/* ==========================================================================
   CUADERNO DIGITAL DEL PROFESOR - CLAVES DE MÚSICA (EDPUZZLE STYLE)
   ========================================================================== */

:root {
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --primary-light: #eef2ff;
  --primary-focus: rgba(79, 70, 229, 0.25);
  
  --sidebar-bg: #ffffff;
  --sidebar-border: #e2e8f0;
  --main-bg: #f8fafc;
  --card-bg: #ffffff;
  
  --text-main: #0f172a;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  --border-color: #e2e8f0;
  --border-subtle: #f1f5f9;

  /* Mapa de calor oficial (Requisito 5) */
  --heat-red-bg: #fee2e2;
  --heat-red-text: #991b1b;
  --heat-red-border: #f87171;

  --heat-orange-bg: #ffedd5;
  --heat-orange-text: #9a3412;
  --heat-orange-border: #fb923c;

  --heat-yellow-bg: #fef9c3;
  --heat-yellow-text: #854d0e;
  --heat-yellow-border: #facc15;

  --heat-green-bg: #dcfce7;
  --heat-green-text: #166534;
  --heat-green-border: #4ade80;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-pill: 9999px;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-modal: 0 20px 25px -5px rgba(0, 0, 0, 0.15), 0 10px 10px -5px rgba(0, 0, 0, 0.08);

  --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

body {
  font-family: var(--font-main);
  background-color: var(--main-bg);
  color: var(--text-main);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ==========================================================================
   BARRA DE NAVEGACIÓN SUPERIOR (TOPBAR - Captura 1)
   ========================================================================== */
.topbar {
  height: 64px;
  background-color: #ffffff;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 18px;
}

.btn-toggle-menu {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 6px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  transition: all 0.2s;
}

.btn-toggle-menu:hover {
  background-color: var(--border-subtle);
  color: var(--text-main);
}

.topbar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-logo-img {
  height: 38px;
  width: auto;
  object-fit: contain;
}

.brand-title-badge {
  display: flex;
  flex-direction: column;
}

.brand-title-main {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.3px;
}

.brand-title-sub {
  font-size: 11px;
  color: var(--primary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.topbar-center {
  flex: 1;
  max-width: 540px;
  margin: 0 28px;
}

.search-box {
  display: flex;
  align-items: center;
  gap: 10px;
  background-color: #f1f5f9;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  padding: 8px 16px;
  transition: all 0.2s;
}

.search-box:focus-within {
  background-color: #ffffff;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-focus);
}

.search-icon {
  color: var(--text-light);
  display: flex;
  align-items: center;
}

.search-input {
  border: none;
  background: none;
  outline: none;
  width: 100%;
  font-size: 13.5px;
  color: var(--text-main);
}

.search-input::placeholder {
  color: var(--text-light);
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-icon {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 8px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  transition: all 0.2s;
}

.btn-icon:hover {
  background-color: var(--border-subtle);
  color: var(--text-main);
}

.user-profile-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 4px 10px 4px 4px;
  border-radius: var(--radius-pill);
  background-color: #f8fafc;
  border: 1px solid var(--border-color);
}

.user-avatar-circle {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, #4f46e5, #7c3aed);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 13px;
}

.user-name-text {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-main);
}

.btn-logout {
  background: none;
  border: 1px solid #fee2e2;
  color: #b91c1c;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s;
}

.btn-logout:hover {
  background-color: #fee2e2;
}

/* ==========================================================================
   ESTRUCTURA PRINCIPAL (SIDEBAR + CONTENIDO)
   ========================================================================== */
.app-layout {
  display: flex;
  min-height: calc(100vh - 64px);
}

/* ==========================================================================
   BARRA LATERAL IZQUIERDA (SIDEBAR - Captura 1)
   ========================================================================== */
.sidebar {
  width: 270px;
  background-color: var(--sidebar-bg);
  border-right: 1px solid var(--sidebar-border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  padding: 16px 12px;
  gap: 16px;
}

.sidebar-btn-agregar-wrap {
  padding: 0 4px;
}

.btn-agregar-nuevo {
  width: 100%;
  background-color: #ffffff;
  border: 1px solid #d1d5db;
  color: #374151;
  border-radius: var(--radius-pill);
  padding: 8px 16px;
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 10px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
  transition: all 0.2s;
}

.btn-agregar-nuevo:hover {
  background-color: #f9fafb;
  border-color: #9ca3af;
  color: #111827;
  transform: translateY(-1px);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.08);
}

.btn-agregar-nuevo-icon {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background-color: #ea580c;
  color: #ffffff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
}

.sidebar-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.sidebar-nav-item a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 14px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 13.5px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: all 0.15s;
}

.sidebar-nav-item a:hover {
  background-color: var(--border-subtle);
  color: var(--text-main);
}

.sidebar-nav-item.active a {
  background-color: var(--primary-light);
  color: var(--primary);
  font-weight: 600;
}

.sidebar-seccion-clases {
  display: flex;
  flex-direction: column;
  flex: 1;
  border-top: 1px solid var(--border-color);
  padding-top: 14px;
}

.seccion-clases-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 10px 8px 10px;
}

.seccion-clases-titulo {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.seccion-clases-acciones {
  display: flex;
  align-items: center;
  gap: 4px;
}

.btn-mini-action {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  transition: all 0.15s;
}

.btn-mini-action:hover {
  background-color: var(--border-subtle);
  color: var(--primary);
}

.lista-clases {
  display: flex;
  flex-direction: column;
  gap: 3px;
  overflow-y: auto;
  max-height: calc(100vh - 170px);
}

/* Cabecera de cada curso (1º a 4º de ESO) */
.sidebar-curso-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 10px 4px 10px;
  margin-top: 8px;
  border-top: 1px dashed #e2e8f0;
}

.sidebar-curso-header:first-child {
  margin-top: 0;
  border-top: none;
  padding-top: 2px;
}

.curso-header-titulo {
  font-size: 11px;
  font-weight: 700;
  color: #64748b;
  text-transform: uppercase;
  letter-spacing: 0.6px;
}

.curso-header-badge {
  font-size: 10px;
  font-weight: 600;
  color: #94a3b8;
  background-color: #f1f5f9;
  padding: 1px 6px;
  border-radius: 10px;
}

/* Cada grupo/clase de la barra lateral (Requisito 3) */
.clase-item {
  width: 100%;
  background: none;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  display: flex;
  align-items: center;
  gap: 10px;
  text-align: left;
  cursor: pointer;
  transition: all 0.15s;
}

.clase-item:hover {
  background-color: #f1f5f9;
}

.clase-item.active {
  background-color: #dbeafe; /* Azul suave Edpuzzle */
  border-color: #bfdbfe;
}

.clase-item-icon {
  color: #2563eb;
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.clase-item-info {
  display: flex;
  flex-direction: column;
  flex: 1;
  overflow: hidden;
}

.clase-item-codigo {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.clase-item-subtitulo {
  font-size: 11px;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.clase-item-badge {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  background-color: #ffffff;
  border: 1px solid var(--border-color);
  padding: 1px 6px;
  border-radius: var(--radius-pill);
}

.sidebar-footer-acciones {
  border-top: 1px solid var(--border-color);
  padding-top: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.btn-sidebar-secundario {
  width: 100%;
  background-color: #ffffff;
  border: 1px dashed #cbd5e1;
  color: var(--primary);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: all 0.2s;
}

.btn-sidebar-secundario:hover {
  background-color: var(--primary-light);
  border-color: var(--primary);
}

.sidebar-archivado {
  color: var(--text-light);
  font-size: 12.5px;
  font-weight: 500;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 10px;
  cursor: pointer;
  border-radius: var(--radius-sm);
}

.sidebar-archivado:hover {
  background-color: var(--border-subtle);
  color: var(--text-muted);
}

/* ==========================================================================
   ÁREA DE CONTENIDO PRINCIPAL (Captura 1)
   ========================================================================== */
.main-content {
  flex: 1;
  background-color: var(--main-bg);
  padding: 24px 32px 60px 32px;
  overflow-x: auto;
}

/* Cabecera del Grupo */
.grupo-header-card {
  background-color: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px 24px 0 24px;
  margin-bottom: 20px;
  box-shadow: var(--shadow-sm);
}

.grupo-header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

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

.grupo-icono-folder {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background-color: #fef08a; /* Dorado Edpuzzle */
  color: #ca8a04;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 4px rgba(202, 138, 4, 0.15);
}

.grupo-header-textos h2 {
  font-size: 20px;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.4px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.grupo-header-textos p {
  font-size: 13.5px;
  color: var(--text-muted);
  margin-top: 2px;
}

.grupo-header-badge-count {
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
  background-color: var(--primary-light);
  padding: 4px 10px;
  border-radius: var(--radius-pill);
}

.grupo-header-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn-modo-demo {
  background-color: #f8fafc;
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 600;
  padding: 7px 12px;
  border-radius: var(--radius-pill);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s;
}

.btn-modo-demo:hover {
  background-color: #f1f5f9;
}

.btn-modo-demo.activo {
  background-color: #eff6ff;
  border-color: #93c5fd;
  color: #1d4ed8;
}

.demo-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.demo-dot.online { background-color: #22c55e; }
.demo-dot.offline { background-color: #cbd5e1; }

.btn-sync-drive {
  background: none;
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 600;
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s;
}

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

/* Pestañas estilo Edpuzzle (Tareas, Miembros, Notas) */
.grupo-tabs {
  display: flex;
  gap: 28px;
  border-top: 1px solid var(--border-subtle);
  padding-top: 4px;
}

.grupo-tab-item {
  padding: 12px 2px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
  text-decoration: none;
  border-bottom: 3px solid transparent;
  cursor: pointer;
  transition: all 0.15s;
}

.grupo-tab-item:hover {
  color: var(--text-main);
}

.grupo-tab-item.active {
  color: #2563eb; /* Azul Edpuzzle */
  border-bottom-color: #2563eb;
}

/* ==========================================================================
   PANEL DE FILTRO DE FECHAS Y ACCIÓN DE DESCARGA (Captura 1)
   ========================================================================== */
.controles-barra {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 22px;
  gap: 16px;
  flex-wrap: wrap;
}

.controles-fechas-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

/* Cajas de Fecha de Inicio y Entrega (Estilo idéntico a Captura 1 y 2) */
.filtro-fecha-card {
  background-color: #ffffff;
  border: 1px solid #d1d5db;
  border-radius: 4px;
  padding: 8px 14px;
  min-width: 155px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
  position: relative;
  cursor: pointer;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.filtro-fecha-card:hover {
  border-color: #9ca3af;
}

.filtro-fecha-card:focus-within {
  border-color: #2563eb;
  box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.15);
}

.filtro-fecha-label {
  display: block;
  font-size: 11px;
  color: #6b7280;
  margin-bottom: 3px;
  font-weight: 500;
}

.filtro-fecha-content-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
}

.filtro-fecha-valor-txt {
  font-size: 16px;
  font-weight: 700;
  color: #111827;
}

.filtro-fecha-hora-txt {
  font-size: 11px;
  color: #9ca3af;
  font-weight: 500;
}

.filtro-fecha-input-hidden {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

/* Navegación < y > sobre la tabla (Captura 1) */
.tabla-subcontroles-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background-color: #ffffff;
  border-bottom: 1px solid var(--border-color);
}

.btn-group-flechas {
  display: inline-flex;
  border: 1px solid #d1d5db;
  border-radius: 4px;
  overflow: hidden;
  background-color: #ffffff;
}

.btn-flecha-pag {
  background: none;
  border: none;
  border-right: 1px solid #d1d5db;
  padding: 5px 14px;
  color: #374151;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.15s;
}

.btn-flecha-pag:last-child {
  border-right: none;
}

.btn-flecha-pag:hover {
  background-color: #f3f4f6;
}

.presets-fechas-group {
  display: flex;
  align-items: center;
  gap: 4px;
  background-color: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 3px;
}

.btn-preset-fecha {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 600;
  padding: 5px 10px;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.15s;
}

.btn-preset-fecha:hover {
  background-color: var(--border-subtle);
  color: var(--text-main);
}

.controles-acciones-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Botón Descargar Notas (Requisito 7 - Captura 1) */
.btn-descargar-notas {
  background-color: #ffffff;
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 9px 18px;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: var(--shadow-sm);
  transition: all 0.2s;
}

.btn-descargar-notas:hover {
  background-color: #f8fafc;
  border-color: #cbd5e1;
  color: var(--primary);
}

.btn-anadir-app {
  background-color: var(--primary);
  border: 1px solid var(--primary);
  color: #ffffff;
  padding: 9px 18px;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  box-shadow: 0 2px 4px rgba(79, 70, 229, 0.25);
  transition: all 0.2s;
}

.btn-anadir-app:hover {
  background-color: var(--primary-hover);
  transform: translateY(-1px);
}

/* ==========================================================================
   TABLA DE CALIFICACIONES CON MAPA DE CALOR (Requisito 5 - Captura 1)
   ========================================================================== */
.tabla-wrapper-card {
  background-color: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.tabla-scroll-area {
  overflow-x: auto;
  max-width: 100%;
}

.tabla-calificaciones {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

/* Cabeceras de Tabla */
.tabla-calificaciones thead {
  background-color: #ffffff;
  border-bottom: 1px solid var(--border-color);
}

.th-fija {
  padding: 16px 20px;
  font-size: 12px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.th-alumno {
  min-width: 260px;
}

.th-centrada {
  text-align: center;
  padding: 16px 14px;
}

.th-media-global, .th-tiempo-total {
  min-width: 110px;
}

.th-content-center {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.th-titulo-principal {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-main);
  text-transform: capitalize;
}

.th-subtitulo {
  font-size: 11px;
  color: var(--text-light);
  font-weight: 500;
}

/* Cabeceras rotadas estilo Edpuzzle (Captura 1) */
.th-app-rotada {
  min-width: 90px;
  max-width: 120px;
  padding: 10px 8px 14px 8px;
  text-align: center;
  vertical-align: bottom;
}

.th-rotada-wrap {
  height: 110px;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: 8px;
}

.th-rotada-texto {
  display: inline-block;
  transform: rotate(-55deg);
  transform-origin: bottom left;
  white-space: nowrap;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-main);
  max-width: 130px;
  overflow: hidden;
  text-overflow: ellipsis;
}

.th-rotada-avatar-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  border-top: 1px dashed var(--border-color);
  padding-top: 8px;
}

.th-rotada-avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 2px solid var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  background-color: #ffffff;
}

.th-rotada-conteo {
  font-size: 10.5px;
  font-weight: 600;
  color: var(--text-muted);
}

/* Filas de Alumnos */
.fila-alumno {
  border-bottom: 1px solid var(--border-subtle);
  transition: background-color 0.15s;
}

.fila-alumno:hover {
  background-color: #f8fafc;
}

.td-alumno {
  padding: 14px 20px;
  cursor: pointer;
}

.alumno-nombre-celda {
  display: flex;
  align-items: center;
  gap: 12px;
}

.alumno-avatar-circulo {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: #f1f5f9;
  color: var(--primary);
  border: 1px solid #e2e8f0;
  font-size: 13px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.alumno-nombre-texto {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text-main);
  transition: color 0.15s;
}

.fila-alumno:hover .alumno-nombre-texto {
  color: var(--primary);
  text-decoration: underline;
}

.alumno-chevron {
  color: var(--text-light);
  opacity: 0;
  transition: all 0.15s;
  margin-left: auto;
}

.fila-alumno:hover .alumno-chevron {
  opacity: 1;
  transform: translateX(3px);
}

.td-centrada {
  text-align: center;
  padding: 12px 14px;
}

.td-app-celda {
  cursor: pointer;
}

.texto-tiempo {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
}

/* ==========================================================================
   PILLS DE NOTA Y MAPA DE CALOR (Requisito 5 - Captura 1)
   ========================================================================== */
.pill-nota {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 52px;
  height: 34px;
  padding: 0 10px;
  border-radius: var(--radius-sm);
  border: 1.5px solid;
  font-size: 13.5px;
  font-weight: 700;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
  transition: transform 0.15s, box-shadow 0.15s;
}

.pill-nota:hover {
  transform: scale(1.06);
  box-shadow: 0 3px 6px rgba(0, 0, 0, 0.08);
}

/* Colores Oficiales del Mapa de Calor */
.nota-rojo {
  background-color: var(--heat-red-bg) !important;
  color: var(--heat-red-text) !important;
  border-color: var(--heat-red-border) !important;
}

.nota-naranja {
  background-color: var(--heat-orange-bg) !important;
  color: var(--heat-orange-text) !important;
  border-color: var(--heat-orange-border) !important;
}

.nota-amarillo {
  background-color: var(--heat-yellow-bg) !important;
  color: var(--heat-yellow-text) !important;
  border-color: var(--heat-yellow-border) !important;
}

.nota-verde {
  background-color: var(--heat-green-bg) !important;
  color: var(--heat-green-text) !important;
  border-color: var(--heat-green-border) !important;
}

.nota-vacio {
  background-color: #f8fafc !important;
  color: #94a3b8 !important;
  border-color: #e2e8f0 !important;
  font-weight: 500;
}

.tabla-footer-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  background-color: #f8fafc;
  border-top: 1px solid var(--border-color);
  font-size: 13px;
  color: var(--text-muted);
}

/* Leyenda del Mapa de Calor */
.leyenda-mapa-calor {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 12px;
}

.leyenda-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.leyenda-color-box {
  width: 14px;
  height: 14px;
  border-radius: 3px;
  border: 1px solid;
}

/* ==========================================================================
   MODAL DETALLE DE ALUMNO (Requisito 6 - Semejante a Captura 2)
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(15, 23, 42, 0.55);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 15000;
  padding: 20px;
  box-sizing: border-box;
}

/* Modal Detalle Alumno (Idéntico a Captura 2 - Con Scroll Completo de Actividades) */
.modal-card-detalle-alumno {
  background-color: #ffffff;
  border-radius: 14px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.28);
  width: 100%;
  max-width: 940px;
  height: 88vh;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: modal-slide-up 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-alumno-header {
  flex-shrink: 0;
  padding: 24px 32px 18px 32px;
  border-bottom: 1px solid #e5e7eb;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  background-color: #ffffff;
  z-index: 10;
}

.modal-alumno-scroll-body {
  flex: 1 1 auto;
  min-height: 0; /* IMPRESCINDIBLE: Permite al flex-child contraerse y habilitar el scroll vertical */
  overflow-y: auto;
  overflow-x: hidden;
  padding: 16px 32px 36px 32px;
  -webkit-overflow-scrolling: touch;
  scroll-behavior: smooth;
}

/* Scrollbar moderno, elegante y claramente visible */
.modal-alumno-scroll-body::-webkit-scrollbar {
  width: 9px;
}

.modal-alumno-scroll-body::-webkit-scrollbar-track {
  background: #f8fafc;
  border-radius: 6px;
}

.modal-alumno-scroll-body::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 6px;
  border: 2px solid #f8fafc;
}

.modal-alumno-scroll-body::-webkit-scrollbar-thumb:hover {
  background: #94a3b8;
}

.modal-header-info {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.modal-alumno-title {
  font-size: 26px;
  font-weight: 700;
  color: #111827;
  letter-spacing: -0.4px;
}

.modal-alumno-meta-global {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 4px;
}

.modal-nota-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 52px;
  height: 32px;
  padding: 0 10px;
  border-radius: 4px;
  border: 1px solid;
  font-size: 15px;
  font-weight: 700;
}

.modal-nota-label {
  font-size: 12px;
  font-weight: 700;
  color: #6b7280;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.modal-alumno-tiempo-txt {
  font-size: 14px;
  color: #4b5563;
  margin-top: 4px;
}

/* Navegación Anterior / 1/29 / Siguiente (Captura 2) */
.modal-header-nav-controles {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 14px;
}

.modal-paginacion-bar {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-nav-modal {
  background-color: #ffffff;
  border: 1px solid #d1d5db;
  color: #374151;
  padding: 8px 18px;
  border-radius: 4px;
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
}

.btn-nav-modal:hover:not(:disabled) {
  background-color: #f9fafb;
  border-color: #9ca3af;
}

.btn-nav-modal:disabled {
  background-color: #f3f4f6;
  border-color: transparent;
  color: #9ca3af;
  cursor: not-allowed;
}

.modal-contador-paginas {
  font-size: 14px;
  font-weight: 600;
  color: #4b5563;
  min-width: 45px;
  text-align: center;
}

/* Cajas de Fecha en Modal (Captura 2) */
.modal-fechas-preview {
  display: flex;
  align-items: center;
  gap: 10px;
}

.modal-fecha-box {
  background-color: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: 4px;
  padding: 6px 12px;
  font-size: 12px;
  display: flex;
  flex-direction: column;
  min-width: 135px;
}

.modal-fecha-box span {
  font-size: 10.5px;
  color: #6b7280;
  font-weight: 500;
  margin-bottom: 2px;
}

.modal-fecha-box-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
}

.modal-fecha-box-row strong {
  font-size: 14px;
  font-weight: 700;
  color: #111827;
}

.modal-fecha-box-row small {
  font-size: 10.5px;
  color: #9ca3af;
}

/* Agrupación por Aplicación (Requisito 6) */
.modal-seccion-app {
  margin-top: 20px;
  padding-top: 14px;
  border-top: 1px dashed #e5e7eb;
}

.modal-seccion-app:first-child {
  margin-top: 6px;
  padding-top: 0;
  border-top: none;
}

.modal-seccion-app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 16px;
  margin-bottom: 8px;
  background-color: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
}

.app-header-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.app-header-icono {
  font-size: 18px;
}

.app-header-textos h4 {
  font-size: 13.5px;
  font-weight: 700;
  color: #1e293b;
  margin: 0;
}

.app-header-sub {
  font-size: 10.5px;
  color: #64748b;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

.app-header-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.app-header-media-label {
  font-size: 11.5px;
  font-weight: 600;
  color: #64748b;
}

/* Filas de Pruebas (Captura 2) */
.modal-item-prueba {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 16px 20px;
  border-bottom: 1px solid #f3f4f6;
  transition: background-color 0.15s;
}

.modal-item-prueba:last-child {
  border-bottom: none;
}

.modal-item-prueba:hover {
  background-color: #fafbfc;
}

.prueba-col-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.prueba-titulo {
  font-size: 13.5px;
  font-weight: 700;
  color: #111827;
  text-transform: uppercase;
  letter-spacing: -0.2px;
}

.prueba-meta {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: #6b7280;
}

.prueba-col-progreso {
  width: 140px;
  flex-shrink: 0;
  display: flex;
  justify-content: flex-end;
}

.barra-progreso-verde-linea {
  width: 100%;
  height: 3px;
  background-color: #059669;
  border-radius: 2px;
}

/* ==========================================================================
   MODAL DE LOGIN DOCENTE (Requisito 2: Bach*1750)
   ========================================================================== */
.modal-login-card {
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-modal);
  width: 100%;
  max-width: 440px;
  padding: 36px 32px;
  text-align: center;
  animation: modal-slide-up 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.login-brand-logo {
  height: 42px;
  margin-bottom: 20px;
  object-fit: contain;
}

.login-candado-icon {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background-color: #eff6ff;
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px auto;
}

.modal-login-card h3 {
  font-size: 20px;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 6px;
}

.modal-login-card p {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.login-input-wrap {
  margin-bottom: 18px;
}

.login-input {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 14px;
  color: var(--text-main);
  outline: none;
  transition: all 0.2s;
  text-align: center;
  letter-spacing: 1px;
}

.login-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-focus);
}

.input-shake {
  animation: shake 0.4s ease-in-out;
  border-color: #ef4444 !important;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20%, 60% { transform: translateX(-8px); }
  40%, 80% { transform: translateX(8px); }
}

.login-error {
  font-size: 12px;
  color: #dc2626;
  font-weight: 600;
  margin-top: 8px;
  display: block;
}

.btn-login-submit {
  width: 100%;
  background-color: var(--primary);
  color: #ffffff;
  border: none;
  border-radius: var(--radius-md);
  padding: 12px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-login-submit:hover {
  background-color: var(--primary-hover);
}

/* ==========================================================================
   MODAL DE DESCARGA (Requisito 7)
   ========================================================================== */
.modal-descarga-card {
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-modal);
  width: 100%;
  max-width: 500px;
  padding: 28px 24px;
}

.descarga-opciones-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 20px 0;
}

.descarga-radio-card {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.15s;
}

.descarga-radio-card:hover {
  background-color: #f8fafc;
  border-color: #cbd5e1;
}

.descarga-radio-card input[type="radio"] {
  margin-top: 3px;
}

.descarga-radio-textos strong {
  display: block;
  font-size: 14px;
  color: var(--text-main);
}

.descarga-radio-textos small {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 2px;
}

.select-app-descarga {
  width: 100%;
  padding: 10px 14px;
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  color: var(--text-main);
  background-color: #ffffff;
  outline: none;
  margin-top: 8px;
}

/* ==========================================================================
   MODAL AÑADIR APP + (Requisito 8)
   ========================================================================== */
.modal-anadir-card {
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-modal);
  width: 100%;
  max-width: 520px;
  padding: 28px 26px;
}

.form-campo {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
  text-align: left;
}

.form-campo label {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-main);
}

.form-input {
  padding: 10px 14px;
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  color: var(--text-main);
  outline: none;
  transition: all 0.2s;
}

.form-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-focus);
}

.form-ayuda {
  font-size: 11.5px;
  color: var(--text-muted);
  line-height: 1.4;
}

/* Modal Configuración de Hojas */
.modal-config-card {
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-modal);
  width: 100%;
  max-width: 720px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.modal-config-scroll {
  padding: 20px 24px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.config-app-card {
  background-color: #f8fafc;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px;
}

.config-app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.config-app-title {
  display: flex;
  align-items: center;
  gap: 8px;
}

.badge-vinculo {
  font-size: 11px;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: var(--radius-pill);
}

.badge-vinculo.online {
  background-color: #dcfce7;
  color: #166534;
}

.badge-vinculo.offline {
  background-color: #fee2e2;
  color: #991b1b;
}

.config-app-input-row {
  display: flex;
  gap: 8px;
  margin-top: 6px;
}

.input-app-url {
  flex: 1;
  padding: 8px 12px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 13px;
  outline: none;
}

.btn-guardar-url-app {
  background-color: var(--primary);
  color: #ffffff;
  border: none;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
}

.btn-eliminar-app-custom {
  background-color: #fee2e2;
  border: none;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

/* ==========================================================================
   UTILIDADES (LOADER, TOASTS, HELPER CLASSES)
   ========================================================================== */
.hidden {
  display: none !important;
}

.app-loader-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(2px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  z-index: 2000;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3.5px solid #e2e8f0;
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.loader-text {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
}

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

.toast-item {
  background-color: #0f172a;
  color: #ffffff;
  padding: 12px 20px;
  border-radius: var(--radius-md);
  font-size: 13.5px;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  animation: toast-in 0.25s ease-out;
}

.toast-success { background-color: #059669; }
.toast-error { background-color: #dc2626; }
.toast-warning { background-color: #d97706; }

@keyframes toast-in {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.toast-fadeout {
  opacity: 0;
  transform: translateY(-8px);
  transition: all 0.3s;
}

/* Responsive */
@media (max-width: 992px) {
  .sidebar {
    width: 230px;
  }
  .main-content {
    padding: 18px 20px 40px 20px;
  }
}

@media (max-width: 768px) {
  .app-layout {
    flex-direction: column;
  }
  .sidebar {
    width: 100%;
    border-right: none;
    border-bottom: 1px solid var(--border-color);
  }
  .topbar-center {
    display: none;
  }
}


/* ==========================================================================
   LANDING PAGE PORTAL DE ACCESO DOCENTE (Seguridad & RGPD)
   ========================================================================== */

#app-dashboard-wrapper.hidden {
  display: none !important;
}

.landing-portal,
.landing-page-portal {
  min-height: 100vh;
  width: 100%;
  background: radial-gradient(circle at top right, #e0e7ff 0%, #f1f5f9 45%, #e2e8f0 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 18px;
  position: relative;
  z-index: 10000;
  box-sizing: border-box;
}

.landing-card-box {
  background: #ffffff;
  border-radius: 20px;
  box-shadow: 0 25px 60px -15px rgba(15, 23, 42, 0.18), 0 0 1px 1px rgba(0, 0, 0, 0.04);
  max-width: 640px;
  width: 100%;
  margin: 0 auto;
  padding: 42px 46px;
  display: flex;
  flex-direction: column;
  animation: landingFadeIn 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  border: 1px solid rgba(226, 232, 240, 0.9);
}

@keyframes landingFadeIn {
  from {
    opacity: 0;
    transform: translateY(18px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.landing-brand-area {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 22px;
  padding-bottom: 20px;
  border-bottom: 1px solid #f1f5f9;
}

.landing-logo-img {
  height: 48px;
  max-width: 240px;
  object-fit: contain;
}

.landing-badge-security {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background-color: #ecfdf5;
  color: #065f46;
  border: 1px solid #a7f3d0;
  padding: 6px 12px;
  border-radius: 9999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.2px;
}

.landing-badge-security svg,
.landing-badge-security i {
  color: #10b981;
}

.landing-main-title {
  font-size: 26px;
  font-weight: 800;
  color: #0f172a;
  margin: 0 0 8px 0;
  line-height: 1.25;
  letter-spacing: -0.5px;
}

.landing-lead {
  font-size: 14px;
  color: #64748b;
  margin: 0 0 20px 0;
  line-height: 1.5;
}

.landing-lead strong {
  color: #1e293b;
}

.landing-bloques-preview {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 18px;
}

.bloque-preview-card {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  padding: 12px 14px;
  display: flex;
  align-items: flex-start;
  gap: 11px;
}

.bloque-preview-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background-color: #e0e7ff;
  color: #3b82f6;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
}

.bloque-card-actividades .bloque-preview-icon {
  background-color: #fef3c7;
  color: #d97706;
}

.bloque-preview-texts,
.bloque-preview-info {
  display: flex;
  flex-direction: column;
}

.bloque-preview-texts strong,
.bloque-preview-info strong {
  font-size: 13px;
  color: #1e293b;
  margin-bottom: 2px;
  line-height: 1.2;
}

.bloque-preview-texts small,
.bloque-preview-info small {
  font-size: 11.5px;
  color: #64748b;
  line-height: 1.35;
}

.landing-rgpd-box {
  background-color: #fffbeb;
  border: 1px solid #fde68a;
  border-radius: 10px;
  padding: 12px 16px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 12px;
  color: #92400e;
  line-height: 1.45;
  margin-bottom: 22px;
}

.rgpd-icon svg,
.landing-rgpd-box i {
  color: #d97706;
  flex-shrink: 0;
  margin-top: 2px;
}

.rgpd-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.landing-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.landing-input-label,
.landing-label {
  font-size: 13.5px;
  font-weight: 700;
  color: #334155;
  margin-bottom: 4px;
}

.landing-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  width: 100%;
}

.landing-input-prefix-icon {
  position: absolute;
  left: 14px;
  color: #94a3b8;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}

.landing-password-field {
  width: 100%;
  padding: 13px 44px 13px 42px !important;
  font-size: 15px;
  border: 1.5px solid #cbd5e1;
  border-radius: 10px;
  background-color: #ffffff;
  color: #0f172a;
  font-weight: 500;
  outline: none;
  transition: all 0.2s;
  letter-spacing: 0.5px;
  box-sizing: border-box;
}

.landing-password-field:focus {
  border-color: #3b82f6;
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.15);
}

.btn-toggle-eye {
  position: absolute;
  right: 12px;
  background: none;
  border: none;
  color: #94a3b8;
  cursor: pointer;
  padding: 6px 8px;
  border-radius: 6px;
  font-size: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.15s;
}

.btn-toggle-eye:hover {
  color: #475569;
}

.landing-error-msg,
.landing-error {
  background-color: #fef2f2;
  border: 1px solid #fecaca;
  color: #b91c1c;
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 12.5px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 4px;
}

.landing-error-msg.hidden,
.landing-error.hidden {
  display: none !important;
}

.btn-landing-entrar {
  margin-top: 8px;
  background: linear-gradient(135deg, #1d4ed8 0%, #2563eb 100%);
  color: #ffffff;
  border: none;
  border-radius: 10px;
  padding: 14px 24px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.35);
  transition: all 0.2s;
}

.btn-landing-entrar:hover {
  background: linear-gradient(135deg, #1e40af 0%, #1d4ed8 100%);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(37, 99, 235, 0.45);
}

.btn-landing-entrar:active {
  transform: translateY(0);
}

.landing-footer-note {
  margin-top: 22px;
  padding-top: 14px;
  border-top: 1px solid #f1f5f9;
  text-align: center;
  font-size: 11.5px;
  color: #94a3b8;
}
}

.btn-landing-entrar:active {
  transform: translateY(0);
}


/* ==========================================================================
   INDICADOR DE SINCRONIZACIÓN EN TIEMPO REAL (TopBar)
   ========================================================================== */

.live-sync-indicator {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 9999px;
  padding: 5px 12px 5px 10px;
  font-size: 12px;
}

.live-sync-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background-color: #10b981;
  box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  animation: pulse-dot 1.8s infinite;
}

@keyframes pulse-dot {
  0% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  }
  70% {
    transform: scale(1);
    box-shadow: 0 0 0 6px rgba(16, 185, 129, 0);
  }
  100% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
  }
}

.live-sync-text {
  font-weight: 700;
  color: #065f46;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-size: 11px;
}

.live-sync-time {
  color: #64748b;
  font-size: 11.5px;
  border-left: 1px solid #cbd5e1;
  padding-left: 8px;
}

.btn-live-sync-refresh {
  background: none;
  border: none;
  color: #64748b;
  cursor: pointer;
  padding: 3px;
  margin-left: 4px;
  border-radius: 4px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  font-size: 11px;
}

.btn-live-sync-refresh:hover {
  color: #2563eb;
  background-color: #eff6ff;
}

.btn-live-sync-refresh.rotating i {
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}


/* ==========================================================================
   MODAL ALUMNO: AGRUPACIÓN EN 2 BLOQUES (Lenguaje Musical / Actividades)
   ========================================================================== */

.modal-bloque-grupo {
  margin-top: 24px;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  overflow: hidden;
  background-color: #ffffff;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.modal-bloque-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  border-bottom: 1px solid #e2e8f0;
}

.modal-bloque-banner.banner-lenguaje_musical {
  background: linear-gradient(90deg, #eff6ff 0%, #f8fafc 100%);
  border-left: 4px solid #2563eb;
}

.modal-bloque-banner.banner-actividades_interactivas {
  background: linear-gradient(90deg, #fefce8 0%, #f8fafc 100%);
  border-left: 4px solid #d97706;
}

.bloque-banner-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.banner-lenguaje_musical .bloque-banner-left i {
  color: #2563eb;
  font-size: 16px;
}

.banner-actividades_interactivas .bloque-banner-left i {
  color: #d97706;
  font-size: 16px;
}

.bloque-banner-titulo {
  font-size: 14.5px;
  font-weight: 800;
  color: #0f172a;
  margin: 0;
  letter-spacing: -0.2px;
}

.bloque-banner-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.bloque-badge-promedio {
  font-size: 12.5px;
  color: #475569;
  font-weight: 500;
}

.bloque-badge-promedio strong {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 3px 10px;
  border-radius: 6px;
  margin-left: 6px;
  font-weight: 800;
  font-size: 13.5px;
  border: 1px solid;
}

.badge-promedio-verde {
  background-color: #ecfdf5;
  color: #047857;
  border-color: #a7f3d0 !important;
}

.badge-promedio-amarillo {
  background-color: #fefce8;
  color: #854d0e;
  border-color: #fde047 !important;
}

.badge-promedio-naranja {
  background-color: #fff7ed;
  color: #c2410c;
  border-color: #fed7aa !important;
}

.badge-promedio-rojo {
  background-color: #fef2f2;
  color: #b91c1c;
  border-color: #fecaca !important;
}

.badge-promedio-gris {
  background-color: #f1f5f9;
  color: #64748b;
  border-color: #cbd5e1 !important;
}

.modal-bloque-apps-lista {
  padding: 8px 16px 16px 16px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.modal-bloque-apps-lista .modal-seccion-app {
  margin-top: 10px;
  border-top: none;
  padding-top: 0;
}

/* Badges de bloque en cabecera rotada de la tabla */
.th-rotada-bloque-tag {
  display: inline-block;
  font-size: 9px;
  font-weight: 700;
  text-transform: uppercase;
  padding: 2px 6px;
  border-radius: 4px;
  letter-spacing: 0.3px;
  margin-bottom: 4px;
  white-space: nowrap;
}

.th-rotada-bloque-tag.tag-lenguaje {
  background-color: #dbeafe;
  color: #1e40af;
  border: 1px solid #bfdbfe;
}

.th-rotada-bloque-tag.tag-actividad {
  background-color: #fef3c7;
  color: #92400e;
  border: 1px solid #fde68a;
}