:root{
  --bg:#ffffff; --text:#111111; --muted:#666666; --accent:#0b5ed7; --border:#d9d9d9; --max:920px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{background:var(--bg);color:var(--text);font:17px/1.65 Georgia, "Times New Roman", Times, serif}
.wrap{max-width:var(--max);margin:0 auto;padding:18px}

/* Header */
header{border-bottom:1px solid var(--border);background:#fff}
.brand{font-weight:700;letter-spacing:.2px}
.nav{display:flex;align-items:center;justify-content:space-between;gap:12px}
.links{display:flex;gap:14px;flex-wrap:wrap}
.links a{padding:6px 4px;text-decoration:none;color:inherit;border-bottom:2px solid transparent}
.links a:hover{border-bottom-color:var(--accent)}
.links a.active,[aria-current="page"]{border-bottom-color:var(--accent)}

main{padding:22px 0 40px}
footer{border-top:1px solid var(--border);color:var(--muted);text-align:center;padding:20px 12px;margin-top:24px}

/* Home layout */
.home{display:grid;grid-template-columns:220px 1fr;gap:24px;align-items:start}
.portrait{position:sticky;top:16px}
.portrait img{width:100%;height:auto;display:block;border:1px solid var(--border);padding:8px;background:#fff}
.bio h1{font-size:28px;line-height:1.2;margin:0 0 8px}
.muted{color:var(--muted)}
@media (max-width:780px){.home{grid-template-columns:1fr}.portrait{position:static;max-width:240px}}

/* Sections */
section{margin:28px 0}
h1.page-title{font-size:26px;margin:0 0 10px}

/* Timeline */
.timeline{list-style:none;margin:0;padding:0}
.timeline li{display:grid;grid-template-columns:94px 1fr;gap:14px;padding:10px 0;border-bottom:1px solid var(--border)}
.timeline .year{font-weight:700;color:#222}
.timeline .title{font-weight:600}
.timeline .desc{color:var(--muted);margin:4px 0 0}

/* Buttons */
.btn{display:inline-block;padding:8px 14px;border:1px solid var(--text);color:var(--text);text-decoration:none}
.btn:hover{background:#f6f6f6}