/* Tutorials Page Styles */

.page-header {
    text-align: center;
    margin-bottom: 4rem;
    padding: 2rem 0;
}

.page-header h1 {
    font-size: 3rem;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 1rem;
}

.page-header p {
    font-size: 1.2rem;
    color: #6b7280;
    max-width: 600px;
    margin: 0 auto;
}

/* Videos Grid */
.videos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.video-item {
    background: white;
    border-radius: 16px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transition: all 0.3s ease;
    cursor: pointer;
}

.video-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

.video-thumbnail {
    position: relative;
    width: 100%;
    height: 200px;
    overflow: hidden;
}

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

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

.play-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.video-item:hover .play-overlay {
    opacity: 1;
}

.play-button {
    transform: scale(0.8);
    transition: transform 0.3s ease;
}

.video-item:hover .play-button {
    transform: scale(1);
}

.video-info {
    padding: 1.5rem;
}

.video-info h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.video-info p {
    color: #6b7280;
    font-size: 0.95rem;
    line-height: 1.5;
    margin-bottom: 1rem;
}

.video-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.duration {
    background: #f3f4f6;
    color: #374151;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.875rem;
    font-weight: 500;
}

.difficulty {
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.875rem;
    font-weight: 500;
}

.difficulty {
    background: #dbeafe;
    color: #1d4ed8;
}

.video-item[data-video="video2"] .difficulty,
.video-item[data-video="video4"] .difficulty {
    background: #fef3c7;
    color: #d97706;
}

.video-item[data-video="video4"] .difficulty {
    background: #fce7f3;
    color: #be185d;
}

/* Info Section */
.info-section {
    margin-top: 4rem;
    padding: 3rem 0;
    background: #f9fafb;
    border-radius: 20px;
}

.info-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    padding: 0 2rem;
}

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

.info-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 1rem;
}

.info-card p {
    color: #6b7280;
    line-height: 1.6;
    font-size: 1rem;
}

/* Notification */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    background: #10b981;
    color: white;
    padding: 1rem 1.5rem;
    border-radius: 12px;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    transform: translateX(400px);
    transition: transform 0.3s ease;
    z-index: 1000;
}

.notification.show {
    transform: translateX(0);
}

/* Responsive Design */
@media (max-width: 768px) {
    .page-header h1 {
        font-size: 2.5rem;
    }
    
    .page-header p {
        font-size: 1.1rem;
        padding: 0 1rem;
    }
    
    .videos-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        padding: 0 1rem;
    }
    
    .video-item {
        margin: 0;
    }
    
    .video-thumbnail {
        height: 180px;
    }
    
    .info-cards {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        padding: 0 1rem;
    }
    
    .info-section {
        margin: 2rem 1rem;
        padding: 2rem 0;
    }
}

@media (max-width: 480px) {
    .page-header h1 {
        font-size: 2rem;
    }
    
    .video-info {
        padding: 1rem;
    }
    
    .video-info h3 {
        font-size: 1.1rem;
    }
    
    .video-meta {
        flex-direction: column;
        gap: 0.5rem;
        align-items: flex-start;
    }
}