body{margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,sans-serif;background:#f4f6f8}.app-container{max-width:700px;margin:40px auto;padding:24px;background:#fff;border-radius:12px;box-shadow:0 10px 30px #00000014}h1{text-align:center;margin-bottom:20px;color:#1f2937}.form{display:grid;gap:10px}input,select,button{padding:10px;font-size:16px}button{background:#2563eb;color:#fff;border:none;border-radius:6px;cursor:pointer}button:hover{background:#1d4ed8}.task-list{margin-top:24px}.task{padding:12px;border-radius:8px;margin-bottom:10px}.task.low{background:#dcfce7}.task.medium{background:#dbeafe}.task.high{background:#fee2e2}.task-actions{margin-top:6px;display:flex;gap:10px}.task-actions button{background:transparent;color:#374151;border:none;cursor:pointer}