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

body {
    font-family: 'Crimson Text', Georgia, serif;
    background-color: #f5f1e9;
    line-height: 1.6;
    color: #2c2c2c;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

header {
    text-align: center;
    margin-bottom: 3rem;
    padding: 2rem 0;
    background: white;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

h1 {
    font-size: 2.5rem;
    color: #1a1a1a;
    margin-bottom: 1rem;
}

.description {
    font-size: 1.1rem;
    color: #666;
    max-width: 800px;
    margin: 0 auto;
}

.lectures-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    padding: 2rem;
}

.lecture-item {
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.lecture-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

.lecture-item h2 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #2d3748;
}

.lecture-item a {
    color: #2d3748;
    text-decoration: none;
    transition: color 0.2s ease;
}

.lecture-item a:hover {
    color: #4a5568;
}

.lecture-item .description {
    font-size: 1rem;
    color: #4a5568;
    line-height: 1.5;
}