:root{--bg: #0f1218;--bg-elevated: #171b24;--bg-card: #1c212c;--border: #2a303d;--text: #e8eaf0;--text-muted: #8b93a7;--accent: #5b8def;--accent-strong: #3f6fd6;--green: #3fb27f;--red: #e0596b;--amber: #e0a63f;--kiryu: #5b8def;--kurosaki: #6b7280;--miyamoto: #e0596b;--hatori: #3fb27f;font-family:Hiragino Sans,Yu Gothic,Segoe UI,system-ui,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text)}a{color:var(--accent);text-decoration:none}.app-shell{display:flex;min-height:100vh}.sidebar{width:280px;flex-shrink:0;background:var(--bg-elevated);border-right:1px solid var(--border);padding:20px 16px;display:flex;flex-direction:column;gap:20px}.brand-title{font-size:22px;font-weight:800;letter-spacing:.05em}.brand-sub{color:var(--text-muted);font-size:12px;margin-top:2px}.nav{display:flex;flex-direction:column;gap:4px}.nav a{color:var(--text);padding:8px 10px;border-radius:8px;font-size:14px}.nav a:hover{background:var(--bg-card)}.nav 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