/* base.css — Variables, reset, layout global */
:root {
  --font-main: 'DM Sans', sans-serif;
  --font-mono: 'DM Mono', monospace;
  --color-accent:       #1A56A0;
  --color-accent-light: #EAF1FB;
  --color-accent-mid:   #B8D0F0;
  --color-bg:       #F5F4F0;
  --color-surface:  #FFFFFF;
  --color-border:   #E4E2DC;
  --color-border-s: #EDECEA;
  --color-text:     #1A1915;
  --color-muted:    #6B6A65;
  --color-hint:     #9E9D98;
  --color-success:  #2D6A4F; --color-success-bg: #EAF4EE;
  --color-warning:  #8C5A00; --color-warning-bg: #FEF3DA;
  --color-danger:   #9B1C1C; --color-danger-bg:  #FEF0F0;
  --sidebar-w: 216px;
  --radius-sm: 6px; --radius-md: 10px; --radius-lg: 14px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,.09);
}
*,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0; }
html,body { height: 100%; font-family: var(--font-main); font-size: 14px; color: var(--color-text); background: var(--color-bg); -webkit-font-smoothing: antialiased; }
a { text-decoration: none; color: inherit; cursor: pointer; }
button { font-family: var(--font-main); cursor: pointer; }
input,select,textarea { font-family: var(--font-main); }

.app { display: flex; height: 100vh; overflow: hidden; }
.main-content { flex: 1; overflow-y: auto; padding: 28px 32px; background: var(--color-bg); }

.page { display: none; }
.page.active { display: block; animation: pageIn .18s ease; }
@keyframes pageIn { from{opacity:0;transform:translateY(5px)} to{opacity:1;transform:translateY(0)} }

.topbar { display:flex; align-items:center; justify-content:space-between; margin-bottom:24px; }
.topbar h1 { font-size:20px; font-weight:600; letter-spacing:-.3px; }
.topbar-actions { display:flex; gap:10px; align-items:center; }

.kpi-grid   { display:grid; grid-template-columns:repeat(4,1fr); gap:14px; margin-bottom:22px; }
.kpi-grid-3 { display:grid; grid-template-columns:repeat(3,1fr); gap:14px; margin-bottom:22px; }
.two-col    { display:grid; grid-template-columns:1fr 1fr; gap:16px; margin-bottom:16px; }
.three-col  { display:grid; grid-template-columns:1fr 1fr 1fr; gap:14px; margin-bottom:16px; }
.stats-row  { display:grid; grid-template-columns:repeat(4,1fr); gap:12px; margin-bottom:20px; }
.stats-row-3{ display:grid; grid-template-columns:repeat(3,1fr); gap:12px; margin-bottom:20px; }

.alert-banner { display:flex; align-items:center; gap:10px; background:var(--color-warning-bg); border:1px solid #F0C84A; border-radius:var(--radius-md); padding:10px 16px; font-size:13px; color:var(--color-warning); margin-bottom:20px; }
.alert-banner.danger { background:var(--color-danger-bg); border-color:#F5B5B5; color:var(--color-danger); }

/* Spinner */
.spinner { width:28px; height:28px; border:2.5px solid var(--color-border); border-top-color:var(--color-accent); border-radius:50%; animation:spin .7s linear infinite; }
@keyframes spin { to{transform:rotate(360deg)} }

/* Empty state */
.empty-state { text-align:center; padding:48px 20px; color:var(--color-hint); font-size:13px; }

/* Chart wrapper */
.chart-wrap { position:relative; width:100%; height:220px; }

/* Progress bar */
.progress-bar { height:4px; background:var(--color-accent); border-radius:2px; transition:width .3s; width:0%; }
.progress-track { height:4px; background:var(--color-border); border-radius:2px; overflow:hidden; }

/* =============================================
   RESPONSIVE — Mobile & Tablet
   ============================================= */

/* Tablet (768px - 1024px) */
@media (max-width: 1024px) {
  :root { --sidebar-w: 200px; }
  .kpi-grid   { grid-template-columns: repeat(2, 1fr); }
  .stats-row  { grid-template-columns: repeat(2, 1fr); }
  .kpi-grid-3 { grid-template-columns: repeat(2, 1fr); }
}

/* Mobile (< 768px) */
@media (max-width: 768px) {
  :root { --sidebar-w: 0px; }

  .app { position: relative; }

  /* Sidebar oculto por defecto en mobile */
  .sidebar {
    position: fixed;
    left: -260px;
    top: 0; bottom: 0;
    width: 260px !important;
    z-index: 300;
    transition: left .25s ease;
    box-shadow: 4px 0 20px rgba(0,0,0,.15);
  }
  .sidebar.open { left: 0; }

  /* Overlay cuando sidebar está abierto */
  .sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.4);
    z-index: 299;
  }
  .sidebar-overlay.show { display: block; }

  /* Topbar mobile con hamburger */
  .mobile-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 12px 16px;
    position: sticky;
    top: 0;
    z-index: 100;
  }
  .mobile-menu-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
    color: var(--color-text);
    display: flex;
    align-items: center;
  }
  .mobile-empresa-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text);
  }
  .mobile-empresa-btn {
    font-size: 11px;
    color: var(--color-accent);
    background: var(--color-accent-light);
    border: 1px solid var(--color-accent-mid);
    border-radius: 20px;
    padding: 4px 10px;
    cursor: pointer;
  }

  .main-content {
    padding: 16px;
    padding-top: 0;
  }

  /* Grids en mobile */
  .kpi-grid, .kpi-grid-3, .stats-row, .stats-row-3 {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
  .two-col, .three-col { grid-template-columns: 1fr; }

  /* Topbar en mobile */
  .topbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 16px;
  }
  .topbar-actions {
    width: 100%;
    flex-wrap: wrap;
  }

  /* KPI values más pequeños */
  .kpi-value { font-size: 18px; }
  .stat-mini-value { font-size: 16px; }

  /* Tablas con scroll horizontal */
  .card { overflow-x: auto; }
  .inner-table { min-width: 500px; }
  table.inner-table { font-size: 12px; }

  /* Modal full screen en mobile */
  .modal-box {
    width: 100% !important;
    max-width: 100% !important;
    max-height: 90vh;
    border-radius: 16px 16px 0 0;
    top: auto;
    bottom: 0;
    left: 0;
    transform: none !important;
    animation: slideUp .2s ease;
  }
  .modal-box.open { transform: none !important; }
  @keyframes slideUp {
    from { transform: translateY(100%); }
    to   { transform: translateY(0); }
  }
  .modal-overlay.open { display: block; }

  /* Form grid en mobile */
  .form-grid { grid-template-columns: 1fr; }
  .form-full { grid-column: 1; }

  /* Clientes en mobile */
  #clientesGrid { grid-template-columns: 1fr !important; }
}

/* Muy pequeño (< 400px) */
@media (max-width: 400px) {
  .kpi-grid, .stats-row { grid-template-columns: 1fr; }
  .kpi-value { font-size: 16px; }
}

/* ── Mobile topbar always visible fix ── */
@media (max-width: 768px) {
  .app {
    flex-direction: column !important;
  }

  /* Sidebar fixed y oculto */
  .sidebar {
    position: fixed !important;
    left: -280px !important;
    top: 0 !important;
    bottom: 0 !important;
    width: 260px !important;
    z-index: 300 !important;
    transition: left .25s ease !important;
    overflow-y: auto;
  }
  .sidebar.open {
    left: 0 !important;
    box-shadow: 4px 0 24px rgba(0,0,0,.2);
  }

  /* Main content toma todo el ancho */
  .main-content {
    margin-left: 0 !important;
    width: 100% !important;
    padding: 12px !important;
  }

  /* Mobile topbar */
  #mobileTopbar {
    display: flex !important;
    position: sticky;
    top: 0;
    z-index: 200;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 10px 14px;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
  }

  /* KPIs en mobile */
  .kpi-grid {
    grid-template-columns: 1fr 1fr !important;
    gap: 8px !important;
  }
  .kpi-card { padding: 14px !important; }
  .kpi-value { font-size: 17px !important; }
  .kpi-label { font-size: 10px !important; }

  /* Stats row */
  .stats-row {
    grid-template-columns: 1fr 1fr !important;
    gap: 8px !important;
  }

  /* Topbar de módulos */
  .topbar {
    flex-wrap: wrap;
    gap: 8px;
  }
  .topbar h1 { font-size: 18px; }
  .topbar-actions { flex-wrap: wrap; gap: 6px; }

  /* Tablas scroll */
  .inner-table-wrap, .card { overflow-x: auto; }

  /* Modal full */
  .modal-overlay { align-items: flex-end !important; }
  .modal-box {
    width: 100% !important;
    max-height: 85vh !important;
    border-radius: 16px 16px 0 0 !important;
    margin: 0 !important;
    overflow-y: auto;
  }
}