/* ============================================================================
   SISTEMA DE DISEÑO - Plantilla de herramienta interna
   Inspirado en Power BI / Tabler / Metronic: paneles densos en datos,
   sidebar oscuro, superficie clara, un solo acento de color.
   ============================================================================ */

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

:root {
  /* Color */
  --color-bg: #F3F4F9;
  --color-surface: #FFFFFF;
  --color-sidebar: #14163A;
  --color-sidebar-hover: #1E2160;
  --color-sidebar-text: #B6B8D9;
  --color-sidebar-text-active: #FFFFFF;
  --color-primary: #4F46E5;
  --color-primary-dark: #3F37C9;
  --color-accent: #14B8A6;
  --color-text: #1B1D2A;
  --color-text-muted: #6B7080;
  --color-border: #E4E6EF;
  --color-success: #16A34A;
  --color-success-bg: #EAFBF1;
  --color-warning: #D97706;
  --color-warning-bg: #FEF6E7;
  --color-danger: #DC2626;
  --color-danger-bg: #FDECEC;
  --color-info: #0284C7;
  --color-info-bg: #E8F5FC;

  /* Tipografía */
  --font-ui: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;

  /* Layout */
  --sidebar-width: 264px;
  --sidebar-width-collapsed: 76px;
  --topbar-height: 64px;
  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 2px rgba(20, 22, 58, 0.06);
  --shadow-md: 0 4px 16px rgba(20, 22, 58, 0.08);
  --transition: 180ms cubic-bezier(0.4, 0, 0.2, 1);
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-ui);
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 { margin: 0; font-weight: 700; letter-spacing: -0.01em; }
p { margin: 0; }
a { color: var(--color-primary); text-decoration: none; }

.font-mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }

/* Foco visible para accesibilidad de teclado */
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}

/* ============================================================================
   PANTALLA DE LOGIN
   ============================================================================ */

.login-page {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr;
  place-items: center;
  background:
    radial-gradient(circle at 15% 20%, rgba(79, 70, 229, 0.35), transparent 45%),
    radial-gradient(circle at 85% 80%, rgba(20, 184, 166, 0.25), transparent 45%),
    var(--color-sidebar);
  padding: 24px;
}

.login-card {
  width: 100%;
  max-width: 380px;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 40px 32px;
}

.login-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 28px;
}

.login-brand-mark {
  width: 36px; height: 36px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 700; font-size: 15px;
}

.login-brand-name { font-size: 16px; font-weight: 700; }
.login-brand-sub { font-size: 12px; color: var(--color-text-muted); }

.login-title { font-size: 20px; margin-bottom: 4px; }
.login-subtitle { color: var(--color-text-muted); font-size: 13px; margin-bottom: 24px; }

.form-group { margin-bottom: 16px; }

.form-label {
  display: block;
  font-size: 12.5px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--color-text);
}

.form-control {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-ui);
  font-size: 14px;
  background: var(--color-surface);
  color: var(--color-text);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-control:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.12);
  outline: none;
}

.input-password-wrap { position: relative; }
.input-password-wrap .form-control { padding-right: 40px; }

.btn-toggle-password {
  position: absolute;
  right: 6px; top: 50%; transform: translateY(-50%);
  border: none; background: none; cursor: pointer;
  color: var(--color-text-muted);
  padding: 6px;
  border-radius: var(--radius-sm);
}
.btn-toggle-password:hover { background: var(--color-bg); }

.form-check { display: flex; align-items: center; gap: 8px; margin-bottom: 20px; }
.form-check input { width: 16px; height: 16px; accent-color: var(--color-primary); }
.form-check label { font-size: 13px; color: var(--color-text-muted); }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: none; border-radius: var(--radius-sm);
  font-family: var(--font-ui); font-weight: 600; font-size: 14px;
  padding: 10px 16px; cursor: pointer;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}
.btn:active { transform: translateY(1px); }
.btn-block { width: 100%; }

.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-dark); }
.btn-primary:disabled { opacity: 0.6; cursor: not-allowed; }

.btn-secondary { background: var(--color-bg); color: var(--color-text); border: 1px solid var(--color-border); }
.btn-secondary:hover { background: #E9EAF4; }

.btn-danger { background: var(--color-danger-bg); color: var(--color-danger); }
.btn-danger:hover { background: #FADADA; }

.btn-icon { padding: 8px; }

.alert {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 10px 12px; border-radius: var(--radius-sm);
  font-size: 13px; margin-bottom: 16px;
}
.alert-danger { background: var(--color-danger-bg); color: var(--color-danger); }
.alert-success { background: var(--color-success-bg); color: var(--color-success); }
.alert-warning { background: var(--color-warning-bg); color: var(--color-warning); }
.alert-info { background: var(--color-info-bg); color: var(--color-info); }

/* ============================================================================
   LAYOUT PRINCIPAL (post-login)
   ============================================================================ */

.app-shell {
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr;
  min-height: 100vh;
  transition: grid-template-columns var(--transition);
}
.app-shell.sidebar-collapsed { grid-template-columns: var(--sidebar-width-collapsed) 1fr; }

/* Sidebar */
.sidebar {
  background: var(--color-sidebar);
  color: var(--color-sidebar-text);
  display: flex; flex-direction: column;
  position: sticky; top: 0; height: 100vh;
  overflow: hidden;
}

.sidebar-header {
  display: flex; align-items: center; gap: 10px;
  padding: 18px 20px;
  min-height: var(--topbar-height);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  white-space: nowrap;
}

.sidebar-nav { flex: 1; overflow-y: auto; padding: 12px 10px; }
.sidebar-section-label {
  font-size: 10.5px; text-transform: uppercase; letter-spacing: 0.08em;
  color: rgba(182, 184, 217, 0.55); padding: 14px 12px 6px;
  white-space: nowrap;
}

.nav-item {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 12px; border-radius: var(--radius-sm);
  color: var(--color-sidebar-text);
  cursor: pointer; font-size: 13.5px; font-weight: 500;
  margin-bottom: 2px; white-space: nowrap;
  border: none; background: none; width: 100%; text-align: left;
  transition: background var(--transition), color var(--transition);
}
.nav-item svg { flex-shrink: 0; width: 18px; height: 18px; }
.nav-item:hover { background: var(--color-sidebar-hover); color: var(--color-sidebar-text-active); }
.nav-item.active {
  background: var(--color-primary);
  color: #fff;
}

.sidebar-collapsed .sidebar-section-label,
.sidebar-collapsed .nav-item span,
.sidebar-collapsed .sidebar-brand-text { display: none; }

.sidebar-footer {
  padding: 14px 16px; border-top: 1px solid rgba(255,255,255,0.08);
  display: flex; align-items: center; gap: 10px;
}
.avatar {
  width: 32px; height: 32px; border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 700; font-size: 12.5px; flex-shrink: 0;
}
.sidebar-collapsed .user-meta { display: none; }
.user-meta { overflow: hidden; }
.user-name { font-size: 12.5px; font-weight: 600; color: #fff; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-role { font-size: 11px; color: rgba(182, 184, 217, 0.7); }

/* Topbar */
.topbar {
  height: var(--topbar-height);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 24px; position: sticky; top: 0; z-index: 10;
}
.topbar-title { font-size: 16px; font-weight: 700; }
.topbar-actions { display: flex; align-items: center; gap: 12px; }

.btn-plain {
  background: none; border: none; cursor: pointer;
  color: var(--color-text-muted); padding: 8px; border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
}
.btn-plain:hover { background: var(--color-bg); color: var(--color-text); }

.main-content { padding: 24px; max-width: 1400px; }

.view { display: none; }
.view.active { display: block; }

/* ============================================================================
   COMPONENTES: KPI, CARDS, TABLAS, MODALES
   ============================================================================ */

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.kpi-card { padding: 18px 20px; position: relative; overflow: hidden; }
.kpi-card::before {
  content: '';
  position: absolute; left: 0; top: 0; bottom: 0; width: 4px;
  background: var(--kpi-accent, var(--color-primary));
}
.kpi-label { font-size: 12px; color: var(--color-text-muted); font-weight: 600; margin-bottom: 8px; }
.kpi-value { font-size: 26px; font-weight: 700; font-family: var(--font-mono); }
.kpi-trend { font-size: 12px; margin-top: 6px; color: var(--color-text-muted); }

.grid-2col { display: grid; grid-template-columns: 1.4fr 1fr; gap: 16px; margin-bottom: 24px; }

.card-header {
  padding: 16px 20px; border-bottom: 1px solid var(--color-border);
  display: flex; align-items: center; justify-content: space-between;
}
.card-header h3 { font-size: 14.5px; }
.card-body { padding: 20px; }

.table-toolbar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; margin-bottom: 14px; flex-wrap: wrap;
}
.table-search { position: relative; max-width: 280px; flex: 1; }
.table-search input { padding-left: 34px; }
.table-search svg { position: absolute; left: 10px; top: 50%; transform: translateY(-50%); color: var(--color-text-muted); }

table.data-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.data-table thead th {
  text-align: left; padding: 10px 12px; font-size: 11.5px;
  text-transform: uppercase; letter-spacing: 0.04em;
  color: var(--color-text-muted); border-bottom: 1px solid var(--color-border);
  cursor: pointer; white-space: nowrap; user-select: none;
}
.data-table thead th:hover { color: var(--color-text); }
.data-table tbody td { padding: 11px 12px; border-bottom: 1px solid var(--color-border); }
.data-table tbody tr:hover { background: var(--color-bg); }

.badge {
  display: inline-flex; align-items: center; padding: 3px 9px;
  border-radius: 999px; font-size: 11.5px; font-weight: 600;
}
.badge-pendiente { background: var(--color-warning-bg); color: var(--color-warning); }
.badge-proceso { background: var(--color-info-bg); color: var(--color-info); }
.badge-completado { background: var(--color-success-bg); color: var(--color-success); }

.table-actions { display: flex; gap: 4px; }

.pagination { display: flex; align-items: center; justify-content: space-between; margin-top: 14px; font-size: 12.5px; color: var(--color-text-muted); }
.pagination-buttons { display: flex; gap: 4px; }
.pagination-buttons button {
  border: 1px solid var(--color-border); background: var(--color-surface);
  border-radius: var(--radius-sm); padding: 5px 10px; cursor: pointer; font-size: 12.5px;
}
.pagination-buttons button.active { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.pagination-buttons button:disabled { opacity: 0.4; cursor: not-allowed; }

/* Modal */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(20, 22, 58, 0.45);
  display: none; align-items: center; justify-content: center; z-index: 100; padding: 20px;
}
.modal-overlay.active { display: flex; }
.modal {
  background: var(--color-surface); border-radius: var(--radius-lg);
  width: 100%; max-width: 480px; box-shadow: var(--shadow-md);
  max-height: 90vh; overflow-y: auto;
}
.modal-header { padding: 18px 22px; border-bottom: 1px solid var(--color-border); display: flex; justify-content: space-between; align-items: center; }
.modal-header h3 { font-size: 15px; }
.modal-body { padding: 20px 22px; }
.modal-footer { padding: 16px 22px; border-top: 1px solid var(--color-border); display: flex; justify-content: flex-end; gap: 10px; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

/* Toasts */
.toast-container { position: fixed; bottom: 20px; right: 20px; z-index: 200; display: flex; flex-direction: column; gap: 10px; }
.toast {
  background: var(--color-surface); border-left: 4px solid var(--color-primary);
  box-shadow: var(--shadow-md); border-radius: var(--radius-sm);
  padding: 12px 16px; font-size: 13px; min-width: 260px;
  animation: toast-in 200ms ease-out;
}
.toast-success { border-left-color: var(--color-success); }
.toast-danger { border-left-color: var(--color-danger); }
.toast-warning { border-left-color: var(--color-warning); }
@keyframes toast-in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

/* Loading */
.loading-overlay {
  position: fixed; inset: 0; background: rgba(255,255,255,0.7);
  display: none; align-items: center; justify-content: center; z-index: 300;
}
.loading-overlay.active { display: flex; }

/* Indicador sutil de "actualizando en segundo plano" (no bloquea la UI) */
.refresh-indicator {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 11.5px; font-weight: 500; color: var(--color-text-muted);
  margin-left: 10px; vertical-align: middle;
}
.spinner-sm {
  width: 12px; height: 12px; border-radius: 50%;
  border: 2px solid var(--color-border); border-top-color: var(--color-primary);
  animation: spin 700ms linear infinite; display: inline-block;
}

.btn-plain.spinning svg { animation: spin 800ms linear infinite; }
.btn-plain:disabled { opacity: 0.55; cursor: not-allowed; }
.spinner {
  width: 34px; height: 34px; border-radius: 50%;
  border: 3px solid var(--color-border); border-top-color: var(--color-primary);
  animation: spin 700ms linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.empty-state { text-align: center; padding: 40px 20px; color: var(--color-text-muted); }
.empty-state svg { margin-bottom: 10px; opacity: 0.5; }

/* Sub-pestañas dentro de Configuración */
.subtab-btn {
  padding: 8px 16px; border-radius: 999px; border: 1px solid var(--color-border);
  background: var(--color-surface); font-size: 13px; font-weight: 600;
  cursor: pointer; color: var(--color-text-muted); transition: background var(--transition), color var(--transition);
}
.subtab-btn:hover { background: var(--color-bg); }
.subtab-btn.active { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.subview { display: none; }
.subview.active { display: block; }

/* Matriz de permisos (Configuración > Permisos) */
.matriz-permisos-row {
  display: grid; grid-template-columns: 160px repeat(4, 1fr); align-items: center;
  padding: 10px 4px; border-bottom: 1px solid var(--color-border); font-size: 13px;
}
.matriz-permisos-row.header {
  font-weight: 600; color: var(--color-text-muted); font-size: 11px;
  text-transform: uppercase; letter-spacing: 0.04em;
}
.matriz-permisos-row input[type="checkbox"] { width: 16px; height: 16px; accent-color: var(--color-primary); }

@media (max-width: 480px) {
  .matriz-permisos-row { grid-template-columns: 110px repeat(4, 1fr); font-size: 12px; }
}

/* Responsive */
@media (max-width: 1024px) {
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
  .grid-2col { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar {
    position: fixed; z-index: 50; left: 0; top: 0;
    width: var(--sidebar-width);
    transform: translateX(-100%);
    transition: transform var(--transition);
  }
  .app-shell.mobile-open .sidebar { transform: translateX(0); }
  .kpi-grid { grid-template-columns: 1fr 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .main-content { padding: 16px; }
}

@media (max-width: 480px) {
  .kpi-grid { grid-template-columns: 1fr; }
}

/* ==========================================================================
   CAPA VISUAL MODERNA (override final)
   ========================================================================= */

:root {
  --color-bg: #F5F7FB;
  --color-surface: #FFFFFF;
  --color-sidebar: #0F172A;
  --color-sidebar-hover: rgba(255,255,255,0.08);
  --color-sidebar-text: #94A3B8;
  --color-sidebar-text-active: #FFFFFF;
  --color-primary: #2563EB;
  --color-primary-dark: #1D4ED8;
  --color-accent: #14B8A6;
  --color-text: #0F172A;
  --color-text-muted: #64748B;
  --color-border: #E2E8F0;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 12px 30px rgba(15, 23, 42, 0.10);
}

body {
  background:
    radial-gradient(circle at 10% 10%, rgba(37, 99, 235, 0.08), transparent 28%),
    radial-gradient(circle at 90% 0%, rgba(20, 184, 166, 0.08), transparent 24%),
    var(--color-bg);
}

body.sidebar-open {
  overflow: hidden;
}

.app-shell {
  position: relative;
}

.sidebar {
  border-right: 1px solid rgba(255,255,255,0.06);
  box-shadow: 8px 0 30px rgba(15, 23, 42, 0.16);
  background:
    linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.00)),
    var(--color-sidebar);
}

.sidebar-header {
  padding: 18px 18px 16px;
  gap: 12px;
}

.sidebar-header .login-brand-mark,
.avatar,
.kpi-card::before {
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.18);
}

.sidebar-brand-text {
  letter-spacing: 0.01em;
}

.sidebar-section-label {
  color: rgba(148, 163, 184, 0.7);
  padding-top: 16px;
}

.nav-item {
  border: 1px solid transparent;
  padding: 12px 14px;
  margin: 4px 4px 2px;
  border-radius: 14px;
  transition: transform var(--transition), background var(--transition), border-color var(--transition), color var(--transition), box-shadow var(--transition);
}

.nav-item:hover {
  background: rgba(255,255,255,0.08);
  transform: translateX(2px);
}

.nav-item.active {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.95), rgba(20, 184, 166, 0.88));
  box-shadow: 0 14px 30px rgba(37, 99, 235, 0.24);
  border-color: rgba(255,255,255,0.12);
}

.ui-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.ui-icon-inline {
  width: 32px;
  height: 32px;
  display: inline-block;
  vertical-align: middle;
}

.topbar {
  backdrop-filter: blur(18px);
  background: rgba(255,255,255,0.82);
  border-bottom: 1px solid rgba(226, 232, 240, 0.92);
}

.topbar-title {
  font-size: 18px;
  letter-spacing: -0.02em;
}

.btn-plain {
  transition: transform var(--transition), background var(--transition), color var(--transition), box-shadow var(--transition);
}

.btn-plain:hover {
  background: rgba(37, 99, 235, 0.08);
  color: var(--color-primary-dark);
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), #1D4ED8);
  box-shadow: 0 10px 20px rgba(37, 99, 235, 0.20);
}

.btn-secondary {
  background: #F8FAFC;
}

.card,
.login-card,
.modal {
  box-shadow: var(--shadow-md);
  border-color: rgba(226, 232, 240, 0.9);
}

.card-header {
  background: linear-gradient(180deg, rgba(248,250,252,0.85), rgba(255,255,255,0));
}

.kpi-card {
  border-radius: 18px;
}

.kpi-card--notice {
  min-height: 160px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  text-align: center;
}

.restricted-state {
  padding: 28px 18px;
  border: 1px dashed var(--color-border);
  border-radius: 16px;
  background: #F8FAFC;
}

.restricted-state strong {
  display: block;
  margin-bottom: 6px;
  font-size: 14px;
  color: var(--color-text);
}

.restricted-state p {
  color: var(--color-text-muted);
  margin: 0;
}

.modal-overlay {
  background: rgba(15, 23, 42, 0.56);
  backdrop-filter: blur(4px);
}

.sidebar-backdrop {
  display: none;
}

.empty-state {
  color: var(--color-text-muted);
}

.matriz-permisos-row {
  grid-template-columns: 180px repeat(5, minmax(64px, 1fr));
}

.matriz-permisos-row.header {
  background: #F8FAFC;
  border-radius: 12px 12px 0 0;
}

.matriz-permisos-row input[type="checkbox"] {
  width: 17px;
  height: 17px;
}

.sidebar-footer {
  background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.05));
}

.avatar {
  box-shadow: 0 10px 24px rgba(20, 184, 166, 0.24);
}

@media (max-width: 768px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    width: min(86vw, 320px);
    transform: translateX(-104%);
    border-right: 1px solid rgba(255,255,255,0.08);
  }

  .app-shell.mobile-open .sidebar {
    transform: translateX(0);
  }

  .sidebar-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.38);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition);
    z-index: 40;
  }

  body.sidebar-open .sidebar-backdrop,
  .app-shell.mobile-open .sidebar-backdrop {
    opacity: 1;
    pointer-events: auto;
  }

  .topbar {
    padding: 0 16px;
  }

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

@media (max-width: 480px) {
  .topbar-title {
    font-size: 16px;
  }

  .matriz-permisos-row {
    grid-template-columns: 132px repeat(5, minmax(52px, 1fr));
    font-size: 11.5px;
  }
}