/* ===================================================================
   FONTANERO BARCELONA POBLENOU — blueprint / technical-drawing system
   =================================================================== */

:root{
  --navy:#14213D;
  --navy-deep:#0B1526;
  --copper:#C1662D;
  --copper-light:#E0955C;
  --sky:#8CB4D6;
  --paper:#EEF1EF;
  --paper-dim:#E2E7E3;
  --ink:#14213D;
  --gray:#5B6470;
  --line: rgba(20,33,61,0.16);
  --line-light: rgba(238,241,239,0.18);

  --font-display:'Syne', sans-serif;
  --font-body:'Work Sans', sans-serif;
  --font-mono:'JetBrains Mono', monospace;

  --maxw: 1180px;
}

*{box-sizing:border-box; margin:0; padding:0;}
html{scroll-behavior:smooth;}
body{
  background:var(--paper); color:var(--ink);
  font-family:var(--font-body); line-height:1.55;
  overflow-x:hidden; -webkit-font-smoothing:antialiased;
}
img,svg{display:block; max-width:100%;}
a{color:inherit; text-decoration:none;}

.blueprint-overlay{
  position:fixed; inset:0; z-index:999; pointer-events:none; opacity:.025;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.tag{
  display:inline-block; font-family:var(--font-mono); font-size:.7rem;
  letter-spacing:.14em; text-transform:uppercase; color:var(--copper); margin-bottom:14px;
}
.section-head.light .tag{ color:var(--copper-light); }

/* ---------- buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  padding:16px 30px; font-family:var(--font-display); font-weight:700; font-size:1rem;
  letter-spacing:.01em; border-radius:2px; border:1.5px solid transparent;
  transition:transform .18s ease, box-shadow .18s ease, background .18s ease;
  cursor:pointer;
}
.btn-primary{ background:var(--copper); color:var(--paper); box-shadow:0 0 0 1.5px var(--navy) inset, 5px 5px 0 var(--navy); }
.btn-primary:hover{ transform:translate(-3px,-3px); box-shadow:0 0 0 1.5px var(--navy) inset, 8px 8px 0 var(--navy); background:var(--copper-light); }
.btn-ghost{ border-color:var(--navy); color:var(--navy); background:transparent; }
.btn-ghost:hover{ background:var(--navy); color:var(--paper); }
.btn.small{ padding:12px 22px; font-size:.85rem; }

.btn-call{
  display:flex; align-items:center; gap:8px; font-family:var(--font-mono); font-weight:500; font-size:.92rem;
  background:var(--navy); color:var(--paper); padding:11px 18px; border-radius:2px;
  transition:background .18s ease;
}
.btn-call:hover{ background:var(--copper); }

/* ===================== HEADER ===================== */
.site-header{ position:sticky; top:0; z-index:100; background:var(--paper); }
.header-inner{
  max-width:var(--maxw); margin:0 auto; display:flex; align-items:center; justify-content:space-between;
  padding:16px 24px; gap:24px;
}
.header-rule{ height:2px; background:repeating-linear-gradient(90deg, var(--navy) 0 10px, transparent 10px 18px); }
.logo{ display:flex; align-items:center; gap:10px; flex-shrink:0; }
.logo-text{ font-family:var(--font-display); font-weight:800; font-size:1.2rem; line-height:1; letter-spacing:-.01em; }
.logo-text em{
  display:block; font-style:normal; font-family:var(--font-mono); font-weight:400; font-size:.6rem;
  letter-spacing:.1em; text-transform:uppercase; color:var(--copper); margin-top:3px;
}
.main-nav{ display:flex; gap:26px; }
.main-nav a{ font-family:var(--font-mono); font-size:.82rem; text-transform:uppercase; letter-spacing:.03em; position:relative; padding-bottom:3px; }
.main-nav a::after{ content:''; position:absolute; left:0; bottom:0; width:0; height:2px; background:var(--copper); transition:width .2s ease; }
.main-nav a:hover::after{ width:100%; }
.header-actions{ display:flex; align-items:center; gap:12px; flex-shrink:0; }
.burger{ display:none; flex-direction:column; gap:5px; background:none; border:0; cursor:pointer; padding:6px; }
.burger span{ width:24px; height:2px; background:var(--navy); }

/* ===================== HERO ===================== */
.hero{ position:relative; padding:70px 24px 0; overflow:hidden; }
.hero-grid{
  position:absolute; inset:0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size:40px 40px;
  -webkit-mask-image:linear-gradient(180deg, #000 0%, transparent 85%);
  mask-image:linear-gradient(180deg, #000 0%, transparent 85%);
}
.hero-inner{
  position:relative; z-index:1; max-width:var(--maxw); margin:0 auto;
  display:grid; grid-template-columns:1.1fr .9fr; gap:50px; align-items:center;
  padding-bottom:60px;
}
.eyebrow{
  display:inline-flex; align-items:center; gap:8px; font-family:var(--font-mono); font-size:.8rem;
  letter-spacing:.05em; text-transform:uppercase; color:var(--copper); margin-bottom:22px;
}
.eyebrow .tick{ color:var(--navy); }
.hero h1{
  font-family:var(--font-display); font-weight:800; font-size:clamp(2.6rem, 5.2vw, 4.4rem);
  line-height:1.02; letter-spacing:-.01em;
}
.hero h1 .ink-outline{ color:transparent; -webkit-text-stroke:1.5px var(--navy); }
.hero-sub{ max-width:480px; font-size:1.08rem; color:var(--gray); margin:24px 0 32px; }
.hero-cta{ display:flex; flex-wrap:wrap; gap:16px; }

.hero-photo{
  position:relative; border-radius:6px; overflow:hidden; aspect-ratio:3/4;
  box-shadow:14px 14px 0 var(--navy);
}
.spec-tag{
  position:absolute; z-index:2; font-family:var(--font-mono); font-size:.7rem; letter-spacing:.05em;
  color:var(--paper); background:rgba(11,21,38,.65); border:1px solid var(--copper-light);
  padding:5px 10px; border-radius:20px;
}
.spec-tag-a{ top:16px; left:16px; }
.spec-tag-b{ bottom:16px; right:16px; }

.hero-strip{
  background:var(--navy); color:var(--paper); overflow:hidden; white-space:nowrap;
  padding:12px 0; display:flex; gap:18px;
  font-family:var(--font-mono); font-size:.78rem; letter-spacing:.08em;
}
.hero-strip span{ flex-shrink:0; }
.hero-strip span:nth-child(odd){ color:var(--copper-light); }

/* ---- duotone photo treatment ---- */
.photo-duotone{ position:relative; overflow:hidden; background:var(--navy); }
.photo-duotone img{ width:100%; height:100%; object-fit:cover; display:block; filter:grayscale(1) contrast(1.15) brightness(0.85); }
.photo-duotone::before{
  content:''; position:absolute; inset:0;
  background:linear-gradient(150deg, var(--navy-deep) 10%, var(--copper) 100%);
  mix-blend-mode:color; pointer-events:none;
}
.photo-duotone::after{ content:''; position:absolute; inset:0; background:var(--sky); mix-blend-mode:soft-light; opacity:.35; pointer-events:none; }

/* ===================== SECTION HEAD ===================== */
.section-head{ max-width:var(--maxw); margin:0 auto; padding:100px 24px 50px; }
.section-head h2{ font-family:var(--font-display); font-weight:800; font-size:clamp(2rem, 4.6vw, 3.2rem); line-height:1.04; }
.section-head.light h2{ color:var(--paper); }

/* ===================== SERVICIOS ===================== */
.servicios-grid{
  max-width:var(--maxw); margin:0 auto; padding:0 24px 110px;
  display:grid; grid-template-columns:repeat(4, 1fr); gap:1px; background:var(--line); border:1px solid var(--line);
}
.serv-card{ position:relative; background:var(--paper); padding:32px 24px; transition:background .2s ease, transform .2s ease; }
.serv-num{ font-family:var(--font-mono); font-size:.75rem; color:var(--gray); margin-bottom:18px; }
.serv-card svg{ width:34px; height:34px; margin-bottom:18px; }
.serv-card h3{ font-family:var(--font-display); font-weight:700; font-size:1.18rem; margin-bottom:10px; }
.serv-card p{ font-size:.9rem; color:var(--gray); }
.serv-card:hover{ background:var(--paper-dim); transform:translateY(-4px); }

/* ===================== VENTAJAS (dark navy) ===================== */
.ventajas{ background:var(--navy); color:var(--paper); }
.ventajas-inner{ max-width:var(--maxw); margin:0 auto; padding-bottom:20px; }
.ventajas-inner .section-head{ padding-bottom:40px; }
.ventajas-list{ padding:0 24px 110px; display:grid; grid-template-columns:1fr 1fr; gap:1px; background:var(--line-light); border:1px solid var(--line-light); }
.ventaja-row{ display:flex; gap:20px; padding:34px; background:var(--navy); }
.ventaja-mark{ font-family:var(--font-display); font-weight:800; font-size:1.8rem; color:var(--copper); flex-shrink:0; }
.ventaja-row h3{ font-family:var(--font-display); font-size:1.2rem; margin-bottom:8px; }
.ventaja-row p{ color:#b7c0cf; font-size:.92rem; }

/* ===================== ZONA ===================== */
.zona{ padding:0 24px 110px; }
.zona-card{
  max-width:var(--maxw); margin:0 auto; border:1px solid var(--line); border-radius:6px;
  display:grid; grid-template-columns:1fr 1fr; overflow:hidden;
}
.zona-left{ padding:64px 54px; }
.zona-left h2{ font-family:var(--font-display); font-weight:800; font-size:clamp(1.8rem,3.6vw,2.6rem); margin:10px 0 26px; line-height:1.05; }
.zona-addr{ font-family:var(--font-mono); font-size:.92rem; color:var(--gray); margin-bottom:28px; line-height:1.7; }
.zona-right{ background:var(--paper-dim); display:flex; align-items:center; padding:54px; }
.zona-chips{ display:flex; flex-wrap:wrap; gap:10px; }
.zona-chips span{
  font-family:var(--font-mono); font-size:.78rem; text-transform:uppercase; letter-spacing:.02em;
  padding:9px 16px; border:1px solid var(--navy); border-radius:30px; transition:background .15s ease, color .15s ease;
}
.zona-chips span:hover{ background:var(--copper); border-color:var(--copper); color:var(--paper); }

/* ===================== CTA STRIP ===================== */
.cta-strip{
  max-width:var(--maxw); margin:0 auto; padding:70px 24px;
  display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:24px;
  border-top:1px solid var(--line); border-bottom:1px solid var(--line);
}
.cta-strip p{ font-family:var(--font-display); font-weight:700; font-size:clamp(1.4rem, 3vw, 2rem); max-width:520px; }

/* ===================== FAQ ===================== */
.faq-list{ max-width:var(--maxw); margin:0 auto; padding:0 24px 110px; }
.faq-item{ border-top:1px solid var(--line); }
.faq-item:last-child{ border-bottom:1px solid var(--line); }
.faq-q{
  width:100%; display:flex; justify-content:space-between; align-items:center; background:none; border:0;
  color:var(--ink); cursor:pointer; font-family:var(--font-display); font-size:1.15rem; font-weight:700;
  padding:24px 0; text-align:left;
}
.faq-q span{ font-family:var(--font-mono); color:var(--copper); font-size:1.3rem; transition:transform .2s ease; }
.faq-item.open .faq-q span{ transform:rotate(45deg); }
.faq-a{ max-height:0; overflow:hidden; transition:max-height .3s ease; }
.faq-a p{ color:var(--gray); padding-bottom:24px; max-width:600px; }
.faq-item.open .faq-a{ max-height:200px; }

/* ===================== FOOTER ===================== */
.site-footer{ background:var(--navy-deep); color:var(--paper); }
.footer-inner{ max-width:var(--maxw); margin:0 auto; padding:70px 24px 40px; display:grid; grid-template-columns:1.6fr 1fr 1fr; gap:40px; }
.footer-brand p{ color:#9aa3b0; margin-top:14px; max-width:260px; font-size:.9rem; }
.footer-col h4{ font-family:var(--font-mono); font-size:.72rem; text-transform:uppercase; letter-spacing:.08em; color:var(--copper); margin-bottom:16px; }
.footer-col a, .footer-col p{ display:block; color:#c3cad4; margin-bottom:10px; font-size:.9rem; }
.footer-col a:hover{ color:var(--copper-light); }
.footer-bottom{
  border-top:1px solid var(--line-light); max-width:var(--maxw); margin:0 auto; padding:22px 24px;
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px;
  font-family:var(--font-mono); font-size:.75rem; color:#7c8494;
}

/* ===================== REVEAL ===================== */
[data-reveal]{ opacity:0; transform:translateY(22px); transition:opacity .6s ease, transform .6s ease; }
[data-reveal].in{ opacity:1; transform:translateY(0); }

/* ===================== RESPONSIVE ===================== */
@media (max-width:980px){
  .main-nav{ display:none; }
  .burger{ display:flex; }
  .hero-inner{ grid-template-columns:1fr; }
  .hero-photo{ aspect-ratio:16/10; }
  .servicios-grid{ grid-template-columns:repeat(2,1fr); }
  .ventajas-list{ grid-template-columns:1fr; }
  .zona-card{ grid-template-columns:1fr; }
  .zona-left{ padding:48px 32px; }
  .zona-right{ padding:32px; }
  .footer-inner{ grid-template-columns:1fr 1fr; }
}
@media (max-width:600px){
  .servicios-grid{ grid-template-columns:1fr; }
  .header-actions .btn-call span{ display:none; }
  .footer-inner{ grid-template-columns:1fr; }
  .cta-strip{ flex-direction:column; align-items:flex-start; }
}

.main-nav.open{
  display:flex; position:absolute; top:100%; left:0; right:0; background:var(--paper);
  flex-direction:column; padding:20px 24px; gap:18px; border-bottom:1px solid var(--line);
}