/* Video Tutorials Styles */
:root {
    --primary-color: #1a73e8;
    --secondary-color: #4285f4;
    --text-color: #202124;
    --text-secondary: #5f6368;
    --background-color: #ffffff;
    --background-secondary: #f8f9fa;
    --border-color: #dadce0;
    --shadow-small: 0 1px 2px 0 rgba(60, 64, 67, 0.3), 0 1px 3px 1px rgba(60, 64, 67, 0.15);
    --shadow-medium: 0 1px 3px 0 rgba(60, 64, 67, 0.3), 0 4px 8px 3px rgba(60, 64, 67, 0.15);
}

/* Tutorials Header */
.tutorials-header {
    background: var(--background-color);
    padding: 40px 0;
    border-bottom: 1px solid var(--border-color);
    text-align: center;
}

.tutorials-header h1 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin: 0 0 10px 0;
    font-weight: 500;
}

.tutorials-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* Tutorials Categories */
.tutorials-categories {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    margin: 30px 0;
    gap: 10px;
}

.category-btn {
    background-color: var(--background-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 8px 16px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.category-btn:hover {
    background-color: #e8f0fe;
}

.category-btn.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* Tutorials Search */
.tutorials-search {
    max-width: 600px;
    margin: 30px auto;
    position: relative;
    display: flex;
}

.tutorials-search input {
    flex: 1;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: 4px 0 0 4px;
    font-size: 1rem;
    outline: none;
}

.tutorials-search input:focus {
    border-color: var(--primary-color);
}

.tutorials-search .search-button {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 0 15px;
    cursor: pointer;
    font-size: 1rem;
    border-radius: 0;
}

#clearTutorialsSearchBtn {
    background-color: var(--background-secondary);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    border-left: none;
    padding: 0 15px;
    cursor: pointer;
    font-size: 0.9rem;
    border-radius: 0 4px 4px 0;
}

/* Tutorials Grid */
.tutorials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 25px;
    margin-top: 40px;
}

.tutorial-card {
    background-color: var(--background-color);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-small);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.tutorial-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.tutorial-thumbnail {
    position: relative;
    height: 180px;
    overflow: hidden;
}

.tutorial-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.tutorial-duration {
    position: absolute;
    bottom: 10px;
    right: 10px;
    background-color: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
}

.tutorial-info {
    padding: 15px;
}

.tutorial-info h3 {
    margin: 0 0 10px 0;
    color: var(--text-color);
    font-size: 1.2rem;
}

.tutorial-info p {
    color: var(--text-secondary);
    margin: 0 0 15px 0;
    font-size: 0.9rem;
    line-height: 1.5;
}

.tutorial-link {
    display: inline-block;
    background-color: var(--primary-color);
    color: white;
    padding: 8px 15px;
    border-radius: 4px;
    text-decoration: none;
    font-size: 0.9rem;
    transition: background-color 0.3s ease;
}

.tutorial-link:hover {
    background-color: var(--secondary-color);
}

/* Video Modal */
.video-modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    overflow: auto;
}

.modal-content {
    background-color: var(--background-color);
    margin: 5% auto;
    padding: 20px;
    width: 80%;
    max-width: 900px;
    border-radius: 8px;
    position: relative;
}

.close-modal {
    position: absolute;
    top: 10px;
    right: 20px;
    font-size: 28px;
    font-weight: bold;
    color: var(--text-secondary);
    cursor: pointer;
}

.video-container {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    height: 0;
    overflow: hidden;
    margin-top: 20px;
}

.video-container video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #000;
}

/* Language Switcher */
.language-switcher {
    display: flex;
    align-items: center;
    margin-left: 20px;
}

.lang-switch {
    display: flex;
    align-items: center;
    margin-left: 10px;
    padding: 5px 10px;
    text-decoration: none;
    color: var(--text-color);
    border-radius: 4px;
    transition: background-color 0.3s ease;
}

.lang-switch:hover {
    background-color: var(--background-secondary);
}

/* Media Queries */
@media (max-width: 768px) {
    .tutorials-header {
        padding: 30px 20px;
    }
    
    .tutorials-grid {
        grid-template-columns: 1fr;
    }
    
    .modal-content {
        width: 95%;
        margin: 10% auto;
    }
    
    .tutorials-categories {
        flex-direction: column;
        align-items: center;
    }
    
    .category-btn {
        width: 100%;
        max-width: 300px;
    }
    
    .tutorials-search {
        flex-direction: column;
    }
    
    .tutorials-search input,
    .tutorials-search .search-button,
    #clearTutorialsSearchBtn {
        border-radius: 4px;
        margin-bottom: 10px;
        width: 100%;
    }
}