/* public/assets/css/main.css
   CSS completo portado del mockup aprobado (Paso 3: caresa-rediseno.html).
   Paleta e identidad negro/rojo/gris de CARESA SRL. */

:root{
  --negro:#151515; --negro2:#0e0e0e; --rojo:#C81E1E; --rojo-d:#9c1717;
  --gris:#6b6f76; --gris-claro:#f1f1f0; --blanco:#ffffff;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:'Inter',sans-serif;color:var(--negro);background:var(--blanco);line-height:1.5}
h1,h2,h3{font-family:'Oswald',sans-serif;text-transform:uppercase;letter-spacing:.3px}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}

/* header / nav */
header{position:sticky;top:0;background:var(--blanco);border-bottom:3px solid var(--rojo);z-index:10}
.nav{display:flex;align-items:center;justify-content:space-between;padding:14px 24px;max-width:1120px;margin:0 auto;gap:20px}
.brand{display:flex;align-items:center}
.brand-logo{height:40px;width:auto;display:block}
.brand-word{font-family:'Oswald';font-weight:700;font-size:21px;letter-spacing:1px}
.brand-word span{color:var(--rojo)}
.nav ul{display:flex;gap:20px;list-style:none}
.nav ul a{color:#3a3a3a;font-size:13.5px;font-weight:500;transition:color .15s;white-space:nowrap}
.nav ul a:hover{color:var(--rojo)}
.nav-actions{display:flex;align-items:center;gap:12px}
.nav-search{display:flex;align-items:center;border:1px solid #ddd;border-radius:2px;padding:7px 10px;gap:6px}
.nav-search input{border:0;outline:0;font-size:13px;width:130px;font-family:'Inter'}
.nav-search svg{width:15px;height:15px;color:var(--gris);flex:none}

/* dropdown Descargas */
.has-drop{position:relative}
.drop{display:none;position:absolute;top:100%;left:0;background:#fff;border:1px solid #e4e4e2;box-shadow:0 8px 20px rgba(0,0,0,.08);min-width:190px;padding:6px;z-index:20}
.has-drop:hover .drop{display:block}
.drop a{display:flex;align-items:center;justify-content:space-between;padding:9px 12px;font-size:13.5px;border-radius:2px}
.drop a:hover{background:var(--gris-claro)}
.drop a.locked{color:#aaa;cursor:pointer}
.drop a.locked:hover{color:var(--rojo)}
.drop svg{width:14px;height:14px}

/* botones */
.btn{padding:12px 22px;font-weight:600;font-size:14px;border-radius:2px;display:inline-block;border:2px solid transparent;cursor:pointer;font-family:'Inter'}
.btn-primary{background:var(--rojo);color:#fff}
.btn-primary:hover{background:var(--rojo-d)}
.btn-outline{border-color:#555;color:var(--negro)}
.btn-outline:hover{border-color:var(--negro)}
.nav-btn{background:var(--rojo);color:#fff;padding:9px 16px;font-size:14px;font-weight:600;border-radius:2px;display:flex;align-items:center;gap:7px;border:0;cursor:pointer;font-family:'Inter'}
.nav-btn svg{width:16px;height:16px}

/* hero */
.hero{background:linear-gradient(120deg,var(--negro) 55%,var(--negro2) 55%);color:#fff;padding:64px 0}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;max-width:1120px;margin:0 auto;padding:0 24px}
.hero h1{font-size:40px;line-height:1.1;margin-bottom:16px}
.hero h1 em{font-style:normal;color:var(--rojo)}
.hero p{color:#b9b9b9;font-size:16px;max-width:46ch;margin-bottom:26px}
.hero-ctas{display:flex;gap:14px}
.hero-art{aspect-ratio:1/1;background:repeating-linear-gradient(45deg,#1f1f1f 0 2px,transparent 2px 22px);border:1px solid #2a2a2a;display:flex;align-items:center;justify-content:center}
.hero-art svg{width:62%;color:var(--rojo)}

/* stats */
.stats{background:var(--rojo);color:#fff}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);text-align:center;padding:26px 0;max-width:1120px;margin:0 auto}
.stats-grid div{padding:8px;border-left:1px solid rgba(255,255,255,.25)}
.stats-grid div:first-child{border-left:none}
.stats-grid b{display:block;font-family:'Oswald';font-size:26px}
.stats-grid span{font-size:13px;color:#ffdcdc}

/* about / sucursales */
.about{background:var(--gris-claro)}
.about-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:44px;align-items:center}
.about-visual{background:var(--negro);aspect-ratio:4/3;position:relative;overflow:hidden}
.about-visual::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(-45deg,rgba(200,30,30,.15) 0 3px,transparent 3px 30px)}

/* carrusel genérico (fábrica / sucursales) */
.carousel{position:relative;overflow:hidden}
.carousel-track{display:flex;height:100%;transition:transform .35s ease}
.carousel-slide{flex:0 0 100%;height:100%}
.carousel-slide img{width:100%;height:100%;object-fit:cover;display:block;position:relative;z-index:1}
.carousel-arrow{position:absolute;top:50%;transform:translateY(-50%);background:rgba(0,0,0,.5);color:#fff;border:0;width:28px;height:28px;border-radius:50%;cursor:pointer;font-size:15px;z-index:2}
.carousel-arrow:hover{background:rgba(0,0,0,.75)}
.carousel-arrow.prev{left:8px}
.carousel-arrow.next{right:8px}
.carousel-dots{position:absolute;bottom:10px;left:0;right:0;display:flex;justify-content:center;gap:6px;z-index:2}
.carousel-dot{width:7px;height:7px;border-radius:50%;background:rgba(255,255,255,.6);cursor:pointer;border:0;padding:0}
.carousel-dot.active{background:#fff}
.about p{color:#4d4d4d;margin-bottom:14px;max-width:56ch}
.suc-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.suc-card{border:1px solid #e4e4e2;padding:24px;background:#fff;overflow:hidden}
.suc-photo{width:calc(100% + 48px);height:160px;margin:-24px -24px 16px -24px}
.tag-suc{display:inline-block;font-size:11px;font-weight:600;padding:3px 9px;border-radius:10px;margin-bottom:10px}
.tag-suc.venta{background:#e6f4ea;color:#1e7a3d}
.tag-suc.nv{background:var(--gris-claro);color:var(--gris)}
.tag-suc.nr{background:var(--gris-claro);color:var(--rojo-d)}
.suc-card h3{font-size:17px;margin-bottom:10px}
.suc-card p{font-size:13.5px;color:#4d4d4d;margin-bottom:4px}
.suc-card a{color:var(--rojo);font-weight:600;font-size:13.5px}

/* catálogo / listas de precios */
.catalog{background:var(--negro);color:#fff}
.catalog-grid{display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap;max-width:1120px;margin:0 auto;padding:44px 24px}
.catalog h2{font-size:24px}
.catalog p{color:#b9b9b9;max-width:50ch;margin-top:6px}
.catalog-row{border-top:1px solid #2a2a2a;padding-top:26px;padding-bottom:26px}

/* modal login */
.modal-overlay{display:none;position:fixed;inset:0;background:rgba(15,15,15,.55);z-index:50;align-items:center;justify-content:center;padding:20px}
.modal-overlay.open{display:flex}
.modal-box{background:#fff;width:100%;max-width:360px;padding:28px;position:relative}
.modal-box h3{font-size:18px;margin-bottom:4px}
.modal-box p{font-size:13px;color:var(--gris);margin-bottom:20px}
.modal-box label{display:block;font-size:12.5px;color:var(--gris);margin-bottom:6px;margin-top:14px}
.modal-box input{width:100%;padding:11px 12px;border:1px solid #ddd;border-radius:2px;font-size:14px}
.modal-box .btn-primary{width:100%;margin-top:22px;border:0;cursor:pointer}
.modal-close{position:absolute;top:16px;right:18px;background:none;border:0;font-size:20px;cursor:pointer;color:var(--gris)}

/* miniatura de producto + lightbox de zoom */
.prod-thumb-cell{width:auto}
.prod-thumb{max-width:140px;max-height:140px;width:auto;height:auto;border:1px solid #e4e4e2;padding:4px;background:#fff;cursor:zoom-in;display:block}
.prod-thumb-empty{width:52px;height:52px;border:1px dashed #ddd;display:flex;align-items:center;justify-content:center;color:#ccc;font-size:10px;text-align:center}
.lightbox-overlay{display:none;position:fixed;inset:0;background:rgba(10,10,10,.85);z-index:60;align-items:center;justify-content:center;padding:30px}
.lightbox-overlay.open{display:flex}
.lightbox-overlay img{max-width:100%;max-height:85vh;background:#fff}
.lightbox-close{position:absolute;top:20px;right:26px;background:none;border:0;color:#fff;font-size:30px;cursor:pointer;line-height:1}

/* secciones genéricas */
.section{padding:44px 0;max-width:1120px;margin:0 auto}
.section-head{margin-bottom:30px}
.eyebrow{color:var(--rojo);font-weight:600;font-size:13px}
.section h1{font-size:28px;margin-bottom:6px}
.section h2{font-size:26px;margin-bottom:6px}
.breadcrumb{font-size:12.5px;color:var(--gris);margin-bottom:18px}
.breadcrumb a:hover{color:var(--rojo)}

/* grillas de marcas */
.marcas-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;list-style:none}
.marca-card,.marcas-grid li{border:1px solid #e4e4e2;padding:20px 10px;text-align:center;font-weight:600;font-size:13.5px;transition:.15s}
.marcas-grid li a{display:block}
.marca-card:hover,.marcas-grid li:hover{border-color:var(--rojo);color:var(--rojo);transform:translateY(-2px)}

/* rubros */
.rubros-list{list-style:none;display:grid;gap:14px}
.rubro-row,.rubros-list li{display:flex;justify-content:space-between;align-items:center;border:1px solid #e4e4e2;padding:20px 22px;transition:.15s}
.rubro-row:hover,.rubros-list li:hover{border-color:var(--rojo)}

/* rubros con foto (grilla de tarjetas) */
.rubros-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;list-style:none}
.rubro-tile{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--negro);display:block}
.rubro-tile img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .3s ease}
.rubro-tile:hover img{transform:scale(1.06)}
.rubro-tile::after{content:"";position:absolute;inset:0;background:linear-gradient(to top, rgba(0,0,0,.75), rgba(0,0,0,.05) 55%);pointer-events:none}
.rubro-tile h3{position:absolute;left:16px;bottom:14px;right:16px;color:#fff;font-size:16px;z-index:2;margin:0}

/* tabla de productos */
table.prod{width:100%;border-collapse:collapse;font-size:13.5px;margin-top:10px}
table.prod th{text-align:left;background:var(--gris-claro);padding:11px 14px;font-family:'Oswald';font-weight:600;font-size:12px;letter-spacing:.5px;text-transform:uppercase;color:#444}
table.prod td{padding:12px 14px;border-bottom:1px solid #eee}
table.prod tr:hover td{background:#fafafa}
.file-badge{display:inline-block;background:var(--gris-claro);color:#555;font-size:11px;font-weight:600;padding:3px 9px;border-radius:3px;letter-spacing:.3px}

/* sin acceso (listas de precios) */
.no-access{background:var(--gris-claro);border:1px solid #e4e4e2;padding:36px 30px;text-align:center;max-width:480px}
.no-access p{margin-bottom:10px;color:#444;font-size:14px}
.no-access p b{color:var(--negro)}

/* contacto */
.contacto-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start}
.contacto-bloque{margin-bottom:28px}
.contacto-bloque h3{font-size:16px;margin-bottom:8px}
.contacto-bloque p{color:#4d4d4d;font-size:14px;margin-bottom:8px}
.contacto-bloque a{color:var(--rojo);font-weight:600}
.contacto-form form label{display:block;font-size:12.5px;color:var(--gris);margin-bottom:6px;margin-top:14px}
.contacto-form form label:first-child{margin-top:0}
.contacto-form form .req{color:var(--rojo);font-weight:400}
.contacto-form form input,.contacto-form form textarea{width:100%;padding:11px 12px;border:1px solid #ddd;border-radius:2px;font-size:14px;font-family:'Inter'}
.contacto-form form textarea{resize:vertical}
.campo-error{color:var(--rojo);font-size:12px;margin-top:5px}
.contacto-ok{background:var(--gris-claro);border:1px solid #e4e4e2;padding:28px}
.contacto-ok p{margin-bottom:6px;font-size:14px}

@media(max-width:820px){
  .contacto-grid{grid-template-columns:1fr}
}
.aplicacion-row{padding:3px 0;font-size:13px}
.aplicacion-row:not(:last-child){border-bottom:1px dashed #eee}

/* footer */
footer{background:var(--negro2);color:#9a9a9a;padding:40px 24px 22px;font-size:13.5px}
.foot-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:32px;margin-bottom:26px;max-width:1120px;margin-left:auto;margin-right:auto}
.foot-grid h4{color:#fff;font-family:'Oswald';font-size:14px;margin-bottom:12px;letter-spacing:.5px}
.foot-grid ul{list-style:none;display:flex;flex-direction:column;gap:8px}
.foot-bottom{border-top:1px solid #262626;padding-top:16px;max-width:1120px;margin:0 auto;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}

@media(max-width:820px){
  .nav ul,.nav-actions{display:none}
  .marcas-grid{grid-template-columns:repeat(2,1fr)}
  .rubros-grid{grid-template-columns:repeat(2,1fr)}
  table.prod{display:block;overflow-x:auto}
  .hero-grid,.about-grid,.suc-grid{grid-template-columns:1fr}
  .hero{background:var(--negro)}
  .stats-grid{grid-template-columns:repeat(2,1fr);row-gap:16px}
  .foot-grid{grid-template-columns:1fr}
}