body {
    font-family: 'Segoe UI', 'Roboto', Arial, sans-serif;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    background: #f7f7fa;
    color: #222;
    line-height: 1.7;
}
header {
    background: linear-gradient(90deg, #4e54c8 0%, #8f94fb 100%);
    color: white;
    text-align: center;
    padding: 2em 1em 1em 1em;
    box-shadow: 0 2px 8px rgba(0,0,0,0.07);
    letter-spacing: 1px;
}
nav {
    margin-top: 1em;
}
nav a {
    color: #fff;
    margin: 0 1em;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}
nav a:hover {
    color: #ffd700;
}
main {
    padding: 32px 0;
    max-width: 800px;
    margin: 0 auto;
}
section {
    background: #fff;
    margin-bottom: 40px;
    border-radius: 12px;
    box-shadow: 0 2px 16px rgba(0,0,0,0.08);
    padding: 32px 28px;
    transition: box-shadow 0.2s;
}
section:hover {
    box-shadow: 0 4px 24px rgba(0,0,0,0.12);
}

h1, h2, h3, h4 {
    font-family: 'Merriweather', 'Georgia', serif;
    color: #333;
    margin-top: 0;
}
h1 {
    font-size: 2.5em;
    margin-bottom: 0.5em;
}
h2 {
    font-size: 1.7em;
    margin-bottom: 0.7em;
}
h3 {
    font-size: 1.2em;
    margin-bottom: 0.5em;
}
p {
    margin-bottom: 1.2em;
}
a {
    color: #4e54c8;
    text-decoration: underline;
    transition: color 0.2s;
}
a:hover {
    color: #222;
}
img {
    max-width: 100%;
    border-radius: 8px;
    margin: 16px 0;
    box-shadow: 0 1px 8px rgba(0,0,0,0.07);
}