:root{--bg-base:#f4f6fa;--bg-surface:#fff;--bg-surface2:#f0f2f7;--bg-surface3:#e8ebf0;--bg-sidebar:#1b2a4a;--bg-sidebar-hover:#243560;--bg-sidebar-active:#2d4278;--bg-header:#fff;--primary:#0a6ed1;--primary-light:#1a85ed;--primary-dark:#085cb3;--primary-glow:#0a6ed11f;--accent:#0854a0;--success:#107e3e;--success-bg:#f1fdf6;--warning:#e9730c;--warning-bg:#fef7f1;--danger:#b00;--danger-bg:#fff2f2;--info:#0a6ed1;--info-bg:#f0f7ff;--text:#32363a;--text-secondary:#515559;--text-muted:#6a6d70;--text-dim:#8b8e91;--text-inverse:#fff;--border:#dee2e6;--border-hover:#c4c6c8;--radius-sm:4px;--radius:8px;--radius-lg:12px;--radius-xl:16px;--shadow-sm:0 1px 3px #0000000f;--shadow:0 2px 8px #00000014;--shadow-lg:0 4px 20px #0000001a;--shadow-xl:0 8px 32px #0000001f;--transition:all .2s ease;--font:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px}body{font-family:var(--font);background:var(--bg-base);color:var(--text);-webkit-font-smoothing:antialiased;min-height:100vh;overflow-x:hidden}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:#c4c6c8;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#8b8e91}.app-layout{min-height:100vh;display:flex}.main-content{background:var(--bg-base);flex-direction:column;flex:1;display:flex;overflow:hidden}.page-content{flex:1;padding:28px 32px;overflow-y:auto}.card{background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius-lg);transition:var(--transition);box-shadow:var(--shadow-sm);padding:24px}.card:hover{box-shadow:var(--shadow)}.btn{border-radius:var(--radius);font-family:var(--font);cursor:pointer;transition:var(--transition);white-space:nowrap;letter-spacing:.01em;border:none;align-items:center;gap:8px;padding:8px 16px;font-size:13px;font-weight:600;text-decoration:none;display:inline-flex}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark);box-shadow:var(--shadow);transform:translateY(-1px)}.btn-accent{background:var(--accent);color:#fff}.btn-accent:hover{background:#074b8a}.btn-ghost{color:var(--text-secondary);border:1px solid var(--border);background:0 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var(--primary-glow)}.form-input::placeholder{color:var(--text-dim)}.form-select{cursor:pointer}.form-textarea{resize:vertical;min-height:80px}.form-grid{gap:16px;display:grid}.form-grid-2{grid-template-columns:1fr 1fr}.form-grid-3{grid-template-columns:1fr 1fr 1fr}.table-container{border-radius:var(--radius-lg);border:1px solid var(--border);box-shadow:var(--shadow-sm);background:#fff;overflow-x:auto}.table{border-collapse:collapse;width:100%}.table thead{background:var(--bg-surface2)}.table th{text-align:left;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;border-bottom:1px solid var(--border);white-space:nowrap;padding:12px 16px;font-size:12px;font-weight:700}.table td{border-bottom:1px solid var(--border);vertical-align:middle;padding:12px 16px;font-size:14px}.table tbody tr{transition:var(--transition)}.table tbody tr:hover{background:#f6f8fc}.table tbody tr:last-child 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var(--border);border-radius:var(--radius);cursor:pointer;transition:var(--transition);box-shadow:var(--shadow-sm);margin-bottom:8px;padding:14px}.kanban-card:hover{box-shadow:var(--shadow-lg);border-color:var(--primary);transform:translateY(-2px)}.timeline{padding-left:24px;position:relative}.timeline:before{content:"";background:var(--border);width:2px;position:absolute;top:0;bottom:0;left:6px}.timeline-item{margin-bottom:18px;position:relative}.timeline-dot{border:2px solid var(--bg-surface);background:var(--primary);border-radius:50%;width:12px;height:12px;position:absolute;top:4px;left:-21px}.timeline-content{background:var(--bg-surface2);border:1px solid var(--border);border-radius:var(--radius);padding:12px 14px}.timeline-date{color:var(--text-dim);margin-bottom:4px;font-size:11px}.section-title{color:var(--text);align-items:center;gap:8px;margin-bottom:16px;font-size:15px;font-weight:700;display:flex}.alert{border-radius:var(--radius);align-items:flex-start;gap:10px;padding:12px 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