/* ==========================================================================
   1. VARIABLES Y ESTILOS GLOBALES (BASE DEL USUARIO)
   ========================================================================== */
:root {
  --pc-blue: #1273EB;
  --pc-yellow: #FFD400;
  --pc-green: #1DB954;
  --pc-red: #E91E63;
  --pc-bg: #f4f7f6;
  --pc-card-bg: #FFFFFF;
  --pc-border-color: #e0e0e0;
  --pc-text-primary: #111827;
  --pc-text-secondary: #6b7280;
  --pc-radius: 16px;
  --pc-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  --pc-font-family: 'Poppins', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --pc-radius-lg: 24px;
  --pc-radius-sm: 8px;
  --pc-radius-md: 12px;
  --pc-shadow-md: 0 8px 24px rgba(0, 0, 0, 0.1);
  --pc-shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
  --pc-gap: 20px;
  --pc-border: #e5e7eb;
  --pc-text: #111827;
}

body {
  font-family: var(--pc-font-family);
  color: var(--pc-text-primary);
  background-color: var(--pc-bg);
}

.pc-title { font-size: 28px; font-weight: 700; margin: 10px 0; }
.pc-subtitle { font-size: 20px; font-weight: 700; margin: 24px 0 12px; }
.pc-subtitle-small { font-size: 16px; font-weight: 600; margin: 0 0 10px; }
.pc-link { color: var(--pc-blue); text-decoration: none; font-weight: 500; }
.pc-row-between { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }

/* ==========================================================================
   2. PÁGINAS DE AUTENTICACIÓN (LOGIN Y REGISTRO)
   ========================================================================== */
.pc-auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
}
.pc-auth-card {
    max-width: 520px;
    width: 100%;
    padding: 20px 0;
}
.pc-auth-logo { text-align: center; margin-bottom: 24px; }
.pc-auth-logo img { height: 70px !important; width: auto; }
.pc-auth-title-fallback { text-align: center; }
.pc-auth-title { text-align: center; font-size: 32px; font-weight: 800; margin-bottom: 8px; color: var(--pc-text-primary); }
.pc-auth-subtitle { text-align: center; color: var(--pc-text-secondary); margin-bottom: 32px; }
.pc-auth-card .pc-form { display: flex; flex-direction: column; }
.pc-auth-card .pc-form label { font-weight: 600; color: #374151; margin: 14px 0 5px 0; display: block; font-size: 14px; }
.pc-auth-card .pc-form input[type=text],
.pc-auth-card .pc-form input[type=email],
.pc-auth-card .pc-form input[type=password],
.pc-auth-card .pc-form input[type=number],
.pc-auth-card .pc-form input[type=tel],
.pc-auth-card .pc-form input[type="date"],
.pc-auth-card .pc-form select,
.pc-auth-card .pc-form textarea, .pc-field-input input {
    border: 1px solid var(--pc-border-color) !important;
    border-radius: 12px !important;
    padding: 12px 16px !important;
    font-size: 16px !important;
    width: 100% !important;
    margin: 0 !important;
    transition: border-color 0.2s, box-shadow 0.2s;
    -webkit-border-radius: 12px !important;
    -moz-border-radius: 12px !important;
    -ms-border-radius: 12px !important;
    -o-border-radius: 12px !important;
}
.pc-auth-card .pc-form > *:not(label) { margin-bottom: 16px; }
.pc-auth-card .pc-form input:focus, .pc-auth-card .pc-form select:focus, .pc-auth-card .pc-form textarea:focus, .pc-field-input input:focus, .pc-auth-card .pc-form input[type="date"]:focus {
    outline: none;
    border-color: var(--pc-blue);
    box-shadow: 0 0 0 3px rgba(18, 115, 235, 0.1);
}
.pc-pass { position: relative; }
.pc-auth-card .pc-pass .pc-toggle { border: none; background: transparent; color: var(--pc-red); position: absolute; right: 15px; top: 50%; transform: translateY(-50%); cursor: pointer; font-size: 20px; padding: 0; }
.pc-auth-card .pc-form .pc-btn.pc-primary { padding: 14px; border-radius: 12px; font-size: 16px; margin-top: 16px; }
.pc-auth-footer { text-align: center; margin-top: 24px; font-size: 14px; color: var(--pc-text-secondary); }
.pc-auth-footer a { color: var(--pc-red); font-weight: 600; text-decoration: none; }
.pc-register-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px 20px; }
.pc-register-grid .pc-grid-span-2 { grid-column: span 2; }
.pc-register-grid > div { margin-bottom: 0; }
.pc-check { display: flex; align-items: center; gap: 8px; font-weight: 500; }
.pc-check span { font-size: 14px; }

/* ==========================================================================
   3. DASHBOARDS Y COMPONENTES (BASE DEL USUARIO)
   ========================================================================== */
.pc-dashboard-grid { display: grid; grid-template-columns: 1fr; gap: 24px; max-width: 1200px; margin: 20px auto; padding: 0 15px; }
@media (min-width: 992px) { .pc-dashboard-grid { grid-template-columns: 1fr 320px; } }
.pc-main-content { display: flex; flex-direction: column; gap: 20px; }
.pc-sidebar { display: flex; flex-direction: column; gap: 20px; }
.pc-card { background: var(--pc-card-bg); border: 1px solid var(--pc-border-color); border-radius: var(--pc-radius); box-shadow: var(--pc-shadow); padding: 12px; }
.pc-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.pc-btn { border: 0; border-radius: 999px; padding: 10px 22px; cursor: pointer; transition: .2s ease; font-weight: 600; font-size: 15px; text-decoration: none; display: inline-block; text-align: center; }
.pc-primary { background: var(--pc-blue); color: #fff; }
.pc-primary:hover { background: #0056b3; }
.pc-secondary { background: var(--pc-card-bg); color: var(--pc-text-primary); border: 1px solid var(--pc-border-color); }
.pc-secondary:hover { background: var(--pc-bg); color: #000; }
.pc-info { background: var(--pc-yellow); color: #000; border: 1px solid var(--pc-yellow); }
.pc-info:hover { background: #b79801; color: #000; }
.pc-outline { background: transparent; border: 2px solid var(--pc-blue); color: var(--pc-blue); font-size: 13px; }
.pc-small { padding: 6px 14px; font-size: 13px; }
.pc-outline-red { background: transparent; border: 2px solid var(--pc-red); color: var(--pc-red); }
.pc-outline-red:hover { background: var(--pc-red); color: #fff; }

/* === Componentes Específicos del Dashboard === */
.pc-welcome-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 20px; flex-wrap: wrap; }
.pc-welcome-header p { color: var(--pc-text-secondary); margin: 0; }
.pc-stats-grid { display: flex; gap: 12px; }
.pc-stat-card { background: var(--pc-bg); border-radius: 12px; padding: 8px 16px; text-align: center; }
.pc-stat-card span { font-size: 12px; color: var(--pc-text-secondary); }
.pc-stat-card strong { display: block; font-size: 18px; }
.pc-cursos-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 12px; }
.pc-progress-card { background: var(--pc-card-bg); border-radius: var(--pc-radius); overflow: hidden; display: flex; flex-direction: column; box-shadow: var(--pc-shadow); }
article.pc-card p { font-size: 14px; }
.pc-progress-card-color-bar { height: 10px; }
.pc-progress-card-color-bar[data-color="blue"] { background-color: var(--pc-blue); }
.pc-progress-card-color-bar[data-color="red"] { background-color: var(--pc-red); }
.pc-progress-card-color-bar[data-color="green"] { background-color: var(--pc-green); }
.pc-progress-card-color-bar[data-color="yellow"] { background-color: var(--pc-yellow); }
.pc-progress-card-content { padding: 16px; flex-grow: 1; display: flex; flex-direction: column; }
.pc-progress-card h4 { font-size: 18px; margin: 0 0 10px; }
.pc-progress-card span { font-size: 12px; color: var(--pc-text-secondary); margin-top: 4px; }
.pc-progress-card-footer { margin-top: auto; padding-top: 15px; }
.pc-progress-bar-small { background: #e9ecef; border-radius: 99px; height: 7px; overflow: hidden; margin: 10px 0;}
.pc-progress-bar-inner { background: var(--pc-green); height: 100%; border-radius: 99px; transition: width 0.3s ease; }
.pc-profile-card { text-align: center; }
.pc-profile-card img { border-radius: 50%;   border: 4px solid #fff;   box-shadow: var(--pc-shadow-md);   width: 80px;   height: 80px;}
.pc-profile-card h4 { margin: 0 0 4px; }
.pc-profile-card p { margin: 0 0 16px; color: var(--pc-text-secondary); font-size: 14px; }
.pc-profile-nav { display: flex; flex-direction: column; gap: 8px; text-align: left; margin-bottom: 16px; }
.pc-profile-nav a { padding: 8px 12px; border-radius: 8px; text-decoration: none; color: var(--pc-text-primary); }
.pc-profile-nav a:hover { background: var(--pc-bg); }
.pc-logout-link { color: var(--pc-red); font-weight: 500; text-decoration: none; }
.pc-checklist, .pc-activity-feed { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; font-size: 14px; }
.pc-checklist li, .pc-activity-feed li { display: flex; align-items: center; gap: 8px; }
.pc-stats-overview { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; margin-top: 20px;}
button.pc-btn.pc-secondary.pc-small.pc-back-to-dashboard, button.pc-btn.pc-secondary.pc-small.pc-view-group-details, .pc-btn.pc-secondary.pc-back-to-student-dashboard, button.pc-btn.pc-secondary.pc-view-group-details, button.pc-btn.pc-secondary.pc-back-to-dashboard{ width: min-content; margin: 5px 0; padding: 10px 20px; }
button.pc-btn.pc-secondary.pc-small.pc-back-to-dashboard:hover, button.pc-btn.pc-secondary.pc-small.pc-view-group-details:hover, .pc-btn.pc-secondary.pc-back-to-student-dashboard:hover, button.pc-btn.pc-secondary.pc-view-group-details:hover, button.pc-btn.pc-secondary.pc-back-to-dashboard:hover { color: #fff; background-color: #1E88E5 !important; }
form#pc-add-alumno-form, form#pc-create-subgroup-form { display: flex ; gap: 6px; }
form#pc-add-alumno-form input, form#pc-create-subgroup-form input { border-radius: 10px; border: 1px solid #cecece; font-size: 15px; }
table#pc-alumnos-table { margin-top: 20px; }
form#pc-create-subgroup-form button { background: #FFD700; border-radius: 10px; -webkit-border-radius: 10px; -moz-border-radius: 10px; -ms-border-radius: 10px; -o-border-radius: 10px; }
form#pc-create-subgroup-form button:hover { color: #fff; background: #000; }
.pc-btn.pc-outline.pc-small.pc-view-entrega:hover,button.pc-btn.pc-outline.pc-small.pc-view-group-details:hover,button.pc-btn.pc-outline.pc-small.pc-view-task-progress:hover { color: #fff; background: var(--pc-blue); border-color: var(--pc-blue); }
article.pc-card h4 { font-size: 20px; font-weight: 700; }
table.pc-table button.pc-btn.pc-small.pc-view-entrega {     border: 1px solid #c36; }
@media (min-width: 768px) { .pc-stats-overview { grid-template-columns: repeat(4, 1fr); } }
.pc-stats-overview .pc-card { text-align: center; padding: 20px; }
article.pc-card h3 {font-size: 20px;font-weight: 600; margin-bottom: 5px;}
a.pc-btn.pc-primary.pc-small { font-size: 14px; width: 100%; padding: 10px; background: #075e54; }
.pc-stars { color: var(--pc-yellow); font-size: 1.25rem; letter-spacing: 0px; font-weight: 700; }
article.pc-card div img { width: 100%; object-fit: contain; height: 200px; }
.stat-value { font-size: 32px; font-weight: 700; color: var(--pc-blue); }
.stat-label { font-size: 14px; color: var(--pc-text-secondary); margin-top: 4px; }
.tutor-stats { display: flex; justify-content: center; gap: 20px; margin: 16px 0; font-size: 14px; }
.tutor-stats strong { display: block; font-size: 18px; text-align: center; }
.pc-sidebar .pc-form { display: flex; flex-direction: column; gap: 12px; }
.pc-sidebar .pc-form label { font-size: 14px; font-weight: 600; }
.pc-sidebar .pc-form input, .pc-sidebar .pc-form select { width: 100%; padding: 12px 16px; margin-top: 4px; border: 1px solid var(--pc-border-color); border-radius: 12px; font-size: 15px; transition: border-color 0.2s, box-shadow 0.2s; }
.pc-sidebar .pc-form input:focus, .pc-sidebar .pc-form select:focus { outline: none; border-color: var(--pc-blue); box-shadow: 0 0 0 3px rgba(18, 115, 235, 0.1); }

/* ==========================================================================
   4. MODALES Y COMPONENTES INTERACTIVOS
   ========================================================================== */
.pc-modal { position: fixed; inset: 0; background: rgba(17, 24, 39, 0.6); z-index: 10000; padding: 20px; display: none; align-items: center; justify-content: center; backdrop-filter: blur(8px); }
body.pc-modal-open { overflow: hidden; }
.pc-modal.is-visible { display: flex; }
.pc-modal__box { background: #fff; border-radius: var(--pc-radius); box-shadow: 0 20px 60px rgb(0 0 0 /.35); max-width: 700px; width: 100%; display: flex; flex-direction: column; max-height: 90vh; }
.pc-modal__header { display: flex; justify-content: space-between; align-items: center; padding: 16px 24px; border-bottom: 1px solid var(--pc-border-color); }
.pc-modal__title { font-size: 20px; font-weight: 700; margin: 0; }
.pc-modal__close { border: 0; background: #F3F4F6; border-radius: 50%; width: 32px; height: 32px; cursor: pointer; font-size: 21px; color: #6B7280; display: flex ; align-items: center; justify-content: center; }
.pc-modal__content { padding: 24px; overflow-y: auto; }
.pc-table-wrapper { overflow-x: auto; }
.pc-table { width: 100%; border-collapse: collapse; table-layout: fixed; margin: 0; padding: 0;}
.pc-table th, .pc-table td { padding: 12px; text-align: left; border-bottom: 1px solid var(--pc-border-color); font-size: 14px; }
.pc-table th { font-weight: 600; background-color: var(--pc-bg); }
.pc-badge { padding: 4px 10px; border-radius: 999px; font-size: .78rem; font-weight: 700; -webkit-border-radius: 999px; -moz-border-radius: 999px; -ms-border-radius: 999px; -o-border-radius: 999px; }
.pc-badge.ok { background: #e7f6ec; color: #0f5132; }
.pc-badge.pending { background: #fff3cd; color: #664d03; }
.pc-table td { vertical-align: middle; }

/* === Autocompletado === */
.ui-autocomplete { border: 1px solid var(--pc-border-color); border-radius: 12px; box-shadow: 0 5px 15px rgba(0,0,0,0.08); background: #FFFFFF; z-index: 10001 !important; list-style: none; padding: 8px; margin: 0; }
.ui-menu .ui-menu-item-wrapper { padding: 10px 15px; cursor: pointer; border-radius: 8px; font-size: 14px;}
.ui-menu .ui-menu-item-wrapper.ui-state-active { background: var(--pc-bg); border: none; color: var(--pc-text-primary); font-weight: 600; }

/* === Formulario de Entrega (Modal) === */
.pc-entrega-form-redesigned { display: flex; flex-direction: column; gap: 20px; }
.pc-entrega-form-grid { display: grid; grid-template-columns: 1fr; gap: 30px; }
@media (min-width: 768px) { .pc-entrega-form-grid { grid-template-columns: 1fr; } }
.pc-entrega-form-col-files, .pc-entrega-form-col-text { display: flex; flex-direction: column; gap: 16px; }
.pc-entrega-form-redesigned label { font-weight: 600; color: var(--pc-text-primary); display: flex; flex-direction: column; gap: 8px; }
.pc-entrega-form-redesigned input[type=text],
.pc-entrega-form-redesigned input[type=tel],
.pc-entrega-form-redesigned textarea,
.pc-entrega-form-redesigned select { border: 1px solid var(--pc-border-color); border-radius: 12px; padding: 10px 14px; font-size: 15px; width: 100%; }
.pc-entrega-form-redesigned input[type="file"] { border: 1px solid var(--pc-border-color); border-radius: 12px; padding: 8px; font-size: 14px; color: var(--pc-text-secondary); }
.pc-entrega-form-redesigned input[type="file"]::file-selector-button { margin-right: 10px; border: none; background: var(--pc-bg); padding: 8px 12px; border-radius: 8px; color: #374151; cursor: pointer; transition: background-color .2s; }
.pc-entrega-form-redesigned input[type="file"]::file-selector-button:hover { background: #e0e0e0; }
.pc-entrega-form-redesigned .pc-btn { width: 100%; padding: 14px; font-size: 16px; border-radius: 12px; }
table#pc-subgroups-table th, td { width: 50% !important; }

/* === Visor de Entrega Rediseñado (Modal) === */
/* ★★★ CORRECCIÓN IMAGEN 1px AQUÍ ★★★ */
.pc-entrega-view-redesigned img, 
.pc-entrega-files img, 
.pc-video {
    max-width: 100%;
    width: 100%; /* Forzar el ancho para evitar colapso */
    height: 250px;
    border-radius: 12px;
    display: block;
    border: 1px solid var(--pc-border-color); /* Borde sutil */
    object-fit: contain;
}
.pc-entrega-view-redesigned .pc-entrega-section { margin-bottom: 30px; }
.pc-entrega-view-redesigned h3 { border-bottom: 1px solid var(--pc-border-color); padding-bottom: 8px; margin-bottom: 16px; font-size: 18px; }
.pc-entrega-files { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.pc-entrega-files h4 { margin: 0 0 10px; font-size: 14px; color: var(--pc-text-secondary); }
.pc-entrega-libro { display: flex; flex-direction: column; gap: 20px; }
a.pc-btn.pc-primary.pc-small:hover { color: #fff; background: #0eb5a2; }
@media (min-width: 768px) { .pc-entrega-libro { flex-direction: row; align-items: flex-start; } }
.pc-entrega-libro-cover img { width: 150px; height: auto; border-radius: 8px; flex-shrink: 0; }
.pc-entrega-libro-details h4 { margin: 0; font-size: 20px; }
.pc-entrega-libro-details p { color: var(--pc-text-secondary); }
.pc-entrega-libro-details .pc-stars { color: var(--pc-yellow); font-size: 20px; }

/* === Tabla de Usuarios (Modal) === */
#pc-users-datatable_wrapper { font-size: 14px; }
#pc-users-datatable_filter input { margin-left: 8px; border: 1px solid var(--pc-border-color); border-radius: 8px; padding: 4px 8px; }
/* ==========================================================================
   5. INTERFAZ DE PESTAÑAS (TABS) PARA GESTIÓN
   ========================================================================== */
.pc-tabs-nav {
  display: flex;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--pc-border-color);
  margin-bottom: 20px;
}
.pc-tab-link {
  padding: 10px 18px;
  cursor: pointer;
  border: none;
  background: transparent;
  color: var(--pc-text-secondary);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 3px solid transparent;
  margin-bottom: -1px; /* Solapa el borde inferior */
}
.pc-tab-link.active, .pc-tab-link:hover {
  color: var(--pc-blue);
  border-bottom-color: var(--pc-blue);
}
.pc-tab-pane {
  display: none;
}
.pc-tab-pane.active {
  display: block;
}
.pc-management-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}
.swal2-container {
  z-index: 10050 !important;
}
@media (min-width: 768px) {
    .pc-management-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ==========================================================================
   8. NUEVOS ESTILOS DE ESTADO
   ========================================================================== */
.pc-badge.culminado {
    background-color: #e3f2fd; /* Un azul muy claro */
    color: #0d6efd; /* El color azul principal */
}

/* ==========================================================================
   9. STUDENT NAVIGATION PILLS (Alternative Style)
   ========================================================================== */
.pc-welcome-header {
    display: flex;
    flex-wrap: wrap; /* Permite que se apile en pantallas pequeñas */
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.pc-student-nav-pills {
    display: flex;
    gap: 0.5rem;
    background-color: var(--pc-bg); /* Un fondo sutil */
    padding: 0.5rem;
    border-radius: 999px; /* Forma de píldora para el contenedor */
    border: 1px solid var(--pc-border-color);
}

.pc-nav-pill {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--pc-text-secondary);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 999px; /* Forma de píldora para los enlaces */
    transition: color 0.2s, background-color 0.2s;
}

.pc-nav-pill:hover {
    color: var(--pc-text-primary);
    background-color: #e9ecef; /* Un hover sutil */
}

.pc-nav-pill.active {
    color: #fff;
    background-color: var(--pc-blue);
    box-shadow: 0 2px 8px rgba(13, 110, 253, 0.3);
}

@media (max-width: 768px) {
    .pc-welcome-header {
        flex-direction: column;
        align-items: stretch; /* Ocupa todo el ancho */
    }
    .pc-student-nav-pills {
        justify-content: center;
    }
}

/* ==========================================================================
   10. GAMIFICATION & CERTIFICATE UI (Complemento)
   ========================================================================== */
.pc-course-progress-card {
    background-color: var(--pc-card-bg);
    border: 1px solid var(--pc-border-color);
    border-radius: var(--pc-radius-lg);
    box-shadow: var(--pc-shadow);
    padding: 1.5rem;
    margin-bottom: 2rem;
    -webkit-border-radius: var(--pc-radius-lg);
    -moz-border-radius: var(--pc-radius-lg);
    -ms-border-radius: var(--pc-radius-lg);
    -o-border-radius: var(--pc-radius-lg);
}
.pc-course-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 0.5rem;
}
.pc-course-header h3 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 700;
}
.pc-xp-counter {
    font-size: 1rem;
    font-weight: 700;
    color: #ff9800; /* Naranja para los puntos */
    background-color: #fff3e0;
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
}
.pc-main-progress-bar {
    height: 1.25rem;
    background-color: var(--pc-bg);
    border-radius: 999px;
    padding: 4px;
    margin-bottom: 1.5rem;
    border: 1px solid var(--pc-border-color);
}
.pc-main-progress-bar-inner {
    height: 100%;
    background-image: linear-gradient(45deg, var(--pc-green), #25d366);
    border-radius: 999px;
    transition: width 0.5s ease-in-out;
    box-shadow: 0 2px 5px rgba(22, 163, 74, 0.3);
}
.pc-course-progress-card .pc-cursos-grid {
    margin-top: 1.5rem; /* Añade espacio entre la barra de progreso y las tareas */
}
.pc-certificate-area {
    margin-top: 2rem;
    padding: 1.5rem;
    text-align: center;
    background-color: #e3f2fd;
    border: 2px dashed var(--pc-blue);
    border-radius: var(--pc-radius);
    font-weight: 600;
}
.pc-certificate-button {
    margin-top: 1rem;
    background-color: var(--pc-yellow);
    color: var(--pc-text-primary);
    border: none;
    font-size: 1rem;
}
.pc-certificate-button:hover {
    background-color: #ffc107;
    transform: translateY(-2px) scale(1.05);
}

/* ==========================================================================
   11. GAMIFICATION SIDEBAR & EXPLAINER
   ========================================================================== */
.pc-gamification-explainer {
    background-color: #e3f2fd;
    border: 1px solid #90caf9;
    border-left: 5px solid var(--pc-blue);
    padding: 1rem 1.5rem;
    margin-bottom: 1rem;
    border-radius: var(--pc-radius-sm);
    font-weight: 500;
    color: #1e3a8a;
}

.pc-pending-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.pc-pending-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem;
    background-color: var(--pc-bg);
    border-radius: var(--pc-radius-sm);
    font-size: 0.9rem;
}

.pending-task-title {
    font-weight: 600;
    color: var(--pc-text-primary);
}

.pending-task-xp {
    font-weight: 700;
    color: var(--pc-green);
    background-color: #e8f5e9;
    padding: 0.2rem 0.5rem;
    border-radius: 999px;
    font-size: 0.8rem;
}

.pc-activity-feed li {
    font-size: 0.9rem;
    color: var(--pc-text-secondary);
    font-weight: 500;
}

/* ==========================================================================
   12. VISTA DE ACTIVIDAD RECIENTE MEJORADA
   ========================================================================== */

/* Contenedor principal de la lista de actividades */
.pc-activity-feed {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 1.25rem; /* Aumentamos el espacio entre ítems */
}

/* Cada ítem de la lista */
.pc-activity-item {
    display: flex;
    align-items: flex-start; /* Alineamos al inicio para textos largos */
    gap: 1rem;
}

/* Contenedor del ícono */
.pc-activity-icon-wrapper {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #e8f5e9; /* Verde muy claro */
}

.pc-activity-icon {
    font-size: 1.25rem;
}

/* Contenedor para el texto y la fecha */
.pc-activity-details {
    display: flex;
    flex-direction: column;
}

/* Texto principal de la actividad */
.pc-activity-text {
    margin: 0;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--pc-text-primary);
    line-height: 1.4;
}

.pc-activity-text strong {
    font-weight: 700;
}

/* Estilo para la fecha/hora */
.pc-activity-timestamp {
    font-size: 0.7rem;
    color: var(--pc-text-secondary);
    margin-top: 0.05rem;
}

/* Estilo para cuando no hay actividades */
.pc-activity-item-empty,
.pc-pending-list .pc-activity-item-empty {
    font-size: 0.9rem;
    color: var(--pc-text-secondary);
    font-style: italic;
    padding: 1rem;
    background-color: var(--pc-bg);
    border-radius: var(--pc-radius-sm);
    text-align: center;
}

/* ==========================================================================
   13. VISTA DE ACTIVIDADES PENDIENTES (INFORMATIVA)
   ========================================================================== */

.pc-pending-feed {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.pc-pending-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem;
    background-color: var(--pc-bg);
    border-radius: var(--pc-radius-md);
    -webkit-border-radius: var(--pc-radius-md);
    -moz-border-radius: var(--pc-radius-md);
    -ms-border-radius: var(--pc-radius-md);
    -o-border-radius: var(--pc-radius-md);
}

.pc-pending-icon {
    font-size: 1.5rem;
}

.pc-pending-details {
    flex-grow: 1; /* Esto empuja los puntos XP hacia la derecha */
}

.pc-pending-title {
    font-weight: 600;
    color: var(--pc-text-primary);
    font-size: 0.9rem;
}

.pc-pending-xp {
    font-weight: 700;
    color: var(--pc-green);
    background-color: #e8f5e9;
    padding: 0.2rem 0.5rem;
    border-radius: 999px;
    font-size: 0.8rem;
    flex-shrink: 0; /* Evita que se encoja */
}

/* ==========================================================================
   14. TARJETA DE PERFIL (DISEÑO FINAL CON BARRA DE PROGRESO AJUSTADA)
   ========================================================================== */

.pc-profile-card {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
}

.pc-profile-card .avatar {
    border-radius: 50%;
    border: 4px solid #fff;
    box-shadow: var(--pc-shadow-md);
    width: 80px;
    height: 80px;
}

.pc-profile-name {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 700;
}

.pc-level-badge-compact {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    background-image: linear-gradient(135deg, var(--pc-blue) 0%, #63b3ed 100%);
    color: #fff;
    padding: 0.5rem 1rem;
    border-radius: var(--pc-radius-sm);
    box-shadow: 0 4px 10px -2px rgba(18, 115, 235, 0.4);
    -webkit-border-radius: var(--pc-radius-sm);
    -moz-border-radius: var(--pc-radius-sm);
    -ms-border-radius: var(--pc-radius-sm);
    -o-border-radius: var(--pc-radius-sm);
}

.pc-level-badge-compact .pc-level-icon {
    font-size: 1.5rem;
    line-height: 1;
}

.pc-level-badge-compact .pc-level-title {
    text-align: left;
    line-height: 1.2;
}

.pc-level-badge-compact .pc-level-name {
    display: block;
    font-size: 0.9rem;
    font-weight: 700;
}

.pc-level-badge-compact .pc-level-number {
    display: block;
    font-size: 0.75rem;
    font-weight: 500;
    opacity: 0.8;
}

.pc-level-progress {
    width: 100%;
    margin-top: 0.5rem;
}

/* Título ahora centrado */
.pc-progress-title {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--pc-text-secondary);
    margin: 0 0 0.5rem 0;
    text-align: center;
}

/* Estilos de la barra de progreso como en la imagen */
.pc-level-progress-bar {
    height: 16px; /* Hacemos la barra más gruesa */
    background-color: var(--pc-bg);
    border-radius: 999px;
    padding: 4px;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.06);
    border: 1px solid var(--pc-border-color);
}

.pc-level-progress-bar-inner {
    height: 100%;
    border-radius: 999px;
    transition: width 0.6s ease-in-out;
    background-color: var(--pc-yellow); /* Color amarillo base */
    /* Mismas franjas animadas */
    background-image: repeating-linear-gradient(
        -45deg,
        rgba(255, 255, 255, 0.25),
        rgba(255, 255, 255, 0.25) 10px,
        rgba(0, 0, 0, 0) 10px,
        rgba(0, 0, 0, 0) 20px
    );
    background-size: 200% 200%;
    animation: progress-animation 2s linear infinite;
}

.pc-level-progress-text {
    display: block;
    text-align: center;
    font-size: 0.85rem;
    color: var(--pc-text-secondary);
    margin-top: 0.5rem;
    font-weight: 500;
}

.pc-profile-card .pc-logout-link {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--pc-red);
    text-decoration: none;
    margin-top: 0.5rem;
}

/* ==========================================================================
   15. SISTEMA DE BARRAS DE PROGRESO UNIFICADO (CON COLORES DINÁMICOS)
   ========================================================================== */

.pc-progress-display, .pc-overview-progress {
    width: 100%;
    margin-top: auto;
}

.pc-progress-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 0.5rem;
}

.pc-progress-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--pc-text-primary);
}

.pc-progress-percentage,
.pc-progress-count {
    font-size: 0.9rem;
    font-weight: 700;
}

.pc-progress-bar-enhanced {
    height: 16px;
    background-color: var(--pc-bg);
    border-radius: 999px;
    padding: 4px;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.06);
    border: 1px solid var(--pc-border-color);
}

.pc-progress-bar-enhanced.small {
    height: 10px;
    padding: 2px;
}

.pc-progress-bar-inner.animated {
    height: 100%;
    border-radius: 999px;
    transition: width 0.6s ease-in-out;
    background-image: repeating-linear-gradient(
        -45deg,
        rgba(255, 255, 255, 0.25),
        rgba(255, 255, 255, 0.25) 10px,
        rgba(0, 0, 0, 0) 10px,
        rgba(0, 0, 0, 0) 20px
    );
    background-size: 200% 200%;
    animation: progress-animation 2s linear infinite;
}

/* --- NUEVOS MODIFICADORES DE COLOR PARA LA BARRA --- */
.pc-progress-bar-inner.green { background-color: var(--pc-green); }
.pc-progress-bar-inner.blue { background-color: var(--pc-blue); }
.pc-progress-bar-inner.grey { background-color: #d1d5db; background-image: none; animation: none; } /* Sin animación para 'No Iniciado' */

/* Animación de las franjas */
@keyframes progress-animation {
    0% { background-position: 0 0; }
    100% { background-position: 56px 0; }
}

.pc-progress-status {
    display: block;
    text-align: center;
    font-size: 0.85rem;
    font-weight: 600;
    margin-top: 0.75rem;
}

/* Colores para el texto de estado (ahora coinciden con la barra) */
.pc-progress-status.not-started { color: var(--pc-text-secondary); }
.pc-progress-status.in-progress { color: var(--pc-blue); }
.pc-progress-status.completed { color: var(--pc-green); }

/* ==========================================================================
   16. VISTA CREATIVA DE GRUPOS (CON BARRA DE PROGRESO UNIFICADA)
   ========================================================================== */

.pc-groups-overview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
}

.pc-group-overview-card {
    background-color: var(--pc-card-bg);
    border: 1px solid var(--pc-border-color);
    border-radius: var(--pc-radius);
    box-shadow: var(--pc-shadow);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: all 0.2s ease-in-out;
}

.pc-group-overview-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--pc-shadow-md);
}

.pc-overview-card-header {
    background-color: var(--pc-blue);
    background-image: linear-gradient(45deg, var(--pc-blue), #3b82f6);
    color: #fff;
    padding: 1.25rem 1.5rem;
}

.pc-overview-card-header h3 {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 700;
    text-shadow: 0 1px 2px rgba(0,0,0,0.2);
}

.pc-overview-card-body {
    padding: 1.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.pc-overview-stats {
    display: flex;
    justify-content: space-around;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.pc-stat-item { text-align: center; }
.pc-stat-icon { font-size: 1.5rem; line-height: 1; }
.pc-stat-label { display: block; font-size: 0.8rem; color: var(--pc-text-secondary); font-weight: 500; margin-top: 0.25rem; }
.pc-stat-value { display: block; font-size: 1rem; font-weight: 700; color: var(--pc-text-primary); }

.pc-overview-progress {
    margin-top: auto;
}

/* El footer no cambia */
.pc-overview-card-footer {
    background-color: var(--pc-bg);
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--pc-border-color);
}

.pc-overview-card-footer .pc-btn {
    width: 100%;
}

/* ==========================================================================
   16. NUEVO DISEÑO DE TARJETAS DE GRUPO (TUTOR/ADMIN)
   ========================================================================== */

.pc-cursos-grid {
    display: grid;
    gap: var(--pc-gap);
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
}

.pc-tutor-group-card {
    background-color: var(--pc-card-bg);
    border: 1px solid var(--pc-border-color);
    border-radius: var(--pc-radius);
    box-shadow: var(--pc-shadow);
    display: flex;
    flex-direction: column;
    transition: all 0.2s ease-in-out;
    -webkit-border-radius: var(--pc-radius);
    -moz-border-radius: var(--pc-radius);
    -ms-border-radius: var(--pc-radius);
    -o-border-radius: var(--pc-radius);
}

.pc-tutor-group-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--pc-shadow);
    border-color: #d1d5db;
}

.pc-group-card-body {
    padding: 1.25rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.pc-group-card-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin: 0 0 1rem;
    color: var(--pc-text);
}

.pc-group-avatar-stack {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
}

.pc-group-avatar-stack .avatar {
    border-radius: 50%;
    border: 2px solid var(--pc-card);
    margin-left: -10px;
    width: 32px;
    height: 32px;
}

.pc-group-avatar-stack .avatar:first-child {
    margin-left: 0;
}

.pc-group-avatar-stack .avatar-more {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background-color: var(--pc-bg);
    color: var(--pc-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 600;
    margin-left: -10px;
    border: 2px solid var(--pc-card);
}

.pc-group-stats {
    display: flex;
    gap: 1.5rem;
    font-size: 0.9rem;
    color: var(--pc-muted);
    font-weight: 500;
    margin-bottom: 1rem;
}

.pc-group-stats .pc-stat-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.pc-group-progress {
    margin-top: auto; /* Empuja el progreso al final */
}

.pc-group-card-footer {
    background-color: var(--pc-bg);
    padding: 0.75rem 1.25rem;
    border-top: 1px solid var(--pc-border);
    border-radius: 0 0 16px 16px;
    -webkit-border-radius: 0 0 16px 16px;
    -moz-border-radius: 0 0 16px 16px;
    -ms-border-radius: 0 0 16px 16px;
    -o-border-radius: 0 0 16px 16px;
}

.pc-group-card-footer .pc-btn {
    width: 100%;
}

/* ==========================================================================
   17. NUEVO DISEÑO DE DETALLE DE GRUPO (TUTOR/ADMIN)
   ========================================================================== */

.pc-detail-view-card, .pc-detail-view-card {
    background: var(--pc-card);
    border: 1px solid var(--pc-border);
    border-radius: var(--pc-radius);
    box-shadow: var(--pc-shadow);
    padding: 1rem;
    margin: 10px 0;
}

/* Sistema de Pestañas */
.pc-detail-tabs {
    display: flex;
    border-bottom: 2px solid var(--pc-border);
    margin-bottom: 2rem;
}

.pc-detail-tabs .pc-tab-link {
    font-size: 1rem;
    font-weight: 600;
    color: var(--pc-muted);
    text-decoration: none;
    padding: 0.75rem 0;
    margin: 0 1.5rem;
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
    transition: all 0.2s ease;
}
.pc-detail-tabs .pc-tab-link:first-child { margin-left: 0; }
.pc-detail-tabs .pc-tab-link:hover { color: var(--pc-text); }
.pc-detail-tabs .pc-tab-link.active {
    color: var(--pc-blue);
    border-bottom-color: var(--pc-blue);
}

.pc-tab-pane { display: none; }
.pc-tab-pane.active { display: block; }

/* Cuadrícula de Alumnos */
.pc-student-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1rem;
}

.pc-student-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    background-color: var(--pc-bg);
    padding: 0.75rem;
    border-radius: var(--pc-radius-sm);
    border: 1px solid var(--pc-border);
}

.pc-student-card .avatar { width: 48px; height: 48px; border-radius: 50%; }
.pc-student-info { flex-grow: 1; }
.pc-student-name { font-weight: 600; color: var(--pc-text); display: block; }
.pc-student-progress { font-weight: 700; color: var(--pc-blue); }
.pc-student-card .pc-btn { flex-shrink: 0; }
.pc-no-alumnos-message { color: var(--pc-muted); font-style: italic; }

/* Lista de Tareas */
.pc-task-list-detailed {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.pc-task-item-detailed {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    background-color: var(--pc-bg);
    padding: 1rem;
    border-radius: var(--pc-radius-sm);
    border: 1px solid var(--pc-border);
}

.pc-task-item-detailed .pc-task-info { flex-grow: 1; }
.pc-task-title { font-weight: 600; font-size: 1rem; color: var(--pc-text); }
.pc-task-progress { display: flex; align-items: center; gap: 0.75rem; margin-top: 0.5rem; }
.pc-task-progress .pc-progress-bar-enhanced { flex-grow: 1; }
.pc-task-progress-text { font-size: 0.8rem; color: var(--pc-muted); flex-shrink: 0; }
.pc-task-actions { display: flex; gap: 0.5rem; }
.pc-no-tareas-message { color: var(--pc-muted); font-style: italic; }

/* ==========================================================================
   18. NUEVO DISEÑO DE PROGRESO POR TAREA (TUTOR/ADMIN)
   ========================================================================== */

.pc-task-progress-header {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--pc-gap);
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--pc-bg);
    border-radius: var(--pc-radius);
    border: 1px solid var(--pc-border);
}

.pc-task-progress-header .pc-stat-item {
    text-align: center;
}

.pc-task-progress-header .pc-stat-value {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--pc-blue);
}

.pc-task-progress-header .pc-stat-label {
    font-size: 0.9rem;
    color: var(--pc-muted);
}

.pc-student-progress-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.pc-student-progress-item {
    display: grid;
    grid-template-columns: 1fr auto auto;
    align-items: center;
    gap: 1.5rem;
    padding: 1rem;
    background: var(--pc-card);
    border-radius: var(--pc-radius-sm);
    box-shadow: var(--pc-shadow-sm);
    border: 1px solid var(--pc-border);
}

.pc-student-progress-item:hover {
    border-color: #d1d5db;
}

.pc-student-progress-item .pc-student-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.pc-student-info .avatar {
    border-radius: 50%;
}

.pc-student-statuses {
    display: flex;
    gap: 1rem;
}

.pc-status-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    font-weight: 600;
    padding: 0.3rem 0.8rem;
    border-radius: 999px;
}

.pc-status-badge.completed {
    color: var(--pc-green);
    background-color: #e8f5e9;
}

.pc-status-badge.pending {
    color: var(--pc-muted);
    background-color: var(--pc-bg);
}

.pc-student-actions {
    min-width: 150px;
    text-align: right;
}

/* ==========================================================================
   18. DISEÑO DE PROGRESO POR TAREA (PANELES DE ESTADO)
   ========================================================================== */

.pc-task-progress-header {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--pc-gap);
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--pc-bg);
    border-radius: var(--pc-radius);
    border: 1px solid var(--pc-border);
}

.pc-task-progress-header .pc-stat-item { text-align: center; }
.pc-task-progress-header .pc-stat-value { font-size: 1.75rem; font-weight: 800; color: var(--pc-blue); }
.pc-task-progress-header .pc-stat-label { font-size: 0.9rem; color: var(--pc-muted); }

.pc-student-progress-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem; /* Aumentamos el espacio entre alumnos */
}

.pc-student-progress-item {
    display: grid;
    grid-template-columns: 1fr auto; /* Columna para nombre, y otra para los paneles */
    align-items: center;
    gap: 1.5rem;
    padding: 1.25rem;
    background: var(--pc-card);
    border-radius: var(--pc-radius);
    box-shadow: var(--pc-shadow-sm);
    border: 1px solid var(--pc-border);
}

.pc-student-progress-item .pc-student-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.pc-student-info .avatar {
    border-radius: 50%;
}

.pc-student-info .pc-student-name {
    font-weight: 600;
    font-size: 1.1rem;
}

.pc-student-action-tags {
    display: flex;
    gap: 1rem;
}

.pc-action-tag {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border-radius: var(--pc-radius-sm);
    min-width: 220px; /* Ancho mínimo para consistencia */
}

.pc-action-tag-icon {
    font-size: 1.5rem;
}

.pc-action-tag-text {
    flex-grow: 1;
}

.pc-action-tag-title {
    font-weight: 600;
    display: block;
}

.pc-action-tag-status {
    font-size: 0.8rem;
}

/* Estilos por estado */
.pc-action-tag.pending {
    background-color: var(--pc-bg);
    color: var(--pc-muted);
}
.pc-action-tag.pending .pc-action-tag-title {
    color: var(--pc-text);
}

.pc-action-tag.completed {
    background-color: #e8f5e9;
    color: var(--pc-green);
}
.pc-action-tag.completed .pc-action-tag-title {
    color: #14532d;
}

.pc-action-tag .pc-btn {
    flex-shrink: 0;
}

/* ==========================================================================
   19. DISEÑO DE PERFIL (TUTOR/ADMIN) - ESTADÍSTICAS MEJORADAS
   ========================================================================== */

.pc-profile-card-mod {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.pc-profile-card-header {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.pc-profile-card-header .avatar {
    border-radius: 50%;
    width: 58px;
    height: 58px;
    box-shadow: var(--pc-shadow);
    -webkit-border-radius: 50%;
    -moz-border-radius: 50%;
    -ms-border-radius: 50%;
    -o-border-radius: 50%;
}

.pc-profile-info { line-height: 1.3; }
.pc-profile-name { font-size: 1.1rem; font-weight: 600; margin: 0; color: var(--pc-text); }
.pc-profile-role { font-size: 0.85rem; color: var(--pc-muted); }

/* --- ESTILOS MEJORADOS PARA LAS ESTADÍSTICAS --- */
.pc-profile-card-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.pc-profile-card-stats .pc-stat-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.pc-stat-icon {
    font-size: 1.25rem;
    width: 40px;
    height: 40px;
    border-radius: var(--pc-radius-sm);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: #eff6ff; /* Azul claro */
    color: var(--pc-blue);
}

.pc-stat-text {
    line-height: 1.2;
}

.pc-profile-card-stats .stat-value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--pc-text);
}

.pc-profile-card-stats .stat-label {
    font-size: 0.75rem;
    color: var(--pc-muted);
}
/* --- FIN DE LOS ESTILOS MEJORADOS --- */

.pc-profile-card-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
}

/* Acciones para el Admin */
.pc-profile-card-actions .pc-btn {
    width: 100%;
    justify-content: center;
}

/* Footer común */
.pc-profile-card-footer {
    text-align: center;
    padding-top: 0.75rem;
    border-top: 1px solid var(--pc-border);
}

.pc-profile-card-footer .pc-logout-link {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--pc-muted);
    text-decoration: none;
}
.pc-profile-card-footer .pc-logout-link:hover {
    color: var(--pc-red);
}

/* ==========================================================================
   20. ESTILOS PARA CAMBIAR AVATAR (VERSIÓN CORREGIDA)
   ========================================================================== */

/* Contenedor del avatar para posicionar el botón */
.pc-avatar-wrapper {
    position: relative;
    display: inline-block;
    /* Truco para eliminar espacios extra debajo de la imagen */
    line-height: 0; 
}

/* Estilos robustos para el botón de cambiar foto */
.pc-avatar-change-btn {
    /* Posicionamiento */
    position: absolute;
    bottom: 0px; /* Ajuste para que quede en la esquina */
    right: 0px;  /* Ajuste para que quede en la esquina */
    z-index: 5;
    
    /* Apariencia */
    width: 32px;  /* Tamaño unificado */
    height: 32px;
    background-color: #fff;
    color: white;
    border-radius: 50% !important; /* Forzar el círculo */
    border: 1px solid var(--pc-text-primary);
    box-shadow: var(--pc-shadow-sm);

    /* Contenido (icono) */
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    line-height: 1; /* Reseteo para centrar el ícono */
    padding: 0;     /* Reseteo para evitar deformaciones */

    /* Interacción */
    cursor: pointer;
    transition: transform 0.2s ease;
}

.pc-avatar-change-btn:hover {
    transform: scale(1.15);
    background-color: var(--pc-text-primary);
    -webkit-transform: scale(1.15);
    -moz-transform: scale(1.15);
    -ms-transform: scale(1.15);
    -o-transform: scale(1.15);
}

.pc-avatar-change-btn.small {
    width: 24px;
    height: 24px;
    font-size: 12px;
    bottom: -2px; /* Ajuste fino de posición */
    right: -2px;  /* Ajuste fino de posición */
}

/* ==========================================================================
   21. MODAL DE SUBIDA DE AVATAR MEJORADO (DRAG & DROP)
   ========================================================================== */

#pc-avatar-upload-form .pc-form {
    gap: 1rem;
}

.pc-dropzone {
    border: 2px dashed var(--pc-border);
    border-radius: var(--pc-radius);
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease-in-out;
    background-color: var(--pc-bg);
}

.pc-dropzone.dragover {
    border-color: var(--pc-blue);
    background-color: #eff6ff;
}

.pc-dropzone-instructions p {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--pc-text);
    margin: 0.5rem 0;
}

.pc-dropzone-instructions .pc-dropzone-icon {
    font-size: 3rem;
    color: var(--pc-muted);
}

.pc-dropzone-separator {
    color: var(--pc-muted);
    font-size: 0.9rem;
    margin: 0 0.5rem;
}

.pc-dropzone-label {
    color: var(--pc-blue);
    font-weight: 600;
    text-decoration: underline;
    cursor: pointer;
}

/* Ocultamos el input de archivo por defecto */
#pc-avatar-upload-form input[type="file"] {
    display: none;
}

/* Estilos de la vista previa */
.pc-dropzone-preview img {
    max-width: 150px;
    max-height: 150px;
    width: auto;
    height: auto;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid #fff;
    box-shadow: var(--pc-shadow-sm);
}

#pc-avatar-feedback {
    color: var(--pc-red);
    font-size: 0.9rem;
    font-weight: 500;
    min-height: 1.2em; /* Reserva espacio para el mensaje de error */
}

.pc-avatar-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 1rem;
}

/* ==========================================================================
   21. DISEÑO FINAL PARA FORMULARIO DE AJUSTES
   ========================================================================== */

.pc-card-ajustes { background: var(--pc-card-bg); border: 1px solid var(--pc-border-color); border-radius: var(--pc-radius); box-shadow: var(--pc-shadow); padding: 15px; margin: 20px 0;}

.pc-form-stacked {
    display: flex;
    flex-direction: column;
}

.pc-subtitle-small-ajustes {
  font-size: 17px;
  font-weight: 700;
  margin: 0 0 10px;
}

/* Grupo de campo (Etiqueta + Input) */
.pc-field-group {
    display: grid;
    grid-template-columns: 1fr; /* Una columna en móvil */
    gap: 0.5rem 1.5rem;
    padding: 1.5rem 0 0 0;
}
.pc-form-stacked > .pc-field-group:first-of-type {
    padding-top: 0;
}
.pc-form-stacked > .pc-field-group:last-of-type {
    border-bottom: none;
}

@media (min-width: 768px) {
    .pc-field-group {
        grid-template-columns: 1fr 2fr; /* Dos columnas en escritorio */
        align-items: center;
    }
}

/* Columna de la etiqueta y descripción */
.pc-field-label label {
    font-size: 1rem;
    font-weight: 600;
    color: var(--pc-text);
}
.pc-field-description {
    font-size: 0.85rem;
    color: var(--pc-muted);
    margin: 0.25rem 0 0;
}

/* Columna del campo de input */
.pc-field-input input {
    width: 100%;
}
.pc-field-input input:disabled {
    background-color: var(--pc-bg);
    color: var(--pc-muted);
    cursor: not-allowed;
}

/* Contenedor del "ojito" para la contraseña */
.pc-field-input.pc-pass {
    position: relative;
}
.pc-field-input .pc-toggle {
    border: none !important;
    background: transparent !important;
    color: var(--pc-muted);
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    font-size: 1.25rem;
    padding: 0;
}

.pc-field-input .pc-toggle:hover, .pc-field-input .pc-toggle:focus {
    border: none !important;
    background: inherit !important;
    color: inherit !important;
}   

/* Divisor y footer */
.pc-form-divider {
    border: none;
    border-top: 1px solid var(--pc-border);
    margin: 1rem 0 !important;
}

.pc-settings-footer {
    padding-top: 1.5rem;
    display: flex;
    justify-content: flex-end;
}

#pc-student-settings-form .pc-btn.pc-primary.save-ajustes, #pc-staff-settings-form .pc-btn.pc-primary.save-ajustes {
  background: var(--pc-blue);
  color: #fff;
  border: 0;
  border-radius: 999px;
  padding: 10px 22px;
  cursor: pointer;
  transition: .2s ease;
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  display: inline-block;
  text-align: center;
}

#pc-student-settings-form .pc-btn.pc-primary.save-ajustes:hover, #pc-staff-settings-form .pc-btn.pc-primary.save-ajustes:hover {
  background: #2563eb;
  box-shadow: var(--pc-shadow);
}

#pc-student-settings-form .pc-gamification-explainer, form#pc-staff-settings-form .pc-gamification-explainer {
  font-size: 14px !important;
  margin: 0;
  margin-bottom: -10px;
  padding: 12px;
}

/* ==========================================================================
   22. BOTÓN DE AJUSTES EN HEADER (TUTOR/ADMIN)
   ========================================================================== */

.pc-header-action-btn {
    padding: 0;
    width: 40px;
    height: 40px;
    font-size: 1.25rem;
    flex-shrink: 0;
}

/* ==========================================================================
   23. DISEÑO MEJORADO PARA TABLA DE GESTIONAR USUARIOS
   ========================================================================== */

/* Controles de DataTables */
.dataTables_wrapper {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.dataTables_filter {
    text-align: right;
}
.dataTables_filter label {
    font-weight: 600;
    color: var(--pc-text);
}
.dataTables_filter input {
    margin-left: 0.5rem;
    border: 1px solid var(--pc-border);
    border-radius: 999px;
    padding: 0.5rem 1rem;
    transition: all 0.2s ease;
}
.dataTables_filter input:focus {
    outline: none;
    border-color: var(--pc-blue);
    box-shadow: var(--pc-ring);
}
.dataTables_paginate .paginate_button {
    padding: 0.5rem 1rem;
    margin: 0 0.25rem;
    border-radius: 999px;
    border: 1px solid var(--pc-border);
    cursor: pointer;
    background: var(--pc-card);
}
.dataTables_paginate .paginate_button:hover {
    background: var(--pc-bg);
}
.dataTables_paginate .paginate_button.current {
    background: var(--pc-blue);
    color: #fff;
    border-color: var(--pc-blue);
}

/* Estilos de la tabla personalizada */
.pc-users-table {
    border-collapse: collapse;
    width: 100%;
}
.pc-users-table td, .pc-users-table th {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--pc-border);
    text-align: left;
    vertical-align: middle;
}
.pc-users-table thead th {
    font-weight: 600;
    color: var(--pc-muted);
    background-color: var(--pc-bg);
}

/* Celda de información del usuario */
.pc-user-info-cell {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}
.pc-user-info-cell .avatar {
    border-radius: 50%;
    width: 32px;
    height: 32px;
}
.pc-user-name {
    display: block;
    font-weight: 600;
    color: var(--pc-text);
}
.pc-user-email {
    display: block;
    font-size: 0.85rem;
    color: var(--pc-muted);
}

div#pc-users-datatable_length label {
    display: flex;
    align-items: center;
    gap: 5px;
    margin-bottom: -23px;
    max-width: 30%;
}

/* ==========================================================================
   24. DISEÑO FINAL DE BIBLIOTECA (CON IMÁGENES ALINEADAS)
   ========================================================================== */

.pc-biblioteca-container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1.5rem;
}

.pc-biblioteca-header {
    text-align: center;
    margin-bottom: 3rem;
}
.pc-biblioteca-header .pc-title { font-size: 2.5rem; font-weight: 800; }
.pc-biblioteca-header .pc-subtitle { font-size: 1.1rem; color: var(--pc-text-secondary); max-width: 600px; margin: 0.5rem auto 0; }

.pc-biblioteca-search {
    margin-top: 2rem;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}
#pc-book-search-input {
    width: 100%;
    padding: 0.8rem 1.25rem;
    font-size: 1rem;
    border-radius: 999px;
    border: 1px solid var(--pc-border-color);
    transition: all 0.2s ease;
}
#pc-book-search-input:focus {
    outline: none;
    border-color: var(--pc-blue);
    box-shadow: 0 0 0 4px rgba(18, 115, 235, 0.1);
}

.pc-book-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
}
@media (min-width: 1280px) {
    .pc-book-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.pc-book-card {
    background-color: var(--pc-card-bg);
    border-radius: var(--pc-radius);
    box-shadow: var(--pc-shadow-sm);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: all 0.2s ease-in-out;
}
.pc-book-card:hover { transform: translateY(-8px); box-shadow: var(--pc-shadow-md); }

/* --- AJUSTES CLAVE PARA LAS IMÁGENES --- */
.pc-book-card-cover {
    height: 320px; /* Altura fija para el contenedor de la imagen */
    padding: 1rem; /* Un pequeño margen interior */
    background-color: var(--pc-bg); /* Fondo sutil para las barras negras */
    display: flex;
    align-items: center;
    justify-content: center;
}

.pc-book-card-cover img {
    width: 100%;
    height: 100%;
    object-fit: contain; /* La imagen se escala para caber completa, sin recortar */
    box-shadow: var(--pc-shadow-sm);
}
/* --- FIN DE LOS AJUSTES --- */

.pc-book-card-content {
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}
.pc-book-title { font-size: 1.2rem; font-weight: 700; margin: 0 0 0.25rem; color: var(--pc-text-primary); line-height: 1.3; }
.pc-book-author { font-size: 0.85rem; color: var(--pc-text-secondary); margin-bottom: 0.75rem; }
.pc-book-card .pc-stars { color: var(--pc-yellow); font-size: 1rem; }
.pc-book-summary { font-size: 0.9rem; color: var(--pc-text-secondary); margin-top: 0.5rem; flex-grow: 1; }

.pc-book-card-footer {
    padding: 0 1.25rem 1.25rem;
    margin-top: 1rem;
}
.pc-book-card-footer .pc-btn {
    width: 100%;
}
/* ==========================================================================
   25. ESTILOS PARA MODAL DE DETALLE DE LIBRO
   ========================================================================== */

.pc-book-modal-content {
    display: grid;
    grid-template-columns: 1fr; /* Una columna en móvil */
    gap: 1.5rem;
}

@media (min-width: 768px) {
    .pc-book-modal-content {
        /* 1/3 para la portada, 2/3 para los detalles en escritorio */
        grid-template-columns: 1fr 2fr; 
    }
}

.pc-book-modal-cover img {
    width: 100%;
    height: auto;
    border-radius: var(--pc-radius-sm);
    box-shadow: var(--pc-shadow);
}

.pc-book-modal-details {
    display: flex;
    flex-direction: column;
}

.pc-book-modal-details .pc-book-title {
    font-size: 1.75rem;
    line-height: 1.2;
}

.pc-book-summary-full h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--pc-text-secondary);
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
    border-bottom: 1px solid var(--pc-border-color);
    padding-bottom: 0.5rem;
}

.pc-book-summary-full p {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--pc-text-secondary);
    margin: 0;
}

a.pc-btn.pc-primary.pc-wsp:hover {
    color: #fff;
}

.pc-login-prompt {
    text-align: center;
    padding: 3rem 2rem;
    background-color: var(--pc-bg);
    border: 1px solid var(--pc-border-color);
    border-radius: var(--pc-radius-lg);
}
.pc-login-prompt h3 {
    font-size: 1.5rem;
    color: var(--pc-text-primary);
    margin-top: 0;
}
.pc-login-prompt p {
    color: var(--pc-text-secondary);
    max-width: 450px;
    margin: 1rem auto 1.5rem;
}
.pc-login-prompt a:hover {
    color: #fff;
}

/* ==========================================================================
   26. ETIQUETA DE EDAD EN TARJETA DE LIBRO
   ========================================================================== */

.pc-book-card-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    margin-bottom: 0.3rem;
    flex-direction: column;
    align-content: flex-start;
}

.pc-book-author {
    font-size: 0.85rem;
    color: var(--pc-text-secondary);
    margin-bottom: 5px;
}

.pc-book-age-tag {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
    background-color: #eef2ff; /* Morado claro */
    color: #4338ca; /* Morado oscuro */
    border: 1px solid #c7d2fe;
}

.pc-profile-age {
    display: block;
    margin-top: -8px; /* Lo sube un poco para que quede más cerca del nombre */
    margin-bottom: 12px;
    font-size: 0.9em;
    color: #6c757d; /* Un color gris suave */
    text-align: center;
    background-color: #eef2ff;
    order: 1px solid #c7d2fe;
    padding: 0.2rem 0.6rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: #4338ca;
    border-radius: 999px;
}