/* ============================================================
   ADM BCN REFORMAS - Estilos compartidos
   Extraído de index.html. Las 5 páginas enlazan a este archivo.
   ============================================================ */

:root{
    --bg:#F5EFE6;
    --bg-warm:#EFE7D9;
    --cream:#FAF6EF;
    --clay:#C97B5B;
    --clay-dark:#A6583C;
    --terra:#B85C3B;
    --olive:#6B7A4F;
    --wood:#8B6F4E;
    --ink:#2A241E;
    --ink-soft:#5A4F43;
    --gold:#B89968;
    --line:rgba(42,36,30,.12);
    --line-strong:rgba(42,36,30,.25);
    --shadow:0 30px 80px -40px rgba(42,36,30,.35);
    --radius:28px;
  }

  *{margin:0;padding:0;box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    font-family:'Manrope',sans-serif;
    background:var(--bg);
    color:var(--ink);
    line-height:1.6;
    overflow-x:hidden;
    font-weight:400;
  }

  h1,h2,h3,h4,.serif{font-family:'Fraunces',serif;font-weight:400;letter-spacing:-.02em;line-height:1.05}
  .italic{font-style:italic}

  a{color:inherit;text-decoration:none}
  img{display:block;max-width:100%}

  /* ============ GRAIN OVERLAY ============ */
  body::before{
    content:"";
    position:fixed;
    inset:0;
    pointer-events:none;
    z-index:1000;
    opacity:.35;
    mix-blend-mode:multiply;
    background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 0.2 0 0 0 0 0.15 0 0 0 0 0.1 0 0 0 0.08 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  }

  /* ============ NAVEGACIÓN ============ */
  .nav{
    position:fixed;top:0;left:0;right:0;
    z-index:100;
    padding:22px 40px;
    display:flex;align-items:center;justify-content:space-between;
    transition:all .4s ease;
    backdrop-filter:blur(0px);
  }
  .nav.scrolled{
    background:rgba(245,239,230,.88);
    backdrop-filter:blur(20px);
    padding:14px 40px;
    border-bottom:1px solid var(--line);
  }
  .logo{
    font-family:'Fraunces',serif;
    font-size:20px;
    font-weight:500;
    letter-spacing:.02em;
    line-height:1;
  }
  .logo span{
    display:block;
    font-size:10px;
    letter-spacing:.3em;
    color:var(--clay);
    margin-top:3px;
    font-family:'Manrope',sans-serif;
    font-weight:500;
  }
  .nav-links{
    display:flex;gap:36px;align-items:center;
    font-size:14px;
    font-weight:500;
  }
  .nav-links a{position:relative;transition:color .3s}
  .nav-links a::after{
    content:"";position:absolute;bottom:-6px;left:0;width:0;height:1px;
    background:var(--clay);transition:width .4s ease;
  }
  .nav-links a:hover{color:var(--clay)}
  .nav-links a:hover::after{width:100%}

  .btn{
    display:inline-flex;align-items:center;gap:10px;
    padding:14px 26px;
    border-radius:999px;
    font-weight:500;font-size:14px;
    transition:all .4s cubic-bezier(.2,.8,.2,1);
    cursor:pointer;border:none;
    font-family:'Manrope',sans-serif;
    letter-spacing:.02em;
  }
  .btn-primary{
    background:var(--ink);color:var(--cream);
  }
  .btn-primary:hover{
    background:var(--clay);
    transform:translateY(-2px);
    box-shadow:0 10px 30px -10px rgba(201,123,91,.5);
  }
  .btn-primary .arrow{transition:transform .4s}
  .btn-primary:hover .arrow{transform:translateX(4px)}

  .btn-outline{
    background:transparent;
    color:var(--ink);
    border:1px solid var(--line-strong);
  }
  .btn-outline:hover{
    background:var(--ink);color:var(--cream);border-color:var(--ink);
  }

  .menu-toggle{display:none}

  /* ============ HERO ============ */
  .hero{
    min-height:100vh;
    padding:140px 40px 80px;
    position:relative;
    display:grid;
    grid-template-columns:1.1fr 1fr;
    gap:80px;
    align-items:center;
    overflow:hidden;
  }

  .hero::before{
    content:"";
    position:absolute;
    top:-100px;right:-100px;
    width:500px;height:500px;
    background:radial-gradient(circle,var(--clay) 0%,transparent 70%);
    opacity:.15;
    border-radius:50%;
    filter:blur(40px);
  }

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

  .eyebrow{
    display:inline-flex;align-items:center;gap:12px;
    font-size:12px;letter-spacing:.25em;
    color:var(--clay);
    text-transform:uppercase;
    font-weight:600;
    margin-bottom:28px;
  }
  .eyebrow::before{
    content:"";width:32px;height:1px;background:var(--clay);
  }

  .hero h1{
    font-size:clamp(48px,7vw,92px);
    font-weight:400;
    margin-bottom:32px;
    color:var(--ink);
  }
  .hero h1 .accent{
    font-style:italic;
    color:var(--clay);
    font-weight:300;
  }

  .hero-lead{
    font-size:18px;
    line-height:1.7;
    color:var(--ink-soft);
    max-width:520px;
    margin-bottom:44px;
  }

  .hero-cta{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:60px}

  .hero-stats{
    display:grid;grid-template-columns:repeat(3,1fr);
    gap:32px;
    padding-top:40px;
    border-top:1px solid var(--line);
    max-width:520px;
  }
  .stat-num{
    font-family:'Fraunces',serif;
    font-size:40px;font-weight:400;
    color:var(--ink);
    line-height:1;
    margin-bottom:6px;
  }
  .stat-num .italic{color:var(--clay)}
  .stat-label{
    font-size:12px;color:var(--ink-soft);
    letter-spacing:.1em;text-transform:uppercase;
  }

  /* HERO VISUAL - compuesto */
  .hero-visual{
    position:relative;
    height:700px;
  }
  .hero-img-main{
    position:absolute;
    top:0;right:0;
    width:80%;height:85%;
    border-radius:var(--radius);
    overflow:hidden;
    box-shadow:var(--shadow);
  }
  .hero-img-main img{width:100%;height:100%;object-fit:cover}

  .hero-img-small{
    position:absolute;
    bottom:0;left:0;
    width:55%;height:45%;
    border-radius:var(--radius);
    overflow:hidden;
    box-shadow:var(--shadow);
    border:8px solid var(--bg);
  }
  .hero-img-small img{width:100%;height:100%;object-fit:cover}

  .hero-tag{
    position:absolute;
    bottom:40px;right:-20px;
    background:var(--cream);
    padding:18px 24px;
    border-radius:16px;
    box-shadow:0 20px 50px -20px rgba(42,36,30,.3);
    display:flex;align-items:center;gap:14px;
    font-size:13px;
    z-index:3;
  }
  .hero-tag .dot{
    width:10px;height:10px;border-radius:50%;
    background:var(--olive);
    box-shadow:0 0 0 4px rgba(107,122,79,.2);
    animation:pulse 2s infinite;
  }
  @keyframes pulse{
    0%,100%{box-shadow:0 0 0 4px rgba(107,122,79,.2)}
    50%{box-shadow:0 0 0 8px rgba(107,122,79,.1)}
  }

  /* ============ MARQUEE ============ */
  .marquee{
    overflow:hidden;
    padding:30px 0;
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
    background:var(--bg-warm);
    position:relative;
  }
  .marquee-track{
    display:flex;gap:80px;
    animation:scroll 40s linear infinite;
    white-space:nowrap;
    font-family:'Fraunces',serif;
    font-size:32px;
    font-style:italic;
    color:var(--ink-soft);
  }
  .marquee-item{display:flex;align-items:center;gap:80px}
  .marquee-item::after{
    content:"✦";
    color:var(--clay);
    font-size:20px;
    font-style:normal;
  }
  @keyframes scroll{
    to{transform:translateX(-50%)}
  }

  /* ============ SECCIONES GENERALES ============ */
  section{padding:120px 40px;position:relative}

  .container{max-width:1280px;margin:0 auto}

  .section-header{
    display:grid;
    grid-template-columns:1fr 2fr;
    gap:80px;
    margin-bottom:80px;
    align-items:end;
  }

  .section-title{
    font-size:clamp(40px,5vw,72px);
    font-weight:400;
    margin-bottom:0;
  }
  .section-title .italic{color:var(--clay)}

  .section-desc{
    font-size:17px;line-height:1.7;
    color:var(--ink-soft);
    max-width:520px;
  }

  /* ============ SOBRE NOSOTROS (intro) ============ */
  .about-preview{
    background:var(--bg-warm);
    position:relative;
    overflow:hidden;
  }
  .about-grid{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:80px;
    align-items:center;
  }
  .about-visual{position:relative;aspect-ratio:4/5;border-radius:var(--radius);overflow:hidden}
  .about-visual img{width:100%;height:100%;object-fit:cover}
  .about-visual::after{
    content:"";
    position:absolute;inset:0;
    background:linear-gradient(180deg,transparent 60%,rgba(42,36,30,.3));
  }
  .about-badge{
    position:absolute;top:24px;left:24px;
    background:var(--cream);
    padding:10px 18px;border-radius:999px;
    font-size:12px;letter-spacing:.2em;text-transform:uppercase;
    font-weight:600;color:var(--clay);
    z-index:2;
  }

  .about-text h2{
    font-size:clamp(36px,4.5vw,56px);
    margin-bottom:28px;
  }
  .about-text p{
    font-size:17px;line-height:1.8;
    color:var(--ink-soft);
    margin-bottom:20px;
  }
  .about-features{
    display:grid;gap:20px;
    margin:40px 0;
  }
  .about-feature{
    display:flex;gap:18px;align-items:start;
    padding:20px 0;
    border-bottom:1px solid var(--line);
  }
  .about-feature:last-child{border:none}
  .about-feature-num{
    font-family:'Fraunces',serif;
    font-size:24px;
    font-style:italic;
    color:var(--clay);
    min-width:30px;
  }
  .about-feature-text strong{
    display:block;
    font-weight:600;
    margin-bottom:4px;
    font-size:16px;
  }
  .about-feature-text span{
    color:var(--ink-soft);font-size:14px;
  }

  /* ============ SERVICIOS ============ */
  .services{padding-top:140px}

  .services-grid{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:2px;
    background:var(--line);
    border-radius:var(--radius);
    overflow:hidden;
  }
  .service-card{
    background:var(--cream);
    padding:48px 36px;
    transition:all .5s cubic-bezier(.2,.8,.2,1);
    cursor:pointer;
    position:relative;
    overflow:hidden;
    min-height:340px;
    display:flex;flex-direction:column;justify-content:space-between;
  }
  .service-card::before{
    content:"";
    position:absolute;inset:0;
    background:var(--ink);
    transform:translateY(100%);
    transition:transform .5s cubic-bezier(.2,.8,.2,1);
    z-index:0;
  }
  .service-card:hover::before{transform:translateY(0)}
  .service-card:hover *{color:var(--cream)}
  .service-card:hover .service-num{color:var(--clay)}
  .service-card:hover .service-arrow{
    background:var(--clay);
    transform:translate(4px,-4px) rotate(-45deg);
  }

  .service-content{position:relative;z-index:1}

  .service-num{
    font-family:'Fraunces',serif;
    font-style:italic;
    font-size:14px;
    color:var(--clay);
    margin-bottom:30px;
    display:block;
    transition:color .5s;
  }

  .service-title{
    font-size:28px;
    margin-bottom:16px;
    transition:color .5s;
  }

  .service-desc{
    font-size:14px;
    color:var(--ink-soft);
    line-height:1.7;
    transition:color .5s;
  }

  .service-arrow{
    position:relative;z-index:1;
    width:48px;height:48px;
    border-radius:50%;
    background:var(--bg-warm);
    display:flex;align-items:center;justify-content:center;
    margin-top:30px;
    transition:all .5s cubic-bezier(.2,.8,.2,1);
  }
  .service-arrow svg{width:18px;height:18px}

  /* ============ PROCESO ============ */
  .process{
    background:var(--ink);
    color:var(--cream);
    overflow:hidden;
  }
  .process .section-title{color:var(--cream)}
  .process .section-title .italic{color:var(--clay)}
  .process .section-desc{color:rgba(250,246,239,.7)}

  .process-steps{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:0;
    margin-top:40px;
  }
  .process-step{
    padding:40px 30px;
    border-left:1px solid rgba(250,246,239,.15);
    position:relative;
    transition:all .5s;
  }
  .process-step:first-child{border-left:none}
  .process-step:hover{background:rgba(250,246,239,.05)}

  .step-number{
    font-family:'Fraunces',serif;
    font-size:80px;
    font-style:italic;
    color:var(--clay);
    line-height:1;
    margin-bottom:30px;
    display:block;
  }
  .step-title{
    font-size:22px;
    margin-bottom:14px;
    color:var(--cream);
  }
  .step-desc{
    font-size:14px;
    color:rgba(250,246,239,.6);
    line-height:1.7;
  }

  /* ============ PROYECTOS ============ */
  .projects-gallery{
    display:grid;
    grid-template-columns:2fr 1fr 1fr;
    grid-template-rows:repeat(2,400px);
    gap:16px;
  }
  .project-item{
    position:relative;
    border-radius:var(--radius);
    overflow:hidden;
    cursor:pointer;
  }
  .project-item:nth-child(1){grid-row:span 2}
  .project-item:nth-child(4){grid-column:span 2}

  .project-item img{
    width:100%;height:100%;object-fit:cover;
    transition:transform .8s cubic-bezier(.2,.8,.2,1);
  }
  .project-item:hover img{transform:scale(1.05)}

  .project-overlay{
    position:absolute;inset:0;
    background:linear-gradient(180deg,transparent 40%,rgba(42,36,30,.85));
    padding:32px;
    display:flex;flex-direction:column;justify-content:flex-end;
    color:var(--cream);
    transition:all .5s;
  }
  .project-overlay .tag{
    display:inline-block;
    background:rgba(250,246,239,.15);
    backdrop-filter:blur(10px);
    padding:6px 14px;border-radius:999px;
    font-size:11px;letter-spacing:.15em;text-transform:uppercase;
    width:fit-content;
    margin-bottom:12px;
  }
  .project-overlay h3{
    font-size:26px;
    margin-bottom:6px;
  }
  .project-overlay .location{
    font-size:13px;opacity:.8;
  }

  /* ============ TESTIMONIOS ============ */
  .testimonials{
    background:var(--bg-warm);
  }
  .testimonials-grid{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:24px;
  }
  .testimonial{
    background:var(--cream);
    padding:40px 32px;
    border-radius:var(--radius);
    position:relative;
    transition:transform .4s;
  }
  .testimonial:hover{transform:translateY(-6px)}
  .testimonial .stars{
    color:var(--clay);
    font-size:18px;
    letter-spacing:4px;
    margin-bottom:20px;
  }
  .testimonial blockquote{
    font-family:'Fraunces',serif;
    font-size:19px;
    line-height:1.5;
    margin-bottom:28px;
    color:var(--ink);
    font-weight:400;
  }
  .testimonial cite{
    display:flex;align-items:center;gap:14px;
    font-style:normal;
    padding-top:20px;
    border-top:1px solid var(--line);
  }
  .avatar{
    width:44px;height:44px;
    border-radius:50%;
    background:var(--clay);
    color:var(--cream);
    font-family:'Fraunces',serif;
    font-size:18px;
    display:flex;align-items:center;justify-content:center;
    font-weight:500;
  }
  .testimonial cite strong{
    display:block;font-size:14px;font-weight:600;
  }
  .testimonial cite span{
    font-size:12px;color:var(--ink-soft);
  }

  /* ============ CTA FINAL ============ */
  .cta-final{
    position:relative;
    text-align:center;
    padding:160px 40px;
    overflow:hidden;
  }
  .cta-final::before{
    content:"";
    position:absolute;inset:0;
    background:
      radial-gradient(circle at 20% 30%,rgba(201,123,91,.15),transparent 50%),
      radial-gradient(circle at 80% 70%,rgba(107,122,79,.12),transparent 50%);
  }
  .cta-final-inner{position:relative;z-index:1;max-width:800px;margin:0 auto}

  .cta-final h2{
    font-size:clamp(48px,7vw,96px);
    line-height:.95;
    margin-bottom:32px;
  }
  .cta-final h2 .italic{color:var(--clay)}

  .cta-final p{
    font-size:19px;line-height:1.6;
    color:var(--ink-soft);
    max-width:580px;margin:0 auto 48px;
  }

  .cta-big{
    display:inline-flex;align-items:center;gap:16px;
    padding:22px 44px;
    background:var(--ink);
    color:var(--cream);
    border-radius:999px;
    font-size:16px;font-weight:500;
    transition:all .4s cubic-bezier(.2,.8,.2,1);
  }
  .cta-big:hover{
    background:var(--clay);
    transform:translateY(-3px);
    box-shadow:0 20px 40px -15px rgba(201,123,91,.5);
  }

  /* ============ FOOTER ============ */
  footer{
    background:var(--ink);
    color:var(--cream);
    padding:80px 40px 40px;
  }
  .footer-grid{
    max-width:1280px;margin:0 auto;
    display:grid;
    grid-template-columns:2fr 1fr 1fr 1fr;
    gap:60px;
    padding-bottom:60px;
    border-bottom:1px solid rgba(250,246,239,.1);
  }
  .footer-brand .logo{color:var(--cream);font-size:24px;margin-bottom:20px}
  .footer-brand p{
    font-size:14px;
    color:rgba(250,246,239,.6);
    line-height:1.7;
    margin-bottom:24px;
    max-width:300px;
  }
  .socials{display:flex;gap:12px}
  .social-btn{
    width:40px;height:40px;
    border:1px solid rgba(250,246,239,.2);
    border-radius:50%;
    display:flex;align-items:center;justify-content:center;
    transition:all .3s;
  }
  .social-btn:hover{
    background:var(--clay);border-color:var(--clay);
  }
  .social-btn svg{width:16px;height:16px}

  .footer-col h4{
    font-size:12px;
    letter-spacing:.2em;text-transform:uppercase;
    color:var(--clay);
    margin-bottom:20px;
  }
  .footer-col ul{list-style:none}
  .footer-col ul li{margin-bottom:10px}
  .footer-col ul a{
    font-size:14px;
    color:rgba(250,246,239,.7);
    transition:color .3s;
  }
  .footer-col ul a:hover{color:var(--cream)}

  .footer-bottom{
    max-width:1280px;margin:40px auto 0;
    display:flex;justify-content:space-between;
    font-size:12px;
    color:rgba(250,246,239,.4);
  }

  /* ============ WHATSAPP FLOTANTE ============ */
  .whatsapp-float{
    position:fixed;
    bottom:30px;right:30px;
    width:60px;height:60px;
    background:#25D366;
    border-radius:50%;
    display:flex;align-items:center;justify-content:center;
    box-shadow:0 10px 30px -5px rgba(37,211,102,.5);
    z-index:99;
    transition:transform .3s;
  }
  .whatsapp-float:hover{transform:scale(1.1)}
  .whatsapp-float svg{width:30px;height:30px;fill:white}

  /* ============ ANIMACIONES SCROLL ============ */
  .reveal{
    opacity:0;
    transform:translateY(40px);
    transition:opacity 1s cubic-bezier(.2,.8,.2,1),transform 1s cubic-bezier(.2,.8,.2,1);
  }
  .reveal.visible{opacity:1;transform:translateY(0)}
  .reveal.delay-1{transition-delay:.1s}
  .reveal.delay-2{transition-delay:.2s}
  .reveal.delay-3{transition-delay:.3s}
  .reveal.delay-4{transition-delay:.4s}

  .reveal-scale{
    opacity:0;
    transform:scale(.95);
    transition:opacity 1.2s ease,transform 1.2s cubic-bezier(.2,.8,.2,1);
  }
  .reveal-scale.visible{opacity:1;transform:scale(1)}

  /* ============ RESPONSIVE ============ */
  @media (max-width:1024px){
    .hero{grid-template-columns:1fr;gap:60px;padding:120px 24px 60px}
    .hero-visual{height:500px}
    .section-header{grid-template-columns:1fr;gap:30px}
    .services-grid{grid-template-columns:repeat(2,1fr)}
    .process-steps{grid-template-columns:repeat(2,1fr)}
    .process-step{border-left:none;border-top:1px solid rgba(250,246,239,.15);padding:30px}
    .process-step:nth-child(odd){border-left:none}
    .projects-gallery{grid-template-columns:1fr 1fr;grid-template-rows:repeat(3,300px)}
    .project-item:nth-child(1){grid-row:span 1}
    .project-item:nth-child(4){grid-column:span 1}
    .testimonials-grid{grid-template-columns:1fr}
    .about-grid{grid-template-columns:1fr;gap:50px}
    .footer-grid{grid-template-columns:1fr 1fr;gap:40px}
  }
  @media (max-width:640px){
    section{padding:80px 24px}
    .nav{padding:18px 24px}
    .nav-links{display:none}
    .menu-toggle{display:flex;flex-direction:column;gap:5px;cursor:pointer;background:none;border:none;padding:8px}
    .menu-toggle span{width:24px;height:1.5px;background:var(--ink)}
    .services-grid{grid-template-columns:1fr}
    .process-steps{grid-template-columns:1fr}
    .projects-gallery{grid-template-columns:1fr;grid-template-rows:repeat(5,280px)}
    .hero-stats{grid-template-columns:1fr 1fr;gap:20px}
    .footer-grid{grid-template-columns:1fr;gap:30px}
    .footer-bottom{flex-direction:column;gap:10px;text-align:center}
    .hero-tag{right:0}
  }