:root{
      --bg:#f6f8fa;
      --card:#ffffff;
      --border:#d0d7de;
      --text:#24292f;
      --muted:#57606a;
      --blue:#0969da;
      --badge:#eaeef2;
      --shadow:0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
    }

    html, body {
      height: 100%;
      margin: 0;
    }
    *{box-sizing:border-box}
    body{margin:0;font-family:'Liebling', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;color:var(--text)}

    .page{max-width:1280px;margin:0 auto;padding:16px;display:grid;grid-template-columns:320px 1fr;gap:24px}

    /* LEFT COLUMN (profile "floats" on the left) */
    .sidebar{position:sticky;top:16px;align-self:start}
    .profile{border-right:1px solid var(--border);padding:16px;height:100vh}
    .avatar{width:150px;display:block}
    .name{margin:12px 0 4px;font-size:28px;font-weight:700}
    .username{margin:0 0 8px;color:var(--muted)}
    .bio{margin:0 0 16px;color:var(--text)}
    .btn{display:inline-block;background:#f6f8fa;border:1px solid var(--border);padding:8px 12px;border-radius:8px;text-decoration:none;color:var(--text);font-weight:600}

    /* RIGHT COLUMN */
    .content{min-width:0}
    .content-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
    .content-header h2{margin:0;font-size:20px}
    .content-header a{color:var(--blue);text-decoration:none;font-size:14px}

    .grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}

    .card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:16px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:10px;min-height:160px}
    .card-top{display:flex;align-items:center;gap:8px}
    .repo{font-weight:700}
    .repo a{color:var(--blue);text-decoration:none}
    .badge{background:var(--badge);border:1px solid var(--border);border-radius:999px;padding:2px 8px;font-size:12px;color:var(--text)}
    .desc{color:var(--muted);line-height:1.4}
    .meta{margin-top:auto;display:flex;gap:16px;align-items:center;color:var(--muted);font-size:14px}
    .lang-dot{width:12px;height:12px;border-radius:50%;background:#00b36b;display:inline-block}
    .octicon{width:16px;height:16px;vertical-align:middle}

    /* RESPONSIVE */
    @media (max-width:1100px){
      .page{grid-template-columns:260px 1fr}
    }
    @media (max-width:800px){
      .page{grid-template-columns:1fr}
      .sidebar{position:static}
      .profile{text-align:center}
      .avatar{margin:0 auto}
      .grid{grid-template-columns:1fr}
      .content-header{margin-top:8px}
    }