:root{--bg: #f4f6fb;--panel: #ffffff;--border: #e2e5ec;--text: #1e2433;--text-muted: #6b7385;--brand: #2563eb;--brand-dark: #1d4ed8;--success: #1ea672;--warn: #d99a2b;--danger: #dc4c4c;--radius: 10px}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text)}button{font-family:inherit;cursor:pointer}input,select,textarea{font-family:inherit}.btn{border:1px solid var(--border);background:#fff;padding:7px 14px;border-radius:8px;font-size:13px;font-weight:600;color:var(--text);transition:all .12s ease}.btn:hover{border-color:var(--brand);color:var(--brand)}.btn-primary{background:var(--brand);border-color:var(--brand);color:#fff}.btn-primary:hover{background:var(--brand-dark);color:#fff}.btn-danger{background:#fff;border-color:var(--danger);color:var(--danger)}.btn-danger:hover{background:var(--danger);color:#fff}.btn-sm{padding:4px 10px;font-size:12px}.btn:disabled{opacity:.45;cursor:not-allowed}.card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius)}.badge{display:inline-flex;align-items:center;gap:4px;padding:2px 9px;border-radius:999px;font-size:11px;font-weight:700;letter-spacing:.02em}.badge-planned{background:#eef1f6;color:#5b6472}.badge-in-progress{background:#fef3e0;color:#a5700d}.badge-complete{background:#e4f8ee;color:#14804a}.badge-not-started{background:#eef1f6;color:#5b6472}.badge-blocked{background:#fde8e8;color:#b93a3a}.app-shell{display:flex;height:100vh;overflow:hidden}.sidebar{width:230px;background:#151b2b;color:#cfd6e6;display:flex;flex-direction:column;flex-shrink:0}.sidebar .brand{padding:18px 16px;font-weight:800;color:#fff;font-size:15px;border-bottom:1px solid #262f45}.sidebar .brand small{display:block;font-weight:500;color:#8891ab;font-size:11px;margin-top:2px}.sidebar nav{flex:1;padding:10px;overflow-y:auto}.sidebar 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