/* =====================================================
   MANTENIMIENTO PRO — style.css v3
   DM Sans + Sora | Dark mode | Responsive cards
   ===================================================== */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@300;400;500;600&family=Sora:wght@400;600;700&display=swap');

:root {
  --azul:#1a56db; --azul-dark:#1245b8; --azul-light:#e8f0fe;
  --verde:#057a55; --verde-light:#def7ec;
  --rojo:#c81e1e;  --rojo-light:#fde8e8;
  --naranja:#b45309; --naranja-light:#fef3c7;
  --sidebar-w:240px; --header-h:64px; --radio:10px;
  --sombra:0 1px 3px rgba(0,0,0,.08),0 1px 2px rgba(0,0,0,.04);
  --sombra-md:0 4px 6px rgba(0,0,0,.07),0 2px 4px rgba(0,0,0,.05);
  --bg-primary:#ffffff; --bg-secondary:#f9fafb; --bg-tertiary:#f3f4f6;
  --border-color:#e5e7eb; --border-hover:#d1d5db;
  --text-primary:#111827; --text-secondary:#6b7280; --text-muted:#9ca3af;
  --sidebar-bg:#0f172a; --sidebar-text:#e2e8f0; --sidebar-muted:#64748b;
  --sidebar-hover:rgba(255,255,255,.06); --sidebar-active:rgba(26,86,219,.2);
  --input-bg:#ffffff;
}

[data-theme="dark"] {
  --azul:#4d8ef0; --azul-light:#1e3a5f;
  --verde:#10b981; --verde-light:#064e3b;
  --rojo:#f87171;  --rojo-light:#4c1515;
  --naranja:#f59e0b; --naranja-light:#451a03;
  --bg-primary:#1e2028; --bg-secondary:#16181f; --bg-tertiary:#12141a;
  --border-color:#2d3147; --border-hover:#3d4163;
  --text-primary:#e8eaf0; --text-secondary:#9da3b4; --text-muted:#6b7280;
  --sidebar-bg:#0a0c12; --sidebar-text:#c8ccd8; --sidebar-muted:#3d4163;
  --sidebar-hover:rgba(255,255,255,.04); --sidebar-active:rgba(26,86,219,.25);
  --input-bg:#252830;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;-webkit-text-size-adjust:100%}
body{font-family:'DM Sans',sans-serif;background:var(--bg-tertiary);color:var(--text-primary);line-height:1.6;min-height:100vh;transition:background .2s,color .2s}
h1,h2,h3,h4{font-family:'Sora',sans-serif;font-weight:600;line-height:1.3;color:var(--text-primary)}
h1{font-size:1.75rem}h2{font-size:1.35rem}h3{font-size:1.1rem}
a{color:var(--azul);text-decoration:none}a:hover{text-decoration:underline}

@keyframes toastIn{from{opacity:0;transform:translateX(20px)}to{opacity:1;transform:translateX(0)}}
@keyframes toastOut{from{opacity:1;transform:translateX(0)}to{opacity:0;transform:translateX(20px)}}

/* LOGIN */
.login-wrapper{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#0f172a 0%,#1e3a5f 60%,#1a56db 100%);padding:1rem}
.login-card{background:var(--bg-primary);border-radius:16px;padding:2.5rem 2rem;width:100%;max-width:400px;box-shadow:0 20px 60px rgba(0,0,0,.3)}
.login-logo{text-align:center;margin-bottom:2rem}
.login-logo .icono{width:60px;height:60px;background:var(--azul-light);border-radius:14px;display:flex;align-items:center;justify-content:center;margin:0 auto 1rem;font-size:1.8rem}
.login-logo h1{font-size:1.4rem}.login-logo p{color:var(--text-secondary);font-size:.875rem;margin-top:.25rem}

/* LAYOUT */
.app-wrapper{display:flex;min-height:100vh}
.sidebar{width:var(--sidebar-w);background:var(--sidebar-bg);color:var(--sidebar-text);display:flex;flex-direction:column;position:fixed;top:0;left:0;bottom:0;z-index:100;transition:transform .3s ease}
.sidebar-brand{padding:1.25rem 1.25rem 1rem;border-bottom:1px solid rgba(255,255,255,.08)}
.sidebar-brand .nombre{font-family:'Sora',sans-serif;font-size:1rem;font-weight:700;color:#fff}
.sidebar-brand .version{font-size:.7rem;color:var(--sidebar-muted);margin-top:2px}
.sidebar-menu{flex:1;padding:.75rem 0;overflow-y:auto}
.menu-label{font-size:.65rem;font-weight:600;letter-spacing:.08em;color:var(--sidebar-muted);text-transform:uppercase;padding:.75rem 1.25rem .25rem}
.menu-item{display:flex;align-items:center;gap:.625rem;padding:.6rem 1.25rem;color:#94a3b8;font-size:.875rem;cursor:pointer;text-decoration:none;transition:background .15s,color .15s;position:relative}
.menu-item:hover{background:var(--sidebar-hover);color:var(--sidebar-text);text-decoration:none}
.menu-item.active{background:var(--sidebar-active);color:#93c5fd}
.menu-item.active::before{content:'';position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--azul);border-radius:0 3px 3px 0}
.menu-item .icono{font-size:1rem;width:20px;text-align:center}
.menu-badge{margin-left:auto;background:var(--rojo);color:#fff;font-size:.65rem;font-weight:600;padding:1px 6px;border-radius:20px;min-width:18px;text-align:center}
.sidebar-footer{padding:.875rem 1.25rem;border-top:1px solid rgba(255,255,255,.08);font-size:.8rem;color:var(--sidebar-muted)}
.sidebar-footer .usuario{color:#94a3b8;font-weight:500}

.main-content{margin-left:var(--sidebar-w);flex:1;display:flex;flex-direction:column;min-height:100vh}
.topbar{height:var(--header-h);background:var(--bg-primary);border-bottom:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between;padding:0 1.5rem;position:sticky;top:0;z-index:50;gap:1rem}
.topbar-left{display:flex;align-items:center;gap:1rem;min-width:0}
.btn-menu-mobile{display:none;background:none;border:none;font-size:1.25rem;cursor:pointer;color:var(--text-secondary);padding:.25rem}
.page-title{font-family:'Sora',sans-serif;font-size:1.1rem;font-weight:600;white-space:nowrap}
.page-subtitle{font-size:.8rem;color:var(--text-secondary);margin-top:1px}
.topbar-right{display:flex;align-items:center;gap:.75rem;flex-shrink:0}
.page-body{padding:1.5rem;flex:1}

/* BREADCRUMB */
.breadcrumb{display:flex;align-items:center;gap:.35rem;font-size:.8rem;color:var(--text-secondary);margin-bottom:1rem;flex-wrap:wrap}
.breadcrumb a{color:var(--azul)}.breadcrumb .sep{color:var(--text-muted)}

/* GLOBAL SEARCH */
.global-search-wrap{position:relative;width:240px}
.global-search-wrap input{width:100%;padding:.4rem .75rem .4rem 2rem;border:1px solid var(--border-color);border-radius:8px;font-size:.875rem;background:var(--bg-secondary);color:var(--text-primary);font-family:'DM Sans',sans-serif}
.global-search-wrap input:focus{outline:none;border-color:var(--azul);box-shadow:0 0 0 3px rgba(26,86,219,.12)}
.global-search-icon{position:absolute;left:.6rem;top:50%;transform:translateY(-50%);color:var(--text-muted);font-size:.8rem;pointer-events:none}
#global-results{display:none;position:absolute;top:calc(100% + 4px);left:0;right:0;background:var(--bg-primary);border:1px solid var(--border-color);border-radius:10px;box-shadow:var(--sombra-md);z-index:200;max-height:360px;overflow-y:auto}

/* DARK TOGGLE */
.dark-toggle{background:none;border:1px solid var(--border-color);border-radius:8px;padding:.35rem .5rem;cursor:pointer;font-size:1rem;color:var(--text-primary);transition:background .15s}
.dark-toggle:hover{background:var(--bg-secondary)}

/* CARDS */
.card{background:var(--bg-primary);border-radius:var(--radio);border:1px solid var(--border-color);box-shadow:var(--sombra)}
.card-header{padding:1rem 1.25rem;border-bottom:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap}
.card-body{padding:1.25rem}

/* STATS */
.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:1rem;margin-bottom:1.5rem}
.stat-card{background:var(--bg-primary);border-radius:var(--radio);border:1px solid var(--border-color);padding:1.25rem;display:flex;align-items:flex-start;gap:1rem;box-shadow:var(--sombra)}
.stat-icon{width:44px;height:44px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:1.25rem;flex-shrink:0}
.stat-icon.rojo{background:var(--rojo-light)}.stat-icon.naranja{background:var(--naranja-light)}.stat-icon.verde{background:var(--verde-light)}.stat-icon.azul{background:var(--azul-light)}
.stat-valor{font-family:'Sora',sans-serif;font-size:1.75rem;font-weight:700;line-height:1;color:var(--text-primary)}
.stat-label{font-size:.8rem;color:var(--text-secondary);margin-top:.25rem}

/* BUTTONS */
.btn{display:inline-flex;align-items:center;gap:.4rem;padding:.5rem 1rem;border-radius:8px;font-size:.875rem;font-weight:500;font-family:'DM Sans',sans-serif;border:none;cursor:pointer;transition:all .15s;text-decoration:none;white-space:nowrap}
.btn:hover{text-decoration:none;filter:brightness(.93)}.btn:active{transform:scale(.98)}
.btn-primary{background:var(--azul);color:#fff}.btn-success{background:var(--verde);color:#fff}
.btn-danger{background:var(--rojo);color:#fff}.btn-ghost{background:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--border-color)}
.btn-outline{background:transparent;color:var(--azul);border:1px solid var(--azul)}.btn-whatsapp{background:#25d366;color:#fff}
.btn-sm{padding:.35rem .75rem;font-size:.8rem}.btn-lg{padding:.75rem 1.5rem;font-size:1rem}.btn-full{width:100%;justify-content:center}

/* FORMS */
.form-group{margin-bottom:1rem}
.form-label{display:block;font-size:.875rem;font-weight:500;color:var(--text-primary);margin-bottom:.35rem}
.form-label .req{color:var(--rojo);margin-left:2px}
.form-control{width:100%;padding:.55rem .875rem;border:1px solid var(--border-color);border-radius:8px;font-size:.9rem;font-family:'DM Sans',sans-serif;color:var(--text-primary);background:var(--input-bg);transition:border-color .15s,box-shadow .15s;appearance:none}
.form-control:focus{outline:none;border-color:var(--azul);box-shadow:0 0 0 3px rgba(26,86,219,.12)}
.form-control::placeholder{color:var(--text-muted)}
textarea.form-control{resize:vertical;min-height:90px}
select.form-control{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236b7280' d='M6 8L1 3h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right .75rem center;padding-right:2rem}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 1rem}
.form-full{grid-column:1/-1}
.form-hint{font-size:.78rem;color:var(--text-secondary);margin-top:.25rem}

/* TABLES */
.table-wrap{overflow-x:auto}
table.data-table{width:100%;border-collapse:collapse;font-size:.875rem}
.data-table th{background:var(--bg-secondary);color:var(--text-secondary);font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;padding:.625rem 1rem;text-align:left;border-bottom:1px solid var(--border-color);white-space:nowrap}
.data-table td{padding:.875rem 1rem;border-bottom:1px solid var(--bg-tertiary);color:var(--text-secondary);vertical-align:middle}
.data-table tr:last-child td{border-bottom:none}
.data-table tr:hover td{background:var(--bg-secondary)}
.data-table .nombre-cliente{font-weight:500;color:var(--text-primary)}
.data-table .sub{font-size:.78rem;color:var(--text-secondary);margin-top:1px}

/* BADGES */
.badge{display:inline-flex;align-items:center;gap:.3rem;padding:.2rem .6rem;border-radius:20px;font-size:.75rem;font-weight:600}
.badge-rojo{background:var(--rojo-light);color:var(--rojo)}.badge-naranja{background:var(--naranja-light);color:var(--naranja)}
.badge-verde{background:var(--verde-light);color:var(--verde)}.badge-azul{background:var(--azul-light);color:var(--azul)}
.badge-gris{background:var(--bg-tertiary);color:var(--text-secondary)}

/* ALERTS */
.alert{padding:.875rem 1rem;border-radius:8px;font-size:.875rem;margin-bottom:1rem;display:flex;align-items:flex-start;gap:.625rem}
.alert-success{background:var(--verde-light);color:var(--verde)}.alert-danger{background:var(--rojo-light);color:var(--rojo)}
.alert-info{background:var(--azul-light);color:var(--azul)}.alert-warning{background:var(--naranja-light);color:var(--naranja)}

/* DIAS CHIP */
.dias-chip{display:inline-flex;align-items:center;gap:.3rem;padding:.25rem .75rem;border-radius:20px;font-size:.8rem;font-weight:600}
.dias-chip.vencido{background:var(--rojo-light);color:var(--rojo)}.dias-chip.urgente{background:var(--naranja-light);color:var(--naranja)}
.dias-chip.proximo{background:var(--azul-light);color:var(--azul)}.dias-chip.ok{background:var(--verde-light);color:var(--verde)}

/* MISC */
.quick-actions{display:flex;gap:.75rem;flex-wrap:wrap;margin-bottom:1.5rem}
.empty-state{text-align:center;padding:3rem 1rem;color:var(--text-secondary)}
.empty-state .icono{font-size:2.5rem;margin-bottom:.75rem}
.empty-state h3{font-size:1rem;color:var(--text-primary);margin-bottom:.5rem}
.sidebar-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:99}
.pagination{display:flex;align-items:center;gap:.25rem;padding:.875rem 1rem;border-top:1px solid var(--border-color);font-size:.875rem;flex-wrap:wrap}
.pag-info{color:var(--text-secondary);margin-right:auto}
.pag-btn{padding:.35rem .625rem;border-radius:6px;border:1px solid var(--border-color);background:var(--bg-primary);cursor:pointer;color:var(--text-primary);font-size:.875rem;text-decoration:none}
.pag-btn:hover{background:var(--bg-secondary);text-decoration:none}.pag-btn.active{background:var(--azul);color:#fff;border-color:var(--azul)}
.search-box{position:relative;max-width:280px;flex:1}
.search-box input{padding-left:2.25rem}
.search-box .icon{position:absolute;left:.75rem;top:50%;transform:translateY(-50%);color:var(--text-muted);font-size:.875rem;pointer-events:none}
.vars-list{display:flex;flex-wrap:wrap;gap:.35rem;margin-top:.5rem}
.var-chip{background:var(--azul-light);color:var(--azul);padding:.15rem .5rem;border-radius:4px;font-size:.75rem;font-family:monospace;cursor:pointer;border:none;transition:background .15s}

/* IMAGEN PRODUCTO */
.img-upload-zone{border:2px dashed var(--border-color);border-radius:var(--radio);padding:1.5rem;text-align:center;cursor:pointer;transition:border-color .2s,background .2s;background:var(--bg-secondary);position:relative}
.img-upload-zone:hover{border-color:var(--azul);background:var(--azul-light)}
.img-upload-zone input[type="file"]{position:absolute;inset:0;opacity:0;cursor:pointer;width:100%;height:100%}
.img-preview{width:120px;height:120px;object-fit:cover;border-radius:8px;border:1px solid var(--border-color)}

/* STOCK ALERT */
.stock-alert-card{border-left:4px solid var(--naranja);background:var(--naranja-light);border-radius:0 var(--radio) var(--radio) 0;padding:.875rem 1.25rem;margin-bottom:.5rem;display:flex;align-items:center;justify-content:space-between;gap:1rem}
.stock-alert-card .producto-nombre{font-weight:500;font-size:.9rem;color:var(--text-primary)}
.stock-alert-card .stock-info{font-size:.8rem;color:var(--naranja)}

/* CHARTS */
.chart-container{position:relative;height:260px}

/* ROLES */
.role-badge{font-size:.7rem;padding:.15rem .5rem;border-radius:4px;font-weight:600;text-transform:uppercase;letter-spacing:.04em}
.role-admin{background:#eff6ff;color:#1e40af}.role-facturacion{background:#ecfdf5;color:#065f46}.role-readonly{background:#f3f4f6;color:#374151}
[data-theme="dark"] .role-admin{background:#1e3a5f;color:#93c5fd}
[data-theme="dark"] .role-facturacion{background:#064e3b;color:#6ee7b7}
[data-theme="dark"] .role-readonly{background:#2d3147;color:#9da3b4}

/* =====================================================
   RESPONSIVE — Tablas → Tarjetas en móvil
   ===================================================== */
@media (max-width:768px) {
  :root{--sidebar-w:0px}
  .sidebar{width:260px;transform:translateX(-100%)}
  .sidebar.open{transform:translateX(0)}
  .sidebar-overlay.open{display:block}
  .main-content{margin-left:0}
  .btn-menu-mobile{display:flex}
  .form-grid{grid-template-columns:1fr}
  .form-full{grid-column:1}
  .stats-grid{grid-template-columns:1fr 1fr}
  .topbar{padding:0 1rem}
  .page-body{padding:1rem}
  .card-header{flex-direction:column;align-items:flex-start}
  h1{font-size:1.35rem}
  .quick-actions{gap:.5rem}
  .quick-actions .btn{flex:1;justify-content:center;min-width:0}
  .global-search-wrap{width:160px}
  .topbar-right{gap:.5rem}

  /* TABLAS → TARJETAS */
  .table-wrap{overflow-x:visible}
  .data-table thead{display:none}
  .data-table,.data-table tbody,.data-table tr,.data-table td{display:block;width:100%}
  .data-table tr{background:var(--bg-primary);border:1px solid var(--border-color);border-radius:var(--radio);margin-bottom:.75rem;box-shadow:var(--sombra);overflow:hidden}
  .data-table td{display:flex;align-items:flex-start;gap:.625rem;padding:.625rem 1rem;border-bottom:1px solid var(--bg-tertiary);font-size:.875rem;min-height:40px}
  .data-table td:last-child{border-bottom:none}
  .data-table td::before{content:attr(data-label);font-size:.72rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted);min-width:90px;flex-shrink:0;padding-top:3px}
  .data-table td:empty{display:none}
}

@media (max-width:480px) {
  .stats-grid{grid-template-columns:1fr}
  .global-search-wrap{display:none}
  .topbar-right{gap:.35rem}
}