:root{
    --blue-deep:#072F47;
    --blue-brand:#005795;
    --blue-mid:#1D7DB8;
    --blue-pale:#E7F0F6;
    --steel:#8FA1AC;
    --steel-light:#EDF1F3;
    --paper:#F6F7F8;
    --ink:#101820;
    --ink-soft:#4B5A63;
    --copper:#C1652E;
    --copper-dark:#9C4E22;
    --plate:#DCE3E7;
    /* Avant Garde no está disponible como Google Font (es de pago / Letraset-Monotype).
       Uso Poppins como sustituto libre, misma familia geométrica sin serifas, varios pesos, sin cursiva. */
    --font-display:'Poppins', 'Century Gothic', sans-serif;
    --font-body:'Inter', 'Segoe UI', sans-serif;
    --font-mono:'IBM Plex Mono', 'Courier New', monospace;
  }
  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font-body);-webkit-font-smoothing:antialiased;line-height:1.55;}
  img{max-width:100%;display:block;}
  a{color:inherit;}
  .wrap{max-width:1180px;margin:0 auto;padding:0 28px;}
  .eyebrow{
    font-family:var(--font-mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase;
    color:var(--copper);display:flex;align-items:center;gap:8px;margin:0 0 12px;font-weight:500;
  }
  .eyebrow::before{content:"";width:16px;height:2px;background:var(--copper);display:inline-block;}
  h1,h2,h3{font-family:var(--font-display);text-transform:uppercase;margin:0;letter-spacing:.01em;line-height:1.12;font-style:normal;}
  h1{font-weight:800;} /* variante Bold */
  h2{font-weight:700;} /* variante Demi/Bold */
  h3{font-weight:500;} /* variante Medium */
  .btn{
    font-family:var(--font-display);font-size:13.5px;letter-spacing:.04em;text-transform:uppercase;
    padding:14px 26px;border-radius:2px;display:inline-flex;align-items:center;gap:10px;
    text-decoration:none;font-weight:500;border:1.5px solid transparent;cursor:pointer;
    transition:transform .15s ease, background .15s ease, border-color .15s ease;
  }
  .btn:hover{transform:translateY(-2px);}
  .btn-primary{background:var(--copper);color:#fff;}
  .btn-primary:hover{background:var(--copper-dark);}
  .btn-ghost{border-color:rgba(255,255,255,.55);color:#fff;}
  .btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.08);}
  .btn-outline-blue{border-color:var(--blue-brand);color:var(--blue-brand);}
  .btn-outline-blue:hover{background:var(--blue-brand);color:#fff;}

  /* ---------- placeholder de foto ---------- */
  .photo-ph{
    background:
      repeating-linear-gradient(45deg, #C7D0D5 0 2px, #D7DEE2 2px 14px);
    border:1px dashed var(--steel);
    display:flex;align-items:center;justify-content:center;text-align:center;
    color:var(--ink-soft);font-family:var(--font-mono);font-size:11.5px;letter-spacing:.06em;
    text-transform:uppercase;padding:14px;line-height:1.5;
  }
  .photo-ph span{background:rgba(255,255,255,.85);padding:6px 10px;border-radius:2px;}

  /* ---------- header ---------- */
  header{
    position:sticky;top:0;z-index:50;background:var(--blue-deep);
    border-bottom:3px solid var(--copper);
  }
  .header-inner{display:flex;align-items:center;justify-content:space-between;padding:14px 0;}
  .logo{display:flex;align-items:center;gap:10px;}
  .logo img{height:30px;}
  nav ul{list-style:none;display:flex;gap:30px;margin:0;padding:0;}
  nav a{
    color:#DDE7EE;text-decoration:none;font-family:var(--font-display);font-size:13px;
    letter-spacing:.03em;text-transform:uppercase;font-weight:500;
  }
  nav a:hover{color:#fff;}
  .header-right{display:flex;align-items:center;gap:22px;}
  .phone-tag{font-family:var(--font-display);font-weight:600;color:#fff;font-size:14px;letter-spacing:.01em;}
  .phone-tag small{display:block;font-family:var(--font-mono);color:var(--steel);font-size:10px;letter-spacing:.14em;text-transform:uppercase;font-weight:400;}

  /* ---------- botón menú móvil ---------- */
  .menu-toggle{
    display:none;background:none;border:none;cursor:pointer;padding:6px;width:34px;height:34px;
    flex-direction:column;justify-content:center;align-items:center;gap:6px;
  }
  .menu-toggle span{display:block;width:24px;height:2px;background:#fff;transition:transform .2s ease, opacity .2s ease;}
  .menu-toggle.open span:nth-child(1){transform:translateY(8px) rotate(45deg);}
  .menu-toggle.open span:nth-child(2){opacity:0;}
  .menu-toggle.open span:nth-child(3){transform:translateY(-8px) rotate(-45deg);}

  /* ---------- hero / slider ---------- */
  .hero{position:relative;min-height:88vh;display:flex;align-items:center;overflow:hidden;background:var(--blue-deep);}
  .hero-slides{position:absolute;inset:0;}
  .hero-slide{
    position:absolute;inset:0;opacity:0;transition:opacity 1s ease;
  }
  .hero-slide.active{opacity:1;}
  .hero-slide .photo-ph{width:100%;height:100%;position:absolute;inset:0;border:none;}
  .hero-slide::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(100deg, rgba(7,47,71,.94) 0%, rgba(7,47,71,.82) 32%, rgba(7,47,71,.45) 62%, rgba(7,47,71,.15) 100%);
  }
  .hero::before{
    content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
    background-image:
      repeating-linear-gradient(0deg, rgba(255,255,255,.05) 0 1px, transparent 1px 46px),
      repeating-linear-gradient(90deg, rgba(255,255,255,.05) 0 1px, transparent 1px 46px);
    opacity:.4;
  }
  .hero-content{position:relative;z-index:2;padding:80px 0;}
  .hero-content h1{
    color:#fff;font-size:clamp(36px,5.4vw,64px);max-width:820px;margin-bottom:20px;font-weight:600;
  }
  .hero-content h1 em{color:var(--copper);font-style:normal;}
  .hero-content p{color:#CBD9E1;max-width:560px;font-size:16.5px;margin-bottom:34px;}
  .hero-cta{display:flex;gap:16px;flex-wrap:wrap;}
  .hero-dots{position:absolute;bottom:36px;left:0;z-index:3;display:flex;gap:10px;padding-left:28px;}
  .hero-dots button{
    width:34px;height:4px;border:none;background:rgba(255,255,255,.35);cursor:pointer;padding:0;
    transition:background .2s ease;
  }
  .hero-dots button.active{background:var(--copper);}

  /* ---------- placas / stats ---------- */
  .plates{background:var(--blue-brand);padding:0;}
  .plates-inner{display:grid;grid-template-columns:repeat(4,1fr);}
  .plate{
    padding:30px 26px;border-right:1px solid rgba(255,255,255,.18);position:relative;
  }
  .plate:last-child{border-right:none;}
  .plate::before,.plate::after{
    content:"";position:absolute;width:6px;height:6px;border-radius:50%;
    background:rgba(255,255,255,.4);top:10px;
  }
  .plate::before{left:10px;}
  .plate::after{right:10px;}
  .plate .num{font-family:var(--font-display);font-size:34px;color:#fff;line-height:1;margin-bottom:6px;}
  .plate .lbl{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;color:#BFDCEE;}

  /* ---------- secciones generales ---------- */
  section{padding:96px 0;}
  .section-head{max-width:640px;margin-bottom:52px;}
  .section-head h2{font-size:clamp(26px,3.4vw,38px);color:var(--blue-deep);}
  .section-head p{color:var(--ink-soft);font-size:16px;margin-top:16px;}

  /* ---------- quienes somos ---------- */
  .about{background:#fff;}
  .about-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;}
  .about-text p{color:var(--ink-soft);font-size:15.5px;margin-bottom:18px;}
  .about-photo{aspect-ratio:4/3;}
  .about-values{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:28px;}
  .value{border-left:3px solid var(--copper);padding-left:14px;}
  .value strong{display:block;font-family:var(--font-display);font-size:15px;text-transform:uppercase;color:var(--blue-deep);margin-bottom:2px;}
  .value span{font-size:13.5px;color:var(--ink-soft);}

  /* ---------- productos ---------- */
  .products{background:var(--steel-light);}
  .product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
  .product-card{
    background:#fff;border:1px solid #D8E0E3;position:relative;overflow:hidden;
    transition:transform .18s ease, box-shadow .18s ease;
  }
  .product-card:hover{transform:translateY(-4px);box-shadow:0 14px 30px rgba(7,47,71,.12);}
  .product-photo{aspect-ratio:5/4;}
  .product-card .pc-body{padding:20px 20px 24px;}
  .product-card .pc-tag{font-family:var(--font-mono);font-size:10.5px;color:var(--copper);letter-spacing:.1em;text-transform:uppercase;margin-bottom:8px;display:block;}
  .product-card h3{font-size:18px;color:var(--blue-deep);margin-bottom:8px;}
  .product-card p{font-size:13.5px;color:var(--ink-soft);margin:0;}

  /* ---------- referencias / obras (placas) ---------- */
  .refs{background:var(--blue-deep);color:#fff;}
  .refs .section-head h2{color:#fff;}
  .refs .section-head p{color:#AFC4D2;}
  .ref-grid{columns:3 260px;column-gap:16px;}
  .ref-plate{
    position:relative;break-inside:avoid;margin-bottom:16px;display:inline-block;width:100%;
  }
  .ref-photo{border:none;color:#CFE0E9;width:100%;}
  .ref-photo img{width:100%;height:auto;display:block;} /* object-fit no aplica: sin recorte, proporción original */

  /* ---------- calidad ---------- */
  /* ---------- testimonios ---------- */
  .testimonios{background:var(--blue-pale);}
  .testi-track{position:relative;min-height:150px;max-width:720px;margin:0 auto;}
  .testi-card{
    position:absolute;inset:0;opacity:0;pointer-events:none;transition:opacity .5s ease;
    text-align:center;padding:10px 20px;
  }
  .testi-card.active{opacity:1;pointer-events:auto;}
  .testi-quote{font-size:19px;color:var(--blue-deep);line-height:1.5;margin:0 0 16px;font-weight:500;}
  .testi-name{font-family:var(--font-mono);font-size:12.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--copper);margin:0;}
  .testi-dots{display:flex;justify-content:center;gap:8px;margin-top:26px;}
  .testi-dots button{width:8px;height:8px;border-radius:50%;border:none;background:#B9CFDD;cursor:pointer;padding:0;}
  .testi-dots button.active{background:var(--blue-brand);}

  .quality{background:#fff;}
  .quality-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;}

  /* ---------- calculadora CTA ---------- */
  .calc-banner{
    background:linear-gradient(120deg,var(--blue-brand),var(--blue-mid));
    padding:60px 0;
  }
  .calc-banner .wrap{display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap;}
  .calc-banner h2{color:#fff;font-size:clamp(22px,2.6vw,30px);max-width:520px;}
  .calc-banner p{color:#D7EAF5;margin-top:10px;font-size:14.5px;}

  /* ---------- contacto ---------- */
  .contact{background:var(--steel-light);}
  .contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:60px;}
  .contact-info h2{color:var(--blue-deep);font-size:28px;margin-bottom:20px;}
  .info-row{display:flex;gap:14px;margin-bottom:20px;font-size:14.5px;color:var(--ink-soft);}
  .info-row b{display:block;color:var(--blue-deep);font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;margin-bottom:3px;}
  .map-photo{aspect-ratio:4/3;overflow:hidden;border:1px solid #D8E0E3;}
  .contact-form{background:#fff;border:1px solid #D8E0E3;padding:32px;}
  .contact-form label{display:block;font-family:var(--font-mono);font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--ink-soft);margin-bottom:6px;}
  .contact-form input,.contact-form select,.contact-form textarea{
    width:100%;padding:11px 12px;margin-bottom:18px;border:1px solid #CBD5D9;font-family:var(--font-body);font-size:14px;background:var(--paper);
  }
  .contact-form textarea{resize:vertical;min-height:90px;}

  footer{background:var(--blue-deep);color:#9FB6C4;padding:50px 0 26px;font-family:var(--font-body);}
  .footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;margin-bottom:36px;}
  .footer-grid img{height:24px;margin-bottom:14px;}
  .footer-grid p{font-size:13.5px;line-height:1.7;max-width:340px;}
  .footer-grid h4{font-family:var(--font-display);font-weight:600;color:#fff;font-size:13px;letter-spacing:.02em;text-transform:uppercase;margin-bottom:14px;}
  .footer-grid ul{list-style:none;margin:0;padding:0;}
  .footer-grid li{margin-bottom:10px;font-size:13.5px;font-family:var(--font-display);font-weight:400;}
  .footer-grid a{text-decoration:none;color:#9FB6C4;}
  .footer-grid a:hover{color:#fff;}
  .footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:20px;display:flex;justify-content:space-between;font-size:12.5px;font-family:var(--font-display);flex-wrap:wrap;gap:10px;}

  @media(max-width:980px){
    .menu-toggle{display:flex;}
    nav{
      display:block;position:absolute;top:100%;left:0;right:0;background:var(--blue-deep);
      border-bottom:3px solid var(--copper);max-height:0;overflow:hidden;transition:max-height .25s ease;
    }
    nav.open{max-height:420px;}
    nav ul{flex-direction:column;gap:0;padding:8px 0;}
    nav ul li{border-top:1px solid rgba(255,255,255,.08);}
    nav ul li:first-child{border-top:none;}
    nav a{display:block;padding:16px 28px;}
    .header-right{gap:14px;}
    .phone-tag{display:none;}
    .plates-inner{grid-template-columns:repeat(2,1fr);}
    .plate:nth-child(2){border-right:none;}
    .about-grid,.quality-grid,.contact-grid{grid-template-columns:1fr;}
    .product-grid{grid-template-columns:repeat(2,1fr);}
    .ref-grid{columns:2 180px;}
    .footer-grid{grid-template-columns:1fr;}
  }

  /* ---------- cabecera de página interior (Empresa, Trabajos, Certificados...) ---------- */
  .page-hero{
    position:relative;height:340px;display:flex;align-items:center;overflow:hidden;background:var(--blue-deep);
  }
  .page-hero .photo-ph{position:absolute;inset:0;border:none;}
  .page-hero::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(180deg, rgba(7,47,71,.45) 0%, rgba(7,47,71,.82) 100%);
  }
  .page-hero-content{position:relative;z-index:2;width:100%;text-align:center;}
  .page-hero-content .eyebrow{justify-content:center;color:#BFDCEE;}
  .page-hero-content .eyebrow::before{background:#BFDCEE;}
  .page-hero-content h1{color:#fff;font-size:clamp(30px,4.5vw,48px);}
  .breadcrumb{position:relative;z-index:2;text-align:center;margin-top:10px;}
  .breadcrumb a, .breadcrumb span{font-family:var(--font-mono);font-size:12px;color:#BFDCEE;text-decoration:none;letter-spacing:.05em;}
  .breadcrumb a:hover{color:#fff;}

  /* ---------- botón ver más ---------- */
  .ver-mas-wrap{text-align:center;margin-top:36px;}
  .btn-ver-mas{
    font-family:var(--font-display);font-weight:500;font-size:13.5px;text-transform:uppercase;letter-spacing:.04em;
    padding:13px 30px;background:#fff;border:1.5px solid var(--blue-brand);color:var(--blue-brand);cursor:pointer;
  }
  .btn-ver-mas:hover{background:var(--blue-brand);color:#fff;}
  .btn-ver-mas:disabled{opacity:.5;cursor:default;}

  /* ---------- WhatsApp flotante ---------- */
  .whatsapp-float{
    position:fixed;bottom:24px;right:24px;z-index:60;
    width:56px;height:56px;border-radius:50%;background:#25D366;
    display:flex;align-items:center;justify-content:center;box-shadow:0 8px 20px rgba(0,0,0,.25);
    text-decoration:none;transition:transform .15s ease;
  }
  .whatsapp-float:hover{transform:scale(1.07);}
  .whatsapp-float svg{width:28px;height:28px;fill:#fff;}

  /* ---------- lightbox de fotos ---------- */
  .lightbox{
    position:fixed;inset:0;z-index:110;background:rgba(7,16,24,.94);
    display:none;align-items:center;justify-content:center;padding:20px;
  }
  .lightbox.open{display:flex;}
  .lightbox img{max-width:92vw;max-height:88vh;display:block;box-shadow:0 20px 60px rgba(0,0,0,.5);}
  .lightbox-close{
    position:absolute;top:18px;right:22px;background:none;border:none;color:#fff;font-size:34px;
    line-height:1;cursor:pointer;padding:4px 10px;opacity:.85;
  }
  .lightbox-close:hover{opacity:1;}
  .lightbox-nav{
    position:absolute;top:50%;transform:translateY(-50%);background:rgba(255,255,255,.12);border:none;color:#fff;
    font-size:28px;width:52px;height:52px;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;
  }
  .lightbox-nav:hover{background:rgba(255,255,255,.24);}
  .lightbox-nav.prev{left:16px;}
  .lightbox-nav.next{right:16px;}
  @media(max-width:640px){ .lightbox-nav{width:42px;height:42px;font-size:22px;} }
  .modal-overlay{
    position:fixed;inset:0;background:rgba(7,47,71,.72);z-index:100;
    display:none;align-items:center;justify-content:center;padding:20px;
  }
  .modal-overlay.open{display:flex;}
  .modal-box{background:#fff;max-width:340px;width:100%;padding:34px 30px;border-top:4px solid var(--copper);position:relative;}
  .modal-box h3{font-size:18px;color:var(--blue-deep);margin-bottom:6px;}
  .modal-box p{font-size:13px;color:var(--ink-soft);margin:0 0 20px;}
  .modal-box input{width:100%;padding:11px 12px;font-size:15px;border:1px solid #CBD5D9;margin-bottom:14px;box-sizing:border-box;font-family:var(--font-body);}
  .modal-box button{width:100%;padding:12px;background:var(--blue-brand);color:#fff;border:none;font-size:14px;cursor:pointer;text-transform:uppercase;letter-spacing:.04em;font-family:var(--font-display);font-weight:500;}
  .modal-box button:hover{background:#00436F;}
  .modal-close{position:absolute;top:12px;right:14px;background:none;border:none;font-size:20px;color:var(--ink-soft);cursor:pointer;width:auto;padding:0;}
  .modal-error{background:#FBE9E7;border:1px solid #E39187;color:#8A2E22;padding:9px 12px;font-size:13px;margin-bottom:14px;display:none;}
  .modal-error.show{display:block;}

  /* ---------- franjas de fotos (Empresa, Productos, Calidad...) ---------- */
  /* Cuadrícula real de 2 columnas (no masonry): las fotos no se apilan una
     encima de otra, van en filas de 2 en 2, cada una con su proporción real. */
  .franja-fotos{display:grid;grid-template-columns:repeat(2, 1fr);gap:14px;max-width:760px;margin:0 auto 70px;}
  .franja-fotos .f-item{width:100%;}
  .franja-fotos .f-item img{width:100%;height:auto;display:block;}
  .franja-fotos .photo-ph{aspect-ratio:4/3;font-size:10.5px;}
  @media(max-width:520px){ .franja-fotos{grid-template-columns:1fr;} }

  /* ---------- banner de cookies ---------- */
  .cookie-banner{
    position:fixed;left:0;right:0;bottom:0;z-index:90;background:var(--blue-brand);color:#fff;
    padding:18px 24px;display:none;align-items:center;justify-content:center;gap:24px;flex-wrap:wrap;
    font-size:13.5px;box-shadow:0 -6px 20px rgba(0,0,0,.22);border-top:3px solid var(--copper);
  }
  .cookie-banner.show{display:flex;}
  .cookie-banner span{color:#fff;}
  .cookie-banner a{color:#fff;text-decoration:underline;font-weight:600;}
  .cookie-banner .cookie-botones{display:flex;gap:10px;flex-shrink:0;flex-wrap:wrap;}
  .cookie-banner button{
    font-family:var(--font-display);font-weight:500;font-size:12.5px;text-transform:uppercase;letter-spacing:.03em;
    padding:10px 20px;border:none;cursor:pointer;border-radius:2px;
  }
  .cookie-banner .btn-aceptar{background:#fff;color:var(--blue-brand);}
  .cookie-banner .btn-aceptar:hover{background:var(--copper);color:#fff;}
  .cookie-banner .btn-rechazar,.cookie-banner .btn-configurar{background:transparent;border:1.5px solid rgba(255,255,255,.6);color:#fff;}
  .cookie-banner .btn-rechazar:hover,.cookie-banner .btn-configurar:hover{border-color:#fff;background:rgba(255,255,255,.1);}

  /* ---------- modal configuración de cookies ---------- */
  .cookie-modal-box{max-width:460px;}
  .cookie-fila{
    display:flex;justify-content:space-between;align-items:flex-start;gap:16px;
    padding:16px 0;border-top:1px solid #E1E7EA;
  }
  .cookie-fila:first-of-type{border-top:none;}
  .cookie-fila h4{font-size:14px;color:var(--blue-deep);margin:0 0 4px;}
  .cookie-fila p{font-size:12.5px;color:var(--ink-soft);margin:0;line-height:1.5;}
  .switch{position:relative;display:inline-block;width:42px;height:24px;flex-shrink:0;}
  .switch input{opacity:0;width:0;height:0;}
  .switch .slider{
    position:absolute;cursor:pointer;inset:0;background:#CBD5D9;transition:.2s;border-radius:24px;
  }
  .switch .slider::before{
    content:"";position:absolute;height:18px;width:18px;left:3px;bottom:3px;background:#fff;transition:.2s;border-radius:50%;
  }
  .switch input:checked + .slider{background:var(--blue-brand);}
  .switch input:checked + .slider::before{transform:translateX(18px);}
  .switch input:disabled + .slider{background:#9FB6C4;cursor:not-allowed;opacity:.7;}
  .cookie-modal-botones{display:flex;gap:10px;margin-top:22px;}
  .cookie-modal-botones button{flex:1;padding:12px;font-family:var(--font-display);font-weight:500;font-size:13px;text-transform:uppercase;letter-spacing:.03em;border:none;cursor:pointer;}
  .cookie-modal-botones .btn-cancelar{background:#EDF1F3;color:var(--ink-soft);}
  .cookie-modal-botones .btn-guardar{background:var(--blue-brand);color:#fff;}
  .cookie-modal-botones .btn-guardar:hover{background:#00436F;}