body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: #333;
}

.main-tutorials-container {
    max-width: 1200px;
    margin: 0 auto;
}

h1 {
    color: #67a030;
    text-align: center;
    margin-bottom: 40px;
}

.tutorial-container {
    margin-bottom: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    overflow: hidden;
}

.tutorial-header {
    background-color: #0a8ba9;
    color: white;
    padding: 15px 20px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color 0.3s;
}

.tutorial-header:hover {
    background-color: #67a030;
}

.tutorial-header h3 {
    margin: 0;
    font-size: 18px;
}

.chevron {
    transition: transform 0.3s;
}

.tutorial-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s ease-out;
    background-color: #f9f9f9;
}

.tutorial-content.active {
    max-height: 1000px;
}

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

.video-container iframe,
.video-container video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.tutorial-description {
    padding: 20px;
}

.category-title {
    margin-top: 40px;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #67a030;
    color: #2c3e50;
}

.guide-banner {
    background-color: #67a030;
    color: white;
    padding: 25px 30px;
    border-radius: 12px;
    margin-top: 100px; /* Espace pour la navbar */
    margin-bottom: 40px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.15);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.guide-banner-content {
    display: flex;
    align-items: center;
    gap: 20px;
}

.guide-banner-icon {
    font-size: 40px;
    color: white;
}

.guide-banner-text h2 {
    margin: 0 0 8px 0;
    font-size: 24px;
    font-weight: 600;
}

.guide-banner-text p {
    margin: 0;
    font-size: 16px;
    opacity: 0.95;
}

.guide-banner-btn {
    background-color: #0a8ba9;
    color: white;
    padding: 12px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    white-space: nowrap;
    transition: all 0.3s;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    display: flex;
    align-items: center;
    gap: 10px;
}

.guide-banner-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
    background-color: rgba(10, 139, 169, 0.8);
    color: white;
}

@media (max-width: 768px) {
    .guide-banner {
        flex-direction: column;
        text-align: center;
        padding: 20px;
        margin-top: 80px;
    }

    .guide-banner-content {
        flex-direction: column;
        gap: 15px;
    }

    .guide-banner-text h2 {
        font-size: 20px;
    }

    .guide-banner-text p {
        font-size: 14px;
    }
}

@media (max-width: 768px) {
    .tutorial-header h3 {
        font-size: 16px;
    }
}