/* Tutorials Page Specific Styles */

/* Hero Section */
.tutorials-hero {
    min-height: 60vh;
    display: flex;
    align-items: center;
    background: 
        radial-gradient(circle at 20% 50%, rgba(0, 212, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(0, 153, 204, 0.1) 0%, transparent 50%),
        var(--bg-primary);
    padding-top: 100px;
}

.tutorials-hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.tutorials-hero-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

.tutorials-hero-description {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-xl);
}

/* Tutorials Content */
.tutorials-content {
    padding: var(--spacing-2xl) 0;
    background: var(--bg-secondary);
}

.tutorials-content .section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.tutorials-content .section-header h2 {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.tutorials-content .section-header p {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Tutorials Grid */
.tutorials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: var(--spacing-xl);
    max-width: 1200px;
    margin: 0 auto;
}

/* Tutorial Card */
.tutorial-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
    position: relative;
}

.tutorial-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.tutorial-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--accent-gradient);
    transform: translateX(-100%);
    transition: transform 0.3s ease;
}

.tutorial-card:hover::before {
    transform: translateX(0);
}

/* Video Thumbnail */
.tutorial-video {
    position: relative;
    width: 100%;
    height: 240px;
    overflow: hidden;
    background: var(--bg-tertiary);
}

.video-thumbnail {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.video-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.tutorial-card:hover .video-thumbnail img {
    transform: scale(1.05);
}

.play-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 2;
    transition: var(--transition);
    opacity: 0.9;
}

.tutorial-card:hover .play-button {
    transform: translate(-50%, -50%) scale(1.1);
    opacity: 1;
}

.play-button svg {
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.3));
}

.video-duration {
    position: absolute;
    bottom: 12px;
    right: 12px;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    font-weight: 500;
    z-index: 2;
}

/* Tutorial Info */
.tutorial-info {
    padding: var(--spacing-lg);
}

.tutorial-info h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
}

.tutorial-info p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

/* Tutorial Button */
.tutorial-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: var(--accent-gradient);
    color: white;
    text-decoration: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: var(--font-size-sm);
    transition: var(--transition);
}

.tutorial-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.btn-icon {
    font-size: 0.9rem;
}

/* Help Section */
.tutorials-help {
    padding: var(--spacing-2xl) 0;
    background: var(--bg-primary);
    text-align: center;
}

.help-content {
    max-width: 700px;
    margin: 0 auto;
}

.tutorials-help h2 {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.tutorials-help p {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-xl);
}

.help-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* Responsive Design */
@media (max-width: 768px) {
    .tutorials-hero {
        min-height: 50vh;
        padding-top: 80px;
    }
    
    .tutorials-hero-title {
        font-size: var(--font-size-3xl);
    }
    
    .tutorials-hero-description {
        font-size: var(--font-size-base);
    }
    
    .tutorials-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
        padding: 0 var(--spacing-md);
    }
    
    .tutorial-card {
        max-width: 100%;
    }
    
    .tutorial-video {
        height: 200px;
    }
    
    .help-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .help-actions .btn-primary,
    .help-actions .btn-secondary {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
    
    .tutorials-content .section-header h2 {
        font-size: var(--font-size-2xl);
    }
}

@media (max-width: 480px) {
    .tutorials-hero-title {
        font-size: var(--font-size-2xl);
    }
    
    .tutorials-content {
        padding: var(--spacing-lg) 0;
    }
    
    .tutorials-help {
        padding: var(--spacing-lg) 0;
    }
    
    .tutorial-info {
        padding: var(--spacing-md);
    }
    
    .tutorials-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
        padding: 0 var(--spacing-sm);
    }
}

/* Dark Theme Video Player Overrides */
.tutorial-card iframe {
    border: none;
    border-radius: 0;
    background: var(--bg-tertiary);
}

/* Loading State for Images */
.video-thumbnail img[loading="lazy"] {
    opacity: 0;
    transition: opacity 0.3s ease;
}

.video-thumbnail img[loading="lazy"].loaded {
    opacity: 1;
}

/* Focus States for Accessibility */
.tutorial-btn:focus,
.video-thumbnail:focus {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
}

.play-button:focus {
    outline: 3px solid rgba(255, 255, 255, 0.6);
    outline-offset: 4px;
    border-radius: 50%;
}