/* ===== PROFENINJA - CSS OPTIMIZADO ===== */

/* Variables CSS para evitar repetición */
:root {
    /* Colores base */
    --primary-blue: #3b82f6;
    --primary-green: #10b981;
    --primary-red: #ef4444;
    --primary-purple: #8b5cf6;
    --primary-pink: #ec4899;
    
    /* Backgrounds */
    --glass-bg: rgba(255, 255, 255, 0.15);
    --glass-border: rgba(255, 255, 255, 0.2);
    --dark-bg: #1a1a2e;
    --light-bg: #f8fafc;
    --rosa-bg: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    
    /* Efectos */
    --blur-effect: blur(20px);
    --shadow-glass: 0 8px 32px rgba(0, 0, 0, 0.08);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    color: white;
    overflow-x: hidden;
    transition: var(--transition);
}

/* Temas */
body.theme-dark {
    background: linear-gradient(135deg, #0f0f23 0%, #1a1a2e 50%, #16213e 100%);
}

    body.theme-light {
    background: linear-gradient(135deg, #e0f2fe 0%, #f3e5f5 50%, #fff3e0 100%);
    color: #1a202c;
}

body.theme-rosa {
    background: var(--rosa-bg);
}

body.theme-neon {
    background: linear-gradient(135deg, #0a0a0a 0%, #1a0a2e 50%, #2a1a4e 100%);
}

/* Menú Lateral */
.side-menu {
    position: fixed;
    left: 0;
    top: 0;
    width: 280px;
    height: 100vh;
    background: var(--glass-bg);
    backdrop-filter: var(--blur-effect);
    border-right: 1px solid var(--glass-border);
    padding: 2rem 0;
    transition: var(--transition);
    z-index: 1000;
}

.side-menu.collapsed {
    width: 80px;
}

.side-menu ul {
  list-style: none;
}

.side-menu a {
  display: flex;
  align-items: center;
    padding: 1rem 1.5rem;
    color: inherit;
  text-decoration: none;
    transition: var(--transition);
    border-radius: 0 25px 25px 0;
    margin-right: 1rem;
}

.side-menu a:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateX(5px);
}

.side-menu a.active {
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-purple));
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.side-menu .icon {
    width: 24px;
    height: 24px;
    margin-right: 1rem;
    display: flex;
    align-items: center;
  justify-content: center;
}

.side-menu .menu-label {
  font-weight: 500;
    transition: var(--transition);
}

.side-menu.collapsed .menu-label {
  opacity: 0;
  visibility: hidden;
}

/* Botón de colapso */
#collapse-menu-btn {
    position: absolute;
    top: 1rem;
    right: -15px;
    width: 30px;
    height: 30px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
  border-radius: 50%;
  display: flex;
    align-items: center;
  justify-content: center;
  cursor: pointer;
    transition: var(--transition);
}

#collapse-menu-btn:hover {
    background: rgba(255, 255, 255, 0.2);
  transform: scale(1.1);
}

/* Título del menú */
.menu-title {
    font-size: 1.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 2rem;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Panel de Configuración */
.config-panel {
    margin-left: 280px;
  min-height: 100vh;
  padding: 2rem;
    transition: var(--transition);
}

.side-menu.collapsed + .config-panel {
    margin-left: 80px;
}

.config-panel .container {
  max-width: 1200px;
  margin: 0 auto;
}

.config-panel h2 {
    font-size: 2.5rem;
    font-weight: 700;
  text-align: center;
    margin-bottom: 3rem;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Contenedor de secciones */
.config-sections-container {
    display: flex;
    gap: 2rem;
    align-items: flex-start;
    justify-content: center;
    max-width: 1000px;
    margin: 0 auto;
    width: 100%;
}

/* Secciones */
.config-section {
    background: var(--glass-bg);
    border-radius: 20px;
    padding: 2rem;
    box-shadow: var(--shadow-glass);
    border: 1px solid var(--glass-border);
    backdrop-filter: var(--blur-effect);
    flex: 0 1 400px;
    max-width: 450px;
    min-width: 280px;
    transition: var(--transition);
}

.config-section:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
}

.config-section h3 {
  font-size: 1.5rem;
    font-weight: 600;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Panel de Instrucciones */
.instructions-panel {
    background: linear-gradient(135deg, 
        rgba(59, 130, 246, 0.1), 
        rgba(139, 92, 246, 0.1));
    border: 1px solid rgba(59, 130, 246, 0.2);
}

.instructions-content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.welcome-message h4 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--primary-blue);
}

.welcome-message p {
    opacity: 0.8;
  font-size: 0.95rem;
}

.instruction-steps {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.instruction-step {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    transition: var(--transition);
}

.instruction-step:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateX(5px);
}

.step-number {
    width: 28px;
    height: 28px;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-purple));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.85rem;
    color: white;
    flex-shrink: 0;
}

.step-content h5 {
    font-weight: 600;
    margin-bottom: 0.25rem;
        font-size: 0.95rem;
}

.step-content p {
    font-size: 0.85rem;
    opacity: 0.8;
    line-height: 1.5;
}

.ninja-tip {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(5, 150, 105, 0.1));
    border: 1px solid rgba(16, 185, 129, 0.2);
  border-radius: 12px;
    padding: 1rem;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.tip-icon {
    font-size: 1.25rem;
    flex-shrink: 0;
}

.tip-content {
    font-size: 0.9rem;
    line-height: 1.5;
}

.tip-content strong {
    color: var(--primary-green);
    font-weight: 600;
}

/* Controles de configuración */
.config-controls {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

.config-controls button {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-purple));
    border: none;
    border-radius: 12px;
    color: white;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.config-controls button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: var(--transition);
}

.config-controls button:hover::before {
    left: 100%;
}

.config-controls button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.3);
}

.config-controls button svg {
    width: 20px;
    height: 20px;
}

/* Lista de cursos */
.cursos-list h4 {
    font-weight: 600;
    margin-bottom: 1rem;
    opacity: 0.9;
}

.lista-cursos {
    max-height: 300px;
    overflow-y: auto;
    border-radius: 8px;
    background: rgba(0, 0, 0, 0.1);
    padding: 0.5rem;
}

.curso-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    margin-bottom: 0.5rem;
    transition: var(--transition);
}

.curso-item:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateX(5px);
}

.curso-item span {
    font-weight: 500;
}

.btn-eliminar {
    background: rgba(239, 68, 68, 0.2);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: var(--primary-red);
    padding: 0.5rem;
    border-radius: 6px;
    cursor: pointer;
    transition: var(--transition);
}

.btn-eliminar:hover {
    background: rgba(239, 68, 68, 0.3);
    transform: scale(1.1);
}

/* Panel de estudiantes */
.estudiantes-panel {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--glass-bg);
    backdrop-filter: var(--blur-effect);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 1.5rem;
    margin-top: 1rem;
    max-height: 300px;
    overflow-y: auto;
    z-index: 10;
}

.estudiantes-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.estudiantes-count {
    font-size: 0.9rem;
    opacity: 0.8;
}

.btn-cerrar {
    background: none;
    border: none;
    color: inherit;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.25rem;
    border-radius: 4px;
    transition: var(--transition);
}

.btn-cerrar:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: scale(1.1);
}

.estudiante-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    margin-bottom: 0.5rem;
    transition: var(--transition);
}

.estudiante-item:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateX(3px);
}

.estudiante-numero {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-purple));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.85rem;
    color: white;
}

.estudiante-nombre {
    flex: 1;
    font-weight: 500;
}

/* Scrollbars personalizados */
.lista-cursos::-webkit-scrollbar,
.lista-estudiantes::-webkit-scrollbar,
.estudiantes-panel::-webkit-scrollbar {
    width: 6px;
}

.lista-cursos::-webkit-scrollbar-track,
.lista-estudiantes::-webkit-scrollbar-track,
.estudiantes-panel::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 3px;
}

.lista-cursos::-webkit-scrollbar-thumb,
.lista-estudiantes::-webkit-scrollbar-thumb,
.estudiantes-panel::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 3px;
}

.lista-cursos::-webkit-scrollbar-thumb:hover,
.lista-estudiantes::-webkit-scrollbar-thumb:hover,
.estudiantes-panel::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* Animaciones */
@keyframes slideInPanel {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInMenu {
    from {
        transform: translateX(-100%);
    }
    to {
        transform: translateX(0);
    }
}

.config-panel.visible {
    animation: slideInPanel 0.5s ease-out;
}

.side-menu {
    animation: slideInMenu 0.3s ease-out;
}

/* Responsive Design */

/* Tablets grandes (1200px - 1024px) */
@media (max-width: 1200px) {
    .config-sections-container {
        gap: 1.5rem;
        max-width: 900px;
        justify-content: center;
    }
    
    .config-section {
        flex: 0 1 380px;
        max-width: 420px;
        min-width: 260px;
    }
    
    .config-section h3 {
        font-size: 1.3rem;
    }
    
    .instruction-step {
        padding: 0.9rem;
    }
}

/* Tablets (1024px - 768px) */
@media (max-width: 1024px) {
    .config-sections-container {
        flex-direction: column;
        gap: 1.5rem;
        max-width: 600px;
        align-items: center;
        justify-content: center;
    }
    
    .config-section {
        flex: 1 1 auto;
        max-width: 100%;
        min-width: auto;
    }
    
    .config-panel {
        padding: 1.5rem;
    }
    
    .config-panel h2 {
        font-size: 2.2rem;
        margin-bottom: 1.5rem;
    }
    
    .config-controls {
        flex-direction: row;
        gap: 1rem;
    }
    
    .config-controls button {
        flex: 1;
        min-width: 0;
        padding: 0.9rem 1.2rem;
    }
    
         .lista-cursos {
         max-height: 250px;
     }
}

/* Tablets pequeñas y móviles grandes (768px - 480px) */
@media (max-width: 768px) {
    .side-menu {
        width: 100%;
        transform: translateX(-100%);
        z-index: 2000;
    }
    
    .side-menu.show {
        transform: translateX(0);
    }
    
    .config-panel {
        margin-left: 0;
        padding: 1rem;
    }
    
    .side-menu.collapsed + .config-panel {
        margin-left: 0;
    }
    
    .config-panel h2 {
        font-size: 1.8rem;
        margin-bottom: 1.5rem;
        text-align: center;
    }
    
    .config-section {
        padding: 1.2rem;
        margin-bottom: 1rem;
    }
    
    .config-section h3 {
        font-size: 1.2rem;
        margin-bottom: 1rem;
        text-align: center;
    }
    
    .config-controls {
        flex-direction: column;
        gap: 0.8rem;
    }
    
    .config-controls button {
        padding: 0.8rem 1rem;
        font-size: 0.9rem;
    }
    
    .instruction-step {
        padding: 0.75rem;
        gap: 0.75rem;
        flex-direction: column;
        text-align: center;
    }
    
    .step-number {
        width: 28px;
        height: 28px;
        font-size: 0.8rem;
        align-self: center;
    }
    
    .step-content h5 {
        font-size: 0.95rem;
        margin-bottom: 0.5rem;
    }
    
    .step-content p {
        font-size: 0.85rem;
        line-height: 1.4;
    }
    
    .ninja-tip {
        padding: 0.8rem;
        gap: 0.6rem;
        flex-direction: column;
        text-align: center;
    }
    
    .tip-content {
        font-size: 0.85rem;
    }
    
         .lista-cursos {
         max-height: 200px;
     }
}

/* Móviles (480px - 320px) */
@media (max-width: 480px) {
    .config-panel {
        padding: 0.8rem;
    }
    
    .config-panel h2 {
        font-size: 1.6rem;
        margin-bottom: 1rem;
    }
    
    .config-section {
        padding: 1rem;
        border-radius: 16px;
    }
    
    .config-section h3 {
        font-size: 1.1rem;
        margin-bottom: 0.8rem;
    }
    
    .config-controls button {
        padding: 0.7rem 0.8rem;
        font-size: 0.85rem;
        border-radius: 10px;
    }
    
    .instruction-step {
        padding: 0.6rem;
        border-radius: 10px;
    }
    
    .step-number {
        width: 24px;
        height: 24px;
        font-size: 0.75rem;
    }
    
    .step-content h5 {
        font-size: 0.9rem;
    }
    
    .step-content p {
        font-size: 0.8rem;
    }
    
    .ninja-tip {
        padding: 0.7rem;
        border-radius: 10px;
    }
    
    .tip-content {
        font-size: 0.8rem;
    }
    
         .lista-cursos {
         max-height: 180px;
         padding: 0.4rem;
     }
     
     .curso-item {
         padding: 0.6rem;
         border-radius: 6px;
     }
}

/* Móviles muy pequeños (320px y menos) */
@media (max-width: 320px) {
    .config-panel {
        padding: 0.6rem;
    }
    
    .config-panel h2 {
        font-size: 1.4rem;
        margin-bottom: 0.8rem;
    }
    
    .config-section {
        padding: 0.8rem;
        border-radius: 12px;
    }
    
    .config-section h3 {
        font-size: 1rem;
        margin-bottom: 0.6rem;
    }
    
    .config-controls button {
        padding: 0.6rem;
        font-size: 0.8rem;
    }
    
    .instruction-step {
        padding: 0.5rem;
    }
    
    .step-content h5 {
        font-size: 0.85rem;
    }
    
    .step-content p {
        font-size: 0.75rem;
    }
    
         .lista-cursos {
         max-height: 150px;
     }
     
     .curso-item {
         padding: 0.5rem;
     }
}

/* Ajustes específicos por tema */
body.theme-light .config-section {
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(0, 0, 0, 0.1);
}

body.theme-light .side-menu {
    background: rgba(255, 255, 255, 0.9);
    border-right: 1px solid rgba(0, 0, 0, 0.1);
}

body.theme-neon .config-section {
    border: 1px solid rgba(59, 130, 246, 0.3);
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.1);
}

body.theme-neon .side-menu {
    border-right: 1px solid rgba(59, 130, 246, 0.3);
}

/* Estados de carga y vacío */
.lista-cursos:empty::after {
    content: "No hay cursos cargados";
    display: block;
    text-align: center;
    padding: 2rem;
    opacity: 0.6;
    font-style: italic;
}



/* Efectos de hover mejorados */
.config-section:hover {
    border-color: rgba(59, 130, 246, 0.3);
}

.instructions-panel:hover {
    border-color: rgba(59, 130, 246, 0.4);
    box-shadow: 0 12px 40px rgba(59, 130, 246, 0.1);
}

/* Optimización de rendimiento */
* {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.config-section,
.side-menu,
.instruction-step,
.curso-item,
.estudiante-item {
    will-change: transform;
}

/* Optimizaciones para dispositivos táctiles */
@media (hover: none) and (pointer: coarse) {
    .config-controls button,
    .btn-eliminar {
        min-height: 44px;
        min-width: 44px;
        padding: 0.8rem 1rem;
    }
    
    .curso-item,
    .instruction-step {
        padding: 1rem;
        margin-bottom: 0.8rem;
    }
    
    .step-number {
        width: 32px;
        height: 32px;
        font-size: 0.9rem;
    }
}

/* Mejoras de accesibilidad */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Modo de alto contraste */
@media (prefers-contrast: high) {
    .config-section {
        border-width: 2px;
        border-color: currentColor;
    }
    
    .config-controls button {
        border-width: 2px;
        font-weight: 600;
    }
}

/* Orientación landscape en móviles */
@media (max-width: 768px) and (orientation: landscape) {
    .config-panel h2 {
        font-size: 1.5rem;
        margin-bottom: 1rem;
    }
    
    .config-section {
        padding: 1rem;
        margin-bottom: 0.8rem;
    }
    
    .config-section h3 {
        font-size: 1.1rem;
        margin-bottom: 0.8rem;
    }
    
    .instruction-step {
        padding: 0.6rem;
        flex-direction: row;
        text-align: left;
    }
    
    .step-number {
        align-self: flex-start;
    }
    
    .ninja-tip {
        flex-direction: row;
        text-align: left;
    }
    
         .lista-cursos {
         max-height: 150px;
     }
}