html {
    scroll-behavior: smooth;
}

.tutorial-hero {
    margin-top: var(--navbar-height);
    background: linear-gradient(135deg, #003264 0%, #0056b3 100%);
    color: white;
    padding: 80px 0;
    text-align: center;
}

.tutorial-hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.tutorial-hero p {
    font-size: 1.1rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

.tutorial-container {
    padding: 60px 0;
    background-color: #f4f7f9;
}

.tutorial-card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    padding: 40px;
    margin-bottom: 40px;
    border: 1px solid rgba(0, 0, 0, 0.05);
    scroll-margin-top: 100px;
}

.tutorial-card h2 {
    color: var(--primary-blue);
    margin-bottom: 25px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.8rem;
}

.video-wrapper {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 */
    height: 0;
    overflow: hidden;
    border-radius: 8px;
    background: #000;
}

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

.pdf-wrapper {
    height: 700px;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid #ddd;
}

.pdf-wrapper iframe {
    width: 100%;
    height: 100%;
    border: none;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: var(--primary-blue);
    color: white;
    padding: 10px 20px;
    border-radius: 6px;
    font-weight: 600;
    margin-top: 15px;
    transition: background 0.3s;
}

.download-btn:hover {
    background-color: var(--primary-dark);
}

@media (max-width: 768px) {
    .tutorial-hero h1 {
        font-size: 2rem;
    }
    .pdf-wrapper {
        height: 500px;
    }
}