/* General Styles */
body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background: linear-gradient(to right, #004d40, #00796b);
    color: white;
}

/* Header */
header {
    text-align: center;
    padding: 20px;
    background: #004d40;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

header p {
    font-size: 1.2rem;
    margin-top: 0;
}

/* Sections */
main {
    padding: 20px;
}

h2 {
    font-size: 2rem;
    margin-bottom: 10px;
    border-bottom: 2px solid white;
    padding-bottom: 5px;
}

/* Video List */
.video-list {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin: 20px 0;
}

.video-item {
    flex: 1 1 calc(25% - 20px);
    background: white;
    color: #004d40;
    border-radius: 8px;
    padding: 15px;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s, box-shadow 0.3s;
}

.video-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 10px rgba(0, 0, 0, 0.3);
}

.video-item a {
    text-decoration: none;
    color: #004d40;
    font-weight: bold;
    font-size: 1.1rem;
}

.video-item a:hover {
    text-decoration: underline;
}

/* Footer */
footer {
    text-align: center;
    background: #003d33;
    color: white;
    padding: 10px 0;
    font-size: 0.9rem;
}