:root {
      /* --amarillo:     #F5A623;
      --amarillo-dk:  #D4891A;
      --gris-oscuro:  #1A1A1A;
      --gris-medio:   #3A3A3A;
      --gris-claro:   #F4F4F2;
      --blanco:       #FFFFFF;
      --acento:       #E8F0FE; */
        --amarillo:     #209bcf;
      --amarillo-dk:  #1a6ed4;
      --gris-oscuro:  #1A1A1A;
      --gris-medio:   #3A3A3A;
      --gris-claro:   #F4F4F2;
      --blanco:       #FFFFFF;
      --acento:       #E8F0FE;
    }

    body {
      font-family: 'Inter', sans-serif;
      color: var(--gris-oscuro);
      background: var(--blanco);
    }

    h1, h2, h3, h4, h5 {
      font-family: 'Inter', sans-serif;
      /* text-transform: uppercase; */
      letter-spacing: 0.03em;
    }

    /* ── HERO ── */
    .hero {
      position: relative;
      min-height: 100vh;
      display: flex;
      align-items: center;
      background: var(--gris-oscuro);
      overflow: hidden;
    }

    .hero::before {
      content: '';
      position: absolute;
      inset: 0;
      background: url('../img/hero_001_web.webp') center/cover no-repeat;
      opacity: 0.35;
    }

    .hero-content {
      position: relative;
      z-index: 2;
    }

    .hero h1 {
      /* font-size: clamp(2.6rem, 6vw, 5rem); */
      font-weight: 800;
      color: var(--blanco);
      line-height: 1.05;
    }

    .hero h1 span {
      color: var(--amarillo);
    }

    .hero p.lead {
      color: rgba(255,255,255,0.82);
      font-size: 1.25rem;
      font-weight: 300;
    }

    /* ── BOTONES ── */
    .btn-construc {
      background: var(--amarillo);
      color: var(--gris-oscuro);
      font-family: 'Barlow Condensed', sans-serif;
      font-weight: 700;
      font-size: 1.1rem;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      padding: 0.75rem 2rem;
      border: none;
      border-radius: 4px;
      transition: background 0.2s, transform 0.15s;
    }
    .btn-construc:hover {
      background: var(--amarillo-dk);
      color: var(--gris-oscuro);
      transform: translateY(-2px);
    }

    .btn-outline-construc {
      background: transparent;
      color: var(--amarillo);
      font-family: 'Barlow Condensed', sans-serif;
      font-weight: 700;
      font-size: 1.05rem;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      padding: 0.65rem 1.75rem;
      border: 2px solid var(--amarillo);
      border-radius: 4px;
      transition: all 0.2s;
    }
    .btn-outline-construc:hover {
      background: var(--amarillo);
      color: var(--gris-oscuro);
    }




    

    /* ── SECTION TITLE ── */
    .section-title {
      font-size: clamp(1.8rem, 4vw, 2.8rem);
      font-weight: 800;
      color: var(--gris-oscuro);
      margin-bottom: 0.5rem;
    }
    .section-title .accent {
      color: var(--amarillo);
    }
    .title-line {
      display: block;
      width: 48px;
      height: 4px;
      background: var(--amarillo);
      margin: 0.75rem 0 1.5rem 0;
    }
    .title-line.center { margin: 0.75rem auto 1.5rem; }

    /* ── SERVICIOS ── */
    .bg-gris { background: var(--gris-claro); }

    .card-servicio {
      background: var(--blanco);
      border-left: 4px solid var(--amarillo);
      border-radius: 6px;
      padding: 1.75rem 1.5rem;
      box-shadow: 0 2px 12px rgba(0,0,0,0.06);
      height: 100%;
      transition: transform 0.2s, box-shadow 0.2s;
    }
    .card-servicio:hover {
      transform: translateY(-4px);
      box-shadow: 0 8px 24px rgba(0,0,0,0.1);
    }
    .card-servicio i {
      font-size: 2.2rem;
      color: var(--amarillo);
      margin-bottom: 0.9rem;
      display: block;
    }
    .card-servicio h5 {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 0.5rem;
    }

    /* ── BENEFICIOS ── */
    .card-beneficio {
      background: var(--gris-oscuro);
      color: var(--blanco);
      border-radius: 6px;
      padding: 2rem 1.5rem;
      height: 100%;
      transition: transform 0.2s;
    }
    .card-beneficio:hover { transform: translateY(-3px); }
    .card-beneficio i {
      font-size: 2rem;
      color: var(--amarillo);
      margin-bottom: 0.9rem;
      display: block;
    }
    .card-beneficio h5 { color: var(--amarillo); font-weight: 700; }

    /* ── PROYECTOS / GALERÍA ── */
    .proyecto-card {
      position: relative;
      overflow: hidden;
      border-radius: 6px;
    }
    .proyecto-card img {
      width: 100%;
      height: 260px;
      object-fit: cover;
      transition: transform 0.4s;
    }
    .proyecto-card:hover img { transform: scale(1.05); }
    .proyecto-overlay {
      position: absolute;
      bottom: 0; left: 0; right: 0;
      background: linear-gradient(transparent, rgba(0,0,0,0.82));
      padding: 1.25rem;
      color: white;
    }

    /* ── TESTIMONIOS ── */
    .card-testimonio {
      background: var(--blanco);
      border-radius: 6px;
      padding: 2rem;
      box-shadow: 0 2px 16px rgba(0,0,0,0.07);
      border-top: 4px solid var(--amarillo);
    }
    .card-testimonio .stars { color: var(--amarillo); letter-spacing: 2px; }

    /* ── TARIFAS / PRESUPUESTO ── */
    .tarifa-item {
      display: flex;
      justify-content: space-between;
      padding: 0.6rem 0;
      border-bottom: 1px solid #eee;
      font-size: 0.95rem;
    }
    .card-tarifa {
      background: var(--blanco);
      border-radius: 8px;
      box-shadow: 0 2px 16px rgba(0,0,0,0.07);
    }
    .card-tarifa h3 {
      font-size: 1.4rem;
      font-weight: 700;
    }

    /* ── STRIP CTA ── */
    .strip-cta {
      background: var(--amarillo);
      padding: 3.5rem 0;
    }
    .strip-cta h2 {
      color: var(--gris-oscuro);
      font-size: clamp(1.8rem, 4vw, 3rem);
    }
    .strip-cta p { color: var(--gris-medio); }

    /* ── CONTACTO ── */
    .contacto-icon {
      color: var(--amarillo);
      font-size: 1.3rem;
      flex-shrink: 0;
    }
    .contacto-link a {
      color: var(--gris-oscuro);
      text-decoration: none;
    }
    .contacto-link a:hover { color: var(--amarillo); }
    #contactForm .form-control {
      border: 1px solid #ddd;
      border-radius: 4px;
      padding: 0.75rem 1rem;
      font-size: 0.95rem;
    }
    #contactForm .form-control:focus {
      border-color: var(--amarillo);
      box-shadow: 0 0 0 3px rgba(245,166,35,0.2);
    }

    /* ── FOOTER ── */
    footer {
      background: var(--gris-oscuro);
      color: rgba(255,255,255,0.7);
    }
    footer h4, footer h5 { color: var(--blanco); font-weight: 700; }
    footer a { color: rgba(255,255,255,0.6); text-decoration: none; }
    footer a:hover { color: var(--amarillo); }

    /* ── REVEAL ── */
    .reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.65s ease, transform 0.65s ease; }
    .reveal.in-view { opacity: 1; transform: none; }
    .delay-1 { transition-delay: 0.12s; }
    .delay-2 { transition-delay: 0.24s; }
    .delay-3 { transition-delay: 0.36s; }

    /* ── LOADING BTN ── */
    .btn-construc.loading { opacity: 0.7; pointer-events: none; }


    /* Animación de entrada para las imágenes del álbum */
.album-item {
  animation: fadeInUp 0.4s ease forwards;
  opacity: 0;
  transform: translateY(20px);
}

@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}












/* blog */
    /* Hero blog */
    .blog-hero {
      background: var(--gris-oscuro);
      padding: 6rem 0 4rem;
      margin-top: 60px;
      position: relative;
      overflow: hidden;
    }
    .blog-hero::after {
      content: '';
      position: absolute;
      bottom: 0; left: 0; right: 0;
      height: 4px;
      background: var(--amarillo);
    }

    /* Tarjetas blog */
    .blog-card {
      border-radius: 8px !important;
      overflow: hidden;
      transition: transform 0.25s, box-shadow 0.25s;
    }
    .blog-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 12px 32px rgba(0,0,0,0.12) !important;
    }
    .blog-card .card-img-top {
      height: 220px;
      object-fit: cover;
      border-radius: 0 !important;
    }
    .blog-card .card-body { padding: 1.5rem; }
    .blog-card .card-title a { color: var(--gris-oscuro); }
    .blog-card .card-title a:hover { color: var(--amarillo); }
    .blog-card .badge-cat {
      background: var(--amarillo);
      color: var(--gris-oscuro);
      font-family: 'Barlow Condensed', sans-serif;
      font-size: 0.8rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      padding: 0.3em 0.75em;
      border-radius: 3px;
    }
    .btn-leer {
      font-family: 'Barlow Condensed', sans-serif;
      font-weight: 700;
      font-size: 0.95rem;
      text-transform: uppercase;
      letter-spacing: 0.06em;
      color: var(--amarillo);
      text-decoration: none;
      border: none;
      background: none;
      padding: 0;
    }
    .btn-leer:hover { color: var(--amarillo-dk); }



    /* Empty state */
    .empty-blog {
      background: var(--gris-claro);
      border-radius: 8px;
      padding: 4rem 2rem;
    }
    .empty-blog i { color: var(--amarillo); font-size: 3rem; }