:root {
  --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

  --color-bg: oklch(0.955 0.004 240);
  --color-surface: #ffffff;
  --color-surface-muted: oklch(0.975 0.004 240);
  --color-border: oklch(0.91 0.007 240);
  --color-text: oklch(0.24 0.02 240);
  --color-text-muted: oklch(0.5 0.015 240);
  --color-text-aux: oklch(0.62 0.012 240);

  --color-accent: oklch(0.52 0.09 195);
  --color-accent-hover: oklch(0.44 0.09 195);
  --color-accent-soft: oklch(0.52 0.09 195 / .12);

  --color-success: oklch(0.5 0.11 155);
  --color-success-soft-bg: oklch(0.95 0.05 155);
  --color-success-soft-fg: oklch(0.42 0.11 155);
  --color-warning: oklch(0.55 0.12 60);
  --color-warning-soft-bg: oklch(0.96 0.06 75);
  --color-warning-soft-fg: oklch(0.46 0.11 60);
  --color-danger: oklch(0.57 0.17 25);
  --color-danger-soft-bg: oklch(0.95 0.06 25);
  --color-danger-soft-fg: oklch(0.48 0.15 25);

  --color-sidebar-bg: #ffffff;
  --color-sidebar-text: oklch(0.4 0.015 240);
  --color-sidebar-icon: oklch(0.55 0.015 240);
  --color-sidebar-border: var(--color-border);
  --color-sidebar-hover: oklch(0.97 0.004 240);
  --color-sidebar-active-bg: oklch(0.96 0.025 195);
  --color-sidebar-active-text: oklch(0.4 0.09 195);
}

html[data-theme="dark"] {
  --color-bg: #10171a;
  --color-surface: #182124;
  --color-surface-muted: #1d282b;
  --color-border: #2b3a3e;
  --color-text: #e6edec;
  --color-text-muted: #93a3a4;
  --color-text-aux: #7c8d8e;

  --color-accent: oklch(0.66 0.1 195);
  --color-accent-hover: oklch(0.74 0.1 195);
  --color-accent-soft: oklch(0.66 0.1 195 / .18);

  --color-sidebar-bg: #0c1315;
  --color-sidebar-text: #a9b8b9;
  --color-sidebar-icon: #8a9c9d;
  --color-sidebar-border: var(--color-border);
  --color-sidebar-hover: rgba(255, 255, 255, .05);
  --color-sidebar-active-bg: oklch(0.66 0.1 195 / .16);
  --color-sidebar-active-text: #eaf6f6;
}

html {
  font-size: 15px;
  font-family: var(--font-sans);
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
}

h1, h2, h3, h4, h5, h6,
.modal-title {
  font-weight: 700;
  letter-spacing: -.015em;
}

.font-mono,
.text-cifra {
  font-family: var(--font-mono);
  letter-spacing: -.01em;
}

.validation-summary-valid {
  display: none;
}

hr {
  border-color: var(--color-border);
  opacity: .6;
}

/* ---------- Botón / marca de acento ---------- */
.btn {
  border-radius: 8px;
  font-weight: 600;
}

.btn-primary {
  color: #fff;
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  box-shadow: 0 1px 2px oklch(0.24 0.02 240 / .12);
}

.btn-primary:hover,
.btn-check:focus + .btn-primary,
.btn-primary:focus {
  color: #fff;
  background-color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
}

.btn-outline-primary {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.btn-outline-primary:hover {
  color: #fff;
  background-color: var(--color-accent);
  border-color: var(--color-accent);
}

.btn-success {
  background-color: var(--color-success);
  border-color: var(--color-success);
}

.btn-danger,
.btn-outline-danger:hover {
  background-color: var(--color-danger);
  border-color: var(--color-danger);
}

.btn-outline-danger {
  color: var(--color-danger);
  border-color: var(--color-danger);
}

a {
  color: var(--color-accent);
}

/* ---------- Layout ---------- */
.app-shell {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 220px;
  flex-shrink: 0;
  background: var(--color-sidebar-bg);
  color: var(--color-sidebar-text);
  border-right: 1px solid var(--color-sidebar-border);
  display: flex;
  flex-direction: column;
  transition: width .2s ease;
  overflow-x: hidden;
}

/* Colapsado: no se oculta, se reduce a un riel angosto que solo muestra los íconos. */
.sidebar.collapsed {
  width: 64px;
}

.sidebar.collapsed .sidebar-brand span,
.sidebar.collapsed .nav-section-title,
.sidebar.collapsed .nav-link span,
.sidebar.collapsed .submenu-caret {
  display: none;
}

.sidebar.collapsed .nav-link {
  justify-content: center;
  padding-left: 0;
  padding-right: 0;
}

.sidebar.collapsed .collapse {
  display: none !important;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: .6rem;
  padding: 1.1rem 1.25rem;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-sidebar-border);
}

.sidebar-brand i {
  width: 26px;
  height: 26px;
  border-radius: 7px;
  background: var(--color-accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .85rem;
}

.sidebar-nav {
  padding: .75rem 0;
  overflow-y: auto;
}

.nav-section-title {
  text-transform: uppercase;
  font-size: .68rem;
  font-family: var(--font-mono);
  letter-spacing: .08em;
  color: var(--color-text-aux);
  padding: 1rem 1.25rem .35rem;
}

.sidebar-nav .nav-link {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .5rem 1.1rem;
  margin: 0 .5rem;
  border-radius: 8px;
  color: var(--color-sidebar-text);
  border-left: none;
  font-size: .92rem;
  font-weight: 500;
}

.sidebar-nav .nav-link i {
  width: 1.1rem;
  text-align: center;
  color: var(--color-sidebar-icon);
}

.sidebar-nav .nav-link:hover {
  background: var(--color-sidebar-hover);
  color: var(--color-text);
}

.sidebar-nav .nav-link.active {
  background: var(--color-sidebar-active-bg);
  color: var(--color-sidebar-active-text);
  font-weight: 600;
}

.sidebar-nav .nav-link.active i {
  color: var(--color-sidebar-active-text);
}

.sidebar-nav .submenu-caret {
  width: auto;
  font-size: .7rem;
  color: var(--color-text-aux);
  transition: transform .2s ease;
}

.sidebar-nav .nav-link-toggle[aria-expanded="true"] .submenu-caret {
  transform: rotate(180deg);
}

.sidebar-nav .nav-sublink {
  padding-left: 2.6rem;
  font-size: .88rem;
}

.sidebar-nav .nav-sublink2 {
  padding-left: 3.75rem;
  font-size: .85rem;
}

.app-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.topbar {
  display: flex;
  align-items: center;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: .6rem 1.25rem;
  color: var(--color-text);
}

.topbar .btn-link.text-dark {
  color: var(--color-text-muted) !important;
}

.content-area {
  padding: 1.5rem;
}

@media (max-width: 767.98px) {
  .sidebar {
    position: fixed;
    z-index: 1040;
    height: 100vh;
    margin-left: -220px;
  }

  .sidebar.show {
    margin-left: 0;
  }
}

/* ---------- Utilidades de módulos CRUD ---------- */
.card,
.card-modulo {
  background-color: var(--color-surface);
  border-color: var(--color-border);
  color: var(--color-text);
  border-radius: 10px;
}

.card-modulo .card-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  font-weight: 600;
}

table.dataTable {
  width: 100% !important;
}

.table {
  color: var(--color-text);
  border-color: var(--color-border);
}

.table > :not(caption) > * > * {
  background-color: transparent;
  border-bottom-color: var(--color-border);
  color: var(--color-text);
}

.table thead th {
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--color-text-aux);
  background: var(--color-surface-muted);
  border-bottom: 1px solid var(--color-border);
}

.table-hover > tbody > tr:hover > * {
  background-color: var(--color-surface-muted);
}

.kpi-card {
  border-radius: 10px;
  border: 1px solid var(--color-border);
  background-color: var(--color-surface);
}

.kpi-icon {
  width: 3rem;
  height: 3rem;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  /* El color real lo pone la utilidad text-* de Bootstrap (text-primary, text-success, etc.)
     de cada tarjeta; aquí solo se deriva un fondo tenue a partir de ese mismo color. */
  background: color-mix(in srgb, currentColor 15%, transparent);
}

.fs-4.fw-semibold {
  font-family: var(--font-mono);
  letter-spacing: -.02em;
}

.list-group-item {
  background-color: var(--color-surface);
  border-color: var(--color-border);
  color: var(--color-text);
}

.list-group-item-action:hover,
.list-group-item-action:focus {
  background-color: var(--color-surface-muted);
  color: var(--color-text);
}

.text-muted {
  color: var(--color-text-muted) !important;
}

.border {
  border-color: var(--color-border) !important;
}

.form-control,
.form-select {
  background-color: var(--color-surface);
  border-color: var(--color-border);
  color: var(--color-text);
  border-radius: 7px;
}

.form-control:focus,
.form-select:focus {
  background-color: var(--color-surface);
  color: var(--color-text);
  border-color: var(--color-accent);
  box-shadow: 0 0 0 .2rem var(--color-accent-soft);
}

.form-control::placeholder {
  color: var(--color-text-aux);
}

.form-control:disabled,
.form-control[readonly],
.form-select:disabled {
  background-color: var(--color-surface-muted);
  color: var(--color-text-muted);
}

.modal-content {
  background-color: var(--color-surface);
  color: var(--color-text);
  border-radius: 12px;
}

.modal-header,
.modal-footer {
  border-color: var(--color-border);
}

.dataTables_wrapper .dataTables_length,
.dataTables_wrapper .dataTables_filter,
.dataTables_wrapper .dataTables_info,
.dataTables_wrapper .dataTables_paginate {
  color: var(--color-text);
}

.page-link {
  background-color: var(--color-surface);
  border-color: var(--color-border);
  color: var(--color-accent);
}

.page-item.active .page-link {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
}

.page-item.disabled .page-link {
  background-color: var(--color-surface-muted);
  color: var(--color-text-muted);
}

/* ---------- Estados semánticos (badges, texto, alertas) ---------- */
.badge {
  border-radius: 999px;
  font-weight: 600;
}

.text-bg-success,
.badge.text-bg-success {
  background-color: var(--color-success-soft-bg) !important;
  color: var(--color-success-soft-fg) !important;
}

.text-bg-warning,
.badge.text-bg-warning {
  background-color: var(--color-warning-soft-bg) !important;
  color: var(--color-warning-soft-fg) !important;
}

.text-bg-danger,
.badge.text-bg-danger {
  background-color: var(--color-danger-soft-bg) !important;
  color: var(--color-danger-soft-fg) !important;
}

.text-bg-secondary,
.badge.text-bg-secondary {
  background-color: var(--color-surface-muted) !important;
  color: var(--color-text-muted) !important;
}

.text-success { color: var(--color-success) !important; }
.text-warning { color: var(--color-warning) !important; }
.text-danger { color: var(--color-danger) !important; }
.text-primary,
.text-info {
  color: var(--color-accent) !important;
}

.alert-danger {
  background-color: var(--color-danger-soft-bg);
  color: var(--color-danger-soft-fg);
  border-color: color-mix(in srgb, var(--color-danger) 30%, transparent);
}

/* ---------- Login ---------- */
.login-shell {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg);
  padding: 32px;
}

.login-card {
  width: 100%;
  max-width: 920px;
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 1px 3px oklch(0.24 0.02 240 / .06);
}

.login-hero {
  background: oklch(0.28 0.05 200);
  color: #fff;
  padding: 44px 40px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 24px;
}

.login-hero-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1rem;
}

.login-hero-badge {
  width: 28px;
  height: 28px;
  border-radius: 7px;
  background: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-hero-title {
  font-size: 1.7rem;
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: -.02em;
  margin: 0 0 12px;
}

.login-hero-text {
  font-size: .95rem;
  line-height: 1.6;
  color: oklch(0.86 0.02 200);
  margin: 0;
}

.login-hero-footer {
  font-size: .78rem;
  color: oklch(0.72 0.02 200);
}

.login-form-panel {
  padding: 44px 56px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.login-form-title {
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -.02em;
  margin: 0 0 4px;
}

.login-form-subtitle {
  font-size: .9rem;
  color: var(--color-text-muted);
  margin: 0 0 24px;
}

@media (max-width: 767.98px) {
  .login-card {
    grid-template-columns: 1fr;
  }

  .login-hero {
    display: none;
  }
}

/* ---------- Ajustes exclusivos de modo oscuro ---------- */
html[data-theme="dark"] .btn-close {
  filter: invert(1) grayscale(100%) brightness(200%);
}