:root {
    --background: #f6f4f1;
    --text: #222;
    --darker: #000;
    --lighter: #444;
    --accent: #333;
    --max-width: 720px;
}

body {
    margin: 0;
    font-family: Helvetica, Arial, sans-serif;
    background-color: var(--background);
    color: var(--text);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1rem;
}

header {
    text-align: center;
    margin-bottom: 2rem;
}

header img {
    width: 160px;
    height: 160px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
    margin-bottom: 1rem;
}

header h1 {
    margin: 0;
    font-size: 1.4rem;
    font-weight: bold;
}

header p {
    margin: 0.2rem 0 0;
    font-size: 1rem;
    color: #444;
}

main {
    width: 100%;
    max-width: var(--max-width);
}

section {
    margin: 2.5rem 0;
    padding: 0 0.5rem;
}

section h2 {
    font-size: 1.2rem;
    font-weight: normal;
    color: var(--accent);
    margin-bottom: 0.8rem;
}

section p {
    margin: 0.6rem 0;
}

blockquote {
    text-align: center;
    font-style: italic;
    color: #555;
    border-left: 4px solid var(--accent);
    padding: 0.8rem 1rem;
    margin: 2rem auto 1rem;
    max-width: 480px;
    background: #f9f8f6;
    border-radius: 6px;
}

.quote-author {
    text-align: center;
    font-size: 0.9rem;
    color: #777;
    margin-top: -0.5rem;
}

footer {
    margin-top: 3rem;
    font-size: 0.9rem;
    text-align: center;
    color: #666;
}

a {
    color: inherit;
    text-decoration: underline;
}

@media (min-width: 700px) {
    body {
        padding: 3rem 2rem 5rem;
    }

    section {
        padding: 0;
    }
}

.hidden {
    display: none;
}

span.text-highlight {
    color: var(--lighter);
    font-weight: bold;
}

a.link-external {
    position: relative;
    margin-right: 10px;
}

a.link-external::after {
    content: "\2197";
    font-size: 0.6rem;
    position: absolute;
    top: 0;
    left: 100%;
    margin-left: 2px;
}