/* =========================================================
   CRECE CASA S.A. — Hoja de estilos
   Versión V1 — Corporativo clásico:
   barra superior roja, hero con foto y overlay oscuro,
   tarjetas con borde naranja, clientes en carbón, banda CTA naranja.
   Mobile-first. Paleta derivada del logo.
   ========================================================= */

/* ---------- Tokens ---------- */
:root{
  --naranja:        #FF8400;
  --naranja-hover:  #E56F00;
  --naranja-texto:  #B85400;  /* naranja accesible sobre fondo claro (AA) */
  --naranja-suave:  #FFF1E0;
  --rojo:           #9E1B1B;
  --carbon:         #1F2933;
  --carbon-900:     #101418;
  --verde:          #1F7A5C;
  --verde-oscuro:   #17614A;
  --blanco:         #FFFFFF;
  --hueso:          #F6F3EF;
  --gris-100:       #F1EEE9;
  --gris-200:       #E3DFD8;
  --gris-500:       #6B7280;
  --texto:          #23282E;

  --radio:      4px;
  --sombra:     0 1px 2px rgba(16,20,24,.05), 0 6px 18px rgba(16,20,24,.06);
  --sombra-alt: 0 2px 4px rgba(16,20,24,.08), 0 14px 34px rgba(16,20,24,.12);
  --borde:      1px solid var(--gris-200);

  --header-h:   72px;
  --max:        1180px;
  --sans:       'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --body:       'Open Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
}

/* ---------- Reset ---------- */
*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; scroll-padding-top:calc(var(--header-h) + 10px); -webkit-text-size-adjust:100%; }
body{
  margin:0;
  font-family:var(--body);
  font-size:1rem;
  line-height:1.65;
  color:var(--texto);
  background:var(--blanco);
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; height:auto; display:block; }
a{ color:inherit; }
ul,ol{ margin:0; padding:0; list-style:none; }
h1,h2,h3{ font-family:var(--sans); color:var(--carbon); line-height:1.16; margin:0 0 .6em; letter-spacing:-.02em; }
h1{ font-size:clamp(1.95rem, 4.6vw, 3.1rem); font-weight:800; }
h2{ font-size:clamp(1.55rem, 3.2vw, 2.25rem); font-weight:800; }
h3{ font-size:1.05rem; font-weight:700; letter-spacing:-.01em; }
p{ margin:0 0 1rem; }
p:last-child{ margin-bottom:0; }
em{ font-style:italic; }

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

.skip-link{
  position:absolute; left:-9999px; top:0; z-index:200;
  background:var(--carbon); color:#fff; padding:.7rem 1.1rem; font-weight:600;
}
.skip-link:focus{ left:0; }

.container{ width:100%; max-width:var(--max); margin-inline:auto; padding-inline:20px; }

/* Iconos de línea */
.ico, .card__ico svg, .btn svg{
  fill:none; stroke:currentColor; stroke-width:1.7;
  stroke-linecap:round; stroke-linejoin:round;
}
.ico{ width:16px; height:16px; flex:0 0 auto; }

/* ---------- Barra superior (roja) ---------- */
.topbar{ background:var(--rojo); color:#fff; font-size:.78rem; }
.topbar__inner{
  display:flex; flex-wrap:wrap; gap:.3rem 1.6rem;
  align-items:center; justify-content:center; padding-block:.5rem;
}
.topbar__right{ display:flex; flex-wrap:wrap; gap:.3rem 1.6rem; justify-content:center; }
.topbar__item{ display:flex; align-items:center; gap:.4rem; margin:0; }
.topbar a{ text-decoration:none; }
.topbar a:hover{ text-decoration:underline; }
.topbar__addr{ display:none; }

/* ---------- Header ---------- */
.header{
  position:sticky; top:0; z-index:100;
  background:#fff;
  border-bottom:3px solid var(--naranja);
  transition:box-shadow .25s ease;
}
.header.is-stuck{ box-shadow:0 2px 14px rgba(16,20,24,.12); }
.header__inner{
  display:flex; align-items:center; justify-content:space-between; gap:1rem;
  min-height:var(--header-h);
}
.brand img{ height:44px; width:auto; }

.nav{ display:flex; align-items:center; gap:1.5rem; }
.nav__list{ display:flex; align-items:center; gap:1.4rem; }
.nav__list a{
  font-family:var(--sans); font-size:.9rem; font-weight:600;
  text-decoration:none; color:var(--carbon); padding-block:.3rem;
  border-bottom:2px solid transparent; transition:color .18s, border-color .18s;
}
.nav__list a:hover{ color:var(--naranja-texto); }
.nav__list a.is-active{ color:var(--naranja-texto); border-bottom-color:var(--naranja); }

.hamburger{
  display:none; width:44px; height:44px; padding:10px;
  background:none; border:var(--borde); border-radius:var(--radio); cursor:pointer;
}
.hamburger span{
  display:block; height:2px; background:var(--carbon); border-radius:2px;
  transition:transform .25s ease, opacity .2s ease;
}
.hamburger span + span{ margin-top:5px; }
.hamburger[aria-expanded="true"] span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
.hamburger[aria-expanded="true"] span:nth-child(2){ opacity:0; }
.hamburger[aria-expanded="true"] span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }

/* ---------- Botones ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:.5rem;
  font-family:var(--sans); font-size:.9rem; font-weight:700;
  padding:.7rem 1.3rem; border:2px solid transparent; border-radius:var(--radio);
  text-decoration:none; cursor:pointer; white-space:nowrap;
  transition:background-color .18s, border-color .18s, color .18s, transform .18s;
}
.btn svg{ width:18px; height:18px; }
.btn--lg{ padding:.88rem 1.7rem; font-size:.98rem; }
.btn--block{ display:flex; width:100%; }
.btn--primary{ background:var(--naranja); color:var(--carbon-900); border-color:var(--naranja); }
.btn--primary:hover{ background:var(--naranja-hover); border-color:var(--naranja-hover); }
.btn--outline{ background:rgba(255,255,255,.06); color:#fff; border-color:rgba(255,255,255,.75); }
.btn--outline:hover{ background:#fff; color:var(--carbon); border-color:#fff; }
.btn--white{ background:#fff; color:var(--naranja-texto); border-color:#fff; }
.btn--white:hover{ background:var(--carbon-900); color:#fff; border-color:var(--carbon-900); }
.btn--wa{ background:var(--verde); color:#fff; border-color:var(--verde); margin-top:1.6rem; }
.btn--wa:hover{ background:var(--verde-oscuro); border-color:var(--verde-oscuro); }

/* ---------- Utilidades de sección ---------- */
.section{ padding-block:clamp(3.25rem, 7vw, 5.25rem); }
.section--alt{ background:var(--hueso); }
.section__head{ max-width:640px; margin-bottom:2.5rem; }
.section__head--center{ margin-inline:auto; text-align:center; }
.section__lead{ color:var(--gris-500); font-size:1rem; }

.eyebrow{
  font-family:var(--sans); font-size:.72rem; font-weight:800;
  letter-spacing:.15em; text-transform:uppercase;
  color:var(--naranja-texto); margin-bottom:.5rem;
}
.eyebrow--green{ color:var(--verde-oscuro); }
.eyebrow--light{ color:var(--naranja); }
.t-orange{ color:var(--naranja); }

/* ---------- Hero ---------- */
.hero{
  position:relative; isolation:isolate;
  display:flex; align-items:center;
  min-height:clamp(520px, 76vh, 660px);
  padding-block:clamp(3rem, 7vw, 4.5rem);
  background:var(--carbon-900);
  overflow:hidden;
}
.hero__bg{
  position:absolute; inset:0; z-index:-2;
  width:100%; height:100%; object-fit:cover; object-position:center 42%;
  filter:blur(1px);   /* las fotos de obra son de baja resolución: suaviza el escalado */
  transform:scale(1.03);
}
.hero__overlay{
  position:absolute; inset:0; z-index:-1;
  background:linear-gradient(100deg, rgba(16,20,24,.90) 0%, rgba(16,20,24,.80) 45%, rgba(16,20,24,.62) 100%);
}
.hero__inner{ color:#fff; }
.hero__eyebrow{
  font-family:var(--sans); font-size:.74rem; font-weight:800;
  letter-spacing:.18em; text-transform:uppercase;
  color:var(--naranja); margin-bottom:.8rem;
}
.hero h1{ color:#fff; max-width:17ch; margin-bottom:.7em; }
.hero__sub{
  font-size:1.02rem; color:#D3D8DE; max-width:56ch; margin-bottom:2rem;
}
.hero__actions{ display:flex; flex-wrap:wrap; gap:.8rem; }

.hero__stats{
  display:grid; grid-template-columns:repeat(2,1fr); gap:1.4rem 1.5rem;
  margin:3rem 0 0; padding-top:2rem;
  border-top:1px solid rgba(255,255,255,.18);
}
.hero__stats .stat{ display:flex; flex-direction:column-reverse; }
.hero__stats dd{
  margin:0;
  font-family:var(--sans); font-size:clamp(1.3rem,2.6vw,1.7rem);
  font-weight:800; color:var(--naranja); letter-spacing:-.02em; line-height:1.1;
}
.hero__stats dt{ font-size:.8rem; color:#BEC5CD; line-height:1.4; margin-top:.25rem; }

/* ---------- Servicios ---------- */
.cards{ display:grid; gap:1.25rem; }
.card{
  background:#fff; border:var(--borde); border-top:3px solid var(--naranja);
  border-radius:var(--radio); padding:1.6rem 1.5rem;
  transition:transform .2s ease, box-shadow .2s ease;
}
.card:hover{ transform:translateY(-3px); box-shadow:var(--sombra-alt); }
.card__ico{
  display:inline-flex; align-items:center; justify-content:center;
  width:46px; height:46px; border-radius:var(--radio);
  background:var(--naranja-suave); color:var(--naranja-texto); margin-bottom:1rem;
}
.card__ico svg{ width:24px; height:24px; }
.card p{ font-size:.93rem; color:#4A535D; }

/* Tarjeta destacada: energía renovable (acento verde, misma estructura) */
.card--feature{ border-top-color:var(--verde); }
.card--feature .card__ico{ background:#E7F2EE; color:var(--verde-oscuro); }

/* ---------- Nosotros ---------- */
.about__grid{ display:grid; gap:2.4rem; align-items:center; }
.about__figure{ margin:0; border-radius:var(--radio); overflow:hidden; box-shadow:var(--sombra); }
.about__figure img{ width:100%; aspect-ratio:4/3; object-fit:cover; }

.checks{ display:grid; gap:.7rem; margin-top:1.6rem; }
.checks li{ position:relative; padding-left:1.85rem; font-size:.94rem; }
.checks li::before{
  content:""; position:absolute; left:0; top:.34em;
  width:1.05rem; height:1.05rem; border-radius:2px;
  background:var(--naranja) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23101418' stroke-width='3.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m5 12.5 4.5 4.5L19 7'/%3E%3C/svg%3E") center/72% no-repeat;
}
.checks--green li::before{ background-color:var(--verde); background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23ffffff' stroke-width='3.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m5 12.5 4.5 4.5L19 7'/%3E%3C/svg%3E"); }

.mv__grid{ display:grid; gap:1.25rem; margin-top:2.6rem; }
.mv{
  background:#fff; border:var(--borde); border-left:4px solid var(--naranja);
  border-radius:var(--radio); padding:1.4rem 1.5rem;
}
.mv--green{ border-left-color:var(--verde); }
.mv h3{ margin-bottom:.4rem; }
.mv p{ font-size:.93rem; color:#4A535D; }

/* ---------- Proceso ---------- */
.steps{ display:grid; gap:1.8rem; }
.step__n{
  display:inline-flex; align-items:center; justify-content:center;
  width:38px; height:38px; border-radius:50%;
  background:var(--naranja); color:var(--carbon-900);
  font-family:var(--sans); font-weight:800; font-size:1.05rem;
  margin-bottom:.85rem;
}
.step h3{ margin-bottom:.3rem; }
.step p{ font-size:.91rem; color:#4A535D; }

/* ---------- Galería de proyectos (caption superpuesto) ---------- */
.gallery{ display:grid; gap:1.15rem; }
.shot{
  position:relative; margin:0; overflow:hidden;
  border-radius:var(--radio); background:var(--carbon-900);
  box-shadow:var(--sombra);
}
.shot img{
  width:100%; aspect-ratio:4/3; object-fit:cover;
  transition:transform .4s ease, opacity .3s ease;
}
.shot:hover img{ transform:scale(1.05); opacity:.85; }
.shot figcaption{
  position:absolute; inset:auto 0 0 0;
  padding:2.6rem 1.1rem .95rem;
  background:linear-gradient(to top, rgba(16,20,24,.94) 32%, rgba(16,20,24,.72) 62%, rgba(16,20,24,0) 100%);
  color:#D7DCE2; font-size:.79rem; line-height:1.45;
}
.shot figcaption strong{
  display:block; font-family:var(--sans); font-size:.92rem; font-weight:700;
  color:#fff; margin-bottom:.2rem; line-height:1.3;
}

/* ---------- Sostenibilidad ---------- */
.sust__grid{ display:grid; gap:2.2rem; align-items:center; }
.sust__grid p{ font-size:.97rem; color:#4A535D; }

.quote{
  margin:0; padding:clamp(1.6rem,3vw,2.2rem);
  background:var(--carbon); color:#fff; border-radius:var(--radio);
  border-left:4px solid var(--naranja);
}
.quote blockquote{
  margin:0 0 1.1rem; font-family:var(--sans);
  font-size:clamp(1.1rem,2.2vw,1.4rem); font-weight:700;
  line-height:1.4; letter-spacing:-.01em;
}
.quote figcaption{ font-size:.85rem; color:#AEB6BF; }
.quote figcaption strong{ display:block; font-family:var(--sans); color:var(--naranja); }
.quote figcaption span{ display:block; }

/* ---------- Clientes (fondo carbón) ---------- */
.clients-sec{
  background:var(--carbon); color:#D7DCE2;
  padding-block:clamp(3.25rem,7vw,5.25rem);
}
.clients-sec h2{ color:#fff; }
.clients{ display:grid; grid-template-columns:repeat(2,1fr); gap:.9rem; }
.clients li{
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.14); border-radius:var(--radio);
  padding:1.15rem 1rem; text-align:center; min-height:76px;
  display:flex; align-items:center; justify-content:center;
  font-family:var(--sans); font-size:.86rem; font-weight:600; color:#fff;
  line-height:1.35;
  transition:border-color .2s ease, background-color .2s ease;
}
.clients li:hover{ border-color:var(--naranja); background:rgba(255,132,0,.10); }

/* ---------- Banda CTA naranja ---------- */
.cta-band{ background:var(--naranja); }
.cta-band__inner{
  display:flex; flex-wrap:wrap; align-items:center; justify-content:center;
  gap:1.4rem 2rem; text-align:center;
  padding-block:clamp(2.4rem,5vw,3.2rem);
}
.cta-band h2{
  margin:0; color:var(--carbon-900);
  font-size:clamp(1.35rem,2.8vw,1.9rem);
}

/* ---------- Contacto ---------- */
.contact__grid{ display:grid; gap:2.2rem; align-items:start; }
.contact__list{ display:grid; gap:1.3rem; }
.contact__list li{ display:flex; gap:.9rem; align-items:flex-start; font-size:.93rem; }
.contact__list .ico{ width:20px; height:20px; margin-top:.2rem; color:var(--naranja-texto); }
.contact__list strong{
  display:block; font-family:var(--sans); font-size:.78rem; font-weight:800;
  letter-spacing:.1em; text-transform:uppercase; color:var(--gris-500);
  margin-bottom:.15rem;
}
.contact__list a{ color:var(--carbon); text-decoration:none; border-bottom:1px solid var(--gris-200); }
.contact__list a:hover{ border-bottom-color:var(--naranja); }

.formcard{
  background:#fff; border:var(--borde); border-top:3px solid var(--naranja);
  border-radius:var(--radio); padding:clamp(1.4rem,3vw,2rem);
  box-shadow:var(--sombra);
}
.field{ margin-bottom:1rem; }
.field label{
  display:block; font-family:var(--sans); font-size:.8rem; font-weight:700;
  color:var(--carbon); margin-bottom:.35rem;
}
.field input, .field textarea{
  width:100%; font-family:var(--body); font-size:.94rem; color:var(--texto);
  padding:.7rem .85rem; background:var(--gris-100);
  border:1px solid var(--gris-200); border-radius:var(--radio);
  transition:border-color .18s, background-color .18s;
}
.field textarea{ resize:vertical; min-height:110px; }
.field input::placeholder, .field textarea::placeholder{ color:#9AA1A9; }
.field input:focus, .field textarea:focus{ background:#fff; border-color:var(--naranja); }
.field input[aria-invalid="true"], .field textarea[aria-invalid="true"]{ border-color:var(--rojo); background:#FDF4F4; }
.formcard__note{ margin-top:.9rem; font-size:.79rem; color:var(--gris-500); text-align:center; }
.formcard__note.is-error{ color:var(--rojo); font-weight:600; }
.formcard__note.is-ok{ color:var(--verde-oscuro); font-weight:600; }

/* Trampa antispam: oculta a la vista y a los lectores de pantalla,
   pero visible para los bots que rellenan todos los campos. */
.hp{
  position:absolute; width:1px; height:1px; overflow:hidden;
  clip:rect(0 0 0 0); clip-path:inset(50%); white-space:nowrap;
}

.btn:disabled{ opacity:.65; cursor:not-allowed; transform:none; }

/* ---------- Footer ---------- */
.footer{ background:var(--carbon-900); color:#9BA4AE; padding-top:clamp(2.5rem,5vw,3.4rem); font-size:.86rem; }
.footer__grid{ display:grid; gap:2rem; padding-bottom:2.3rem; }
.footer h3{ color:#fff; font-size:.8rem; letter-spacing:.12em; text-transform:uppercase; margin-bottom:1rem; }
.footer__name{ font-size:1.05rem !important; letter-spacing:-.01em !important; text-transform:none !important; }
.footer ul{ display:grid; gap:.5rem; }
.footer a{ text-decoration:none; }
.footer a:hover{ color:#fff; text-decoration:underline; }
.footer__ids{ margin-top:.9rem; font-size:.79rem; color:#79828C; }
.footer__legal{
  display:flex; flex-wrap:wrap; gap:.4rem 1.5rem; justify-content:space-between;
  border-top:1px solid rgba(255,255,255,.09); padding-block:1.25rem;
  font-size:.79rem; color:#79828C;
}
.footer__legal p{ margin:0; }
.footer__cert{ color:var(--naranja); font-weight:600; }

/* ---------- WhatsApp flotante ---------- */
.wa-float{
  position:fixed; right:18px; bottom:18px; z-index:90;
  width:54px; height:54px; border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  background:#25D366; color:#fff; box-shadow:0 6px 20px rgba(16,20,24,.28);
  transition:transform .2s ease;
}
.wa-float svg{ width:30px; height:30px; fill:currentColor; }
.wa-float:hover{ transform:scale(1.07); }

/* ---------- Animación de entrada ---------- */
.reveal{ opacity:0; transform:translateY(18px); transition:opacity .6s ease, transform .6s ease; }
.reveal.is-visible{ opacity:1; transform:none; }

/* =========================================================
   Breakpoints
   ========================================================= */
@media (min-width:600px){
  .cards{ grid-template-columns:repeat(2,1fr); }
  .gallery{ grid-template-columns:repeat(2,1fr); }
  .steps{ grid-template-columns:repeat(2,1fr); }
  .mv__grid{ grid-template-columns:repeat(2,1fr); }
  .footer__grid{ grid-template-columns:repeat(2,1fr); }
}

@media (min-width:768px){
  .hero__stats{ grid-template-columns:repeat(4,1fr); }
  .clients{ grid-template-columns:repeat(4,1fr); }
  .topbar__addr{ display:flex; }
  .topbar__inner{ justify-content:space-between; }
}

@media (min-width:992px){
  .cards{ grid-template-columns:repeat(3,1fr); }
  .gallery{ grid-template-columns:repeat(3,1fr); }
  .steps{ grid-template-columns:repeat(4,1fr); }
  .about__grid{ grid-template-columns:1.1fr .9fr; gap:3.4rem; }
  .sust__grid{ grid-template-columns:1.05fr .95fr; gap:3.2rem; }
  .contact__grid{ grid-template-columns:.9fr 1.1fr; gap:3.2rem; }
  .footer__grid{ grid-template-columns:1.4fr 1fr 1fr; gap:3rem; }
  .cta-band__inner{ justify-content:space-between; text-align:left; }
}

/* --- Menú móvil (< 992px) --- */
@media (max-width:991.98px){
  .hamburger{ display:block; }
  .nav{
    position:absolute; top:100%; left:0; right:0;
    flex-direction:column; align-items:stretch; gap:0;
    background:#fff; border-bottom:var(--borde);
    box-shadow:0 14px 30px rgba(16,20,24,.14);
    padding:.5rem 20px 1.4rem;
    max-height:calc(100dvh - var(--header-h)); overflow-y:auto;
    transform:translateY(-8px); opacity:0; visibility:hidden;
    transition:opacity .22s ease, transform .22s ease, visibility .22s;
  }
  .nav.is-open{ transform:none; opacity:1; visibility:visible; }
  .nav__list{ flex-direction:column; align-items:stretch; gap:0; }
  .nav__list a{
    display:block; padding:.85rem .2rem; font-size:1rem;
    border-bottom:1px solid var(--gris-100);
  }
  .nav__list a.is-active{ border-bottom-color:var(--gris-100); }
  .nav__cta{ margin-top:1.1rem; justify-content:center; }
  body.nav-open{ overflow:hidden; }
}

/* --- Accesibilidad: movimiento reducido --- */
@media (prefers-reduced-motion:reduce){
  html{ scroll-behavior:auto; }
  *,*::before,*::after{
    animation-duration:.01ms !important; animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
  }
  .reveal{ opacity:1; transform:none; }
}

/* --- Impresión --- */
@media print{
  .topbar,.header,.wa-float,.hero__actions,.formcard,.btn,.cta-band{ display:none !important; }
  body{ background:#fff; color:#000; }
  .reveal{ opacity:1; transform:none; }
  .hero__bg,.hero__overlay{ display:none; }
  .hero{ min-height:auto; background:#fff; }
  .hero h1,.hero__inner{ color:#000; }
}