.portrait {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    display: block;
    margin: 0 auto 20px auto;
    object-fit: cover;
}

.title {
    text-align: center;
    margin-bottom: 0.2em;
}

.subtitle {
    text-align: center;
    font-size: medium;
    font-weight: bold;
    margin-top: 0;
}

body {
    line-height: 1.6;
    font-size: 18px;
    padding: 0 10px;
    margin: 60px auto;
    max-width: 700px;
    background-color: black;
    color: white;
}

h2,
h3 {
    line-height: 1.2;
}

h2 {
    font-style: italic;
    font-size: 18px;
}

a:link,
a:visited {
    color: #00b300;
}

body.light a:link,
body.light a:visited {
    color: #006400;
}

code,
.code {
    font-family: Consolas, "Liberation Mono", Menlo, Courier, monospace;
    font-size: 85%;
    line-height: 1.6;
    padding: 0;
    margin: 0;
    background-color: rgba(0, 0, 0, 0.04);
    border-radius: 3px;
}

body.dark code,
body.dark .code {
    background-color: rgba(255, 255, 255, 0.08);
}

.theme-toggle {
    position: fixed;
    top: 20px;
    right: 30px;
    background: #222;
    color: #fff;
    border-radius: 50%;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 1000;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
    font-size: 1.5rem;
    transition: background 0.2s, color 0.2s;
    border: none;
}

.theme-toggle.light {
    background: #eee;
    color: #222;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

@media print {
    .theme-toggle {
        display: none !important;
    }

    body {
        margin: 24px auto;
        padding: 0 16px;
        background: #fff !important;
        color: #111 !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    a:link,
    a:visited {
        color: #006400 !important;
    }

    body.dark code,
    body.dark .code {
        background-color: rgba(0, 0, 0, 0.06) !important;
        color: #111 !important;
    }
}