@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600&family=Space+Grotesk:wght@500;600;700&display=swap');
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --primary:#1a3a5c;--primary-light:#2563a8;--accent:#f97316;
  --bg:#f0f4f8;--surface:#fff;--surface2:#f8fafc;--border:#e2e8f0;
  --text:#0f172a;--text2:#64748b;--text3:#94a3b8;
  --success:#10b981;--danger:#ef4444;--warning:#f59e0b;
  --sidebar:240px;--topbar:56px;
}
body{font-family:'DM Sans',sans-serif;background:var(--bg);color:var(--text);display:flex;min-height:100vh;font-size:14px}

/* SIDEBAR */
#sidebar{width:var(--sidebar);min-height:100vh;background:var(--primary);display:flex;flex-direction:column;position:fixed;top:0;left:0;z-index:200;overflow-y:auto;scrollbar-width:none;transition:transform .25s ease}
#sidebar::-webkit-scrollbar{display:none}
.logo{padding:.8rem 1.1rem .7rem;border-bottom:1px solid rgba(255,255,255,.08)}
.logo img{height:52px;width:auto;display:block;margin:0 auto .35rem;mix-blend-mode:screen;opacity:.95}
.logo h1{font-family:'Space Grotesk',sans-serif;font-size:.78rem;font-weight:700;color:#fff;line-height:1.2;text-align:center;letter-spacing:.03em}
.logo p{font-size:.6rem;color:rgba(255,255,255,.35);margin-top:2px;text-align:center;letter-spacing:.08em;text-transform:uppercase}
.empresa-selector{padding:.6rem 1.1rem;border-bottom:1px solid rgba(255,255,255,.1)}
.empresa-selector label{font-size:.62rem;text-transform:uppercase;letter-spacing:.06em;color:rgba(255,255,255,.4);font-weight:600;display:block;margin-bottom:.3rem}
.empresa-selector select{width:100%;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.15);color:#fff;border-radius:6px;padding:.35rem .6rem;font-size:.78rem;font-family:'DM Sans',sans-serif;cursor:pointer}
.empresa-selector select option{background:#1a3a5c;color:#fff}
nav{flex:1;padding:.6rem 0}
.nav-section{font-size:.6rem;text-transform:uppercase;letter-spacing:.09em;color:rgba(255,255,255,.3);padding:.5rem 1.1rem .15rem;font-weight:600}

/* Sidebar colapsable */
.nav-group{overflow:hidden}
.nav-section-btn{
  width:100%;display:flex;align-items:center;justify-content:space-between;
  padding:.42rem 1.1rem;background:none;border:none;cursor:pointer;
  font-size:.6rem;text-transform:uppercase;letter-spacing:.09em;
  color:rgba(255,255,255,.35);font-weight:600;font-family:'DM Sans',sans-serif;
  transition:color .15s;
}
.nav-section-btn:hover{color:rgba(255,255,255,.6)}
.ng-arrow{font-size:.65rem;transition:transform .2s;display:inline-block;transform:rotate(-90deg)}
.nav-group.open .ng-arrow{transform:rotate(0deg)}
.nav-group-items{max-height:0;overflow:hidden;transition:max-height .25s ease}
.nav-group.open .nav-group-items{max-height:300px}

.nav-item{display:flex;align-items:center;gap:.6rem;padding:.48rem 1.1rem;cursor:pointer;color:rgba(255,255,255,.6);font-size:.81rem;font-weight:500;transition:all .15s;border-left:3px solid transparent;text-decoration:none}
.nav-item:hover{background:rgba(255,255,255,.07);color:#fff}
.nav-item.active{background:rgba(255,255,255,.1);color:#fff;border-left-color:var(--accent)}
.nav-item svg{width:16px;height:16px;flex-shrink:0}

/* MAIN */
#main{margin-left:var(--sidebar);flex:1;display:flex;flex-direction:column;min-height:100vh;transition:margin-left .25s ease}
#topbar{background:var(--surface);border-bottom:1px solid var(--border);padding:0 1.5rem;height:var(--topbar);display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:100}
#page-title{font-family:'Space Grotesk',sans-serif;font-size:1rem;font-weight:600}
.topbar-left{display:flex;align-items:center;gap:.6rem}
.topbar-right{display:flex;align-items:center;gap:.6rem}
.empresa-badge{background:var(--primary);color:#fff;font-size:.7rem;font-weight:600;padding:.22rem .65rem;border-radius:20px;max-width:180px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
#content{padding:1.25rem 1.5rem;flex:1}

/* STATS */
.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:.85rem;margin-bottom:1.1rem}
.stat-card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:.9rem 1rem}
.stat-label{font-size:.65rem;text-transform:uppercase;letter-spacing:.06em;color:var(--text2);font-weight:600;margin-bottom:.35rem}
.stat-value{font-family:'Space Grotesk',sans-serif;font-size:1.35rem;font-weight:700;line-height:1.1}
.stat-sub{font-size:.7rem;color:var(--text3);margin-top:.2rem}
.stat-card.accent{background:var(--primary);border-color:var(--primary)}
.stat-card.accent .stat-label,.stat-card.accent .stat-sub{color:rgba(255,255,255,.55)}
.stat-card.accent .stat-value{color:#fff}
.stat-card.s-success{border-left:4px solid var(--success)}
.stat-card.s-danger{border-left:4px solid var(--danger)}
.stat-card.s-warning{border-left:4px solid var(--warning)}
.stat-card.s-accent{border-left:4px solid var(--accent)}

/* CHARTS */
.charts-grid{display:grid;grid-template-columns:1fr 1fr;gap:.85rem;margin-bottom:1.1rem}
.chart-card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:1rem}
.chart-card.full{grid-column:1/-1}
.chart-title{font-size:.68rem;font-weight:600;color:var(--text2);text-transform:uppercase;letter-spacing:.05em;margin-bottom:.8rem}
.chart-wrap{position:relative;height:200px}

/* CARDS */
.card{background:var(--surface);border:1px solid var(--border);border-radius:12px;margin-bottom:1.1rem;overflow:hidden}
.card-header{padding:.8rem 1.1rem;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;gap:.5rem;flex-wrap:wrap}
.card-header h3{font-size:.82rem;font-weight:600}
.card-actions{display:flex;gap:.4rem;align-items:center;flex-wrap:wrap}
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:.79rem}
thead th{background:var(--surface2);padding:.52rem .85rem;text-align:left;font-size:.66rem;text-transform:uppercase;letter-spacing:.05em;color:var(--text2);font-weight:600;white-space:nowrap}
tbody td{padding:.56rem .85rem;border-top:1px solid var(--border);vertical-align:middle}
tbody tr:hover{background:var(--surface2)}
tfoot td{padding:.56rem .85rem;border-top:2px solid var(--border);font-weight:600;background:var(--surface2)}
.num{text-align:right;font-variant-numeric:tabular-nums;font-family:'Space Grotesk',sans-serif}

/* BADGES */
.badge{display:inline-block;font-size:.64rem;font-weight:600;padding:.16rem .48rem;border-radius:20px;white-space:nowrap}
.badge-green{background:#dcfce7;color:#166534}
.badge-blue{background:#dbeafe;color:#1e40af}
.badge-orange{background:#ffedd5;color:#9a3412}
.badge-red{background:#fee2e2;color:#991b1b}
.badge-gray{background:#f1f5f9;color:#475569}
.badge-purple{background:#f3e8ff;color:#6b21a8}

/* FORMS */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:.8rem;padding:1rem}
.form-group{display:flex;flex-direction:column;gap:.28rem}
.form-group.full{grid-column:1/-1}
label{font-size:.71rem;font-weight:600;color:var(--text2)}
input,select,textarea{padding:.48rem .65rem;border:1px solid var(--border);border-radius:8px;font-size:.81rem;font-family:'DM Sans',sans-serif;background:var(--surface);color:var(--text);width:100%;transition:border-color .15s,box-shadow .15s}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary-light);box-shadow:0 0 0 3px rgba(37,99,168,.1)}
input[readonly]{background:var(--surface2);color:var(--text2);cursor:default}
.form-actions{padding:.65rem 1rem;border-top:1px solid var(--border);display:flex;justify-content:flex-end;gap:.5rem;background:var(--surface2)}

/* BUTTONS */
.btn{display:inline-flex;align-items:center;gap:.3rem;padding:.45rem .9rem;border-radius:8px;font-size:.77rem;font-weight:600;cursor:pointer;border:none;transition:all .15s;font-family:'DM Sans',sans-serif;white-space:nowrap}
.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-light)}
.btn-success{background:var(--success);color:#fff}
.btn-danger{background:var(--danger);color:#fff}
.btn-warning{background:var(--warning);color:#fff}
.btn-ghost{background:transparent;color:var(--text2);border:1px solid var(--border)}.btn-ghost:hover{background:var(--surface2)}
.btn-sm{padding:.28rem .6rem;font-size:.71rem}

/* LOADER */
.loader{text-align:center;padding:2rem;color:var(--text3);font-size:.82rem}
.spinner{width:22px;height:22px;border:2px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .7s linear infinite;margin:0 auto .5rem}
@keyframes spin{to{transform:rotate(360deg)}}

/* TOAST */
#toast{position:fixed;bottom:1.5rem;right:1.5rem;background:var(--primary);color:#fff;padding:.6rem 1.1rem;border-radius:10px;font-size:.79rem;font-weight:500;z-index:9999;opacity:0;transition:opacity .3s;pointer-events:none;max-width:320px}
#toast.show{opacity:1}

/* MODAL */
.modal-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:500;display:flex;align-items:center;justify-content:center;padding:1rem}
.modal{background:var(--surface);border-radius:14px;width:520px;max-width:100%;max-height:90vh;overflow-y:auto;box-shadow:0 20px 60px rgba(0,0,0,.2)}
.modal-lg{width:700px}
.modal-header{padding:.9rem 1.1rem;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;background:var(--surface);z-index:1}
.modal-header h3{font-size:.88rem;font-weight:600}
.modal-close{background:none;border:none;cursor:pointer;color:var(--text2);font-size:1.2rem;line-height:1;padding:.2rem}
.modal-close:hover{color:var(--danger)}

/* EMPTY */
.empty{text-align:center;padding:2rem;color:var(--text3);font-size:.82rem}

/* SELECTOR DE EMPRESA (pantalla inicio) */
.empresa-select-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--bg)}
.empresa-select-box{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:2.5rem;width:420px;max-width:95vw;text-align:center;box-shadow:0 4px 24px rgba(0,0,0,.08)}
.empresa-select-box h2{font-family:'Space Grotesk',sans-serif;font-size:1.2rem;font-weight:700;margin-bottom:.4rem}
.empresa-select-box p{font-size:.82rem;color:var(--text2);margin-bottom:1.5rem}
.empresa-list{display:flex;flex-direction:column;gap:.5rem;margin-bottom:1rem}
.empresa-btn{display:flex;align-items:center;gap:.75rem;padding:.8rem 1rem;border:2px solid var(--border);border-radius:10px;cursor:pointer;background:var(--surface);transition:all .15s;text-align:left;width:100%}
.empresa-btn:hover{border-color:var(--primary);background:#eff6ff}
.empresa-btn .ico{width:36px;height:36px;background:var(--primary);border-radius:8px;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:.85rem;flex-shrink:0}
.empresa-btn .info strong{display:block;font-size:.85rem;font-weight:600}
.empresa-btn .info span{font-size:.72rem;color:var(--text2)}

/* CONTACTOS PROVEEDOR */
.contacto-item{display:grid;grid-template-columns:1fr 1fr 1fr auto;gap:.5rem;align-items:end;padding:.6rem;background:var(--surface2);border-radius:8px;margin-bottom:.4rem;border:1px solid var(--border)}

/* EXPORT BAR */
.export-bar{display:flex;gap:.4rem;align-items:center}

/* DROP ZONE */
.drop-zone{border:2px dashed var(--border);border-radius:12px;padding:2rem;text-align:center;cursor:pointer;transition:all .2s;background:var(--surface)}
.drop-zone:hover,.drop-zone.drag-over{border-color:var(--primary-light);background:#eff6ff}
.drop-zone p{color:var(--text2);font-size:.85rem;margin-top:.5rem}
.drop-zone small{color:var(--text3);font-size:.72rem}

@media(max-width:900px){.charts-grid{grid-template-columns:1fr}.form-grid{grid-template-columns:1fr}}

/* ===== HAMBURGUESA (siempre visible, controla el sidebar en cualquier resolución) ===== */
#hamburger-btn{display:flex;align-items:center;justify-content:center;background:none;border:none;cursor:pointer;color:var(--text);padding:.4rem;border-radius:8px;flex-shrink:0}
#hamburger-btn:hover{background:var(--surface2)}
#hamburger-btn svg{width:22px;height:22px;display:block}

/* Desktop: el sidebar se colapsa deslizando fuera de vista y #main recupera el ancho */
body.sidebar-collapsed #sidebar{transform:translateX(-100%)}
body.sidebar-collapsed #main{margin-left:0}

#sidebar-overlay{display:none}

/* ===== TABLET / MOVIL (≤1024px): el sidebar siempre es un overlay deslizante ===== */
@media(max-width:1024px){
  #sidebar{transform:translateX(-100%)}
  body.sidebar-open #sidebar{transform:translateX(0);box-shadow:8px 0 24px rgba(0,0,0,.18)}
  #main{margin-left:0}
  body.sidebar-collapsed #main{margin-left:0}

  #sidebar-overlay{
    display:block;position:fixed;inset:0;background:rgba(15,23,42,.45);
    z-index:190;opacity:0;pointer-events:none;transition:opacity .25s ease;
  }
  body.sidebar-open #sidebar-overlay{opacity:1;pointer-events:auto}

  #topbar{padding:0 1rem}
  #content{padding:1rem}

  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .charts-grid{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .kpi-grid{grid-template-columns:repeat(2,1fr)!important}

  .modal-lg{width:94vw}
  .modal{width:94vw}

  /* Tablas: permitir scroll horizontal suave con momentum en iPadOS */
  .table-wrap{-webkit-overflow-scrolling:touch}
  table{font-size:.74rem}
  thead th,tbody td{padding:.45rem .6rem}

  /* Botones e inputs un poco mas grandes para dedo en touch */
  .btn{padding:.5rem 1rem}
  input,select,textarea{padding:.55rem .7rem;font-size:.85rem}
}

/* ===== MOVIL ===== */
@media(max-width:560px){
  .stats-grid{grid-template-columns:1fr 1fr}
  .kpi-grid{grid-template-columns:1fr!important}
  #page-title{font-size:.88rem}
  .empresa-badge{max-width:110px}
  #user-nombre{display:none}
  .card-header{flex-direction:column;align-items:flex-start}
  .export-bar{width:100%;justify-content:flex-end}
}