/* Личный сайт Сергея — минимум стилей */
* { box-sizing: border-box; }
html { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
       line-height: 1.6; color: #222; background: #fafafa; }
body { max-width: 720px; margin: 0 auto; padding: 2rem 1.25rem; }
header { border-bottom: 1px solid #ddd; padding-bottom: 1rem; margin-bottom: 2rem; }
h1 { margin: 0 0 0.25rem 0; font-size: 1.8rem; }
h2 { margin-top: 2rem; font-size: 1.3rem; }
h3 { margin-top: 1.25rem; font-size: 1.05rem; }
.tagline { color: #666; font-style: italic; margin: 0; }
code { background: #eee; padding: 0.1em 0.3em; border-radius: 3px; font-size: 0.95em; }
ul { padding-left: 1.25rem; }
a { color: #0b62c4; text-decoration: none; }
a:hover { text-decoration: underline; }
footer { margin-top: 3rem; padding-top: 1rem; border-top: 1px solid #ddd;
         color: #666; font-size: 0.9rem; }