/* ====================================================================
   JIDOKA · Design tokens
   Paleta: verde tecnológico/ecológico + blanco. Motivo de firma: la
   retícula hexagonal de una célula de panel solar, usada como textura
   y como forma de los contenedores de iconos.
   Tipografía: Space Grotesk (display), Inter (texto), JetBrains Mono
   (códigos, SKUs, cantidades — datos de almacén).
==================================================================== */

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

:root{
  --bg:            #FBFDFB;
  --surface:       #FFFFFF;
  --surface-soft:  #F0F7F3;
  --border:        #DCEBE2;

  --ink:           #0F2419;
  --ink-soft:      #4E6459;
  --ink-faint:     #85978D;

  --primary:       #146C43;
  --primary-dark:  #0B4A2C;
  --primary-light: #1E9259;
  --accent:        #34D399;
  --accent-soft:   #D6F5E7;

  --warning:       #C2760B;
  --warning-soft:  #FBEBD2;
  --danger:        #C0392B;
  --danger-soft:   #FBE1DD;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;

  --shadow-sm: 0 1px 2px rgba(15,36,25,.06);
  --shadow-md: 0 8px 24px rgba(15,36,25,.08);

  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --nav-w: 232px;
  --bottom-nav-h: 64px;
}

*{ box-sizing: border-box; }
html,body{ height:100%; }
body{
  margin:0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}
h1,h2,h3,h4{ font-family: var(--font-display); margin:0; letter-spacing:-.01em; }
p{ margin:0; }
a{ color:inherit; text-decoration:none; }
button{ font-family:inherit; }
code, .mono{ font-family: var(--font-mono); }

/* ---------- Hex-cell signature texture ---------- */
.hex-pattern{
  background-image:
    radial-gradient(circle at 1px 1px, rgba(255,255,255,.16) 1px, transparent 1px);
  background-size: 16px 16px;
}
.hex-icon{
  --s: 44px;
  width: var(--s); height: calc(var(--s) * 1.02);
  display:flex; align-items:center; justify-content:center;
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
  background: var(--accent-soft);
  color: var(--primary-dark);
  flex-shrink:0;
}
.hex-icon.solid{ background: var(--primary); color:#fff; }
.hex-icon.warn{ background: var(--warning-soft); color: var(--warning); }
.hex-icon.danger{ background: var(--danger-soft); color: var(--danger); }

/* ---------- App shell ---------- */
.app-shell{ display:flex; min-height:100vh; }

.sidebar{
  width: var(--nav-w);
  background: linear-gradient(180deg, var(--primary-dark), var(--primary));
  color:#fff;
  display:flex; flex-direction:column;
  padding: 24px 16px;
  position: sticky; top:0; height:100vh;
  flex-shrink:0;
}
.sidebar .brand{
  display:flex; align-items:center; gap:10px;
  padding: 0 8px 24px;
}
.sidebar .brand .hex-icon{ background: rgba(255,255,255,.14); color:#fff; --s:36px; }
.sidebar .brand span{ font-family:var(--font-display); font-weight:700; font-size:1.1rem; letter-spacing:.02em; }
.sidebar nav{ display:flex; flex-direction:column; gap:4px; margin-top:8px; }
.sidebar .nav-link{
  display:flex; align-items:center; gap:12px;
  padding:11px 14px; border-radius: var(--radius-sm);
  color: rgba(255,255,255,.78); font-weight:500; font-size:.92rem;
  transition: background .15s ease, color .15s ease;
}
.sidebar .nav-link svg{ width:19px; height:19px; flex-shrink:0; }
.sidebar .nav-link:hover{ background: rgba(255,255,255,.08); color:#fff; }
.sidebar .nav-link.active{ background: rgba(255,255,255,.16); color:#fff; }
.sidebar .foot{ margin-top:auto; padding:12px 8px 0; font-size:.75rem; color:rgba(255,255,255,.5); }

.main{ flex:1; min-width:0; display:flex; flex-direction:column; }
.topbar{
  display:flex; align-items:center; justify-content:space-between;
  padding: 18px 28px; border-bottom:1px solid var(--border);
  background: var(--surface); position:sticky; top:0; z-index:20;
}
.topbar h1{ font-size:1.25rem; }
.topbar .sub{ color:var(--ink-soft); font-size:.85rem; margin-top:2px; }
.content{ padding: 24px 28px 48px; flex:1; }

/* ---------- Mobile bottom nav ---------- */
.bottom-nav{
  display:none;
  position:fixed; bottom:0; left:0; right:0;
  background: var(--surface);
  border-top:1px solid var(--border);
  padding: 6px 6px calc(6px + env(safe-area-inset-bottom));
  z-index:30;
  box-shadow: 0 -4px 16px rgba(15,36,25,.06);
}
.bottom-nav .row{ display:flex; }
.bottom-nav .nav-link{
  flex:1; display:flex; flex-direction:column; align-items:center; gap:3px;
  padding:8px 2px; border-radius: var(--radius-sm);
  color: var(--ink-faint); font-size:.68rem; font-weight:600;
}
.bottom-nav .nav-link svg{ width:21px; height:21px; }
.bottom-nav .nav-link.active{ color: var(--primary); }
.bottom-nav .nav-link.scan-btn{ color:#fff; }
.bottom-nav .nav-link.scan-btn .hex-icon{ margin-bottom:-2px; }

@media (max-width: 860px){
  .sidebar{ display:none; }
  .bottom-nav{ display:block; }
  .content{ padding: 18px 16px calc(var(--bottom-nav-h) + 28px); }
  .topbar{ padding: 14px 16px; }
}

/* ---------- Cards & stats ---------- */
.grid{ display:grid; gap:16px; }
.grid-stats{ grid-template-columns: repeat(auto-fit, minmax(220px,1fr)); }
.card{
  background: var(--surface); border:1px solid var(--border);
  border-radius: var(--radius-md); padding:18px 20px;
  box-shadow: var(--shadow-sm);
}
.stat-card{ display:flex; gap:14px; align-items:flex-start; }
.stat-card .num{ font-family:var(--font-display); font-size:1.9rem; font-weight:700; line-height:1; }
.stat-card .label{ color:var(--ink-soft); font-size:.83rem; margin-top:6px; }
.stat-card.alert .num{ color: var(--warning); }

.section-title{ display:flex; align-items:center; justify-content:space-between; margin: 28px 0 12px; }
.section-title h2{ font-size:1rem; color:var(--ink-soft); text-transform:uppercase; letter-spacing:.06em; font-weight:600; }

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  border:none; border-radius: var(--radius-sm); cursor:pointer;
  font-weight:600; font-size:.88rem; padding:10px 16px;
  transition: transform .08s ease, background .15s ease, box-shadow .15s ease;
}
.btn:active{ transform: scale(.97); }
.btn-primary{ background: var(--primary); color:#fff; }
.btn-primary:hover{ background: var(--primary-dark); }
.btn-accent{ background: var(--accent); color: var(--primary-dark); }
.btn-outline{ background:transparent; border:1px solid var(--border); color:var(--ink); }
.btn-outline:hover{ background: var(--surface-soft); }
.btn-ghost{ background:transparent; color:var(--ink-soft); }
.btn-danger{ background: var(--danger-soft); color: var(--danger); }
.btn-sm{ padding:6px 10px; font-size:.78rem; }
.btn-icon{ width:38px; height:38px; padding:0; border-radius: var(--radius-sm); }
.btn[disabled]{ opacity:.55; cursor:not-allowed; }

/* ---------- Forms ---------- */
.field{ display:flex; flex-direction:column; gap:6px; margin-bottom:14px; }
.field label{ font-size:.82rem; font-weight:600; color: var(--ink-soft); }
.field .hint{ font-size:.75rem; color:var(--ink-faint); }
input, select, textarea{
  font-family: var(--font-body); font-size:.92rem;
  padding:10px 12px; border-radius: var(--radius-sm);
  border:1px solid var(--border); background:#fff; color:var(--ink);
  width:100%;
}
input:focus, select:focus, textarea:focus{
  outline:none; border-color: var(--primary-light);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
textarea{ resize:vertical; min-height:70px; }
.input-scan{ display:flex; gap:8px; }
.input-scan input{ flex:1; }
.form-grid{ display:grid; grid-template-columns:1fr 1fr; gap:0 16px; }
@media (max-width:600px){ .form-grid{ grid-template-columns:1fr; } }

/* ---------- Table ---------- */
.table-wrap{ overflow-x:auto; border:1px solid var(--border); border-radius: var(--radius-md); background:var(--surface); }
table{ width:100%; border-collapse:collapse; font-size:.87rem; min-width:640px; }
thead th{
  text-align:left; padding:12px 16px; background: var(--surface-soft);
  color: var(--ink-soft); font-weight:600; font-size:.74rem;
  text-transform:uppercase; letter-spacing:.04em;
  border-bottom:1px solid var(--border); white-space:nowrap;
}
tbody td{ padding:12px 16px; border-bottom:1px solid var(--border); vertical-align:middle; }
tbody tr:last-child td{ border-bottom:none; }
tbody tr:hover{ background: var(--surface-soft); }
.cell-code{ font-family:var(--font-mono); font-size:.82rem; color:var(--ink-soft); }

.badge{
  display:inline-flex; align-items:center; gap:5px;
  padding:3px 10px; border-radius:99px; font-size:.75rem; font-weight:600;
}
.badge-ok{ background: var(--accent-soft); color: var(--primary-dark); }
.badge-low{ background: var(--warning-soft); color: var(--warning); }
.badge-out{ background: var(--danger-soft); color: var(--danger); }
.badge-in{ background: var(--accent-soft); color: var(--primary-dark); }
.badge-out-mov{ background: var(--danger-soft); color: var(--danger); }

.empty{ text-align:center; padding:40px 20px; color:var(--ink-faint); }

/* ---------- Toolbar / search ---------- */
.toolbar{ display:flex; gap:10px; flex-wrap:wrap; align-items:center; margin-bottom:16px; }
.toolbar .search{ position:relative; flex:1; min-width:200px; }
.toolbar .search input{ padding-left:38px; }
.toolbar .search svg{ position:absolute; left:12px; top:50%; transform:translateY(-50%); width:16px; height:16px; color:var(--ink-faint); }

/* ---------- Modal ---------- */
.modal-backdrop{
  position:fixed; inset:0; background: rgba(11,26,18,.45);
  display:none; align-items:flex-end; justify-content:center; z-index:100;
  backdrop-filter: blur(2px);
}
.modal-backdrop.open{ display:flex; }
.modal{
  background:#fff; width:100%; max-width:480px;
  border-radius: 20px 20px 0 0; padding:22px;
  max-height:90vh; overflow-y:auto;
  animation: slideup .22s ease;
}
@media (min-width:640px){
  .modal-backdrop{ align-items:center; }
  .modal{ border-radius: var(--radius-lg); }
}
@keyframes slideup{ from{ transform:translateY(24px); opacity:0;} to{ transform:none; opacity:1; } }
.modal-head{ display:flex; align-items:center; justify-content:space-between; margin-bottom:16px; }
.modal-close{ background:none; border:none; cursor:pointer; color:var(--ink-faint); padding:6px; }

#reader{ width:100%; border-radius: var(--radius-md); overflow:hidden; background:#000; }
.scan-result{ margin-top:12px; padding:12px 14px; border-radius: var(--radius-sm); background: var(--surface-soft); font-size:.85rem; }

/* ---------- Toast ---------- */
.toast-wrap{ position:fixed; top:16px; right:16px; z-index:200; display:flex; flex-direction:column; gap:8px; }
.toast{
  background: var(--ink); color:#fff; padding:11px 16px; border-radius: var(--radius-sm);
  font-size:.85rem; box-shadow: var(--shadow-md);
  animation: fadein .18s ease;
  display:flex; align-items:center; gap:8px;
}
.toast.success{ background: var(--primary-dark); }
.toast.error{ background: var(--danger); }

/* ---------- Tarjetas de producto (búsqueda rápida en móvil) ---------- */
.product-cards{ display:none; flex-direction:column; gap:10px; }
.product-card{
  background: var(--surface); border:1px solid var(--border); border-radius: var(--radius-md);
  padding:14px 16px; box-shadow: var(--shadow-sm);
}
.product-card .pc-head{ display:flex; justify-content:space-between; align-items:flex-start; gap:10px; }
.product-card .pc-nombre{ font-weight:700; font-size:1rem; line-height:1.25; }
.product-card .pc-cat{ font-size:.76rem; color:var(--ink-faint); margin-top:2px; }
.product-card .pc-ubicacion{
  display:flex; align-items:center; gap:7px; margin-top:10px; padding:9px 12px;
  background: var(--accent-soft); color: var(--primary-dark); border-radius: var(--radius-sm);
  font-weight:700; font-size:.95rem;
}
.product-card .pc-ubicacion svg{ width:17px; height:17px; flex-shrink:0; }
.product-card .pc-ubicacion.sin-ubicacion{ background: var(--surface-soft); color:var(--ink-faint); font-weight:600; }
.product-card .pc-meta{ display:flex; justify-content:space-between; align-items:center; margin-top:10px; font-size:.85rem; color:var(--ink-soft); }
.product-card .pc-code{ font-family:var(--font-mono); font-size:.78rem; color:var(--ink-soft); margin-top:6px; word-break:break-all; }
.product-card .pc-actions{ margin-top:10px; text-align:right; }

@media (max-width:640px){
  .table-wrap{ display:none; }
  .product-cards{ display:flex; }
}
@keyframes fadein{ from{ opacity:0; transform:translateY(-6px);} to{ opacity:1; transform:none; } }

.qr-print-area{ display:flex; flex-direction:column; align-items:center; gap:10px; padding:20px; border:1px dashed var(--border); border-radius: var(--radius-md); background:#fff; }