/* Default light theme */
body {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    color: #333;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    transition: all 0.5s ease;
    min-height: 100vh;
    margin: 0;
    padding: 0;
}

.container {
    text-align: center;
    margin-top: 50px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    padding: 20px;
}

.content {
    margin-top: 40px;
    text-align: left;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.content h2, .content h3 {
    margin-top: 30px;
}

.content ul {
    margin: 15px 0;
    padding-left: 20px;
}

.content li {
    margin: 8px 0;
}

/* Styled button */
button {
    padding: 12px 24px;
    font-size: 18px;
    cursor: pointer;
    border: none;
    border-radius: 25px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    font-weight: bold;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

button:hover {
    background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

button:active {
    transform: translateY(0);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

/* Dark theme */
body.dark-mode {
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    color: #ecf0f1;
}

body.dark-mode button {
    background: linear-gradient(135deg, #ff6b6b 0%, #ffa726 100%);
    color: #121212;
}

body.dark-mode button:hover {
    background: linear-gradient(135deg, #ffa726 0%, #ff6b6b 100%);
}