/* ==========================================================================
   ZAV Flooring LLC — Hoja de estilos
   Diseño editorial premium · Atlanta, GA
   Paleta tomada del logotipo: crema #f5efea / marrón #2d1e17
   ========================================================================== */

/* ---------- 1. Tokens ---------- */
:root {
  --ink:        #141414;   /* negro de marca               */
  --brown:      #141414;   /* superficies oscuras          */
  --brown-soft: #3a3a38;
  --cream:      #fbfbfb;   /* blanco de marca              */
  --paper:      #fbfbfb;   /* fondo base                   */
  --paper-2:    #f4f3f0;
  --sand:       #efeee9;   /* bloques suaves               */
  --line:       #e3e1db;   /* bordes finos                 */
  --accent:     #8a8175;   /* taupe cálido (único acento)  */
  --accent-deep:#6c645a;
  --hi:         #cec6b8;   /* resalte claro sobre negro    */
  --muted:      #6f6c66;   /* texto secundario             */

  --font-display: "Cormorant Garamond", "Playfair Display", Georgia, serif;
  --font-body:    "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  --maxw: 1240px;
  --gutter: clamp(20px, 5vw, 64px);
  --radius: 2px;

  --ease: cubic-bezier(.22,.61,.36,1);
  --reveal-y: 34px;
}

/* ---------- 2. Reset / base ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  font-size: clamp(15px, 1.02vw, 17px);
  line-height: 1.7;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

body.intro-lock { overflow: hidden; height: 100vh; }

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

a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 {
  font-family: var(--font-body);   /* Inter — tipografía principal */
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -.02em;
  margin: 0;
  color: var(--brown);
}

/* Cormorant Garamond — sólo como acento de destaque */
.accent-serif {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 500;
  font-size: 1.14em;   /* compensa la menor altura-x de Cormorant */
  letter-spacing: 0;
}

p { margin: 0 0 1.1em; }

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

/* ---------- 3. Utilidades tipográficas ---------- */
.eyebrow {
  font-family: var(--font-body);
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--accent-deep);
  display: inline-flex;
  align-items: center;
  gap: .8em;
  margin: 0 0 1.4rem;
}
.eyebrow::before { display: none; }

.display-xl { font-size: clamp(2.2rem, 4.7vw, 4.2rem); line-height: 1.08; }
.display-lg { font-size: clamp(2.3rem, 5vw, 4rem); }
.display-md { font-size: clamp(1.8rem, 3vw, 2.7rem); }

.lead { font-size: clamp(1.05rem, 1.4vw, 1.3rem); color: var(--brown-soft); line-height: 1.6; }
.muted { color: var(--muted); }

/* ---------- 4. Layout ---------- */
.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }
.section { padding-block: clamp(72px, 11vw, 150px); }
.section--tight { padding-block: clamp(56px, 8vw, 104px); }
.section--sand { background: var(--sand); }
.section--ink  { background: var(--brown); color: var(--cream); }
.section--ink h2, .section--ink h3 { color: var(--cream); }
.section--ink .eyebrow { color: var(--hi); }
.section--ink .eyebrow::before { background: var(--hi); }
.section--ink .lead { color: rgba(251,251,251,.82); }

.grid { display: grid; gap: clamp(28px, 4vw, 64px); }
.section-head { max-width: 760px; margin-bottom: clamp(40px, 6vw, 72px); }
.section-head p { margin-top: 1.2rem; }

/* ---------- 5. Botones ---------- */
.btn {
  --bg: var(--brown);
  --fg: var(--cream);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .6em;
  font-family: var(--font-body);
  font-size: .82rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: 1.05em 2em;
  background: var(--bg);
  color: var(--fg);
  border: 1px solid var(--bg);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background .35s var(--ease), color .35s var(--ease),
              border-color .35s var(--ease), transform .35s var(--ease);
}
.btn:hover { transform: translateY(-2px); }
.btn--solid:hover { --bg: var(--accent-deep); }
.btn--ghost { --bg: transparent; --fg: var(--brown); border-color: var(--line); }
.btn--ghost:hover { --bg: var(--brown); --fg: var(--cream); border-color: var(--brown); }
.btn--light { --bg: var(--cream); --fg: var(--brown); }
.btn--light:hover { --bg: #fff; }
.btn--onink-ghost { --bg: transparent; --fg: var(--cream); border-color: rgba(245,239,234,.35); }
.btn--onink-ghost:hover { --bg: var(--cream); --fg: var(--brown); border-color: var(--cream); }
.btn .ar { transition: transform .35s var(--ease); }
.btn:hover .ar { transform: translateX(4px); }

.textlink {
  display: inline-flex;
  align-items: center;
  gap: .5em;
  font-weight: 600;
  font-size: .82rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--accent-deep);
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: border-color .3s var(--ease), gap .3s var(--ease);
}
.textlink:hover { border-color: var(--accent); gap: .8em; }

/* ==========================================================================
   6. INTRO — animación del logotipo
   ========================================================================== */
.intro {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  background: var(--paper);
  transition: opacity .8s var(--ease), visibility .8s var(--ease);
}
.intro.is-done { opacity: 0; visibility: hidden; pointer-events: none; }

.intro__logo { width: min(62vw, 460px); height: auto; overflow: visible; }

/* Emblema ZAV: cae desde arriba con rebote */
#introMark {
  opacity: 0;
  transform-box: fill-box;
  transform-origin: center bottom;
  transform: translateY(-64px) scale(.98);
  animation: mark-drop .58s cubic-bezier(.18,1.24,.4,1) .30s forwards;
}
/* FLOORING: aparece con brillo de centro a lados */
#introWord {
  opacity: 0;
  transform-box: fill-box;
  transform-origin: center;
  clip-path: inset(0 50% 0 50%);
  animation: word-glow .55s var(--ease) .96s forwards;
}

.intro__skip {
  position: absolute;
  bottom: clamp(22px, 5vh, 46px);
  left: 50%;
  transform: translateX(-50%);
  background: none;
  border: 0;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: .68rem;
  font-weight: 600;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--muted);
  opacity: 0;
  animation: fade-in .5s ease 1.4s forwards;
  transition: color .3s;
}
.intro__skip:hover { color: var(--brown); }

@keyframes mark-drop {
  0%   { opacity: 0; transform: translateY(-64px) scale(.98); }
  70%  { opacity: 1; }
  100% { opacity: 1; transform: translateY(0) scale(1); }
}
@keyframes word-glow {
  0%   { opacity: 0; clip-path: inset(0 50% 0 50%); filter: brightness(2.2); }
  60%  { opacity: 1; filter: brightness(1.35); }
  100% { opacity: 1; clip-path: inset(0 0 0 0); filter: brightness(1); }
}
@keyframes fade-in { to { opacity: 1; } }

/* ==========================================================================
   7. HEADER / NAV
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 900;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: .9rem var(--gutter);
  background: transparent;
  transition: background .4s var(--ease), padding .4s var(--ease),
              box-shadow .4s var(--ease), transform .5s var(--ease);
}
.site-header.is-hidden { transform: translateY(-102%); }
/* Fondo claro en cuanto se hace scroll (todas las páginas, home incluida) */
.site-header.is-scrolled {
  padding-block: .7rem;
  background: rgba(251,251,251,.92);
  backdrop-filter: saturate(150%) blur(14px);
  -webkit-backdrop-filter: saturate(150%) blur(14px);
  box-shadow: 0 1px 0 var(--line);
}
/* Home en la parte superior (sobre el hero oscuro): transparente y texto/logo claros.
   Al hacer scroll deja de cumplirse :not(.is-scrolled) y vuelve al estilo legible. */
.site-header--overlay:not(.is-scrolled) { background: transparent; box-shadow: none; }
.site-header--overlay:not(.is-scrolled) .nav__link { color: #fff; }
.site-header--overlay:not(.is-scrolled) .nav-toggle span { background: #fff; }
.site-header--overlay:not(.is-scrolled) .brand img { filter: invert(1) brightness(2.2); }
.brand { display: flex; align-items: center; }
.brand img { height: 102px; width: auto; transition: height .4s var(--ease); }
.is-scrolled .brand img { height: 70px; }

.nav { display: flex; align-items: center; gap: clamp(1rem, 2vw, 2.1rem); }
.nav__link {
  font-size: .82rem;
  font-weight: 500;
  letter-spacing: .04em;
  color: var(--brown);
  position: relative;
  padding: 4px 0;
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .35s var(--ease);
}
.nav__link:hover::after,
.nav__link.is-active::after { transform: scaleX(1); }
.nav__cta { margin-left: .4rem; padding: .85em 1.5em; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 42px; height: 42px;
  align-items: center; justify-content: center;
  background: none; border: 0; cursor: pointer;
}
.nav-toggle span { width: 24px; height: 1.6px; background: var(--brown); transition: transform .35s var(--ease), opacity .3s; }
.nav-open .nav-toggle span:nth-child(1) { transform: translateY(6.6px) rotate(45deg); }
.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-6.6px) rotate(-45deg); }

/* ---------- Page hero (interior pages) ---------- */
.page-hero {
  padding-top: clamp(140px, 20vh, 220px);
  padding-bottom: clamp(40px, 6vw, 76px);
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}
.page-hero .breadcrumb {
  font-size: .72rem; letter-spacing: .16em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 1.4rem;
}
.page-hero .breadcrumb a { color: var(--accent-deep); }
.page-hero .breadcrumb a:hover { color: var(--ink); }
.page-hero h1 { font-size: clamp(2.4rem, 6vw, 4.8rem); line-height: 1.05; max-width: 18ch; }
.page-hero__lead { max-width: 620px; margin-top: 1.4rem; }

/* Teasers de la home */
.teaser-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 2rem; flex-wrap: wrap; margin-bottom: clamp(32px, 4vw, 56px); }
.teaser-head .section-head { margin-bottom: 0; }
a.tile { text-decoration: none; }
.two-col { display: grid; gap: clamp(28px, 4vw, 64px); grid-template-columns: 1fr 1fr; align-items: center; }
@media (max-width: 900px) { .two-col { grid-template-columns: 1fr; } }

/* ==========================================================================
   8. HERO
   ========================================================================== */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: flex-end;
  padding-bottom: clamp(48px, 8vh, 96px);
  overflow: hidden;
}
.hero__media { position: absolute; inset: 0; z-index: -2; }
.hero__media img {
  width: 100%; height: 100%;
  object-fit: cover;
  transform: scale(1.08);
  animation: hero-zoom 9s var(--ease) forwards;
}
.hero__media::after {
  content: "";
  position: absolute; inset: 0;
  background:
    linear-gradient(105deg, rgba(10,10,10,.80) 0%, rgba(10,10,10,.55) 42%, rgba(10,10,10,.22) 70%, rgba(10,10,10,.10) 100%),
    linear-gradient(to top, rgba(10,10,10,.55) 0%, rgba(10,10,10,.15) 55%, rgba(10,10,10,.05) 100%);
}
@keyframes hero-zoom { to { transform: scale(1); } }

.hero__inner { color: var(--cream); max-width: 940px; text-shadow: 0 2px 34px rgba(0,0,0,.34); }

/* Hero claro (versión legible sobre fondo blanco) */
.hero--light {
  position: relative;
  display: block;
  min-height: 0;
  background: var(--paper);
  padding: clamp(150px, 22vh, 246px) 0 0;
}
.hero.hero--light .hero__inner {
  color: var(--ink);
  text-shadow: none;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.hero.hero--light h1 { color: var(--brown); }
.hero.hero--light h1 em { color: var(--accent); }
.hero.hero--light .eyebrow { color: var(--accent-deep); }
.hero.hero--light .eyebrow::before { background: var(--accent); }
.hero.hero--light .hero__sub { color: var(--brown-soft); }
.hero__banner { margin-top: clamp(44px, 6vw, 80px); }
.hero__banner img { width: 100%; height: clamp(320px, 54vh, 640px); object-fit: cover; }
.hero__inner .eyebrow { color: var(--hi); }
.hero__inner .eyebrow::before { background: var(--hi); }
.hero h1 { color: #fff; margin-bottom: 1.4rem; }
.hero h1 em { font-family: var(--font-display); font-style: italic; font-weight: 500; font-size: 1.16em; letter-spacing: 0; color: #a89a86; }
.hero__sub { max-width: 620px; color: rgba(255,255,255,.94); font-size: clamp(1rem, 1.3vw, 1.18rem); }
.hero__actions { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 2.2rem; }

.hero__scroll {
  position: absolute;
  bottom: 26px; right: var(--gutter);
  display: flex; align-items: center; gap: .7rem;
  font-size: .68rem; letter-spacing: .2em; text-transform: uppercase;
  color: rgba(245,239,234,.7);
}
.hero__scroll .bar { width: 1px; height: 46px; background: rgba(245,239,234,.4); overflow: hidden; position: relative; }
.hero__scroll .bar::after { content:""; position:absolute; top:-46px; left:0; width:100%; height:46px; background: var(--cream); animation: scroll-run 2.1s var(--ease) infinite; }
@keyframes scroll-run { to { top: 46px; } }

/* Franja de credenciales */
.trust {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}
.trust__row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
}
.trust__cell { background: var(--paper); padding: clamp(24px, 3vw, 40px) clamp(18px, 2vw, 32px); }
.trust__num { font-family: var(--font-display); font-size: clamp(2rem, 3.4vw, 3rem); color: var(--accent-deep); line-height: 1; }
.trust__lbl { font-size: .82rem; color: var(--muted); margin-top: .5rem; }

/* ==========================================================================
   9. NOSOTROS / intro editorial
   ========================================================================== */
.about { align-items: center; grid-template-columns: 1.05fr .95fr; }
.about__media { position: relative; }
.about__media img { width: 100%; aspect-ratio: 4/5; object-fit: cover; border-radius: var(--radius); }
.about__badge {
  position: absolute;
  right: clamp(-14px, -1vw, -28px);
  bottom: clamp(20px, 4vw, 40px);
  background: var(--brown);
  color: var(--cream);
  padding: 1.3rem 1.6rem;
  max-width: 220px;
  border-radius: var(--radius);
  box-shadow: 0 24px 50px rgba(33,23,18,.28);
}
.about__badge strong { font-family: var(--font-display); font-size: 2.4rem; display: block; line-height: 1; color: var(--hi); }
.about__badge span { font-size: .82rem; color: rgba(245,239,234,.85); }
.about__body h2 { margin-bottom: 1.6rem; }
.about__list { list-style: none; padding: 0; margin: 2rem 0 0; display: grid; gap: .9rem; }
.about__list li { display: flex; gap: .8rem; align-items: flex-start; font-size: .98rem; }
.about__list svg { flex: none; margin-top: .28em; color: var(--accent); }

/* ==========================================================================
   10. SERVICIOS
   ========================================================================== */
.services { grid-template-columns: repeat(2, 1fr); }
.svc {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(28px, 3vw, 44px);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: transform .45s var(--ease), box-shadow .45s var(--ease), border-color .45s var(--ease);
}
.svc:hover { transform: translateY(-6px); box-shadow: 0 26px 60px rgba(33,23,18,.12); border-color: var(--accent); }
.svc__no { font-family: var(--font-display); font-size: 1.1rem; color: var(--accent); letter-spacing: .1em; }
.svc h3 { font-size: clamp(1.4rem, 2vw, 1.8rem); }
.svc p { color: var(--muted); font-size: .96rem; margin: 0; }
.svc__top { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; border-bottom: 1px solid var(--line); padding-bottom: 1rem; }

/* Servicios complementarios / especializados: listas */
.svc-lists { grid-template-columns: repeat(2, 1fr); margin-top: clamp(40px, 5vw, 72px); }
.svc-lists h3 { font-size: 1.4rem; margin-bottom: 1.2rem; padding-bottom: .8rem; border-bottom: 1px solid rgba(245,239,234,.18); }
.chips { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: .6rem; }
.chips li {
  font-size: .86rem;
  padding: .55em 1em;
  border: 1px solid rgba(245,239,234,.22);
  border-radius: 100px;
  color: rgba(245,239,234,.9);
  transition: background .3s, color .3s, border-color .3s;
}
.chips li:hover { background: var(--cream); color: var(--brown); border-color: var(--cream); }

/* ==========================================================================
   11. PORTAFOLIO
   ========================================================================== */
.portfolio-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 2rem; flex-wrap: wrap; }
.filters { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 1.4rem; }
.filter {
  font-family: var(--font-body);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .04em;
  padding: .55em 1.1em;
  background: none;
  border: 1px solid var(--line);
  border-radius: 100px;
  color: var(--muted);
  cursor: pointer;
  transition: all .3s var(--ease);
}
.filter:hover { border-color: var(--brown); color: var(--brown); }
.filter.is-active { background: var(--brown); color: var(--cream); border-color: var(--brown); }

/* Composición variada con separación SIEMPRE idéntica
   (altura de fila fija + spans → todos los huecos = gap) */
.gallery {
  margin-top: clamp(34px, 4vw, 56px);
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  grid-auto-rows: 13.5vw;
  gap: clamp(12px, 1.4vw, 20px);
  grid-auto-flow: dense;
}
.tile,
.tile--wide,
.tile--tall,
.tile--sq {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--sand);
  cursor: pointer;
}
.tile      { grid-column: span 4; grid-row: span 2; }
.tile--sq  { grid-column: span 4; grid-row: span 2; }
.tile--wide{ grid-column: span 8; grid-row: span 2; }
.tile--tall{ grid-column: span 4; grid-row: span 3; }
.tile img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease); }
.tile:hover img { transform: scale(1.06); }
.tile__meta {
  position: absolute; inset: auto 0 0 0;
  padding: 1.4rem 1.2rem .95rem;
  background: linear-gradient(to top, rgba(20,12,8,.78), transparent);
  color: var(--cream);
  transform: translateY(8px);
  opacity: 0;
  transition: opacity .4s var(--ease), transform .4s var(--ease);
}
.tile:hover .tile__meta { opacity: 1; transform: translateY(0); }
.tile__meta strong { display: block; font-family: var(--font-body); font-size: 1.12rem; font-weight: 600; letter-spacing: -.01em; }
.tile__meta span { font-size: .76rem; letter-spacing: .12em; text-transform: uppercase; color: var(--hi); }
.tile.is-hidden { display: none; }
.tile__tag {
  position: absolute; top: 12px; left: 12px;
  font-size: .66rem; letter-spacing: .14em; text-transform: uppercase;
  background: rgba(250,247,243,.9); color: var(--brown);
  padding: .35em .7em; border-radius: 100px;
  opacity: 0; transition: opacity .4s;
}
.tile:hover .tile__tag { opacity: 1; }

/* Galería de la home: mosaico fijo que cierra en rectángulo perfecto
   (1 imagen grande a la izquierda + rejilla 2×2 a la derecha) */
.gallery--home {
  grid-auto-flow: row;
  grid-auto-rows: 15vw;
}
.gallery--home > .tile { grid-column: auto; grid-row: auto; }
.gallery--home > :nth-child(1) { grid-column: 1 / 7;   grid-row: 1 / 3; }
.gallery--home > :nth-child(2) { grid-column: 7 / 10;  grid-row: 1 / 2; }
.gallery--home > :nth-child(3) { grid-column: 10 / 13; grid-row: 1 / 2; }
.gallery--home > :nth-child(4) { grid-column: 7 / 10;  grid-row: 2 / 3; }
.gallery--home > :nth-child(5) { grid-column: 10 / 13; grid-row: 2 / 3; }

/* ==========================================================================
   12. PROCESO
   ========================================================================== */
.process { grid-template-columns: 1fr; }
.steps { counter-reset: step; display: grid; gap: 0; margin-top: clamp(30px, 4vw, 48px); }
.step {
  display: grid;
  grid-template-columns: minmax(90px, 120px) 1fr;
  gap: clamp(20px, 3vw, 48px);
  padding: clamp(26px, 3vw, 40px) 0;
  border-top: 1px solid rgba(245,239,234,.18);
  align-items: start;
}
.step:last-child { border-bottom: 1px solid rgba(245,239,234,.18); }
.step__no { counter-increment: step; font-family: var(--font-display); font-size: clamp(2.4rem, 4vw, 3.6rem); color: var(--hi); line-height: .9; }
.step__no::before { content: "0" counter(step); }
.step h3 { font-size: clamp(1.3rem, 2vw, 1.7rem); margin-bottom: .6rem; }
.step p { color: rgba(245,239,234,.78); margin: 0; max-width: 60ch; }

/* Antes / Después */
.beforeafter { grid-template-columns: 1fr 1fr; align-items: center; margin-top: clamp(48px, 6vw, 80px); }
.ba-media { position: relative; border-radius: var(--radius); overflow: hidden; aspect-ratio: 4/5; }
.ba-media img { width: 100%; height: 100%; object-fit: cover; }
.ba-tag { position: absolute; top: 14px; left: 14px; font-size: .68rem; letter-spacing: .16em; text-transform: uppercase; padding: .4em .8em; border-radius: 100px; }
.ba-tag--before { background: rgba(20,12,8,.7); color: var(--cream); }
.ba-tag--after  { background: var(--accent); color: #fff; }

/* ==========================================================================
   13. FAQ
   ========================================================================== */
.faq { grid-template-columns: .8fr 1.2fr; align-items: start; }
.faq__list { border-top: 1px solid var(--line); }
.qa { border-bottom: 1px solid var(--line); }
.qa__q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1.5rem 0;
  background: none; border: 0; cursor: pointer;
  text-align: left;
  font-family: var(--font-body);
  font-weight: 500;
  letter-spacing: -.01em;
  font-size: clamp(1.05rem, 1.5vw, 1.28rem);
  color: var(--brown);
}
.qa__icon { flex: none; position: relative; width: 20px; height: 20px; }
.qa__icon::before,
.qa__icon::after { content: ""; position: absolute; top: 50%; left: 50%; background: var(--accent-deep); transition: transform .35s var(--ease); }
.qa__icon::before { width: 16px; height: 1.5px; transform: translate(-50%, -50%); }
.qa__icon::after  { width: 1.5px; height: 16px; transform: translate(-50%, -50%); }
.qa.is-open .qa__icon::after { transform: translate(-50%, -50%) scaleY(0); }
.qa__a { overflow: hidden; max-height: 0; transition: max-height .45s var(--ease); }
.qa__a-inner { padding-bottom: 1.6rem; color: var(--muted); max-width: 62ch; }
.qa__a-inner ol { margin: .5rem 0 0; padding-left: 1.1rem; }
.qa__a-inner li { margin-bottom: .5rem; }

/* ==========================================================================
   14. CONTACTO
   ========================================================================== */
.contact { grid-template-columns: .85fr 1.15fr; align-items: start; }
.contact__info h2 { margin-bottom: 1.4rem; }
.contact__details { list-style: none; padding: 0; margin: 2.2rem 0 0; display: grid; gap: 1.4rem; }
.contact__details li { display: flex; gap: 1rem; align-items: flex-start; }
.contact__details svg { flex: none; margin-top: .2em; color: var(--accent); }
.contact__details .k { font-size: .72rem; letter-spacing: .16em; text-transform: uppercase; color: var(--muted); display: block; margin-bottom: .15rem; }
.contact__details a:hover { color: var(--accent-deep); }

.form {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(28px, 3.5vw, 48px);
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem 1.4rem; }
.field { display: flex; flex-direction: column; gap: .5rem; }
.field--full { grid-column: 1 / -1; }
.field label { font-size: .74rem; letter-spacing: .1em; text-transform: uppercase; color: var(--brown-soft); font-weight: 600; }
.field label .req { color: var(--accent); }
.field input,
.field select,
.field textarea {
  font-family: var(--font-body);
  font-size: .96rem;
  color: var(--ink);
  padding: .85em 1em;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color .3s, box-shadow .3s;
  width: 100%;
}
.field textarea { resize: vertical; min-height: 120px; }
.field input:focus,
.field select:focus,
.field textarea:focus { outline: 0; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(169,115,63,.14); }
.form .btn { width: 100%; margin-top: .6rem; }
.form__note { font-size: .78rem; color: var(--muted); margin: 1rem 0 0; text-align: center; }
.form__ok {
  display: none;
  background: var(--sand);
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  padding: 1rem 1.2rem;
  color: var(--brown);
  font-size: .92rem;
  margin-bottom: 1.4rem;
}
.form__ok.is-show { display: block; }

/* CTA final */
.cta-band { text-align: center; }
.cta-band h2 { margin-bottom: 1rem; }
.cta-band p { max-width: 560px; margin-inline: auto; color: rgba(245,239,234,.82); }
.cta-band .btn { margin-top: 2rem; }

/* ==========================================================================
   15. FOOTER
   ========================================================================== */
/* Footer negativo revelado: el contenido se desliza por encima */
main { position: relative; z-index: 1; background: var(--paper); }
.site-footer {
  position: fixed; left: 0; right: 0; bottom: 0; width: 100%;
  z-index: 0;
  background: var(--ink); color: rgba(245,239,234,.72);
  padding-block: clamp(56px, 7vw, 88px) 2rem;
}
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: clamp(32px, 4vw, 64px); }
.footer-brand img { height: 112px; margin-bottom: 1.4rem; }
.footer-brand p { max-width: 34ch; font-size: .92rem; line-height: 1.45; }
.footer-col h4 { color: var(--cream); font-family: var(--font-body); font-size: .74rem; letter-spacing: .16em; text-transform: uppercase; margin-bottom: 1.2rem; font-weight: 600; }
.footer-col ul { list-style: none; padding: 0; margin: 0; display: grid; gap: .7rem; }
.footer-col a { font-size: .92rem; transition: color .3s; }
.footer-col a:hover { color: var(--cream); }
.footer-bottom {
  margin-top: clamp(40px, 5vw, 64px);
  padding-top: 1.8rem;
  border-top: 1px solid rgba(245,239,234,.12);
  display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap;
  font-size: .8rem;
}
.footer-bottom a:hover { color: var(--cream); }

/* ==========================================================================
   16. Reveal on scroll
   ========================================================================== */
.reveal { opacity: 0; transform: translateY(var(--reveal-y)); transition: opacity .9s var(--ease), transform .9s var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: .09s; }
.reveal[data-delay="2"] { transition-delay: .18s; }
.reveal[data-delay="3"] { transition-delay: .27s; }
.reveal[data-delay="4"] { transition-delay: .36s; }

/* ==========================================================================
   17. Lightbox
   ========================================================================== */
.lightbox {
  position: fixed; inset: 0; z-index: 1200;
  display: grid; place-items: center;
  background: rgba(20,12,8,.92);
  opacity: 0; visibility: hidden;
  transition: opacity .4s var(--ease), visibility .4s var(--ease);
  padding: 5vw;
}
.lightbox.is-open { opacity: 1; visibility: visible; }
.lightbox img { max-width: 92vw; max-height: 82vh; border-radius: var(--radius); box-shadow: 0 30px 80px rgba(0,0,0,.5); }
.lightbox__cap { position: absolute; bottom: 4vh; left: 0; right: 0; text-align: center; color: var(--cream); font-size: .9rem; letter-spacing: .04em; }
.lightbox__close, .lightbox__nav {
  position: absolute; background: rgba(245,239,234,.1); border: 1px solid rgba(245,239,234,.25);
  color: var(--cream); width: 48px; height: 48px; border-radius: 50%; cursor: pointer;
  display: grid; place-items: center; transition: background .3s;
}
.lightbox__close:hover, .lightbox__nav:hover { background: rgba(245,239,234,.25); }
.lightbox__close { top: 4vh; right: 4vw; }
.lightbox__nav { top: 50%; transform: translateY(-50%); }
.lightbox__nav--prev { left: 3vw; }
.lightbox__nav--next { right: 3vw; }

/* ==========================================================================
   18. Responsive
   ========================================================================== */
@media (max-width: 900px) {
  .about, .faq, .contact, .beforeafter { grid-template-columns: 1fr; }
  .about__media { max-width: 480px; }
  .services, .svc-lists, .footer-grid { grid-template-columns: 1fr; }
  .footer-grid { gap: 40px; }

  .nav-toggle { display: flex; }
  .nav {
    position: fixed;
    inset: 0 0 0 auto;
    width: min(84vw, 360px);
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 1.6rem;
    padding: 2rem var(--gutter);
    background: var(--paper);
    box-shadow: -20px 0 60px rgba(33,23,18,.16);
    transform: translateX(100%);
    transition: transform .5s var(--ease);
  }
  .nav-open .nav { transform: translateX(0); }
  .nav__link { font-size: 1.15rem; font-family: var(--font-body); font-weight: 500; }
  /* El panel móvil es claro: fuerza texto oscuro aunque el header sea overlay */
  .site-header .nav .nav__link { color: var(--brown); }
  .nav__cta { width: 100%; margin: .6rem 0 0; }

  .trust__row { grid-template-columns: repeat(2, 1fr); }
  .gallery { grid-template-columns: repeat(6, 1fr); grid-auto-rows: 27vw; }
  .tile, .tile--sq { grid-column: span 3; grid-row: span 2; }
  .tile--wide { grid-column: span 6; grid-row: span 2; }
  .tile--tall { grid-column: span 3; grid-row: span 3; }
  .gallery--home { grid-template-columns: repeat(6, 1fr); grid-auto-rows: 21vw; }
  .gallery--home > :nth-child(1) { grid-column: 1 / 7; grid-row: 1 / 3; }
  .gallery--home > :nth-child(2) { grid-column: 1 / 4; grid-row: 3 / 4; }
  .gallery--home > :nth-child(3) { grid-column: 4 / 7; grid-row: 3 / 4; }
  .gallery--home > :nth-child(4) { grid-column: 1 / 4; grid-row: 4 / 5; }
  .gallery--home > :nth-child(5) { grid-column: 4 / 7; grid-row: 4 / 5; }
  .step { grid-template-columns: 64px 1fr; gap: 20px; }
}
@media (max-width: 560px) {
  .form-grid { grid-template-columns: 1fr; }
  .trust__row { grid-template-columns: 1fr 1fr; }
  .gallery { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 40vw; gap: 12px; }
  .tile, .tile--sq, .tile--tall { grid-column: span 1; grid-row: span 2; }
  .tile--wide { grid-column: span 2; grid-row: span 2; }
  .gallery--home { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 40vw; }
  .gallery--home > :nth-child(1) { grid-column: 1 / 3; grid-row: 1 / 2; }
  .gallery--home > :nth-child(2) { grid-column: 1 / 2; grid-row: 2 / 3; }
  .gallery--home > :nth-child(3) { grid-column: 2 / 3; grid-row: 2 / 3; }
  .gallery--home > :nth-child(4) { grid-column: 1 / 2; grid-row: 3 / 4; }
  .gallery--home > :nth-child(5) { grid-column: 2 / 3; grid-row: 3 / 4; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .hero__scroll { display: none; }
  .about__badge { right: 12px; }
}

/* ==========================================================================
   19. Reduce motion
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-delay: 0s !important; transition-duration: .1ms !important; scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
  #introMark, #introWord, .intro__floor { opacity: 1; transform: none; clip-path: none; }
  .hero__media img { transform: none; }
}