream); color: #000;
  padding: .7rem 1.1rem; border-radius: 8px; font-weight: 600;
  transition: top .2s var(--ease-out);
}
.skip-link:focus { top: 1rem; }

/* ---------- Tipografía utilitaria ---------- */
h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: -0.02em;
  text-wrap: balance;
}
p { text-wrap: pretty; }

.seccion__head {
  max-width: var(--readw);
  margin-bottom: clamp(2.5rem, 1.8rem + 2.5vw, 4rem);
}
.seccion__title {
  font-size: var(--step-3);
  text-transform: uppercase;
  letter-spacing: -0.015em;
}
.seccion__intro {
  margin-top: 1.1rem;
  font-size: var(--step-1);
  color: var(--ink-dim);
  line-height: 1.4;
  max-width: 52ch;
}

section { padding-inline: var(--pad-x); }

/* ---------- Botones ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: .55rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--step--1);
  letter-spacing: .04em;
  text-transform: uppercase;
  padding: .85em 1.5em;
  border-radius: 999px;
  border: 1.5px solid transparent;
  transition: transform .25s var(--ease-out), box-shadow .25s var(--ease-out),
              background .25s var(--ease-out), border-color .25s var(--ease-out);
  white-space: nowrap;
}
.btn--lg { font-size: var(--step-0); padding: 1em 1.8em; }

.btn--primary {
  background-image: var(--grad-brand);
  color: #fff;
  box-shadow: 0 6px 24px -8px rgba(122, 99, 255, .6);
}
.btn--primary:hover {
  background-image: var(--grad-brand-hi);
  transform: translateY(-2px);
  box-shadow: 0 14px 34px -10px rgba(122, 99, 255, .75);
}
.btn--primary:active { transform: translateY(0); }

.btn--ghost {
  background: transparent;
  color: var(--cream);
  border-color: var(--line-strong);
  backdrop-filter: blur(6px);
}
.btn--ghost:hover {
  border-color: var(--brand-green);
  color: #fff;
  transform: translateY(-2px);
}
.ico-wa { width: 1.2em; height: 1.2em; color: var(--brand-green); }
.btn--primary .ico-wa { color: #fff; }

/* =================================================================
   NAV
   ================================================================= */
.nav {
  position: fixed; inset: 0 0 auto 0;
  z-index: var(--z-nav);
  transition: background .35s var(--ease-out), border-color .35s var(--ease-out),
              backdrop-filter .35s var(--ease-out);
  border-bottom: 1px solid transparent;
}
.nav.is-stuck {
  background: rgba(0, 0, 0, .72);
  backdrop-filter: blur(14px) saturate(140%);
  border-bottom-color: var(--line);
}
.nav__inner {
  max-width: var(--maxw); margin-inline: auto;
  display: flex; align-items: center; gap: var(--gap);
  padding: clamp(.85rem, .6rem + .8vw, 1.3rem) var(--pad-x);
}

.brand { display: inline-flex; align-items: center; color: var(--cream); }
/* Logo real de la marca, pintado en crema vía máscara (forma exacta del PNG) */
.brand__logo {
  display: block;
  height: 2.9rem;
  aspect-ratio: 1224 / 692;
  background-color: var(--cream);
  -webkit-mask: url("../assets/logo/algo-mejor-lockup.png") left center / contain no-repeat;
          mask: url("../assets/logo/algo-mejor-lockup.png") left center / contain no-repeat;
  transition: background-color .25s var(--ease-out);
}
.brand:hover .brand__logo { background-color: #ffffff; }

.nav__links {
  display: flex; gap: clamp(1.2rem, .5rem + 1.6vw, 2.4rem);
  margin-left: auto;
  font-weight: 600; font-size: var(--step--1);
}
.nav__links a {
  color: var(--ink-dim); position: relative; padding: .3rem 0;
  transition: color .2s var(--ease-out);
}
.nav__links a::after {
  content: ""; position: absolute; left: 0; right: 100%; bottom: -2px; height: 2px;
  background: var(--grad-brand); transition: right .3s var(--ease-out);
}
.nav__links a:hover { color: var(--cream); }
.nav__links a:hover::after { right: 0; }

.nav__cta { flex: none; }

/* Toggle de idioma */
.lang-toggle {
  flex: none;
  font-family: var(--font-display); font-weight: 700;
  font-size: var(--step--1); letter-spacing: .08em;
  color: var(--ink-dim);
  border: 1.5px solid var(--line-strong);
  border-radius: 999px; padding: .45em .8em;
  transition: color .2s var(--ease-out), border-color .2s var(--ease-out);
}
.lang-toggle:hover { color: var(--cream); border-color: var(--brand-purple); }
.menu-movil__lang {
  text-align: center; color: var(--ink-dim); font-weight: 600;
  padding: .6rem; letter-spacing: .03em;
}
.menu-movil__lang:hover { color: var(--cream); }

.nav__toggle {
  display: none;
  width: 44px; height: 44px; margin-left: auto;
  background: transparent; border: 0;
  flex-direction: column; justify-content: center; gap: 5px; align-items: center;
}
.nav__toggle span {
  width: 24px; height: 2px; background: var(--cream); border-radius: 2px;
  transition: transform .3s var(--ease-out), opacity .2s var(--ease-out);
}
.nav__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Menú móvil */
.menu-movil {
  position: fixed; inset: 0; z-index: var(--z-menu);
  background: rgba(0,0,0,.96); backdrop-filter: blur(12px);
  display: flex; flex-direction: column; justify-content: center;
  gap: 1.5rem; padding: 6rem var(--pad-x) 3rem;
  opacity: 0; pointer-events: none;
  transition: opacity .3s var(--ease-out);
}
.menu-movil.is-open { opacity: 1; pointer-events: auto; }
.menu-movil[hidden] { display: none; }
.menu-movil nav { display: flex; flex-direction: column; gap: 1.1rem; }
.menu-movil nav a {
  font-family: var(--font-display); font-weight: 800;
  font-size: clamp(2rem, 1.4rem + 3vw, 3rem);
  text-transform: uppercase; letter-spacing: -0.01em;
  color: var(--cream);
}
.menu-movil .btn { width: 100%; }

/* =================================================================
   HERO
   ================================================================= */
.hero {
  position: relative; isolation: isolate;
  min-height: 100svh;
  display: grid; align-items: end;
  padding: 8rem var(--pad-x) clamp(3.5rem, 2rem + 5vw, 6rem);
  overflow: hidden;
}
.hero__media { position: absolute; inset: 0; z-index: -2; }
.hero__carousel { position: absolute; inset: 0; }
.hero__slide {
  position: absolute; inset: 0;
  opacity: 0; transition: opacity 1.4s var(--ease-out);
}
.hero__slide.is-active { opacity: 1; }
.hero__slide img {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
  filter: saturate(1.05) contrast(1.02); transform: scale(1.04);
}
.hero__slide.is-active img { animation: heroKenBurns 7.5s var(--ease-out) forwards; }
@keyframes heroKenBurns { from { transform: scale(1.04); } to { transform: scale(1.13); } }
@media (prefers-reduced-motion: reduce) {
  .hero__slide.is-active img { animation: none; transform: scale(1.04); }
}
.hero__scrim {
  position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(120% 90% at 75% 15%, rgba(39,36,178,.35) 0%, transparent 55%),
    linear-gradient(180deg, rgba(0,0,0,.55) 0%, rgba(0,0,0,.25) 38%, rgba(0,0,0,.85) 100%);
}

.hero__content { max-width: min(92vw, 54rem); }
.hero__kicker {
  font-family: var(--font-display); font-weight: 600;
  text-transform: uppercase; letter-spacing: .22em;
  font-size: var(--step--1); color: var(--ink-dim);
  margin-bottom: 1.4rem;
}
.hero__title {
  font-size: var(--step-5);
  text-transform: uppercase;
  letter-spacing: -0.025em;
  max-width: 15ch;
}
.hero__sub {
  margin-top: 1.6rem; max-width: 46ch;
  font-size: var(--step-1); line-height: 1.45; color: var(--cream);
  text-shadow: 0 1px 20px rgba(0,0,0,.5);
}
.hero__actions { margin-top: 2.4rem; display: flex; flex-wrap: wrap; gap: 1rem; }

.hero__scroll {
  position: absolute; bottom: 1.6rem; left: 50%; transform: translateX(-50%);
  width: 26px; height: 42px; border: 2px solid var(--line-strong);
  border-radius: 999px; display: grid; place-items: start center; padding-top: 7px;
}
.hero__scroll span {
  width: 4px; height: 8px; border-radius: 4px; background: var(--cream);
  animation: scrolldot 1.8s var(--ease-out) infinite;
}
@keyframes scrolldot { 0% { opacity: 0; transform: translateY(0); } 40% { opacity: 1; } 80%,100% { opacity: 0; transform: translateY(12px); } }

/* =================================================================
   PRUEBA SOCIAL
   ================================================================= */
.prueba {
  border-block: 1px solid var(--line);
  padding-block: clamp(2.5rem, 1.8rem + 2.5vw, 4rem);
  text-align: center;
}
.prueba__lead {
  text-transform: uppercase; letter-spacing: .18em;
  font-size: var(--step--1); color: var(--ink-faint);
  font-weight: 600;
}
.prueba__artistas {
  display: flex; flex-wrap: wrap; justify-content: center; align-items: center;
  gap: clamp(.8rem, .3rem + 1.5vw, 1.8rem);
  margin-top: 1.4rem;
  font-family: var(--font-display); font-weight: 800;
  text-transform: uppercase; letter-spacing: -0.01em;
  font-size: clamp(1.5rem, 1rem + 2.4vw, 2.6rem);
  color: var(--cream);
}
.prueba__artistas .dot { color: var(--brand-purple); font-weight: 400; }
.prueba__marcas {
  display: flex; flex-wrap: wrap; justify-content: center;
  gap: clamp(1.2rem, .5rem + 2vw, 3rem);
  margin-top: 1.8rem;
  font-weight: 600; letter-spacing: .05em;
  color: var(--ink-faint);
  text-transform: uppercase; font-size: var(--step--1);
}

/* =================================================================
   SELECTED WORK
   ================================================================= */
.trabajo { padding-block: var(--section-y); max-width: var(--maxw); margin-inline: auto; }

.casos {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(1.2rem, .6rem + 2vw, 2.4rem);
}
.caso--xl { grid-column: 1 / -1; }

.caso {
  position: relative; isolation: isolate;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--line);
  min-height: 340px;
  display: flex; align-items: flex-end;
}
.caso--xl { min-height: clamp(380px, 50vh, 560px); }

.caso__media { position: absolute; inset: 0; z-index: -2; }
.caso__media img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .9s var(--ease-out), filter .6s var(--ease-out);
  filter: saturate(.92);
}
.caso::after {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(180deg, rgba(0,0,0,.05) 0%, rgba(0,0,0,.45) 55%, rgba(0,0,0,.92) 100%);
}
.caso:hover .caso__media img { transform: scale(1.05); filter: saturate(1.05); }

.caso__body { padding: clamp(1.4rem, 1rem + 1.5vw, 2.4rem); width: 100%; }
.caso__rol {
  display: inline-block;
  font-family: var(--font-display); font-weight: 700;
  text-transform: uppercase; letter-spacing: .08em; font-size: var(--step--1);
  color: var(--cream);
  background: rgba(122,99,255,.22);
  border: 1px solid rgba(122,99,255,.45);
  padding: .35em .8em; border-radius: 999px;
  margin-bottom: .9rem;
}
.caso__nombre { font-size: var(--step-2); text-transform: uppercase; }
.caso--xl .caso__nombre { font-size: var(--step-3); }
.caso__desc { margin-top: .6rem; color: var(--ink-dim); max-width: 46ch; }
.caso__stats {
  display: flex; flex-wrap: wrap; gap: clamp(1.2rem, .6rem + 1.5vw, 2.5rem);
  margin-top: 1.4rem; padding-top: 1.2rem; border-top: 1px solid var(--line);
}
.caso__stats dt { font-size: .72rem; text-transform: uppercase; letter-spacing: .12em; color: var(--ink-faint); }
.caso__stats dd {
  font-family: var(--font-display); font-weight: 800; font-size: var(--step-1);
  color: var(--cream); margin-top: .1rem;
}

/* =================================================================
   SERVICIOS
   ================================================================= */
.servicios {
  padding-block: var(--section-y);
  max-width: var(--maxw); margin-inline: auto;
}
.serv {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  gap: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.serv__item {
  padding: clamp(1.6rem, 1.2rem + 1.5vw, 2.6rem);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  position: relative;
  transition: background .35s var(--ease-out);
  background: var(--surface);
}
.serv__item::before {
  content: ""; position: absolute; inset: 0;
  background: var(--grad-brand); opacity: 0;
  transition: opacity .4s var(--ease-out); z-index: 0;
}
.serv__item > * { position: relative; z-index: 1; }
.serv__item:hover { }
.serv__item:hover::before { opacity: .14; }
.serv__title {
  font-size: var(--step-1); text-transform: uppercase;
  margin-bottom: .7rem;
}
.serv__desc { color: var(--ink-dim); }
.serv__item--cta { background: var(--surface-2); }
.serv__item--cta::before { opacity: .12; }
.serv__link {
  display: inline-block; margin-top: .55rem; padding: .6rem 0;
  font-family: var(--font-display); font-weight: 700;
  text-transform: uppercase; letter-spacing: .04em; font-size: var(--step--1);
  color: var(--brand-purple);
  transition: color .2s var(--ease-out), transform .2s var(--ease-out);
}
.serv__link:hover { color: var(--cream); transform: translateX(3px); }

/* =================================================================
   TESTIMONIOS
   ================================================================= */
.testimonios {
  padding-block: var(--section-y);
  max-width: var(--maxw); margin-inline: auto;
}
.quotes {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(1.2rem, .6rem + 2vw, 2rem);
}
.quote {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: clamp(1.6rem, 1.2rem + 1.5vw, 2.6rem);
  display: flex; flex-direction: column; gap: 1.2rem;
}
.quote__stars { color: var(--brand-green); letter-spacing: .15em; font-size: 1.1rem; }
.quote blockquote {
  font-family: var(--font-display); font-weight: 600;
  font-size: var(--step-1); line-height: 1.3; color: var(--cream);
  letter-spacing: -0.01em;
}
.quote figcaption { margin-top: auto; display: flex; flex-direction: column; }
.quote__name { font-weight: 700; }
.quote__role { color: var(--ink-faint); font-size: var(--step--1); }

/* =================================================================
   NOSOTROS
   ================================================================= */
.nosotros {
  padding-block: var(--section-y);
  max-width: var(--maxw); margin-inline: auto;
  display: grid; grid-template-columns: 1fr 1fr;
  gap: clamp(1.5rem, .8rem + 3vw, 4rem); align-items: center;
}
.nosotros__media { border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--line); }
.nosotros__media img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4 / 3; }
.nosotros__body p { color: var(--ink-dim); margin-top: 1.1rem; max-width: 52ch; }
.nosotros__body .seccion__title { font-size: var(--step-3); text-transform: uppercase; }
.nosotros__stats {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: clamp(1rem, .6rem + 1.2vw, 2rem);
  margin-top: 2rem; padding-top: 1.6rem; border-top: 1px solid var(--line);
}
.nosotros__stats li { display: flex; flex-direction: column; }
.nosotros__stats strong {
  font-family: var(--font-display); font-weight: 900;
  font-size: var(--step-3); line-height: 1;
  color: var(--brand-purple);
}
.nosotros__stats span { color: var(--ink-faint); font-size: var(--step--1); margin-top: .3rem; }

/* =================================================================
   CONTACTO
   ================================================================= */
.contacto {
  padding-block: var(--section-y);
  max-width: var(--maxw); margin-inline: auto;
  display: grid; grid-template-columns: 0.85fr 1.15fr;
  gap: clamp(2rem, 1rem + 4vw, 5rem); align-items: start;
}
.contacto__title { font-size: var(--step-3); text-transform: uppercase; letter-spacing: -0.02em; }
.contacto__intro p { margin: 1.3rem 0 2rem; color: var(--ink-dim); max-width: 42ch; }

.form {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 1.1rem 1.2rem;
}
.field { display: flex; flex-direction: column; gap: .45rem; }
.field--full { grid-column: 1 / -1; }
/* Honeypot anti-spam: invisible pero presente (la CSP bloquea estilos inline) */
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; opacity: 0; pointer-events: none; }
.field label {
  font-size: var(--step--1); font-weight: 600;
  letter-spacing: .03em; color: var(--ink-dim);
}
.field input, .field select, .field textarea {
  font: inherit; font-size: var(--step-0);
  color: var(--cream);
  background: var(--bg);
  border: 1.5px solid var(--line-strong);
  border-radius: 10px;
  padding: .8em .9em;
  transition: border-color .2s var(--ease-out), box-shadow .2s var(--ease-out);
  width: 100%;
  color-scheme: dark; /* fecha/select nativos en oscuro (evita la caja blanca) */
}
.field input[type="date"]::-webkit-calendar-picker-indicator {
  filter: invert(.85); opacity: .75; cursor: pointer;
}
.field input[type="date"]::-webkit-calendar-picker-indicator:hover { opacity: 1; }
.field textarea { resize: vertical; min-height: 6em; }
.field input::placeholder, .field textarea::placeholder { color: var(--ink-faint); }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--brand-purple);
  box-shadow: 0 0 0 3px rgba(122,99,255,.25);
}
.field select { appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%23f2efda' stroke-width='2.5'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right .9em center; padding-right: 2.4em;
}
.field input[aria-invalid="true"], .field select[aria-invalid="true"] {
  border-color: var(--error); box-shadow: 0 0 0 3px color-mix(in srgb, var(--error) 22%, transparent);
}
.field .err { color: var(--error-text); font-size: var(--step--1); }

.form__foot { display: flex; align-items: center; gap: 1.2rem; flex-wrap: wrap; margin-top: .4rem; }
.form__nota { color: var(--ink-faint); font-size: var(--step--1); }
.form__status {
  grid-column: 1 / -1; margin-top: .2rem;
  padding: .9em 1.1em; border-radius: 10px;
  font-weight: 600; font-size: var(--step--1);
}
.form__status.is-ok {
  background: color-mix(in srgb, var(--brand-green) 16%, transparent);
  border: 1px solid color-mix(in srgb, var(--brand-green) 50%, transparent);
  color: var(--success-text);
}
.form__status.is-err {
  background: color-mix(in srgb, var(--error) 14%, transparent);
  border: 1px solid color-mix(in srgb, var(--error) 45%, transparent);
  color: var(--error-text);
}

/* =================================================================
   FOOTER
   ================================================================= */
.footer {
  border-top: 1px solid var(--line);
  padding: clamp(2.2rem, 1.6rem + 2vw, 3.4rem) var(--pad-x) 1.4rem;
}
.footer__grid {
  max-width: var(--maxw); margin-inline: auto;
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.05fr;
  gap: clamp(1.6rem, 1rem + 2.5vw, 3.2rem); align-items: start;
}
.brand--footer .brand__logo { height: 3rem; }
.footer__brand { display: flex; flex-direction: column; align-items: flex-start; gap: .9rem; max-width: 30ch; }
.footer__tagline { color: var(--ink-dim); font-size: .8rem; line-height: 1.45; }
.footer__mail {
  font-family: var(--font-display); font-weight: 700; font-size: .9rem; color: var(--cream);
  word-break: break-word;
}
.footer__mail:hover { color: var(--brand-purple); }
.footer__wa:hover { color: var(--brand-green); }

.footer__col h3 {
  font-family: var(--font-display); font-size: .68rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: .1em; color: var(--ink-dim); margin-bottom: .6rem;
}
.footer__col ul { display: grid; gap: 0; }
.footer__col a {
  color: var(--ink-dim); font-size: .8rem; display: inline-block; padding: .34rem 0; line-height: 1.15;
  transition: color .2s var(--ease-out);
}
.footer__col a:hover { color: var(--cream); }

@media (max-width: 820px) {
  .footer__grid { grid-template-columns: 1fr 1fr; gap: 1.8rem 1.5rem; }
  .footer__brand, .footer__contact-col { grid-column: 1 / -1; }
}
.footer__legal {
  max-width: var(--maxw); margin: clamp(2rem,1.5rem+2vw,3rem) auto 0;
  padding-top: 1.3rem; border-top: 1px solid var(--line);
  display: flex; flex-wrap: wrap; gap: .6rem 1.5rem; justify-content: space-between;
  color: var(--ink-faint); font-size: var(--step--1);
}
.footer__legal a { display: inline-block; padding: .35rem 0; }
.footer__legal a:hover { color: var(--cream); }

/* =================================================================
   WHATSAPP FAB
   ================================================================= */
.wa-fab {
  position: fixed; z-index: var(--z-fab);
  right: clamp(1rem, .5rem + 1.5vw, 1.8rem);
  bottom: clamp(1rem, .5rem + 1.5vw, 1.8rem);
  width: 56px; height: 56px; border-radius: 50%;
  background: var(--brand-green); color: var(--ink-on-green);
  display: grid; place-items: center;
  box-shadow: 0 10px 30px -8px rgba(88,183,131,.6);
  transition: transform .3s var(--ease-out), box-shadow .3s var(--ease-out);
}
.wa-fab svg { width: 30px; height: 30px; }
.wa-fab:hover { transform: scale(1.08) translateY(-2px); box-shadow: 0 16px 36px -8px rgba(88,183,131,.75); }
.wa-fab::after {
  content: ""; position: absolute; inset: 0; border-radius: 50%;
  border: 2px solid var(--brand-green); opacity: .6;
  animation: pulse 2.4s ease-out infinite;
}
@keyframes pulse { 0% { transform: scale(1); opacity: .6; } 70%,100% { transform: scale(1.6); opacity: 0; } }

/* =================================================================
   REVEAL (entrada al hacer scroll)
   ================================================================= */
[data-reveal] { opacity: 0; transform: translateY(28px); transition: opacity .7s var(--ease-out), transform .7s var(--ease-out); }
[data-reveal].is-in { opacity: 1; transform: none; }
[data-reveal-stagger] > * { opacity: 0; transform: translateY(22px); transition: opacity .6s var(--ease-out), transform .6s var(--ease-out); }
[data-reveal-stagger].is-in > * { opacity: 1; transform: none; }
[data-reveal-stagger].is-in > *:nth-child(2) { transition-delay: .08s; }
[data-reveal-stagger].is-in > *:nth-child(3) { transition-delay: .16s; }
[data-reveal-stagger].is-in > *:nth-child(4) { transition-delay: .24s; }
[data-reveal-stagger].is-in > *:nth-child(5) { transition-delay: .32s; }

/* =================================================================
   RESPONSIVE
   ================================================================= */
@media (max-width: 920px) {
  .nav__links, .nav__cta, .lang-toggle { display: none; }
  .nav__toggle { display: flex; }
  .nosotros { grid-template-columns: 1fr; }
  .nosotros__media { order: -1; }
  .contacto { grid-template-columns: 1fr; }
}

@media (max-width: 680px) {
  .casos { grid-template-columns: 1fr; }
  .quotes { grid-template-columns: 1fr; }
  .form { grid-template-columns: 1fr; }
  .hero { padding-top: 7rem; }
  .hero__content { max-width: none; }
  .btn { width: 100%; }
  .hero__actions .btn, .menu-movil .btn { width: 100%; }
  .serv__item { border-right: none; }
}

/* =================================================================
   REDUCED MOTION
   ================================================================= */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  [data-reveal], [data-reveal-stagger] > * { opacity: 1 !important; transform: none !important; }
  .hero__scroll span { animation: none; opacity: .8; }
  .wa-fab::after { display: none; }
}

/* =================================================================
   CASE STUDY (página de detalle /casos/ · /en/work/)
   ================================================================= */
.caso-detalle {
  max-width: var(--maxw); margin-inline: auto;
  padding-block: clamp(7rem, 5rem + 6vw, 10rem) var(--section-y);
}
.breadcrumb {
  display: flex; flex-wrap: wrap; align-items: center; gap: .5rem;
  font-size: var(--step--1); color: var(--ink-faint); margin-bottom: 1.6rem;
}
.breadcrumb a { color: var(--ink-dim); }
.breadcrumb a:hover { color: var(--cream); text-decoration: underline; }
.breadcrumb [aria-current="page"] { color: var(--ink-faint); }
.caso-detalle__head .hero__kicker { margin-bottom: .6rem; }
.caso-detalle__head .seccion__title { font-size: var(--step-4); }
.caso-detalle__media {
  margin: clamp(1.6rem, 1rem + 2vw, 2.6rem) 0;
  border-radius: var(--radius-lg); overflow: hidden; background: var(--surface-2);
}
.caso-detalle__media img { width: 100%; aspect-ratio: 3 / 2; object-fit: cover; }
.caso-detalle__stats { max-width: 640px; }
.caso-detalle__body {
  max-width: var(--readw); margin-top: clamp(1.4rem, 1rem + 1.5vw, 2.2rem);
  font-size: var(--step-1); color: var(--ink-dim); line-height: 1.5;
}
.caso-detalle__cta {
  display: flex; flex-wrap: wrap; align-items: center; gap: 1.2rem 1.8rem;
  margin-top: clamp(2rem, 1.4rem + 2vw, 3rem);
}
.caso-detalle__back { color: var(--ink-dim); font-weight: 600; }
.caso-detalle__back:hover { color: var(--cream); }

/* =================================================================
   LANDING (servicios / dónde) + footer sitemap
   ================================================================= */
.landing {
  max-width: var(--maxw); margin-inline: auto;
  padding-block: clamp(7rem, 5rem + 6vw, 10rem) var(--section-y);
}
.landing__head { max-width: var(--readw); }
.landing__head .seccion__title { font-size: var(--step-4); margin-top: .4rem; }
.landing__intro { margin-top: 1.1rem; font-size: var(--step-1); color: var(--ink-dim); line-height: 1.4; }
.landing__body {
  max-width: var(--readw); margin-top: clamp(1.6rem, 1rem + 2vw, 2.6rem);
  display: grid; gap: 1.1rem; font-size: var(--step-0); color: var(--ink-dim);
}
.landing__bullets { display: grid; gap: .6rem; margin-top: .8rem; }
.landing__bullets li { position: relative; padding-left: 1.5rem; color: var(--ink); }
.landing__bullets li::before {
  content: ""; position: absolute; left: 0; top: .62em;
  width: .5rem; height: .5rem; border-radius: 2px; background: var(--grad-brand);
}
.landing__related {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 2rem;
  margin-top: clamp(3rem, 2rem + 3vw, 5rem); padding-top: 2.5rem; border-top: 1px solid var(--line);
}
.landing__related-title {
  font-size: var(--step--1); text-transform: uppercase; letter-spacing: .08em;
  color: var(--ink-faint); margin-bottom: 1rem;
}
.landing__related ul { display: grid; gap: .6rem; }
.landing__related a { color: var(--ink-dim); }
.landing__related a:hover { color: var(--cream); text-decoration: underline; }

/* =================================================================
   VIDEO en trabajos (case studies + badge en tarjetas)
   ================================================================= */
.caso-video,
.caso-video-embed,
.caso-video-facade {
  width: 100%; aspect-ratio: 16 / 9; display: block;
  border-radius: var(--radius-lg); overflow: hidden; background: #000;
}
.caso-video { object-fit: cover; }
.caso-video-embed iframe { width: 100%; height: 100%; border: 0; display: block; }

.caso-video-facade { position: relative; padding: 0; border: 0; cursor: pointer; }
.caso-video-facade img {
  width: 100%; height: 100%; object-fit: cover; display: block;
  opacity: .92; transition: opacity .3s var(--ease-out), transform .6s var(--ease-out);
}
.caso-video-facade:hover img { opacity: 1; transform: scale(1.03); }
.caso-video-facade__play {
  position: absolute; inset: 0; margin: auto;
  width: clamp(4rem, 3rem + 4vw, 5.5rem); height: clamp(4rem, 3rem + 4vw, 5.5rem);
  border-radius: 50%; background: var(--grad-brand); display: grid; place-items: center;
  box-shadow: 0 10px 34px rgba(0,0,0,.45); transition: transform .3s var(--ease-out);
}
.caso-video-facade:hover .caso-video-facade__play { transform: scale(1.08); }
.caso-video-facade__play::before {
  content: ""; width: 0; height: 0; margin-left: .35rem;
  border-style: solid; border-width: .85rem 0 .85rem 1.45rem;
  border-color: transparent transparent transparent var(--cream);
}
.caso-video-facade:focus-visible { outline: 2px solid var(--focus-ring); outline-offset: 3px; }

.caso__play {
  position: absolute; top: 1rem; left: 1rem; z-index: 2; pointer-events: none;
  width: 2.9rem; height: 2.9rem; border-radius: 50%;
  background: rgba(0,0,0,.5); backdrop-filter: blur(5px);
  border: 1px solid rgba(242,239,218,.28); display: grid; place-items: center;
}
.caso__play::before {
  content: ""; width: 0; height: 0; margin-left: .22rem;
  border-style: solid; border-width: .5rem 0 .5rem .82rem;
  border-color: transparent transparent transparent var(--cream);
}