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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

a {
    text-decoration: none;
    color: #0d6efd;
}

img {
    max-width: 100%;
    height: auto;
}

/* Header */
header {
    background-color: #fff;
    box-shadow: 0 2px 10px 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 img {
    height: 40px;
}

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

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

.desktop-nav ul li a {
    color: #333;
    font-weight: 500;
    transition: color 0.3s;
}

.desktop-nav ul li a:hover {
    color: #0d6efd;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: #333;
}

/* Hero Section */
.hero {
    background-color: #0d6efd;
    color: white;
    padding: 60px 0;
    text-align: center;
    margin-bottom: 40px;
}

.hero-content h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 30px;
}

.search-container {
    max-width: 600px;
    margin: 0 auto;
}

.search-container form {
    display: flex;
}

.search-container input {
    flex: 1;
    padding: 12px 15px;
    border: none;
    border-radius: 4px 0 0 4px;
    font-size: 16px;
}

.search-container button {
    background-color: #fff;
    color: #0d6efd;
    border: none;
    border-radius: 0 4px 4px 0;
    padding: 0 20px;
    cursor: pointer;
    font-size: 18px;
}

/* Video Sections */
section {
    margin-bottom: 40px;
}

section h2 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: #333;
}

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

.video-card {
    background-color: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
}

.video-card:hover {
    transform: translateY(-5px);
}

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

.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-color: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 12px;
}

.video-info {
    padding: 15px;
}

.video-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
}

.video-channel {
    font-size: 14px;
    color: #666;
    margin-bottom: 5px;
}

.video-metadata {
    display: flex;
    font-size: 12px;
    color: #888;
}

.video-views {
    margin-right: 10px;
}

/* Categories Section */
.category-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
}

.category-card {
    position: relative;
    height: 120px;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.category-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.category-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.7), transparent);
    display: flex;
    align-items: flex-end;
    padding: 15px;
}

.category-name {
    color: white;
    font-weight: 600;
}

/* Footer */
footer {
    background-color: #333;
    color: #fff;
    padding: 40px 0;
}

.footer-container {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}

.footer-column {
    flex: 1;
    min-width: 200px;
    margin-bottom: 20px;
}

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

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

.footer-column ul li {
    margin-bottom: 8px;
}

.footer-column ul li a {
    color: #ccc;
    transition: color 0.3s;
}

.footer-column ul li a:hover {
    color: #fff;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    margin-top: 20px;
    border-top: 1px solid #444;
}

/* Mobile Menu */
.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    z-index: 200;
    display: none;
}

.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 250px;
    height: 100%;
    background-color: white;
    padding: 20px;
    overflow-y: auto;
}

.mobile-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.mobile-menu-close {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
}

.mobile-menu-nav ul {
    list-style: none;
}

.mobile-menu-nav ul li {
    margin-bottom: 15px;
}

.mobile-menu-nav ul li a {
    color: #333;
    font-size: 18px;
    font-weight: 500;
}

/* Media Queries */
@media (max-width: 992px) {
    .video-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .category-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .desktop-nav {
        display: none;
    }

    .mobile-menu-toggle {
        display: block;
    }

    .hero {
        padding: 40px 0;
    }

    .hero-content h1 {
        font-size: 2rem;
    }

    .footer-container {
        flex-direction: column;
    }

    .footer-column {
        margin-bottom: 30px;
    }
}

@media (max-width: 576px) {
    .video-grid {
        grid-template-columns: 1fr;
    }

    .category-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .hero-content h1 {
        font-size: 1.8rem;
    }

    .search-container input,
    .search-container button {
        padding: 10px;
    }
}