/**
 * EasyLearn Frontend Styles - Bootstrap 5 Compatible
 * Version: 2.5.4
 * Copyright (C) 2025 EasyLearn. All rights reserved.
 *
 * Color variables are injected dynamically from component configuration.
 * All colors use CSS custom properties defined within .easylearn-component scope.
 */

/* ==========================================================================
   Fallback Color Variables (overridden by PHP-injected values)
   ========================================================================== */
.easylearn-component {
    --easylearn-primary: #0d6efd;
    --easylearn-primary-hover: #0b5ed7;
    --easylearn-primary-text: #ffffff;
    --easylearn-secondary: #6c757d;
    --easylearn-secondary-hover: #5c636a;
    --easylearn-secondary-text: #ffffff;
    --easylearn-success: #198754;
    --easylearn-success-hover: #157347;
    --easylearn-success-text: #ffffff;
    --easylearn-accent: #D4A574;
    --easylearn-accent-hover: #b88c5f;
    --easylearn-accent-text: #212529;
    --easylearn-focus-shadow: rgba(13, 110, 253, 0.25);
}

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

.easylearn-component .easylearn-btn-primary,
.easylearn-component .btn-primary {
    background-color: var(--easylearn-primary);
    border-color: var(--easylearn-primary);
    color: var(--easylearn-primary-text);
}

.easylearn-component .easylearn-btn-primary:hover,
.easylearn-component .easylearn-btn-primary:focus,
.easylearn-component .btn-primary:hover,
.easylearn-component .btn-primary:focus {
    background-color: var(--easylearn-primary-hover);
    border-color: var(--easylearn-primary-hover);
    color: var(--easylearn-primary-text);
}

.easylearn-component .easylearn-btn-primary:focus,
.easylearn-component .btn-primary:focus {
    box-shadow: 0 0 0 0.25rem var(--easylearn-focus-shadow);
}

/* Outline Primary */
.easylearn-component .btn-outline-primary {
    color: var(--easylearn-primary);
    border-color: var(--easylearn-primary);
    background-color: transparent;
}

.easylearn-component .btn-outline-primary:hover,
.easylearn-component .btn-outline-primary:focus {
    background-color: var(--easylearn-primary);
    border-color: var(--easylearn-primary);
    color: var(--easylearn-primary-text);
}

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

.easylearn-component .easylearn-btn-secondary,
.easylearn-component .btn-secondary {
    background-color: var(--easylearn-secondary);
    border-color: var(--easylearn-secondary);
    color: var(--easylearn-secondary-text);
}

.easylearn-component .easylearn-btn-secondary:hover,
.easylearn-component .easylearn-btn-secondary:focus,
.easylearn-component .btn-secondary:hover,
.easylearn-component .btn-secondary:focus {
    background-color: var(--easylearn-secondary-hover);
    border-color: var(--easylearn-secondary-hover);
    color: var(--easylearn-secondary-text);
}

/* Outline Secondary */
.easylearn-component .btn-outline-secondary {
    color: var(--easylearn-secondary);
    border-color: var(--easylearn-secondary);
}

.easylearn-component .btn-outline-secondary:hover,
.easylearn-component .btn-outline-secondary:focus {
    background-color: var(--easylearn-secondary);
    border-color: var(--easylearn-secondary);
    color: var(--easylearn-secondary-text);
}

/* ==========================================================================
   Success/Progress Elements
   ========================================================================== */

.easylearn-component .progress-bar,
.easylearn-component .easylearn-progress-bar {
    background-color: var(--easylearn-success);
}

.easylearn-component .badge.bg-success,
.easylearn-component .easylearn-badge-success {
    background-color: var(--easylearn-success) !important;
    color: var(--easylearn-success-text);
}

.easylearn-component .btn-success {
    background-color: var(--easylearn-success);
    border-color: var(--easylearn-success);
    color: var(--easylearn-success-text);
}

.easylearn-component .btn-success:hover,
.easylearn-component .btn-success:focus {
    background-color: var(--easylearn-success-hover);
    border-color: var(--easylearn-success-hover);
    color: var(--easylearn-success-text);
}

/* ==========================================================================
   Accent/Decorative Elements
   ========================================================================== */

.easylearn-component .easylearn-course-divider {
    width: 60px;
    height: 3px;
    background: var(--easylearn-accent);
    border: none;
}

.easylearn-component .easylearn-accent-border {
    border-color: var(--easylearn-accent);
}

/* ==========================================================================
   Links
   ========================================================================== */

.easylearn-component a:not(.btn) {
    color: var(--easylearn-primary);
}

.easylearn-component a:not(.btn):hover {
    color: var(--easylearn-primary-hover);
}

/* ==========================================================================
   Course Catalog - Custom Components
   ========================================================================== */

.easylearn-component .easylearn-course-card {
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.easylearn-component .easylearn-course-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15) !important;
}

.easylearn-component .easylearn-course-img {
    max-width: 200px;
    max-height: 125px;
    width: auto;
    height: auto;
    object-fit: cover;
    border-radius: 8px;
}

/* Responsive image sizing */
@media (max-width: 1199px) and (min-width: 768px) {
    .easylearn-component .easylearn-course-img {
        max-width: 150px;
        max-height: 94px;
    }
}

@media (max-width: 991px) and (min-width: 768px) {
    .easylearn-component .easylearn-course-img {
        max-width: 130px;
        max-height: 81px;
    }
}

.easylearn-component .easylearn-course-button {
    border-color: var(--easylearn-primary);
    color: var(--easylearn-primary);
    transition: all 0.2s ease;
}

.easylearn-component .easylearn-course-button:hover {
    background-color: var(--easylearn-primary);
    border-color: var(--easylearn-primary);
    color: var(--easylearn-primary-text);
}

/* ==========================================================================
   Course Detail - Hero Section
   ========================================================================== */

.easylearn-component .easylearn-course-hero {
    position: relative;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.easylearn-component .easylearn-course-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
}

.easylearn-component .easylearn-course-hero-content {
    position: relative;
    padding: 3rem 1rem;
    width: 100%;
    z-index: 1;
}

.easylearn-component .hero-button-adaptive {
    transition: all 0.3s ease;
}

.easylearn-component .easylearn-start-course-button {
    background-color: var(--easylearn-primary);
    border-color: var(--easylearn-primary);
    color: var(--easylearn-primary-text);
    transition: background-color 0.2s ease;
}

.easylearn-component .easylearn-start-course-button:hover {
    background-color: var(--easylearn-primary-hover);
    border-color: var(--easylearn-primary-hover);
}

/* Responsive hero */
@media (max-width: 768px) {
    .easylearn-component .easylearn-course-hero {
        min-height: 300px;
    }

    .easylearn-component .easylearn-course-hero h1 {
        font-size: 2rem;
    }

    .easylearn-component .easylearn-course-hero .lead {
        font-size: 1.1rem;
    }
}

/* ==========================================================================
   Course Detail - Module Accordion
   ========================================================================== */

.easylearn-component .accordion-item {
    border: 1px solid #dee2e6;
    border-radius: 8px;
}

.easylearn-component .accordion-button {
    background-color: #f8f9fa;
    font-weight: 600;
    font-size: 1.1rem;
}

.easylearn-component .accordion-button:not(.collapsed) {
    background-color: var(--easylearn-primary);
    color: var(--easylearn-primary-text);
}

.easylearn-component .accordion-button:focus {
    box-shadow: 0 0 0 0.25rem var(--easylearn-focus-shadow);
}

/* Lesson list styling */
.easylearn-component .list-group-item {
    transition: background-color 0.2s ease;
}

.easylearn-component .list-group-item:hover {
    background-color: #f8f9fa;
}

/* ==========================================================================
   Lesson Icons and Status
   ========================================================================== */

.easylearn-component .easylearn-lesson-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.easylearn-component .easylearn-lesson-status {
    font-size: 1.1rem;
    width: 20px;
    text-align: center;
}

.easylearn-component .easylearn-lesson-status.completed {
    color: var(--easylearn-success);
}

.easylearn-component .easylearn-lesson-status.current {
    color: var(--easylearn-primary);
    font-weight: bold;
}

.easylearn-component .easylearn-lesson-status.in-progress {
    color: #ffc107;
}

.easylearn-component .easylearn-lesson-status.not-started {
    color: var(--easylearn-secondary);
}

/* Lesson Thumbnails */
.easylearn-component .easylearn-lesson-thumbnail {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.easylearn-component .easylearn-lesson-thumbnail:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

.easylearn-component .easylearn-lesson-image-container {
    width: 120px;
    height: 75px;
    flex-shrink: 0;
    overflow: hidden;
    border-radius: 8px;
}

@media (max-width: 768px) {
    .easylearn-component .easylearn-lesson-image-container {
        width: 100%;
        height: auto;
        aspect-ratio: 16/10;
        margin-bottom: 1rem;
    }

    .easylearn-component .easylearn-lesson-mobile-stack {
        flex-direction: column;
    }

    .easylearn-component .easylearn-lesson-mobile-stack .easylearn-lesson-image-container {
        order: -1;
        margin-right: 0 !important;
        margin-bottom: 0.75rem;
    }
}

/* ==========================================================================
   Content Blocks
   ========================================================================== */

.easylearn-component .easylearn-content-block video,
.easylearn-component .easylearn-content-block audio {
    width: 100%;
}

.easylearn-component .easylearn-text-block {
    line-height: 1.6;
}

.easylearn-component .easylearn-text-block p {
    margin-bottom: 1rem;
}

.easylearn-component .easylearn-text-block h1,
.easylearn-component .easylearn-text-block h2,
.easylearn-component .easylearn-text-block h3,
.easylearn-component .easylearn-text-block h4,
.easylearn-component .easylearn-text-block h5,
.easylearn-component .easylearn-text-block h6 {
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.easylearn-component .easylearn-video-block video,
.easylearn-component .easylearn-audio-block audio {
    max-width: 100%;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.easylearn-component .easylearn-video-block,
.easylearn-component .easylearn-audio-block {
    background: #f8f9fa;
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid #dee2e6;
}

/* ==========================================================================
   Progress Bar Enhancement
   ========================================================================== */

.easylearn-component .progress {
    background-color: #e9ecef;
    border-radius: 10px;
    overflow: hidden;
}

.easylearn-component .progress-bar {
    transition: width 0.3s ease;
    border-radius: 10px;
}

.easylearn-component .easylearn-progress-custom {
    background-color: var(--easylearn-success) !important;
}

/* ==========================================================================
   Instructor Section
   ========================================================================== */

.easylearn-component .easylearn-instructor-desc * {
    font-size: 1rem;
}

.easylearn-component .easylearn-instructor-photo {
    width: 80px;
    height: 80px;
    object-fit: cover;
}

@media (max-width: 992px) {
    .easylearn-component .easylearn-instructor-photo {
        width: 60px;
        height: 60px;
    }
}

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

.easylearn-component .easylearn-nav-button {
    background-color: var(--easylearn-primary);
    border-color: var(--easylearn-primary);
    color: var(--easylearn-primary-text);
}

.easylearn-component .easylearn-nav-button:hover {
    background-color: var(--easylearn-primary-hover);
    border-color: var(--easylearn-primary-hover);
}

/* ==========================================================================
   File Downloads
   ========================================================================== */

.easylearn-component .easylearn-file-download {
    transition: background-color 0.2s ease;
    border-radius: 6px;
}

.easylearn-component .easylearn-file-download:hover {
    background-color: #f8f9fa !important;
}

/* ==========================================================================
   Breadcrumb
   ========================================================================== */

.easylearn-component .breadcrumb {
    background-color: transparent !important;
    padding: 0;
}

.easylearn-component .breadcrumb a {
    color: var(--easylearn-primary);
}

.easylearn-component .breadcrumb a:hover {
    color: var(--easylearn-primary-hover);
}

/* ==========================================================================
   Lesson Viewer Specific
   ========================================================================== */

.easylearn-component.easylearn-lesson-viewer .easylearn-content-block {
    margin-bottom: 2rem;
}

.easylearn-component.easylearn-lesson-viewer .list-group-item {
    border: none !important;
}

.easylearn-component.easylearn-lesson-viewer .list-group-item.bg-light {
    border-left: 4px solid var(--easylearn-primary) !important;
}

.easylearn-component.easylearn-lesson-viewer .btn {
    transition: all 0.2s ease;
}

.easylearn-component.easylearn-lesson-viewer .btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

/* ==========================================================================
   Lesson Thumbnails (small)
   ========================================================================== */

.easylearn-component .lesson-thumbnail {
    width: 60px;
    height: 60px;
    object-fit: cover;
    transition: transform 0.2s ease;
}

.easylearn-component .lesson-thumbnail:hover {
    transform: scale(1.05);
}

@media (max-width: 768px) {
    .easylearn-component .lesson-thumbnail {
        width: 50px;
        height: 50px;
    }
}

@media (max-width: 576px) {
    .easylearn-component .lesson-thumbnail {
        width: 40px;
        height: 40px;
    }
}

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

@media (max-width: 992px) {
    .easylearn-component .col-lg-8 {
        margin-bottom: 2rem;
    }

    .easylearn-component.easylearn-lesson-viewer .col-lg-9 {
        margin-bottom: 2rem;
    }

    .easylearn-component.easylearn-lesson-viewer .d-flex.justify-content-between {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

@media (max-width: 768px) {
    .easylearn-component.easylearn-lesson-viewer .container {
        margin-top: 1rem;
        margin-bottom: 1rem;
    }

    .easylearn-component.easylearn-lesson-viewer h1 {
        font-size: 1.5rem;
    }

    .easylearn-component.easylearn-lesson-viewer .lead {
        font-size: 1rem;
    }

    .easylearn-component.easylearn-lesson-viewer .breadcrumb {
        font-size: 0.9rem;
    }

    .easylearn-component.easylearn-lesson-viewer .d-flex.justify-content-between .btn {
        width: 100%;
        margin-bottom: 0.5rem;
    }
}

@media (max-width: 576px) {
    .easylearn-component .easylearn-course-hero {
        height: 200px;
    }

    .easylearn-component .easylearn-course-hero h1 {
        font-size: 1.5rem;
    }

    .easylearn-component .easylearn-course-hero .lead {
        font-size: 1rem;
    }

    .easylearn-component .easylearn-start-course-button {
        padding: 0.75rem 2rem;
        font-size: 0.9rem;
    }

    .easylearn-component.easylearn-lesson-viewer .card-body {
        padding: 1rem;
    }

    .easylearn-component.easylearn-lesson-viewer .card-header {
        padding: 0.75rem 1rem;
    }

    .easylearn-component .easylearn-file-download {
        padding: 0.5rem !important;
    }

    .easylearn-component .easylearn-file-download .btn-sm {
        padding: 0.25rem 0.5rem;
        font-size: 0.8rem;
    }
}