/* ==========================================================================
   Construcciones Allonca — estilos
   Paleta tomada del logo: azul real #00309A, azul acero #386898, gris #9A9A9A, negro.
   ========================================================================== */

@font-face {
  font-family: "Montserrat";
  src: url("../fonts/montserrat-latin-wght-normal.woff2") format("woff2");
  font-weight: 100 900;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Public Sans";
  src: url("../fonts/public-sans-latin-wght-normal.woff2") format("woff2");
  font-weight: 100 900;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

:root {
  --blue-950: #00123a;
  --blue-900: #001f63;
  --blue-700: #00309a;   /* "Allonca" en el logo */
  --blue-600: #1a4aa8;
  --blue-500: #386898;   /* "Construcciones" y cubo en el logo */
  --blue-200: #c9d6e8;
  --blue-100: #e3eaf4;
  --blue-50: #f2f5fa;
  --grey-500: #9a9a9a;   /* base de la grúa/cubo */
  --ink: #0c1322;
  --ink-soft: #3d4860;
  --paper: #ffffff;
  --line: #d6dce8;

  --font-display: "Montserrat", "Segoe UI", system-ui, sans-serif;
  --font-body: "Public Sans", "Segoe UI", system-ui, sans-serif;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --maxw: 1240px;
  --header-h: 76px;
  --radius: 4px;

  /* Cercha tipo Warren, el motivo de la grúa del logo */
  --truss: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='56' height='28' viewBox='0 0 56 28'%3E%3Cpath d='M0 1h56M0 27h56M0 27L28 1l28 26' fill='none' stroke='%23386898' stroke-width='2'/%3E%3C/svg%3E");
  --truss-light: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='56' height='28' viewBox='0 0 56 28'%3E%3Cpath d='M0 1h56M0 27h56M0 27L28 1l28 26' fill='none' stroke='%23ffffff' stroke-opacity='.35' stroke-width='2'/%3E%3C/svg%3E");
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; scroll-padding-top: calc(var(--header-h) + 12px); }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-underline-offset: 0.22em; text-decoration-thickness: 1px; }
h1, h2, h3, h4 { font-family: var(--font-display); line-height: 1.08; margin: 0; text-wrap: balance; letter-spacing: -0.02em; }
p { margin: 0; text-wrap: pretty; }
ul { margin: 0; padding: 0; list-style: none; }
button { font: inherit; color: inherit; cursor: pointer; }

::selection { background: var(--blue-700); color: #fff; }
:focus-visible { outline: 3px solid var(--blue-500); outline-offset: 3px; border-radius: 2px; }
.on-blue :focus-visible, .hero :focus-visible, .lightbox :focus-visible { outline-color: #fff; }
html { scrollbar-color: var(--blue-500) var(--blue-50); }
::-webkit-scrollbar { width: 12px; height: 12px; }
::-webkit-scrollbar-track { background: var(--blue-50); }
::-webkit-scrollbar-thumb { background: var(--blue-500); border: 3px solid var(--blue-50); border-radius: 8px; }
input, textarea, select { caret-color: var(--blue-700); accent-color: var(--blue-700); }

.skip { position: absolute; left: 1rem; top: -4rem; background: var(--blue-700); color: #fff; padding: .6rem 1rem; z-index: 200; border-radius: var(--radius); }
.skip:focus { top: 1rem; }
.wrap { width: min(100% - 2 * var(--gutter), var(--maxw)); margin-inline: auto; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.icon { width: 1.25em; height: 1.25em; flex: none; stroke: currentColor; fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.icon--fill { fill: currentColor; stroke: none; }

/* ---------- Botones ---------- */
.btn {
  --bg: var(--blue-700); --fg: #fff; --bd: var(--blue-700);
  display: inline-flex; align-items: center; justify-content: center; gap: .6rem;
  padding: .95rem 1.5rem; min-height: 3.1rem;
  background: var(--bg); color: var(--fg); border: 2px solid var(--bd); border-radius: var(--radius);
  font-family: var(--font-display); font-weight: 700; font-size: .95rem; letter-spacing: .01em; text-decoration: none;
  transition: background-color .25s var(--ease-out), color .25s var(--ease-out), border-color .25s var(--ease-out), transform .25s var(--ease-out), box-shadow .25s var(--ease-out);
}
.btn .icon { transition: transform .3s var(--ease-out); }
.btn:hover { --bg: var(--blue-900); --bd: var(--blue-900); box-shadow: 0 10px 24px -10px rgb(0 31 99 / .55); }
.btn:hover .icon--arrow { transform: translateX(4px); }
.btn:active { transform: translateY(1px) scale(.985); }
.btn--light { --bg: #fff; --fg: var(--blue-700); --bd: #fff; }
.btn--light:hover { --bg: var(--blue-100); --bd: var(--blue-100); box-shadow: 0 10px 24px -10px rgb(0 0 0 / .5); }
.btn--ghost { --bg: transparent; --fg: #fff; --bd: rgb(255 255 255 / .7); }
.btn--ghost:hover { --bg: #fff; --fg: var(--blue-700); --bd: #fff; box-shadow: none; }
.btn--outline { --bg: transparent; --fg: var(--blue-700); --bd: var(--blue-700); }
.btn--outline:hover { --bg: var(--blue-700); --fg: #fff; --bd: var(--blue-700); }
.btn[disabled] { opacity: .6; pointer-events: none; }

/* ---------- Cabecera ---------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100; height: var(--header-h);
  display: flex; align-items: center;
  background: rgb(255 255 255 / .96);
  backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow .3s var(--ease-out);
}
.site-header.is-scrolled { box-shadow: 0 8px 30px -18px rgb(0 18 58 / .45); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; }
.brand { display: flex; align-items: center; flex: none; }
.brand img { height: 46px; width: auto; }
.nav { display: flex; align-items: center; gap: .25rem; }
.nav a {
  position: relative; padding: .6rem .95rem; text-decoration: none;
  font-family: var(--font-display); font-weight: 600; font-size: .92rem; color: var(--ink);
  transition: color .2s var(--ease-out);
}
.nav a:not(.btn)::after {
  content: ""; position: absolute; left: .95rem; right: .95rem; bottom: .2rem; height: 2px;
  background: var(--blue-700); transform: scaleX(0); transform-origin: left; transition: transform .35s var(--ease-out);
}
.nav a:not(.btn):hover { color: var(--blue-700); }
.nav a:not(.btn):hover::after, .nav a[aria-current="page"]::after { transform: scaleX(1); }
.nav a[aria-current="page"] { color: var(--blue-700); }
.nav .btn { margin-left: .75rem; padding: .7rem 1.2rem; min-height: 2.7rem; font-size: .88rem; color: #fff; }
.menu-btn { display: none; width: 48px; height: 48px; background: none; border: 0; border-radius: var(--radius); position: relative; }
.menu-btn span { position: absolute; left: 12px; right: 12px; height: 2px; background: var(--blue-900); transition: transform .35s var(--ease-out), opacity .2s; }
.menu-btn span:nth-child(1) { top: 16px; }
.menu-btn span:nth-child(2) { top: 23px; }
.menu-btn span:nth-child(3) { top: 30px; }
.menu-btn[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-btn[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-btn[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

main { padding-top: var(--header-h); }
main.has-hero { padding-top: 0; }

/* ---------- Motivo de cercha ---------- */
.truss { height: 28px; background: var(--truss) repeat-x left center; }
.truss--light { background-image: var(--truss-light); }

/* ---------- Hero con slider ---------- */
.hero { position: relative; min-height: max(620px, 100svh); display: flex; align-items: flex-end; color: #fff; background: var(--blue-950); overflow: hidden; isolation: isolate; }
.slides { position: absolute; inset: 0; z-index: -2; }
.slide { position: absolute; inset: 0; opacity: 0; transition: opacity 1.4s var(--ease-out); }
.slide img { width: 100%; height: 100%; object-fit: cover; transform: scale(1.08); }
.slide.is-active { opacity: 1; z-index: 1; }
.slide.is-active img { animation: drift 9s linear forwards; }
@keyframes drift { from { transform: scale(1.08); } to { transform: scale(1); } }
.hero::before { content: ""; position: absolute; inset: 0; z-index: -1; background:
  linear-gradient(90deg, rgb(0 18 58 / .88) 0%, rgb(0 18 58 / .62) 42%, rgb(0 18 58 / .1) 78%),
  linear-gradient(0deg, rgb(0 18 58 / .75) 0%, transparent 38%); }
.hero-inner { width: min(100% - 2 * var(--gutter), var(--maxw)); margin-inline: auto; padding: calc(var(--header-h) + 3rem) 0 clamp(5.5rem, 10vh, 7.5rem); }
.hero h1 { font-size: clamp(2.1rem, 8.2vw, 5.25rem); font-weight: 800; letter-spacing: -0.03em; }
.hero h1 span { display: block; }
.hero p.lead { margin-top: 1.5rem; max-width: 46ch; font-size: clamp(1.05rem, 1.6vw, 1.3rem); color: #e6edf8; line-height: 1.55; }
.hero-actions { margin-top: 2.25rem; display: flex; flex-wrap: wrap; gap: .85rem; }
.hero-controls { position: absolute; right: var(--gutter); bottom: clamp(1.5rem, 4vh, 2.5rem); display: flex; align-items: center; gap: 1.25rem; }
.hero-bars { display: flex; gap: 6px; }
.hero-bars button { width: 34px; height: 24px; padding: 0; background: none; border: 0; position: relative; }
.hero-bars button::before { content: ""; position: absolute; left: 0; right: 0; top: 11px; height: 3px; background: rgb(255 255 255 / .35); }
.hero-bars button::after { content: ""; position: absolute; left: 0; top: 11px; height: 3px; width: 100%; background: #fff; transform: scaleX(0); transform-origin: left; }
.hero-bars button.is-active::after { animation: fill var(--slide-ms, 6500ms) linear forwards; }
.hero.is-paused .hero-bars button.is-active::after { animation-play-state: paused; }
@keyframes fill { to { transform: scaleX(1); } }
.hero-arrows { display: flex; gap: .5rem; }
.hero-arrows button { width: 48px; height: 48px; display: grid; place-items: center; background: rgb(255 255 255 / .12); border: 1px solid rgb(255 255 255 / .5); border-radius: 50%; color: #fff; transition: background-color .2s, color .2s, transform .2s var(--ease-out); }
.hero-arrows button:hover { background: #fff; color: var(--blue-700); }
.hero-arrows button:active { transform: scale(.94); }
.hero .truss { position: absolute; left: 0; right: 0; bottom: 0; opacity: .9; }

/* entrada del titular */
.hero h1 span, .hero p.lead, .hero-actions { opacity: 0; transform: translateY(26px); animation: rise .9s var(--ease-out) forwards; }
.hero h1 span:nth-child(1) { animation-delay: .1s; }
.hero h1 span:nth-child(2) { animation-delay: .2s; }
.hero h1 span:nth-child(3) { animation-delay: .3s; }
.hero p.lead { animation-delay: .5s; }
.hero-actions { animation-delay: .65s; }
@keyframes rise { to { opacity: 1; transform: none; } }

/* ---------- Secciones ---------- */
.section { padding: clamp(4rem, 9vw, 7.5rem) 0; }
.section--tint { background: var(--blue-50); }
.on-blue { background: var(--blue-700); color: #fff; }
.section-title { font-size: clamp(2rem, 4.4vw, 3.4rem); font-weight: 800; }
.section-title--sm { font-size: clamp(1.7rem, 3.4vw, 2.5rem); }

/* Intro */
.intro { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(2rem, 6vw, 6rem); align-items: start; }
.intro .big { font-family: var(--font-display); font-weight: 600; font-size: clamp(1.35rem, 2.4vw, 2rem); line-height: 1.35; letter-spacing: -0.015em; color: var(--ink); }
.intro .big strong { color: var(--blue-700); font-weight: 700; }
.intro p + p { margin-top: 1.25rem; color: var(--ink-soft); max-width: 62ch; }
.link-arrow { display: inline-flex; align-items: center; gap: .55rem; margin-top: 1.75rem; font-family: var(--font-display); font-weight: 700; color: var(--blue-700); text-decoration: none; border-bottom: 2px solid var(--blue-700); padding-bottom: .2rem; }
.link-arrow .icon { transition: transform .3s var(--ease-out); }
.link-arrow:hover .icon { transform: translateX(5px); }

/* Servicios */
.services { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(2rem, 6vw, 6rem); align-items: stretch; }
.services-photo { position: relative; min-height: 420px; border-radius: var(--radius); overflow: hidden; }
.services-photo img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.services-photo::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 28px; background: var(--truss-light) repeat-x; }
.service-list { margin-top: 2rem; border-top: 1px solid var(--line); }
.service-list li { border-bottom: 1px solid var(--line); }
.service-list a, .service-list div { display: flex; align-items: baseline; justify-content: space-between; gap: 1.5rem; padding: 1.05rem .25rem; transition: padding .35s var(--ease-out), color .25s; }
.service-list li:hover > * { padding-left: 1rem; color: var(--blue-700); }
.service-list b { font-family: var(--font-display); font-weight: 700; font-size: clamp(1.1rem, 1.7vw, 1.35rem); letter-spacing: -0.01em; }
.service-list span { color: var(--ink-soft); font-size: .95rem; text-align: right; max-width: 24ch; }

/* Mosaico de obra */
.mosaic-head { display: flex; align-items: end; justify-content: space-between; gap: 2rem; flex-wrap: wrap; margin-bottom: 2.5rem; }
.mosaic { display: grid; grid-template-columns: repeat(12, 1fr); grid-auto-rows: clamp(120px, 14vw, 190px); gap: clamp(.6rem, 1.2vw, 1rem); }
.tile { position: relative; overflow: hidden; border-radius: var(--radius); background: var(--blue-100); display: block; text-decoration: none; color: #fff; }
.tile img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .9s var(--ease-out); }
.tile::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, rgb(0 18 58 / .8), transparent 55%); opacity: .9; transition: opacity .4s; }
.tile:hover img { transform: scale(1.06); }
.tile span { position: absolute; left: 1.1rem; right: 1.1rem; bottom: 1rem; z-index: 1; font-family: var(--font-display); font-weight: 700; font-size: 1.05rem; display: flex; align-items: center; justify-content: space-between; gap: .75rem; }
.tile span .icon { transform: translateX(-6px); opacity: 0; transition: transform .35s var(--ease-out), opacity .3s; }
.tile:hover span .icon { transform: none; opacity: 1; }
.t1 { grid-column: 1 / span 7; grid-row: span 3; }
.t2 { grid-column: 8 / span 5; grid-row: span 2; }
.t3 { grid-column: 8 / span 5; grid-row: span 1; }
.t4 { grid-column: 1 / span 4; grid-row: span 2; }
.t5 { grid-column: 5 / span 4; grid-row: span 2; }
.t6 { grid-column: 9 / span 4; grid-row: span 2; }

/* Reveal (el contenido es visible si no hay JS) */
.js .reveal { opacity: 0; transform: translateY(28px); transition: opacity .9s var(--ease-out), transform .9s var(--ease-out); transition-delay: var(--d, 0s); }
.js .reveal.is-in { opacity: 1; transform: none; }

/* CTA azul */
.cta { position: relative; overflow: hidden; }
.cta .wrap { position: relative; display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 2.5rem; align-items: center; padding-block: clamp(4rem, 8vw, 6.5rem); }
.cta h2 { font-size: clamp(2rem, 4.6vw, 3.6rem); font-weight: 800; max-width: 16ch; }
.cta p { margin-top: 1.25rem; color: #dbe5f5; max-width: 46ch; }
.cta-actions { display: flex; flex-direction: column; gap: .85rem; align-items: stretch; }
.cta .truss { position: absolute; left: 0; right: 0; }
.cta .truss.top { top: 0; } .cta .truss.bottom { bottom: 0; }

/* ---------- Encabezado de página interior ---------- */
.page-head { position: relative; color: #fff; background: var(--blue-950); overflow: hidden; isolation: isolate; }
.page-head > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -2; }
.page-head::before { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(90deg, rgb(0 18 58 / .92), rgb(0 18 58 / .6) 60%, rgb(0 18 58 / .35)); }
.page-head .wrap { padding-block: clamp(4rem, 9vw, 7rem) clamp(4.5rem, 9vw, 7rem); }
.page-head h1 { font-size: clamp(2.4rem, 6vw, 4.6rem); font-weight: 800; max-width: 17ch; }
.page-head p { margin-top: 1.25rem; max-width: 52ch; color: #e0e8f5; font-size: 1.15rem; }
.page-head .truss { position: absolute; left: 0; right: 0; bottom: 0; }

/* ---------- Nosotros ---------- */
.about { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 7fr); gap: clamp(2rem, 7vw, 7rem); }
.about aside { position: sticky; top: calc(var(--header-h) + 2rem); align-self: start; }
.about aside h2 { font-size: clamp(1.8rem, 3.2vw, 2.6rem); font-weight: 800; color: var(--blue-700); }
.about aside img { margin-top: 2rem; border-radius: var(--radius); aspect-ratio: 4 / 5; object-fit: cover; width: 100%; }
.prose p { font-size: clamp(1.1rem, 1.5vw, 1.25rem); line-height: 1.7; color: var(--ink-soft); max-width: 62ch; }
.prose p + p { margin-top: 1.6rem; }
.prose p:first-child { color: var(--ink); font-family: var(--font-display); font-weight: 600; font-size: clamp(1.3rem, 2vw, 1.65rem); line-height: 1.45; letter-spacing: -0.012em; }
.scope { margin-top: 3rem; padding-top: 2rem; border-top: 1px solid var(--line); }
.scope h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 1.1rem; }
.chips { display: flex; flex-wrap: wrap; gap: .6rem; }
.chips li { padding: .55rem 1rem; background: var(--blue-50); border: 1px solid var(--blue-200); border-radius: 100px; font-weight: 600; font-size: .95rem; color: var(--blue-900); }
.values { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin-top: 4rem; border-top: 2px solid var(--blue-700); }
.values > div { padding: 1.75rem 1.75rem 0 0; }
.values > div + div { padding-left: 1.75rem; border-left: 1px solid var(--line); }
.values h3 { font-size: 1.25rem; font-weight: 800; color: var(--blue-700); }
.values p { margin-top: .6rem; color: var(--ink-soft); font-size: 1rem; }
.photo-strip { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: clamp(.6rem, 1.2vw, 1rem); margin-top: clamp(3rem, 6vw, 5rem); }
.photo-strip img { width: 100%; height: clamp(220px, 28vw, 380px); object-fit: cover; border-radius: var(--radius); }

/* ---------- Proyectos ---------- */
.filters-bar { position: sticky; top: var(--header-h); z-index: 50; background: rgb(255 255 255 / .96); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.filters { display: flex; gap: .5rem; overflow-x: auto; padding: .9rem 0; scrollbar-width: none; }
.filters::-webkit-scrollbar { display: none; }
.filters button { flex: none; padding: .6rem 1.1rem; background: transparent; border: 1.5px solid var(--line); border-radius: 100px; font-family: var(--font-display); font-weight: 600; font-size: .88rem; color: var(--ink); transition: background-color .25s, color .25s, border-color .25s; white-space: nowrap; }
.filters button small { opacity: .65; font-weight: 500; margin-left: .35rem; }
.filters button:hover { border-color: var(--blue-700); color: var(--blue-700); }
.filters button[aria-selected="true"] { background: var(--blue-700); border-color: var(--blue-700); color: #fff; }
.gallery-head { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; margin-bottom: 1.75rem; flex-wrap: wrap; }
.gallery-head h2 { font-size: clamp(1.6rem, 3vw, 2.3rem); font-weight: 800; }
.gallery-head p { color: var(--ink-soft); }
.gallery { columns: 3; column-gap: clamp(.6rem, 1.2vw, 1rem); }
.gallery figure { margin: 0 0 clamp(.6rem, 1.2vw, 1rem); break-inside: avoid; }
.gallery button { display: block; width: 100%; padding: 0; border: 0; background: var(--blue-100); border-radius: var(--radius); overflow: hidden; position: relative; }
.gallery img { width: 100%; height: auto; transition: transform .8s var(--ease-out), opacity .6s; opacity: 0; }
.gallery img.is-loaded { opacity: 1; }
.gallery button:hover img { transform: scale(1.045); }
.gallery button::after { content: ""; position: absolute; inset: 0; box-shadow: inset 0 0 0 0 var(--blue-700); transition: box-shadow .25s; border-radius: var(--radius); }
.gallery button:hover::after, .gallery button:focus-visible::after { box-shadow: inset 0 0 0 4px var(--blue-700); }
.more-wrap { text-align: center; margin-top: 2.5rem; }

/* Lightbox */
.lightbox { position: fixed; inset: 0; z-index: 300; background: rgb(0 10 32 / .96); display: none; align-items: center; justify-content: center; color: #fff; }
.lightbox.is-open { display: flex; animation: fade .3s var(--ease-out); }
@keyframes fade { from { opacity: 0; } }
.lightbox figure { margin: 0; max-width: min(94vw, 1500px); }
.lightbox img { max-height: 82vh; width: auto; max-width: 100%; object-fit: contain; margin-inline: auto; border-radius: 2px; }
.lightbox figcaption { margin-top: .9rem; text-align: center; font-size: .95rem; color: #c9d6ee; }
.lb-btn { position: absolute; width: 52px; height: 52px; display: grid; place-items: center; background: rgb(255 255 255 / .1); border: 1px solid rgb(255 255 255 / .35); border-radius: 50%; color: #fff; transition: background-color .2s, color .2s; }
.lb-btn:hover { background: #fff; color: var(--blue-700); }
.lb-close { top: 1rem; right: 1rem; }
.lb-prev { left: 1rem; top: 50%; translate: 0 -50%; }
.lb-next { right: 1rem; top: 50%; translate: 0 -50%; }

/* ---------- Contacto ---------- */
.contact { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(2rem, 6vw, 5.5rem); align-items: start; }
.contact h2 { font-size: clamp(1.7rem, 3vw, 2.4rem); font-weight: 800; }
.info-list { margin-top: 1.75rem; border-top: 1px solid var(--line); }
.info-list li { display: grid; grid-template-columns: 2.4rem 1fr; gap: .75rem; padding: 1.1rem 0; border-bottom: 1px solid var(--line); align-items: start; }
.info-list .icon { width: 1.4rem; height: 1.4rem; color: var(--blue-700); margin-top: .2rem; }
.info-list dt, .info-list .label { font-family: var(--font-display); font-weight: 700; font-size: .85rem; color: var(--ink-soft); }
.info-list a, .info-list address { font-style: normal; font-weight: 600; font-size: 1.1rem; text-decoration: none; word-break: break-word; }
.info-list a:hover { color: var(--blue-700); text-decoration: underline; }
.quick { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 1.75rem; }
.form-card { background: var(--blue-50); border: 1px solid var(--blue-200); border-radius: var(--radius); padding: clamp(1.5rem, 3.5vw, 2.75rem); }
.form-card h2 { font-size: clamp(1.5rem, 2.6vw, 2rem); }
.form-card > p { margin-top: .6rem; color: var(--ink-soft); }
.form { margin-top: 1.75rem; display: grid; grid-template-columns: 1fr 1fr; gap: 1.1rem 1.1rem; }
.field { display: flex; flex-direction: column; gap: .4rem; }
.field.full { grid-column: 1 / -1; }
.field label { font-family: var(--font-display); font-weight: 700; font-size: .85rem; }
.field label i { color: var(--blue-700); font-style: normal; }
.field input, .field select, .field textarea { width: 100%; padding: .85rem 1rem; background: #fff; border: 1.5px solid var(--blue-200); border-radius: var(--radius); font: inherit; color: var(--ink); min-height: 3.1rem; transition: border-color .2s, box-shadow .2s; }
.field textarea { min-height: 9rem; resize: vertical; }
.field input:hover, .field select:hover, .field textarea:hover { border-color: var(--blue-500); }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--blue-700); box-shadow: 0 0 0 4px rgb(0 48 154 / .16); }
.field input:user-invalid, .field textarea:user-invalid { border-color: #b3261e; }
.field ::placeholder { color: #6b7589; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-foot { grid-column: 1 / -1; display: flex; flex-wrap: wrap; align-items: center; gap: 1rem; }
.form-status { flex: 1 1 240px; font-weight: 600; font-size: .98rem; }
.form-status.ok { color: #0b6b3a; }
.form-status.err { color: #b3261e; }
.map { margin-top: clamp(3rem, 6vw, 5rem); }
.map-frame { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); aspect-ratio: 16 / 7; min-height: 340px; background: var(--blue-100); }
.map-frame iframe { width: 100%; height: 100%; border: 0; display: block; }

/* ---------- Pie ---------- */
.site-footer { background: var(--blue-950); color: #cfdaee; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.3fr; gap: 2.5rem; padding-block: 4rem 3rem; }
.footer-brand img { height: 54px; width: auto; background: #fff; padding: .55rem .9rem; border-radius: var(--radius); }
.footer-brand p { margin-top: 1.25rem; max-width: 34ch; font-size: .98rem; }
.site-footer h3 { font-size: .9rem; font-weight: 700; line-height: 1.4; color: #fff; margin-bottom: 1rem; letter-spacing: .01em; }
.site-footer li + li { margin-top: .55rem; }
.site-footer a { text-decoration: none; }
.site-footer a:hover { color: #fff; text-decoration: underline; }
.site-footer .icon { vertical-align: -.2em; margin-right: .5rem; }
.footer-bottom { border-top: 1px solid rgb(255 255 255 / .14); padding-block: 1.25rem; font-size: .88rem; display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; color: #9fb0cf; }

/* ---------- WhatsApp flotante ---------- */
.wa-float { position: fixed; right: clamp(1rem, 3vw, 1.75rem); bottom: clamp(1rem, 3vw, 1.75rem); z-index: 90; display: flex; align-items: center; gap: .65rem; padding: .95rem; background: var(--blue-700); color: #fff; border-radius: 100px; text-decoration: none; font-family: var(--font-display); font-weight: 700; font-size: .92rem; box-shadow: 0 14px 30px -10px rgb(0 31 99 / .7); transition: background-color .25s, transform .3s var(--ease-out); }
.wa-float:hover { background: var(--blue-900); transform: translateY(-3px); }
.wa-float .icon { width: 1.7rem; height: 1.7rem; }
.wa-float span { max-width: 0; overflow: hidden; white-space: nowrap; transition: max-width .45s var(--ease-out), margin .45s var(--ease-out); }
.wa-float:hover span, .wa-float:focus-visible span { max-width: 9rem; margin-right: .5rem; }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .intro, .services, .about, .contact, .cta .wrap { grid-template-columns: 1fr; }
  .about aside { position: static; }
  .about aside img { aspect-ratio: 16 / 10; }
  .services-photo { min-height: 320px; order: -1; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .gallery { columns: 2; }
  .values { grid-template-columns: 1fr; }
  .values > div, .values > div + div { padding: 1.5rem 0; border-left: 0; }
  .values > div + div { border-top: 1px solid var(--line); }
  .cta-actions { flex-direction: row; flex-wrap: wrap; }
}
@media (max-width: 820px) {
  :root { --header-h: 68px; }
  .brand img { height: 40px; }
  .menu-btn { display: block; }
  .nav { position: fixed; inset: var(--header-h) 0 auto 0; flex-direction: column; align-items: stretch; gap: 0; padding: .75rem var(--gutter) 1.5rem; background: #fff; border-bottom: 1px solid var(--line); box-shadow: 0 30px 40px -30px rgb(0 18 58 / .5); transform: translateY(-110%); visibility: hidden; transition: transform .45s var(--ease-out), visibility 0s .45s; }
  .nav.is-open { transform: none; visibility: visible; transition: transform .45s var(--ease-out); }
  .nav a { padding: 1rem .25rem; font-size: 1.1rem; border-bottom: 1px solid var(--line); }
  .nav a:not(.btn)::after { display: none; }
  .nav .btn { margin: 1.25rem 0 0; justify-content: center; border-bottom: 2px solid var(--bd); }
  .mosaic { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 150px; }
  .t1 { grid-column: 1 / -1; grid-row: span 2; }
  .t2, .t3, .t4, .t5, .t6 { grid-column: span 1; grid-row: span 1; }
  .t6 { grid-column: 1 / -1; }
  .photo-strip { grid-template-columns: 1fr 1fr; }
  .photo-strip img:first-child { grid-column: 1 / -1; }
  .hero-controls { left: var(--gutter); right: var(--gutter); justify-content: space-between; }
  .hero .truss { display: none; }
  .hero-inner { padding-bottom: 6.5rem; }
  .form { grid-template-columns: 1fr; }
  .service-list span { display: none; }
}
@media (max-width: 560px) {
  .gallery { columns: 1; }
  .footer-grid { grid-template-columns: 1fr; padding-block: 3rem 2rem; }
  .hero-bars button { width: 26px; }
  .hero-arrows { display: none; }
  .info-list a { font-size: .98rem; overflow-wrap: anywhere; word-break: normal; }
  .hero::before { background: linear-gradient(0deg, rgb(0 18 58 / .92) 0%, rgb(0 18 58 / .72) 55%, rgb(0 18 58 / .35) 100%); }
  .wa-float span { display: none; }
  .map-frame { aspect-ratio: 4 / 5; }
  .lb-prev, .lb-next { top: auto; bottom: 1rem; translate: none; }
  .lb-prev { left: calc(50% - 64px); } .lb-next { right: calc(50% - 64px); }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
  .hero h1 span, .hero p.lead, .hero-actions { opacity: 1; transform: none; }
  .js .reveal { opacity: 1; transform: none; }
  .slide img { transform: none; }
}
@media (hover: none) {
  .btn:hover { box-shadow: none; }
  .tile span .icon { opacity: 1; transform: none; }
}