:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media(prefers-color-scheme:light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}*{margin:0;padding:0;box-sizing:border-box;font-family:Cairo,Segoe UI,Tahoma,Geneva,Verdana,sans-serif}body{background:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh;direction:rtl}.kanban-container{padding:20px;max-width:1400px;margin:0 auto}.kanban-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:30px;background:#fff;padding:20px 30px;border-radius:16px;box-shadow:0 4px 20px #0000001a}.kanban-header h1{color:#333;font-size:28px;font-weight:700}.btn-add{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;padding:12px 24px;border-radius:8px;font-size:16px;font-weight:600;cursor:pointer;transition:transform .2s}.btn-add:hover{transform:translateY(-2px);box-shadow:0 6px 20px #667eea66}.kanban-board{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px}.kanban-column{background:#fff;border-radius:12px;padding:16px;box-shadow:0 2px 8px #00000014}.column-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;padding-bottom:12px;border-bottom:3px solid #e5e7eb;border-top:4px solid;padding-top:12px;border-radius:8px 8px 0 0}.column-header h2{font-size:18px;font-weight:700;color:#1f2937}.task-count{background:#f3f4f6;color:#6b7280;padding:4px 12px;border-radius:12px;font-size:14px;font-weight:600}.task-list{min-height:400px;transition:background .2s}.task-list.dragging-over{background:#f9fafb;border-radius:8px}.task-card{background:#fff;border:1px solid #e5e7eb;border-radius:8px;padding:12px;margin-bottom:12px;cursor:grab;transition:all .2s}.task-card:hover{box-shadow:0 4px 12px #0000001a;transform:translateY(-2px)}.task-card.dragging{opacity:.8;transform:rotate(2deg);box-shadow:0 8px 24px #0003}.task-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}.priority-badge{color:#fff;padding:4px 8px;border-radius:4px;font-size:11px;font-weight:700;text-transform:uppercase}.btn-delete{background:transparent;border:none;cursor:pointer;font-size:18px;opacity:.6;transition:opacity .2s}.btn-delete:hover{opacity:1}.task-card h3{font-size:15px;font-weight:600;color:#1f2937;margin-bottom:6px}.task-description{font-size:13px;color:#6b7280;line-height:1.4;margin-bottom:8px}.task-tags{display:flex;flex-wrap:wrap;gap:4px}.tag{background:#f3f4f6;color:#6b7280;padding:2px 8px;border-radius:12px;font-size:11px}.modal-overlay{position:fixed;inset:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000}.modal{background:#fff;border-radius:16px;padding:30px;width:90%;max-width:500px;box-shadow:0 20px 60px #0000004d}.modal h2{margin-bottom:20px;color:#1f2937;font-size:22px}.modal input,.modal select{width:100%;padding:12px;border:2px solid #e5e7eb;border-radius:8px;font-size:15px;margin-bottom:16px;font-family:inherit}.modal input:focus,.modal select:focus{outline:none;border-color:#667eea}.modal-actions{display:flex;gap:12px;justify-content:flex-end}.btn-primary,.btn-secondary{padding:10px 20px;border:none;border-radius:8px;font-size:15px;font-weight:600;cursor:pointer;transition:all .2s}.btn-primary{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 20px #667eea66}.btn-secondary{background:#f3f4f6;color:#6b7280}.btn-secondary:hover{background:#e5e7eb}.loading{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;color:#fff}.spinner{width:50px;height:50px;border:4px solid rgba(255,255,255,.3);border-top:4px solid white;border-radius:50%;animation:spin 1s linear infinite;margin-bottom:16px}@keyframes spin{to{transform:rotate(360deg)}}@media(max-width:768px){.kanban-board{grid-template-columns:1fr}}