:root{--bg:#f6f7f9;--card:#ffffff;--text:#1c1e21;--text-sub:#667085;--border:#e4e7ec;--primary:#2563eb;--primary-text:#ffffff;--danger-bg:#fdecea;--danger-text:#b42318;--code-bg:#0f1216;--code-text:#e6e8eb}*{box-sizing:border-box}body,html{margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Hiragino Sans,Noto Sans JP,sans-serif;line-height:1.6;-webkit-font-smoothing:antialiased}.container{max-width:640px;margin:0 auto;padding:3rem 1.25rem 5rem}.card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:1.75rem;box-shadow:0 1px 2px rgba(16,24,40,.04)}.title{margin:0 0 .25rem;font-size:1.5rem;font-weight:800}.subtitle{margin:0 0 1.75rem;color:var(--text-sub);font-size:.95rem}.fours-signin{display:inline-flex;align-items:center;justify-content:center;gap:10px;height:40px;padding:0 12px;border-radius:4px;border:1px solid transparent;font-family:Roboto,-apple-system,BlinkMacSystemFont,Segoe UI,Hiragino Sans,Noto Sans JP,sans-serif;font-size:14px;font-weight:500;letter-spacing:.25px;line-height:1;white-space:nowrap;cursor:pointer;-webkit-user-select:none;-moz-user-select:none;user-select:none;text-decoration:none;transition:background-color .15s ease,box-shadow .15s ease,border-color .15s ease}.fours-signin__mark{width:18px;height:18px;flex:none}.fours-signin--light{background:#ffffff;border-color:#747775;color:#1f1f1f}.fours-signin--light:hover{background:#f7f8f8}.fours-signin--dark{background:#131314;border-color:#444746;color:#e3e3e3}.fours-signin--dark:hover{background:#1f2020;border-color:#5c5f61}.button-secondary{display:inline-flex;align-items:center;padding:.55rem 1rem;border:1px solid var(--border);border-radius:10px;background:transparent;color:var(--text);font-size:.9rem;font-weight:600;cursor:pointer}.button-secondary:hover{background:var(--bg)}.profile{display:flex;align-items:center;gap:1rem;margin-bottom:1.5rem}.avatar{width:64px;height:64px;border-radius:50%;object-fit:cover;background:var(--bg);border:1px solid var(--border);flex-shrink:0}.avatar-fallback{display:flex;align-items:center;justify-content:center;font-size:1.5rem;font-weight:800;color:var(--text-sub)}.profile-name{margin:0;font-size:1.2rem;font-weight:700}.profile-sub{margin:.1rem 0 0;color:var(--text-sub);font-size:.9rem}.field-list{margin:0 0 1.5rem;border-top:1px solid var(--border)}.field-row{display:flex;gap:1rem;padding:.6rem 0;border-bottom:1px solid var(--border);font-size:.9rem}.field-label{width:8rem;flex-shrink:0;color:var(--text-sub)}.field-value{word-break:break-all}details{margin-bottom:1.5rem}summary{cursor:pointer;color:var(--text-sub);font-size:.85rem}pre{margin:.75rem 0 0;padding:1rem;background:var(--code-bg);color:var(--code-text);overflow-x:auto;font-size:.8rem;line-height:1.5}.alert,pre{border-radius:10px}.alert{margin-bottom:1.5rem;padding:.75rem 1rem;background:var(--danger-bg);color:var(--danger-text);font-size:.9rem}.footer{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:.75rem;margin-top:2rem;padding-top:1rem;border-top:1px solid var(--border)}.footer-note{margin:0;color:var(--text-sub);font-size:.8rem}.footer-note code{background:rgba(16,24,40,.06);padding:.1rem .35rem;border-radius:5px}.repo-link{display:inline-flex;align-items:center;gap:.4rem;color:var(--text-sub);font-size:.8rem;font-weight:600;text-decoration:none}.repo-link:hover{color:var(--text)}.repo-link__icon{width:16px;height:16px;flex:none}