:root{--primary-color: #6366f1;--bg-color: #ffffff;--text-main: #1e293b;--text-muted: #64748b;--border-color: #e2e8f0;--grid-line: #f1f5f9;--header-height: 64px;--toolbar-height: 56px;--table-header-height: 40px;--day-width-base: 80px;--sidebar-width: 680px;--status-yet-to-start: #94a3b8;--status-on-going: #facc15;--status-completed: #22c55e;--today-column-bg: rgba(99, 102, 241, .05);--today-marker-color: #ef4444}*{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;width:100%;overflow:hidden}body{font-family:Inter,system-ui,-apple-system,sans-serif;background-color:var(--bg-color);color:var(--text-main)}#app{display:flex;flex-direction:column;height:100vh}.top-header{height:var(--header-height);padding:0 1.5rem;border-bottom:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between;background:#fff;z-index:100;flex-shrink:0}.project-title{font-size:1.125rem;font-weight:700;color:var(--text-main)}.project-meta{font-size:.75rem;color:var(--text-muted);font-weight:500}.toolbar{height:var(--toolbar-height);padding:0 1rem;background:#fcfcfc;border-bottom:1px solid var(--border-color);display:flex;align-items:center;z-index:90;flex-shrink:0}.toolbar-group{display:flex;align-items:center;gap:.5rem;padding-right:1rem;border-right:1px solid var(--border-color);margin-right:.5rem}.toolbar-group:last-child{border-right:none;margin-right:0}.toolbar-spacer{flex-grow:1}.input-control{padding:.5rem .75rem;border:1px solid var(--border-color);border-radius:6px;font-size:.8125rem;color:var(--text-main);background:#fff;outline:none}.input-control:focus{border-color:var(--primary-color)}.btn{padding:.4rem .75rem;border-radius:6px;font-size:.8125rem;font-weight:600;cursor:pointer;border:1px solid var(--border-color);background:#fff;color:var(--text-main);display:flex;align-items:center;gap:.4rem;white-space:nowrap;transition:all .2s}.btn:hover{background:#f8fafc;border-color:#cbd5e1}.btn-primary{background:var(--primary-color);color:#fff;border:none}.btn-primary:hover{background:#4f46e5}.btn-secondary{color:var(--text-muted);font-weight:500;font-size:.75rem}.btn-toggle.active{background:#e0e7ff;color:var(--primary-color);border-color:#c7d2fe}.scroll-hint{font-size:.7rem;color:var(--text-muted);font-style:italic;opacity:.8}.status-pill{padding:.25rem .6rem;border-radius:20px;font-size:.75rem;font-weight:600;cursor:pointer;border:1px solid transparent;transition:all .2s}.pill-yet-to-start{background:#f1f5f9;color:#64748b}.pill-yet-to-start.active{border-color:var(--status-yet-to-start);background:#fff}.pill-on-going{background:#fef9c3;color:#a16207}.pill-on-going.active{border-color:var(--status-on-going);background:#fff}.pill-completed{background:#dcfce7;color:#15803d}.pill-completed.active{border-color:var(--status-completed);background:#fff}.gantt-machine{display:flex;flex-grow:1;overflow:hidden}.gantt-sidebar{width:var(--sidebar-width);flex-shrink:0;border-right:1px solid var(--border-color);display:flex;flex-direction:column;background:#fff;z-index:50}.sidebar-header-row{height:var(--table-header-height);display:flex;background:#f8fafc;border-bottom:1px solid var(--border-color);flex-shrink:0}.sidebar-col{padding:0 .75rem;display:flex;align-items:center;font-size:11px;font-weight:700;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;border-right:1px solid var(--grid-line)}.sidebar-body{overflow:hidden;flex-grow:1}.sidebar-row{display:flex;border-bottom:1px solid var(--grid-line);min-height:48px}.sidebar-cell{padding:.75rem;display:flex;align-items:center;font-size:13px;color:var(--text-main);border-right:1px solid var(--grid-line);line-height:1.4;word-break:break-word}.status-dot{width:8px;height:8px;border-radius:50%;margin-right:8px;flex-shrink:0}.gantt-timeline-container{flex-grow:1;overflow-x:scroll!important;overflow-y:hidden;background:#fff;position:relative;scroll-behavior:smooth}.gantt-timeline-container::-webkit-scrollbar{height:10px;background:#f1f5f9}.gantt-timeline-container::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:5px}.gantt-timeline-container::-webkit-scrollbar-thumb:hover{background:#94a3b8}.gantt-svg{display:block}.gantt-tooltip{position:fixed;background:#0f172af2;color:#fff;padding:.75rem 1rem;border-radius:8px;font-size:12px;pointer-events:none;z-index:1000;box-shadow:0 10px 15px -3px #0000001a;display:none;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.1)}.gantt-legend{position:fixed;bottom:1.25rem;right:1rem;background:#fff;padding:.6rem .8rem;border-radius:8px;border:1px solid var(--border-color);box-shadow:0 4px 6px -1px #0000001a;display:flex;gap:1rem;z-index:80;transition:all .3s}.gantt-legend.hidden{opacity:0;pointer-events:none;transform:translateY(10px)}.legend-item{display:flex;align-items:center;gap:.4rem;font-size:11px;font-weight:600;color:var(--text-muted)}.legend-swatch{width:10px;height:10px;border-radius:3px}.day-line,.row-line{stroke:var(--grid-line);stroke-width:1}.header-bg{fill:#f8fafc;stroke:var(--border-color)}.header-text{font-size:10px;font-weight:600;fill:var(--text-muted)}.today-bg{fill:var(--today-column-bg)}.today-line{stroke:var(--today-marker-color);stroke-width:2;stroke-dasharray:4 2}.task-bar{rx:6px;ry:6px;cursor:pointer;transition:opacity .2s}.task-bar:hover{opacity:.85}.bar-yet-to-start{fill:var(--status-yet-to-start)}.bar-on-going{fill:var(--status-on-going)}.bar-completed{fill:var(--status-completed)}.status-container{height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;background:#f8fafc}.loader{width:40px;height:40px;border:3px solid #e2e8f0;border-top-color:#6366f1;border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.auth-container{height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;background:#f8fafc;text-align:center;padding:2rem}.auth-card{background:#fff;padding:3rem;border-radius:12px;box-shadow:0 10px 25px -5px #0000001a;border:1px solid var(--border-color);max-width:400px;width:100%}.auth-logo{width:120px;height:120px;margin:0 auto 1.5rem;display:block}.auth-logo svg{width:100%;height:100%}.header-logo{width:44px;height:44px;flex-shrink:0}.auth-title{font-size:1.5rem;font-weight:700;margin-bottom:.5rem}.auth-desc{color:var(--text-muted);font-size:.875rem;margin-bottom:2rem}.user-profile{display:flex;align-items:center;gap:.75rem;font-size:.8125rem;font-weight:500;color:var(--text-muted)}.user-avatar{width:24px;height:24px;border-radius:50%;background:#e2e8f0}