/* Global Styles */
:root {
    --primary-color: #4285f4;
    --secondary-color: #34a853;
    --accent-color: #ea4335;
    --dark-color: #202124;
    --light-color: #f8f9fa;
    --gray-color: #606060;
    --light-gray: #e0e0e0;
    --font-main: 'Roboto', Arial, sans-serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-main);
    color: var(--dark-color);
    line-height: 1.6;
    background-color: #fff;
}

a {
    text-decoration: none;
    color: var(--primary-color);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* Header Styles */
.header {
    background-color: #fff;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo a {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
}

.main-nav ul {
    display: flex;
    list-style: none;
}

.main-nav ul li {
    margin-left: 20px;
}

.main-nav ul li a {
    color: var(--dark-color);
    font-weight: 500;
    transition: color 0.3s;
}

.main-nav ul li a:hover {
    color: var(--primary-color);
}

.search-bar {
    display: flex;
    align-items: center;
}

.search-bar input {
    padding: 8px 15px;
    border: 1px solid var(--light-gray);
    border-radius: 20px;
    outline: none;
    width: 200px;
}

.search-bar button {
    background: none;
    border: none;
    margin-left: -35px;
    color: var(--gray-color);
    cursor: pointer;
}

/* Main Content Styles */
.main-content {
    padding: 30px 0;
}

.section-title {
    margin-bottom: 20px;
    font-size: 24px;
    color: var(--dark-color);
}

/* Video Grid Styles */
.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.video-card {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
}

.video-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.video-thumbnail {
    position: relative;
    padding-top: 56.25%; /* 16:9 aspect ratio */
    overflow: hidden;
}

.video-thumbnail img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-duration {
    position: absolute;
    bottom: 10px;
    right: 10px;
    background: rgba(0, 0, 0, 0.7);
    color: #fff;
    padding: 3px 6px;
    border-radius: 4px;
    font-size: 12px;
}

.video-info {
    padding: 15px;
}

.video-info h2 {
    font-size: 16px;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.video-info p {
    font-size: 14px;
    color: var(--gray-color);
    margin-bottom: 10px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.video-meta {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: var(--gray-color);
}

.video-meta span {
    display: flex;
    align-items: center;
}

.video-meta i {
    margin-right: 5px;
    font-size: 10px;
}

/* Categories Styles */
.category-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 30px;
}

.category-tag {
    background: var(--light-gray);
    color: var(--dark-color);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 14px;
    transition: background 0.3s;
}

.category-tag:hover {
    background: #d0d0d0;
}

/* Video Player Page Styles */
.video-player-section {
    display: flex;
    gap: 30px;
}

.video-player-container {
    flex: 2;
}

.video-sidebar {
    flex: 1;
}

.video-player {
    width: 100%;
    background: #000;
    border-radius: 8px;
    margin-bottom: 20px;
}

.video-meta {
    margin-bottom: 20px;
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    align-items: center;
}

.video-actions {
    display: flex;
    gap: 10px;
    margin-left: auto;
}

.video-actions button {
    background: var(--light-gray);
    border: none;
    padding: 8px 15px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    gap: 5px;
    cursor: pointer;
    transition: background 0.3s;
}

.video-actions button:hover {
    background: #d0d0d0;
}

.video-description {
    background: var(--light-gray);
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 20px;
    white-space: pre-line;
}

.video-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 30px;
}

.video-tag {
    background: #e0f0ff;
    color: var(--primary-color);
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 14px;
}

/* Sidebar Video Styles */
.sidebar-video {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
}

.sidebar-video img {
    width: 120px;
    height: 70px;
    object-fit: cover;
    border-radius: 4px;
}

.sidebar-video-info h4 {
    font-size: 14px;
    margin-bottom: 5px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.sidebar-video-info p {
    font-size: 12px;
    color: var(--gray-color);
    margin-bottom: 5px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.sidebar-video-info .views {
    font-size: 12px;
    color: var(--gray-color);
}

/* Comments Styles */
.video-comments {
    margin-top: 30px;
}

.comment-form {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
}

.comment-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
}

.comment-form form {
    flex: 1;
    display: flex;
    gap: 10px;
}

.comment-form input {
    flex: 1;
    padding: 10px;
    border: none;
    border-bottom: 1px solid var(--light-gray);
    outline: none;
}

.comment-form button {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 0 15px;
    border-radius: 4px;
    cursor: pointer;
}

.comment-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.comment {
    display: flex;
    gap: 15px;
}

.comment-content {
    flex: 1;
}

.comment-text {
    margin-bottom: 8px;
}

.comment-meta {
    display: flex;
    gap: 15px;
    font-size: 12px;
    color: var(--gray-color);
}

.comment-like, .comment-reply {
    background: none;
    border: none;
    color: var(--gray-color);
    cursor: pointer;
}

/* Footer Styles */
.footer {
    background: var(--dark-color);
    color: white;
    padding: 40px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 30px;
}

.footer-section h3 {
    margin-bottom: 15px;
    font-size: 18px;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section ul li a {
    color: #b0b0b0;
    transition: color 0.3s;
}

.footer-section ul li a:hover {
    color: white;
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    color: white;
    font-size: 20px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 20px;
    border-top: 1px solid #444;
    font-size: 14px;
}

.footer-links {
    display: flex;
    gap: 15px;
}

.footer-links a {
    color: #b0b0b0;
}


/* About Page Styles */
.page-header {
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--light-gray);
}

.breadcrumb {
    font-size: 14px;
    color: var(--gray-color);
}

.breadcrumb a {
    color: var(--gray-color);
}

.about-content {
    display: flex;
    gap: 40px;
    margin-bottom: 50px;
}

.about-text {
    flex: 2;
}

.about-image {
    flex: 1;
}

.about-image img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin: 30px 0;
}

.stat-item {
    background: var(--light-gray);
    padding: 20px;
    border-radius: 8px;
    text-align: center;
}

.stat-number {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.team-section {
    margin-top: 50px;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 30px;
}

.team-member {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.05);
    text-align: center;
}

.team-member img {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto 15px;
    border: 3px solid var(--light-gray);
}

.team-member h3 {
    margin-bottom: 5px;
}

.position {
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: 10px;
}

.bio {
    font-size: 14px;
    color: var(--gray-color);
}

/* Contact Page Styles */
.contact-container {
    display: flex;
    gap: 40px;
    margin-bottom: 50px;
}

.contact-info {
    flex: 1;
}

.contact-form {
    flex: 1;
}

.contact-methods {
    margin: 30px 0;
}

.contact-method {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    margin-bottom: 25px;
    padding-left: 40px;
    position: relative;
}

.contact-method i {
    position: absolute;
    left: 0;
    top: 0;
    font-size: 24px;
    color: var(--primary-color);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--light-gray);
    border-radius: 4px;
    font-family: inherit;
}

.form-group textarea {
    min-height: 150px;
}

.submit-btn {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 12px 25px;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 500;
    transition: background 0.3s;
}

.submit-btn:hover {
    background: #3367d6;
}

.faq-section {
    margin-top: 50px;
}

.faq-accordion {
    margin-top: 30px;
}

.faq-item {
    margin-bottom: 15px;
    border: 1px solid var(--light-gray);
    border-radius: 8px;
    overflow: hidden;
}

.faq-question {
    width: 100%;
    padding: 15px 20px;
    text-align: left;
    background: var(--light-gray);
    border: none;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-question::after {
    content: '+';
    font-size: 20px;
}

.faq-item.active .faq-question::after {
    content: '-';
}

.faq-answer {
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    padding: 20px;
    max-height: 300px;
}

/* Categories Page Styles */
.category-filters {
    margin-bottom: 30px;
}

.filter-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 15px;
}

.filter-tag {
    background: var(--light-gray);
    color: var(--dark-color);
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 14px;
    transition: all 0.3s;
}

.filter-tag:hover {
    background: var(--primary-color);
    color: white;
}

.category-group {
    margin-bottom: 50px;
    padding-bottom: 30px;
    border-bottom: 1px solid var(--light-gray);
}

.category-title {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
}

.category-title i {
    color: var(--primary-color);
    font-size: 24px;
}

.category-videos {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

/* Responsive Styles */
@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        gap: 15px;
    }
    
    .main-nav ul {
        margin-top: 15px;
    }
    
    .video-player-section {
        flex-direction: column;
    }
    
    .video-sidebar {
        margin-top: 30px;
    }
}

@media (max-width: 480px) {
    .video-grid {
        grid-template-columns: 1fr;
    }
    
    .video-actions {
        margin-left: 0;
        width: 100%;
        justify-content: space-between;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 10px;
    }
}