:root{--bg-primary:#fafbfc;--bg-secondary:#ffffff;--bg-tertiary:#f4f5f7;--border-light:#e1e4e8;--border-medium:#d0d7de;--text-primary:#24292f;--text-secondary:#656d76;--text-muted:#8b949e;--accent-primary:#0969da;--accent-secondary:#0550ae;--accent-light:#dbeafe;--success:#1a7f37;--warning:#bf8700;--danger:#cf222e;--shadow-sm:0 1px 2px rgba(31,35,40,0.04);--shadow-md:0 3px 6px rgba(31,35,40,0.06);--shadow-lg:0 8px 16px rgba(31,35,40,0.08);--radius-sm:4px;--radius-md:6px;--radius-lg:8px;--radius-xl:12px}#__next,body,html{height:100%;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Noto Sans,Helvetica,Arial,sans-serif;color:var(--text-primary);line-height:1.5;font-size:14px}.page,body{background-color:var(--bg-primary)}.page{min-height:100vh}.topbar{height:64px;display:flex;align-items:center;justify-content:space-between;padding:0 24px;background-color:var(--bg-secondary);border-bottom:1px solid var(--border-light);box-shadow:var(--shadow-sm)}.topbar h1{margin:0;font-size:20px;font-weight:600;color:var(--text-primary)}.profile{padding:8px 16px;background-color:var(--bg-tertiary);border:1px solid var(--border-light);border-radius:var(--radius-md);font-size:14px;color:var(--text-secondary)}.kanban-wrap{padding:24px;background-color:var(--bg-primary);min-height:calc(100vh - 64px)}.kanban-container{display:flex;gap:16px;align-items:flex-start;min-height:calc(100vh - 112px)}.kanban-grid{display:flex;gap:16px;flex:1 1;overflow-x:auto;padding-bottom:20px}.kanban-column{background-color:var(--bg-secondary);border:1px solid var(--border-light);border-radius:var(--radius-lg);padding:16px;min-height:500px;width:280px;box-shadow:var(--shadow-sm);display:flex;flex-direction:column}.kanban-column-header{margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid var(--border-light);display:flex;align-items:flex-start;justify-content:space-between}.kanban-column-title{color:var(--text-primary);font-size:14px;font-weight:600;margin:0 0 4px;text-transform:uppercase;letter-spacing:.5px}.kanban-column-count{font-size:12px;color:var(--text-muted)}.kanban-column-body{flex:1 1;min-height:50px;border-radius:var(--radius-md);transition:background-color .2s ease}.kanban-column-body.drag-over{background-color:var(--accent-light)}.kanban-card{background-color:var(--bg-secondary);border:1px solid var(--border-light);border-radius:var(--radius-md);padding:12px;margin-bottom:8px;box-shadow:var(--shadow-sm);cursor:pointer;transition:all .2s ease}.kanban-card:hover{box-shadow:var(--shadow-md);border-color:var(--border-medium)}.kanban-card.dragging{box-shadow:var(--shadow-lg);transform:rotate(2deg);border-color:var(--accent-primary)}.kanban-card-title{font-weight:500;font-size:14px;color:var(--text-primary);margin-bottom:4px;line-height:1.3}.kanban-card-date{font-size:12px;color:var(--text-muted);margin-bottom:6px}.kanban-card-snippet{font-size:13px;color:var(--text-secondary);line-height:1.4;display:-webkit-box;-webkit-line-clamp:3;line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.create-board-panel{width:380px;background-color:var(--bg-secondary);border:1px solid var(--border-light);border-radius:var(--radius-lg);padding:16px;max-height:80vh;overflow-y:auto;box-shadow:var(--shadow-md)}.panel-title{margin:0 0 16px;color:var(--text-primary);font-size:16px;font-weight:600}.column-item{margin-bottom:12px;padding:12px;background-color:var(--bg-tertiary);border:1px solid var(--border-light);border-radius:var(--radius-md)}.column-header{display:flex;gap:8px;margin-bottom:8px;align-items:center}.column-advanced{padding:12px;background-color:rgba(0,0,0,.02);border:1px solid var(--border-light);border-radius:var(--radius-md);margin-top:8px}.column-advanced-title{margin:0 0 8px;font-size:13px;color:var(--text-muted);font-weight:500}.add-column-section{margin-top:16px;padding:12px;background-color:var(--bg-tertiary);border:2px dashed var(--border-medium);border-radius:var(--radius-md)}.add-column-title{margin:0 0 12px;font-weight:600}.add-column-title,.input{font-size:14px;color:var(--text-primary)}.input{width:100%;padding:8px 12px;border:1px solid var(--border-light);border-radius:var(--radius-md);background-color:var(--bg-secondary);transition:border-color .2s ease,box-shadow .2s ease;box-sizing:border-box}.input:focus{outline:none;border-color:var(--accent-primary);box-shadow:0 0 0 3px var(--accent-light)}.input-small{padding:6px 8px;font-size:12px}.color-input{width:60px;height:32px;border:1px solid var(--border-light);border-radius:var(--radius-md);cursor:pointer}.label{display:block;font-size:12px;margin-bottom:4px;color:var(--text-primary)}.btn,.label{font-weight:500}.btn{display:inline-flex;align-items:center;justify-content:center;padding:8px 16px;border:1px solid var(--border-light);border-radius:var(--radius-md);font-size:14px;cursor:pointer;transition:all .2s ease;text-decoration:none}.btn-primary{background-color:var(--accent-primary);color:white;border-color:var(--accent-primary)}.btn-primary:hover:not(:disabled){background-color:var(--accent-secondary);border-color:var(--accent-secondary)}.btn-secondary{background-color:var(--bg-secondary);color:var(--text-primary);border-color:var(--border-light)}.btn-secondary:hover:not(:disabled){background-color:var(--bg-tertiary);border-color:var(--border-medium)}.btn-success{background-color:var(--success);color:white;border-color:var(--success)}.btn-danger{background-color:var(--danger);color:white;border-color:var(--danger)}.btn-small{padding:6px 12px;font-size:12px}.btn:disabled{opacity:.5;cursor:not-allowed}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-between{justify-content:space-between}.justify-center{justify-content:center}.gap-2{gap:8px}.gap-3{gap:12px}.mb-2{margin-bottom:8px}.mb-3{margin-bottom:12px}.text-muted{color:var(--text-muted)}.text-secondary{color:var(--text-secondary)}.auth-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background-color:var(--bg-primary);padding:20px}.auth-card{background-color:var(--bg-secondary);padding:32px;border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);width:100%;max-width:400px;border:1px solid var(--border-light)}.auth-card h2{margin:0 0 24px;font-size:24px;font-weight:600;color:var(--text-primary);text-align:center}.auth-card .label{margin-bottom:16px}.auth-card .input{margin-top:4px}.auth-card .btn{width:100%;margin-top:16px;padding:12px;font-size:16px}.loading{display:flex;align-items:center;justify-content:center;height:200px}.empty-state,.loading{color:var(--text-muted)}.empty-state{background-color:var(--bg-secondary);border:2px dashed var(--border-medium);border-radius:var(--radius-lg);padding:40px;text-align:center;width:300px}.empty-state p{margin:0;font-size:14px}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:rgba(0,0,0,.5);display:flex;align-items:center;justify-content:center;z-index:1000;padding:20px}.modal-content{background-color:var(--bg-secondary);border-radius:var(--radius-lg);border:1px solid var(--border-light);box-shadow:var(--shadow-lg);max-width:500px;width:100%;max-height:80vh;overflow:hidden;display:flex;flex-direction:column}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:20px 24px;border-bottom:1px solid var(--border-light)}.modal-title{margin:0;font-size:18px;font-weight:600;color:var(--text-primary)}.modal-close{background:none;border:none;font-size:18px;cursor:pointer;color:var(--text-muted);padding:4px;border-radius:var(--radius-sm);transition:all .2s ease}.modal-close:hover{background-color:var(--bg-tertiary);color:var(--text-primary)}.modal-body{padding:24px;overflow-y:auto;flex:1 1}.column-config-form{gap:16px}.column-config-form,.form-group{display:flex;flex-direction:column}.form-group{gap:4px}.form-row{display:flex;gap:12px;align-items:flex-end}.form-row .form-group{flex:1 1}.add-column-btn{display:flex;align-items:center;justify-content:center;min-width:280px;height:60px;background-color:var(--bg-tertiary);border:2px dashed var(--border-medium);border-radius:var(--radius-lg);color:var(--text-muted);font-size:16px;font-weight:500;cursor:pointer;transition:all .2s ease}.add-column-btn:hover{background-color:var(--accent-light);border-color:var(--accent-primary);color:var(--accent-primary)}.column-header-actions{display:flex;gap:4px;opacity:0;transition:opacity .2s ease}.kanban-column:hover .column-header-actions{opacity:1}.column-action-btn{display:flex;align-items:center;justify-content:center;width:24px;height:24px;background-color:var(--bg-tertiary);border:1px solid var(--border-light);border-radius:var(--radius-sm);color:var(--text-muted);cursor:pointer;transition:all .2s ease;font-size:12px}.column-action-btn:hover{background-color:var(--bg-secondary);border-color:var(--border-medium);color:var(--text-primary)}.modal-content.large{max-width:900px!important;width:90vw;max-height:90vh;overflow-y:auto}@media (max-width:768px){.topbar{padding:0 16px}.kanban-wrap{padding:16px}.kanban-grid{gap:12px}.kanban-column{width:260px}.create-board-panel{width:100%;max-width:360px}}