/**
 * Estilos CSS para el frontend
 * Aldair LMS Pro
 * @author Aldair Florez Acuña
 */

/* ==========================================================================
   Variables CSS
   ========================================================================== */
:root {
    --aldair-primary: #D9A407;
    --aldair-primary-light: #F2E394;
    --aldair-primary-dark: #8C610F;
    --aldair-secondary: #734206;
    --aldair-text: #0D0D0D;
    --aldair-white: #ffffff;
    --aldair-gray-light: #f8f9fa;
    --aldair-gray: #e9ecef;
    --aldair-shadow: rgba(13, 13, 13, 0.1);
    --aldair-shadow-hover: rgba(13, 13, 13, 0.2);
    --aldair-border-radius: 12px;
    --aldair-border-radius-sm: 8px;
    --aldair-transition: all 0.3s ease;
}

/* ==========================================================================
   Contenedores principales
   ========================================================================== */
.aldair-lms-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

.aldair-lms-content {
    background: #fff;
    border-radius: var(--aldair-border-radius);
    box-shadow: var(--aldair-shadow);
    overflow: hidden;
}

/* ==========================================================================
   Cursos - Lista
   ========================================================================== */
.aldair-lms-courses-grid {
    display: grid;
    gap: 30px;
    margin: 30px 0;
}

.aldair-lms-courses-grid.columns-1 { grid-template-columns: 1fr; }
.aldair-lms-courses-grid.columns-2 { grid-template-columns: repeat(2, 1fr); }
.aldair-lms-courses-grid.columns-3 { grid-template-columns: repeat(3, 1fr); }
.aldair-lms-courses-grid.columns-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 768px) {
    .aldair-lms-courses-grid.columns-2,
    .aldair-lms-courses-grid.columns-3,
    .aldair-lms-courses-grid.columns-4 {
        grid-template-columns: 1fr;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .aldair-lms-courses-grid.columns-3,
    .aldair-lms-courses-grid.columns-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

.aldair-lms-course-card {
    border: 1px solid #e1e5e9;
    border-radius: var(--aldair-border-radius);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    background: #fff;
    margin-bottom: 20px;
}

.aldair-lms-course-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.aldair-lms-course-card .course-thumbnail {
    position: relative;
    overflow: hidden;
}

.aldair-lms-course-card .course-thumbnail img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.aldair-lms-course-card:hover .course-thumbnail img {
    transform: scale(1.05);
}

.aldair-lms-course-card .course-placeholder {
    height: 200px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 48px;
}

.aldair-lms-course-card .course-level {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    text-transform: uppercase;
}

.aldair-lms-course-card .course-content {
    padding: 20px;
}

.aldair-lms-course-card .course-title {
    margin: 0 0 10px 0;
    font-size: 18px;
    font-weight: 600;
}

.aldair-lms-course-card .course-title a {
    color: #2c3e50;
    text-decoration: none;
    transition: color 0.3s ease;
}

.aldair-lms-course-card .course-title a:hover {
    color: #3498db;
}

.aldair-lms-course-card .course-description {
    color: #7f8c8d;
    margin-bottom: 15px;
    line-height: 1.6;
}

.aldair-lms-course-card .course-meta {
    margin-bottom: 15px;
}

.aldair-lms-course-card .lessons-count {
    color: #95a5a6;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.aldair-lms-course-card .course-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid #ecf0f1;
    padding-top: 15px;
}

.aldair-lms-course-card .course-price {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.aldair-lms-course-card .course-price .price {
    font-size: 20px;
    font-weight: 700;
    color: #27ae60;
}

.aldair-lms-course-card .course-price .price-note {
    font-size: 11px;
    color: #95a5a6;
    margin: 0;
}

/* ==========================================================================
   Curso individual
   ========================================================================== */
.aldair-lms-course-header,
.aldair-course-header {
    background: linear-gradient(135deg, var(--aldair-primary-light), var(--aldair-white));
    color: var(--aldair-text);
    padding: 40px;
    border-radius: var(--aldair-border-radius);
    margin: 0 0 40px 0;
    box-shadow: 0 8px 30px var(--aldair-shadow);
    position: relative;
    overflow: hidden;
}

.aldair-course-header-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
    align-items: start;
}

@media (max-width: 768px) {
    .aldair-course-header-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

.aldair-lms-course-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: linear-gradient(90deg, var(--aldair-primary), var(--aldair-primary-dark), var(--aldair-secondary));
}

.aldair-lms-course-header h1 {
    font-size: 32px;
    margin: 0 0 15px 0;
}

.aldair-lms-course-header p {
    font-size: 18px;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

.aldair-lms-course-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 30px;
    padding: 30px;
}

.aldair-lms-course-description {
    font-size: 16px;
    line-height: 1.6;
    color: #333;
}

.aldair-lms-course-sidebar {
    background: var(--aldair-gray-light);
    border-radius: var(--aldair-border-radius);
    padding: 20px;
}

/* ==========================================================================
   Lecciones
   ========================================================================== */
.aldair-lms-lessons-list {
    background: #fff;
    border-radius: var(--aldair-border-radius);
    overflow: hidden;
    border: 1px solid var(--aldair-gray);
}

.aldair-lms-lesson-item {
    display: flex;
    align-items: center;
    padding: 15px 20px;
    border-bottom: 1px solid var(--aldair-gray);
    transition: background-color 0.2s ease;
}

.aldair-lms-lesson-item:last-child {
    border-bottom: none;
}

.aldair-lms-lesson-item:hover {
    background: var(--aldair-gray-light);
}

.aldair-lms-lesson-number {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: var(--aldair-primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    margin-right: 15px;
}

.aldair-lms-lesson-content {
    flex: 1;
}

.aldair-lms-lesson-title {
    font-weight: 600;
    color: var(--aldair-text);
    margin: 0 0 5px 0;
}

.aldair-lms-lesson-duration {
    font-size: 12px;
    color: #6c757d;
}

.aldair-lms-lesson-status {
    display: flex;
    align-items: center;
    gap: 10px;
}

.aldair-lms-lesson-lock {
    color: #dc3545;
    font-size: 18px;
}

.aldair-lms-lesson-check {
    color: var(--aldair-success);
    font-size: 18px;
}

.aldair-lms-lesson-price {
    font-weight: 600;
    color: var(--aldair-primary);
}

/* ==========================================================================
   Reproductor de video
   ========================================================================== */
.aldair-lms-video-container {
    position: relative;
    background: #000;
    border-radius: var(--aldair-border-radius);
    overflow: hidden;
    margin-bottom: 20px;
}

.aldair-lms-video-player {
    width: 100%;
    height: auto;
    min-height: 400px;
}

.aldair-lms-video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    color: #fff;
    text-align: center;
}

.aldair-lms-video-lock-icon {
    font-size: 48px;
    margin-bottom: 20px;
    color: #ffc107;
}

/* ==========================================================================
   Dashboard del estudiante
   ========================================================================== */
.aldair-lms-dashboard {
    background: #fff;
    border-radius: var(--aldair-border-radius);
    overflow: hidden;
}

.aldair-lms-dashboard-header {
    background: var(--aldair-primary);
    color: #fff;
    padding: 20px;
    text-align: center;
}

.aldair-lms-dashboard-nav {
    display: flex;
    background: var(--aldair-gray-light);
    border-bottom: 1px solid var(--aldair-gray);
}

.aldair-lms-nav-item {
    flex: 1;
    padding: 15px;
    text-align: center;
    background: none;
    border: none;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.aldair-lms-nav-item:hover,
.aldair-lms-nav-item.active {
    background: #fff;
    color: var(--aldair-primary);
}

.aldair-lms-dashboard-content {
    padding: 30px;
}

.aldair-lms-progress-card {
    background: var(--aldair-gray-light);
    border-radius: var(--aldair-border-radius);
    padding: 20px;
    margin-bottom: 20px;
}

.aldair-lms-progress-bar {
    width: 100%;
    height: 10px;
    background: #e9ecef;
    border-radius: 5px;
    overflow: hidden;
    margin: 10px 0;
}

.aldair-lms-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--aldair-success), #20c997);
    transition: width 0.3s ease;
}

/* ==========================================================================
   Formulario de pago
   ========================================================================== */
.aldair-lms-payment-form {
    background: #fff;
    border-radius: var(--aldair-border-radius);
    padding: 30px;
    box-shadow: var(--aldair-shadow);
    max-width: 500px;
    margin: 0 auto;
}

.aldair-lms-payment-header {
    text-align: center;
    margin-bottom: 30px;
}

.aldair-lms-payment-amount {
    font-size: 32px;
    font-weight: 700;
    color: var(--aldair-primary);
    margin: 10px 0;
}

.aldair-lms-payment-methods {
    display: grid;
    gap: 15px;
    margin-bottom: 20px;
}

.aldair-lms-payment-method {
    display: flex;
    align-items: center;
    padding: 15px;
    border: 2px solid var(--aldair-gray);
    border-radius: var(--aldair-border-radius);
    cursor: pointer;
    transition: all 0.2s ease;
}

.aldair-lms-payment-method:hover {
    border-color: var(--aldair-primary);
}

.aldair-lms-payment-method.selected {
    border-color: var(--aldair-primary);
    background: rgba(0, 124, 186, 0.1);
}

.aldair-lms-payment-method input[type="radio"] {
    margin-right: 10px;
}

.aldair-lms-payment-logo {
    width: 40px;
    height: 40px;
    margin-right: 15px;
}

/* ==========================================================================
   Botones
   ========================================================================== */
.aldair-lms-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: var(--aldair-border-radius-sm);
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: var(--aldair-transition);
    min-height: 44px;
}

.aldair-lms-btn-primary {
    background: linear-gradient(135deg, var(--aldair-primary), var(--aldair-primary-dark));
    color: var(--aldair-white);
    box-shadow: 0 4px 15px rgba(217, 164, 7, 0.3);
}

.aldair-lms-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(217, 164, 7, 0.4);
    color: var(--aldair-white);
}

.aldair-lms-btn-secondary {
    background: linear-gradient(135deg, var(--aldair-secondary), var(--aldair-primary-dark));
    color: var(--aldair-white);
    box-shadow: 0 4px 15px rgba(115, 66, 6, 0.3);
}

.aldair-lms-btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(115, 66, 6, 0.4);
    color: var(--aldair-white);
}

.aldair-lms-btn-success {
    background: linear-gradient(135deg, #28a745, #20c997);
    color: var(--aldair-white);
    box-shadow: 0 4px 15px rgba(40, 167, 69, 0.3);
}

.aldair-lms-btn-outline {
    background: transparent;
    color: var(--aldair-primary);
    border: 2px solid var(--aldair-primary);
}

.aldair-lms-btn-outline:hover {
    background: var(--aldair-primary);
    color: var(--aldair-white);
    transform: translateY(-2px);
}

.aldair-lms-btn-block {
    width: 100%;
}

.aldair-lms-btn:disabled {
    background: var(--aldair-gray);
    color: #6c757d;
    cursor: not-allowed;
    box-shadow: none;
}

.aldair-lms-btn:disabled:hover {
    transform: none;
    box-shadow: none;
}

/* ==========================================================================
   Alertas y mensajes
   ========================================================================== */
.aldair-lms-alert {
    padding: 15px 20px;
    border-radius: var(--aldair-border-radius-sm);
    margin: 15px 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.aldair-lms-alert-success {
    background: #d4edda;
    border: 1px solid #c3e6cb;
    color: #155724;
}

.aldair-lms-alert-error {
    background: #f8d7da;
    border: 1px solid #f5c6cb;
    color: #721c24;
}

.aldair-lms-alert-warning {
    background: #fff3cd;
    border: 1px solid #fdefb2;
    color: #856404;
}

.aldair-lms-alert-info {
    background: #d1ecf1;
    border: 1px solid #bee5eb;
    color: #0c5460;
}

/* ==========================================================================
   Loading states
   ========================================================================== */
.aldair-lms-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
}

.aldair-lms-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--aldair-primary-light);
    border-top: 4px solid var(--aldair-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ==========================================================================
   Materiales de apoyo
   ========================================================================== */
.aldair-lms-materials {
    background: var(--aldair-gray-light);
    border-radius: var(--aldair-border-radius);
    padding: 20px;
    margin-top: 20px;
}

.aldair-lms-materials h3 {
    margin-top: 0;
    color: var(--aldair-text);
}

.aldair-lms-material-item {
    display: flex;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid var(--aldair-gray);
}

.aldair-lms-material-item:last-child {
    border-bottom: none;
}

.aldair-lms-material-icon {
    width: 20px;
    margin-right: 10px;
    color: var(--aldair-primary);
}

.aldair-lms-material-link {
    color: var(--aldair-primary);
    text-decoration: none;
    font-weight: 500;
}

.aldair-lms-material-link:hover {
    text-decoration: underline;
}

/* ==========================================================================
   Responsivo
   ========================================================================== */
@media (max-width: 768px) {
    .aldair-lms-courses-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .aldair-lms-course-content {
        grid-template-columns: 1fr;
    }
    
    .aldair-lms-dashboard-nav {
        flex-direction: column;
    }
    
    .aldair-lms-course-header h1 {
        font-size: 24px;
    }
    
    .aldair-lms-course-header p {
        font-size: 16px;
    }
    
    .aldair-lms-payment-form {
        margin: 0 15px;
        padding: 20px;
    }
}

@media (max-width: 480px) {
    .aldair-lms-container {
        padding: 0 10px;
    }
    
    .aldair-lms-course-info {
        padding: 15px;
    }
    
    .aldair-lms-lesson-item {
        padding: 10px 15px;
    }
    
    .aldair-lms-btn {
        padding: 10px 20px;
        font-size: 13px;
    }
}

/* ==========================================================================
   Grid de Cursos
   ========================================================================== */

.aldair-lms-courses-grid {
    display: grid;
    gap: 30px;
    margin: 30px 0;
}

.aldair-lms-courses-grid.columns-1 { grid-template-columns: 1fr; }
.aldair-lms-courses-grid.columns-2 { grid-template-columns: repeat(2, 1fr); }
.aldair-lms-courses-grid.columns-3 { grid-template-columns: repeat(3, 1fr); }
.aldair-lms-courses-grid.columns-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 768px) {
    .aldair-lms-courses-grid.columns-2,
    .aldair-lms-courses-grid.columns-3,
    .aldair-lms-courses-grid.columns-4 {
        grid-template-columns: 1fr;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .aldair-lms-courses-grid.columns-3,
    .aldair-lms-courses-grid.columns-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ==========================================================================
   Templates - Curso y Lección Individual
   ========================================================================== */

.aldair-lms-single-course-container {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

.course-hero-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 60px 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.course-hero-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: start;
}

@media (max-width: 768px) {
    .course-hero-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

.course-info .course-title {
    font-size: 48px;
    font-weight: 700;
    margin: 0 0 20px 0;
    line-height: 1.2;
}

@media (max-width: 768px) {
    .course-info .course-title {
        font-size: 32px;
    }
}

.course-info .course-subtitle {
    font-size: 20px;
    margin: 0 0 30px 0;
    opacity: 0.9;
    line-height: 1.5;
}

.course-meta-info {
    display: flex;
    gap: 25px;
    flex-wrap: wrap;
}

.course-meta-info span {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 25px;
    font-size: 14px;
    font-weight: 500;
}

.course-enrollment-card {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    position: sticky;
    top: 20px;
}

.course-thumbnail img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.pricing-section {
    padding: 30px;
}

.course-price {
    margin-bottom: 20px;
}

.course-price.free .price-label {
    font-size: 28px;
    font-weight: 700;
    color: #28a745;
}

.course-price .current-price,
.course-price .sale-price {
    font-size: 32px;
    font-weight: 700;
    color: #333;
}

.course-price .regular-price {
    font-size: 20px;
    color: #999;
    text-decoration: line-through;
    margin-left: 10px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    line-height: 1;
}

.btn-primary {
    background: #007cba;
    color: white;
}

.btn-primary:hover {
    background: #005a87;
    transform: translateY(-2px);
}

.btn-success {
    background: #28a745;
    color: white;
}

.btn-success:hover {
    background: #1e7e34;
}

.btn-outline {
    background: transparent;
    color: #007cba;
    border: 2px solid #007cba;
}

.btn-outline:hover {
    background: #007cba;
    color: #fff;
}

.btn-large {
    padding: 16px 32px;
    font-size: 18px;
    width: 100%;
}

.btn-small {
    padding: 8px 16px;
    font-size: 14px;
}

.course-main-content {
    padding: 60px 0;
    background: #f8f9fa;
}

.course-content-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
}

@media (max-width: 768px) {
    .course-content-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

.course-main-column section {
    background: white;
    padding: 40px;
    border-radius: 16px;
    margin-bottom: 30px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.course-main-column h2 {
    font-size: 28px;
    font-weight: 700;
    margin: 0 0 20px 0;
    color: #333;
}

.course-content {
    line-height: 1.7;
    color: #555;
}

.lessons-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.lesson-item {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 12px;
    border: 1px solid #e9ecef;
    transition: all 0.3s ease;
}

.lesson-item:hover {
    background: white;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.lesson-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: #007cba;
    color: white;
    border-radius: 50%;
    font-weight: 700;
    font-size: 16px;
    flex-shrink: 0;
}

.lesson-content {
    flex: 1;
}

.lesson-title {
    font-size: 18px;
    font-weight: 600;
    margin: 0 0 8px 0;
    color: #333;
}

.lesson-meta {
    display: flex;
    gap: 15px;
    margin-bottom: 8px;
}

.lesson-meta span {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 14px;
    color: #666;
}

.lesson-excerpt {
    font-size: 14px;
    color: #777;
    margin: 0;
}

.lesson-actions {
    flex-shrink: 0;
}

.lesson-pricing {
    display: flex;
    align-items: center;
    gap: 12px;
}

.lesson-price {
    font-size: 18px;
    font-weight: 700;
    color: #007cba;
}

.lesson-locked {
    display: flex;
    align-items: center;
    gap: 6px;
    color: #999;
    font-size: 14px;
}

.course-sidebar {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.course-info-card {
    background: white;
    padding: 30px;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    position: sticky;
    top: 20px;
}

.course-info-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin: 0 0 20px 0;
    color: #333;
}

.course-info-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.course-info-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid #f0f0f0;
    font-size: 14px;
    color: #555;
}

.course-info-list li:last-child {
    border-bottom: none;
}

.course-info-list i {
    color: #007cba;
    width: 16px;
}

/* Lección Individual */
.aldair-lms-single-lesson-container {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

.lesson-breadcrumb {
    background: #f8f9fa;
    padding: 20px 0;
    border-bottom: 1px solid #e9ecef;
}

.lesson-breadcrumb nav {
    font-size: 14px;
}

.lesson-breadcrumb a {
    color: #007cba;
    text-decoration: none;
}

.lesson-breadcrumb a:hover {
    text-decoration: underline;
}

.lesson-breadcrumb .separator {
    margin: 0 10px;
    color: #999;
}

.lesson-breadcrumb .current {
    color: #333;
    font-weight: 600;
}

.lesson-content-area {
    padding: 40px 0;
}

.lesson-video-player {
    margin-bottom: 40px;
    background: #000;
    border-radius: 12px;
    overflow: hidden;
}

.video-container {
    position: relative;
    width: 100%;
    height: 0;
    padding-bottom: 56.25%;
}

.video-container iframe,
.video-container video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.lesson-info-header {
    margin-bottom: 30px;
}

.lesson-info-header .lesson-title {
    font-size: 32px;
    font-weight: 700;
    margin: 0 0 15px 0;
    color: #333;
}

.lesson-free-badge {
    background: #d4edda !important;
    color: #155724 !important;
}

.lesson-navigation {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.lesson-access-required {
    padding: 80px 0;
    background: #f8f9fa;
    min-height: 60vh;
    display: flex;
    align-items: center;
}

.access-message {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.access-icon {
    font-size: 64px;
    color: #dc3545;
    margin-bottom: 30px;
}

.access-message h2 {
    font-size: 32px;
    font-weight: 700;
    margin: 0 0 15px 0;
    color: #333;
}

.access-message > p {
    font-size: 18px;
    color: #666;
    margin-bottom: 40px;
}

.lesson-preview {
    background: white;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    margin-bottom: 30px;
    text-align: left;
}

.lesson-preview h3 {
    font-size: 24px;
    font-weight: 700;
    margin: 0 0 15px 0;
    color: #333;
}

.lesson-details {
    display: flex;
    gap: 20px;
    margin-bottom: 15px;
    flex-wrap: wrap;
}

.detail-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    color: #666;
}

.detail-item.price {
    color: #007cba;
    font-weight: 700;
    font-size: 16px;
}

.lesson-excerpt p {
    color: #777;
    line-height: 1.6;
    margin: 0;
}

.purchase-options {
    text-align: center;
}

.course-option {
    margin-top: 20px;
    font-size: 16px;
    color: #666;
}

.course-option a {
    color: #007cba;
    text-decoration: none;
    font-weight: 600;
}

.course-option a:hover {
    text-decoration: underline;
}

/* ==========================================================================
   Curso Individual Original (mantener compatibilidad)
   ========================================================================== */

.aldair-lms-single-course {
    max-width: 1200px;
    margin: 0 auto;
    padding: 30px 20px;
}

.course-header {
    display: flex;
    gap: 40px;
    margin-bottom: 40px;
    padding: 30px;
    background: #f8f9fa;
    border-radius: 8px;
}

.course-info {
    flex: 1;
}

.course-info h1 {
    margin: 0 0 15px 0;
    color: #2c3e50;
    font-size: 32px;
    font-weight: 700;
}

.course-description {
    font-size: 16px;
    color: #7f8c8d;
    margin-bottom: 20px;
    line-height: 1.6;
}

.course-meta {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.course-meta > span {
    background: #ecf0f1;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 14px;
    color: #2c3e50;
}

.course-pricing {
    min-width: 300px;
    padding: 25px;
    background: white;
    border: 2px solid #3498db;
    border-radius: 8px;
    text-align: center;
}

.course-pricing .price {
    font-size: 36px;
    font-weight: 700;
    color: #27ae60;
    margin-bottom: 5px;
}

.course-pricing .price-note {
    font-size: 12px;
    color: #95a5a6;
    margin: 0 0 15px 0;
}

.course-pricing .payment-info {
    text-align: left;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid #ecf0f1;
}

.course-pricing .payment-info p {
    margin: 5px 0;
    font-size: 14px;
    color: #7f8c8d;
}

/* ==========================================================================
   Curriculum del Curso
   ========================================================================== */

.course-curriculum {
    margin-top: 40px;
}

.course-curriculum h3 {
    margin-bottom: 20px;
    color: #2c3e50;
    font-size: 24px;
    font-weight: 600;
}

.lessons-list {
    border: 1px solid #e1e5e9;
    border-radius: 8px;
    overflow: hidden;
}

.lesson-item {
    display: flex;
    align-items: center;
    padding: 20px;
    border-bottom: 1px solid #e1e5e9;
    transition: background-color 0.3s ease;
}

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

.lesson-item:hover {
    background-color: #f8f9fa;
}

.lesson-item.has-access {
    background-color: #e8f5e8;
}

.lesson-item.locked {
    background-color: #fff5f5;
}

.lesson-number {
    width: 40px;
    height: 40px;
    background: #3498db;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    margin-right: 20px;
    flex-shrink: 0;
}

.lesson-item.has-access .lesson-number {
    background: #27ae60;
}

.lesson-item.locked .lesson-number {
    background: #e74c3c;
}

.lesson-info {
    flex: 1;
}

.lesson-info h4 {
    margin: 0 0 8px 0;
    color: #2c3e50;
    font-size: 16px;
    font-weight: 600;
}

.lesson-duration,
.lesson-price {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    margin-right: 15px;
    font-size: 14px;
    color: #7f8c8d;
}

.lesson-price {
    color: #27ae60;
    font-weight: 600;
}

.lesson-actions {
    flex-shrink: 0;
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
}

.btn-primary {
    background: #3498db;
    color: white;
}

.btn-primary:hover {
    background: #2980b9;
    color: white;
}

.btn-success {
    background: #27ae60;
    color: white;
}

.btn-success:hover {
    background: #229954;
    color: white;
}

.btn-secondary {
    background: #95a5a6;
    color: white;
}

.btn-secondary:hover {
    background: #7f8c8d;
    color: white;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.lesson-locked {
    color: #e74c3c;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 5px;
}

/* ==========================================================================
   Course Details
   ========================================================================== */

.course-details {
    margin-top: 40px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.what-learn,
.requirements {
    background: #f8f9fa;
    padding: 25px;
    border-radius: 8px;
}

.what-learn h3,
.requirements h3 {
    margin: 0 0 15px 0;
    color: #2c3e50;
    font-size: 18px;
    font-weight: 600;
}

.what-learn ul,
.requirements ul {
    margin: 0;
    padding-left: 20px;
}

.what-learn li,
.requirements li {
    margin-bottom: 8px;
    color: #7f8c8d;
    line-height: 1.5;
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 768px) {
    .course-header {
        flex-direction: column;
        gap: 20px;
    }
    
    .course-pricing {
        min-width: auto;
    }
    
    .course-details {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .lesson-item {
        flex-wrap: wrap;
        gap: 10px;
    }
    
    .lesson-actions {
        width: 100%;
        margin-top: 10px;
    }
    
    .lesson-actions .btn {
        width: 100%;
        justify-content: center;
    }
}

/* ==========================================================================
   Loading States
   ========================================================================== */

.fa-spinner {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ==========================================================================
   Utilities
   ========================================================================== */

.text-center {
    text-align: center;
}

.mb-20 {
    margin-bottom: 20px;
}

.mt-20 {
    margin-top: 20px;
}

/* ==========================================================================
   ESTILOS FORZADOS PARA SOBRESCRIBIR TEMA
   ========================================================================== */
.aldair-lms-single-course .lessons-list {
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
    margin: 20px 0 !important;
    padding: 0 !important;
}

.aldair-lms-single-course .lesson-item {
    display: flex !important;
    visibility: visible !important;
    opacity: 1 !important;
    align-items: center !important;
    background: #fff !important;
    border: 1px solid #e1e5e9 !important;
    border-radius: 8px !important;
    margin-bottom: 15px !important;
    padding: 20px !important;
    transition: all 0.3s ease !important;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1) !important;
}

.aldair-lms-single-course .lesson-item:hover {
    transform: translateY(-2px) !important;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15) !important;
    border-color: #007cba !important;
}

.aldair-lms-single-course .lesson-info {
    display: flex !important;
    align-items: center !important;
    flex: 1 !important;
    gap: 15px !important;
}

.aldair-lms-single-course .lesson-number {
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    min-width: 60px !important;
    height: 60px !important;
    background: #f8f9fa !important;
    border-radius: 50% !important;
    font-weight: bold !important;
    font-size: 18px !important;
    color: #495057 !important;
    position: relative !important;
}

.aldair-lms-single-course .lesson-status {
    position: absolute !important;
    top: -5px !important;
    right: -5px !important;
    font-size: 16px !important;
    background: #fff !important;
    border-radius: 50% !important;
    padding: 2px !important;
    box-shadow: 0 1px 3px rgba(0,0,0,0.2) !important;
}

.aldair-lms-single-course .lesson-details {
    flex: 1 !important;
}

.aldair-lms-single-course .lesson-details h4 {
    margin: 0 0 8px 0 !important;
    font-size: 18px !important;
    font-weight: 600 !important;
    color: #2c3e50 !important;
}

.aldair-lms-single-course .lesson-details p {
    margin: 0 0 10px 0 !important;
    color: #6c757d !important;
    font-size: 14px !important;
    line-height: 1.4 !important;
}

.aldair-lms-single-course .lesson-price {
    display: inline-block !important;
    background: #e8f5e8 !important;
    color: #28a745 !important;
    padding: 4px 8px !important;
    border-radius: 4px !important;
    font-weight: 600 !important;
    font-size: 14px !important;
}

.aldair-lms-single-course .lesson-actions {
    display: flex !important;
    gap: 10px !important;
    align-items: center !important;
}

.aldair-lms-single-course .btn {
    display: inline-flex !important;
    align-items: center !important;
    gap: 8px !important;
    padding: 12px 20px !important;
    border: none !important;
    border-radius: 6px !important;
    font-weight: 600 !important;
    font-size: 14px !important;
    text-decoration: none !important;
    cursor: pointer !important;
    transition: all 0.3s ease !important;
    white-space: nowrap !important;
}

.aldair-lms-single-course .btn-primary {
    background: linear-gradient(135deg, #007cba 0%, #005a87 100%) !important;
    color: #fff !important;
    box-shadow: 0 2px 4px rgba(0, 124, 186, 0.3) !important;
}

.aldair-lms-single-course .btn-primary:hover {
    background: linear-gradient(135deg, #005a87 0%, #004466 100%) !important;
    transform: translateY(-1px) !important;
    box-shadow: 0 4px 8px rgba(0, 124, 186, 0.4) !important;
}

.aldair-lms-single-course .btn-success {
    background: linear-gradient(135deg, #28a745 0%, #1e7e34 100%) !important;
    color: #fff !important;
    box-shadow: 0 2px 4px rgba(40, 167, 69, 0.3) !important;
}

.aldair-lms-single-course .btn-success:hover {
    background: linear-gradient(135deg, #1e7e34 0%, #155724 100%) !important;
    transform: translateY(-1px) !important;
    box-shadow: 0 4px 8px rgba(40, 167, 69, 0.4) !important;
}

/* Iconos de Font Awesome */
.aldair-lms-single-course .fas,
.aldair-lms-single-course .fa {
    display: inline-block !important;
    font-family: "Font Awesome 5 Free" !important;
    font-weight: 900 !important;
    font-style: normal !important;
    font-variant: normal !important;
    text-rendering: auto !important;
    line-height: 1 !important;
}

/* Responsive para móviles */
@media (max-width: 768px) {
    .aldair-lms-single-course .lesson-item {
        flex-direction: column !important;
        align-items: stretch !important;
        gap: 15px !important;
    }
    
    .aldair-lms-single-course .lesson-info {
        flex-direction: column !important;
        align-items: flex-start !important;
        gap: 10px !important;
    }
    
    .aldair-lms-single-course .lesson-actions {
        justify-content: stretch !important;
    }
    
    .aldair-lms-single-course .btn {
        flex: 1 !important;
        justify-content: center !important;
    }
} 
/* ===== NUEVOS ESTILOS PARA DISEÑO MODERNO ===== */

/* Header del curso mejorado */
.aldair-course-header {
    background: linear-gradient(135deg, var(--aldair-primary-light), var(--aldair-white));
    color: var(--aldair-text);
    padding: 40px;
    border-radius: var(--aldair-border-radius);
    margin: 0 0 40px 0;
    box-shadow: 0 8px 30px var(--aldair-shadow);
    position: relative;
    overflow: hidden;
}

.aldair-course-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: linear-gradient(90deg, var(--aldair-primary), var(--aldair-primary-dark), var(--aldair-secondary));
}

.aldair-course-header-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
    align-items: start;
}

.aldair-course-info h1 {
    font-size: 36px;
    font-weight: 700;
    margin: 0 0 20px 0;
    color: var(--aldair-text);
    line-height: 1.2;
}

.aldair-course-description {
    font-size: 18px;
    color: #555;
    margin: 0 0 25px 0;
    line-height: 1.6;
}

.aldair-course-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    font-size: 14px;
}

.aldair-course-meta span {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--aldair-white);
    border-radius: 20px;
    color: var(--aldair-secondary);
    font-weight: 500;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.aldair-course-meta i {
    color: var(--aldair-primary);
}

.aldair-course-pricing {
    background: var(--aldair-white);
    border-radius: var(--aldair-border-radius);
    padding: 30px;
    text-align: center;
    box-shadow: 0 8px 30px var(--aldair-shadow);
    border: 3px solid var(--aldair-primary-light);
}

.aldair-course-price {
    font-size: 48px;
    font-weight: 700;
    color: var(--aldair-primary);
    margin: 0 0 10px 0;
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.aldair-price-note {
    color: #666;
    font-size: 14px;
    margin: 0 0 20px 0;
}

.aldair-payment-info {
    background: var(--aldair-primary-light);
    border-radius: var(--aldair-border-radius-sm);
    padding: 20px;
    margin-top: 20px;
}

.aldair-payment-info h4 {
    color: var(--aldair-secondary);
    margin: 0 0 10px 0;
    font-size: 16px;
}

.aldair-payment-info p {
    color: var(--aldair-text);
    font-size: 14px;
    margin: 0;
    line-height: 1.5;
}

/* Responsive para el nuevo diseño */
@media (max-width: 768px) {
    .aldair-course-header-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .aldair-course-info h1 {
        font-size: 28px;
    }
    
    .aldair-course-price {
        font-size: 36px;
    }
}

@media (max-width: 480px) {
    .aldair-course-header {
        padding: 25px 20px;
    }
}