/* =============================================================================
   Reforma Integral Madrid y Alrededores · hoja de estilo única
   Arquetipo: editorial claro · arena + oliva + latón
   Señal de la web: comparador arrastrable con fotos reales de una obra suya

   1 Tokens · 2 Reset · 3 Utilidades · 4 Tipografía · 5 Componentes
   6 Secciones · 7 Efectos · 8 Responsive · 9 Movimiento reducido
   ============================================================================= */

/* =============================================================
   1. TOKENS
   ============================================================= */
:root {
  --arena:      #F2EDE4;
  --arena-2:    #E6DFD2;
  --papel:      #FBF9F5;
  --oscuro:     #22261F;
  --oscuro-2:   #2B3029;

  --tinta:      #1A1C18;
  --tinta-2:    #3B3F37;
  --mute:       #767A6E;
  --inv:        #F1ECE1;
  --inv-mute:   rgba(241, 236, 225, .64);

  --oliva:      #3F5040;
  --oliva-2:    #2C3A2D;
  --laton:      #A8804A;
  --laton-claro:#C6A96E;
  --wa:         #1FAD54;
  --wa-2:       #17843F;

  --linea:      rgba(26, 28, 24, .13);
  --linea-inv:  rgba(241, 236, 225, .18);

  --display: "Fraunces", Georgia, "Times New Roman", serif;
  --sans:    "Figtree", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  --gutter:  clamp(1.15rem, 5vw, 4.5rem);
  --ancho:   1280px;
  --radio:   3px;
  --nav-h:   68px;
  --barra-h: 64px;     /* alto de la barra fija de móvil */

  --ease-out:  cubic-bezier(.16, 1, .3, 1);
  --ease-soft: cubic-bezier(.25, .46, .45, .94);

  --sombra:    0 18px 44px -26px rgba(26, 28, 24, .42);
  --sombra-xl: 0 40px 90px -46px rgba(26, 28, 24, .58);
}

/* =============================================================
   2. RESET Y BASE
   ============================================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; }

html {
  -webkit-text-size-adjust: 100%;
  tab-size: 2;
  overflow-x: clip;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 16px);
}

body {
  font-family: var(--sans);
  font-size: 16px;
  font-weight: 350;
  line-height: 1.62;
  color: var(--tinta-2);
  background: var(--arena);
  overflow-x: clip;
  overscroll-behavior-y: none;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  /* Hueco para que la barra fija de móvil no tape el final de la página */
  padding-bottom: calc(var(--barra-h) + env(safe-area-inset-bottom));
}

img, svg, video { display: block; max-width: 100%; }
img { height: auto; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }
a { color: inherit; text-decoration: none; -webkit-tap-highlight-color: rgba(63, 80, 64, .18); }
p { text-wrap: pretty; }
ul, ol { list-style: none; padding: 0; }

::selection { background: var(--oliva); color: var(--inv); }

:focus-visible {
  outline: 2px solid var(--oliva);
  outline-offset: 3px;
  border-radius: var(--radio);
}

/* =============================================================
   3. UTILIDADES
   ============================================================= */
.skip-link {
  position: fixed; top: -100px; left: 1rem;
  padding: .65rem 1.1rem;
  background: var(--oscuro); color: var(--inv);
  z-index: 9999; border-radius: var(--radio); font-weight: 600;
}
.skip-link:focus { top: 1rem; }

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

.ico { width: 18px; height: 18px; flex: 0 0 auto; }

/* =============================================================
   4. TIPOGRAFÍA
   ============================================================= */
h1, h2, h3, h4 {
  font-family: var(--display);
  font-weight: 500;
  color: var(--tinta);
  line-height: 1.06;
  letter-spacing: -.02em;
  text-wrap: balance;
  font-variation-settings: "SOFT" 20, "WONK" 0;
}
h1 em, h2 em, h3 em {
  font-style: italic;
  font-weight: 500;
  color: var(--oliva);
  font-variation-settings: "SOFT" 60, "WONK" 1;
}

.eyebrow {
  font-size: .73rem;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--laton);
  margin-bottom: .9rem;
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--mute);
  margin-bottom: 1.4rem;
}
.kicker-punto { width: 7px; height: 7px; border-radius: 50%; background: var(--laton); flex: 0 0 auto; }

/* =============================================================
   5. COMPONENTES
   ============================================================= */

/* ---- Botones. Altura mínima 48 px: es la medida de un dedo. ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .6rem;
  min-height: 48px;
  padding: .85rem 1.5rem;
  border-radius: var(--radio);
  font-size: .95rem;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: background .35s var(--ease-out), color .35s var(--ease-out),
              border-color .35s var(--ease-out), transform .35s var(--ease-out),
              box-shadow .35s var(--ease-out);
}
.btn-grande { min-height: 54px; padding: 1rem 1.6rem; font-size: 1rem; }

.btn-solid {
  background: var(--oliva);
  color: var(--inv);
  box-shadow: 0 12px 28px -18px rgba(44, 58, 45, .85);
}
.btn-solid:hover { background: var(--oliva-2); transform: translateY(-2px); }

.btn-wa {
  background: var(--wa);
  color: #fff;
  box-shadow: 0 12px 28px -18px rgba(23, 132, 63, .9);
}
.btn-wa:hover { background: var(--wa-2); transform: translateY(-2px); }

.btn-linea { border: 1px solid var(--linea); color: var(--tinta); }
.btn-linea:hover { border-color: var(--oliva); color: var(--oliva); transform: translateY(-2px); }

/* ---- Comparador arrastrable (la señal de esta web) ---- */
.ba {
  position: relative;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  border-radius: var(--radio);
  background: var(--arena-2);
  isolation: isolate;
  box-shadow: var(--sombra);
  margin: 0;
}

.ba-capa {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  user-select: none;
  -webkit-user-drag: none;
}
/* La capa A (durante la obra) se recorta según dónde esté el tirador */
.ba-a { clip-path: inset(0 calc(100% - var(--pos, 50%)) 0 0); z-index: 2; }
.ba-b { z-index: 1; }

.ba-etiqueta {
  position: absolute;
  top: .8rem;
  z-index: 3;
  padding: .32rem .7rem;
  border-radius: 100px;
  font-size: .66rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  background: rgba(26, 28, 24, .66);
  color: var(--inv);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  pointer-events: none;
}
.ba-etiqueta-a { left: .8rem; }
.ba-etiqueta-b { right: .8rem; background: rgba(63, 80, 64, .86); }

.ba-linea {
  position: absolute;
  top: 0; bottom: 0;
  left: var(--pos, 50%);
  width: 2px;
  margin-left: -1px;
  background: var(--papel);
  box-shadow: 0 0 0 1px rgba(26, 28, 24, .18);
  z-index: 4;
  pointer-events: none;
}

.ba-tirador {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 50px; height: 50px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--papel);
  color: var(--oliva);
  box-shadow: 0 6px 18px -6px rgba(26, 28, 24, .55);
  transition: transform .3s var(--ease-out);
}
.ba-tirador svg { width: 20px; height: 20px; }
.ba:hover .ba-tirador { transform: translate(-50%, -50%) scale(1.08); }

/* El deslizador real: invisible, ocupa toda la figura. Da táctil y teclado. */
.ba-mando {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  margin: 0; padding: 0;
  opacity: 0;
  z-index: 5;
  cursor: ew-resize;
  background: transparent;
  -webkit-appearance: none;
  appearance: none;
  touch-action: pan-y;   /* deja pasar el scroll vertical del dedo */
}
.ba-mando::-webkit-slider-thumb { -webkit-appearance: none; appearance: none; width: 56px; height: 100vh; cursor: ew-resize; }
.ba-mando::-moz-range-thumb { width: 56px; height: 100vh; border: 0; border-radius: 0; background: transparent; cursor: ew-resize; }
.ba-mando:focus-visible { outline: none; }
.ba-mando:focus-visible ~ .ba-linea .ba-tirador { outline: 3px solid var(--laton); outline-offset: 3px; }

.ba-pie {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  z-index: 3;
  padding: 2.4rem .9rem .75rem;
  font-size: .74rem;
  font-weight: 500;
  color: var(--inv);
  background: linear-gradient(to top, rgba(26, 28, 24, .7), transparent);
  pointer-events: none;
}

/* =============================================================
   6. SECCIONES
   ============================================================= */

/* ---- Franja de propuesta ---- */
.demo-bar {
  background: var(--oscuro);
  color: var(--inv);
  padding: .55rem var(--gutter);
  text-align: center;
  font-size: .76rem;
  line-height: 1.45;
}
.demo-bar strong { color: var(--laton-claro); font-weight: 700; }

/* ---- Navegación ---- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(242, 237, 228, .84);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid transparent;
  transition: border-color .4s var(--ease-out), background .4s var(--ease-out);
}
@supports not (backdrop-filter: blur(4px)) { .nav { background: var(--arena); } }
.nav.es-solida { border-bottom-color: var(--linea); background: rgba(242, 237, 228, .96); }

.nav-inner {
  max-width: var(--ancho);
  margin-inline: auto;
  padding: 0 var(--gutter);
  height: var(--nav-h);
  display: flex;
  align-items: center;
  gap: 1rem;
}

.marca { display: flex; align-items: center; gap: .65rem; margin-right: auto; min-width: 0; }
.marca-icono {
  width: 34px; height: 34px;
  display: grid; place-items: center;
  border-radius: var(--radio);
  background: var(--oliva);
  color: var(--inv);
  flex: 0 0 auto;
}
.marca-icono svg { width: 19px; height: 19px; }
.marca-texto { display: flex; flex-direction: column; line-height: 1.12; min-width: 0; }
.marca-texto strong {
  font-family: var(--display);
  font-size: 1rem; font-weight: 600;
  color: var(--tinta); letter-spacing: -.015em;
  white-space: nowrap;
}
.marca-texto em {
  font-style: normal;
  font-size: .66rem; font-weight: 500;
  letter-spacing: .09em; text-transform: uppercase;
  color: var(--mute);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

.nav-links { display: none; gap: 1.6rem; }
.nav-links a {
  position: relative;
  font-size: .92rem; font-weight: 500;
  color: var(--tinta-2);
  padding-block: .3rem;
  transition: color .3s var(--ease-out);
}
.nav-links a::after {
  content: "";
  position: absolute; left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: var(--oliva);
  transform: scaleX(0); transform-origin: right;
  transition: transform .4s var(--ease-out);
}
.nav-links a:hover { color: var(--oliva); }
.nav-links a:hover::after { transform: scaleX(1); transform-origin: left; }

.nav-cta { display: none; min-height: 42px; padding: .55rem 1.1rem; font-size: .9rem; }

.nav-burger {
  position: relative;
  width: 46px; height: 46px;
  border-radius: var(--radio);
  border: 1px solid var(--linea);
  flex: 0 0 auto;
}
.nav-burger span {
  position: absolute;
  left: 50%; top: 50%;
  width: 18px; height: 1.5px;
  background: var(--tinta);
  border-radius: 2px;
  transition: transform .35s var(--ease-out);
}
.nav-burger span:first-child { transform: translate(-50%, -50%) translateY(-3.5px); }
.nav-burger span:last-child  { transform: translate(-50%, -50%) translateY(3.5px); }
.nav-burger[aria-expanded="true"] span:first-child { transform: translate(-50%, -50%) rotate(45deg); }
.nav-burger[aria-expanded="true"] span:last-child  { transform: translate(-50%, -50%) rotate(-45deg); }

.nav-movil {
  border-top: 1px solid var(--linea);
  background: var(--arena);
  padding: .4rem var(--gutter) 1rem;
  display: flex;
  flex-direction: column;
}
.nav-movil[hidden] { display: none; }
.nav-movil a {
  display: flex; align-items: center;
  min-height: 52px;
  font-size: 1.02rem; font-weight: 500;
  color: var(--tinta);
  border-bottom: 1px solid var(--linea);
}
.nav-movil a:last-child { border-bottom: 0; color: var(--oliva); font-weight: 700; }

/* ---- Hero ---- */
.hero {
  position: relative;
  padding: clamp(2.2rem, 6vw, 4.6rem) 0 clamp(2.6rem, 7vw, 5rem);
  background:
    radial-gradient(70% 55% at 88% 8%, rgba(168, 128, 74, .13), transparent 68%),
    var(--arena);
}
.hero-inner {
  max-width: var(--ancho);
  margin-inline: auto;
  padding-inline: var(--gutter);
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.8rem, 5vw, 3.2rem);
  align-items: center;
}

.hero-titulo {
  font-size: clamp(2.1rem, 8vw, 4rem);
  line-height: 1.02;
  max-width: 15ch;
  margin-bottom: 1.2rem;
}
.hero-entrada {
  font-size: clamp(1rem, 2.4vw, 1.1rem);
  color: var(--tinta-2);
  max-width: 46ch;
  margin-bottom: 1.7rem;
}

.hero-acciones { display: flex; flex-direction: column; gap: .7rem; margin-bottom: 1.8rem; }

.hero-sellos {
  display: flex; flex-direction: column; gap: .55rem;
  padding-top: 1.4rem;
  border-top: 1px solid var(--linea);
}
.hero-sellos li { display: flex; align-items: center; gap: .6rem; font-size: .89rem; color: var(--tinta-2); }
.hero-sellos small { color: var(--mute); }
.hero-sellos span {
  width: 20px; height: 20px;
  display: grid; place-items: center;
  border-radius: 50%;
  background: rgba(63, 80, 64, .11);
  color: var(--oliva);
  font-size: .66rem; font-weight: 700;
  flex: 0 0 auto;
}

/* ---- Marquesina ---- */
.franja {
  overflow: hidden;
  padding: .9rem 0;
  background: var(--oscuro);
  color: var(--inv-mute);
}
.franja-pista {
  display: flex; align-items: center; gap: 1.3rem;
  width: max-content;
  animation: deslizar 42s linear infinite;
}
.franja-pista span {
  font-size: .8rem; font-weight: 500;
  letter-spacing: .12em; text-transform: uppercase;
  white-space: nowrap;
}
@keyframes deslizar { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ---- Secciones genéricas ---- */
.seccion { padding: clamp(3rem, 8vw, 6rem) 0; }
.seccion-arena  { background: var(--arena-2); }
.seccion-oscura { background: var(--oscuro); color: var(--inv-mute); }
.seccion-oscura h2, .seccion-oscura h3 { color: var(--inv); }
.seccion-oscura h2 em { color: var(--laton-claro); }
.seccion-oscura .eyebrow { color: var(--laton-claro); }
.seccion-oscura .seccion-entrada { color: var(--inv-mute); }

.seccion-cabecera { max-width: 62ch; margin-bottom: clamp(2rem, 5vw, 3.2rem); }
.seccion-cabecera-centro { margin-inline: auto; text-align: center; }
.seccion-cabecera-centro .seccion-entrada { margin-inline: auto; }
.seccion-titulo { font-size: clamp(1.8rem, 5.4vw, 2.9rem); margin-bottom: .9rem; }
.seccion-entrada { font-size: clamp(.97rem, 2.2vw, 1.06rem); color: var(--tinta-2); max-width: 54ch; }

.nota-demo {
  margin-top: 2rem;
  padding: .9rem 1.1rem;
  border-left: 2px solid var(--laton-claro);
  background: rgba(241, 236, 225, .06);
  font-size: .86rem;
  color: var(--inv-mute);
}
.nota-demo strong { color: var(--inv); }

/* ---- Servicios ---- */
.servicios-grid {
  display: grid; grid-template-columns: 1fr; gap: 1px;
  background: var(--linea);
  border-block: 1px solid var(--linea);
}
.servicio { background: var(--arena); padding: clamp(1.4rem, 4vw, 2.1rem); transition: background .4s var(--ease-out); }
.servicio:hover { background: var(--papel); }
.servicio-n { font-family: var(--display); font-size: .82rem; font-weight: 600; letter-spacing: .1em; color: var(--laton); margin-bottom: .8rem; }
.servicio h3 { font-size: 1.3rem; margin-bottom: .55rem; }
.servicio p { font-size: .93rem; color: var(--tinta-2); }
.servicio-destacado { background: var(--papel); }
.servicio-destacado .servicio-n { color: var(--oliva); }

/* ---- La obra ---- */
.obra-detalle { display: grid; grid-template-columns: 1fr; gap: clamp(1.6rem, 4vw, 3rem); align-items: start; }
.obra-fotos { display: grid; grid-template-columns: 1fr 1fr; gap: .6rem; }
.obra-foto { margin: 0; position: relative; }
.obra-foto img { width: 100%; aspect-ratio: 3/4; object-fit: cover; border-radius: var(--radio); }
.obra-foto figcaption {
  position: absolute; left: .55rem; bottom: .55rem;
  padding: .26rem .6rem;
  border-radius: 100px;
  font-size: .64rem; font-weight: 700;
  letter-spacing: .1em; text-transform: uppercase;
  background: rgba(26, 28, 24, .72); color: var(--inv);
}
.obra-texto p { font-size: .96rem; margin-bottom: 1rem; }
.obra-texto strong { color: var(--inv); font-weight: 600; }
.obra-lista { display: grid; gap: .5rem; margin-top: 1.3rem; padding-top: 1.3rem; border-top: 1px solid var(--linea-inv); }
.obra-lista li { position: relative; padding-left: 1.3rem; font-size: .92rem; }
.obra-lista li::before { content: "—"; position: absolute; left: 0; color: var(--laton-claro); }

/* ---- Proceso ---- */
.proceso-lista { display: grid; grid-template-columns: 1fr; border-top: 1px solid var(--linea); }
.paso { display: flex; align-items: flex-start; gap: 1.1rem; padding: clamp(1.3rem, 3.5vw, 1.8rem) 0; border-bottom: 1px solid var(--linea); }
.paso-n {
  flex: 0 0 auto;
  width: 40px; height: 40px;
  display: grid; place-items: center;
  border-radius: 50%;
  border: 1px solid var(--oliva);
  font-family: var(--display); font-size: 1.05rem; font-weight: 600;
  color: var(--oliva);
}
.paso h3 { font-size: 1.16rem; margin-bottom: .3rem; }
.paso p { font-size: .93rem; color: var(--tinta-2); max-width: 52ch; }

/* ---- Zonas ---- */
.zonas-inner { display: grid; grid-template-columns: 1fr; gap: clamp(1.8rem, 5vw, 3.4rem); align-items: start; }
.zonas-texto .seccion-entrada { margin-bottom: 1.6rem; }
.zonas-lista {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px;
  background: var(--linea);
  border: 1px solid var(--linea);
  border-radius: var(--radio);
  overflow: hidden;
}
.zonas-lista li { background: var(--arena-2); padding: .8rem .9rem; font-size: .87rem; font-weight: 500; color: var(--tinta-2); }

/* ---- Valoración ---- */
.seccion-opiniones { background: var(--papel); }
.valoracion { display: grid; grid-template-columns: 1fr; gap: clamp(1.6rem, 4vw, 3rem); align-items: start; }
.valoracion-nota {
  display: grid; justify-items: center; gap: .3rem;
  padding: 1.6rem 1.2rem;
  border: 1px solid var(--linea);
  border-radius: var(--radio);
  background: var(--arena);
}
.valoracion-numero { font-family: var(--display); font-size: 3.4rem; font-weight: 600; line-height: 1; color: var(--tinta); }
.valoracion-estrellas { font-size: 1.05rem; letter-spacing: .14em; color: var(--laton); }
.valoracion-pie { font-size: .8rem; font-weight: 500; color: var(--mute); }
.valoracion-texto p { font-size: .98rem; margin-bottom: 1rem; }
.valoracion-nota-pie { font-size: .88rem; color: var(--mute); }

/* ---- Contacto ---- */
.contacto-botones { display: grid; grid-template-columns: 1fr; gap: .8rem; max-width: 720px; margin-inline: auto; }
.contacto-tarjeta {
  display: flex; align-items: center; gap: 1rem;
  min-height: 84px;
  padding: 1rem 1.2rem;
  border-radius: var(--radio);
  border: 1px solid var(--linea-inv);
  background: rgba(241, 236, 225, .05);
  transition: background .35s var(--ease-out), transform .35s var(--ease-out), border-color .35s var(--ease-out);
}
.contacto-tarjeta:hover { background: rgba(241, 236, 225, .1); transform: translateY(-2px); }
.contacto-icono { width: 46px; height: 46px; display: grid; place-items: center; border-radius: 50%; flex: 0 0 auto; }
.contacto-icono svg { width: 22px; height: 22px; }
.contacto-tarjeta-tel .contacto-icono { background: var(--oliva); color: var(--inv); }
.contacto-tarjeta-tel:hover { border-color: var(--laton-claro); }
.contacto-tarjeta-wa .contacto-icono { background: var(--wa); color: #fff; }
.contacto-tarjeta-wa:hover { border-color: var(--wa); }
.contacto-cuerpo { display: flex; flex-direction: column; gap: .12rem; min-width: 0; }
.contacto-etiqueta { font-size: .72rem; font-weight: 700; letter-spacing: .13em; text-transform: uppercase; color: var(--laton-claro); }
.contacto-tarjeta-wa .contacto-etiqueta { color: #7BD9A0; }
.contacto-valor { font-family: var(--display); font-size: 1.32rem; font-weight: 600; color: var(--inv); letter-spacing: -.015em; }
.contacto-horario { text-align: center; margin-top: 1.5rem; font-size: .88rem; color: var(--inv-mute); }

/* ---- Pie ---- */
.pie {
  background: var(--oscuro-2);
  color: var(--inv-mute);
  padding: clamp(2.4rem, 6vw, 3.6rem) 0 clamp(1.8rem, 5vw, 2.4rem);
  border-top: 1px solid var(--linea-inv);
}
.pie-inner { display: grid; grid-template-columns: 1fr; gap: 1.8rem; }
.pie-marca strong { display: block; font-family: var(--display); font-size: 1.12rem; font-weight: 600; color: var(--inv); margin-bottom: .5rem; }
.pie-marca p { font-size: .87rem; }
.pie-tel {
  display: inline-flex; align-items: center;
  min-height: 44px;
  margin-top: .6rem;
  font-family: var(--display); font-size: 1.25rem; font-weight: 600;
  color: var(--laton-claro);
}
.pie-links { display: flex; flex-wrap: wrap; gap: .3rem 1.4rem; }
.pie-links a { display: inline-flex; align-items: center; min-height: 40px; font-size: .88rem; }
.pie-links a:hover { color: var(--laton-claro); }
.pie-legal { display: grid; gap: .35rem; padding-top: 1.4rem; border-top: 1px solid var(--linea-inv); font-size: .8rem; }
.pie-aviso { color: var(--laton-claro); }

/* ---- Barra fija de móvil: llamar y WhatsApp siempre a mano ---- */
.barra-movil {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 60;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--linea-inv);
  padding-bottom: env(safe-area-inset-bottom);
  box-shadow: 0 -10px 30px -18px rgba(26, 28, 24, .65);
}
.barra-btn {
  display: flex; align-items: center; justify-content: center; gap: .5rem;
  min-height: var(--barra-h);
  font-size: 1rem; font-weight: 700;
  color: #fff;
}
.barra-btn svg { width: 20px; height: 20px; }
.barra-btn-tel { background: var(--oliva); }
.barra-btn-tel:active { background: var(--oliva-2); }
.barra-btn-wa { background: var(--wa); }
.barra-btn-wa:active { background: var(--wa-2); }

/* =============================================================
   7. EFECTOS
   ============================================================= */
/* Solo se esconden si el JavaScript está vivo (clase .js del <head>).
   Si falla o está bloqueado, el contenido se ve entero desde el principio. */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .8s var(--ease-out), transform .8s var(--ease-out);
}
.js [data-reveal].es-visible { opacity: 1; transform: none; }

/* =============================================================
   8. RESPONSIVE
   ============================================================= */
@media (min-width: 540px) {
  .hero-acciones { flex-direction: row; flex-wrap: wrap; }
  .hero-acciones .btn { flex: 1 1 240px; }
  .hero-sellos { flex-direction: row; flex-wrap: wrap; gap: 1.1rem; }
  .zonas-lista { grid-template-columns: repeat(3, 1fr); }
  .contacto-botones { grid-template-columns: 1fr 1fr; }
}

@media (min-width: 720px) {
  .servicios-grid { grid-template-columns: repeat(2, 1fr); }
  .proceso-lista { grid-template-columns: repeat(2, 1fr); column-gap: 2.6rem; }
  .obra-detalle { grid-template-columns: .95fr 1.05fr; }
  .valoracion { grid-template-columns: auto 1fr; gap: 2.4rem; }
  .valoracion-nota { min-width: 210px; }
  .pie-inner { grid-template-columns: 1.4fr 1fr; align-items: start; }
  .pie-legal { grid-column: 1 / -1; }
}

@media (min-width: 960px) {
  /* En ordenador no hace falta la barra fija: hay teléfono en la cabecera */
  body { padding-bottom: 0; }
  .barra-movil { display: none; }

  .nav-links { display: flex; }
  .nav-cta { display: inline-flex; }
  .nav-burger { display: none; }
  .nav-movil { display: none !important; }

  .hero-inner { grid-template-columns: 1.05fr .95fr; gap: clamp(2.2rem, 4.5vw, 3.6rem); }
  .hero-acciones .btn { flex: 0 0 auto; }

  .zonas-inner { grid-template-columns: 1fr 1.05fr; align-items: center; }
}

@media (min-width: 1280px) {
  .servicios-grid { grid-template-columns: repeat(3, 1fr); }
  .hero-titulo { font-size: clamp(2.9rem, 3.8vw, 4.1rem); }
}

/* En pantallas bajas y apaisadas (móvil tumbado) la foto vertical es enorme */
@media (max-width: 959px) and (orientation: landscape) {
  .ba-hero { aspect-ratio: 16 / 10; }
}

/* =============================================================
   9. MOVIMIENTO REDUCIDO
   Solo se apaga lo intrusivo. Los hovers, los fundidos y el
   comparador siguen: Windows trae esta opción puesta de fábrica
   en muchos equipos y si no, la web se ve muerta.
   ============================================================= */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .franja-pista { animation: none; }
}