/* =========================================================
   DISEÑO: "Hoja de cálculo" — estética Excel aplicada a una
   tienda de planillas digitales.
   Paleta: verde Excel (marca), gris de cuadrícula, blanco "celda",
   acento ámbar para ofertas/CTA secundario.
   Tipografía: Space Grotesk (display, geométrica/técnica) + Inter
   (texto) + una fuente monoespaciada para "SKU"/celdas.
   Signature: fondo de cuadrícula tipo hoja de cálculo en el hero
   y bordes de "celda" en las tarjetas de producto.
   ========================================================= */

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

:root{
  --excel-verde-900:#0F5C33;
  --excel-verde:#1B7A43;
  --excel-verde-700:#146238;
  --excel-verde-100:#E4F3EA;
  --celda-borde:#D6DEDA;
  --gris-claro:#F6F9F7;
  --blanco:#FFFFFF;
  --ambar:#F2A93B;
  --ambar-700:#DB921F;
  --texto:#1B241E;
  --texto-suave:#5C6B62;
  --rojo:#C63B3B;
  --radius-s:6px;
  --radius-m:10px;
  --radius-l:16px;
  --elev-1:0 1px 2px rgba(15,92,51,.08), 0 1px 3px rgba(15,92,51,.06);
  --elev-2:0 4px 10px rgba(15,92,51,.10), 0 2px 4px rgba(15,92,51,.06);
  --elev-3:0 14px 30px rgba(15,92,51,.16);
  --font-display:'Space Grotesk', sans-serif;
  --font-body:'Inter', sans-serif;
  --font-mono:'JetBrains Mono', monospace;
}

*{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; line-height:1.1; margin:0 0 .5em; color:var(--excel-verde-900);}
.container{max-width:1240px; margin:0 auto; padding:0 24px;}
.eyebrow{font-family:var(--font-mono); font-weight:600; letter-spacing:1px; text-transform:uppercase; color:var(--ambar-700); font-size:12.5px;}
.mono{font-family:var(--font-mono);}

/* ---------- Barra superior ---------- */
.topbar{background:var(--excel-verde-900); color:#CFEBDA; 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(--celda-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:40px; width:auto;}
.brand .brand-text{font-family:var(--font-display); font-weight:800; font-size:22px; color:var(--excel-verde-900);}
.brand .brand-text span{color:var(--ambar-700);}
.main-nav{display:flex; gap:6px; align-items:center;}
.main-nav a{padding:10px 14px; border-radius:8px; font-weight:600; font-size:14.5px; color:var(--texto); transition:background .15s,color .15s;}
.main-nav a:hover{background:var(--excel-verde-100); color:var(--excel-verde-900);}
.header-actions{display:flex; align-items:center; gap:10px;}
.icon-btn{position:relative; width:44px; height:44px; border-radius:8px; display:flex; align-items:center; justify-content:center; background:var(--gris-claro); border:1px solid var(--celda-borde); color:var(--excel-verde-900); transition:background .15s;}
.icon-btn:hover{background:var(--excel-verde-100);}
.cart-badge{position:absolute; top:-6px; right:-6px; background:var(--ambar); color:#3A2600; font-size:11px; font-weight:800; 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:8px; font-weight:700; font-size:14.5px; border:none; transition:transform .12s, box-shadow .12s, background .15s; box-shadow:var(--elev-1);}
.btn:active{transform:scale(.97);}
.btn-primary{background:var(--excel-verde); color:#fff;}
.btn-primary:hover{background:var(--excel-verde-700); box-shadow:var(--elev-2);}
.btn-outline{background:transparent; color:var(--excel-verde-900); border:2px solid var(--excel-verde-900); box-shadow:none; padding:11px 24px;}
.btn-outline:hover{background:var(--excel-verde-900); 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(--excel-verde-900);}
.btn-block{width:100%;}
.btn-sm{padding:9px 16px; font-size:13px;}
.btn-ghost{background:var(--gris-claro); color:var(--excel-verde-900); box-shadow:none; border:1px solid var(--celda-borde);}
.btn-amber{background:var(--ambar); color:#3A2600;}
.btn-amber:hover{background:var(--ambar-700); color:#fff;}
.btn-danger{background:var(--rojo); color:#fff;}

/* ---------- Hero con cuadrícula tipo hoja de cálculo (signature) ---------- */
.hero{
  background:
    linear-gradient(120deg, var(--excel-verde-900) 0%, var(--excel-verde-700) 55%, #1E8C50 100%);
  color:#fff; padding:88px 0 96px; position:relative; overflow:hidden;
}
.hero::before{
  content:""; position:absolute; inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.07) 1px, transparent 1px);
  background-size:44px 44px;
  mask-image:linear-gradient(180deg, transparent, #000 25%, #000 75%, transparent);
}
.hero .container{position:relative; z-index:1;}
.hero-tag{display:inline-flex; align-items:center; gap:8px; background:rgba(255,255,255,.12); border:1px solid rgba(255,255,255,.25); padding:6px 16px; border-radius:8px; font-size:13px; font-weight:600; margin-bottom:18px; font-family:var(--font-mono);}
.hero h1{color:#fff; font-size:clamp(32px,4.6vw,54px); max-width:760px;}
.hero p{color:#D9F0E4; font-size:18px; max-width:560px; margin-bottom:32px;}
.hero-actions{display:flex; gap:14px; flex-wrap:wrap;}

/* Mini "celda de formula" flotante decorativa */
.formula-chip{
  display:inline-flex; align-items:center; gap:8px; background:rgba(255,255,255,.95); color:var(--excel-verde-900);
  font-family:var(--font-mono); font-size:13px; font-weight:600; padding:8px 14px; border-radius:8px;
  box-shadow:var(--elev-2); margin-top:26px;
}
.formula-chip .cell-ref{background:var(--excel-verde-100); padding:2px 7px; border-radius:4px; color:var(--excel-verde-900);}

/* ---------- 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(24px,3vw,36px); margin:0;}
.section-alt{background:var(--gris-claro);}

/* ---------- Franja de categorías ---------- */
.cat-strip{margin-top:-46px; position:relative; z-index:2;}
.cat-grid{display:grid; grid-template-columns:repeat(auto-fit,minmax(220px,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(--celda-borde); border-top:3px solid var(--excel-verde);}
.cat-card:hover{transform:translateY(-4px); box-shadow:var(--elev-3);}
.cat-card .cat-icon{width:44px; height:44px; border-radius:8px; background:var(--excel-verde-100); display:flex; align-items:center; justify-content:center; color:var(--excel-verde-900); font-size:20px; font-family:var(--font-mono); font-weight:700;}
.cat-card h3{font-size:18px; margin:0;}
.cat-card p{color:var(--texto-suave); font-size:13.5px; margin:0;}

/* ---------- Grilla de productos (celdas) ---------- */
.product-grid{display:grid; grid-template-columns:repeat(auto-fill,minmax(250px,1fr)); gap:20px;}
.product-card{background:#fff; border:1px solid var(--celda-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); border-color:var(--excel-verde);}
.product-thumb{aspect-ratio:4/3; background:var(--excel-verde-100); display:flex; align-items:center; justify-content:center; overflow:hidden; position:relative;}
.product-thumb img{width:100%; height:100%; object-fit:cover;}
.file-icon{font-family:var(--font-mono); font-weight:800; font-size:15px; color:var(--excel-verde-900); display:flex; flex-direction:column; align-items:center; gap:8px;}
.file-icon .ext{background:var(--excel-verde); color:#fff; padding:4px 10px; border-radius:5px; font-size:12px; letter-spacing:.5px;}
.badge{position:absolute; top:12px; left:12px; padding:5px 12px; border-radius:6px; font-size:11.5px; font-weight:700; letter-spacing:.4px; text-transform:uppercase;}
.badge-oferta{background:var(--ambar); color:#3A2600;}
.badge-destacado{background:var(--excel-verde-900); color:#fff;}
.product-body{padding:16px 16px 18px; display:flex; flex-direction:column; gap:6px; flex:1;}
.product-cat{font-family:var(--font-mono); font-size:11px; font-weight:700; letter-spacing:.5px; text-transform:uppercase; color:var(--texto-suave);}
.product-name{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:21px; color:var(--excel-verde-900);}
.price-old{font-size:13.5px; color:var(--texto-suave); text-decoration:line-through;}
.product-actions{display:flex; gap:8px; margin-top:10px;}

/* ---------- Detalle de producto ---------- */
.pdp{display:grid; grid-template-columns:1fr 1.05fr; 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(--excel-verde-100); aspect-ratio:4/3; display:flex; align-items:center; justify-content:center;}
.pdp-gallery-main img{width:100%; height:100%; object-fit:cover;}
.pdp-info .eyebrow{margin-bottom:8px;}
.pdp-info h1{font-size:clamp(24px,3vw,34px);}
.pdp-sku{color:var(--texto-suave); font-size:13px; margin-bottom:18px; font-family:var(--font-mono);}
.pdp-price{display:flex; align-items:baseline; gap:12px; margin:18px 0;}
.pdp-price .price-now{font-size:32px;}
.pdp-desc{color:var(--texto-suave); line-height:1.7; margin-bottom:22px;}
.pdp-actions{display:flex; gap:12px; align-items:center; margin:22px 0; flex-wrap:wrap;}
.digital-box{background:var(--excel-verde-100); border:1px dashed var(--excel-verde); border-radius:var(--radius-m); padding:16px 20px; margin:22px 0; display:flex; gap:12px; align-items:flex-start;}
.digital-box .ic{font-size:22px;}
.digital-box h4{margin:0 0 4px; font-size:15px; color:var(--excel-verde-900);}
.digital-box p{margin:0; 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; border:1px solid var(--celda-borde);}
.specs-table td:first-child{font-weight:600; width:42%; color:var(--excel-verde-900); font-family:var(--font-mono); font-size:13px;}

/* ---------- Formularios ---------- */
.form-field{margin-bottom:18px;}
.form-field label{display:block; font-weight:600; font-size:13.5px; margin-bottom:6px; color:var(--excel-verde-900);}
.form-field input, .form-field select, .form-field textarea{width:100%; padding:12px 14px; border:1px solid var(--celda-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(--excel-verde); box-shadow:0 0 0 3px var(--excel-verde-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(--celda-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(--celda-borde);}
.cart-row .thumb-mini{width:56px; height:56px; border-radius:8px; background:var(--excel-verde-100); display:flex; align-items:center; justify-content:center; color:var(--excel-verde-900); font-weight:800; font-family:var(--font-mono); font-size:11px;}
.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; border:1px solid var(--celda-borde);}
.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(--excel-verde-900); border-top:1px solid var(--celda-borde); margin-top:8px; padding-top:14px;}
.pay-option{display:flex; align-items:center; gap:12px; border:1px solid var(--celda-borde); border-radius:var(--radius-s); padding:14px 16px; margin-bottom:10px; cursor:pointer;}
.pay-option input{accent-color:var(--excel-verde);}
.pay-option.selected{border-color:var(--excel-verde); background:var(--excel-verde-100);}
.download-btn{display:flex; align-items:center; justify-content:space-between; gap:14px; background:var(--excel-verde-100); border:1px solid var(--excel-verde); border-radius:var(--radius-m); padding:16px 18px; margin-bottom:12px;}
.download-btn .name{font-weight:700; color:var(--excel-verde-900); font-size:14.5px;}

/* ---------- Footer ---------- */
.site-footer{background:var(--excel-verde-900); color:#CFEBDA; 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:#B7DDC6; 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:#8FBFA3; 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:var(--excel-verde-100); color:var(--excel-verde-900);}
.alert-error{background:#FCE7E7; color:#B23434;}
.alert-info{background:#FFF6E7; color:#8A5A00;}

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

.mobile-toggle{display:none; background:none; border:none; font-size:26px; color:var(--excel-verde-900);}
@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(--celda-borde); box-shadow:var(--elev-2);}
}