/* ==========================================================================
   SISTEMA DE DISEÑO - COLEGIO EL PLANET (ALTEA)
   Biblioteca Escolar - biblio.colegioelplanet.com
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700&family=Plus+Jakarta+Sans:wght@400;500;600;700&display=swap');

:root {
  /* Paleta Corporativa Colegio El Planet */
  --planet-blue: #1E4E8C;
  --planet-blue-light: #2B6CB0;
  --planet-blue-soft: #EBF3FC;
  --planet-red: #8C1D24;
  --planet-red-hover: #A31D24;
  --planet-red-soft: #FDE8E9;
  --planet-navy: #0D1E36;
  --planet-navy-surface: #142845;
  --planet-navy-light: #1D3557;

  /* Estados y Semáforo */
  --status-active-bg: #E0F2FE;
  --status-active-text: #0369A1;
  --status-warning-bg: #FEF3C7;
  --status-warning-text: #B45309;
  --status-danger-bg: #FEE2E2;
  --status-danger-text: #B91C1C;
  --status-success-bg: #DCFCE7;
  --status-success-text: #15803D;

  /* Superficies y Neutros */
  --bg-body: #F4F7FB;
  --bg-card: #FFFFFF;
  --bg-card-header: #F8FAFC;
  --bg-input: #FFFFFF;
  --border-color: #E2E8F0;
  --border-focus: #2B6CB0;
  --text-main: #0F172A;
  --text-muted: #64748B;
  --text-light: #94A3B8;

  /* Sombras y Elevaciones */
  --shadow-sm: 0 1px 2px rgba(13, 30, 54, 0.05);
  --shadow-md: 0 4px 12px rgba(13, 30, 54, 0.08);
  --shadow-lg: 0 10px 25px rgba(13, 30, 54, 0.12);

  /* Medidas y Bordes */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  --sidebar-width: 270px;
  --header-height: 70px;
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
}

/* ==========================================================================
   MODO OSCURO (DARK MODE)
   ========================================================================== */
[data-theme="dark"] {
  --planet-navy: #0D1E36;
  --planet-navy-surface: #142845;
  --planet-navy-light: #1D3557;
  --planet-blue: #60A5FA;
  --planet-blue-soft: rgba(30, 78, 140, 0.25);

  --bg-body: #0B1524;
  --bg-card: #132238;
  --bg-card-header: #172A45;
  --bg-input: #172A45;
  --border-color: #203657;
  --border-focus: #4C86B8;
  --text-main: #F1F5F9;
  --text-muted: #94A3B8;
  --text-light: #64748B;

  --status-active-bg: #0C4A6E;
  --status-active-text: #7DD3FC;
  --status-warning-bg: #78350F;
  --status-warning-text: #FDE68A;
  --status-danger-bg: #7F1D1D;
  --status-danger-text: #FECACA;
  --status-success-bg: #064E3B;
  --status-success-text: #A7F3D0;

  --shadow-sm: 0 2px 5px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 6px 18px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 12px 30px rgba(0, 0, 0, 0.5);
}

[data-theme="dark"] h1,
[data-theme="dark"] h2,
[data-theme="dark"] h3,
[data-theme="dark"] h4 {
  color: #FFFFFF !important;
}

[data-theme="dark"] .custom-table th {
  background-color: #172A45;
  color: #CBD5E1;
  border-bottom-color: #203657;
}

[data-theme="dark"] .custom-table td {
  color: #F1F5F9;
  border-bottom-color: #203657;
}

[data-theme="dark"] .custom-table td div {
  color: #F1F5F9;
}

[data-theme="dark"] .custom-table td strong {
  color: #FFFFFF;
}

[data-theme="dark"] .custom-table tr:hover td {
  background-color: rgba(255, 255, 255, 0.05);
}

[data-theme="dark"] .card-container {
  background-color: #132238;
  border-color: #203657;
}

[data-theme="dark"] .card-header-actions {
  background-color: #172A45;
  border-bottom-color: #203657;
}

[data-theme="dark"] .card-title-group h2 {
  color: #FFFFFF;
}

[data-theme="dark"] .card-title-group p {
  color: #94A3B8;
}

[data-theme="dark"] .top-header {
  background-color: #132238;
  border-bottom-color: #203657;
}

[data-theme="dark"] .filter-select,
[data-theme="dark"] .search-input-mini,
[data-theme="dark"] .sort-select,
[data-theme="dark"] .form-group input,
[data-theme="dark"] .form-group select,
[data-theme="dark"] .form-group textarea {
  background-color: #172A45 !important;
  color: #FFFFFF !important;
  border-color: #28446D !important;
}

[data-theme="dark"] .form-group label {
  color: #E2E8F0 !important;
}

[data-theme="dark"] .form-group small {
  color: #94A3B8 !important;
}

[data-theme="dark"] .modal-card {
  background-color: #132238;
  border-color: #203657;
  color: #F8FAFC;
}

[data-theme="dark"] .modal-header,
[data-theme="dark"] .modal-footer {
  background: #172A45;
  border-color: #203657;
}

[data-theme="dark"] .btn-secondary {
  background-color: #172A45;
  color: #F1F5F9;
  border-color: #28446D;
}

[data-theme="dark"] .btn-secondary:hover {
  background-color: #1F3657;
}

[data-theme="dark"] .btn-action {
  background-color: #172A45;
  color: #F1F5F9;
  border-color: #28446D;
}

[data-theme="dark"] .btn-action:hover {
  background-color: #223D66;
}

[data-theme="dark"] .book-card {
  background-color: #132238;
  border-color: #203657;
}

[data-theme="dark"] .book-title {
  color: #FFFFFF;
}

[data-theme="dark"] .book-card-footer {
  background-color: #172A45;
  border-color: #203657;
}


[data-theme="dark"] .role-card-pick {
  background-color: #172A45;
  border-color: #28446D;
}

[data-theme="dark"] .role-card-title {
  color: #F1F5F9;
}

[data-theme="dark"] .alert-banner {
  background: linear-gradient(90deg, #2D1416 0%, #36191C 100%);
  border-color: #5C1E23;
}

[data-theme="dark"] .alert-text h4 {
  color: #FCA5A5;
}

[data-theme="dark"] .alert-text p {
  color: #F87171;
}

[data-theme="dark"] .form-group label {
  color: #E2E8F0;
}

[data-theme="dark"] .form-group small {
  color: #94A3B8;
}

[data-theme="dark"] .user-badge-header {
  background-color: #172A45;
  border-color: #203657;
}

[data-theme="dark"] .user-text-name {
  color: #F1F5F9;
}

[data-theme="dark"] .detail-header-card {
  background-color: #172A45;
  border-color: #203657;
}

[data-theme="dark"] .detail-stat-box {
  background-color: #172A45;
  border-color: #203657;
}

[data-theme="dark"] .btn-pill-action {
  background-color: #132238;
  color: #E2E8F0;
  border-color: #203657;
}

[data-theme="dark"] .selected-entity-chip {
  background-color: #172A45;
  border-color: #2B6CB0;
  color: #F1F5F9;
}

/* Enlaces y Títulos de Entidades Clicables */
.entity-title-clickable {
  font-weight: 700;
  color: var(--planet-navy);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: color var(--transition-fast);
}

.entity-title-clickable:hover {
  color: var(--planet-blue);
  text-decoration: underline;
}

[data-theme="dark"] .entity-title-clickable {
  color: #60A5FA !important;
}

[data-theme="dark"] .entity-title-clickable:hover {
  color: #93C5FD !important;
}

.subheading-title {
  color: var(--planet-navy);
  font-weight: 700;
}

[data-theme="dark"] .subheading-title {
  color: #F8FAFC !important;
}

/* Ficha y Modales en Modo Oscuro */
.detail-student-name {
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--planet-navy);
}

[data-theme="dark"] .detail-student-name {
  color: #FFFFFF !important;
}

.detail-notes-card {
  margin-bottom: 16px;
  padding: 12px 16px;
  background: var(--planet-blue-soft);
  border-radius: 8px;
  font-size: 0.86rem;
  color: var(--planet-navy);
  border-left: 4px solid var(--planet-blue);
}

[data-theme="dark"] .detail-notes-card {
  background: rgba(30, 78, 140, 0.25) !important;
  color: #F1F5F9 !important;
  border-left-color: #60A5FA !important;
}

.loan-item-box {
  padding: 10px 14px;
  background: var(--bg-body);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

[data-theme="dark"] .loan-item-box {
  background: #172A45 !important;
  border-color: #203657 !important;
}

/* Insignias de Rol de Usuario */
.role-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.role-badge.secretaria {
  background-color: var(--planet-blue-soft);
  color: var(--planet-blue);
  border: 1px solid rgba(30, 78, 140, 0.2);
}

.role-badge.direccion {
  background-color: var(--planet-red-soft);
  color: var(--planet-red);
  border: 1px solid rgba(140, 29, 36, 0.2);
}

.role-badge.profesor {
  background-color: #DCFCE7;
  color: #15803D;
  border: 1px solid rgba(21, 128, 61, 0.2);
}

.role-badge.alumno {
  background-color: #FEF3C7;
  color: #B45309;
  border: 1px solid rgba(180, 83, 9, 0.2);
}

[data-theme="dark"] .role-badge.secretaria {
  background-color: rgba(30, 78, 140, 0.35) !important;
  color: #93C5FD !important;
  border-color: rgba(96, 165, 250, 0.3) !important;
}

[data-theme="dark"] .role-badge.direccion {
  background-color: rgba(140, 29, 36, 0.35) !important;
  color: #FCA5A5 !important;
  border-color: rgba(248, 113, 113, 0.3) !important;
}

[data-theme="dark"] .role-badge.profesor {
  background-color: rgba(6, 78, 59, 0.4) !important;
  color: #6EE7B7 !important;
  border-color: rgba(110, 231, 183, 0.3) !important;
}

[data-theme="dark"] .role-badge.alumno {
  background-color: rgba(120, 53, 15, 0.4) !important;
  color: #FCD34D !important;
  border-color: rgba(252, 211, 77, 0.3) !important;
}



/* Reset y Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--bg-body);
  color: var(--text-main);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  overflow-x: hidden;
}

h1, h2, h3, h4, .font-heading {
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
  color: var(--planet-navy);
}

a {
  color: inherit;
  text-decoration: none;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: 1rem;
}

/* ==========================================================================
   LAYOUT PRINCIPAL
   ========================================================================== */

.app-container {
  display: flex;
  min-height: 100vh;
  position: relative;
}

/* ----------------- BARRA LATERAL (SIDEBAR) ----------------- */
.sidebar {
  width: var(--sidebar-width);
  background: linear-gradient(180deg, #091526 0%, #0D1E36 55%, #112542 100%);
  color: #FFFFFF;
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 1000;
  transition: transform var(--transition-normal);
  box-shadow: 4px 0 20px rgba(0, 0, 0, 0.25);
  border-right: 1px solid rgba(255, 255, 255, 0.08);
}

.sidebar-header {
  padding: 24px 20px 20px 20px;
  display: flex;
  align-items: center;
  gap: 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.school-logo-wrap {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background-color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px rgba(0,0,0,0.25);
  flex-shrink: 0;
  overflow: hidden;
  border: 2px solid #FFFFFF;
}

.school-logo-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.school-brand h2 {
  font-size: 1.15rem;
  color: #FFFFFF;
  letter-spacing: -0.2px;
  line-height: 1.2;
}

.school-brand span {
  font-size: 0.78rem;
  color: #94A3B8;
  display: block;
  font-weight: 500;
}

.sidebar-role-card {
  margin: 16px 16px 8px 16px;
  padding: 12px 14px;
  background-color: rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.role-tag {
  font-size: 0.72rem;
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: #60A5FA;
}

.role-name {
  font-size: 0.92rem;
  font-weight: 600;
  color: #FFFFFF;
}

.btn-change-role-mini {
  background: rgba(255, 255, 255, 0.12);
  border: none;
  color: #FFFFFF;
  padding: 5px 9px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.btn-change-role-mini:hover {
  background: var(--planet-red);
}

/* Navegación Lateral */
.sidebar-nav {
  flex: 1;
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  overflow-y: auto;
}

.nav-section-title {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: #64748B;
  padding: 10px 12px 4px 12px;
  font-weight: 700;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 14px;
  color: #CBD5E1;
  border-radius: var(--radius-md);
  font-weight: 500;
  font-size: 0.93rem;
  transition: all var(--transition-fast);
  cursor: pointer;
  border: none;
  background: transparent;
  width: 100%;
  text-align: left;
}

.nav-item svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  stroke: #94A3B8;
  transition: stroke var(--transition-fast);
}

.nav-item:hover {
  color: #FFFFFF;
  background-color: rgba(255, 255, 255, 0.08);
}

.nav-item:hover svg {
  stroke: #FFFFFF;
}

.nav-item.active {
  color: #FFFFFF;
  background: linear-gradient(90deg, var(--planet-red) 0%, #A52830 100%);
  font-weight: 600;
  box-shadow: 0 4px 12px rgba(140, 29, 36, 0.35);
}

.nav-item.active svg {
  stroke: #FFFFFF;
}

.nav-badge {
  margin-left: auto;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  background-color: rgba(255, 255, 255, 0.16);
  color: #FFFFFF;
}

.nav-badge.danger {
  background-color: var(--planet-red);
  color: #FFFFFF;
}

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.78rem;
  color: #64748B;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.sidebar-footer strong {
  color: #CBD5E1;
}

/* Sidebar en Modo Oscuro */
[data-theme="dark"] .sidebar {
  background: linear-gradient(180deg, #070F1C 0%, #0B1728 50%, #0E1E36 100%) !important;
  border-right: 1px solid #1E3557 !important;
  box-shadow: 4px 0 25px rgba(0, 0, 0, 0.6) !important;
}

[data-theme="dark"] .sidebar-header {
  border-bottom: 1px solid rgba(255, 255, 255, 0.08) !important;
}

[data-theme="dark"] .school-brand h2 {
  color: #FFFFFF !important;
}

[data-theme="dark"] .school-brand span {
  color: #94A3B8 !important;
}

[data-theme="dark"] .sidebar-role-card {
  background-color: rgba(255, 255, 255, 0.06) !important;
  border: 1px solid rgba(255, 255, 255, 0.12) !important;
}

[data-theme="dark"] .role-tag {
  color: #60A5FA !important;
}

[data-theme="dark"] .role-name {
  color: #FFFFFF !important;
}

[data-theme="dark"] .btn-change-role-mini {
  background: rgba(255, 255, 255, 0.12) !important;
  color: #FFFFFF !important;
}

[data-theme="dark"] .nav-section-title {
  color: #94A3B8 !important;
  font-weight: 700 !important;
}

[data-theme="dark"] .nav-item {
  color: #CBD5E1 !important;
}

[data-theme="dark"] .nav-item svg {
  stroke: #94A3B8 !important;
}

[data-theme="dark"] .nav-item:hover {
  color: #FFFFFF !important;
  background-color: rgba(255, 255, 255, 0.1) !important;
}

[data-theme="dark"] .nav-item:hover svg {
  stroke: #FFFFFF !important;
}

[data-theme="dark"] .nav-item.active {
  color: #FFFFFF !important;
  background: linear-gradient(90deg, var(--planet-red) 0%, #A52830 100%) !important;
  box-shadow: 0 4px 14px rgba(140, 29, 36, 0.45) !important;
}

[data-theme="dark"] .nav-item.active svg {
  stroke: #FFFFFF !important;
}

[data-theme="dark"] .nav-badge {
  background-color: rgba(255, 255, 255, 0.2) !important;
  color: #FFFFFF !important;
}

[data-theme="dark"] .nav-badge.danger {
  background-color: var(--planet-red) !important;
  color: #FFFFFF !important;
}

[data-theme="dark"] .sidebar-footer {
  border-top: 1px solid rgba(255, 255, 255, 0.08) !important;
  color: #94A3B8 !important;
}

[data-theme="dark"] .sidebar-footer strong {
  color: #CBD5E1 !important;
}

[data-theme="dark"] #btnLogout {
  color: #F87171 !important;
}

[data-theme="dark"] #btnLogout svg {
  stroke: #F87171 !important;
}

[data-theme="dark"] #btnLogout:hover {
  color: #FECACA !important;
  background-color: rgba(239, 68, 68, 0.15) !important;
}

[data-theme="dark"] #btnLogout:hover svg {
  stroke: #FECACA !important;
}

/* ----------------- ÁREA DE CONTENIDO (MAIN WRAPPER) ----------------- */
.main-wrapper {
  flex: 1;
  margin-left: var(--sidebar-width);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-width: 0; /* Para evitar desbordes en flex */
  transition: margin-left var(--transition-normal);
}

/* Cabecera Superior */
.top-header {
  height: var(--header-height);
  background-color: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  position: sticky;
  top: 0;
  z-index: 900;
  box-shadow: var(--shadow-sm);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.btn-sidebar-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border-color);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--planet-navy);
}

.page-title-wrap h1 {
  font-size: 1.35rem;
  line-height: 1.2;
}

.page-title-wrap p {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 14px;
}

.header-search {
  position: relative;
  width: 280px;
}

.header-search input {
  width: 100%;
  padding: 9px 12px 9px 36px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-color);
  background-color: var(--bg-body);
  font-size: 0.88rem;
  color: var(--text-main);
  outline: none;
  transition: all var(--transition-fast);
}

.header-search input:focus {
  background-color: #FFFFFF;
  border-color: var(--planet-blue-light);
  box-shadow: 0 0 0 3px rgba(43, 108, 176, 0.15);
}

.header-search svg {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  stroke: var(--text-muted);
  pointer-events: none;
}

.btn-quick-loan {
  background: linear-gradient(135deg, var(--planet-red) 0%, var(--planet-red-hover) 100%);
  color: #FFFFFF;
  border: none;
  padding: 9px 18px;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  box-shadow: 0 3px 10px rgba(140, 29, 36, 0.28);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  white-space: nowrap;
}

.btn-quick-loan:hover {
  transform: translateY(-1px);
  box-shadow: 0 5px 14px rgba(140, 29, 36, 0.38);
}

.user-badge-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 12px;
  background-color: var(--bg-body);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  cursor: default;
  user-select: none;
}

.user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--planet-blue);
  color: #FFFFFF;
  font-weight: 700;
  font-size: 0.8rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.user-text-wrap {
  text-align: left;
}

.user-text-name {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--planet-navy);
  line-height: 1.1;
}

.user-text-role {
  font-size: 0.72rem;
  color: var(--planet-blue-light);
  font-weight: 600;
}

/* Contenido Principal de Vistas */
.page-content {
  flex: 1;
  padding: 28px;
}

.view-section {
  display: none;
  animation: fadeIn 0.25s ease-in-out;
}

.view-section.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   COMPONENTES: TARJETAS DE ESTADÍSTICAS Y ALERTAS
   ========================================================================== */

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-bottom: 26px;
}

.metric-card {
  background-color: var(--bg-card);
  padding: 22px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  gap: 16px;
  position: relative;
  overflow: hidden;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.metric-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.metric-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background-color: var(--planet-blue);
}

.metric-card.danger::after {
  background-color: var(--planet-red);
}

.metric-card.warning::after {
  background-color: #F59E0B;
}

.metric-card.success::after {
  background-color: #10B981;
}

.metric-icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background-color: var(--planet-blue-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--planet-blue);
  flex-shrink: 0;
}

.metric-card.danger .metric-icon-wrap {
  background-color: var(--planet-red-soft);
  color: var(--planet-red);
}

.metric-card.warning .metric-icon-wrap {
  background-color: #FEF3C7;
  color: #B45309;
}

.metric-card.success .metric-icon-wrap {
  background-color: #DCFCE7;
  color: #15803D;
}

.metric-data h3 {
  font-size: 1.85rem;
  line-height: 1.1;
  font-weight: 700;
  margin-bottom: 2px;
}

.metric-data p {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* Alerta de Retrasos */
.alert-banner {
  background: linear-gradient(90deg, #FEF2F2 0%, #FFF5F5 100%);
  border: 1px solid #FECACA;
  border-left: 5px solid var(--planet-red);
  padding: 16px 20px;
  border-radius: var(--radius-md);
  margin-bottom: 26px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.alert-content {
  display: flex;
  align-items: center;
  gap: 14px;
}

.alert-icon {
  color: var(--planet-red);
  flex-shrink: 0;
}

.alert-text h4 {
  font-size: 0.96rem;
  color: #991B1B;
  font-weight: 700;
}

.alert-text p {
  font-size: 0.85rem;
  color: #7F1D1D;
}

.btn-alert-action {
  background-color: var(--planet-red);
  color: #FFFFFF;
  border: none;
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.83rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
}

.btn-alert-action:hover {
  background-color: var(--planet-red-hover);
}

/* ==========================================================================
   TABLAS Y LISTADOS RESPONSIVOS
   ========================================================================== */

.card-container {
  background-color: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  margin-bottom: 26px;
  overflow: hidden;
}

.card-header-actions {
  padding: 18px 24px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
}

.card-title-group h2 {
  font-size: 1.18rem;
}

.card-title-group p {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.card-controls {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.filter-select {
  padding: 8px 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background-color: #FFFFFF;
  font-size: 0.86rem;
  color: var(--text-main);
  outline: none;
}

.filter-select:focus {
  border-color: var(--planet-blue-light);
}

.search-input-mini {
  padding: 8px 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  font-size: 0.86rem;
  outline: none;
}

.search-input-mini:focus {
  border-color: var(--planet-blue-light);
}

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

.custom-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.9rem;
}

.custom-table th {
  background-color: #F8FAFC;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
}

.custom-table td {
  padding: 14px 20px;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-main);
  vertical-align: middle;
}

.custom-table tr:hover td {
  background-color: rgba(241, 245, 249, 0.6);
}

.custom-table tr:last-child td {
  border-bottom: none;
}

/* Badges de Estado */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 700;
  white-space: nowrap;
}

.status-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: currentColor;
}

.status-badge.activo {
  background-color: var(--status-active-bg);
  color: var(--status-active-text);
}

.status-badge.proximo {
  background-color: var(--status-warning-bg);
  color: var(--status-warning-text);
}

.status-badge.vencido {
  background-color: var(--status-danger-bg);
  color: var(--status-danger-text);
}

.status-badge.devuelto {
  background-color: var(--status-success-bg);
  color: var(--status-success-text);
}

/* Acciones en Tabla */
.action-buttons-group {
  display: flex;
  align-items: center;
  gap: 6px;
}

.btn-action {
  border: 1px solid var(--border-color);
  background-color: #FFFFFF;
  color: var(--text-main);
  padding: 5px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: all var(--transition-fast);
}

.btn-action:hover {
  background-color: #F1F5F9;
  border-color: #CBD5E1;
}

.btn-action.primary {
  background-color: var(--planet-blue);
  border-color: var(--planet-blue);
  color: #FFFFFF;
}

.btn-action.primary:hover {
  background-color: var(--planet-blue-light);
}

.btn-action.success {
  background-color: #10B981;
  border-color: #10B981;
  color: #FFFFFF;
}

.btn-action.success:hover {
  background-color: #059669;
}

.btn-action.danger {
  color: var(--planet-red);
}

.btn-action.danger:hover {
  background-color: var(--planet-red-soft);
  border-color: var(--planet-red);
}

/* ==========================================================================
   CATÁLOGO DE LIBROS (VISTA CUADRÍCULA / TARJETAS)
   ========================================================================== */

.books-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

.book-card {
  background-color: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.book-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.book-spine-accent {
  height: 8px;
  width: 100%;
}

.book-body {
  padding: 18px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.book-cycle-tag {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--planet-blue);
  background-color: var(--planet-blue-soft);
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  display: inline-block;
  margin-bottom: 10px;
  width: fit-content;
}

.book-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--planet-navy);
  line-height: 1.3;
  margin-bottom: 4px;
}

.book-author {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.book-meta-list {
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px dashed var(--border-color);
}

.book-meta-row {
  display: flex;
  justify-content: space-between;
}

.book-card-footer {
  padding: 12px 18px;
  background-color: #F8FAFC;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.stock-indicator {
  font-size: 0.8rem;
  font-weight: 600;
}

.stock-indicator.available {
  color: #059669;
}

.stock-indicator.exhausted {
  color: var(--planet-red);
}

/* ==========================================================================
   MODALES Y FORMULARIOS
   ========================================================================== */

.modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(13, 30, 54, 0.6);
  backdrop-filter: blur(4px);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: fadeIn 0.2s ease;
}

.modal-backdrop.active {
  display: flex;
}

.modal-card {
  background-color: #FFFFFF;
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 540px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
}

.modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: linear-gradient(180deg, #FFFFFF 0%, #F8FAFC 100%);
}

.modal-header h3 {
  font-size: 1.2rem;
}

.btn-close-modal {
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  padding: 4px;
  border-radius: 4px;
}

.btn-close-modal:hover {
  background-color: #E2E8F0;
  color: var(--text-main);
}

.modal-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--planet-navy);
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: 10px 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  outline: none;
  font-size: 0.92rem;
  color: var(--text-main);
  background-color: #FFFFFF;
  transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--planet-blue-light);
  box-shadow: 0 0 0 3px rgba(43, 108, 176, 0.12);
}

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

.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border-color);
  background-color: #F8FAFC;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
}

.btn-secondary {
  background-color: #FFFFFF;
  border: 1px solid var(--border-color);
  padding: 9px 18px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--text-main);
  cursor: pointer;
}

.btn-secondary:hover {
  background-color: #F1F5F9;
}

.btn-primary {
  background: linear-gradient(135deg, var(--planet-blue) 0%, var(--planet-blue-light) 100%);
  border: none;
  padding: 9px 20px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.88rem;
  color: #FFFFFF;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(30, 78, 140, 0.25);
}

.btn-primary:hover {
  background: var(--planet-blue-light);
}

/* ==========================================================================
   SELECTOR DE PERFIL / ROLES (DIRECCIÓN, SECRETARÍA, PROFESORES, ALUMNOS)
   ========================================================================== */

.role-selector-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-top: 6px;
}

.role-card-pick {
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px;
  background-color: #FFFFFF;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: all var(--transition-fast);
  text-align: left;
}

.role-card-pick:hover {
  border-color: var(--planet-blue-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.role-card-pick.active {
  border-color: var(--planet-red);
  background-color: var(--planet-red-soft);
}

.role-card-title {
  font-weight: 700;
  font-size: 0.98rem;
  color: var(--planet-navy);
  display: flex;
  align-items: center;
  gap: 8px;
}

.role-card-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ==========================================================================
   NOTIFICACIÓN FLOTANTE (TOAST)
   ========================================================================== */

.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 3000;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.toast {
  background-color: var(--planet-navy);
  color: #FFFFFF;
  padding: 12px 20px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  font-size: 0.88rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 12px;
  animation: slideUp 0.25s ease;
  border-left: 4px solid var(--planet-blue-light);
}

.toast.success {
  border-left-color: #10B981;
}

.toast.error {
  border-left-color: var(--planet-red);
}

@keyframes slideUp {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* Overlay para móvil cuando el menú está abierto */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background-color: rgba(13, 30, 54, 0.5);
  backdrop-filter: blur(2px);
  z-index: 999;
}

/* ==========================================================================
   RESPONSIVIDAD (MÓVIL Y TABLET)
   ========================================================================== */

@media (max-width: 992px) {
  .sidebar {
    transform: translateX(-100%);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .sidebar-overlay.active {
    display: block;
  }

  .main-wrapper {
    margin-left: 0;
  }

  .btn-sidebar-toggle {
    display: inline-flex;
  }

  .header-search {
    width: 200px;
  }

  .role-selector-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .top-header {
    padding: 0 16px;
  }

  .page-content {
    padding: 16px;
  }

  .header-search {
    display: none;
  }

  .user-text-wrap {
    display: none;
  }

  .metrics-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .card-header-actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .card-controls {
    width: 100%;
  }

  .card-controls select,
  .card-controls input {
    width: 100%;
  }

  .books-grid {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   FORMATO DE IMPRESIÓN (PRINT CSS)
   ========================================================================== */

@media print {
  body {
    background-color: #FFFFFF;
    color: #000000;
  }

  .sidebar,
  .top-header,
  .card-controls,
  .btn-quick-loan,
  .action-buttons-group,
  .modal-backdrop,
  .toast-container {
    display: none !important;
  }

  .main-wrapper {
    margin-left: 0 !important;
  }

  .page-content {
    padding: 0 !important;
  }

  .card-container {
    box-shadow: none !important;
    border: none !important;
  }

  .custom-table th,
  .custom-table td {
    padding: 8px 10px;
    font-size: 11pt;
  }

  .print-header {
    display: block !important;
    margin-bottom: 20px;
    text-align: center;
    border-bottom: 2px solid #000000;
    padding-bottom: 12px;
  }
}

.print-header {
  display: none;
}

/* ==========================================================================
   PANTALLA DE LOGIN PROFESIONAL (COLEGIO EL PLANET)
   ========================================================================== */

.login-view-wrapper {
  position: fixed;
  inset: 0;
  z-index: 5000;
  background: radial-gradient(circle at 10% 20%, #162C4E 0%, #0D1E36 50%, #081220 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  overflow-y: auto;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.login-view-wrapper.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.login-card {
  width: 100%;
  max-width: 480px;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(16px);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.2);
  display: flex;
  flex-direction: column;
  position: relative;
}

[data-theme="dark"] .login-card {
  background-color: rgba(19, 34, 56, 0.95);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.7);
}

.login-brand-header {
  text-align: center;
  margin-bottom: 24px;
}

.login-logo-glow {
  width: 88px;
  height: 88px;
  margin: 0 auto 16px auto;
  border-radius: 50%;
  background-color: #FFFFFF;
  padding: 3px;
  box-shadow: 0 8px 24px rgba(43, 108, 176, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 3px solid #2B6CB0;
}

.login-logo-glow img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}

.login-brand-header h1 {
  font-size: 1.55rem;
  color: var(--planet-navy);
  margin-bottom: 4px;
}

[data-theme="dark"] .login-brand-header h1 {
  color: #FFFFFF;
}

.login-brand-header p {
  font-size: 0.88rem;
  color: var(--text-muted);
}

.login-domain-badge {
  display: inline-block;
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--planet-blue);
  background-color: var(--planet-blue-soft);
  padding: 3px 10px;
  border-radius: var(--radius-full);
  margin-top: 6px;
}

[data-theme="dark"] .login-domain-badge {
  background-color: rgba(43, 108, 176, 0.25);
  color: #93C5FD;
}

.login-role-tabs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
  background-color: var(--bg-body);
  padding: 4px;
  border-radius: var(--radius-md);
  margin-bottom: 20px;
  border: 1px solid var(--border-color);
}

[data-theme="dark"] .login-role-tabs {
  background-color: #0F1B2E;
}

.login-role-tab {
  background: transparent;
  border: none;
  padding: 8px 4px;
  border-radius: var(--radius-sm);
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.login-role-tab:hover {
  color: var(--text-main);
}

.login-role-tab.active {
  background-color: var(--planet-red);
  color: #FFFFFF;
  box-shadow: 0 2px 6px rgba(140, 29, 36, 0.3);
}

.demo-credentials-box {
  background-color: var(--planet-blue-soft);
  border: 1px dashed var(--planet-blue-light);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

[data-theme="dark"] .demo-credentials-box {
  background-color: rgba(43, 108, 176, 0.15);
  border-color: #2B6CB0;
}

.demo-credentials-text {
  font-size: 0.8rem;
  color: var(--planet-navy);
}

[data-theme="dark"] .demo-credentials-text {
  color: #E2E8F0;
}

.btn-fill-demo {
  background-color: var(--planet-blue);
  color: #FFFFFF;
  border: none;
  padding: 5px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
}

.btn-fill-demo:hover {
  background-color: var(--planet-blue-light);
}

.btn-login-submit {
  width: 100%;
  padding: 12px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--planet-blue) 0%, var(--planet-blue-light) 100%);
  color: #FFFFFF;
  border: none;
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(30, 78, 140, 0.3);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  margin-top: 8px;
}

.btn-login-submit:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(30, 78, 140, 0.4);
}

/* ==========================================================================
   BOTÓN DE CAMBIO DE TEMA (SOL / LUNA)
   ========================================================================== */

.btn-theme-toggle {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--border-color);
  background-color: var(--bg-card);
  color: var(--text-main);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.btn-theme-toggle:hover {
  background-color: var(--bg-body);
  border-color: var(--planet-blue-light);
  transform: rotate(15deg);
}

.btn-theme-toggle svg {
  width: 18px;
  height: 18px;
}

/* ==========================================================================
   FICHA DE ALUMNO ENRIQUECIDA Y DETALLE DE LIBRO
   ========================================================================== */

.detail-header-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px;
  background-color: var(--bg-body);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  margin-bottom: 16px;
}

.detail-avatar-circle {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--planet-navy) 0%, var(--planet-blue) 100%);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 700;
  flex-shrink: 0;
}

.contact-quick-actions {
  display: flex;
  gap: 8px;
  margin-top: 6px;
}

.btn-pill-action {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.78rem;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  color: var(--text-main);
  text-decoration: none;
  font-weight: 600;
}

.btn-pill-action:hover {
  border-color: var(--planet-blue-light);
  color: var(--planet-blue);
}

.detail-stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 18px;
}

.detail-stat-box {
  padding: 12px;
  background-color: var(--bg-body);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  text-align: center;
}

.detail-stat-box strong {
  display: block;
  font-size: 1.3rem;
  color: var(--planet-navy);
}

[data-theme="dark"] .detail-stat-box strong {
  color: #F8FAFC;
}

.detail-stat-box span {
  font-size: 0.76rem;
  color: var(--text-muted);
}

/* ==========================================================================
   SELECTOR BÚSQUEDA INTERACTIVA (AUTOCOMPLETE ALUMNOS Y LIBROS)
   ========================================================================== */

.searchable-select-wrap {
  position: relative;
  display: flex;
  flex-direction: column;
}

.searchable-input-box {
  position: relative;
  width: 100%;
}

.searchable-input-box input {
  width: 100%;
  padding-left: 36px !important;
}

.searchable-input-box svg {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  color: var(--text-muted);
  pointer-events: none;
}

.searchable-results-list {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  max-height: 220px;
  overflow-y: auto;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  z-index: 2500;
  margin-top: 4px;
  display: none;
}

.searchable-results-list.open {
  display: block;
}

.searchable-result-item {
  padding: 10px 14px;
  cursor: pointer;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background-color var(--transition-fast);
  font-size: 0.88rem;
}

.searchable-result-item:last-child {
  border-bottom: none;
}

.searchable-result-item:hover,
.searchable-result-item.highlighted {
  background-color: var(--planet-blue-soft);
}

[data-theme="dark"] .searchable-result-item:hover,
[data-theme="dark"] .searchable-result-item.highlighted {
  background-color: #1A3459;
}

.selected-entity-chip {
  padding: 12px 14px;
  background-color: var(--planet-blue-soft);
  border: 1px solid var(--planet-blue-light);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.selected-entity-info {
  display: flex;
  align-items: center;
  gap: 10px;
}

.selected-entity-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: var(--planet-blue);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 700;
}

.btn-change-selected {
  background: transparent;
  border: 1px solid var(--planet-blue);
  color: var(--planet-blue);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.76rem;
  font-weight: 600;
  cursor: pointer;
}

.btn-change-selected:hover {
  background-color: var(--planet-blue);
  color: #FFFFFF;
}

/* ==========================================================================
   ALTERNADOR DE VISTA DE CATÁLOGO (CUADRÍCULA / LISTA)
   ========================================================================== */

.view-switch-group {
  display: inline-flex;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--bg-card);
}

.view-switch-btn {
  background: transparent;
  border: none;
  padding: 8px 12px;
  cursor: pointer;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  transition: all var(--transition-fast);
}

.view-switch-btn:hover {
  color: var(--text-main);
  background-color: var(--bg-body);
}

.view-switch-btn.active {
  background-color: var(--planet-blue);
  color: #FFFFFF;
}

.sort-select {
  padding: 8px 12px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background-color: var(--bg-card);
  color: var(--text-main);
  font-size: 0.86rem;
  outline: none;
}

/* ==========================================================================
   FOOTER INSTITUCIONAL - COLEGIO EL PLANET
   ========================================================================== */
.institutional-footer {
  margin-top: auto;
  background: linear-gradient(180deg, #0D1E36 0%, #081324 100%);
  color: #E2E8F0;
  border-top: 3px solid var(--planet-red);
  padding: 44px 32px 24px 32px;
  font-size: 0.9rem;
}

.footer-top-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 36px;
  margin-bottom: 36px;
}

@media (max-width: 1024px) {
  .footer-top-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
  }
}

@media (max-width: 640px) {
  .footer-top-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .institutional-footer {
    padding: 32px 20px 20px 20px;
  }
}

.footer-brand-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 14px;
}

.footer-logo-wrap {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  overflow: hidden;
  flex-shrink: 0;
  border: 2px solid #FFFFFF;
}

.footer-logo-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.footer-school-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: #FFFFFF;
  margin: 0;
  line-height: 1.2;
}

.footer-school-subtitle {
  font-size: 0.8rem;
  color: #94A3B8;
  display: block;
}

.footer-desc {
  font-size: 0.86rem;
  line-height: 1.55;
  color: #94A3B8;
  margin-bottom: 18px;
}

.btn-corp-portal {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: rgba(255, 255, 255, 0.08);
  color: #FFFFFF;
  padding: 8px 14px;
  border-radius: var(--radius-md);
  font-size: 0.84rem;
  font-weight: 600;
  border: 1px solid rgba(255, 255, 255, 0.15);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.btn-corp-portal:hover {
  background-color: var(--planet-red);
  border-color: var(--planet-red);
  color: #FFFFFF;
  transform: translateY(-1px);
}

.footer-heading {
  font-size: 0.92rem;
  font-weight: 700;
  color: #FFFFFF;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 16px;
  position: relative;
  padding-bottom: 8px;
}

.footer-heading::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 32px;
  height: 2px;
  background-color: var(--planet-red);
  border-radius: 2px;
}

.footer-links-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links-list li a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #CBD5E1;
  text-decoration: none;
  font-size: 0.87rem;
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.footer-links-list li a:hover {
  color: #60A5FA;
  transform: translateX(3px);
}

.footer-links-list li a svg {
  stroke: #94A3B8;
  transition: stroke var(--transition-fast);
}

.footer-links-list li a:hover svg {
  stroke: #60A5FA;
}

.footer-contact-info {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.86rem;
  color: #CBD5E1;
  line-height: 1.4;
}

.footer-contact-item svg {
  stroke: #60A5FA;
  margin-top: 2px;
  flex-shrink: 0;
}

.footer-bottom-bar {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 22px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 0.82rem;
  color: #94A3B8;
}

.footer-copyright-text strong {
  color: #FFFFFF;
}

.footer-sub-meta a {
  color: #60A5FA;
  text-decoration: none;
}

.footer-sub-meta a:hover {
  text-decoration: underline;
}

.footer-bottom-links {
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-bottom-links a {
  color: #CBD5E1;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-bottom-links a:hover {
  color: #60A5FA;
}

.footer-bottom-links .sep {
  color: #475569;
}

.btn-scroll-top {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #FFFFFF;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  margin-left: 6px;
}

.btn-scroll-top:hover {
  background: var(--planet-blue);
  border-color: var(--planet-blue);
}

/* En Modo Oscuro */
[data-theme="dark"] .institutional-footer {
  background: linear-gradient(180deg, #070E1A 0%, #050B14 100%) !important;
  border-top-color: var(--planet-red) !important;
}

/* ==========================================================================
   VISTA DE INFORMES Y LISTADOS ESCOLARES
   ========================================================================== */

.report-type-bar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  padding: 14px 24px;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-card-header);
}

.report-type-btn,
.settings-tab-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 8px 16px;
  border-radius: var(--radius-full);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all var(--transition-fast);
}

.report-type-btn:hover,
.settings-tab-btn:hover {
  border-color: var(--planet-blue);
  color: var(--planet-blue);
}

.report-type-btn.active,
.settings-tab-btn.active {
  background: var(--planet-blue);
  border-color: var(--planet-blue);
  color: #FFFFFF !important;
  box-shadow: 0 2px 8px rgba(30, 78, 140, 0.25);
}

[data-theme="dark"] .report-type-btn,
[data-theme="dark"] .settings-tab-btn {
  background: #172A45;
  border-color: #243D61;
  color: #CBD5E1;
}

[data-theme="dark"] .report-type-btn.active,
[data-theme="dark"] .settings-tab-btn.active {
  background: var(--planet-blue) !important;
  border-color: var(--planet-blue) !important;
  color: #FFFFFF !important;
}

.printable-report-wrapper {
  background: var(--bg-card);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

/* ==========================================================================
   CARNET DE BIBLIOTECA ESCOLAR (85.6mm x 53.98mm - FORMATO OFICIAL ID-1)
   ========================================================================== */

.student-library-card {
  width: 85.6mm;
  height: 53.98mm;
  min-width: 85.6mm;
  min-height: 53.98mm;
  max-width: 85.6mm;
  max-height: 53.98mm;
  box-sizing: border-box;
  background: #FFFFFF !important;
  color: #0D1E36 !important;
  border: 1px solid #CBD5E1;
  border-radius: 4mm;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.12);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 0;
  font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  user-select: none;
  -webkit-print-color-adjust: exact !important;
  print-color-adjust: exact !important;
}

.card-top-stripe {
  background: linear-gradient(135deg, #0D1E36 0%, #1E4E8C 100%) !important;
  border-bottom: 2.5px solid #8C1D24 !important;
  padding: 2.8mm 3.8mm;
  display: flex;
  align-items: center;
  gap: 3mm;
  color: #FFFFFF !important;
  -webkit-print-color-adjust: exact !important;
  print-color-adjust: exact !important;
}

.card-logo-box {
  width: 7.5mm;
  height: 7.5mm;
  border-radius: 50%;
  background: #FFFFFF;
  padding: 0.5mm;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.card-logo-box img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.card-institution-text {
  line-height: 1.15;
}

.card-institution-text h4 {
  font-size: 8.5pt !important;
  font-weight: 800;
  margin: 0;
  letter-spacing: 0.3px;
  color: #FFFFFF !important;
  font-family: 'Outfit', sans-serif;
}

.card-institution-text span {
  font-size: 5.5pt !important;
  letter-spacing: 0.4px;
  color: #E2E8F0 !important;
  font-weight: 600;
  display: block;
}

.card-main-content {
  padding: 2.2mm 3.8mm 1mm 3.8mm;
  display: flex;
  gap: 3.5mm;
  align-items: center;
  flex: 1;
}

.card-photo-box {
  width: 22mm;
  height: 27mm;
  border: 1.2px solid #94A3B8;
  border-radius: 2mm;
  background: #F1F5F9;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.card-photo-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.card-photo-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: #64748B;
  font-size: 13pt;
  background: #E2E8F0;
}

.card-student-data {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 1.2mm;
  overflow: hidden;
}

.card-student-fullname {
  font-size: 9.5pt;
  font-weight: 800;
  color: #0D1E36 !important;
  line-height: 1.15;
  white-space: normal;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.card-student-course-badge {
  display: inline-block;
  align-self: flex-start;
  background: #EBF3FC !important;
  color: #1E4E8C !important;
  border: 0.8px solid #93C5FD !important;
  padding: 0.6mm 2.2mm;
  border-radius: 2mm;
  font-size: 6.8pt;
  font-weight: 700;
  -webkit-print-color-adjust: exact !important;
  print-color-adjust: exact !important;
}

.card-student-meta {
  font-size: 6.5pt;
  color: #475569 !important;
  line-height: 1.3;
}

.card-student-meta strong {
  color: #0D1E36 !important;
}

.card-footer-barcode {
  padding: 1mm 3.8mm 2mm 3.8mm;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border-top: 0.8px dashed #CBD5E1;
  background: #FAFAFA !important;
  -webkit-print-color-adjust: exact !important;
  print-color-adjust: exact !important;
}

.barcode-graphic {
  width: 100%;
  height: 6.8mm;
  display: flex;
  align-items: center;
  justify-content: center;
}

.barcode-graphic svg {
  height: 100%;
  width: auto;
  max-width: 100%;
}

.barcode-digits {
  font-family: 'Courier New', Courier, monospace;
  font-size: 6pt;
  color: #334155 !important;
  letter-spacing: 1.5px;
  font-weight: 700;
  margin-top: 0.4mm;
}

/* Modal preview container */
#modalStudentCard .modal-body {
  background: #E2E8F0;
}
[data-theme="dark"] #modalStudentCard .modal-body {
  background: #0B1524;
}

/* ==========================================================================
   CUADRÍCULA DE IMPRESIÓN EN LOTE (HOJA A4)
   ========================================================================== */

.batch-cards-sheet-preview {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.batch-cards-grid {
  display: grid;
  grid-template-columns: repeat(2, 85.6mm);
  gap: 6mm 10mm;
  justify-content: center;
  padding: 6mm;
  background: #FFFFFF;
}

.batch-card-wrapper {
  position: relative;
  padding: 1.5mm;
  border: 0.5pt dashed #CBD5E1; /* Guía de corte para guillotina escolar */
  border-radius: 5mm;
  page-break-inside: avoid;
  break-inside: avoid;
  display: flex;
  justify-content: center;
}

/* ==========================================================================
   REGLAS ESPECÍFICAS DE IMPRESIÓN OFICIAL
   ========================================================================== */

@media print {
  /* Cuando se imprime informe escolar */
  body.printing-report #printableReportWrapper {
    padding: 0 !important;
  }

  body.printing-report #reportOfficialHeader {
    display: flex !important;
  }

  body.printing-report .report-type-bar,
  body.printing-report .card-controls,
  body.printing-report .filter-select,
  body.printing-report .search-input-mini,
  body.printing-report #btnPrintOfficialReport,
  body.printing-report #btnExportReportCSV,
  body.printing-report .institutional-footer {
    display: none !important;
  }

  /* Cuando se imprime un carnet individual */
  body.printing-single-card {
    margin: 0 !important;
    padding: 10mm !important;
  }

  body.printing-single-card .modal-backdrop {
    display: block !important;
    position: static !important;
    background: transparent !important;
    padding: 0 !important;
  }

  body.printing-single-card .modal-card {
    border: none !important;
    box-shadow: none !important;
    padding: 0 !important;
    background: transparent !important;
    max-width: none !important;
  }

  body.printing-single-card .modal-header,
  body.printing-single-card .modal-footer,
  body.printing-single-card .modal-body > div:last-child,
  body.printing-single-card .institutional-footer {
    display: none !important;
  }

  body.printing-single-card .modal-body {
    background: transparent !important;
    padding: 0 !important;
    display: block !important;
  }

  body.printing-single-card .student-library-card {
    box-shadow: none !important;
    margin: 0 !important;
    page-break-inside: avoid;
  }

  /* Cuando se imprime lote A4 */
  body.printing-batch-cards {
    margin: 0 !important;
    padding: 6mm !important;
  }

  body.printing-batch-cards .modal-backdrop {
    display: block !important;
    position: static !important;
    background: transparent !important;
    padding: 0 !important;
  }

  body.printing-batch-cards .modal-card {
    border: none !important;
    box-shadow: none !important;
    padding: 0 !important;
    background: transparent !important;
    max-width: none !important;
  }

  body.printing-batch-cards .modal-header,
  body.printing-batch-cards .modal-footer,
  body.printing-batch-cards .modal-body > div:first-child,
  body.printing-batch-cards .institutional-footer {
    display: none !important;
  }

  body.printing-batch-cards .modal-body {
    background: transparent !important;
    padding: 0 !important;
    display: block !important;
  }

  body.printing-batch-cards #batchCardsSheetContainer {
    max-height: none !important;
    overflow: visible !important;
    border: none !important;
    padding: 0 !important;
    background: transparent !important;
  }

  body.printing-batch-cards .batch-cards-grid {
    grid-template-columns: repeat(2, 85.6mm) !important;
    gap: 4mm 8mm !important;
    padding: 0 !important;
  }
}

/* ==========================================================================
   PAGINACIÓN DEL CATÁLOGO DE LIBROS
   ========================================================================== */

.pagination-wrapper {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.pagination-info {
  font-size: 0.85rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
}

.pagination-controls {
  display: flex;
  align-items: center;
  gap: 5px;
  flex-wrap: wrap;
}

.pagination-btn {
  min-width: 34px;
  height: 34px;
  padding: 0 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  color: var(--text-main);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.pagination-btn:hover:not(:disabled) {
  border-color: var(--planet-blue);
  color: var(--planet-blue);
  background: var(--bg-hover);
}

.pagination-btn.active {
  background: var(--planet-blue) !important;
  color: #FFFFFF !important;
  border-color: var(--planet-blue) !important;
  box-shadow: 0 2px 6px rgba(30, 78, 140, 0.25);
}

.pagination-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.pagination-ellipsis {
  padding: 0 4px;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.pagination-page-size {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--text-muted);
}