body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    overflow: hidden;
}

.header {
    background: linear-gradient(45deg, #667eea, #764ba2);
    color: white;
    padding: 20px;
    text-align: center;
}

.header h1 {
    margin: 0;
    font-size: 2.5em;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.content {
    padding: 30px;
}

.message-box {
    background: linear-gradient(45deg, #56ab2f, #a8e6cf);
    color: white;
    padding: 15px;
    margin: 20px 0;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(86, 171, 47, 0.3);
}

.author-info {
    background: linear-gradient(45deg, #ff6b6b, #ffa726);
    color: white;
    padding: 15px;
    margin: 20px 0;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.3);
}

nav {
    background: #f8f9fa;
    padding: 15px;
    border-bottom: 3px solid #667eea;
}

nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

nav li {
    margin: 0;
}

nav a {
    display: inline-block;
    padding: 10px 15px;
    background: #667eea;
    color: white;
    text-decoration: none;
    border-radius: 25px;
    transition: all 0.3s ease;
    font-weight: 500;
}

nav a:hover {
    background: #764ba2;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.joke1, .joke2, .joke3 {
    background: white;
    padding: 25px;
    margin: 20px 0;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    border-left: 5px solid #667eea;
    transition: transform 0.3s ease;
}

.joke1:hover, .joke2:hover, .joke3:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

.joke1 {
    border-left-color: #667eea;
}

.joke2 {
    border-left-color: #f093fb;
}

.joke3 {
    border-left-color: #4facfe;
}

.joke1 h1, .joke2 h1, .joke3 h1 {
    color: #333;
    margin-top: 0;
    font-size: 1.8em;
}

.joke1 p, .joke2 p, .joke3 p {
    color: #666;
    font-size: 1.1em;
    line-height: 1.6;
    margin-bottom: 0;
}

footer {
    background: #f8f9fa;
    text-align: center;
    padding: 20px;
    color: #666;
    border-top: 3px solid #667eea;
}