/* ==========================================================
   A&E Torres · Diseño y Construcción
   ========================================================== */

:root {
    --negro: #120E0B;
    --carbon: #1B1511;
    --carbon-2: #251D18;
    --linea-oscura: rgba(255, 255, 255, .09);
    --naranja: #F16B22;
    --naranja-claro: #FF8B47;
    --oxido: #963703;
    --marron: #481C05;
    --crema: #F7F1EB;
    --arena: #F5D7C7;
    --texto: #251D18;
    --texto-suave: #6E625A;
    --claro-suave: rgba(247, 241, 235, .68);

    --titulos: 'Archivo', 'Arial Narrow', sans-serif;
    --cuerpo: 'DM Sans', system-ui, sans-serif;
    --ancho: 1240px;
    --radio: 4px;
    --curva: cubic-bezier(.2, .7, .1, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; overflow-x: hidden; overflow-x: clip; -webkit-text-size-adjust: 100%; }
body {
    font-family: var(--cuerpo);
    font-size: 17px;
    line-height: 1.65;
    color: var(--texto);
    background: var(--negro);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
    overflow-x: clip;
}
body.bloqueado { overflow: hidden; }
h1, h2, h3 { overflow-wrap: break-word; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: 0; background: none; color: inherit; }
ul, ol { list-style: none; }
svg { fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }

.contenedor { width: 100%; max-width: var(--ancho); margin: 0 auto; padding: 0 28px; }
.seccion { position: relative; padding: 130px 0; }

/* ---------- Tipografía base ---------- */
.etiqueta {
    display: inline-flex; align-items: center; gap: 12px;
    font-family: var(--titulos); font-size: 13px; font-weight: 700;
    letter-spacing: .2em; text-transform: uppercase; color: var(--naranja);
    margin-bottom: 22px;
}
.etiqueta::before { content: ''; width: 34px; height: 2px; background: currentColor; }
.etiqueta--clara { color: var(--naranja-claro); }

.titulo {
    font-family: var(--titulos);
    font-size: clamp(2.3rem, 5vw, 4.1rem);
    font-weight: 800; font-stretch: 85%;
    line-height: 1.02; letter-spacing: -.01em;
    text-transform: uppercase;
    color: var(--texto);
    margin-bottom: 28px;
}
.titulo em { font-style: normal; color: var(--naranja); }
.titulo--claro { color: var(--crema); }

/* ---------- Botones ---------- */
.boton {
    position: relative; overflow: hidden; isolation: isolate;
    display: inline-flex; align-items: center; justify-content: center; gap: 12px;
    padding: 14px 26px;
    font-family: var(--titulos); font-size: 14px; font-weight: 700;
    letter-spacing: .08em; text-transform: uppercase;
    border-radius: var(--radio);
    transition: color .35s, border-color .35s, transform .35s var(--curva);
}
.boton svg { width: 18px; height: 18px; stroke-width: 2.2; transition: transform .35s var(--curva); }
.boton:hover svg { transform: translateX(5px); }
.boton::after {
    content: ''; position: absolute; inset: 0; z-index: -1;
    transform: scaleX(0); transform-origin: right;
    transition: transform .45s var(--curva);
}
.boton:hover::after { transform: scaleX(1); transform-origin: left; }
.boton--grande { padding: 19px 34px; font-size: 15px; }
.boton--bloque { width: 100%; }

.boton--primario { background: var(--naranja); color: #fff; box-shadow: 0 12px 30px -12px rgba(241, 107, 34, .7); }
.boton--primario::after { background: var(--oxido); }
.boton--contorno { color: var(--crema); border: 1.5px solid rgba(247, 241, 235, .45); }
.boton--contorno::after { background: var(--crema); }
.boton--contorno:hover { color: var(--negro); border-color: var(--crema); }
.boton--oscuro { background: var(--negro); color: #fff; }
.boton--oscuro::after { background: var(--carbon-2); }
.boton--oscuro .ico-wa { fill: currentColor; stroke: none; width: 22px; height: 22px; }
.boton--oscuro:hover .ico-wa { transform: none; }

/* ---------- Precarga ---------- */
.precarga {
    position: fixed; inset: 0; z-index: 999;
    display: grid; place-content: center; justify-items: center; gap: 26px;
    background: var(--negro);
    transition: opacity .6s, visibility .6s;
}
.precarga__logo { width: 110px; animation: latido 1.4s ease-in-out infinite; }
.precarga__barra { width: 160px; height: 3px; background: rgba(255, 255, 255, .1); overflow: hidden; }
.precarga__barra span { display: block; height: 100%; width: 40%; background: var(--naranja); animation: barrido 1.1s ease-in-out infinite; }
.precarga.oculta { opacity: 0; visibility: hidden; }
@keyframes latido { 50% { transform: scale(.94); opacity: .75; } }
@keyframes barrido { from { transform: translateX(-100%); } to { transform: translateX(260%); } }

.progreso { position: fixed; top: 0; left: 0; z-index: 120; height: 3px; width: 0; background: linear-gradient(90deg, var(--oxido), var(--naranja)); }

/* ---------- Cabecera ---------- */
.cabecera {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    padding: 22px 0;
    transition: padding .4s, background .4s, box-shadow .4s;
}
.cabecera.fija {
    padding: 12px 0;
    background: rgba(18, 14, 11, .88);
    backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
    box-shadow: 0 1px 0 var(--linea-oscura);
}
.cabecera__fila { display: flex; align-items: center; justify-content: space-between; }
.cabecera__logo img { height: 62px; width: auto; transition: height .4s; }
.cabecera.fija .cabecera__logo img { height: 48px; }

.menu { display: flex; align-items: center; gap: 34px; }
.menu a:not(.boton) {
    position: relative;
    font-family: var(--titulos); font-size: 14px; font-weight: 600;
    letter-spacing: .1em; text-transform: uppercase;
    color: rgba(247, 241, 235, .82); transition: color .3s;
}
.menu a:not(.boton)::after {
    content: ''; position: absolute; left: 0; bottom: -6px;
    width: 100%; height: 2px; background: var(--naranja);
    transform: scaleX(0); transform-origin: left; transition: transform .35s var(--curva);
}
.menu a:not(.boton):hover, .menu a.activo { color: #fff; }
.menu a:not(.boton):hover::after, .menu a.activo::after { transform: scaleX(1); }
.menu__cta { padding: 12px 22px; }

.hamburguesa { display: none; width: 46px; height: 46px; position: relative; z-index: 2; }
.hamburguesa span { position: absolute; left: 11px; width: 24px; height: 2px; background: #fff; transition: transform .35s, opacity .3s; }
.hamburguesa span:nth-child(1) { top: 16px; }
.hamburguesa span:nth-child(2) { top: 22px; }
.hamburguesa span:nth-child(3) { top: 28px; }
.hamburguesa.abierta span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.hamburguesa.abierta span:nth-child(2) { opacity: 0; }
.hamburguesa.abierta span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ---------- Portada ---------- */
.hero {
    position: relative; min-height: 100vh; min-height: 100svh;
    display: flex; flex-direction: column; justify-content: center;
    padding: 150px 0 190px;
    color: var(--crema); overflow: hidden; background: var(--negro);
}
.hero__fondo {
    position: absolute; inset: -6% 0 0; background-size: cover; background-position: center 35%;
    transform: scale(1.12); animation: acercar 18s ease-out forwards;
    will-change: transform;
}
@keyframes acercar { to { transform: scale(1); } }
.hero__velo {
    position: absolute; inset: 0;
    background:
        linear-gradient(90deg, rgba(18, 14, 11, .96) 0%, rgba(18, 14, 11, .82) 38%, rgba(18, 14, 11, .25) 75%, rgba(18, 14, 11, .45) 100%),
        linear-gradient(0deg, rgba(18, 14, 11, 1) 0%, rgba(18, 14, 11, 0) 35%);
}
.hero__reticula {
    position: absolute; inset: 0; pointer-events: none; opacity: .5;
    background-image: linear-gradient(rgba(241, 107, 34, .09) 1px, transparent 1px), linear-gradient(90deg, rgba(241, 107, 34, .09) 1px, transparent 1px);
    background-size: 80px 80px;
    -webkit-mask-image: linear-gradient(90deg, #000 0%, transparent 60%); mask-image: linear-gradient(90deg, #000 0%, transparent 60%);
}
.hero__contenido { position: relative; z-index: 2; }
.hero__titulo {
    font-family: var(--titulos);
    font-size: clamp(3.2rem, min(10.5vw, 15.5vh), 9.6rem);
    font-weight: 900; font-stretch: 78%;
    line-height: .88; letter-spacing: -.02em; text-transform: uppercase;
    margin-bottom: 34px;
}
.hero__titulo .linea { display: block; overflow: hidden; padding-bottom: .04em; }
.hero__titulo .linea > span { display: inline-block; transform: translateY(105%); transition: transform 1.1s var(--curva) var(--d); }
.hero__titulo em {
    font-style: normal; color: transparent;
    -webkit-text-stroke: 2px var(--naranja);
    background: linear-gradient(90deg, var(--naranja) 50%, transparent 50%) 100% 0 / 200% 100% no-repeat;
    -webkit-background-clip: text; background-clip: text;
    transition: background-position 1.2s var(--curva) 1.4s;
}
.hero__texto { max-width: 560px; font-size: 1.18rem; color: var(--claro-suave); margin-bottom: 42px; }
.hero__texto strong { color: #fff; font-weight: 700; }
.hero__acciones { display: flex; flex-wrap: wrap; gap: 16px; }

.anim { opacity: 0; transform: translateY(26px); transition: opacity .9s var(--curva) var(--d), transform .9s var(--curva) var(--d); }
.listo .anim { opacity: 1; transform: none; }
.listo .hero__titulo .linea > span { transform: none; }
.listo .hero__titulo em { background-position: 0 0; }

/* Sello giratorio */
.sello { position: absolute; right: 6%; top: 50%; z-index: 2; width: 190px; height: 190px; transform: translateY(-60%); }
.sello__texto { width: 100%; height: 100%; animation: girar 22s linear infinite; }
.sello__texto text { fill: var(--crema); stroke: none; font-family: var(--titulos); font-size: 13.2px; font-weight: 700; letter-spacing: .18em; }
.sello__centro {
    position: absolute; inset: 42px; border-radius: 50%;
    display: grid; place-content: center; text-align: center;
    background: var(--naranja); color: #fff;
    box-shadow: 0 20px 50px -15px rgba(241, 107, 34, .8);
}
.sello__centro strong { font-family: var(--titulos); font-size: 52px; font-weight: 900; line-height: .9; }
.sello__centro span { font-family: var(--titulos); font-size: 12px; font-weight: 700; letter-spacing: .25em; text-transform: uppercase; }
@keyframes girar { to { transform: rotate(360deg); } }

/* Cifras */
.hero__cifras { position: absolute; left: 0; right: 0; bottom: 0; z-index: 2; border-top: 1px solid var(--linea-oscura); background: rgba(18, 14, 11, .55); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); }
.hero__cifras { padding-bottom: 16px; } /* espacio para la franja inclinada */
.hero__cifras-fila { display: grid; grid-template-columns: repeat(4, 1fr); }
.cifra { display: flex; align-items: center; gap: 16px; padding: 26px 0 26px 28px; border-left: 1px solid var(--linea-oscura); }
.cifra:first-child { border-left: 0; padding-left: 0; }
.cifra strong { font-family: var(--titulos); font-size: 3rem; font-weight: 900; font-stretch: 80%; line-height: 1; color: var(--naranja); }
.cifra > span { font-size: 12.5px; line-height: 1.35; letter-spacing: .04em; text-transform: uppercase; color: var(--claro-suave); }

/* ---------- Franja ---------- */
/* El marco recorta la franja girada para que no ensanche la página */
.franja-marco { position: relative; z-index: 3; overflow: hidden; padding: 30px 0 40px; margin: -44px 0 -54px; pointer-events: none; }
.franja { background: var(--naranja); color: #fff; overflow: hidden; padding: 20px 0; transform: rotate(-1.2deg) scale(1.03); box-shadow: 0 20px 40px -20px rgba(0, 0, 0, .5); }
.franja__pista { display: flex; align-items: center; gap: 34px; width: max-content; animation: desplazar 32s linear infinite; }
.franja span { font-family: var(--titulos); font-size: 26px; font-weight: 800; font-stretch: 85%; letter-spacing: .02em; text-transform: uppercase; white-space: nowrap; }
.franja i { font-style: normal; font-size: 18px; color: var(--marron); }
@keyframes desplazar { to { transform: translateX(-50%); } }

/* ---------- Nosotros ---------- */
.nosotros { background: var(--crema); overflow: hidden; padding-top: 170px; }
.nosotros__marca {
    position: absolute; right: -2%; top: 40px;
    font-family: var(--titulos); font-size: clamp(16rem, 34vw, 32rem); font-weight: 900; font-stretch: 75%; line-height: .8;
    color: transparent; -webkit-text-stroke: 2px rgba(241, 107, 34, .14);
    pointer-events: none; user-select: none;
}
.nosotros__grid { position: relative; display: grid; grid-template-columns: 1fr 1.05fr; gap: 90px; align-items: center; }
.nosotros__visual { position: relative; height: 620px; }
.nosotros__foto { position: absolute; overflow: hidden; border-radius: var(--radio); box-shadow: 0 30px 60px -25px rgba(37, 29, 24, .45); }
.nosotros__foto img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.2s var(--curva); }
.nosotros__foto:hover img { transform: scale(1.06); }
.nosotros__foto--1 { left: 0; top: 0; width: 78%; height: 66%; }
.nosotros__foto--2 { right: 0; bottom: 0; width: 58%; height: 50%; border: 10px solid var(--crema); }
.nosotros__foto--1::after { content: ''; position: absolute; left: 0; bottom: 0; width: 46%; height: 8px; background: var(--naranja); }
.insignia {
    position: absolute; left: 6%; bottom: 4%;
    display: flex; align-items: center; gap: 14px;
    padding: 22px 26px; background: var(--negro); color: var(--crema); border-radius: var(--radio);
    box-shadow: 0 25px 50px -20px rgba(0, 0, 0, .6);
}
.insignia strong { font-family: var(--titulos); font-size: 4.4rem; font-weight: 900; font-stretch: 78%; line-height: .85; color: var(--naranja); }
.insignia span { font-size: 13px; line-height: 1.35; text-transform: uppercase; letter-spacing: .06em; }

.nosotros__texto p { color: var(--texto-suave); margin-bottom: 20px; }
.nosotros__texto .destacado { font-size: 1.3rem; line-height: 1.5; color: var(--texto); }
.nosotros__texto .destacado strong { color: var(--oxido); }

.linea-tiempo { position: relative; margin-top: 40px; padding-left: 30px; }
.linea-tiempo::before { content: ''; position: absolute; left: 6px; top: 8px; bottom: 8px; width: 2px; background: linear-gradient(var(--naranja), rgba(241, 107, 34, .15)); }
.linea-tiempo li { position: relative; display: grid; grid-template-columns: 140px 1fr; gap: 16px; padding: 14px 0; border-bottom: 1px solid rgba(37, 29, 24, .1); }
.linea-tiempo li:last-child { border-bottom: 0; }
.linea-tiempo li::before { content: ''; position: absolute; left: -30px; top: 21px; width: 14px; height: 14px; border-radius: 50%; background: var(--crema); border: 3px solid var(--naranja); }
.linea-tiempo b { font-family: var(--titulos); font-size: 15px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; color: var(--texto); }
.linea-tiempo span { color: var(--texto-suave); font-size: 15.5px; }

/* ---------- Servicios ---------- */
.servicios { background: var(--negro); color: var(--crema); overflow: hidden; }
.servicios::before {
    content: ''; position: absolute; inset: 0; pointer-events: none;
    background: radial-gradient(circle at 85% 0%, rgba(241, 107, 34, .18), transparent 45%), radial-gradient(circle at 0% 100%, rgba(150, 55, 3, .25), transparent 40%);
}
.cabeza-seccion { position: relative; display: flex; justify-content: space-between; align-items: flex-end; gap: 60px; margin-bottom: 70px; }
.cabeza-seccion .titulo { margin-bottom: 0; }
.cabeza-seccion > p { max-width: 430px; color: var(--claro-suave); }

.proceso { position: relative; display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.proceso__linea { position: absolute; left: 0; right: 0; top: 34px; height: 2px; background: var(--linea-oscura); }
.proceso__linea span { display: block; height: 100%; width: 0; background: var(--naranja); box-shadow: 0 0 14px var(--naranja); transition: width .2s linear; }

.servicio {
    position: relative; padding: 0 0 34px;
    transition: transform .5s var(--curva);
}
.servicio__cabeza { display: flex; align-items: center; justify-content: space-between; margin-bottom: 34px; }
.servicio__num {
    position: relative; z-index: 1;
    display: grid; place-content: center; width: 70px; height: 70px; border-radius: 50%;
    font-family: var(--titulos); font-size: 22px; font-weight: 800;
    background: var(--carbon); border: 2px solid var(--linea-oscura); color: var(--crema);
    transition: background .4s, border-color .4s, color .4s, transform .5s var(--curva);
}
.servicio__icono { width: 42px; height: 42px; color: var(--naranja); stroke-width: 1.4; }
.servicio h3 { font-family: var(--titulos); font-size: 1.45rem; font-weight: 800; font-stretch: 88%; line-height: 1.12; text-transform: uppercase; margin-bottom: 14px; }
.servicio > p { color: var(--claro-suave); font-size: 15.5px; margin-bottom: 22px; }
.servicio ul { border-top: 1px solid var(--linea-oscura); }
.servicio li { position: relative; padding: 11px 0 11px 22px; font-size: 14.5px; color: rgba(247, 241, 235, .85); border-bottom: 1px solid var(--linea-oscura); }
.servicio li::before { content: ''; position: absolute; left: 0; top: 20px; width: 9px; height: 2px; background: var(--naranja); }
.servicio:hover { transform: translateY(-8px); }
.servicio:hover .servicio__num, .servicio.activo .servicio__num { background: var(--naranja); border-color: var(--naranja); color: #fff; }
.servicio:hover .servicio__num { transform: scale(1.08); }

/* ---------- Proyectos ---------- */
.proyectos { background: var(--crema); }
.proyectos .cabeza-seccion { align-items: flex-end; }
.filtros { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px; max-width: 560px; }
.filtro {
    padding: 10px 18px; border-radius: 40px;
    font-family: var(--titulos); font-size: 13px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
    color: var(--texto); background: transparent; border: 1.5px solid rgba(37, 29, 24, .18);
    transition: background .3s, color .3s, border-color .3s;
}
.filtro:hover { border-color: var(--naranja); color: var(--naranja); }
.filtro.activo { background: var(--negro); border-color: var(--negro); color: #fff; }

.galeria { display: grid; grid-template-columns: repeat(3, 1fr); grid-auto-rows: 290px; grid-auto-flow: dense; gap: 18px; }
.obra { position: relative; overflow: hidden; border-radius: var(--radio); background: var(--carbon); cursor: zoom-in; }
.obra--grande { grid-column: span 2; grid-row: span 2; }
.obra img { width: 100%; height: 100%; object-fit: cover; transition: transform 1s var(--curva), filter .6s; }
.obra::before { content: ''; position: absolute; inset: 0; z-index: 1; background: linear-gradient(0deg, rgba(18, 14, 11, .92) 0%, rgba(18, 14, 11, .1) 55%, transparent 100%); transition: opacity .5s; }
.obra__info { position: absolute; left: 0; right: 0; bottom: 0; z-index: 2; padding: 26px; color: #fff; transform: translateY(14px); transition: transform .5s var(--curva); }
.obra__cat { display: inline-block; margin-bottom: 10px; padding: 5px 11px; font-family: var(--titulos); font-size: 12px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; background: var(--naranja); border-radius: 2px; }
.obra h3 { font-family: var(--titulos); font-size: 1.35rem; font-weight: 800; font-stretch: 88%; line-height: 1.1; text-transform: uppercase; }
.obra--grande h3 { font-size: 2rem; }
.obra p { font-size: 14.5px; color: rgba(255, 255, 255, .72); opacity: 0; transition: opacity .5s; }
.obra__mas {
    position: absolute; top: 20px; right: 20px; z-index: 2;
    display: grid; place-content: center; width: 48px; height: 48px; border-radius: 50%;
    font-size: 26px; font-weight: 300; color: #fff; background: var(--naranja);
    transform: scale(0) rotate(-90deg); transition: transform .5s var(--curva);
}
.obra:hover img { transform: scale(1.08); }
.obra:hover .obra__info { transform: none; }
.obra:hover p { opacity: 1; }
.obra:hover .obra__mas { transform: none; }
.obra.oculta { display: none; }
.obra--cta {
    display: flex; flex-direction: column; justify-content: flex-end; padding: 30px;
    cursor: pointer; color: #fff;
    background: linear-gradient(135deg, var(--oxido), var(--naranja));
}
.obra--cta::before { background: linear-gradient(rgba(255, 255, 255, .12) 1px, transparent 1px) 0 0 / 34px 34px, linear-gradient(90deg, rgba(255, 255, 255, .12) 1px, transparent 1px) 0 0 / 34px 34px; }
.obra--cta > * { position: relative; z-index: 2; }
.obra--cta .etiqueta { color: #fff; margin-bottom: 14px; }
.obra--cta h3 { font-size: 1.9rem; margin-bottom: 20px; }
.obra--cta__enlace { display: inline-flex; align-items: center; gap: 10px; font-family: var(--titulos); font-size: 14px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
.obra--cta__enlace svg { width: 18px; height: 18px; stroke-width: 2.2; transition: transform .35s var(--curva); }
.obra--cta:hover .obra--cta__enlace svg { transform: translateX(6px); }
.obra.entrando { animation: entrar .6s var(--curva) both; }
@keyframes entrar { from { opacity: 0; transform: scale(.94); } }

/* ---------- Clientes ---------- */
.clientes { background: var(--carbon); color: var(--crema); overflow: hidden; }
.clientes__intro { text-align: center; max-width: 760px; margin: 0 auto 56px; }
.clientes__intro .etiqueta::after { content: ''; width: 34px; height: 2px; background: currentColor; }

.logos { position: relative; overflow: hidden; padding: 6px 0; -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); }
.logos__pista { display: flex; gap: 22px; width: max-content; animation: desplazar 30s linear infinite; }
.logos:hover .logos__pista { animation-play-state: paused; }
.logo-cliente {
    display: grid; place-content: center; width: 260px; height: 120px; padding: 22px 30px;
    background: #fff; border-radius: var(--radio);
    transition: transform .4s var(--curva), box-shadow .4s;
}
.logo-cliente img { max-height: 76px; width: auto; transition: transform .4s var(--curva); }
.logo-cliente:hover { transform: translateY(-6px); box-shadow: 0 0 0 3px var(--naranja); }
.logo-cliente:hover img { transform: scale(1.05); }

.razones { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 90px; border: 1px solid var(--linea-oscura); border-radius: var(--radio); }
.razon { position: relative; padding: 40px 32px; border-left: 1px solid var(--linea-oscura); overflow: hidden; transition: background .4s; }
.razon:first-child { border-left: 0; }
.razon::after { content: ''; position: absolute; left: 0; top: 0; height: 3px; width: 100%; background: var(--naranja); transform: scaleX(0); transform-origin: left; transition: transform .5s var(--curva); }
.razon:hover { background: rgba(241, 107, 34, .06); }
.razon:hover::after { transform: scaleX(1); }
.razon__num { display: block; font-family: var(--titulos); font-size: 3.2rem; font-weight: 900; font-stretch: 78%; line-height: 1; color: transparent; -webkit-text-stroke: 1.5px var(--naranja); margin-bottom: 22px; transition: color .4s; }
.razon:hover .razon__num { color: var(--naranja); }
.razon h3 { font-family: var(--titulos); font-size: 1.15rem; font-weight: 800; letter-spacing: .03em; text-transform: uppercase; margin-bottom: 10px; }
.razon p { font-size: 15px; color: var(--claro-suave); }

/* ---------- Llamado ---------- */
.llamado { position: relative; overflow: hidden; padding: 90px 0; background: linear-gradient(110deg, var(--oxido) 0%, var(--naranja) 60%, var(--naranja-claro) 100%); color: #fff; }
.llamado__reticula { position: absolute; inset: 0; opacity: .35; background-image: linear-gradient(rgba(255, 255, 255, .16) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .16) 1px, transparent 1px); background-size: 46px 46px; -webkit-mask-image: linear-gradient(90deg, transparent 30%, #000); mask-image: linear-gradient(90deg, transparent 30%, #000); }
.llamado__fila { position: relative; display: flex; align-items: center; justify-content: space-between; gap: 40px; }
.llamado .boton { flex: none; white-space: nowrap; }
.llamado h2 { font-family: var(--titulos); font-size: clamp(1.9rem, 3.4vw, 3rem); font-weight: 900; font-stretch: 80%; line-height: 1; text-transform: uppercase; }
.llamado h2 span { color: var(--negro); }

/* ---------- Contacto ---------- */
.contacto { background: var(--negro); color: var(--crema); }
.contacto__grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 80px; align-items: start; }
.contacto__info > p { color: var(--claro-suave); max-width: 440px; margin-bottom: 38px; }
.datos li { display: flex; align-items: center; gap: 18px; padding: 18px 0; border-top: 1px solid var(--linea-oscura); }
.datos li:last-child { border-bottom: 1px solid var(--linea-oscura); }
.datos svg { flex: none; width: 48px; height: 48px; padding: 12px; border-radius: 50%; background: rgba(241, 107, 34, .12); color: var(--naranja); }
.datos small { display: block; font-size: 12px; letter-spacing: .14em; text-transform: uppercase; color: var(--claro-suave); }
.datos a, .datos span { font-size: 1.1rem; font-weight: 500; color: #fff; }
.datos a:hover { color: var(--naranja); }
.redes { display: flex; gap: 12px; margin-top: 32px; }
.redes a { display: grid; place-content: center; width: 50px; height: 50px; border-radius: 50%; border: 1.5px solid var(--linea-oscura); transition: background .3s, border-color .3s, transform .3s var(--curva); }
.redes svg { width: 20px; height: 20px; }
.redes a:hover { background: var(--naranja); border-color: var(--naranja); transform: translateY(-4px); }

.formulario { position: relative; padding: 48px; background: var(--carbon); border: 1px solid var(--linea-oscura); border-radius: 6px; box-shadow: 0 40px 80px -40px rgba(0, 0, 0, .8); }
.formulario::before { content: ''; position: absolute; left: 48px; top: -1px; width: 90px; height: 4px; background: var(--naranja); }
.formulario h3 { font-family: var(--titulos); font-size: 1.6rem; font-weight: 800; font-stretch: 88%; line-height: 1.1; text-transform: uppercase; margin-bottom: 30px; }
.formulario__fila { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.campo { position: relative; display: block; margin-bottom: 18px; }
.campo input, .campo select, .campo textarea {
    width: 100%; padding: 24px 18px 10px;
    font: inherit; font-size: 16px; color: #fff;
    background: rgba(255, 255, 255, .04); border: 1.5px solid var(--linea-oscura); border-radius: var(--radio);
    outline: none; resize: vertical; appearance: none; -webkit-appearance: none;
    transition: border-color .3s, background .3s;
}
.campo select { cursor: pointer; }
.campo select option { color: var(--texto); }
.campo--select::after { content: ''; position: absolute; right: 20px; top: 26px; width: 8px; height: 8px; border-right: 2px solid var(--naranja); border-bottom: 2px solid var(--naranja); transform: rotate(45deg); pointer-events: none; }
.campo > span { position: absolute; left: 19px; top: 17px; font-size: 15.5px; color: var(--claro-suave); pointer-events: none; transition: top .25s, font-size .25s, color .25s; }
.campo input:focus, .campo select:focus, .campo textarea:focus { border-color: var(--naranja); background: rgba(241, 107, 34, .05); }
.campo input:focus + span, .campo input:not(:placeholder-shown) + span,
.campo textarea:focus + span, .campo textarea:not(:placeholder-shown) + span,
.campo select:focus + span, .campo select:valid + span { top: 7px; font-size: 11.5px; letter-spacing: .1em; text-transform: uppercase; color: var(--naranja); }
.campo.error input, .campo.error select, .campo.error textarea { border-color: #E5484D; }
.trampa { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.formulario .boton[disabled] { opacity: .7; pointer-events: none; }
.formulario__aviso { min-height: 24px; margin-top: 16px; font-size: 15px; text-align: center; }
.formulario__aviso.ok { color: #5BD18B; }
.formulario__aviso.mal { color: #FF7A7E; }

/* ---------- Pie ---------- */
.pie { background: #0C0907; color: var(--claro-suave); padding-top: 70px; }
.pie__fila { display: flex; align-items: center; justify-content: space-between; gap: 40px; padding-bottom: 50px; }
.pie__logo { height: 84px; width: auto; }
.pie__fila p { font-size: 15px; line-height: 1.6; }
.pie nav { display: flex; gap: 28px; }
.pie nav a { font-family: var(--titulos); font-size: 13px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; transition: color .3s; }
.pie nav a:hover { color: var(--naranja); }
.pie__legal { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 24px 28px; border-top: 1px solid var(--linea-oscura); font-size: 13.5px; }
.pie__creditos { display: flex; flex-wrap: wrap; gap: 6px 28px; }
.pie__creditos a { display: inline-block; padding: 10px 0; margin: -10px 0; color: var(--naranja); font-weight: 700; transition: color .3s; }
.pie .pie__fila { padding-bottom: 50px; } /* más específico que .contenedor en móvil */
.pie__creditos a:hover { color: #fff; }
.subir { flex: none; display: grid; place-content: center; width: 42px; height: 42px; border-radius: 50%; background: var(--naranja); color: #fff; font-size: 18px; transition: transform .3s var(--curva); }
.subir:hover { transform: translateY(-4px); }

/* ---------- WhatsApp flotante ---------- */
.wa-flotante {
    position: fixed; right: 24px; bottom: 24px; z-index: 90;
    display: grid; place-content: center; width: 62px; height: 62px; border-radius: 50%;
    background: #25D366; color: #fff; box-shadow: 0 14px 30px -8px rgba(37, 211, 102, .6);
    transform: scale(0); transition: transform .5s var(--curva);
}
.wa-flotante.visible { transform: scale(1); }
.wa-flotante svg { width: 32px; height: 32px; fill: currentColor; stroke: none; }
.wa-flotante::before { content: ''; position: absolute; inset: 0; border-radius: 50%; background: #25D366; z-index: -1; animation: pulso 2.2s ease-out infinite; }
@keyframes pulso { to { transform: scale(1.7); opacity: 0; } }

/* ---------- Visor ---------- */
.visor { position: fixed; inset: 0; z-index: 200; display: flex; align-items: center; justify-content: center; padding: 40px 90px; background: rgba(12, 9, 7, .95); opacity: 0; visibility: hidden; transition: opacity .4s, visibility .4s; }
.visor.abierto { opacity: 1; visibility: visible; }
.visor figure { max-width: 1200px; transform: scale(.95); transition: transform .5s var(--curva); }
.visor.abierto figure { transform: none; }
.visor img { max-height: 78vh; width: auto; margin: 0 auto; border-radius: var(--radio); }
.visor figcaption { margin-top: 18px; text-align: center; color: var(--crema); font-family: var(--titulos); font-size: 1.2rem; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; }
.visor figcaption small { display: block; font-family: var(--cuerpo); font-size: 14px; font-weight: 400; letter-spacing: 0; text-transform: none; color: var(--claro-suave); }
.visor__cerrar { position: absolute; top: 20px; right: 26px; font-size: 44px; line-height: 1; color: #fff; }
.visor__nav { position: absolute; top: 50%; transform: translateY(-50%); width: 56px; height: 56px; border-radius: 50%; font-size: 34px; line-height: 1; color: #fff; border: 1.5px solid rgba(255, 255, 255, .25); transition: background .3s, border-color .3s; }
.visor__nav:hover, .visor__cerrar:hover { background: var(--naranja); border-color: var(--naranja); }
.visor__cerrar:hover { background: none; color: var(--naranja); }
.visor__nav--prev { left: 22px; }
.visor__nav--sig { right: 22px; }

/* ---------- Revelado al hacer scroll ---------- */
[data-revelar] { opacity: 0; transform: translateY(40px); transition: opacity 1s var(--curva) var(--d, 0s), transform 1s var(--curva) var(--d, 0s); }
[data-revelar].visible { opacity: 1; transform: none; }


/* ---------- Responsive ---------- */
@media (max-width: 1280px) {
    .menu { gap: 26px; }
}

@media (max-width: 1100px) {
    .sello { display: none; }
    .menu { gap: 20px; }
    .menu a:not(.boton) { font-size: 13px; letter-spacing: .08em; }
    .menu__cta { padding: 11px 16px; font-size: 13px; }
    .proceso { grid-template-columns: repeat(2, 1fr); row-gap: 50px; column-gap: 40px; }
    .proceso__linea { display: none; }
    .razones { grid-template-columns: repeat(2, 1fr); }
    .razon:nth-child(3) { border-left: 0; }
    .razon:nth-child(n+3) { border-top: 1px solid var(--linea-oscura); }
    .nosotros__grid { gap: 50px; }
    .nosotros__visual { height: 540px; }
    .contacto__grid { gap: 50px; }
    .formulario { padding: 40px 34px; }
    .formulario::before { left: 34px; }
    .llamado h2 { max-width: 620px; }
}

@media (max-width: 920px) {
    .seccion { padding: 100px 0; }
    .hamburguesa { display: block; }
    .menu {
        position: fixed; inset: 0; flex-direction: column; justify-content: center; gap: 22px;
        padding: 90px 24px 40px; overflow-y: auto;
        background: var(--negro);
        clip-path: circle(0 at calc(100% - 50px) 45px); transition: clip-path .7s var(--curva), visibility .7s;
        visibility: hidden;
    }
    .menu.abierto { clip-path: circle(150% at calc(100% - 50px) 45px); visibility: visible; }
    .menu a:not(.boton) { font-size: 26px; font-weight: 800; letter-spacing: .1em; opacity: 0; transform: translateY(20px); transition: opacity .5s, transform .5s var(--curva), color .3s; }
    .menu .menu__cta { margin-top: 10px; padding: 16px 30px; font-size: 14px; opacity: 0; transition: opacity .5s; }
    .menu.abierto a { opacity: 1 !important; transform: none !important; }
    .menu.abierto a:nth-child(1) { transition-delay: .15s; }
    .menu.abierto a:nth-child(2) { transition-delay: .2s; }
    .menu.abierto a:nth-child(3) { transition-delay: .25s; }
    .menu.abierto a:nth-child(4) { transition-delay: .3s; }
    .menu.abierto a:nth-child(5) { transition-delay: .35s; }
    .menu.abierto a:nth-child(6) { transition-delay: .4s; }
    /* backdrop-filter encerraría al menú fijo dentro de la cabecera */
    .cabecera.menu-abierto { backdrop-filter: none; -webkit-backdrop-filter: none; background: transparent; box-shadow: none; }
    .cabecera__logo { position: relative; z-index: 2; }
    .cabecera__logo img { height: 50px; }
    .cabecera.fija .cabecera__logo img { height: 42px; }

    .hero { padding: 140px 0 250px; }
    .hero__fondo { inset: 0; }
    .hero__cifras-fila { grid-template-columns: repeat(2, 1fr); }
    .cifra { padding: 18px 0 18px 20px; }
    .cifra:nth-child(3) { border-left: 0; padding-left: 0; }
    .cifra:nth-child(n+3) { border-top: 1px solid var(--linea-oscura); }
    .cifra strong { font-size: 2.4rem; }

    .nosotros { padding-top: 140px; }
    .nosotros__grid, .contacto__grid { grid-template-columns: 1fr; }
    .nosotros__visual { height: 500px; width: 100%; max-width: 640px; }
    .cabeza-seccion { flex-direction: column; align-items: flex-start; gap: 24px; margin-bottom: 50px; }
    .cabeza-seccion > p { max-width: 600px; }
    .filtros { justify-content: flex-start; max-width: none; }
    .galeria { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 250px; gap: 14px; }
    .obra--grande h3 { font-size: 1.6rem; }
    .razones { margin-top: 64px; }
    .llamado { padding: 70px 0; }
    .llamado__fila { flex-direction: column; align-items: flex-start; gap: 30px; }
    .contacto__info > p { max-width: none; }
    .pie__fila { flex-direction: column; align-items: flex-start; gap: 24px; }
}

@media (max-width: 600px) {
    body { font-size: 16px; }
    .contenedor { padding: 0 18px; }
    .seccion { padding: 76px 0; }
    .etiqueta { font-size: 12px; letter-spacing: .16em; gap: 10px; margin-bottom: 18px; }
    .etiqueta::before { width: 24px; }
    .titulo { font-size: clamp(2rem, 9.4vw, 2.6rem); margin-bottom: 22px; }

    .boton--grande { padding: 17px 22px; font-size: 14px; letter-spacing: .06em; }

    .cabecera { padding: 16px 0; }
    .cabecera__logo img { height: 44px; }
    .cabecera.fija .cabecera__logo img { height: 38px; }
    .hero { padding: 116px 0 230px; }
    .hero__titulo { font-size: clamp(3rem, 16.5vw, 5rem); margin-bottom: 24px; }
    .hero__texto { font-size: 1.04rem; margin-bottom: 32px; }
    .hero__acciones { gap: 12px; }
    .hero__acciones .boton { width: 100%; }
    .cifra { flex-direction: column; align-items: flex-start; gap: 6px; padding: 16px 0 16px 16px; }
    .cifra strong { font-size: 2.1rem; }
    .cifra > span { font-size: 12px; }
    .cifra > span br { display: none; }
    .franja { padding: 15px 0; }
    .franja span { font-size: 19px; }
    .franja__pista { gap: 24px; }

    .nosotros { padding-top: 110px; }
    .nosotros__visual { height: 390px; }
    .nosotros__foto--2 { border-width: 6px; }
    .insignia { padding: 14px 16px; left: 0; bottom: 0; gap: 10px; }
    .insignia strong { font-size: 3rem; }
    .insignia span { font-size: 12px; }
    .nosotros__texto .destacado { font-size: 1.14rem; }
    .linea-tiempo { margin-top: 30px; }
    .linea-tiempo li { grid-template-columns: 1fr; gap: 2px; }

    .proceso { grid-template-columns: 1fr; row-gap: 46px; }
    .servicio { padding-bottom: 0; }
    .servicio__cabeza { margin-bottom: 22px; }
    .servicio__num { width: 58px; height: 58px; font-size: 19px; }
    .servicio h3 { font-size: 1.3rem; }

    /* Filtros en una fila deslizable */
    .filtros {
        flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; -webkit-overflow-scrolling: touch;
        width: calc(100% + 36px); margin: 0 -18px; padding: 0 18px 4px;
    }
    .filtros::-webkit-scrollbar { display: none; }
    .filtro { flex: none; padding: 10px 16px; }
    .galeria { grid-template-columns: 1fr; grid-auto-rows: 250px; gap: 12px; }
    .obra--grande { grid-column: auto; grid-row: span 1; }
    .obra__info { padding: 20px; transform: none; }
    .obra h3, .obra--grande h3 { font-size: 1.3rem; }
    .obra p { opacity: 1; }
    .obra__mas { width: 40px; height: 40px; font-size: 22px; top: 14px; right: 14px; transform: none; }
    .obra--cta { padding: 24px; }
    .obra--cta h3 { font-size: 1.55rem; }

    .clientes__intro { margin-bottom: 40px; }
    .clientes__intro .etiqueta::after { width: 24px; }
    .logos__pista { gap: 14px; }
    .logo-cliente { width: 190px; height: 92px; padding: 16px 22px; }
    .logo-cliente img { max-height: 60px; }
    .razones { grid-template-columns: 1fr; margin-top: 50px; }
    .razon { padding: 30px 24px; border-left: 0; border-top: 1px solid var(--linea-oscura); }
    .razon:first-child { border-top: 0; }
    .razon__num { font-size: 2.6rem; margin-bottom: 14px; }

    .llamado { padding: 60px 0; }
    .llamado h2 { font-size: clamp(1.75rem, 8.4vw, 2.3rem); }
    .llamado .boton { width: 100%; white-space: normal; }

    .datos a, .datos span { font-size: 1rem; overflow-wrap: anywhere; }
    .datos svg { width: 44px; height: 44px; padding: 11px; }
    .formulario { padding: 32px 20px; }
    .formulario::before { left: 20px; }
    .formulario h3 { font-size: 1.4rem; margin-bottom: 24px; }
    .formulario__fila { grid-template-columns: 1fr; gap: 0; }

    .pie { padding-top: 56px; }
    .pie .pie__fila { padding-bottom: 40px; }
    .pie__logo { height: 70px; }
    .pie nav { flex-wrap: wrap; gap: 14px 22px; }
    .pie__legal { padding: 20px 18px; font-size: 13px; }
    .wa-flotante { right: 16px; bottom: 16px; width: 56px; height: 56px; }
    .wa-flotante svg { width: 29px; height: 29px; }
    .visor { padding: 20px 12px 100px; }
    .visor img { max-height: 70vh; }
    .visor__nav { top: auto; bottom: 26px; transform: none; }
    .visor__nav--prev { left: calc(50% - 70px); }
    .visor__nav--sig { right: calc(50% - 70px); }
}

@media (max-width: 360px) {
    .contenedor { padding: 0 16px; }
    .filtros { width: calc(100% + 32px); margin: 0 -16px; padding: 0 16px 4px; }
    .hero__titulo { font-size: 3rem; }
    .boton--grande { padding: 16px 18px; font-size: 13.5px; }
    .cifra strong { font-size: 1.9rem; }
    .nosotros__visual { height: 340px; }
    .obra h3, .obra--grande h3 { font-size: 1.2rem; }
    .logo-cliente { width: 170px; height: 84px; }
}

/* Laptops con poca altura (1366×768, 1280×720…): que la portada y sus cifras entren en pantalla */
@media (min-width: 921px) and (max-height: 820px) {
    .hero { padding: 116px 0 150px; }
    .hero__titulo { font-size: clamp(3.2rem, min(10.5vw, 12.5vh), 9.6rem); margin-bottom: 24px; }
    .hero__texto { margin-bottom: 30px; }
    .hero .etiqueta { margin-bottom: 16px; }
    .cifra { padding-top: 20px; padding-bottom: 20px; }
}

/* Teléfonos en horizontal y pantallas bajas */
@media (max-height: 520px) and (orientation: landscape) {
    .hero { padding-top: 100px; }
    .hero__titulo { font-size: clamp(2.8rem, 9vw, 4.4rem); }
    .menu { justify-content: flex-start; gap: 14px; }
    .menu a:not(.boton) { font-size: 20px; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}