:root {
  --primary-color:#2c3e50; --secondary-color:#3498db;
  --dark-color:#2c3e50; --light-color:#ecf0f1;
  --shadow:0 2px 10px rgba(0,0,0,.1); --transition:.3s ease;
}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:'Segoe UI',sans-serif;background:#f9f9f9;color:#333}

/* A11y */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* Header/Nav */
.site-header{display:flex;justify-content:space-between;align-items:center;padding:1rem 2rem;background:#fff;box-shadow:var(--shadow);flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:1rem}
.logo{width:80px;height:auto}
.page-title{color:var(--primary-color)}
.nav{display:flex;gap:1.5rem}
.nav a{text-decoration:none;color:var(--primary-color);transition:var(--transition)}
.nav a:hover{color:var(--secondary-color)}

/* Filtros */
.filters{background:#fff;padding:1.5rem 2rem;margin:1rem 0;box-shadow:var(--shadow)}
.filter-bar{display:flex;gap:1rem;flex-wrap:wrap}
.filter-bar input,.filter-bar select{padding:.7rem;border:1px solid #ddd;border-radius:6px;flex:1;min-width:180px}
.results-meta{color:#666;font-size:.95rem}

/* Cards */
.catalog-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1.5rem;padding:0 2rem 2rem}
.card{background:#fff;border-radius:10px;overflow:hidden;box-shadow:var(--shadow);transition:transform .2s ease;display:flex;flex-direction:column}
.card:hover{transform:translateY(-4px)}
.card img{width:100%;height:180px;object-fit:cover}
.card-body{padding:1.2rem;display:flex;flex-direction:column}
.card-title{color:var(--primary-color);margin-bottom:.5rem}
.card-desc{color:#555;flex-grow:1;margin-bottom:1rem}
.facts{list-style:none;margin-bottom:1rem}
.facts li{margin-bottom:.4rem}

/* Botones */
.btn,.btn-outline,.btn-secondary{padding:.6rem 1.2rem;border-radius:6px;cursor:pointer;text-decoration:none;transition:var(--transition);display:inline-block;text-align:center}
.btn{background:var(--secondary-color);color:#fff;border:none}
.btn:hover{background:#2980b9}
.btn-outline{border:1px solid var(--secondary-color);color:var(--secondary-color);background:transparent}
.btn-outline:hover{background:var(--secondary-color);color:#fff}
.btn-secondary{background:var(--light-color);color:var(--dark-color);border:none}
.btn-secondary:hover{background:#ddd}

/* Modal contacto */
.modal{position:fixed;inset:0;background:rgba(0,0,0,.5);display:flex;align-items:center;justify-content:center;z-index:50}
.modal.hidden{display:none}
.modal-content{background:#fff;padding:2rem;border-radius:12px;width:90%;max-width:420px;text-align:center;box-shadow:0 10px 30px rgba(0,0,0,.2);position:relative}
.close{position:absolute;top:10px;right:12px;font-size:1.5rem;cursor:pointer;background:transparent;border:0}

/* Carta ¿Quiénes Somos? */
.about-modal{position:fixed;inset:0;background:linear-gradient(120deg,rgba(0,0,0,.5),rgba(0,0,0,.35));display:flex;align-items:center;justify-content:center;padding:2rem;z-index:60;backdrop-filter:blur(2px)}
.about-modal.hidden{display:none}
.about-wrap{position:relative;width:min(920px,94vw);max-height:92vh;overflow:auto}
.about-close{position:absolute;top:-12px;right:-12px;background:#fff;border:0;box-shadow:0 6px 16px rgba(0,0,0,.3);width:40px;height:40px;border-radius:999px;cursor:pointer}
.about-ribbon{position:absolute;top:8px;left:-18px;transform:rotate(-8deg);background:linear-gradient(90deg,#7c3aed,#06b6d4);color:#fff;padding:8px 22px;font-weight:800;border-radius:8px;box-shadow:0 10px 24px rgba(0,0,0,.25);z-index:1}
.about-paper{background:#fff;border-radius:16px;padding:1.5rem 1.5rem 1.75rem;box-shadow:0 16px 40px rgba(0,0,0,.25);border:1px solid rgba(0,0,0,.06)}
.about-head{display:flex;align-items:center;gap:1rem;margin-bottom:.5rem}
.about-seal{width:72px;height:72px;object-fit:contain;filter:drop-shadow(0 2px 6px rgba(0,0,0,.15))}
.about-sub{color:#667;margin-top:.15rem}
.about-badges{display:flex;flex-wrap:wrap;gap:.5rem;margin:.25rem 0 1rem}
.pill{background:#f1f7fe;color:#2563eb;border:1px solid #cfe6ff;padding:.4rem .7rem;border-radius:999px;font-size:.9rem}
.about-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:.8rem;margin:.6rem 0 1.2rem}
.stat{background:#f9fbff;border:1px solid #eaf1ff;border-radius:12px;padding:.9rem;text-align:center}
.stat-num{display:block;font-size:1.35rem;font-weight:800;color:var(--primary-color)}
.stat-label{display:block;font-size:.85rem;color:#667}
.about-split{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-bottom:1rem}
.about-block{background:#fff;border:1px solid #eee;border-radius:12px;padding:1rem;position:relative}
.about-collage{display:grid;grid-template-columns:2fr 1fr;gap:.75rem;margin:.2rem 0 1rem}
.about-collage img{width:100%;height:140px;object-fit:cover;border-radius:10px;box-shadow:0 8px 18px rgba(0,0,0,.12)}
.about-collage img:nth-child(2){grid-row:span 2;height:100%}
.about-quote{margin:.6rem 0 1rem;padding:.9rem 1rem;background:#f7fbff;border-left:4px solid var(--secondary-color);color:#334;font-style:italic;border-radius:8px}
.about-actions{display:flex;gap:.6rem;flex-wrap:wrap}
.about-sign{margin-top:.9rem;color:#667;display:flex;align-items:center;gap:.5rem;font-size:.95rem}
.sign-divider{opacity:.5}
.about-tel{color:var(--secondary-color);text-decoration:none}
.about-tel:hover{text-decoration:underline}

/* Empty-state */
.empty-state{grid-column:1/-1;text-align:center;padding:3rem;color:#666}
.empty-state h3{margin-bottom:1rem;color:var(--primary-color)}

/* Footer */
.footer{background:var(--dark-color);color:#fff;text-align:center;padding:2rem}

/* Responsive */
@media (max-width:768px){
  .site-header{gap:.75rem}
  .about-split{grid-template-columns:1fr}
  .about-collage{grid-template-columns:1fr}
  .about-ribbon{display:none}
}