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

:root{
  /* Estos valores son un respaldo; script.js los sobreescribe
     automáticamente con los colores definidos en config.js */
  --ink:#1F3A4C;
  --ink-soft:#4C6478;
  --header-bg:#1F3A4C;
  --header-text:#FBF7EF;
  --paper:#FBF7EF;
  --paper-line:#E7DFCB;
  --amber:#D9A441;
  --amber-dark:#B9822B;
  --stamp:#3B6E52;
  --stamp-soft:#E7EFE9;
  --white:#FFFFFF;
  --radius:10px;
  --shadow:0 2px 10px rgba(31,58,76,.08);
  --font-display:'Oswald',sans-serif;
  --font-body:'Inter',sans-serif;
  --font-mono:'JetBrains Mono',monospace;
}

*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--paper);
  background-image:
    radial-gradient(circle, rgba(31,58,76,.05) 1px, transparent 1px);
  background-size:14px 14px;
  color:var(--ink);
  font-family:var(--font-body);
  line-height:1.45;
  padding:20px 14px 60px;
}

.sheet{
  max-width:820px;
  margin:0 auto;
  background:var(--white);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  overflow:hidden;
  border:1px solid var(--paper-line);
}

/* ---------- Encabezado ---------- */
.header{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:22px 26px;
  background:var(--header-bg);
  color:var(--header-text);
}
.header-brand{display:flex;align-items:center;gap:14px;}
.header-brand img{
  height:var(--logo-size, 46px);width:auto;border-radius:6px;background:var(--white);padding:4px;
}
.header-title{
  font-family:var(--font-display);
  font-size:22px;
  letter-spacing:.5px;
  text-transform:uppercase;
  margin:0;
  color:var(--header-text);
}
.header-sub{
  font-size:12px;
  color:var(--header-text);
  opacity:.72;
  margin:2px 0 0;
  font-family:var(--font-mono);
}
.stamp{
  font-family:var(--font-display);
  font-size:12px;
  letter-spacing:2px;
  text-transform:uppercase;
  border:2px solid var(--amber);
  color:var(--amber);
  padding:6px 12px;
  border-radius:6px;
  transform:rotate(-4deg);
  white-space:nowrap;
}

/* ---------- Datos del cliente ---------- */
.client-box{
  padding:20px 26px 10px;
}
.client-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:14px;
}
.field{display:flex;flex-direction:column;gap:5px;}
.field.full{grid-column:1 / -1;}
.field label{
  font-size:11px;
  text-transform:uppercase;
  letter-spacing:.6px;
  color:var(--ink-soft);
  font-weight:600;
}
.field input,.field textarea{
  font-family:var(--font-body);
  font-size:15px;
  padding:10px 12px;
  border:1.5px solid var(--paper-line);
  border-radius:7px;
  background:var(--white);
  color:var(--ink);
  outline:none;
  transition:border-color .15s;
}
.field input:focus,.field textarea:focus{
  border-color:var(--amber);
}
.field textarea{resize:vertical;min-height:44px;font-family:var(--font-body);}

/* ---------- Borde perforado (firma visual) ---------- */
.perforation{
  position:relative;
  height:0;
  margin:22px 0 0;
  border-top:2px dashed var(--paper-line);
}
.perforation::before,.perforation::after{
  content:"";
  position:absolute;
  top:-9px;
  width:18px;height:18px;
  border-radius:50%;
  background:var(--paper);
  border:1px solid var(--paper-line);
}
.perforation::before{left:-9px;}
.perforation::after{right:-9px;}

/* ---------- Pestañas de categorías ---------- */
.cat-tabs{
  display:flex;
  gap:6px;
  overflow-x:auto;
  padding:2px 26px 14px;
  -webkit-overflow-scrolling:touch;
  scrollbar-width:thin;
}
.cat-tabs::-webkit-scrollbar{height:5px;}
.cat-tabs::-webkit-scrollbar-thumb{background:var(--paper-line);border-radius:4px;}
.cat-tab{
  flex:0 0 auto;
  font-family:var(--font-display);
  font-size:12.5px;
  letter-spacing:.4px;
  text-transform:uppercase;
  padding:9px 16px;
  border-radius:20px;
  border:1.5px solid var(--paper-line);
  background:var(--cat-inactive-bg);
  color:var(--cat-inactive-text);
  cursor:pointer;
  white-space:nowrap;
  transition:all .15s;
}
.cat-tab:hover{border-color:var(--cat-active-bg);}
.cat-tab.active{
  background:var(--cat-active-bg);
  border-color:var(--cat-active-bg);
  color:var(--cat-active-text);
}

.seleccion-nota{
  padding:0 26px 4px;
  font-size:12px;
  color:var(--ink-soft);
}

/* ---------- Botón hacia el catálogo completo ---------- */
.btn-catalogo{
  display:inline-flex;
  align-items:center;
  gap:7px;
  margin:0 26px 16px;
  padding:10px 16px;
  border:1.5px solid var(--ink);
  border-radius:8px;
  color:var(--ink);
  font-family:var(--font-display);
  font-size:12.5px;
  text-transform:uppercase;
  letter-spacing:.5px;
  text-decoration:none;
  transition:all .15s;
}
.btn-catalogo:hover{background:var(--ink);color:var(--white);}
.btn-catalogo svg{width:14px;height:14px;flex:0 0 auto;}

/* ---------- Aviso de "bajó de precio" ---------- */
.oferta-badge{
  display:flex;
  align-items:center;
  gap:3px;
  color:var(--descuento, #C01B21);
  font-size:10px;
  font-weight:700;
  margin-top:4px;
  white-space:nowrap;
}
.oferta-badge svg{width:10px;height:10px;flex:0 0 auto;}

/* ---------- Burbuja de WhatsApp ---------- */
.whatsapp-bubble{
  position:fixed;
  right:18px;
  bottom:18px;
  width:56px;
  height:56px;
  border-radius:50%;
  background:#25D366;
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow:0 4px 14px rgba(0,0,0,.25);
  z-index:60;
  transition:transform .15s;
  text-decoration:none;
}
.whatsapp-bubble:hover{transform:scale(1.07);}
.whatsapp-bubble svg{width:29px;height:29px;fill:#fff;}

/* ---------- Tabla de productos ---------- */
.products{padding:18px 26px 6px;}
.products h2{
  font-family:var(--font-display);
  font-size:15px;
  text-transform:uppercase;
  letter-spacing:1px;
  color:var(--ink);
  margin:0 0 12px;
}
.products-toolbar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:10px;
  margin:0 0 12px;
}
.products-toolbar h2{margin:0;}
.order-select{
  font-family:var(--font-body);
  font-size:12.5px;
  padding:7px 10px;
  border:1.5px solid var(--paper-line);
  border-radius:7px;
  background:var(--white);
  color:var(--ink-soft);
  outline:none;
  cursor:pointer;
}
.order-select:focus{border-color:var(--amber);}
table.catalog{
  width:100%;
  border-collapse:collapse;
}
table.catalog thead th{
  text-align:left;
  font-size:10.5px;
  text-transform:uppercase;
  letter-spacing:.5px;
  color:var(--ink-soft);
  padding:8px 8px;
  border-bottom:2px solid var(--ink);
}
table.catalog tbody tr{
  border-bottom:1px solid var(--paper-line);
}
table.catalog tbody tr:hover{background:#FAF6EC;}
table.catalog td{
  padding:9px 8px;
  vertical-align:middle;
  font-size:14px;
}
.col-img img{
  width:var(--img-w, 62px);height:var(--img-h, 44px);
  object-fit:contain;
  border-radius:6px;
  border:1px solid var(--paper-line);
  background:var(--white);
  display:block;
}
.col-img .no-img{
  width:var(--img-w, 62px);height:var(--img-h, 44px);
  border-radius:6px;
  background:var(--stamp-soft);
  color:var(--stamp);
  display:flex;align-items:center;justify-content:center;
  font-size:9px;font-family:var(--font-mono);text-align:center;
}
.col-codigo{font-family:var(--font-mono);font-size:12.5px;color:var(--ink-soft);white-space:nowrap;}
.col-precio,.col-total{font-family:var(--font-mono);white-space:nowrap;}
.col-cant input{
  width:64px;
  padding:8px 6px;
  text-align:center;
  border:1.5px solid var(--paper-line);
  border-radius:6px;
  font-family:var(--font-mono);
  font-size:14px;
  -moz-appearance:textfield;
}
.col-cant input:focus{outline:none;border-color:var(--amber);}
.col-cant input::-webkit-outer-spin-button,
.col-cant input::-webkit-inner-spin-button{
  -webkit-appearance:none;margin:0;
}
.row-total{font-weight:600;color:var(--stamp);}

/* ---------- Total y acción ---------- */
.totalbar{
  position:sticky;
  bottom:0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  padding:16px 26px;
  background:var(--white);
  border-top:2px solid var(--ink);
  margin-top:14px;
}
.totalbar .label{
  font-family:var(--font-display);
  font-size:13px;
  text-transform:uppercase;
  letter-spacing:.6px;
  color:var(--ink-soft);
}
.totalbar .amount{
  font-family:var(--font-mono);
  font-size:26px;
  font-weight:600;
  color:var(--stamp);
}
.btn-generate{
  font-family:var(--font-display);
  font-size:14px;
  letter-spacing:.6px;
  text-transform:uppercase;
  background:var(--amber);
  color:var(--ink);
  border:none;
  padding:13px 20px;
  border-radius:8px;
  cursor:pointer;
  box-shadow:0 2px 0 var(--amber-dark);
  transition:transform .1s;
  white-space:nowrap;
}
.btn-generate:hover{filter:brightness(1.04);}
.btn-generate:active{transform:translateY(2px);box-shadow:none;}

.footnote{
  text-align:center;
  font-size:11.5px;
  color:var(--ink-soft);
  padding:14px 20px 4px;
}

.toast{
  position:fixed;
  left:50%;
  bottom:18px;
  transform:translateX(-50%) translateY(120%);
  background:var(--ink);
  color:var(--paper);
  padding:11px 18px;
  border-radius:8px;
  font-size:13.5px;
  font-family:var(--font-body);
  box-shadow:var(--shadow);
  transition:transform .25s ease;
  z-index:50;
}
.toast.show{transform:translateX(-50%) translateY(0);}

/* ---------- Responsive ---------- */
@media (max-width:640px){
  body{padding:10px 6px 50px;}
  .header{
    padding:14px 14px;
    flex-direction:column;
    align-items:stretch;
    gap:10px;
  }
  .header-brand{
    width:100%;
    flex-direction:column;
    align-items:flex-start;
    gap:8px;
  }
  .header-brand img{
    width:100%;
    height:auto;
    max-height:120px;
    object-fit:contain;
  }
  .stamp{align-self:flex-end;}
  .header-title{font-size:17px;}
  .client-box{padding:16px 16px 6px;}
  .client-grid{grid-template-columns:1fr;}
  .products{padding:14px 10px 4px;}
  table.catalog thead{display:none;}
  table.catalog, table.catalog tbody{display:block;width:100%;}
  table.catalog tr{
    display:grid;
    grid-template-columns:var(--img-w, 62px) 1fr 1fr;
    column-gap:12px;
    row-gap:6px;
    grid-template-areas:
      "img desc desc"
      "img codigo codigo"
      "img precio cant"
      "img total total";
    padding:13px 6px;
    border-bottom:1px solid var(--paper-line);
  }
  table.catalog td{padding:0;font-size:14px;}
  .col-img{grid-area:img;}
  .col-desc{grid-area:desc;font-weight:600;}
  .col-codigo{grid-area:codigo;font-size:11.5px;}
  .col-precio{grid-area:precio;}
  .col-cant{grid-area:cant;}
  .col-total{grid-area:total;font-weight:600;}
  .col-precio::before{content:"Precio ";color:var(--ink-soft);font-family:var(--font-body);font-size:10.5px;}
  .col-total::before{content:"Total ";color:var(--ink-soft);font-family:var(--font-body);font-size:10.5px;}
  .totalbar{padding:14px 16px;flex-wrap:wrap;}
  .totalbar .amount{font-size:22px;}
  .whatsapp-bubble{right:14px;bottom:86px;width:50px;height:50px;}
  .whatsapp-bubble svg{width:26px;height:26px;}
}