/* Component-Specific Styles */

/* Share Buttons */
.share-buttons-container {
    display: flex;
    gap: 0.4rem;
    flex-wrap: wrap;
    margin: var(--spacing-sm) 0;
    align-items: center;
}

.share-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.25rem 0.6rem;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.85rem;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
}

.share-btn:hover {
    background-color: var(--bg-tertiary);
    text-decoration: none;
    transform: translateY(-1px);
}

.share-btn.facebook { color: #1877f2; }
.share-btn.twitter { color: #1da1f2; }
.share-btn.linkedin { color: #0077b5; }
.share-btn.wechat { color: #07c160; }
.share-btn.line { color: #00c300; }
.share-btn.email { color: var(--text-secondary); }

/* Text-to-Speech Controls */
.tts-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background-color: var(--bg-secondary);
    border-radius: 4px;
}

.tts-toggle {
    font-family: var(--font-sans);
    padding: var(--spacing-xs) var(--spacing-sm);
    background-color: var(--accent-color);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
}

.tts-toggle:hover {
    background-color: var(--accent-hover);
}

.tts-controls label {
    font-family: var(--font-sans);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

#tts-speed {
    width: 100px;
}

.tts-speed-value {
    font-family: var(--font-sans);
    font-size: 0.9rem;
    color: var(--text-secondary);
    min-width: 40px;
}

/* PDF Viewer */
.pdf-viewer-container {
    margin: var(--spacing-lg) 0;
}


.pdf-controls {
    margin-bottom: var(--spacing-md);
}

.pdf-controls h1 {
    margin-bottom: var(--spacing-md);
}

.pdf-actions {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    align-items: center;
}

.pdf-viewer-wrapper {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    position: relative;
}

.pdf-viewer {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: auto;
    background-color: var(--bg-tertiary);
    min-height: 600px;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: var(--spacing-md);
    max-width: 100%;
    width: 100%;
    flex: 1;
}

.pdf-nav-arrow {
    width: 40px;
    min-width: 40px;
    height: 60px;
    background-color: rgba(44, 62, 80, 0.85);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    padding: 0;
    flex-shrink: 0;
    z-index: 100;
    position: sticky;
    top: 50%;
    transform: translateY(-50%);
    align-self: center;
}

.pdf-nav-arrow:hover {
    background-color: rgba(44, 62, 80, 0.95);
    transform: translateY(-50%) scale(1.05);
}

.pdf-nav-arrow:active {
    transform: translateY(-50%) scale(0.95);
}

.pdf-nav-arrow:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: translateY(-50%);
}

.pdf-nav-arrow svg {
    width: 24px;
    height: 24px;
    fill: currentColor;
}

.pdf-nav-arrow-left {
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
}

.pdf-nav-arrow-right {
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
}

/* Responsive adjustments for PDF arrows */
@media (max-width: 768px) {
    .pdf-nav-arrow {
        width: 32px;
        min-width: 32px;
        height: 50px;
    }
    
    .pdf-nav-arrow svg {
        width: 20px;
        height: 20px;
    }
    
    .pdf-viewer-wrapper {
        gap: 0.25rem;
    }
}

#pdf-canvas {
    max-width: 100%;
    width: auto;
    height: auto;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    display: block;
    margin: 0 auto;
}

.pdf-navigation {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
}

.pdf-navigation-top {
    margin-bottom: var(--spacing-md);
}

.pdf-navigation-bottom {
    margin-top: var(--spacing-md);
}

.page-info {
    font-family: var(--font-sans);
    color: var(--text-secondary);
}

.btn-nav {
    padding: var(--spacing-xs) var(--spacing-md);
}

/* Audio Player */
.audio-page {
    max-width: 800px;
    margin: 0 auto;
}

.audio-player-container {
    margin: var(--spacing-xl) 0;
}

.audio-player {
    background-color: var(--bg-secondary);
    border-radius: 8px;
    padding: var(--spacing-md);
}

.audio-player audio {
    width: 100%;
    margin-bottom: var(--spacing-md);
}

.audio-controls-custom {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.audio-progress-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

#progress-bar {
    width: 100%;
    height: 8px;
    cursor: pointer;
}

.time-display {
    display: flex;
    justify-content: space-between;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.volume-control {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

#volume-control {
    width: 150px;
}

#volume-display {
    font-family: var(--font-sans);
    font-size: 0.9rem;
    color: var(--text-secondary);
    min-width: 45px;
}

.btn-audio {
    align-self: flex-start;
}

.download-section {
    margin-top: var(--spacing-xl);
    text-align: center;
}

/* Mind Map */
.mindmap-container {
    max-width: 1400px;
    margin: 0 auto;
}

.mindmap-controls {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.btn-control {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 1.2rem;
    min-width: 40px;
}

.zoom-level {
    font-family: var(--font-sans);
    color: var(--text-secondary);
    margin-left: var(--spacing-md);
}

.mindmap-layout {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
}

.mindmap-main {
    flex: 1;
    min-width: 0;
}

.keyboard-shortcuts {
    background-color: var(--bg-secondary);
    padding: var(--spacing-md);
    border-radius: 8px;
    flex-shrink: 0;
    width: 250px;
}

.keyboard-shortcuts h3 {
    margin-top: 0;
    font-size: 1rem;
}

.keyboard-shortcuts ul {
    list-style: none;
    padding-left: 0;
    margin: 0;
}

.keyboard-shortcuts li {
    margin-bottom: var(--spacing-xs);
    font-family: var(--font-sans);
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    .mindmap-layout {
        flex-direction: column;
    }
    
    .keyboard-shortcuts {
        width: 100%;
        margin-top: var(--spacing-md);
    }
}

kbd {
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 3px;
    padding: 2px 6px;
    font-family: monospace;
    font-size: 0.85em;
    box-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

.breadcrumb-nav {
    background-color: var(--bg-secondary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 4px;
    margin-bottom: var(--spacing-md);
    font-family: var(--font-sans);
    font-size: 0.9rem;
}

.breadcrumb-nav span {
    color: var(--text-secondary);
}

.breadcrumb-nav span:not(:last-child)::after {
    content: " > ";
    margin: 0 var(--spacing-xs);
}

.mindmap-viewer {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    background-color: #000000;
    position: relative;
    min-height: 600px;
    height: 600px;
    cursor: grab;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mindmap-viewer:active {
    cursor: grabbing;
}

#mindmap-image {
    display: none; /* Hidden, used only for loading into canvas */
}

#mindmap-canvas {
    display: block;
    width: 100%;
    height: 600px;
    min-height: 600px;
}

/* Flashcards */
.flashcards-container {
    max-width: 800px;
    margin: 0 auto;
}

.flashcard-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.progress-indicator {
    font-family: var(--font-sans);
    color: var(--text-secondary);
}

.flashcard-wrapper {
    perspective: 1000px;
    margin: var(--spacing-xl) 0;
    min-height: 400px;
}

.flashcard {
    width: 100%;
    height: 400px;
    position: relative;
}

.flashcard-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.6s;
    transform-style: preserve-3d;
}

.flashcard.flipped .flashcard-inner {
    transform: rotateY(180deg);
}

.flashcard-front,
.flashcard-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--bg-primary);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
}

.flashcard-back {
    transform: rotateY(180deg);
}

.card-content {
    text-align: center;
    width: 100%;
}

.card-label {
    font-family: var(--font-sans);
    font-size: 0.9rem;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-md);
}

.card-text {
    font-size: 1.25rem;
    line-height: 1.6;
    color: var(--text-primary);
}

.flashcard-navigation {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.btn-flip {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 1.1rem;
}

/* Quiz */
.quiz-container {
    max-width: 900px;
    margin: 0 auto;
}

.quiz-progress {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    font-family: var(--font-sans);
    color: var(--text-secondary);
}

.quiz-content {
    margin-bottom: var(--spacing-xl);
}

.quiz-question {
    background-color: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: 8px;
    margin-bottom: var(--spacing-lg);
}

.quiz-question h3 {
    margin-top: 0;
    color: var(--primary-color);
}

.quiz-options {
    list-style: none;
    padding-left: 0;
    margin: var(--spacing-md) 0;
}

.quiz-options li {
    margin-bottom: var(--spacing-sm);
}

.quiz-option {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    color: var(--text-primary);
}

.quiz-option:hover {
    background-color: var(--bg-tertiary);
    border-color: var(--accent-color);
}

.quiz-answer {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background-color: var(--bg-primary);
    border-left: 4px solid var(--accent-color);
    border-radius: 4px;
    display: none;
}

.quiz-answer.revealed {
    display: block;
}

.reveal-answer-btn {
    margin-top: var(--spacing-sm);
    background-color: var(--success-color);
    border-color: var(--success-color);
}

.reveal-answer-btn:hover {
    background-color: #229954;
    border-color: #229954;
}

.quiz-results {
    text-align: center;
    padding: var(--spacing-xl);
    background-color: var(--bg-secondary);
    border-radius: 8px;
}

/* Videos */
.videos-page {
    max-width: 1200px;
    margin: 0 auto;
}

.videos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.video-card {
    background-color: var(--bg-secondary);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.video-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}

.video-embed {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    height: 0;
    overflow: hidden;
}

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

.video-card h3 {
    padding: var(--spacing-md);
    margin: 0;
    font-size: 1.25rem;
}

.video-card p {
    padding: 0 var(--spacing-md) var(--spacing-md);
    margin: 0;
    color: var(--text-secondary);
}

/* Infographic */
.infographic-container {
    max-width: 1200px;
    margin: 0 auto;
}

.infographic-viewer {
    text-align: center;
    margin: var(--spacing-xl) 0;
}

.infographic-image {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    margin-bottom: var(--spacing-md);
}

/* Legal Pages */
.legal-page {
    max-width: 900px;
    margin: 0 auto;
}

.legal-page section {
    margin-bottom: var(--spacing-xl);
}

.legal-page h2 {
    color: var(--primary-color);
    border-bottom: 2px solid var(--border-color);
    padding-bottom: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.legal-page h3 {
    color: var(--secondary-color);
    margin-top: var(--spacing-md);
}

.legal-page ul {
    margin-top: var(--spacing-sm);
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .flashcard-wrapper {
        min-height: 300px;
    }
    
    .flashcard {
        height: 300px;
    }
    
    .card-text {
        font-size: 1.1rem;
    }
    
    .videos-grid {
        grid-template-columns: 1fr;
    }
    
    .mindmap-controls {
        flex-direction: column;
        align-items: flex-start;
    }
}