/*
SKELETON LOADER STYLES
======================
CSS animations and styles for loading states throughout the course view.

Features:
- Smooth shimmer animations for content loading
- Elegant and minimal skeleton templates
- Progressive loading states for better UX
- Accessible loading indicators

Usage:
- Apply .skeleton class to any element for basic shimmer effect
- Use specific skeleton templates for modules/lessons
- Remove skeleton classes when real content loads
*/

/* Base Skeleton Animation - Improved shimmer using CSS variables */
@keyframes shimmer {
    0% {
        background-position: -200px 0;
    }
    100% {
        background-position: calc(200px + 100%) 0;
    }
}

.skeleton {
    background: linear-gradient(
        90deg, 
        var(--skeleton-base) 25%, 
        var(--skeleton-highlight) 50%, 
        var(--skeleton-base) 75%
    );
    background-size: 200px 100%;
    animation: shimmer 1.8s ease-in-out infinite;
    border-radius: 0.5rem;
}

/* Elegant Module Skeleton Loading */
.module-skeleton {
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: var(--background-color);
    border-radius: 0.75rem;
    border: 1px solid rgba(0, 0, 0, 0.06);
}

.module-skeleton-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.module-skeleton-icon {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    flex-shrink: 0;
}

.module-skeleton-title {
    height: 18px;
    width: 65%;
    border-radius: 0.375rem;
}

.module-skeleton-progress {
    height: 6px;
    width: 100%;
    margin-bottom: 0.75rem;
    border-radius: 3px;
}

.module-skeleton-lessons {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

/* Refined Lesson Skeleton Loading */
.lesson-skeleton {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0;
}

.lesson-skeleton-icon {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    flex-shrink: 0;
}

.lesson-skeleton-title {
    height: 14px;
    flex: 1;
    border-radius: 0.25rem;
}

.lesson-skeleton-duration {
    height: 12px;
    width: 32px;
    border-radius: 0.25rem;
    flex-shrink: 0;
}

/* Minimal Navigation Skeleton */
.nav-skeleton {
    padding: 1rem;
}

.nav-skeleton-search {
    height: 36px;
    width: 100%;
    margin-bottom: 1.5rem;
    border-radius: 0.5rem;
}

.nav-skeleton-section {
    margin-bottom: 2rem;
}

.nav-skeleton-section:last-child {
    margin-bottom: 0;
}

.nav-skeleton-heading {
    height: 16px;
    width: 50%;
    margin-bottom: 1rem;
    border-radius: 0.375rem;
}

/* Reduce repetition - only show 2 lessons per module skeleton */
.nav-skeleton-section .lesson-skeleton:nth-child(n+4) {
    display: none;
}

/* Content Area Skeleton - More refined */
.content-skeleton {
    padding: 0;
    margin: 0;
}

.content-skeleton-header {
    margin-bottom: 3.5rem;
}

.content-skeleton-title {
    height: 3rem;
    width: 70%;
    margin-bottom: 1.5rem;
    border-radius: 0.5rem;
}

.content-skeleton-meta {
    margin-bottom: 1rem;
    display: flex;
    gap: 8px;
}

.content-skeleton-tag {
    padding: 6px 8px;
    height: 1.8rem;
    width: 90px;
    border-radius: 6px;
}

.content-skeleton-body {
    margin-bottom: 2rem;
}

.content-skeleton-paragraph {
    height: 2rem;
    margin-bottom: 1.5rem;
    border-radius: 0.5rem;
}

.content-skeleton-paragraph:last-child {
    margin-bottom: 0;
}

/* Paragraph widths are now set dynamically by JavaScript for variety */

.content-skeleton-image {
    border-radius: 0.75rem;
    margin: 2.5rem 0 !important; /* Top and bottom spacing around images */
}

/* Progress Skeleton - Refined */
.progress-skeleton {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.progress-skeleton-bar {
    height: 8px;
    width: 180px;
    border-radius: 4px;
}

.progress-skeleton-text {
    height: 14px;
    width: 70px;
    border-radius: 0.25rem;
}

/* Elegant skeleton fade effects */
.skeleton-container {
    position: relative;
    overflow: hidden;
}

/* Accessibility */
.skeleton {
    position: relative;
}

.skeleton::before {
    content: 'Loading...';
    position: absolute;
    left: -10000px;
    top: auto;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    .skeleton {
        animation: none;
        background: var(--skeleton-base);
    }
}

/* Navigation skeleton specific styles */
.nav-skeleton {
    padding: 0;
}

.nav-module-skeleton {
    margin-bottom: 2.5rem !important; /* Space between module sections */
}

.nav-module-skeleton .module-header {
    display: flex;
    align-items: center;
}

.nav-module-skeleton .module-toggle {
    margin-right: 0.75rem;
    display: flex;
    flex-shrink: 0;
    width: 2.2rem;
    height: 2.2rem;
}

/* Container handles layout, .skeleton child gets shimmer animation and visuals */
.nav-module-skeleton .module-toggle .skeleton {
    width: 2.2rem;
    height: 2.2rem;
    border-radius: 0.4rem;
}

.nav-module-skeleton .module-info {
    flex-grow: 1;
    min-width: 0;
}

.nav-module-skeleton .module-title {
    margin: 0;
    min-height: 2.2rem;
}

.nav-module-skeleton .module-title .skeleton {
    width: 100%;
    border-radius: 0.4rem;
}

.nav-module-skeleton .module-lessons {
    padding-left: 20px;
    display: block !important; /* Show lessons in skeleton */
    overflow: hidden;
    transition: var(--lesson-transition);
    background: var(--lesson-bg);
    border-radius: var(--lesson-radius);
}

.nav-lesson-skeleton {
    padding: 6px 10px;
    border-radius: .4rem;
    position: relative;
}

.nav-lesson-skeleton .lesson-title-row {
    display: flex;
    align-items: center;
    width: 100%;
    min-width: 0;
    margin: 3px 0px;
    gap: 0.5rem;
}

.nav-lesson-skeleton .lesson-progress-indicator .skeleton {
    flex-shrink: 0;
    width: 1.5rem;
    height: 1.5rem;
    display: flex;
    border-radius: 50%;
    align-items: center;
    justify-content: center;
    margin-right: 1rem;
}

.nav-lesson-skeleton .lesson-title {
    flex: 1;
    min-height: 1.8rem;
}

.nav-lesson-skeleton .lesson-title .skeleton {
    border-radius: 0.4rem;
    display: block;
    /* Width is set by JavaScript - don't stretch */
}

/* Make sure skeleton elements inside these containers have proper dimensions */
.nav-module-skeleton .skeleton {
    min-height: inherit;
}

.nav-lesson-skeleton .skeleton {
    min-height: inherit;
}

/* Apply skeleton styles to all skeleton elements */
.module-skeleton-icon, 
.module-skeleton-title, 
.module-skeleton-progress,
.lesson-skeleton-icon, 
.lesson-skeleton-title, 
.lesson-skeleton-duration,
.content-skeleton-title, 
.content-skeleton-tag, 
.content-skeleton-paragraph,
.content-skeleton-image,
.nav-skeleton-search, 
.nav-skeleton-heading,
.progress-skeleton-bar, 
.progress-skeleton-text,
.module-toggle-skeleton,
.module-title-skeleton,
.lesson-progress-skeleton,
.lesson-title-skeleton {
    background: linear-gradient(
        90deg, 
        var(--skeleton-base) 25%, 
        var(--skeleton-highlight) 50%, 
        var(--skeleton-base) 75%
    );
    background-size: 200px 100%;
    animation: shimmer 1.8s ease-in-out infinite;
    border-radius: 0.5rem;
}

/* Ensure proper spacing */
.content-skeleton .skeleton:not(:last-child) {
    margin-bottom: 1rem;
}

.content-skeleton-body > .skeleton:not(:last-child) {
    margin-bottom: 1rem;
}

/* For when loading individual lessons under each module in the lesson view */
.nav-module-lessons-skeleton {
    padding: 0;
    padding-left: 20px; /* Match module-lessons padding */
}

.nav-lesson-skeleton-item {
    padding: 6px 10px; /* Match nav-lesson padding */
    margin-bottom: var(--spacing-xs); /* Match nav-lesson margin */
    border-radius: .35rem; /* Match nav-lesson border-radius */
    background: transparent;
    border: 1px solid transparent;
}

.nav-lesson-skeleton-item:last-child {
    margin-bottom: 0;
}

.nav-lesson-skeleton-item .lesson-title-row {
    display: flex;
    align-items: center;
    width: 100%;
    min-width: 0; /* Match actual lesson-title-row */
}

.nav-lesson-skeleton-bar {
    display: inline-block;
    height: 28px; /* Match line-height: 2 with font-size: var(--text-md) */
    width: 100%;
    margin-left: 0; /* No margin for skeleton since it doesn't have check icon */
    border-radius: 4px;
    background: linear-gradient(
        90deg, 
        var(--skeleton-base) 25%, 
        var(--skeleton-highlight) 50%, 
        var(--skeleton-base) 75%
    );
    background-size: 200px 100%;
    animation: shimmer 1.8s ease-in-out infinite;
    font-size: var(--text-md); /* Match lesson-title font-size */
    line-height: 2; /* Match lesson-title line-height */
}

/* Single Course View Skeleton - Match actual layout */
.single-course-skeleton {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-lg);
    overflow-x: hidden;
    box-sizing: border-box;
}

/* Header Section - Centered like real layout */
.single-course-skeleton-header {
    text-align: center;
    position: relative;
    margin-bottom: 3rem;
}

.single-course-skeleton-title {
    height: 32px; /* Match var(--text-xxl) */
    width: 60%;
    margin: 0 auto var(--spacing-md) auto;
    border-radius: 0.5rem;
}

.single-course-skeleton-meta {
    display: flex; 
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: 1rem;
}

.single-course-skeleton-meta-item {
    height: 16px; /* Match var(--text-base) */
    width: 150px;
    border-radius: 0.25rem;
}

.single-course-skeleton-actions {
    display: flex;
    gap: var(--spacing-xs);
    justify-content: center;
}

.single-course-skeleton-button {
    width: 40px;
    height: 40px;
    border-radius: 0.5rem;
}

/* Modules Section - Match actual spacing */
.single-course-skeleton-modules {
    margin-top: 3rem;
}

.single-course-skeleton-section-title {
    height: 20px; /* Match var(--text-lg) */
    width: 45%;
    margin-bottom: var(--spacing-md);
    border-radius: 0.25rem;
    text-align: left;
}

.single-course-skeleton-modules-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr); /* Fixed 3 columns like real layout */
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

/* Module Cards - Match actual structure */
.single-course-skeleton-module-card {
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    overflow: hidden;
    position: relative;
    box-shadow: 0 1px 0px 2px var(--shadow-border);
    padding: var(--spacing-md);
    min-height: 150px;
    background: var(--background-color);
}

.single-course-skeleton-module-badge {
    background: transparent;
    border: 1px solid var(--shadow-border);
    width: 2.2rem;
    height: 2.2rem;
    border-radius: 10px;
    margin-bottom: 1rem;
    /* No shimmer for badge - matches real transparent style */
    background: var(--skeleton-base) !important;
    animation: none !important;
}

.single-course-skeleton-module-header {
    display: flex;
    flex-direction: column;
    margin-bottom: auto;
}

.single-course-skeleton-module-title {
    height: 20px; /* Match var(--text-lg) */
    width: 85%;
    border-radius: 0.25rem;
    margin-bottom: var(--spacing-sm);
}

.single-course-skeleton-module-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.single-course-skeleton-module-meta-item {
    height: 14px; /* Match var(--text-sm) */
    border-radius: 0.25rem;
}

.single-course-skeleton-module-meta-item:first-child {
    width: 70px; /* lesson count */
}

.single-course-skeleton-module-meta-item:nth-child(2) {
    width: 8px; /* status dot */
    height: 8px;
    border-radius: 50%;
}

.single-course-skeleton-module-meta-item:last-child {
    width: 80px; /* status */
}

.single-course-skeleton-module-actions {
    display: flex;
    flex-direction: column; /* Match actual layout */
    gap: 10px;
    margin-top: var(--spacing-lg);
}

.single-course-skeleton-action-button {
    height: 40px;
    border-radius: 0.5rem;
    width: 100%; /* Full width like real buttons */
}

/* Responsive Design - Match actual breakpoints */
@media (max-width: 768px) {
    .single-course-skeleton {
        max-width: 100%;
        padding: var(--spacing-md);
    }
    
    .single-course-skeleton-modules-list {
        grid-template-columns: 1fr; /* Single column on mobile */
        gap: var(--spacing-md);
    }
    
    .single-course-skeleton-meta {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
}

@media (max-width: 1024px) and (min-width: 769px) {
    .single-course-skeleton-modules-list {
        grid-template-columns: repeat(2, 1fr); /* Two columns on tablet */
    }
}

/* Module View Skeleton - Match actual layout */
.module-view-skeleton {
    max-width: 960px;
    margin: 0 auto;
    padding: var(--spacing-lg) var(--spacing-md);
    overflow-x: hidden;
    background-color: var(--content-bg);
}

/* Header Section - Centered like real layout */
.module-view-skeleton-header {
    text-align: center;
    margin-bottom: var(--spacing-md);
    position: relative;
}

.module-view-skeleton-status {
    display: inline-block;
    height: 20px;
    width: 100px;
    margin-bottom: var(--spacing-sm);
    border-radius: 6px;
}

.module-view-skeleton-title {
    height: 2.5rem; /* Match var(--text-xxl) */
    width: 60%;
    margin: 0 auto var(--spacing-md) auto;
    border-radius: 0.5rem;
}

/* Actions Section - Centered like real layout */
.module-view-skeleton-actions {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.module-view-skeleton-primary-btn {
    height: 47px;
    width: 180px;
    border-radius: 0.5rem;
}

.module-view-skeleton-action-buttons {
    display: flex;
    gap: var(--spacing-xs);
}

.module-view-skeleton-action-btn {
    width: 47px;
    height: 47px;
    border-radius: 0.5rem;
}

/* Lessons Section */
.module-view-skeleton-lessons {
    margin-top: 5rem;
}

.module-view-skeleton-section-title {
    height: 2rem; /* Match var(--text-lg) */
    width: 50%;
    margin-bottom: var(--spacing-md);
    border-radius: 0.5rem;
    text-align: left;
}

.module-view-skeleton-lessons-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

/* Lesson Cards - Match actual structure with grid layout */
.module-view-skeleton-lesson-card {
    position: relative;
    border-radius: 12px;
    padding: var(--spacing-md);
    display: grid;
    grid-template-columns: auto 1fr auto;
    grid-template-areas: "number content actions";
    gap: var(--spacing-sm) var(--spacing-md);
    align-items: center;
    border: solid var(--shadow-border);
    border-width: 1px 1px 1px 3px;
    overflow: hidden;
    background: var(--background-color);
}

.module-view-skeleton-lesson-number {
    grid-area: number;
    width: 38px;
    height: 38px;
    border-radius: 12px;
    flex-shrink: 0;
    align-self: center;
    /* No shimmer for number - use neutral skeleton color instead of primary */
    background: var(--skeleton-base) !important;
    animation: none !important;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.module-view-skeleton-lesson-content {
    grid-area: content;
    min-width: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.module-view-skeleton-lesson-status {
    height: 1.5rem;
    width: 120px;
    border-radius: .35rem;
    margin-bottom: 1rem;
}

.module-view-skeleton-lesson-title {
    height: 1.5rem;
    width: 70%;
    border-radius: 0.35rem;
    margin-bottom: var(--spacing-sm);
}

.module-view-skeleton-lesson-description {
    height: 1.25rem;
    width: 90%;
    border-radius: 0.35rem;
}

.module-view-skeleton-lesson-actions {
    grid-area: actions;
    flex-shrink: 0;
    justify-self: end;
    align-self: center;
    display: flex;
    gap: var(--spacing-xs);
}

.module-view-skeleton-lesson-btn {
    height: 40px;
    width: 80px;
    border-radius: 0.5rem;
}

/* Responsive Design - Match actual breakpoints */
@media (max-width: 768px) {
    .module-view-skeleton {
        padding: var(--spacing-md) var(--spacing-sm);
    }
    
    .module-view-skeleton-lesson-card {
        grid-template-columns: auto 1fr;
        grid-template-areas:
            "number content"
            ". actions";
    }
    
    .module-view-skeleton-lesson-number {
        align-self: center;
    }

    .module-view-skeleton-lesson-actions {
        justify-self: stretch;
        justify-content: center;
    }
    
    .module-view-skeleton-lesson-btn {
        width: 100px;
    }
}

@media (max-width: 480px) {
    .module-view-skeleton-title {
        width: 85%;
    }
    
    .module-view-skeleton-lesson-card {
        grid-template-columns: 1fr;
        grid-template-areas:
            "number"
            "content"
            "actions";
        text-align: center;
    }
    
    .module-view-skeleton-lesson-number {
        justify-self: center;
        margin-bottom: var(--spacing-xs);
    }
    
    .module-view-skeleton-lesson-actions {
        margin-top: var(--spacing-sm);
        justify-content: center;
    }
}

/* Courses View Skeleton - Match actual layout */
.courses-view-skeleton {
    width: 100%;
    height: 100%;
}

.courses-skeleton-container {
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

/* Header Section - Centered like real layout */
.courses-skeleton-header {
    text-align: center;
}

.courses-skeleton-title {
    height: 3.5rem; /* Match clamp(1.75rem, 3vw, 2.5rem) */
    width: 350px;
    margin: 0 auto 1.5rem auto;
    border-radius: 0.5rem;
}

.courses-skeleton-subtitle {
    height: 2rem; /* Match clamp(1rem, 1.5vw, 1.25rem) */
    width: 90vw;
    max-width: 550px;
    margin: 0 auto;
    border-radius: 0.5rem;
}

/* Courses Grid - Match actual layout */
.courses-skeleton-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(275px, 1fr));
    gap: var(--spacing-md);
    margin-top: 3rem;
}

/* Course Cards - Match actual structure */
.courses-skeleton-card {
    background-color: var(--sidebar-background);
    border-radius: var(--border-radius);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
    min-height: 400px;
    border: 1px solid var(--border-color);
    position: relative;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.courses-skeleton-thumbnail {
    width: 100%;
    height: 180px;
    background-color: var(--border-color);
    /* No shimmer for thumbnail - like real placeholder */
    background: var(--border-color) !important;
    animation: none !important;
}

.courses-skeleton-status-badge {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    width: 70px;
    height: 20px;
    border-radius: 0.375rem;
    z-index: 2;
}

.courses-skeleton-body {
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.courses-skeleton-course-title {
    height: 28px; /* Taller */
    width: 85%;
    margin-bottom: var(--spacing-sm);
    border-radius: 0.5rem; /* More rounded */
}

/* Course Meta */
.courses-skeleton-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    font-size: 0.9375rem; /* Match updated meta font size */
}

.courses-skeleton-meta-icon {
    width: 24px;
    height: 24px;
    border-radius: 50%; /* Circular */
    flex-shrink: 0;
}

.courses-skeleton-circular-progress {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    flex-shrink: 0;
}



/* Course Footer */
.courses-skeleton-footer {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-top: auto;
}

.courses-skeleton-actions {
    display: flex;
    gap: var(--spacing-xs);
}

.courses-skeleton-action-btn {
    height: 40px;
    width: 100%;
    border-radius: 0.5rem;
}

/* Responsive Design - Match actual breakpoints */
@media (max-width: 768px) {
    .courses-skeleton-card {
        max-width: none; /* Remove max-width constraint on mobile */
    }
    
    .courses-skeleton-header {
        text-align: left;
    }
    
    .courses-skeleton-title {
        margin-left: 0;
    }
    
    .courses-skeleton-subtitle {
        margin-left: 0;
    }
} 
/* 
=======================================
COMPREHENSIVE TEXT STYLING
=======================================
This file contains styles for all text elements in the course view.
WordPress-specific styles have been moved to wordpress-blocks.css.
*/

/* ======== FONT FAMILIES ======== */
/* Apply Geist to all heading levels */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Geist', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

/* Ensure body and other text defaults to system UI */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    color: var(--text-primary);
}

/* ======== HEADINGS HIERARCHY (with smooth responsive scaling) ======== */
h1 {
    font-size: clamp(1.8rem, 4vw, 2.2rem);
    font-weight: 600;
    letter-spacing: var(--ls-xs);
    margin-top: 0.5rem;
}

h2 {
    font-size: clamp(1.5rem, 3.5vw, 1.8rem);
    font-weight: 600;
    letter-spacing: var(--ls-sm);
}

h3 {
    font-size: clamp(1.15rem, 2.5vw, 1.3rem);
    font-weight: 600;
}

h4 {
    font-size: clamp(1.05rem, 2.25vw, 1.15rem);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 1rem;
}

h5 {
    font-size: clamp(1rem, 2vw, 1.1rem);
    font-weight: 500;
}

h6 {
    font-size: clamp(0.9rem, 1.8vw, 1rem);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
/* 
VIDEO PLAYER STYLES
===================
Styles for video lesson components and states
*/

.lesson-video-container {
    width: 100%;
    max-width: 100%;
    margin: 2rem 0;
    background: var(--bg-color, #000);
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    /* 16:9 Aspect Ratio Container */
    padding-top: 56.25%; /* 9/16 = 0.5625 */
}

/* Loading State */
.video-loading-state {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.video-loading-state .loading-spinner {
    width: 24px;
    height: 24px;
    border: 2px solid var(--input-border-color);
    border-top: 2px solid var(--text-primary-color, #fff);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    flex-shrink: 0;
    margin: 0 auto;
}

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

.video-loading-state p {
    margin: .5rem 0;
    color: var(--text-tertiary-color);
    font-size: var(--text-base) !important;
    font-weight: 400;
    letter-spacing: var(--ls-sm);
}

/* Error State */
.video-error-state {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--bg-color, #000);
    text-align: center;
}

.video-error-state .error-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.7;
}

.video-error-state p {
    margin: 0 0 1.5rem 0;
    color: var(--text-secondary-color);
    font-size: 1rem;
}

.video-error-state .retry-video-btn {
    margin: 0;
}

/* Player Container */
.video-player-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-color, #000);
}

.video-player-container iframe {
    width: 100%;
    height: 100%;
    border: none;
    border-radius: 12px;
    display: block;
}

/* Video Controls Bar */
.video-controls-bar {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    border: 1px solid var(--input-border-color);
    border-radius: 100px;
    padding: .38rem .5rem;
    width: fit-content;
    align-self: center;
    margin: 0 auto;
}

.video-controls-bar .bttn {
    border-radius: 100%;
}

.video-controls-bar svg {
    width: 1.35rem;
    height: 1.35rem;
}

/* Theater Mode Popup Styles */
.theater-mode-popup {
    width: 95vw !important;
    max-width: 95vw !important;
    height: 82vh !important;
    max-height: 82vh !important;
    padding: 0 !important;
    background: var(--bg-color) !important;
    border-radius: 12px !important;
    overflow: hidden;
}

.theater-mode-popup .video-player-container {
    height: 100%;
}

.theater-mode-popup .video-player-container iframe {
    height: 100%;
    border-radius: 12px;
}

/* Close button for theater mode */
.theater-close-btn {
    position: absolute !important;
    top: 1rem !important;
    right: 1rem !important;
    z-index: 10 !important;
    border: .5px solid rgba(255, 255, 255, 0.25) !important;
    background: rgba(0, 0, 0, 0.25) !important;
    backdrop-filter: blur(8px);
}

.theater-close-btn:hover {
    border-color: rgba(255, 255, 255, 0.4) !important;
}

/* Theater mode placeholder */
.theater-mode-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-color);
    color: var(--text-primary-color);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
}

/* Video Component Containers (shared by timeline and stats) */
.video-component-container {
    width: 100%;
}

.component-header {
    margin-bottom: 0.5rem;
}

.component-title {
    font-size: var(--text-base);
    font-weight: 500;
    color: var(--text-primary-color);
    margin-top: 2rem;
    margin-bottom: .5rem;
    letter-spacing: var(--ls-md);
}

.component-instructions {
    text-align: left;
    font-size: var(--text-sm);
    color: var(--text-tertiary-color);
    padding: 0;
}

/* Bookmark Timeline Styles */
.timeline-wrapper {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 2rem 0.5rem;
}

.timeline-start-icon {
    flex-shrink: 0;
    color: var(--text-tertiary-color);
    display: flex;
    align-items: center;
}

.bookmark-timeline {
    flex: 1;
    height: 50px; 
    display: flex;
    align-items: center;
    position: relative;
}

.bookmark-timeline-track {
    width: 100%;
    height: 5px;
    background: var(--contrast-light-color);
    border-radius: 3px;
    position: relative; 
    transition: background 0.3s ease;
}

.timeline-end-timestamp {
    flex-shrink: 0;
    font-size: var(--text-xs);
    color: var(--text-tertiary-color);
    font-weight: 500;
}

/* Video Stats Styles */
.stats-content-wrapper {
    border: dashed var(--input-border-color);
    border-width: 0 0 0 1px;
    padding: 1rem;
    margin: 2rem 0; 
}

.stats-content .stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 125px));
    gap: 1rem;
    padding: 0 0.75rem;
}

.stats-content .stat-item {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.stats-content .stat-label {
    overflow-wrap: break-word;
    white-space: normal;
    color: var(--text-tertiary-color);
    font-size: var(--text-xs);
    letter-spacing: var(--ls-sm);
}

.stats-content .stat-value {
    color: var(--text-primary-color);
    font-size: var(--text-2xl);
    font-weight: 600;
    letter-spacing: var(--ls-md);
}

/* Active state for timeline toggle button */
.timeline-toggle-btn.active {
    background: var(--brand-light);
    color: var(--brand-color);
    border-color: var(--brand-color);
}

/* Active state for stats toggle button */
.stats-toggle-btn.active {
    background: var(--brand-light);
    color: var(--brand-color);
    border-color: var(--brand-color);
}

/* Bookmark dots and interactions that go on the timeline */
.bookmark-dot {
    position: absolute !important; 
    width: 12px; 
    height: 12px;
    background: transparent; /* Make main element transparent */
    border: none; 
    border-radius: 50%;
    top: -4px; 
    transform: translateX(-50%);
    cursor: pointer;
    transition: none; 
}

/* Create the visual dot as a pseudo-element */
.bookmark-dot::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--brand-color);
    border: 1px solid white;
    border-radius: 50%;
    transition: all 0.2s ease;
    box-shadow: 0 0px 20px 2px rgba(0, 85, 255, 0.35);
}

.bookmark-dot:hover::before {
    transform: scale(1.4); /* Only scale the pseudo-element */
    box-shadow: 0 0 0 8px rgba(0, 114, 255, 0.15), 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* Replay segment dots styling */
.replay-segment-dot::before {
    background: #e74c3c; /* Red color */
    box-shadow: 0 0px 20px 2px rgba(231, 76, 60, 0.35);
}

.replay-segment-dot:hover::before {
    transform: scale(1.4);
    box-shadow: 0 0 0 8px rgba(231, 76, 60, 0.15), 0 2px 4px rgba(0, 0, 0, 0.2);
}

.bookmark-dot:hover {
    z-index: 100 !important; /* Bring hovered dot to front */
}

.bookmark-dot:active::before {
    transform: scale(1.2);
}

/* Visual feedback for bookmark button */
.bookmark-btn.success {
    animation: bookmarkSuccess 0.5s ease;
}

@keyframes bookmarkSuccess {
    0% { transform: scale(1); }
    50% { 
        transform: scale(1.2); 
        color: var(--active-green);
        background: rgba(34, 197, 94, 0.1);
    }
    100% { transform: scale(1); }
}

/* Context menu for bookmarks */
.bookmark-context-menu {
    position: fixed;
    background: var(--card-bg-color);
    border: 1px solid var(--input-border-color);
    border-radius: 8px;
    padding: 0.25rem;
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    min-width: 160px;
    animation: menuSlideIn 0.15s ease;
}

@keyframes menuSlideIn {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.bookmark-context-menu .context-menu-item {
    width: 100%;
    text-align: left;
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
    font-size: var(--text-sm);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.15s ease;
    color: var(--text-secondary-color);
}

.bookmark-context-menu .context-menu-item:hover {
    background: var(--hover-100);
    color: var(--text-primary-color);
}

.bookmark-context-menu .context-menu-item i {
    width: 14px;
    height: 14px;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .component-instructions {
        font-size: calc(var(--text-xs) * 0.9);
    }
    
    .timeline-wrapper {
        padding: 0 0.25rem;
    }
}


/* frontend/assets/css/welcome-screen.css */

.course-welcome {
    padding: 30px 40px;
    max-width: 900px;
    margin: 20px auto;
    background-color: var(--color-background-secondary);
    border-radius: var(--border-radius-large);
    box-shadow: var(--shadow-medium);
    color: var(--color-text-primary);
}

.course-welcome .welcome-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--color-border-subtle);
}

.course-welcome .welcome-header h1 {
    font-size: var(--font-size-xxxl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-headings);
    margin-bottom: 15px;
    line-height: 1.2;
}

.course-welcome .course-stats {
    display: flex;
    gap: 30px;
    justify-content: center;
    flex-wrap: wrap;
}

.course-welcome .stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 80px;
}

.course-welcome .stat-number {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
}

.course-welcome .stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.course-welcome .welcome-content {
    margin-bottom: 30px;
    font-size: var(--font-size-md);
    line-height: 1.7;
}

.course-welcome .welcome-content p {
    margin-bottom: 1em;
}

.course-welcome .welcome-content h2,
.course-welcome .welcome-content h3 {
    margin-top: 1.5em;
    margin-bottom: 0.5em;
    color: var(--color-text-headings);
}

.course-welcome .welcome-actions {
    display: flex;
    gap: 15px;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
}

.course-welcome .welcome-actions .btn {
    min-width: 200px; /* Ensure buttons have a decent width */
    padding: 12px 24px;
    font-size: var(--font-size-md);
} 
/* 
=======================================
WORDPRESS BLOCKS STYLING
=======================================
This file contains styles specifically for WordPress block editor content.
*/



/* ======== PARAGRAPH & TEXT BLOCKS WITHIN LESSON CONTENT (Where we will display the main content from WP) ======== */
.lesson-content p {
    line-height: 1.8rem;
    margin: 1rem 0;
}

.lesson-content h1{ 
    margin-top: 1rem;
    margin-bottom: 2rem;
}

.lesson-content h2{ 
    margin-bottom: 1rem;
    margin-top: 3rem;
}

.lesson-content h3{ 
    margin-bottom: .5rem;
    margin-top: 2rem;
    color: var(--text-secondary);
}

.lesson-content strong {
    font-weight: 600;
}

/* Links styling with elegant hover effect */
.lesson-content a {
    color: var(--primary-color);
    background-image: linear-gradient(currentColor, currentColor);
    background-position: 0% 100%;
    background-repeat: no-repeat;
    background-size: 0% 1px;
    line-height: normal;
    padding-bottom: 4px;          
    text-decoration: none;
    transition: all .25s ease;
}

.lesson-content a:hover {
    background-size: 100% 1px;
}

/* Your existing styles using the variable */
.lesson-content span[style*="text-decoration: underline"] {
    text-decoration: none !important;
    position: relative;
    display: inline;
    background: transparent;
    z-index: 10;
    isolation: isolate;
    font-weight: 500;
    margin: 0 0.35rem;
}

.lesson-content span[style*="text-decoration: underline"]::after {
    content: '';
    position: absolute;
    left: -0.15rem;
    right: -0.15rem;
    bottom: -0.15rem;
    height: 1.4rem;
    background: radial-gradient(
        ellipse 69% 100% at left,
        rgba(var(--highlight-color), .5) 0%,
        rgba(var(--highlight-color), 0.4) 50%,
        rgba(var(--highlight-color), 0.3) 80%,
        rgba(var(--highlight-color), 0.2) 100%
    );
    z-index: -1;
    transform: skew(8deg);
    border-radius: 6px;
}

/* ======== LISTS ======== */
.lesson-content ul,
.lesson-content ol {
    padding-left: 1.5em;
    margin-bottom: 1.5em;
}

.lesson-content ul li:not(:last-child),
.lesson-content ol li:not(:last-child) {
    padding-bottom: .15em;
}

.lesson-content ul li,
.lesson-content ol li {
    padding-top: .15em;
    margin-left: 0; 
    margin-bottom: .55em;
}

/* Nested lists */
.lesson-content ul li li,
.lesson-content ol li li,
.lesson-content ul ol li,
.lesson-content ol ul li {
    padding: .5em;
}

/* ======== FIGURES AND CAPTIONS ======== */
/* Figures and Images */
.lesson-content figure {
    margin: 0; /* So tables span the full width */
}

.lesson-content figcaption {
    color: var(--text-muted-color);
    font-size: var(--text-base);
    line-height: 1.4em;
    text-align: center;
}

/* ======== WORDPRESS BLOCK ELEMENTS ======== */
/* Details/Summary (Accordion) */
.wp-block-details {
    margin-bottom: 1.5em;
    margin-left: .5em;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 0.75em;
}

.wp-block-details summary {
    color: var(--primary-color);
    margin-bottom: .5em;
    text-decoration: underline;
    cursor: pointer;
    font-weight: 500;
}

.wp-block-details>:last-child {
    margin-left: 1em;
}

/* Images */
.wp-block-image img {
    border-radius: 15px;
    display: block;
    margin: 30px auto;
    max-width: 100%;
    height: auto;
}

/* Embedded Content */
#lesson-content .wp-block-embed {
    height: auto;
    margin: 40px auto;
    width: 100%;
}

.wp-block-embed__wrapper {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    height: 0;
    overflow: hidden;
    border-radius: 10px;
    box-shadow: 0 0px 5px 1px rgba(0, 0, 0, 0.1);
    margin: 0 1rem; 
}

.wp-block-embed__wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
    border-radius: 12px;
}

/* Math Formatting */
.katex {
    font-size: 1.18em !important;
    font-weight: 500 !important;
}


/* ======== CALLOUT BOXES ======== */
.problem, .formula, .concept, .notice {
    border-radius: 10px !important;
    margin-top: 2em !important;
    margin-bottom: 2em !important;
    padding: 1.5rem;
    margin: 0 1rem;
    line-height: 1.6;
    font-weight: 400 !important;
}

.problem {
    background-color: var(--wp-problem-bg) !important;
    color: var(--wp-problem-text) !important;
    box-shadow: 0 0 25px 0px var(--wp-problem-border);
}

.formula {
    background-color: var(--wp-formula-bg) !important;
    color: var(--wp-formula-text) !important;
    text-align: center;
    box-shadow: 0 0 25px 0px var(--wp-formula-border);
}

.concept {
    background-color: var(--wp-concept-bg) !important;
    color: var(--wp-concept-text) !important;
    border: 1px solid var(--wp-concept-border);
    box-shadow: 0 0 20px -1px var(--wp-concept-border);
}

.notice {
    background-color: var(--wp-notice-bg) !important;
    color: var(--wp-notice-text) !important;
    text-align: center;
    box-shadow: 0 0 25px 0px var(--wp-notice-border);
}

.problem li, .formula li, .concept li, 
.problem ul, .formula ul, .concept ul {
    list-style-position: inside;
    margin-bottom: 10px !important;
}

.problem li:last-child, .formula li:last-child, .concept li:last-child,
.problem ul:last-child, .formula ul:last-child, .concept ul:last-child {
    margin-bottom: 0 !important;
}

/* ======== RESPONSIVE ADJUSTMENTS ======== */
@media (max-width: 768px) {
    .problem, .formula, .concept, .notice {
        padding: 1rem;
        margin: 1.5em 0;
    }
}