/* ==========================================================================
   SISTEMA DE GESTIÓN EMPRESARIAL - STYLESHEET
   Style: Formal Corporate Modern / Slate Clean UI
   ========================================================================== */

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

:root {
  --bg-app: #f1f5f9;
  --bg-card: #ffffff;
  --bg-sidebar: #0f172a;
  --bg-sidebar-hover: #1e293b;
  --bg-sidebar-active: #0284c7;

  --border-color: #e2e8f0;
  --border-dark: #334155;

  --text-main: #1e293b;
  --text-muted: #64748b;
  --text-light: #f8fafc;

  --primary: #0284c7;
  --primary-hover: #0369a1;
  --primary-light: #e0f2fe;

  --success: #10b981;
  --success-light: #d1fae5;

  --warning: #f59e0b;
  --warning-light: #fef3c7;

  --danger: #ef4444;
  --danger-light: #fee2e2;

  --info: #6366f1;
  --info-light: #e0e7ff;

  --font-family: 'Inter', sans-serif;
  --radius: 8px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -1px rgba(0,0,0,0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -2px rgba(0,0,0,0.03);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-app);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  font-size: 0.925rem;
  line-height: 1.5;
}

/* --- Layout Grid --- */
.app-wrapper {
  display: flex;
  width: 100%;
  min-height: 100vh;
}

/* --- Sidebar --- */
aside.sidebar {
  width: 250px;
  background-color: var(--bg-sidebar);
  color: var(--text-light);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  transition: all 0.3s ease;
  z-index: 100;
}

.sidebar-header {
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  border-bottom: 1px solid var(--border-dark);
}

.brand-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--primary), #38bdf8);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  box-shadow: 0 0 15px rgba(2, 132, 199, 0.4);
}

.brand-name {
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.5px;
  color: #ffffff;
}

.sidebar-menu {
  padding: 1rem 0;
  list-style: none;
  flex: 1;
}

.menu-category {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: #64748b;
  padding: 0.75rem 1.5rem 0.35rem 1.5rem;
  font-weight: 600;
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.7rem 1.5rem;
  color: #94a3b8;
  text-decoration: none;
  font-weight: 500;
  transition: all 0.2s ease;
}

.sidebar-link:hover {
  background-color: var(--bg-sidebar-hover);
  color: #ffffff;
}

.sidebar-link.active {
  background-color: var(--bg-sidebar-active);
  color: #ffffff;
  border-left: 4px solid #38bdf8;
}

.sidebar-link svg {
  width: 18px;
  height: 18px;
  stroke-width: 2;
}

.sidebar-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border-dark);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.user-info {
  display: flex;
  flex-direction: column;
}

.user-name {
  font-weight: 600;
  font-size: 0.85rem;
  color: #ffffff;
}

.user-role {
  font-size: 0.75rem;
  color: #94a3b8;
  text-transform: capitalize;
}

/* --- Main Content Area --- */
.main-wrapper {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

header.navbar {
  background-color: #ffffff;
  border-bottom: 1px solid var(--border-color);
  padding: 0.85rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
}

.page-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.content-body {
  padding: 2rem;
  flex: 1;
}

/* --- Cards & Panels --- */
.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  margin-bottom: 1.5rem;
  overflow: hidden;
}

.card-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: #ffffff;
}

.card-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-main);
}

.card-body {
  padding: 1.5rem;
}

/* --- KPI Stat Grid --- */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}

.kpi-card {
  background-color: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 1.25rem;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.kpi-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background-color: var(--primary);
}

.kpi-card.success::before { background-color: var(--success); }
.kpi-card.warning::before { background-color: var(--warning); }
.kpi-card.danger::before { background-color: var(--danger); }
.kpi-card.info::before { background-color: var(--info); }

.kpi-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--primary-light);
  color: var(--primary);
}

.kpi-card.success .kpi-icon { background-color: var(--success-light); color: var(--success); }
.kpi-card.warning .kpi-icon { background-color: var(--warning-light); color: var(--warning); }
.kpi-card.danger .kpi-icon { background-color: var(--danger-light); color: var(--danger); }
.kpi-card.info .kpi-icon { background-color: var(--info-light); color: var(--info); }

.kpi-data {
  display: flex;
  flex-direction: column;
}

.kpi-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.kpi-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-main);
  margin-top: 2px;
}

/* --- Tables --- */
.table-responsive {
  width: 100%;
  overflow-x: auto;
}

table.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

table.data-table th {
  background-color: #f8fafc;
  padding: 0.85rem 1rem;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-color);
}

table.data-table td {
  padding: 0.9rem 1rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-main);
}

table.data-table tbody tr:hover {
  background-color: #f1f5f9;
}

/* --- Badges --- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.25rem 0.65rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: capitalize;
}

.badge-success { background-color: var(--success-light); color: #065f46; }
.badge-warning { background-color: var(--warning-light); color: #92400e; }
.badge-danger { background-color: var(--danger-light); color: #991b1b; }
.badge-info { background-color: var(--info-light); color: #3730a3; }
.badge-secondary { background-color: #e2e8f0; color: #475569; }

/* --- Forms & Controls --- */
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 1rem;
}

.form-group label {
  font-weight: 600;
  font-size: 0.825rem;
  color: var(--text-main);
}

.form-control, .form-select {
  width: 100%;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  font-family: var(--font-family);
  font-size: 0.9rem;
  color: var(--text-main);
  background-color: #ffffff;
  outline: none;
  transition: all 0.2s ease;
}

.form-control:focus, .form-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.15);
}

textarea.form-control {
  resize: vertical;
  min-height: 80px;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.6rem 1.2rem;
  border-radius: var(--radius);
  font-family: var(--font-family);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: all 0.2s ease;
}

.btn-primary {
  background-color: var(--primary);
  color: #ffffff;
}
.btn-primary:hover { background-color: var(--primary-hover); }

.btn-success {
  background-color: var(--success);
  color: #ffffff;
}
.btn-success:hover { background-color: #059669; }

.btn-danger {
  background-color: var(--danger);
  color: #ffffff;
}
.btn-danger:hover { background-color: #dc2626; }

.btn-secondary {
  background-color: #e2e8f0;
  color: var(--text-main);
}
.btn-secondary:hover { background-color: #cbd5e1; }

.btn-sm {
  padding: 0.35rem 0.75rem;
  font-size: 0.8rem;
}

/* --- Alerts & Flash --- */
.alert {
  padding: 0.9rem 1.25rem;
  border-radius: var(--radius);
  margin-bottom: 1.5rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.alert-success { background-color: var(--success-light); color: #065f46; border: 1px solid #a7f3d0; }
.alert-error { background-color: var(--danger-light); color: #991b1b; border: 1px solid #fecaca; }

/* Responsive */
@media (max-width: 768px) {
  .app-wrapper { flex-direction: column; }
  aside.sidebar { width: 100%; }
  .kpi-grid { grid-template-columns: 1fr; }
}