/**
 * RESPONSIVE_GLOBAL.CSS - Estilos Responsive Globales para EduFacil
 * Archivo CSS para hacer todas las páginas responsive y optimizar el espacio
 * 
 * Características:
 * - Diseño responsive para todas las pantallas
 * - Optimización del espacio disponible
 * - Mejoras en la experiencia de usuario
 * - Compatibilidad con dispositivos móviles
 */

/* ========================================
   VARIABLES CSS GLOBALES
   ======================================== */
:root {
    --primary-color: #007bff;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-xxl: 1.5rem;
    
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;
    
    --border-radius: 0.375rem;
    --border-radius-lg: 0.5rem;
    --border-radius-xl: 0.75rem;
    
    --box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --box-shadow-lg: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    
    --transition: all 0.15s ease-in-out;
}

/* ========================================
   RESET Y BASE GLOBAL
   ======================================== */
* {
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-size: var(--font-size-base);
    line-height: 1.5;
    color: var(--dark-color);
    background-color: #f8f9fa;
    margin: 0;
    padding: 0;
}

/* ========================================
   CONTENEDORES RESPONSIVE
   ======================================== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.container-fluid {
    width: 100%;
    padding: 0 var(--spacing-md);
}

.container-sm {
    max-width: 576px;
}

.container-md {
    max-width: 768px;
}

.container-lg {
    max-width: 992px;
}

.container-xl {
    max-width: 1200px;
}

/* ========================================
   SISTEMA DE GRID RESPONSIVE
   ======================================== */
.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 calc(var(--spacing-sm) * -1);
}

.col {
    flex: 1 0 0%;
    padding: 0 var(--spacing-sm);
}

.col-auto {
    flex: 0 0 auto;
    width: auto;
    padding: 0 var(--spacing-sm);
}

/* Columnas específicas */
.col-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
.col-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
.col-3 { flex: 0 0 25%; max-width: 25%; }
.col-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
.col-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
.col-6 { flex: 0 0 50%; max-width: 50%; }
.col-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
.col-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
.col-9 { flex: 0 0 75%; max-width: 75%; }
.col-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
.col-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
.col-12 { flex: 0 0 100%; max-width: 100%; }

/* ========================================
   TABLAS RESPONSIVE
   ======================================== */
.table-responsive {
    display: block;
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.table {
    width: 100%;
    margin-bottom: var(--spacing-md);
    background-color: transparent;
    border-collapse: collapse;
}

.table th,
.table td {
    padding: var(--spacing-sm) var(--spacing-md);
    vertical-align: top;
    border-top: 1px solid #dee2e6;
    text-align: left;
}

.table thead th {
    vertical-align: bottom;
    border-bottom: 2px solid #dee2e6;
    background-color: var(--light-color);
    font-weight: 600;
}

.table tbody tr:hover {
    background-color: rgba(0, 0, 0, 0.075);
}

/* Tabla compacta */
.table-sm th,
.table-sm td {
    padding: var(--spacing-xs) var(--spacing-sm);
}

/* Tabla striped */
.table-striped tbody tr:nth-of-type(odd) {
    background-color: rgba(0, 0, 0, 0.05);
}

/* ========================================
   FORMULARIOS RESPONSIVE
   ======================================== */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: inline-block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
}

.form-control {
    display: block;
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-base);
    line-height: 1.5;
    color: var(--dark-color);
    background-color: #fff;
    background-clip: padding-box;
    border: 1px solid #ced4da;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.form-control:focus {
    color: var(--dark-color);
    background-color: #fff;
    border-color: #80bdff;
    outline: 0;
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

.form-control-sm {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-sm);
    border-radius: var(--border-radius);
}

.form-control-lg {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-lg);
    border-radius: var(--border-radius-lg);
}

/* ========================================
   BOTONES RESPONSIVE
   ======================================== */
.btn {
    display: inline-block;
    font-weight: 400;
    text-align: center;
    vertical-align: middle;
    cursor: pointer;
    user-select: none;
    background-color: transparent;
    border: 1px solid transparent;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-base);
    line-height: 1.5;
    border-radius: var(--border-radius);
    transition: var(--transition);
    text-decoration: none;
}

.btn:hover {
    text-decoration: none;
}

.btn:focus {
    outline: 0;
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

.btn:disabled {
    opacity: 0.65;
    cursor: not-allowed;
}

/* Tamaños de botones */
.btn-sm {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-sm);
    border-radius: var(--border-radius);
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-lg);
    border-radius: var(--border-radius-lg);
}

/* Colores de botones */
.btn-primary {
    color: #fff;
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-primary:hover {
    color: #fff;
    background-color: #0056b3;
    border-color: #004085;
}

.btn-secondary {
    color: #fff;
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
}

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

.btn-danger {
    color: #fff;
    background-color: var(--danger-color);
    border-color: var(--danger-color);
}

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

.btn-info {
    color: #fff;
    background-color: var(--info-color);
    border-color: var(--info-color);
}

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

.btn-dark {
    color: #fff;
    background-color: var(--dark-color);
    border-color: var(--dark-color);
}

/* ========================================
   NAVEGACIÓN RESPONSIVE
   ======================================== */
.navbar {
    position: relative;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: #fff;
    border-bottom: 1px solid #dee2e6;
}

.navbar-brand {
    display: inline-block;
    padding-top: var(--spacing-xs);
    padding-bottom: var(--spacing-xs);
    margin-right: var(--spacing-md);
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--dark-color);
    text-decoration: none;
}

.navbar-nav {
    display: flex;
    flex-direction: column;
    padding-left: 0;
    margin-bottom: 0;
    list-style: none;
}

.navbar-nav .nav-link {
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--dark-color);
    text-decoration: none;
    transition: var(--transition);
}

.navbar-nav .nav-link:hover {
    color: var(--primary-color);
}

/* ========================================
   CARDS RESPONSIVE
   ======================================== */
.card {
    position: relative;
    display: flex;
    flex-direction: column;
    min-width: 0;
    word-wrap: break-word;
    background-color: #fff;
    background-clip: border-box;
    border: 1px solid rgba(0, 0, 0, 0.125);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.card-header {
    padding: var(--spacing-md);
    margin-bottom: 0;
    background-color: rgba(0, 0, 0, 0.03);
    border-bottom: 1px solid rgba(0, 0, 0, 0.125);
    border-top-left-radius: calc(var(--border-radius) - 1px);
    border-top-right-radius: calc(var(--border-radius) - 1px);
}

.card-body {
    flex: 1 1 auto;
    padding: var(--spacing-md);
}

.card-footer {
    padding: var(--spacing-md);
    background-color: rgba(0, 0, 0, 0.03);
    border-top: 1px solid rgba(0, 0, 0, 0.125);
    border-bottom-left-radius: calc(var(--border-radius) - 1px);
    border-bottom-right-radius: calc(var(--border-radius) - 1px);
}

/* ========================================
   UTILIDADES RESPONSIVE
   ======================================== */
.d-none { display: none !important; }
.d-inline { display: inline !important; }
.d-inline-block { display: inline-block !important; }
.d-block { display: block !important; }
.d-flex { display: flex !important; }
.d-inline-flex { display: inline-flex !important; }

/* Flexbox utilities */
.flex-row { flex-direction: row !important; }
.flex-column { flex-direction: column !important; }
.flex-wrap { flex-wrap: wrap !important; }
.flex-nowrap { flex-wrap: nowrap !important; }

.justify-content-start { justify-content: flex-start !important; }
.justify-content-end { justify-content: flex-end !important; }
.justify-content-center { justify-content: center !important; }
.justify-content-between { justify-content: space-between !important; }
.justify-content-around { justify-content: space-around !important; }

.align-items-start { align-items: flex-start !important; }
.align-items-end { align-items: flex-end !important; }
.align-items-center { align-items: center !important; }
.align-items-baseline { align-items: baseline !important; }
.align-items-stretch { align-items: stretch !important; }

/* Spacing utilities */
.m-0 { margin: 0 !important; }
.m-1 { margin: var(--spacing-xs) !important; }
.m-2 { margin: var(--spacing-sm) !important; }
.m-3 { margin: var(--spacing-md) !important; }
.m-4 { margin: var(--spacing-lg) !important; }
.m-5 { margin: var(--spacing-xl) !important; }

.p-0 { padding: 0 !important; }
.p-1 { padding: var(--spacing-xs) !important; }
.p-2 { padding: var(--spacing-sm) !important; }
.p-3 { padding: var(--spacing-md) !important; }
.p-4 { padding: var(--spacing-lg) !important; }
.p-5 { padding: var(--spacing-xl) !important; }

/* Text utilities */
.text-left { text-align: left !important; }
.text-right { text-align: right !important; }
.text-center { text-align: center !important; }
.text-justify { text-align: justify !important; }

.text-primary { color: var(--primary-color) !important; }
.text-secondary { color: var(--secondary-color) !important; }
.text-success { color: var(--success-color) !important; }
.text-danger { color: var(--danger-color) !important; }
.text-warning { color: var(--warning-color) !important; }
.text-info { color: var(--info-color) !important; }
.text-light { color: var(--light-color) !important; }
.text-dark { color: var(--dark-color) !important; }

/* ========================================
   MEDIA QUERIES RESPONSIVE
   ======================================== */

/* Extra small devices (portrait phones, less than 576px) */
@media (max-width: 575.98px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .col-xs-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
    .col-xs-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
    .col-xs-3 { flex: 0 0 25%; max-width: 25%; }
    .col-xs-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
    .col-xs-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
    .col-xs-6 { flex: 0 0 50%; max-width: 50%; }
    .col-xs-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
    .col-xs-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
    .col-xs-9 { flex: 0 0 75%; max-width: 75%; }
    .col-xs-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
    .col-xs-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
    .col-xs-12 { flex: 0 0 100%; max-width: 100%; }
    
    .d-xs-none { display: none !important; }
    .d-xs-block { display: block !important; }
    .d-xs-flex { display: flex !important; }
    
    .table-responsive {
        font-size: var(--font-size-sm);
    }
    
    .btn {
        width: 100%;
        margin-bottom: var(--spacing-xs);
    }
    
    .navbar {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .navbar-nav {
        flex-direction: row;
        flex-wrap: wrap;
    }
}

/* Small devices (landscape phones, 576px and up) */
@media (min-width: 576px) and (max-width: 767.98px) {
    .col-sm-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
    .col-sm-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
    .col-sm-3 { flex: 0 0 25%; max-width: 25%; }
    .col-sm-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
    .col-sm-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
    .col-sm-6 { flex: 0 0 50%; max-width: 50%; }
    .col-sm-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
    .col-sm-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
    .col-sm-9 { flex: 0 0 75%; max-width: 75%; }
    .col-sm-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
    .col-sm-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
    .col-sm-12 { flex: 0 0 100%; max-width: 100%; }
    
    .d-sm-none { display: none !important; }
    .d-sm-block { display: block !important; }
    .d-sm-flex { display: flex !important; }
}

/* Medium devices (tablets, 768px and up) */
@media (min-width: 768px) and (max-width: 991.98px) {
    .col-md-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
    .col-md-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
    .col-md-3 { flex: 0 0 25%; max-width: 25%; }
    .col-md-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
    .col-md-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
    .col-md-6 { flex: 0 0 50%; max-width: 50%; }
    .col-md-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
    .col-md-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
    .col-md-9 { flex: 0 0 75%; max-width: 75%; }
    .col-md-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
    .col-md-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
    .col-md-12 { flex: 0 0 100%; max-width: 100%; }
    
    .d-md-none { display: none !important; }
    .d-md-block { display: block !important; }
    .d-md-flex { display: flex !important; }
}

/* Large devices (desktops, 992px and up) */
@media (min-width: 992px) and (max-width: 1199.98px) {
    .col-lg-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
    .col-lg-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
    .col-lg-3 { flex: 0 0 25%; max-width: 25%; }
    .col-lg-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
    .col-lg-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
    .col-lg-6 { flex: 0 0 50%; max-width: 50%; }
    .col-lg-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
    .col-lg-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
    .col-lg-9 { flex: 0 0 75%; max-width: 75%; }
    .col-lg-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
    .col-lg-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
    .col-lg-12 { flex: 0 0 100%; max-width: 100%; }
    
    .d-lg-none { display: none !important; }
    .d-lg-block { display: block !important; }
    .d-lg-flex { display: flex !important; }
}

/* Extra large devices (large desktops, 1200px and up) */
@media (min-width: 1200px) {
    .col-xl-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
    .col-xl-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
    .col-xl-3 { flex: 0 0 25%; max-width: 25%; }
    .col-xl-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
    .col-xl-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
    .col-xl-6 { flex: 0 0 50%; max-width: 50%; }
    .col-xl-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
    .col-xl-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
    .col-xl-9 { flex: 0 0 75%; max-width: 75%; }
    .col-xl-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
    .col-xl-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
    .col-xl-12 { flex: 0 0 100%; max-width: 100%; }
    
    .d-xl-none { display: none !important; }
    .d-xl-block { display: block !important; }
    .d-xl-flex { display: flex !important; }
}

/* ========================================
   OPTIMIZACIONES ESPECÍFICAS PARA EDUFACIL
   ======================================== */

/* Optimización para tablas de valoración */
.table-valoracion {
    font-size: var(--font-size-sm);
}

.table-valoracion th,
.table-valoracion td {
    padding: var(--spacing-xs) var(--spacing-sm);
    white-space: nowrap;
}

.table-valoracion .input-nota {
    width: 60px;
    text-align: center;
}

/* Optimización para formularios de asistencia */
.form-asistencia .form-group {
    margin-bottom: var(--spacing-sm);
}

.form-asistencia .form-control {
    font-size: var(--font-size-sm);
}

/* Optimización para dashboards */
.dashboard-card {
    margin-bottom: var(--spacing-md);
}

.dashboard-stat {
    text-align: center;
    padding: var(--spacing-md);
    background: #fff;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.dashboard-stat .stat-number {
    font-size: var(--font-size-xxl);
    font-weight: 600;
    color: var(--primary-color);
}

.dashboard-stat .stat-label {
    font-size: var(--font-size-sm);
    color: var(--secondary-color);
    margin-top: var(--spacing-xs);
}

/* Optimización para modales */
.modal-content {
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow-lg);
}

.modal-header {
    border-bottom: 1px solid #dee2e6;
    padding: var(--spacing-md) var(--spacing-lg);
}

.modal-body {
    padding: var(--spacing-lg);
}

.modal-footer {
    border-top: 1px solid #dee2e6;
    padding: var(--spacing-md) var(--spacing-lg);
}

/* ========================================
   MEJORAS DE ACCESIBILIDAD
   ======================================== */

/* Focus visible para mejor accesibilidad */
*:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Mejoras para lectores de pantalla */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ========================================
   OPTIMIZACIONES DE RENDIMIENTO
   ======================================== */

/* Optimización para animaciones */
* {
    will-change: auto;
}

/* Optimización para scroll suave */
html {
    scroll-behavior: smooth;
}

/* Optimización para imágenes */
img {
    max-width: 100%;
    height: auto;
}

/* ========================================
   ESTILOS PARA IMPRESIÓN
   ======================================== */
@media print {
    .no-print {
        display: none !important;
    }
    
    .container {
        max-width: none;
        padding: 0;
    }
    
    .table {
        font-size: var(--font-size-xs);
    }
    
    .btn {
        display: none !important;
    }
}