/* =========================================================
   DISEÑO: "Taller Moderno" — Material Design aplicado a una
   identidad de ferretería / vidriería / aluminio.
   Paleta: azul acero (marca), gris aluminio (estructura),
   naranja de seguridad (acción/CTA), verde oferta.
   Tipografía: Barlow Condensed (display, técnica/industrial)
   + Inter (texto).
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Barlow+Condensed:wght@500;600;700;800&family=Inter:wght@400;500;600;700&display=swap');

:root{
  --azul-acero: #16324F;
  --azul-acero-700: #1E3F63;
  --azul-acero-100: #E7EDF3;
  --gris-aluminio: #6E7A88;
  --gris-claro: #F4F6F8;
  --blanco: #FFFFFF;
  --naranja: #FF6A28;
  --naranja-700: #E4571C;
  --verde-oferta: #2E7D4F;
  --texto: #1B2430;
  --texto-suave: #5B6673;
  --borde: #E1E6EB;
  --radius-s: 8px;
  --radius-m: 14px;
  --radius-l: 22px;
  --elev-1: 0 1px 2px rgba(22,50,79,.08), 0 1px 3px rgba(22,50,79,.06);
  --elev-2: 0 4px 10px rgba(22,50,79,.10), 0 2px 4px rgba(22,50,79,.06);
  --elev-3: 0 12px 28px rgba(22,50,79,.16);
  --font-display: 'Barlow Condensed', sans-serif;
  --font-body: 'Inter', sans-serif;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--texto);
  background:var(--blanco);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%; display:block;}
a{text-decoration:none; color:inherit;}
ul{list-style:none; margin:0; padding:0;}
button{font-family:inherit; cursor:pointer;}

h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:700;
  letter-spacing:.2px;
  line-height:1.08;
  margin:0 0 .5em;
  color:var(--azul-acero);
}
.container{max-width:1240px; margin:0 auto; padding:0 24px;}
.eyebrow{
  font-family:var(--font-display);
  font-weight:600;
  letter-spacing:2.5px;
  text-transform:uppercase;
  color:var(--naranja);
  font-size:13px;
}

/* ---------- Barra superior de aviso ---------- */
.topbar{
  background:var(--azul-acero);
  color:#CFE0EF;
  font-size:13px;
  padding:8px 0;
}
.topbar .container{display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:6px;}
.topbar a{color:#fff; font-weight:600;}

/* ---------- Header ---------- */
.site-header{
  background:var(--blanco);
  border-bottom:1px solid var(--borde);
  position:sticky; top:0; z-index:50;
}
.site-header .inner{
  display:flex; align-items:center; justify-content:space-between;
  padding:14px 0; gap:24px;
}
.brand{display:flex; align-items:center; gap:10px;}
.brand img{height:42px; width:auto;}
.brand .brand-text{font-family:var(--font-display); font-weight:800; font-size:24px; color:var(--azul-acero); letter-spacing:.5px;}
.brand .brand-text span{color:var(--naranja);}

.main-nav{display:flex; gap:6px; align-items:center;}
.main-nav a{
  padding:10px 14px; border-radius:100px; font-weight:600; font-size:14.5px;
  color:var(--texto); transition:background .15s, color .15s;
}
.main-nav a:hover{background:var(--azul-acero-100); color:var(--azul-acero);}

.header-actions{display:flex; align-items:center; gap:10px;}
.icon-btn{
  position:relative; width:44px; height:44px; border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  background:var(--gris-claro); border:none; color:var(--azul-acero);
  transition:background .15s;
}
.icon-btn:hover{background:var(--azul-acero-100);}
.cart-badge{
  position:absolute; top:-2px; right:-2px; background:var(--naranja); color:#fff;
  font-size:11px; font-weight:700; min-width:18px; height:18px; border-radius:9px;
  display:flex; align-items:center; justify-content:center; padding:0 4px;
}

/* ---------- Botones ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding:13px 26px; border-radius:100px; font-weight:700; font-size:14.5px;
  border:none; transition:transform .12s ease, box-shadow .12s ease, background .15s;
  box-shadow:var(--elev-1);
}
.btn:active{transform:scale(.97);}
.btn-primary{background:var(--naranja); color:#fff;}
.btn-primary:hover{background:var(--naranja-700); box-shadow:var(--elev-2);}
.btn-outline{background:transparent; color:var(--azul-acero); border:2px solid var(--azul-acero); box-shadow:none; padding:11px 24px;}
.btn-outline:hover{background:var(--azul-acero); color:#fff;}
.btn-outline-light{background:transparent; color:#fff; border:2px solid rgba(255,255,255,.7); box-shadow:none; padding:11px 24px;}
.btn-outline-light:hover{background:#fff; color:var(--azul-acero);}
.btn-block{width:100%;}
.btn-sm{padding:9px 16px; font-size:13px;}
.btn-ghost{background:var(--gris-claro); color:var(--azul-acero); box-shadow:none;}
.btn-danger{background:#C63B3B; color:#fff;}

/* ---------- Hero ---------- */
.hero{
  background:linear-gradient(120deg, var(--azul-acero) 0%, var(--azul-acero-700) 60%, #274A72 100%);
  color:#fff; padding:88px 0 96px; position:relative; overflow:hidden;
}
.hero::after{
  content:""; position:absolute; right:-120px; top:-120px; width:480px; height:480px;
  background:radial-gradient(circle, rgba(255,106,40,.28), transparent 70%);
}
.hero .container{position:relative; z-index:1;}
.hero-tag{display:inline-block; background:rgba(255,255,255,.12); border:1px solid rgba(255,255,255,.25); padding:6px 16px; border-radius:100px; font-size:13px; font-weight:600; margin-bottom:18px;}
.hero h1{color:#fff; font-size:clamp(34px,5vw,58px); max-width:760px;}
.hero p{color:#CFE0EF; font-size:18px; max-width:560px; margin-bottom:32px;}
.hero-actions{display:flex; gap:14px; flex-wrap:wrap;}

/* ---------- Franjas de categoría ---------- */
.cat-strip{margin-top:-46px; position:relative; z-index:2;}
.cat-grid{display:grid; grid-template-columns:repeat(auto-fit,minmax(210px,1fr)); gap:16px;}
.cat-card{
  background:#fff; border-radius:var(--radius-m); box-shadow:var(--elev-2);
  padding:22px; display:flex; flex-direction:column; gap:10px; transition:transform .18s, box-shadow .18s;
  border:1px solid var(--borde);
}
.cat-card:hover{transform:translateY(-4px); box-shadow:var(--elev-3);}
.cat-card .cat-icon{
  width:48px; height:48px; border-radius:12px; background:var(--azul-acero-100);
  display:flex; align-items:center; justify-content:center; color:var(--azul-acero); font-size:22px;
}
.cat-card h3{font-size:19px; margin:0;}
.cat-card p{color:var(--texto-suave); font-size:13.5px; margin:0;}

/* ---------- Secciones ---------- */
.section{padding:64px 0;}
.section-head{display:flex; align-items:flex-end; justify-content:space-between; margin-bottom:30px; flex-wrap:wrap; gap:16px;}
.section-head h2{font-size:clamp(26px,3.2vw,38px); margin:0;}
.section-alt{background:var(--gris-claro);}

/* ---------- Grilla de productos ---------- */
.product-grid{display:grid; grid-template-columns:repeat(auto-fill,minmax(240px,1fr)); gap:22px;}
.product-card{
  background:#fff; border:1px solid var(--borde); border-radius:var(--radius-m);
  overflow:hidden; display:flex; flex-direction:column; transition:box-shadow .18s, transform .18s;
  position:relative;
}
.product-card:hover{box-shadow:var(--elev-3); transform:translateY(-3px);}
.product-thumb{
  aspect-ratio:1/1; background:var(--gris-claro); display:flex; align-items:center; justify-content:center;
  overflow:hidden; position:relative;
}
.product-thumb img{width:100%; height:100%; object-fit:cover;}
.badge{
  position:absolute; top:12px; left:12px; padding:5px 12px; border-radius:100px;
  font-size:11.5px; font-weight:700; letter-spacing:.4px; text-transform:uppercase;
}
.badge-oferta{background:var(--verde-oferta); color:#fff;}
.badge-agotado{background:#8A8F98; color:#fff;}
.badge-mayorista{background:var(--naranja); color:#fff;}
.product-body{padding:16px 16px 18px; display:flex; flex-direction:column; gap:6px; flex:1;}
.product-cat{font-size:11.5px; font-weight:700; letter-spacing:1px; text-transform:uppercase; color:var(--gris-aluminio);}
.product-name{font-family:var(--font-body); font-weight:600; font-size:15px; color:var(--texto); line-height:1.3;}
.product-price{margin-top:auto; display:flex; align-items:baseline; gap:8px;}
.price-now{font-family:var(--font-display); font-weight:700; font-size:22px; color:var(--azul-acero);}
.price-old{font-size:14px; color:var(--gris-aluminio); text-decoration:line-through;}
.product-actions{display:flex; gap:8px; margin-top:10px;}

/* ---------- Detalle de producto ---------- */
.pdp{display:grid; grid-template-columns:1.05fr 1fr; gap:52px; align-items:flex-start;}
@media(max-width:860px){.pdp{grid-template-columns:1fr;}}
.pdp-gallery-main{border-radius:var(--radius-l); overflow:hidden; background:var(--gris-claro); aspect-ratio:1/1;}
.pdp-gallery-main img{width:100%; height:100%; object-fit:cover;}
.pdp-thumbs{display:flex; gap:10px; margin-top:12px; flex-wrap:wrap;}
.pdp-thumbs img{width:72px; height:72px; object-fit:cover; border-radius:10px; border:2px solid var(--borde); cursor:pointer;}
.pdp-thumbs img.active{border-color:var(--naranja);}
.pdp-info .eyebrow{margin-bottom:8px;}
.pdp-info h1{font-size:clamp(26px,3vw,36px);}
.pdp-sku{color:var(--texto-suave); font-size:13px; margin-bottom:18px;}
.pdp-price{display:flex; align-items:baseline; gap:12px; margin:18px 0;}
.pdp-price .price-now{font-size:34px;}
.pdp-desc{color:var(--texto-suave); line-height:1.7; margin-bottom:22px;}
.qty-box{display:flex; align-items:center; border:1px solid var(--borde); border-radius:100px; overflow:hidden; width:fit-content;}
.qty-box button{width:40px; height:40px; background:var(--gris-claro); border:none; font-size:18px; font-weight:700; color:var(--azul-acero);}
.qty-box input{width:52px; text-align:center; border:none; font-weight:700; font-size:15px;}
.pdp-actions{display:flex; gap:12px; align-items:center; margin:22px 0; flex-wrap:wrap;}
.wholesale-box{
  background:var(--azul-acero-100); border:1px dashed var(--azul-acero); border-radius:var(--radius-m);
  padding:18px 20px; margin:22px 0;
}
.wholesale-box h4{margin:0 0 6px; font-size:16px; color:var(--azul-acero);}
.wholesale-box p{margin:0 0 12px; font-size:13.5px; color:var(--texto-suave);}
.specs-table{width:100%; border-collapse:collapse; margin-top:8px;}
.specs-table tr:nth-child(odd){background:var(--gris-claro);}
.specs-table td{padding:10px 14px; font-size:14px;}
.specs-table td:first-child{font-weight:600; width:40%; color:var(--azul-acero);}
.pdf-link{
  display:inline-flex; align-items:center; gap:8px; margin-top:16px; padding:12px 18px;
  border:1px solid var(--borde); border-radius:var(--radius-s); font-weight:600; font-size:14px; color:var(--azul-acero);
}
.pdf-link:hover{border-color:var(--azul-acero);}

/* ---------- Ofertas ---------- */
.offer-banner{background:var(--verde-oferta); color:#fff; text-align:center; padding:10px; font-weight:700; font-size:13.5px; letter-spacing:.4px;}

/* ---------- Formularios ---------- */
.form-field{margin-bottom:18px;}
.form-field label{display:block; font-weight:600; font-size:13.5px; margin-bottom:6px; color:var(--azul-acero);}
.form-field input, .form-field select, .form-field textarea{
  width:100%; padding:12px 14px; border:1px solid var(--borde); border-radius:var(--radius-s);
  font-family:inherit; font-size:14.5px; background:#fff; transition:border-color .15s;
}
.form-field input:focus, .form-field select:focus, .form-field textarea:focus{
  outline:none; border-color:var(--azul-acero); box-shadow:0 0 0 3px var(--azul-acero-100);
}
.form-row{display:grid; grid-template-columns:1fr 1fr; gap:16px;}
@media(max-width:640px){.form-row{grid-template-columns:1fr;}}
.card-panel{background:#fff; border:1px solid var(--borde); border-radius:var(--radius-m); padding:26px; box-shadow:var(--elev-1);}

/* ---------- Carrito / checkout ---------- */
.cart-row{display:flex; align-items:center; gap:16px; padding:16px 0; border-bottom:1px solid var(--borde);}
.cart-row img{width:74px; height:74px; object-fit:cover; border-radius:10px; background:var(--gris-claro);}
.cart-row .grow{flex:1;}
.cart-row .name{font-weight:600; font-size:14.5px;}
.cart-summary{background:var(--gris-claro); border-radius:var(--radius-m); padding:24px;}
.summary-row{display:flex; justify-content:space-between; padding:8px 0; font-size:14.5px;}
.summary-row.total{font-weight:800; font-size:19px; color:var(--azul-acero); border-top:1px solid var(--borde); margin-top:8px; padding-top:14px;}
.pay-option{
  display:flex; align-items:center; gap:12px; border:1px solid var(--borde); border-radius:var(--radius-s);
  padding:14px 16px; margin-bottom:10px; cursor:pointer;
}
.pay-option input{accent-color:var(--naranja);}
.pay-option.selected{border-color:var(--azul-acero); background:var(--azul-acero-100);}

/* ---------- Footer ---------- */
.site-footer{background:var(--azul-acero); color:#CFE0EF; padding:56px 0 22px; margin-top:60px;}
.footer-grid{display:grid; grid-template-columns:2fr 1fr 1fr 1.2fr; gap:36px;}
@media(max-width:800px){.footer-grid{grid-template-columns:1fr 1fr;}}
.site-footer h4{color:#fff; font-size:15px; margin-bottom:14px;}
.site-footer a{color:#B9CBDD; font-size:14px; line-height:2.1;}
.site-footer a:hover{color:#fff;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12); margin-top:40px; padding-top:20px; font-size:12.5px; color:#8FA6BC; display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px;}

/* ---------- WhatsApp flotante ---------- */
.wa-float{
  position:fixed; bottom:26px; right:26px; z-index:80;
  background:#25D366; color:#fff; width:62px; height:62px; border-radius:50%;
  display:flex; align-items:center; justify-content:center; box-shadow:0 8px 24px rgba(37,211,102,.45);
  animation:wa-pulse 2.4s infinite;
}
.wa-float svg{width:30px; height:30px;}
@keyframes wa-pulse{
  0%{box-shadow:0 8px 24px rgba(37,211,102,.45);}
  50%{box-shadow:0 8px 24px rgba(37,211,102,.15), 0 0 0 10px rgba(37,211,102,.12);}
  100%{box-shadow:0 8px 24px rgba(37,211,102,.45);}
}

/* ---------- Alertas ---------- */
.alert{padding:14px 18px; border-radius:var(--radius-s); font-size:14px; margin-bottom:18px; font-weight:500;}
.alert-success{background:#E4F5EA; color:var(--verde-oferta);}
.alert-error{background:#FCE7E7; color:#B23434;}
.alert-info{background:var(--azul-acero-100); color:var(--azul-acero);}

/* ---------- Utilidades ---------- */
.mt-0{margin-top:0;} .mb-0{margin-bottom:0;}
.text-center{text-align:center;}
.empty-state{text-align:center; padding:70px 20px; color:var(--texto-suave);}
.empty-state svg{margin-bottom:16px; color:var(--gris-aluminio);}

/* ---------- Menú móvil ---------- */
.mobile-toggle{display:none; background:none; border:none; font-size:26px; color:var(--azul-acero);}
@media(max-width:900px){
  .main-nav{display:none;}
  .mobile-toggle{display:block;}
  .main-nav.open{
    display:flex; flex-direction:column; position:absolute; top:100%; left:0; right:0;
    background:#fff; padding:12px; border-bottom:1px solid var(--borde); box-shadow:var(--elev-2);
  }
}