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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f4f4f4;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    background-color: white;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 40px 20px;
    text-align: center;
}

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

header .subtitle {
    font-size: 1.2em;
    opacity: 0.9;
}

main {
    flex: 1;
    padding: 40px 20px;
}

section {
    margin-bottom: 40px;
}

h2 {
    color: #667eea;
    margin-bottom: 15px;
    font-size: 1.8em;
    border-bottom: 2px solid #667eea;
    padding-bottom: 10px;
}

p {
    margin-bottom: 15px;
    text-align: justify;
}

ul {
    margin-left: 30px;
    margin-bottom: 15px;
}

li {
    margin-bottom: 10px;
}

.last-updated {
    font-style: italic;
    color: #666;
    font-size: 0.9em;
}

footer {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 20px;
    margin-top: auto;
}

footer p {
    margin: 0;
}

a {
    color: #667eea;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

@media (max-width: 768px) {
    header h1 {
        font-size: 1.8em;
    }

    header .subtitle {
        font-size: 1em;
    }

    main {
        padding: 20px 15px;
    }

    h2 {
        font-size: 1.4em;
    }

    .container {
        margin: 0;
    }
}